Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JP2010183373 PROBLEM TO BE SOLVED: To provide an audio output device and a sound output method capable of preventing leakage of information by voice to a third party who has entered a room without interrupting the conference even if the third party enters a meeting room or the like. Do. SOLUTION: When the employee code read by the entry / exit monitoring unit 21 is registered in the participation list of the meeting room reservation information 62, the entry / exit management unit 12 transmits an unlock confirmation signal to the monitor control unit 34. Do. When the monitor control unit 34 receives the unlock confirmation signal, it stops outputting the sound according to the setting method set in the control setting information so that the sound can be heard only on the right side or the left side toward the monitor, After restricting the sound output from the speaker 36 by the control unit 35, the lockable signal is transmitted to the entry and exit management unit 12. When the room entry / exit management unit 12 receives the "unlockable signal", it sends a signal for unlocking the door to the room entry / exit monitoring unit 21 which has read the employee code, and unlocks the door lock to the locking unit 22. Let [Selected figure] Figure 1 Sound output device and sound output method [0001] The present invention relates to an audio output device and an audio output method capable of preventing information leakage to a third party who enters a meeting room or the like. [0002] 09-05-2019 1 Large monitors are being installed in meeting rooms as a substitute for whiteboards and are increasingly being used to communicate information to participants in a meeting. If a third party suddenly enters the meeting room, the information displayed on the large monitor may be seen by the third party who has entered the meeting room, and information to be kept secret may be leaked. The following are conventional techniques for preventing information leakage to a third party. [0003] The room entry management system described in Patent Document 1 unlocks the electric lock when the classification level information stored in the portable information recording medium such as an IC card satisfies the room entry restriction condition set in advance. Allow entry into specific areas, such as meeting rooms. Classification level information is information that represents the security level given to each person. The entry restriction condition is represented by a mode indicating a security level that permits entry, and the mode can be set for each specific section and for each time zone. Therefore, only the person who brings the IC card in which the security level corresponding to the security level indicated by the mode is stored can enter the room. [0004] In the security system having an entrance route regulation function described in Patent Document 2, the intruder is registered in the personal registration data by the verification device provided at the entrance of each security area such as a conference room, laboratory or information management room. Check if it is The collation device collates using a fingerprint, a retina or key input information. Only when the registered intruder travels along the entry route set in advance for each individual and group, the door of each entry / exit is unlocked and entry into each security area is permitted. [0005] In the conference environment control system described in Patent Document 3, when the access right to the document used during the meeting and the access right to the task used during the meeting are limited, the shielding apparatus is set up or the door is opened. By locking or switching the audio output device from the speaker to the headphone or the like, the document 09-05-2019 2 can not be seen from the outside, or the meeting space can not be entered by anyone other than the person concerned, the person other than the person concerned Will not be heard. [0006] JP-A-1-163890 JP-A-2000-331272 JP-A-2006-106890 [0007] However, the above-mentioned prior art restricts the entry of the room entry person who is not registered to participate in the conference, or when entering the entry room, the entry person can not hear the voice It is. When admission is permitted, there is a problem that the person who was holding the conference can not hear the voice and the opening is interrupted. [0008] An object of the present invention is to provide an audio output device and an audio output capable of preventing leakage of information to the third party who has entered the room without interrupting the conference even if the third party enters the conference room etc. It is to provide a method. [0009] According to the present invention, of the sound output means for outputting directional sound and the identification information for identifying each person, attendance to a conference held in a room where the sound output means is installed is permitted. Storage means for storing identification information of a person as permission identification information, acquisition means for acquiring identification information of a person entering the room, and identification information acquired by the acquisition means stored in the storage means Judgment means for judging whether or not any of the permission identification information matches, and permission identification information in which the identification information obtained by the acquisition means is stored in the storage means. And a control means for controlling so as to limit the output of the sound by the sound output means when it does not match any of the above. [0010] 09-05-2019 3 Further, according to the present invention, an acquiring step of acquiring identification information of a person acquires an identification step of acquiring identification information of a person entering the room, and identification information for identifying each person acquired by the identification step. Among the information, it is stored in storage means for storing, as permission identification information, identification information of a person who is permitted to attend a meeting held in a room where sound output means for outputting directional sound is installed. A determination step of determining whether or not any of the permission identification information matches, and permission identification information in which the identification information acquired in the acquisition step is stored in the storage means. And a control step of controlling so as to limit the output of the sound by the sound output means when it does not match any of the above. [0011] According to the present invention, the sound output means outputs directional sound, and the storage means is held in the room where the sound output means is installed among the identification information for identifying each person. Identification information of a person who is permitted to attend the meeting is stored as permission identification information. The acquisition means acquires identification information of a person entering the room, and the determination means determines whether the identification information acquired by the acquisition means matches any of the permission identification information stored in the storage means. Is determined. Then, when the determination result determined by the determination means indicates that the identification information acquired by the acquisition means does not match any of the permission identification information stored in the storage means by the control means, Control to limit the sound output by the sound output means. Therefore, even if the third party enters the meeting room etc., leakage of information due to the sound to the third party who has entered the room without interrupting the meeting It can be prevented. [0012] Further, according to the present invention, in the acquisition step, an acquisition unit for acquiring identification information of a person acquires identification information of a person 09-05-2019 4 who enters the room. In the determination step, the identification information acquired in the acquisition step is a conference held in a room provided with sound output means for outputting directional sound among the identification information for identifying each person It is determined whether or not any of the permission identification information stored in the storage means, which stores the identification information of the person who is permitted to attend, as the permission identification information. Then, in the control step, when the determination result determined in the determination step indicates that the identification information acquired in the acquisition step does not match any of the permission identification information stored in the storage unit, Control is performed to limit the output of the sound by the sound output means. [0013] Therefore, by applying the sound output method according to the present invention, even if a third party enters a meeting room etc., leakage of information due to sound to the third party who has entered the room is prevented without interrupting the conference. Can. [0014] BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the structure of the meeting room reservation system 1 which is one form of embodiment of this invention. It is a figure which shows the output range of the sound of the speaker. FIG. 6 is a diagram showing an example of a configuration of employee information 61 stored by an employee information recording unit 13. 