JPH0215157B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention provides a method for turning on and off a large number of lighting loads, for example.
The present invention relates to a channel setting device for a multi-channel remote control device that selects and individually controls controls such as dimming using one transmitter.

[Background technology]

In general, multi-channel remote control devices send a channel code signal (address code signal) in which the channel number is encoded when the transmitter sends a control signal to turn on or off a lighting load, for example. It receives transmission signals consisting of channel code signals and control signals from the device, decodes the received channel code, and determines whether it is its own channel (address).
This device performs a control operation upon receiving the next control signal only if it is on its own channel. Therefore, each receiver needs to have channel information to recognize its own channel (address).

Conventionally, in order to hold channel information in a receiver, it was common to use a mechanical switch to change the set channel. An example of such a multi-channel remote control device is shown in FIGS. 1 to 3. Figure 1 shows transmitter A, and the switches S ₁₁ to _{S 44} are pushbutton switches that display, for example, 1, 2, 3, 4..., ON, OFF, and the channel is specified using the numerical pushbutton switch. Specify load control with the ON or OFF pushbutton switch. The control circuit 1 encodes and outputs the channel number and control type according to the pressed pushbutton switches and their order. The coded output signal from the control circuit 1 is amplified by the transistor Tr and drives the infrared light emitting diode _D1 . Output signal is usually several 10k
A modulation method is used in which the Hz signal is intermittent depending on the code.

FIG. 2 is an example of receiver B. Modulated light from receiver A is received by photodiode PD. The received signal is then amplified by the amplification circuit 2. Further, here, in order to separate it from noise, only the carrier frequency of the transmission is tuned and amplified.
Further, the signal outputted from the amplifier circuit 2 is detected by a diode D ₂ , a capacitor C ₁ and a resistor R ₄ , and waveform-shaped by a Schmitt trigger circuit 3 to obtain a demodulated signal. The control circuit 4 decodes this signal, determines whether it is a signal of its own channel, and outputs a control signal. The output of the control circuit 4 drives the light emitting diode of the phototriax SSR to perform on/off control of the lamp L, which is the load to be controlled. AC is an alternating current power source.

FIG. 3 shows an example of a conventional control circuit 4, in which a channel setting switch 5 of receiver B is used. That is, the channel setting switch 5 consists of four mechanical switches _S1 to _S4 .
By combining these four switches _S1 to _S4 , 16 types of channels can be set. 6 is a decoding circuit which is a conversion means for converting the transmission signal from the transmitter A into a channel code or a control signal. Channel signal e~ set with channel setting switch 5
h, and channel code signals a to d obtained by decoding the received transmission signal by the decoding circuit 6.
A match is detected by the match detection circuit 7.
Incidentally, this coincidence detection circuit 7 constitutes a coincidence detection means. The control signal j decoded from the decode circuit 6 is held in the flip-flop 8 by the signal i from the coincidence detection circuit. Therefore, the received control signal 1 is output only when the channels match. However, since the channel setting switch 5 is set using mechanical switches S ₁ to S ₄ , the switch requires space and is difficult to downsize. When built-in, only the switch part needs to be exposed for operation, and furthermore, in the case of ceiling-mounted lighting equipment, there is a problem that it is difficult to change channels due to the high location. Also, if there are 16 channels, the channel setting switch 5 can be made as simple as possible by using four switches S ₁ to S ₄ , or by using a 16-step switch with an encoder to make it 4 wires. Ta. However, the former was difficult for ordinary consumers to operate, and the latter had problems with cost, space, reliability, etc.

[Purpose of the invention]

The present invention has been provided in view of the above-mentioned points, and is a multi-channel remote control device for the purpose of facilitating channel setting operations by setting the channels of each receiver using signals from a transmitter. A setting device is provided.

