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 JPS62282307 [0001] 3. Detailed description of the invention (industrial application field) The present invention is directed to automatically direct a predetermined object to a remote movable body by using a wave beam having directivity such as light or sound wave. Automatic orientation control device. 2. Description of the Related Art Conventionally, there has been known an apparatus configuration in which a stationary device such as a display or a speaker is mounted on a rotating table and directed in any direction. Generally, such a turntable is manual, and the user can use his / her hand to turn the device directly left, right, up and down to adjust in the desired orientation. In addition, it is also considered to adjust the orientation of the device by remote control using a remote control. In such a device, the remote control transmitter is provided with keys for instructing the left, right, up and down directions, the remote control signal corresponding to the keys is decoded and the rotation means is deciphered. For example, when the "left" key of the remote control transmitter is pressed, the turntable rotates to the left, and when the "down" key is pressed, the turntable rotates downward. (Problems to be solved by the invention) In the above-mentioned manual rotation table, the user has to be at or to the side of the device for each adjustment, and the device is rotated by one's own hand. There is the inconvenience of having to In addition, although remote control is possible and remote control is possible and the user does not need to use his own hand, in order to direct the device to that according to the movement of the user, he has to work hard at each movement. It is inconvenient, and there is no way to automatically direct equipment towards a non-human object, such as the movement of a robot. The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to provide an automatic direction control device for automatically directing a predetermined object toward a remote movable body. (Means for Solving the Problems) According to the configuration of the present invention for solving the above object, there is provided an automatic orientation control device 03-05-2019 1 for automatically pointing a predetermined surface of a predetermined object toward a remote movable body, wherein A rotatably supporting support; wave beam emitting means mounted in the same direction as a predetermined surface of the object and emitting a wave beam having a certain directivity; mounted on the movable body, wave beam emitting means Retroreflecting means for reflecting the wave beam from the light toward the wave beam emitting means; disposed in proximity to the reflected beam emitting means and receiving the wave beam from the retroreflecting means into an electrical signal Wave beam receiving means for converting; Control means for determining the position of the movable body based on the electric signal obtained from the reflected beam receiving means, and generating a direction control signal for directing the object toward the direction; Direction control signal Characterized by comprising a; and driving means for the support is driven to rotate in response to. In the present invention, an object means not only a stationary device such as a display or a speaker but also any object that requires control of the orientation of a predetermined surface such as a fan or a figurine. Moreover, a movable body means movable objects, such as a person other animals and a robot. When the wave beam emitted from the wave beam emitting means on the object side whose direction is to be controlled strikes the movable body, the wave beam is reflected toward the object by the retroreflecting means attached thereto, and the wave beam is received. The light is incident on the means and converted into an electrical signal. Since this wave beam has a certain directivity, the intensity upon entering the wave beam receiving means changes with the position (direction) of the movable body. Therefore, such a change also appears in the electrical signal, and based on this, the control means can determine the position of the movable body by appropriate calculation. Then, in response to the direction control signal from the control means, the drive means rotationally drives the support, and the object is positioned when the predetermined surface of the object faces the movable body. In this way, a servo loop consisting of wave beam emitting means, reoccurring reflection means, wave beam receiving means, control means, driving means, and a support works to follow the reflexive reflection means as a mark, thereby operating the object. Control is performed such that the direction follows the position of the movable body. Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 shows a display device to which the automatic orientation control device of one embodiment of the present invention is applied. In this figure, the display 10 is a conventional CRT display, but is supported by a motordriven turntable 12 and can be rotated left and right, that is, in the directions of arrows Fa and Fb. Furthermore, on the top surface of the display 10, two light emitting elements 14.16 made of, for example, infrared light emitting diodes are disposed close to each other in the same direction as the screen 10a, and for example, at the central position between the light emitting elements 14.18. A light receiving element 18 formed of a photodiode is disposed. The light emitting elements 14.16 are alternately pulse-driven to emit pulse-form infrared rays RQa and RQb repeatedly in a time-division manner. These infrared rays RQa and RQb respectively have directivity characteristics as shown in FIG. That is, the light output is at its maximum at the 03-05-2019 2 optical axis and decreases at a constant rate as it is angularly away therefrom. Referring again to FIG. 1, a human 20 as a movable body of the present embodiment is located in front of the display 10, and a retroreflective member 22 is provided in front of the human 20, for example, a chest pocket. The retroreflecting material 22 has, for example, a