5 is a diagram showing an example of a configuration of meeting room reservation information 62 stored by the meeting room reservation unit 11. FIG. FIG. 6 is a diagram showing an example of a configuration of display data restriction information 63 stored by a monitor control unit 34. It is a figure which shows an example of the meeting room reservation condition confirmation screen 71 displayed by the meeting room reservation part 11. FIG. FIG. 7 is a diagram showing an example of a meeting room reservation input screen 72 displayed by the meeting room reservation unit 11; FIG. 6 is a diagram showing an example of a conference room reservation registration completion screen 73 displayed by the conference room reservation unit 11; It is a figure which shows an example of the meeting room reservation 09-05-2019 5 non-registration confirmation screen 74 displayed by the meeting room reservation part 11. FIG. FIG. 6 is a diagram showing an example of a control setting screen 75 displayed by a monitor control unit 34. FIG. 6 is a diagram showing an example of a warning screen 76 displayed by the monitor control unit 34. FIG. 6 is a diagram showing an example of a display level setting screen 77 displayed by the conference room reservation unit 11; It is a flowchart which shows the process sequence of the meeting room management process performed by a user and the meeting room reservation part 11. FIG. 5 is a flowchart showing a processing procedure of reservation confirmation processing executed by the meeting room reservation unit 11; 5 is a flowchart showing a processing procedure of a conference room reservation process executed by the conference room reservation unit 11; 5 is a flowchart showing a processing procedure of a conference room entry and exit process executed by the entry and exit management unit 12 and the entry and exit monitoring unit 21. 5 is a flowchart showing a processing procedure of control setting processing executed by a monitor control unit 34; 5 is a flowchart showing a processing procedure of first monitor control processing executed by a monitor control unit 34; FIG. 16 is a flowchart showing a processing procedure of second monitor control processing executed by the monitor control unit 34. FIG. It is a flowchart which shows the process sequence of the 3rd monitor control processing performed by the monitor control part 34. FIG. [0015] FIG. 1 is a block diagram showing a configuration of a meeting room reservation system 1 according to an embodiment of the present invention. The sound output method according to the present invention is processed by the conference room reservation system 1 which is a sound output device. The meeting room reservation system 1 includes a server 10, a meeting room 20, a monitor 30, a terminal 40, and a network 50. [0016] The terminal 40 is configured by, for example, a personal computer and is connected to the network 50. The terminal 40 displays information received from the server 10, for example, information such as an operation screen, and transmits information input in response to the operation screen to the server 10. By operating the terminal 40, the user can register the schedule of the meeting and the prospective participant in the reservation management system managed by the server 10. The network 50 is a communication line that enables transmission and reception of information between devices connected to the network 50, and is configured by, for example, an intranet or the Internet. 09-05-2019 6 [0017] The server 10 includes a meeting room reservation unit 11, an entry and exit management unit 12, an employee information recording unit 13, and a meeting monitoring unit 14, and is connected to the network 50. The server 10 is, for example, a commonly used computer configured of a central processing unit (hereinafter referred to as CPU ) not shown and a storage unit not shown. The storage device is constituted by, for example, a semiconductor memory and a hard disk drive, and stores a control program for controlling the server 10 and information necessary for controlling the server 10. [0018] The server 10 executes the control program stored in the storage device by the CPU to realize the functions of the conference room reservation unit 11, the entry and exit management unit 12, the employee information recording unit 13, and the conference monitoring unit 14, and performs reservation management. Manage the system The management of the reservation management system is, for example, management of reservation of the meeting room 20, management of entry and exit of people to the meeting room 20, and management of locking and unlocking of the door of the meeting room 20. [0019] The meeting room reservation unit 11 displays a screen for making a reservation of the meeting room on the terminal 40, and the date and time when the user enters the meeting on the screen displayed on the terminal 40, the meeting start time and end time, and Information such as a conference participant is accepted for each conference room, and stored in the storage device as conference room reservation information. The entry and exit management unit 12 is registered based on the conference room reservation information stored in the conference room reservation unit 11 that persons entering and leaving each conference room are registered in the conference held in the conference room Determine if it is a person. Furthermore, based on the information received from the entry and exit monitoring unit 21, the employee code of the person who has entered each meeting room is stored in the storage device as entry employee information. The employee code, which is identification information, is identification information for identifying an employee. 09-05-2019 7 [0020] The employee information recording unit 13 stores information such as the employee code and employee name of the employee, and biometric information of each employee when using biometrics as employee information in the storage device. The employee name is the name of the employee. The biological information is information representing biological characteristics of each person, and is, for example, information such as a fingerprint, a retina or a face. [0021] The meeting monitoring unit 14 checks the meeting room reservation information and the entry employee information, and controls the display on the display unit 31. The entry and exit management unit 12 determines whether or not participation in a held conference is registered, and controls locking and unlocking of the conference room and output of a speaker according to the determination result. [0022] The meeting room 20 is a room for people to gather and exchange information, such as a meeting room, a reception room, a classroom or an auditorium, and may be a partitioned space. In each conference room 20, an entrance / exit monitoring unit 21 and a locking unit 22 are fixed in the vicinity of a door provided at each entrance and exit, and a monitor 30 and a speaker 36 are installed. [0023] The room entry / exit monitoring unit 21 which is an acquisition means is constituted by, for example, a card reader for reading an employee ID card such as an employee card in which an employee code is magnetically recorded, or an apparatus for performing biometric authentication such as fingerprint authentication Be done. The entry and exit monitoring unit 21 acquires identification information of a person who enters and leaves the room, and sends the identification information to the entry and exit management unit 12 including information indicating whether the user has entered or left the room. The identification information is, for 09-05-2019 8 example, an employee code when using a card reader, is biometric information when performing biometric authentication, and is an employee code and biometric information when using in combination. [0024] If the identification information received from the entry and exit monitoring unit 21 is the employee code of the person who entered the room, the entry and exit management unit 12 which is the determination means directly registers in the entry employee information and the identification information received from the entry and exit monitoring unit 21 If is the employee code of the person who left the room, delete the employee code from the entry employee information. If the identification information received from the entry / exit monitoring unit 21 is biometric information, the employee code corresponding to the biometric information is searched from the employee information stored by the employee information recording unit 13. If the identification information received from the entry and exit monitoring unit 21 is the biometric information of the person who entered the room, the searched employee code is registered in the entry employee information, and the identification information received from the entry and exit monitoring unit 21 is the biometric information of the person who left the room And delete the retrieved employee code from the entry employee information. [0025] The lock unit 22 locks and unlocks a key provided on the door of the conference room 20. When the entry and exit monitoring unit 21 receives an unlocking instruction from the entry and exit management unit 12, the entry and exit monitoring unit 21 instructs the locking unit 22 to unlock. The locking unit 22 is normally in a locked state, and