[Disclosure of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. The gist of the present invention lies in the control circuit 4 of the receiver B, and the other circuits of the receiver B and the transmitter A are the same as those of the prior art. In FIG. 4, a received and detected pulse signal is input to the k input of the control circuit 4. The decoding circuit 6 determines the type of signal sent by converting this time-series signal into parallel multiple-bit signals existing simultaneously, and constitutes a converting means. In this embodiment, 16 types of channels are discriminated using 4 bits, and at the same time, the type of control is discriminated using 1 bit. That is, the channel code signal is
A control signal is output from d, and a control signal is output from j. 9 is a flip-flop composed of semiconductor memory;
The channel code of the decoding circuit 6 is input from a to d and the information is stored and retained.
It constitutes a memory holding means. S allows flip-flop 9 to memorize the channel code,
The channel registration switch is a mode switching signal generating means for generating a signal for switching the mode for controlling the load, and is used to input the holding timing of the flip-flop 9. Transmitter A and receiver B
while selecting the channels you want to keep.
When this channel registration switch S is pressed, the channel codes appearing at a, b, c, and d of the decoding circuit 6 are held in the flip-flop 9. When the channel registration switch S is open, the channel code output from the decoding circuit 6 is not held in the flip-flop 9 and is used to control the load. In this way, once a channel code is registered in the flip-flop 9, when a channel selection and control operation is performed with the transmitter A, the information on the type of channel sent at that time is sent to the decoding circuit 6. The control information j is compared with the channel codes a' to d' appearing at channels a to d and registered by the match detection circuit 7, and only when they match, the control information j is held by the flip-flop 8 and output. This flip-flop 8 and the photo-triump SSR described above constitute a control means. Here, the channel registration switch S can also be in the form of a pull switch (pull string type). In this case, the load to be controlled is a high lighting fixture installed on the ceiling that cannot be reached, and the load inside the lighting fixture is If receiver B is installed in the TV, you can set or change the channel by pulling the pull cord and turning on the channel registration switch S, without having to take the trouble to remove the lighting fixture from the ceiling or use a stepladder. can be easily done. In addition, the switch of transmitter A that is operated when actually controlling a certain load and the procedure for pressing it can be partially or completely the same as the switch and procedure for setting the channel for that load. Therefore, the operation is easy to understand. For example, in channel settings, while pressing the switch "7" and "set" of transmitter A, pull the pull switch to turn on the channel registration switch S of transmitter B. If you want to turn on that load, press "7" and "set". , "ON"
All you have to do is press . Furthermore, a numeric keypad can be used on the transmitter A to specify a channel when setting a channel, making it easy to operate.

FIG. 5 shows a specific example of the decoding circuit 6, which is composed of a monostable multivibrator 10 and a shift register 11. In this example, the decoding circuit 6 is shown in which the received and detected signals are encoded into a binary representation of the channel type by the length or shortness of the pulse width, and the control type is converted into a time series signal. Monostable multivibrator 1
0 outputs a constant pulse width for one pulse input, and the constant pulse width is
It is set between the two types of pulses input to k, long and short. Therefore, if the state of k when the output of the monostable multivibrator 10 falls is maintained, the length and shortness of the pulse can be changed to the level "H",
It can be converted to "L". Then, the shift register 11 sequentially performs the conversion on the pulse train, and the results are output to a, b, c, d, and j.

FIG. 6 shows another embodiment of channel code registration, in which the transmission signal is decoded using a monostable multivibrator 10 and a shift register 11, similar to that shown in FIG. , another shift register 12 is used to hold the channel code of the receiver B, and when the channel registration switch S is on, the m input goes to H level, and is held in the shift register 12 at the same time as decoding. When m input is at L level, shift register 1 is input by NAND circuit 14.
2 is blocked, and the NAND circuit 13 allows the clock to be input to the shift register 11. Note that 15 is an inverter.

FIG. 7 shows another embodiment. In this embodiment, the control signal is not sent separately from the channel code, but only the channel code is transmitted, and only the channel code registered in the flip-flop 9 is transmitted. For example, the load is controlled from on to off, or from off to on. Furthermore, the channel registration switch S is also used as a switch for manually controlling the load without using a remote control. The decoding circuit 6, the coincidence detection circuit 7, and the flip-flop 9 operate in the same way as in the case shown in FIG. If so, the output i of the coincidence detection circuit 7 is H.
become the level. As a result, a clock is input to the toggle flip-flop 8 via the OR circuit 16, and its output 1 is inverted. When registering the channel code in the flip-flop 9, proceed as follows. Transmit the channel code from the transmitter and turn on the channel registration switch S. 1
The monostable multivibrator 7 outputs a pulse with a constant time width after the pulse train starts being input to k. Therefore, if the channel registration switch S is turned on sufficiently early after the transmission, the clock is input to the flip-flop 9 via the AND circuit 18, and the received and decoded channel code of the output of the decoding circuit 6 and the flip-flop are input. Hold at 12. At this time, a clock is input to the flip-flop 8 through the OR circuit 16, and the output is inverted, but this is not a big problem. If you want to prevent this, use a monostable multivibrator 17
What is necessary is to input the inverted output of the signal m and the logical product of the signal m to the OR circuit 16.

