JPH04208797A - Optical remote control device - Google Patents

Abstract

PURPOSE:To control plural control apparatuses by one optical signal transmitter by driving each light emitting element in accordance with information indicating the light emitting interval of the light emitting element inputted by a communication means. CONSTITUTION:The information of the light emitting interval inputted through a communication control part 16 is temporarily stored in a memory 18. A CPU 17 to be a control means analyzes the information of the light emitting interval stored in the memory 18 and turns on/off the output of an output port 19 by a time interval based upon the information. The signal of the output port 19 us inputted to a modulation circuit 4 and modulated by the circuit 4 together with and the output of a transmitter 3 transmitting subcarrier frequency, and a signal from the circuit 4 is amplified by an amplifier 5 to be a driving means, intermittently energizing a light emitting diode 6. Thus, an optical signal 7 for controlling an apparatus 14 to be controlled is outputted. Consequently plural apparatuses having respectively different code systems can be controlled by one optical remote control device.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to AV equipment such as cassette decks, video decks, and televisions, home appliances such as air conditioners, lighting equipment, and shutters, and appliances that have a crane function that is controlled by their local area. In equipment, functions that were conventionally controlled by a remote controller can be controlled from the outside via communication.

[Prior Art] AV equipment such as cassette decks, video decks, and televisions, home appliances such as air conditioners, lighting equipment, and shutters, and other devices that are remotely controlled by light are controlled by controlled devices and light built into the controlled devices. It consists of a signal receiver and an optical signal transmitter housed in a body different from the one to be controlled.

FIG. 4 shows a conventional example. Remote control using optical signals is comprised of a device to be controlled 14, an optical signal receiver 13 built into the device to be controlled, and an optical signal transmitter 12 housed in a body different from the device to be controlled.

The optical signal transmitter 12 includes a key switch 1 operated by an operator, an encoder 2 that converts a signal from the key switch 1 into a predetermined code string, and an oscillator 3 that transmits a subcarrier frequency. a modulation circuit 4 that modulates the output of the transmitter 3 with the output of the encoder 2;
The light emitting diode 6 is configured by an amplifier 5 that amplifies the signal from the light emitting diode 6 and causes the light emitting diode 6 to emit light intermittently.

The optical signal receiver 13 built in the controlled device 14 receives the intermittent light 7 output from the light emitting diode 6 of the optical No. 1 transmitter 12 with the phototransistor 8, and the intermittent light 7 is converted into an electrical pulse. . The output of the phototransistor 8 is amplified by an amplifier 9 and converted into a digital data string by a demodulation circuit 10. The data string is converted into a control signal by the decoder 11 and input to the control unit 15, which causes the controlled device 14 to perform a preset operation.

[Problems to be solved by the invention] In the conventionally used optical remote control system, a device to be controlled, an optical signal receiver built in the device to be controlled, and a device housed in a separate body from the device to be controlled are used. In order to control multiple devices, multiple optical signal transmitters with different code systems are required to prevent mixing of optical signals. There's a problem.

Therefore, remote control using light is usually only possible within a range of several meters, and control from a long distance is impossible. becomes. Therefore, with the prior art, it is impossible to control the machine 5 by remote control using light from a separate room.

The present invention provides a means that enables remote control using light even if there is a long distance or an obstacle between the control equipment and the control equipment, and also enables control of multiple control equipment with one optical No. 1 transmitter. It is about making it possible.

[Means for Solving the Problems] The present invention provides a light emitting diode or other light emitting element, a driving means for driving the same, a communication means for inputting information on a light emitting interval of the light emitting element, and the driving means and the driving means. It is characterized in that it is equipped with a control means including a CPLI and a memory for controlling the communication means, and drives the light emitting elements in accordance with information about the light emission interval of the light emitting elements inputted by the communication means.

[Operation] According to the present invention, it is possible to control a plurality of devices having different code systems by driving the light emitting elements according to the information on the light emission interval of the light emitting elements inputted by the communication means.