when it receives a lock release instruction from the entry and exit monitoring unit 21, it unlocks to enable entry and exit and locks when a person enters and leaves the room. [0026] The monitor 30 includes, for example, a display unit 31, an operation unit 32, a CPU (not shown), and a storage device (not shown) such as a semiconductor memory and a hard disk drive, and is connected to the network 50. The monitor 30 is used to make a video conference in the conference room 20 or to display materials. The storage device stores an operating system 09-05-2019 9 (hereinafter referred to as "OS"), an application program (hereinafter simply referred to as "program"), a control program for controlling the monitor 30, and information necessary for control. The server 10 implements the functions of the monitor monitoring unit 33, the monitor control unit 34, and the control unit 35 by causing the CPU of the monitor 30 to execute the control program stored in the storage device of the monitor 30. [0027] The display unit 31 is formed of, for example, a liquid crystal display, and when installed in a large conference room, a large liquid crystal display is used. The display unit 31 displays the information instructed from the monitor control unit 34. Hereinafter, the display unit 31 is also simply referred to as a "monitor". The operation unit 32 is configured of, for example, a pointing device such as a mouse, and a character input device such as a keyboard, and may be a remote controller (hereinafter referred to as "remote control") or a touch sensor. . The operation unit 32 sends the input information to the monitor control unit 34. [0028] The monitor monitoring unit 33 monitors whether information is displayed on the display unit 31 and whether sound is output from the speaker 36. When the monitor control unit 34, which is the control means, receives the unlock confirmation signal from the room entry / exit management unit 12, it controls the locking and unlocking of the door or the restriction of the sound output from the speaker according to control setting information described later. Do. The unlock confirmation signal is a signal for notifying the monitor control unit 34 that the employee who is about to enter the room is an employee who is not registered in the meeting room reservation information 62 and it is necessary to prevent the leakage of the information. . The monitor control unit 34 instructs the entry and exit management unit 12 to control locking and unlocking of the door, and controls the control unit 35 to limit the output of the sound from the speaker. [0029] When instructed by the monitor control unit 34 to limit the output of the sound from the speaker, the control unit 35 is configured so that the third party who has entered the room can not hear the sound from the speaker 36. Control the output. The speaker 36, which is a sound 09-05-2019 10 output unit, is a speaker that has directivity, can control the direction in which sound is output by outputting an ultrasonic wave, and can control an output region in which the sound propagates. The speaker 36 controls the pointing direction for outputting the sound based on the instruction from the control unit 35. [0030] FIG. 2 is a view showing the sound output area of the speaker 36. As shown in FIG. The speakers 36a and 36b shown in FIG. 2 output sounds to the output areas 25a and 25b, respectively. A door 23 is provided in the meeting room surrounded by the wall 24. In the example shown in FIG. 2, the speaker 36 a is installed on the left side facing the display unit 31, and the speaker 36 b is installed on the right side facing the display unit 31. The door 23 is provided on the right side toward the display unit 31. In FIG. 2A, the door 25 is closed, and the speakers 36a and 36b output sound to the output areas 25a and 25b. [0031] In FIG. 2B, by stopping the output of the speaker 36b that outputs the sound to the output area 25b including the vicinity of the door 23, the third party who opened the door 23 and entered the room hears the sound from the speakers 36a and 36b. It is a figure which shows the state made to avoid. In FIG. 2C, the door 23 is controlled by using, for example, an ultrasonic wave so that the sound output from the speaker 36b that outputs the sound to the output area 25b including the vicinity of the door 23 is output to the output area 25c. Is a diagram showing a state in which the third party who has opened and entered does not hear the sound from the speakers 36a and 36b. In the area of the sound output from the speaker 36b, the directivity in the output area 25c is narrower than that in the output area 25b, and the angle centered on the speaker 36b is smaller and narrower. [0032] FIG. 3 is a diagram showing an example of the configuration of the employee information 61 stored by the employee information recording unit 13. As shown in FIG. The employee information 61 includes, for example, items of employee code , employee name and level of job title , and items such as the employee name are associated with each employee code. The job title level indicates the height of job titles given to employees, and the higher the 09-05-2019 11 job title, the larger the number. The employee information 61 is registered, for example, when an employee joins a company, and is updated regularly or if necessary. The employee information 61 shown in FIG. 3 indicates that the employee code "0001" is assigned to the employee name "Taro Hayakawa", the job title level is "1", and the employee code "0002" is the employee name "Sato It is shown that Jiro is assigned, the job title level is 3 , the employee code 0003 is assigned to the employee name Suzuki Suzuki , and the job title level is 2 . [0033] FIG. 4 is a diagram showing an example of the configuration of the meeting room reservation information 62 stored by the meeting room reservation unit 11. The meeting room reservation information 62 includes, for example, items of date , time and participant list , and these items are associated with each meeting room. "Date" is the date on which the meeting is scheduled to be held, "time" is the start time and end time on which the meeting is scheduled to be held, and "participant list" which is permission identification information Is a list of employee codes for employees who will attend the meeting. [0034] In the meeting room reservation information 62 shown in FIG. 4, the time of the day "09.00-10: 00" of the date "2007.04.01" is "about the meeting room 1", Participant list "Participant list" in the time zone of "10:00-14:00" at the time of the meeting where employees of the participant list "0010, 0011" participate and the date "10:00-14:00" of the date "2007.04.01" Conferences in which employees of 1,000, 000, 2,000 are participating are registered. [0035] FIG. 5 is a diagram showing an example of the configuration of the display data restriction information 63 stored by the monitor control unit 34. As shown in FIG. The display data restriction information 63 includes, for example, items of display data and display level , and a display level is stored for each display data. Display data is data representing a document including a document and a drawing used in a conference. The display level represents a level at which viewing of display data is permitted, and the lowest job level among job levels at which viewing of the display data is permitted is set. Therefore, employees with a job title level lower than the display level can not view the display data. The meeting room 09-05-2019 12 reservation unit 11 is a storage unit. [0036] In the display data restriction information 63 shown in FIG. 5, the display level "3" is shown for the display data "management material. Ppt", the display level "1" is shown for the display data "*. Jpg", and the display data Display level "2" is shown for "planning materials .doc". [0037] FIG. 6 is a diagram showing an example of the meeting room reservation status confirmation screen 71 displayed by the meeting room reservation unit 11. As shown in FIG. The meeting room reservation status confirmation screen 71 is a screen for confirming the reservation state of the meeting room and making a reservation for the meeting room, and is displayed on the terminal 40 by the meeting room reservation unit 11. A title "reservation status" is displayed on the meeting room reservation status confirmation screen 71, and a date input column 710, a reservation confirmation button 711, a date display column 712, a reservation status column 713, and a close button 714 are provided. [0038] The date input field 710 is an input field for entering the date of reservation confirmation or reservation of the conference room, and is noted as "date". The reservation confirmation button 711 is an operation button for displaying the reservation status of the input date in the date input field 710. The operation of the operation button can be performed, for example, by moving a pointer displayed on the display screen to the position of the operation button by the mouse and left-clicking the mouse. The operation of the operation button is the same for the other operation buttons described below. [0039] The date display column 712 shows the date of the reservation status displayed in the reservation status column 713, and a comment "reserved <->" indicating that the range of the 09-05-2019 13 arrow is reserved is shown. Immediately after the meeting room reservation status confirmation screen 71 is