configuration in which a glass sheet is embedded in a plastic sheet, and has a retroreflecting effect of returning incident light straight in the direction of the light source. Therefore, when the human 20 turns to the display 10 as shown, the infrared rays RQa and RQb from the light emitting element 14.18 enter the retroreflecting material 22, and the reflected lights RQa 'and RQb' from there emit light. It is returned to the element 14.16 and enters the light receiving element 18 where it is converted into an electrical signal corresponding to the intensity or output of the light. Then, as will be described later, the drive motor is operated by the functions of the signal processing system and the control system to rotationally drive the turntable 12 so that the screen 10 a of the display 10 faces the person 20. FIG. 2 shows a system configuration of this automatic direction control device. The light emitting element 14.16 is alternately pulse driven by the light emitting element drive circuit 24, whereby the light receiving element 18 alternately receives the pulsed infrared reflected lights RQa 'and RQb' from the retroreflecting material 22 of the movable body 20. The voltage signals E a and E b corresponding to the respective light intensities La and L b are generated timedivisionally. These voltage signals Ea and Eb are sampled by the sampling circuit 28, then converted to digital signals Da and Db by the A / D converter 28, and supplied to the position detection operation unit 30. The position detection calculation unit 30 may be configured by a digital calculation circuit or a microcomputer, and calculates the position of the movable body 20 according to the following equation based on the digital signals D a and D b. P = (Da-Db) / (Da + Db) "(1) This equation is equivalent to the following equation. P = (La-Lb) / (La + Lb) "-(2) That is, when the movable body 20 is closer to the light emitting element 14 than the light emitting element 16, the movable body seen from the display 10 in FIG. When the (human) 20 is closer to the left, the value P of the equation (1) is positive, and the absolute value thereof is larger as the movable body (human) 20 is closer to the left. Conversely, when the movable body (human) 20 is closer to the right when viewed from the display 10, the value P of the equation (1) is negative and the absolute value thereof is as far as the movable body (human) 20 is closer to the right It gets bigger. The value P obtained by the position detection calculation unit 30 is converted into an analog signal Sp by the D / A converter 32 and then supplied to the motor drive circuit 34 as an error signal. Thus, the drive circuit 34 supplies a drive signal MD to the drive motor 36 so as to amplify the input signal Sp and reduce the error signal. Thus, for example, as shown in FIG. 3 (A), when the movable body 20 is on the left side when viewed from the CRT display 10, the rotation base 12 is rotated in the direction of the left (arrow Fa). The gear 36 is designed to rotate. Also, conversely, as shown in FIG. 3 (0), when the movable 03-05-2019 3 body 20 is on the right side, the motor 36 is rotated in such a direction as to rotate the rotary table 12 to the right (arrow Fb). It has become. Then, as shown by the dotted line 10 'in FIG. 3 ((), (a), when the screen 10a of the display 10 directly faces the movable body 20 (more precisely, the retroreflecting material 22), the motor 36 rotates. Therefore, the rotation of the turntable 12 is stopped. In addition, the direction of the display 10 is fixed (in this case, the retroreflective member 22 is removed from the movable body 20 or the operation of the automatic direction control device is covered with a non-reflective or irregularly reflective cover) You may make it stop. In addition, although the turntable 12 of the above-described embodiment is configured to be rotatable only in the left and right direction, it can be configured to rotate up and down. In that case, the movable body position in the up and down direction is detected A light emitting element, a light receiving element, a signal processing system, and a driving system may be provided. Further, the movable body 20 is not limited to a human, and other movable objects such as a robot are also possible. The size and shape of the retroreflective member 22 can be arbitrarily selected, and may be attached, for example, over substantially the entire surface of the movable body. In addition to infrared rays, wave beams having a certain directivity, such as sound waves, can also be used. Further, the object whose orientation is controlled according to the present invention is not limited to the above-described display, and various objects such as speakers, fans, figurines, exhibits, etc. are possible. (Effects of the Invention) As described above, according to the present invention, a predetermined object can be automatically directed toward the position of the movable body following the position of the movable body to which the retroreflecting means is attached. Since it is possible, the conventional manual operation and remote control operation do not require human direction operation which is bothersome. [0002] Brief description of the drawings [0003] FIG. 1 is a perspective view showing a display apparatus to which an automatic direction control device according to an embodiment of the present invention is applied. FIG. 2 is a block diagram showing a stem / arrangement of the automatic direction control gK. The schematic plan view for demonstrating the effect ¦ action of the said automatic direction control apparatus, and FIG. 4 are figures which show the directional characteristic of the infrared rays radiated ¦ emitted from the light emitting element used by the said Example. DESCRIPTION OF SYMBOLS 10 ...... CRT display, 10a ... Screen 12, 12 ... Rotating table 14.16 ... Light emitting element 18 ... Light receiving element 20 ... Movable body (human 22 · · · · · · · 03-05-2019 4 retroreflecting material, 30 · · · · · · · · movable body position calculation unit, 34 · · · motor drive circuit, 36 · · · · · · · drive motor. 03-05-2019 5
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