In the first to third embodiments described above, the receiver B is provided with a channel registration switch S for storing a channel code, but in FIG. 8, a channel registration switch S is provided on the transmitter A side, In this embodiment, a registration signal to register the channel code and control signal together is transmitted, and the receiver B side holds the channel code based on the registration signal. In this case, it is necessary to take measures to prevent the signal from being received by receivers other than the receiver B that is desired to be registered. In this example, a signal with a frequency different from the carrier frequency is used as the registration signal. By using this registration signal, channel setting and control modes are switched. 2' is an amplification circuit that selectively amplifies only the frequency of the registered signal, and connects the registered signal to a photodiode.
When the PD receives light, it is amplified by the amplifier circuit 2', detected by the diode _D2 ', capacitor _C1 ', and resistor _R4 ',
The waveform is shaped by the Schmitt trigger circuit 3',
It is input as the clock of flip-flop 9. At this time, the channel code output from the decoding circuit 6 is held in the flip-flop 9. In addition, if you make the transmission output weak only during registration and operate the transmitter A close to the receiver B,
This can be an effective method since a switch for registration in receiver B is not required.

In each of the above embodiments, each of the constituent means has been explained using a specific electronic circuit, but it goes without saying that most of these means can be replaced by one microcomputer. In such a case, only the number of channel setting switches is reduced without any extra hardware, and the rest can be realized by software, making it possible to reduce cost and size. Further, by configuring the memory holding means for holding the channel code using a semiconductor memory, it is possible to achieve low cost, miniaturization, and high reliability.

〔Effect of the invention〕

As described above, the present invention includes a transmitter that transmits a transmission signal including a channel code, and a receiver that receives the transmission signal from the transmitter and controls the load if the transmitter has its own channel code. a conversion means for converting a transmission signal from the above into a channel code; a mode switching signal generation means for generating a signal for switching between modes for channel code setting and load control; a memory holding means that is controlled by a channel code setting signal and stores and holds the channel code from the conversion means;
a coincidence detection means for outputting a coincidence detection signal when the channel code stored and held by the memory holding means and the channel code transmitted from the transmitter from the conversion means match; and a coincidence detection signal from the coincidence detection means. Since the receiver is composed of a control means for controlling the load based on the detection signal, when registering a channel code in the receiver, a signal for setting the channel code is generated from the mode switching signal generation means. , by controlling the memory holding means with the signal and transmitting the channel code to be registered from the transmitter,
The channel code output from the conversion means of the receiver is stored as is in the storage means, eliminating the need for the conventional channel setting switch, resulting in lower costs and easier operation. It is something. Moreover, since a mechanical channel setting switch is not required, the space for the switch part is no longer required and the device can be made more compact.Furthermore, even if the load is a lighting device and a receiver is built in, it can be used as a conventional device. In addition, there is no need to expose the switch, and if the mode switching signal generating means is operated by a pull string, for example, the channel code can be easily changed even if it is mounted on the ceiling. It is.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional transmitter, Fig. 2 is a block diagram of a receiver of the same type, Fig. 3 is a circuit diagram of a control circuit of the receiver of the same type, and Fig. 4 is an embodiment of the present invention. 5 is a specific circuit diagram of the decoding circuit of the same as above, FIG. 6 is a circuit diagram of the control circuit of another embodiment of the same as above, and FIG. 7 is a circuit diagram of another example of the same as above. The circuit diagram shown in FIG. 8 is another embodiment of the same. A represents a transmitter, B represents a receiver, and S represents a channel registration switch.

Claims (1)

[Claims] 1 Consists of a transmitter that sends out a transmission signal that includes a channel code, and a receiver that receives the transmission signal from the transmitter and controls the load if it has its own channel code, and converts the transmission signal from the transmitter into a channel code. mode switching signal generating means for generating a signal for switching the mode between channel code setting and load control mode, and a channel code setting signal from the mode switching signal generating means when setting the channel code. A memory holding means that is controlled to store and hold the channel code from the converting means, and the channel code stored and held by the memory holding means matches the channel code transmitted from the transmitter from the converting means. 1. A channel setting device for a multi-channel remote control device, which comprises a receiver configured with a coincidence detection means for outputting a coincidence detection signal from the coincidence detection means, and a control means for controlling a load based on the coincidence detection signal from the coincidence detection means.