opened, the date display column 712 displays the date when the meeting room reservation status confirmation screen 71 is opened. [0040] The reservation status column 713 is a display column indicating the reservation status for each facility name on the date shown in the date display column 712, and a reservation button 715 is provided for each facility name. The facility name is room identification information for identifying a room such as a meeting room, and is, for example, the name of the meeting room. When one of the reservation buttons 715 provided for each facility name is operated, a conference room reservation input screen 72 for reserving a conference room of the facility name associated with the operated reservation button 715 Can be displayed. The close button 714 is an operation button for closing the meeting room reservation status confirmation screen 71. [0041] In the meeting room reservation status confirmation screen 71 shown in FIG. 6, 1 on the 4th of 2010 year is input in the date input column 710, and April 1, 2010 is displayed in the date display column 712. It is shown. In the reservation status column 713, the time from "9:00" to "17:00" is shown every hour, and for the conference room 1, time from "9:00" to "10:00" The conference room 2 is reserved for one hour, and the conference room 2 is reserved for one hour from the time "10:00" to the time "11:00", and for the conference room 3, the time "9:00" to the time "15: Reserved for 6 hours until 00 ". [0042] FIG. 7 is a view showing an example of the conference room reservation input screen 72 displayed by the conference room reservation unit 11. The meeting room reservation input screen 72 is a screen for making a reservation of a meeting room, and is displayed on the terminal 40 by the meeting room reservation unit 11. In the meeting room reservation input screen 72, a facility name display column 720, a date display column 721, a time zone input column 722, a participant list display column 723, an additional participation employee code input column 724, an add button 725, a meeting room reservation registration button 726 and a 09-05-2019 14 close button 727 are provided. [0043] The facility name display column 720 is a display column for displaying a facility name to be reserved, is appended with facility name , and is the same facility name as the facility name corresponding to the reservation button 715 operated on the meeting room reservation status confirmation screen 71 The first name is displayed. The date display field 721 is a display field indicating the date of making a reservation for the conference room, is appended with date , and is displayed on the date display field 712 of the conference room reservation status confirmation screen 71 The same date is displayed. The time zone input field 722 is an input field for entering a time zone scheduled to conduct a meeting, which is added with time , and is used to enter a start time and an end time. [0044] The Participant List Display Column 723 is a display column that displays a list of employee codes and employee names of employees scheduled to participate in the meeting, and is appended with Participant List , and the employee codes are associated with the employee names. Is displayed. If the number of participants is greater than the number that can be displayed in the participant list display column 723, by operating the scroll button 728 in the participant list display column 723, the invisible employee code and the employee name are displayed. It can be displayed. [0045] The participation additional employee code input column 724 is a conference room shown in the facility name display column 720, and for a meeting scheduled to be held in the time zone shown in the date and time zone input column 722 shown in the date display column 721. This is an input field for inputting the employee code of the employee who is to participate, and is noted as "participant additional employee code". [0046] The add button 725 is an operation button for adding the employee code input in the additional 09-05-2019 15 participation employee code input field 724 to the participant list display field 723. When the add button 725 is operated, the meeting room reservation unit 11 stores the employee name associated with the employee code input in the participation additional employee code input field 724 with the employee information 61 stored by the employee information recording unit 13. The search is performed from among the employee names shown in the table, and the searched employee name is added to and displayed in the participant list display field 723 in association with the employee code input in the additional participation employee code entry field 724. [0047] The conference room reservation registration button 726 is an operation button for registering the information displayed on the conference room reservation input screen 72 and the input information in the conference room reservation information 62. When the conference room reservation registration button 726 is operated, the conference room reservation unit 11 displays the information displayed on the conference room reservation input screen 72 and the input information, specifically, the facility name displayed in the facility name display column 720 In the conference room reservation information 62, the date displayed in the date display column 721, the start time and end time input in the time zone input column 722, and the employee code displayed in the participant list display column 723 are registered. The close button 727 is an operation button for closing the meeting room reservation input screen 72. [0048] In the conference room reservation input screen 72 shown in FIG. 7, meeting room 1 in the facility name display column 720, April 1, 2010 in the date display column 721, and 10 in the time zone input column 722 It is indicated that "00" minutes to "12" minutes "00" minutes. In the participant list display column 723, the employee name "Satoichiro" is shown corresponding to the employee code "0001", and the employee name "Jiro Suzuki" is shown corresponding to the employee code "0002". In the code input field 724, a participation additional employee code "0003" is input. [0049] 09-05-2019 16 FIG. 8 is a diagram showing an example of the conference room reservation registration completion screen 73 displayed by the conference room reservation unit 11. The conference room reservation registration completion screen 73 is a screen indicating that the information displayed on the conference room reservation input screen 72 and the input information have been registered in the conference room reservation information 62. Is displayed. In the meeting room reservation registration completion screen 73, a comment column 731 and an Ok button 732 are provided. [0050] Comment box 731 "The reservation was accepted. The comment is displayed, indicating that the information input on the conference room reservation input screen 72 has been registered in the conference room reservation information 62. When the conference room reservation registration button 726 is operated on the conference room reservation input screen 72, the conference room reservation unit 11 already displays the meeting schedule indicated by the information displayed on the conference room reservation input screen 72 and the input information. When the information does not overlap with the reservation of the conference registered in the room reservation information 62, the information displayed on the meeting room reservation input screen 72 and the input information are registered in the meeting room reservation information 62 by the meeting room reservation unit 11, A meeting room reservation registration completion screen 73 is displayed. [0051] The Ok button 732 is an operation button for indicating that the user has confirmed the comment displayed in the comment column 731. When the Ok button 732 is operated, the information registered in the conference room reservation information 62 is reflected. The meeting room reservation status confirmation screen 71 is displayed. [0052] FIG. 9 is a diagram showing an example of the meeting room reservation non-registration confirmation screen 74 displayed by the meeting room reservation unit 11. As shown in FIG. The conference room reservation non-registration confirmation screen 74 is a screen indicating 09-05-2019 17 that the information displayed on the conference room reservation input screen 72 and the input information are not registered in the conference room reservation information 62, and the terminal by the conference room reservation unit 11 Displayed at 40. In the meeting room reservation non-registration confirmation screen 74, a comment column 741 and an Ok button 742 are provided. [0053] In the comment field 741, "The time zone has already been reserved. Please enter the time again after confirmation. The comment is displayed, indicating that the information displayed on the conference room reservation input screen 72 and the input information are not registered in the conference room reservation information 62. When the conference room reservation registration button 726 is operated on the conference room reservation input screen 72, the conference room reservation unit 11 already displays the meeting schedule indicated by the information displayed on the conference room reservation input screen 72 and the input information. If the information displayed on the conference