JPH0636632B2 - Remote control position detector - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detecting device for a wireless remote controller using infrared light as a medium, and controls the wind direction of an air conditioner such as a room air conditioner and the attitude direction control of an AV device such as a television. To be used for.

2. Description of the Related Art As a remote control position detection device, a position detection signal output from a remote control through an infrared light emitting diode having a wide directional output is received by a plurality of light receiving elements having narrow directional characteristics arranged in different directions. , Which detects the position and direction of the remote controller by comparing the intensities of the respective received light outputs.

Problems to be Solved by the Invention However, in the above conventional technology, the position detection function of the remote controller is considered only as an independent function, and various instruction functions from the remote controller, that is, a normal signal of a plurality of commands configured by digital codes The light-receiving means was considered separately.

In view of the above problems, the present invention provides a remote control position detecting device which is composed of a small number of light receiving means, and these light receiving means have both functions of remote control position detection and normal signal reception, and operate with high accuracy in a short time. It is provided.

Means for Solving the Problems In order to solve the above-mentioned problems, a remote controller position detecting device of the present invention comprises a remote controller position detecting signal generating means, a normal signal generating means in which a plurality of commands are constituted by digital codes, and the remote controller position. A remote controller having infrared signal generating means for independently outputting the signals from the detection signal generating means and the normal signal generating means as infrared light, and an infrared signal transmitted from the remote controller, respectively, and receiving a light receiving element section, respectively. A remote control position detection signal light receiving means and a normal signal light receiving means, each of which has a common configuration of an amplifier circuit and a tuning / detection circuit in the respective circuit portions of the remote control position detection signal light receiving means and the normal signal light receiving means. It is what

With the above-described configuration, the present invention configures a remote control system with a small size and a compact volume by sharing the amplification circuit and the tuning / detection circuit in the respective circuit parts of the remote control position detection signal light receiving means and the normal signal light receiving means. be able to.

Embodiment A remote control position detecting device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a shape diagram of a remote control position detecting device in an embodiment of the present invention. In FIG. 1, reference numeral 1 is a remote controller, and 2 is a light receiving section provided with remote controller position detecting means and normal signal detecting means. A signal from the remote controller 1 to the light receiving unit 2 is sent by infrared light. The function of detecting the position of the remote controller is detected by the incident angle of infrared light on the light receiving unit 2.

FIG. 2 is an internal block diagram of the remote controller 1. The remote controller 1 has a remote control position detection signal generation means, a normal signal generation means, and an infrared signal generation means built therein. The remote control position detection signal generation means and the normal signal generation means generate signals at different timings, and infrared rays are generated. A signal is transmitted via the signal generating means.

FIG. 3, FIG. 4 and FIG. 5 are explanatory views showing the directivity of the receiving sensitivity of the light receiving section. In FIG. 3, reference numerals 21, 22, and 23 denote light receiving elements for detecting the remote control position, 24 denotes the light receiving element 21,
A reflector for making the directivity of 22 and 23 narrower, and a light receiving element 25 for detecting a normal signal. The light receiving elements 21, 22, and 23 are fixed by changing their mounting directions, and have a narrow directivity by the reflector 24. The optical directivities of the respective receiving sensitivities are 21 ', 22', and 4'in FIG. 4, respectively. It looks like 23 '. Therefore, the directionality of the infrared light from the remote controller is determined by the light receiving elements 21 and 2.
It can be determined by the output current levels of 2, 23.

Further, the light receiving element 25 has a wide directivity as in 25 'in FIG. 5, and can receive a normal signal from any direction.

Next, the internal circuit configuration of the light receiving section 2 will be described with reference to FIG. In FIG. 6, reference numeral 26 is a remote control position detection signal / normal signal switching circuit, 27 is an amplifier circuit, 28 is a tuning / detection circuit, and 29 is a waveform shaping circuit. When the normal signal is sent from the remote controller 1, the signal from the light receiving element for normal signal detection is amplified by the normal signal operation signal D.
7, the tuning / detection circuit 28, and the waveform shaping circuit 29 are output as a normal signal. Next, when the position detection signal is sent from the remote controller 1, the remote controller position detection operation signals A, B, and C are sequentially switched, and the signals from the remote controller position detection light receiving elements 21, 22, and 23 are respectively corresponding thereto. Is output as a remote control position signal through the amplifier circuit 27 and the tuning / detection circuit 28.

As described above, according to the present invention, by making the respective circuit parts of the remote control position detection signal light receiving means and the normal signal light receiving means have a common configuration, the variation of each circuit due to the common use of the amplifier circuit and the tuning / detection circuit. It is possible to improve performance and assemblability by reducing the number of parts and the number of adjustment points. In addition, the remote control system can be constructed in a small and compact volume, which is very effective. When the present invention is applied to an air conditioner such as an air conditioner, it is possible to improve comfort by performing centralized air blowing or blowing on a person near a remote controller.

Further, by applying the present invention to an AV device such as a television, it is possible to perform human-centered optimal control by making the screen face a person or setting a sound field centered on the person.

[Brief description of drawings]

FIG. 1 is a shape diagram of a remote controller position detecting device according to an embodiment of the present invention, showing a positional relationship between a remote controller and a light receiving section, and FIG. 2 is an internal block diagram of the remote controller, FIGS.
FIG. 5 is an explanatory diagram showing the directivity of the receiving sensitivity of the light receiving portion, and FIG. 6 is an internal circuit diagram of the light receiving portion. 1 ... remote control, 2 ... light receiving section 21, 22, 23 ...
Light receiving element for remote control position detection, 24 ... Reflector, 2
5 ... Light receiving element for detecting normal signal, 21 ', 22', 2
3 '... Optical directional characteristics of the light receiving elements 21, 22, 23, 2
5 '... Optical directional characteristic of the light receiving element 25, 26 ... Switching circuit for remote control position detection signal and normal signal, 27 ...
Amplification circuit, 28 ... Tuning / detection circuit, 29 ... Waveform shaping circuit.

Front Page Continuation (72) Inventor Keiichi Kuriyama 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-61-253482 (JP, A) SAIKAI 62-53862 (JP, U) Actual development Sho 61-109273 (JP, U)

Claims (1)

[Claims] 1. A remote control position detection signal generation means, a normal signal generation means in which a plurality of commands are constituted by digital codes, and signals from the remote control position detection signal generation means and the normal signal generation means are independently infrared light. A remote controller having an infrared signal generating means for outputting as, and an infrared signal transmitted from the remote controller, respectively, and having a remote control position detection signal light receiving means and a normal signal light receiving means each comprising a light receiving element portion and a circuit portion, A remote controller position detecting device in which an amplifier circuit and a tuning / detection circuit of the respective circuit portions of the remote controller position detection signal light receiving means and the normal signal light receiving means have a common configuration.