Furthermore, by installing the optical remote control device according to the present invention in a range where control equipment can be controlled by light, and by inputting information on the light emitting interval of the light emitting elements to the optical remote controller using communication means, it is possible to control equipment over long distances. Alternatively, even if there is an obstacle between the device and the control device, it is possible to remotely control the device using light.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows one embodiment of the present invention.

This is performed for the remote control device 14 using an optical signal. Note that the configuration of the controlled device 14 is the same as that of the conventional example, so a description thereof will be omitted. Optical remote control device according to the present invention [1 C. Communication line 20
It is connected to via the communication control section 16. Passing line 2
0 is a home bus, power line modem, local area network, etc., and is connected to a host controller that inputs light emission interval information to the optical remote control device.

The information on the light emission interval input via the communication control unit 16 is temporarily stored in the memo 11 1 8 .

The CPU 17, which is a control means, analyzes the information on the light emission interval stored in the memory 18, and turns off and on the output of the output capacitor 19 at time intervals based on the information. The f-word from the output port 19 is input to the modulation circuit 4 and is modulated by the modulation circuit 4 with the output of the oscillator 3 that transmits the subcarrier frequency.

The signal from the modulation circuit 4 is amplified by an amplifier 5, which is a driving means, and causes a light emitting diode 6 to emit light intermittently.

As described above, the optical signal 7 that controls the controlled device 14 is outputted.The optical signal 7 that controls the controlled device 14 is output.
An example is shown in FIG.

The optical signal constitutes a control signal by combining “League, 0゛, 1”, and “stop code”. An example of the control signal is shown in 23. Here, “10110010”
The data shows that. Each code consists of a mark with an optical signal and a space with no optical signal.
The mark portion is modulated by subcarriers.

Information on the emission interval is obtained by first defining the time combination of marks and spaces for each code, and then showing the sequence of each code. There is a method of sequentially indicating mark and space times from the beginning of the control signal.

In addition to the method of inputting light emission interval information each time a control signal is emitted, there is also a method of storing light emission interval information in advance in the memory of the optical remote control device and instructing which information should be used to emit light. There is.

FIG. 2 shows another embodiment of the invention. This is done for optical signal control. The optical remote control device according to the present invention uses wireless communication for communication with a host controller. Therefore, information on the light emission interval of the host controller color is input to the transmitter/receiver 21 from the antenna 22. The transmitter/receiver 21 is connected to the channel control device 16 .

The light emission interval information input via the communication control unit 16 is
It is temporarily stored in the memory 18.

The CPU 17 analyzes the information on the light emission interval stored in the memory 18, and adjusts the output boat 1 according to the time interval based on the information.
Turn on/off the output of 9. Out crab t? - The signal of 19 is turned on and off by the CPU 17 at a cycle according to the subcarrier frequency, and is directly amplified by the amplifier 5, causing the light emitting diode 6 to emit light, and the optical signal 7 that controls the device 14 to be controlled is generated. Output.

[Effects of the Invention] According to the present invention, an optical signal for controlling a device to be controlled is output according to the information on the light emission interval from the host I/controller. equipment can be controlled.

Furthermore, by installing the optical remote control device according to the present invention within the control range of the device to be controlled,
When there is a long distance or an obstacle between the device and the controlled device,
Even in the case of a host controller, it is possible to control a device to be controlled that can be controlled by light.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment, FIG. 3 is an example of an optical control signal, and FIG. 4 is a block diagram showing a conventional example. . 6 Light emitting element 5 - amplifier (driving means) 16 Communication control section (communication means) 17 - CPU (control means) 18 Memory

Claims (1)

[Claims] An optical remote control device comprising a light emitting element, a driving means for driving the light emitting element, a communication means for inputting information on a light emitting interval of the light emitting element, and a control means for controlling the driving means and the communication means.