room reservation input screen 72 and the input information are not registered in the conference room reservation information 62 when overlapping with the conference reservation registered in the room reservation information 62, the conference room reservation An unregistered confirmation screen 74 is displayed. [0054] The Ok button 742 is an operation button for indicating that the user has confirmed the comment displayed in the comment column 741. When the Ok button 742 is operated, the screen returns to the conference room reservation input screen 72. [0055] FIG. 10 is a view showing an example of the control setting screen 75 displayed by the monitor control unit 34. As shown in FIG. The control setting screen 75 is a control method for preventing leakage of information such as display data displayed on the display unit 31 and sound (hereinafter also referred to as voice ) output from the speaker 36 to a third party. This is a screen for setting, and is displayed on the display unit 31. The control setting screen 75 displays a title "control method for preventing information leakage" and is provided with an audio mute setting field 751, a right 09-05-2019 18 side output setting field 752, a left side output setting field 753, a locking setting field 754 and a close button 755. There is. [0056] A circle mark is provided on the left side of each of the voice muffling setting section 751, the right side output setting section 752, the left side output setting section 753, and the locking setting section 754, and the voice muffling setting section 751 is Is displayed, the right output setting column 752 is displayed as "output audio only on the right side", and the left output setting column 753 is displayed as "output audio only on the left side", The lock setting column 754 is displayed as lock the room . The user can select only one of the circle marks of the voice muffling setting field 751, the right side output setting field 752, the left side output setting field 753, and the locking setting field 754 with a mouse or the like. The circled circles are black circles, and the other circles are white circles. The close button 755 is an operation button for closing the control setting screen 75. In the control setting screen 75 shown in FIG. 10, the circle mark of the sound muffling setting column 751 is a black circle, and it is shown that the mute sound setting is made in the sound muffling setting column 751. [0057] When the close button 755 is operated, the monitor control unit 34 stores the information set in the control setting screen 75 in the storage device as control setting information. The monitor control unit 34 stores "mute" as the setting method of the control setting information if the circle mark of the sound mute setting field 751 is a black circle, and the circle mark of the right side output setting field 752 is a black circle If the left side of the left output setting column 753 is a black circle, the right side is stored as the setting method of the control setting information, and the lock setting column 754 is stored. If the circle mark is a black circle, "lock" is stored as a setting method of control setting information. [0058] FIG. 11 is a diagram showing an example of the warning screen 76 displayed by the monitor control unit 34. As shown in FIG. The warning screen 76 is a screen displayed on the display unit 31 when the employee code acquired by the entry / exit monitoring unit 21 is not registered in the meeting room reservation information 62. In the warning screen 76, a comment field 761, an 09-05-2019 19 Ok button 762 and an NG button 763 are provided. [0059] In the comment field 761, A person who is not registered for the warning opening is going to enter the room. A comment is displayed, and warns that a person who is not registered in the staff reservation information 62 is trying to enter the room. The Ok button 762 is an operation button for instructing to continue the process of determining whether to allow a person who is not registered to enter the room and whether to restrict the sound output, and the NG button 763 , It is an operation button for instructing not to allow entry of a person who is not registered. [0060] FIG. 12 is a diagram showing an example of the display level setting screen 77 displayed by the conference room reservation unit 11. The display level setting screen 77 is a screen for setting a display level of display data used in a conference, for example, data representing a document used in the conference and a document such as a drawing, and displayed on the terminal 40 by the conference room reservation unit 11 Be done. In the display level setting screen 77, a title "display data restriction list" is displayed, and a display data list 770, a display data addition / deletion column 774, and a close button 779 are provided. [0061] The display data list 770 is provided with a display data field 771 appended with "display data", a display level field 772 appended with "display level", and a scroll button 773. The display data column 771 is a list of display data identification information for identifying display data displayed on the display unit 31, for example, a file name of the display data. The display level column 772 is a list in which the display level of each display data is associated with a file name. The scroll button 773 is an operation button for scrolling the display data and the display level to be displayed in order to display the display data and the display level which are not displayed in the display data list 770. [0062] 09-05-2019 20 The display data addition / deletion column 774 is an operation column for performing an operation of adding display data and a display level to the display data list 770, or deleting display data and a display level registered in the display data list 770. . In the display data addition and deletion column 774, a display data input column 775, a display level input column 776, an add button 777, and a deletion button 778 are provided. A display data input field 775 is an input field for inputting a file name of display data to be added, and a display level input field 776 is an input field for inputting a display level of display data to be added. [0063] The add button 777 is an operation button for instructing the display data list 770 to add the file name input to the display data input field 775 and the display level input to the display level input field 776. The delete button 778 is an operation button for instructing deletion of the file name and display level of the display data of the row selected in the display data input field 775 from the display data list 770. When the add button 777 is operated, the meeting room reservation unit 11 causes the display data list 770 to display the file name of the display data input to the display data input column 775 and the display level input to the display level input column 776. to add. When the delete button 778 is operated, the file name and display level of the display data of the row selected in the display data input field 775 are deleted from the display data list 770. [0064] The close button 779 is an operation button for registering the display data and the display level included in the display level setting screen 77 in the display data restriction information 63 and instructing the display level setting screen 77 to be closed. When the close button 779 is operated, the meeting room reservation unit 11 registers the display data and the display level included in the display level setting screen 77 in the display data restriction information 63 and closes the display level setting screen 77. The conference room reservation unit 11 sends the display data registered on the display level setting screen 77 and the display data restriction information 63 reflecting the display level to the monitor control unit 34 of each conference room 20, and stores the storage devices of the respective monitors 30. Remember. [0065] 09-05-2019 21 In the display level setting screen 77 shown in FIG. 12, in the display data column 771, the file names are listed in order from the top, "management data. Ppt", "*. Jpg" and "plan data. Doc" A column 772 shows the display levels of the display data as 3 , 1 and 2 in order from the top. In the display data addition / deletion column 774 shown in FIG. 12, the display data input column 775 shows the file name * .bmp , and the display level input column 776 shows the display level 1 . [0066] FIG. 13 is a flowchart showing the procedure of the conference room management process executed by the user and the conference room reservation unit 11. When the meeting room reservation system 1 is powered on and becomes operable, the process proceeds to step A1. [0067] In step A1, the user determines whether to reserve a conference room. If it is desired to reserve a conference room, the process proceeds to step A2, and if it is not desirable to reserve a conference room, the conference room management process is ended. In step A2, a meeting room reservation status confirmation screen 71 is displayed. Specifically, for example, when the user selects the reservation menu of the conference room from the main menu displayed on the terminal 40 by the server 10, the conference room reservation unit 11 displays the conference room reservation status confirmation screen 71. It is displayed on the terminal 40. [0068] In step A3, the user determines whether to confirm the reservation. If the reservation confirmation is to be performed, the process proceeds to step A7. If the reservation confirmation is not performed, the process proceeds to step A4. In step A4, the user determines whether to reserve a meeting room. To reserve a meeting room, press the reservation button 715 associated with the meeting room you want to reserve among the reservation buttons 715 on the meeting room reservation status confirmation screen 71, and proceed to step A8. Proceed to step A5. In step A5, the user determines whether to end the conference room reservation. If the conference room reservation is to be ended, the process proceeds to step A6. If the conference room 09-05-2019 22 reservation is not to be ended, the process returns to step A2. [0069] In step A7, after the reservation confirmation process is performed, the process returns to step A2. In step A8, after executing the conference room reservation process, the process returns to step A2. In step A6, the user presses the close button 714. When the close button 714 is pressed, the meeting room reservation unit 11 closes the meeting room reservation status confirmation screen 71 displayed on the terminal 40, and ends the meeting room management process. [0070] FIG. 14 is a flowchart showing a processing procedure of reservation confirmation processing included in the conference room management processing. At step A7 of the flowchart shown in FIG. 13, the process moves to step B1. [0071] In step B1, the user inputs the date on which the reservation confirmation is to be made in the date input field 710 of the meeting room reservation status confirmation screen 71, and presses the reservation confirmation button 711. In step B1, the meeting room reservation unit 11 determines whether or not the reservation confirmation button 711 has been pressed. If the reservation confirmation button 711 is pressed, the process proceeds to step B3. If the reservation confirmation button 711 is not pressed, the process returns to step B2 and waits for the reservation confirmation button 711 to be pressed. In step B3, the conference room reservation unit 11 acquires from the conference room reservation information 62 the reservation status of the date input in the date input field 710, and the conference room reservation in which the acquired reservation status is reflected in the reservation status field 713. The status confirmation screen 71 is displayed, and the reservation confirmation process is ended. [0072] 09-05-2019 23 FIG. 15 is a flowchart showing the procedure of the conference room reservation process included in the conference room management process. In the process of step A8 of the flowchart shown in FIG. 13, the process moves to step C1. [0073] In step C1, the meeting room reservation unit 11 displays the meeting room reservation input screen 72 of the meeting room associated with the pressed reservation button 715 for the date displayed in the date display column 712. In step C2, the user determines whether to reserve a meeting room. If it is desired to reserve a meeting room, the process proceeds to step C3, and if it is not desired to reserve the meeting room, the process proceeds to step C7. [0074] In step C 3, the user inputs a time to make a reservation in the time zone input field 722. In step C4, the user determines whether or not all persons who are scheduled to participate in the conference have been input. If all persons who are to participate in the conference have been input, the process proceeds to step C8. If all persons who are to participate in the meeting are not input, the process proceeds to step C5. In step C5, the user inputs the employee code of the employee who is scheduled to participate in the conference in the participation additional employee code input field 724 of the conference room reservation input screen 72. [0075] In step C6, the user presses the add button 725 on the conference room reservation input screen 72. When the add button 725 is pressed, the conference room reservation unit 11 adds the additional employee code entered in the additional employee code input field 724 to the participant list in the participant list display field 723. Then, the person name corresponding to the added additional employee code, that is, the employee name is also searched from the employee information 61 stored by the employee information recording unit 13, and the searched employee name is added to the participant list and displayed. Return to C4. [0076] 09-05-2019 24 At step C7, the user presses the close button 727. When the close button 727 is pressed, the meeting room reservation unit 11 closes the meeting room reservation input screen 72 displayed on the terminal 40, and ends the meeting room reservation process. In step C8, the user presses the conference room reservation registration button 726 on the conference room reservation input screen 72. [0077] In step C9, the meeting room reservation unit 11 determines whether the existing meeting room reservation overlaps. In the conference room displayed in the facility name display column 720 of the conference room reservation input screen 72, the date and time indicated by the date display column 721 and the time zone inputted in the time zone input column 722 are reservations indicated by the conference room reservation information 62 If it is determined that the existing meeting room reservation is overlapped, the process proceeds to step C12, and the date display area 721 is a meeting room displayed in the facility name display area 720 of the meeting room reservation input screen 72. If the time zone inputted in the date and time and time zone input column 722 indicating does not overlap with the reservation indicated by the meeting room reservation information 62, it is judged that the existing meeting room reservation does not overlap, and step C10 move on. [0078] In step C10, the meeting room reservation unit 11 registers the input information in the meeting room reservation information 62. Specifically, the conference room reservation unit 11 uses the conference room reservation information 62 to display the time indicated by the date display field 721 in the conference room displayed in the facility name display field 720 of the conference room reservation input screen 72. The time zone inputted in the band input field 722 is registered. [0079] In step C11, the conference room reservation unit 11 displays the conference room reservation registration completion screen 73 on the terminal 40, and closes the conference room reservation registration completion screen 73 when the Ok button 732 of the conference room 09-05-2019 25 reservation registration completion screen 73 is pressed. And complete the conference room reservation process. In step C12, the meeting room reservation unit 11 displays the meeting room reservation non-registration confirmation screen 74, and when the Ok button 742 of the meeting room reservation non-registration confirmation screen 74 is pressed, the meeting room reservation non-registration confirmation screen 74 is closed. Return to step C1. [0080] FIG. 16 is a flowchart showing the procedure of the conference room entry / exit process performed by the entry / exit management unit 12 and the entry / exit monitoring unit 21. The conference room entry and exit process shows the procedure and process when the user enters and leaves the conference room. When the meeting room reservation system 1 is powered on and becomes operable, the process proceeds to step D1. The door 23 of the conference room 20 is basically locked or locked. Although it is possible for an employee to enter the meeting room 20, a person who is not an employee can not enter the room. The speaker 36 and the locking unit 22 are controlled so that information handled in the conference room 20 is not leaked to a person who is not an employee but is not planning to participate in the conference. [0081] In step D1, the user determines whether he / she wants to enter the meeting room. If it is desired to enter the meeting room, the process proceeds to step D2, and if it is not desired to enter the meeting room, the process for entering and leaving the meeting room is ended. In step D2 which is an acquisition step, the user causes the entry / exit monitoring unit 21 of the meeting room that the user wishes to enter to read the employee ID card. In step D3, the entry and exit monitoring unit 21 reads the employee code from the employee ID card, and transmits the read employee code to the entry and exit management unit 12 via the network 50. In step D4, upon receipt of the employee code, the room entry / exit management unit 12 collates the received employee code with the employee information 61 stored by the employee information recording unit 13. [0082] In step D5, it is determined whether the received employee code is registered. The room entry / exit management unit 12 determines that the received employee code is registered if the 09-05-2019 26 employee information 61 stored by the employee information recording unit 13 has an employee code that matches the received employee code as a result of collation. Go to step D6. As a result of the collation, when the employee code corresponding to the received employee code is not in the employee information 61 stored by the employee information recording unit 13, it is determined that the received employee code is not registered, and the conference room entering and leaving process is ended. Do. [0083] In step D6, the room entry / exit management unit 12 collates the received employee code with the meeting room reservation information 62 stored by the meeting room reservation unit 11. In step D7, it is determined whether the received employee code is registered in the meeting room reservation information 62 at the current time. As a result of checking, if there is an employee code that matches the received employee code in the meeting room reservation information 62 stored by the meeting room reservation unit 11, the received employee code corresponds to the current meeting room. It determines that it is registered in the reservation information 62, and proceeds to step D8. If the employee code that matches the received employee code is not in the meeting room reservation information 62 stored by the meeting room reservation unit 11, it is determined that the received employee code is not registered in the meeting room reservation information 62 at the current time. Proceed to step D10. Steps D4 to D7 are determination steps. [0084] In step D8, the entry and exit management unit 12 transmits a signal for unlocking the door to the entry and exit monitoring unit 21 of the conference room, that is, the entry and exit monitoring unit 21 that has transmitted the received employee code. In step D9, the entry and exit monitoring unit 21 instructs the locking unit 22 to unlock the door, and the conference room entry and exit processing is ended. In step D10, the entry and exit management unit 12 transmits a release confirmation signal to the monitor control unit 34. When the entry / exit management unit 12 transmits the cancellation confirmation signal to the monitor control unit 34, the position level of the person of the received employee code is read from the employee information 61, and the position level information indicating the read position level is cancellation confirmation signal Send along with [0085] 09-05-2019 27 In step D11, the room entry / exit management unit 12 determines whether the monitor control unit 34 has sent back a release enable signal. When receiving the release enable signal transmitted from the monitor control unit 34, the entry / exit management unit 12 determines that the release enable signal is returned from the monitor control unit 34, and proceeds to step D8. When receiving the release impossible signal transmitted from the monitor control unit 34 or when a predetermined time-out time has elapsed, it is determined that the release enable signal is not returned from the monitor control unit 34, and the conference room entering and leaving process is ended. [0086] FIG. 17 is a flowchart showing the procedure of the control setting process performed by the user and the monitor control unit 34. For example, when the setting button provided on the remote control is operated or the setting icon displayed on the display unit 31 is clicked by the mouse or the keyboard, the process moves to step E1. [0087] In step E1, the monitor control unit 34 displays the control setting screen 75 on the display unit 31. In step E2, the user determines whether to end the setting. When the setting is finished, the process goes to step E7, and when the setting is not finished, the process goes to step E3. In step E3, the user determines whether or not to set mute. When setting to mute, the process proceeds to step E8, and when not set to mute, the process proceeds to step E3. [0088] In step E4, the user determines whether or not to set "output only on the right side". If "output only on the right side" is set, the process proceeds to step E10, and if "output only on the right side" is not set, the process proceeds to step E5. For example, when the door of the meeting room is on the left side toward the display unit 31, if setting is made so that the sound is output only from the right side at the time of setting, a third party unrelated to the meeting is unexpectedly left side. Even if the user enters the meeting room from a certain door, it is possible to prevent a third party from hearing the sound output from the speaker 36. In step E5, the user determines whether to set "output only on the left side". When "output only on the left side" is set, the 09-05-2019 28 process proceeds to step E12. When "output only on the left side" is not set, the process proceeds to step E6. In step E6, the user determines whether or not locking is to be set. When the lock is set, the process proceeds to step E14. When the lock is not set, the process returns to step E2. [0089] In step E7, the user operates the close button 755 of the control setting screen 75 to close the control setting screen 75, and ends the control setting process. In step E8, the user selects a circle in the audio mute setting field 751 of the control setting screen 75. At step E9, the monitor control unit 34 stores "mute" as the setting method of the control setting information, and returns to step E2. In step E10, "output only on the right side" is selected. That is, the user selects a circle in the right output setting field 752 of the control setting screen 75. At step E11, the monitor control unit 34 stores right as the setting method of the control setting information, and returns to step E2. In step E12, "output only on the left side" is selected. That is, the user selects a circle in the left output setting field 753 of the control setting screen 75. At step E13, the monitor control unit 34 stores left as the setting method of the control setting information, and returns to step E2. In step E14, "lock" is selected. That is, the user selects a circle in the lock setting field 754 of the control setting screen 75. In step E15, the monitor control unit 34 stores locking as the setting method of the control setting information, and returns to step E2. [0090] FIG. 18 is a flowchart showing the procedure of the first monitor control process performed by the monitor control unit 34. The first monitor control process performs control of sound output restriction and door unlocking. For example, when the power of the monitor 30 is turned on and becomes operable in order to conduct a conference, the process proceeds to step F1. [0091] In step F1, it is determined whether an unlock confirmation signal has been received. When the monitor control unit 34 receives the unlock confirmation signal from the entry / exit management unit 12, the monitor control unit 34 receives the post level information transmitted simultaneously, proceeds to step F2, and does not receive the unlock confirmation signal from the entry / exit management unit 12. And go to step F4. In step F2, after the second monitor 09-05-2019 29 control process is performed, the process proceeds to step F3. In step F3, after the third monitor control process is performed, the process proceeds to step F4. In step F4, it is determined whether or not to end monitor control. When the conference is over, locking becomes unnecessary, or when the power of the monitor 30 is turned off, it is determined that the monitor control is to be finished, and the first monitor control process is finished. When the conference is over, when the locking becomes unnecessary, or when the power of the monitor 30 is not cut off, it is determined that the monitor control is not finished, and the process returns to step F1. [0092] FIG. 19 is a flowchart showing the procedure of the second monitor control process included in the first monitor control process. In the process of step F2 of the flowchart shown in FIG. 18, the process moves to step G1. [0093] In step G1, the monitor control unit 34 displays the warning screen 76 on the monitor, that is, the display unit 31. In step G2, it is determined whether or not admission is permitted. When the Ok button 762 of the warning screen 76 is operated, the monitor control unit 34 determines that entry is permitted, and the process proceeds to step G3. When the NG button 763 is operated, it is determined that entry is not permitted. Return to step F1 shown in FIG. [0094] In step G3, it is determined whether data is displayed on the monitor. If display data is displayed on the display unit 31, the monitor control unit 34 determines that the data is displayed on the monitor, and proceeds to step G4. If the display data is not displayed on the display unit 31, It is determined that data is not displayed on the monitor, and the second monitor control process is ended. [0095] In step G4, it is determined whether there is any data displayed on the monitor that matches the 09-05-2019 30 item display data in the display data restriction information 63. The monitor control unit 34 sets the file name that matches the file name of the display data displayed on the monitor to the file name of the display data item of the display data restriction information 63 stored in the storage device of the monitor 30. If it exists, it is determined that there is data displayed on the monitor that matches the item "display data" in the display data restriction information 63, and the process proceeds to step G5. If the file name that matches the file name of the display data displayed on the monitor does not appear in the file name of the item "Display data" in the display data restriction information 63, the data displayed on the monitor will be displayed. It is determined that there is nothing that matches the item of display data in the data restriction information 63, and the second monitor control process is ended. [0096] In step G5, the monitor control unit 34 stores the display level of the largest value among the display levels of the matching display data as the maximum display level in the storage device of the monitor 30, and performs the second monitor control process. finish. [0097] FIG. 20 is a flowchart showing the procedure of the third monitor control process included in the first monitor control process. In the process of step F3 of the flowchart shown in FIG. 18, the process moves to step H1. [0098] In step H1, the monitor control unit 34 determines whether the "setting method" of the control setting information is "silence". If the "setting method" is "mute", the process proceeds to step H7, and if the "setting method" is not "mute", the process proceeds to step H2. In step H2, the monitor control unit 34 determines whether the setting method of the control setting information is right . If the setting method is right , the process proceeds to step H8, and if the setting method is not right , the process proceeds to step H3. In step H3, the monitor control unit 34 determines whether the setting method of the control setting information is left side . If the "setting method" is "left side", the process proceeds to step H9, and if the "setting method" is not "left side", the process proceeds to step H4. In step H4, the monitor control unit 34 determines whether the "setting method" of the control setting 09-05-2019 31 information is "locking". If the "setting method" is "locking", the process proceeds to step H5, and if the "setting method" is not "locking", the third monitor control process ends. [0099] In step H5, it is determined whether the post level of the entry person is greater than the "maximum display level". If the post level indicated by the post level information received in step F1 shown in FIG. 18 is greater than the maximum display level stored in the storage device of the monitor 30, the monitor control unit 34 is permitted to browse Then, it is determined that the post level of the entry person is greater than the "maximum display level", and the process proceeds to step H10. If the post level indicated by the post level information received in step F1 shown in FIG. 18 is not larger than the maximum display level stored in the storage device of the monitor 30, that is, if viewing is not permitted, It is determined that the job title level is not larger than the "maximum display level", and the process proceeds to step H6. In step H6, the monitor control unit 34 transmits an unlocking impossible signal to the entry / exit management unit 12, and ends the third monitor control process. The unlocking impossible signal is a signal indicating that the door 23 is not unlocked. [0100] In step H7, the monitor control unit 34 instructs the control unit 35 to stop the output of the sound from the speaker 36. When instructed by the monitor control unit 34 to stop the output of the sound from the speaker 36, the control unit 35 controls the speaker 36 to stop the output of the sound from the speaker 36, and proceeds to step H10. In step H8, the monitor control unit 34 instructs the control unit 35 to allow the sound from the speaker 36 to be heard only on the right side toward the monitor. When the control unit 35 receives an instruction from the monitor control unit 34 that the sound from the speaker 36 can be heard only on the right side toward the monitor, the control unit 35 controls the speaker 36 and the speaker 36 only on the right side toward the monitor. To make it possible to hear the sound from and go to step H10. Steps H1 to H3 and H7 to H9 are control steps. [0101] In step H9, the monitor control unit 34 instructs the control unit 35 to allow the sound from the speaker 36 to be heard only on the left side of the monitor. When the control unit 35 receives an 09-05-2019 32 instruction from the monitor control unit 34 so that the sound from the speaker 36 can be heard only on the left side toward the monitor, the control unit 35 controls the speaker 36, as shown in FIG. As shown in c), the sound from the speaker 36 can be heard only on the left side of the monitor, and the process goes to step H10. In step H10, the monitor control unit 34 transmits an unlockable signal to the entry / exit management unit 12, and ends the third monitor control process. The unlockable signal is a signal indicating that the door 23 is to be unlocked. [0102] As described above, directional sound is output by the speaker 36 and held by the meeting room reservation unit 11 in the meeting room 20 in which the speaker 36 is installed among the employee codes for identifying each person. The employee code of the person who is permitted to attend the meeting is stored as a participant list. The employee code of the person entering the conference room 20 is acquired by the entry and exit monitoring unit 21, and the employee code acquired by the entry and exit monitoring unit 21 is stored in the conference room reservation unit 11 by the entry and exit management unit 12. It is determined whether any one of the participant lists is matched. Then, the monitor control unit 34 determines that the determination result determined by the entry and exit management unit 12 matches the employee code acquired by the entry and exit monitoring unit 21 with any of the participant lists stored in the meeting room reservation unit 11 When not indicating, it controls to limit the output of the sound by the speaker 36. [0103] Therefore, even if the third party enters the conference room 20 or the like, it is possible to prevent the information leakage due to the sound to the third party who has entered the room without interrupting the conference. [0104] Furthermore, the speaker 36 is configured by a plurality of speakers 36, and the monitor control unit 34 stops the output of the sound by the speaker 36 that outputs the sound to the region of the plurality of speakers 36 where the propagation of the sound is to be restricted. Therefore, it is not necessary to change the directivity in each speaker 36, and it is not necessary to use an expensive speaker which can change the directivity direction. [0105] Furthermore, the directivity direction in which sound is output is controlled by outputting an 09-05-2019 33 ultrasonic wave by the speaker 36, and the monitor control unit 34 does not output sound to the area where the propagation of the sound is to be restricted. Because the pointing direction of the sound to be output is controlled, the region where the sound is not transmitted can be controlled more accurately. [0106] Furthermore, the entry and exit monitoring unit 21 is provided at a position close to the door for entry and exit of each conference room 20, and the area where the sound propagation should be restricted is the employee code of the person entering the conference room 20. Since the area including the position where a person enters from the door close to the position where the acquired entry and exit monitoring unit 21 is provided, the propagation of sound to the person who entered the room from the door adjacent to the entry and exit monitoring unit 21 is stopped. It is possible to prevent the leakage of information by sound to the person who entered the room. [0107] Furthermore, in step D2 of the flowchart shown in FIG. 16, the entry / exit monitoring unit 21 that acquires the employee code of the person acquires the employee code of the person who enters the meeting room 20. [0108] At steps D4 to D7 shown in FIG. 16, the employee code acquired at step D2 of the flowchart shown in FIG. 16 outputs the directional sound among the employee codes for identifying each person. Whether the employee code of the person who is permitted to attend the meeting held in the meeting room 20 in which the group is installed matches the participant list stored in the meeting room reservation unit 11 as a participant list It is determined whether or not. [0109] Then, in steps H1 to H3 and H7 to H9 shown in FIG. 20, the determination result determined in steps D4 to D7 shown in FIG. 16 corresponds to the employee code acquired in step D2 of the flowchart shown in FIG. When it is indicated that none of the participant lists stored in the conference room reservation unit 11 matches, control is performed to limit the output of the sound by the speaker 36. [0110] Therefore, by applying the sound output method according to the present invention, even if a 09-05-2019 34 third party enters a meeting room etc., leakage of information due to sound to the third party who has entered the room is prevented without interrupting the conference. Can. [0111] DESCRIPTION OF SYMBOLS 1 meeting room reservation system 10 server 11 meeting room reservation part 12 entry and exit management part 13 employee information recording part 14 meeting monitoring part 20 meeting room 21 entry and exit monitoring part 22 locking part 23 door 24 wall 25 sound output range 30 monitor 31 display Part 32 Operation part 33 Monitor monitoring part 34 Monitor control part 35 Control part 36 Sound output part 36a, 36b Speaker 40 Terminal 50 Network 61 Employee information 62 Meeting room reservation information 63 Display data restriction 71 Meeting room reservation status confirmation screen 72 Meeting room reservation Input screen 73 Meeting room reservation registration complete screen 74 Meeting room reservation non-registration confirmation screen 75 Control setting screen 76 Warning screen 77 Display level setting screen 09-05-2019 35
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