JPH1051870A - Remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit a control signal by utilizing a power supply line to a load while supplying stable electric power to the load by replacing a partial waveform in a specific section of the voltage waveform of an AC power source to be applied to the load with a different waveform which is nearly equal in amplitude and period to the voltage waveform of the AC power source. SOLUTION: Master control equipment 3 replaces the voltage waveform A of the AC power source AC with the voltage waveform B, generated by inverting the voltage waveform A by a waveform processing part 3a only for a specific section T specified by a control part 3c, by a waveform arithmetic part 3b and supplies the resulting waveform to the load 2 and a control terminal 4 through the power supply line 1. The control terminal 4 extracts the specific section T from the output of the waveform arithmetic part 3b by a signal extraction part 4a and controls the load 2 through a load control part 4b. Consequently, the control signal can be transmitted by utilizing the power supply line 1 for supplying the electric power to the load 2, and the power source waveform to the load has no deleted waveform part, so the stable electric power can be supplied to the load 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a remote control device, and more particularly to a remote control device for transmitting a control signal using a power supply line from an AC power supply to a load.

[0002]

2. Description of the Related Art Conventionally, there has been known a remote control device which transmits a control signal, for example, a dimming signal, to a load, for example, a lighting device by using a power supply line for supplying power. .

FIG. 7 shows a control method of such a conventional remote control device (first conventional example). This control method is based on two half-waves having a sine wave which is a voltage waveform of an AC power supply AC. The waves M1 and M2 are deleted, and the deleted half waves M1 and M2 are deleted.
The number of periods of the sine wave within a predetermined time T between M2 is counted, and the number of periods is used as a dimming signal.

FIG. 8 shows a control method of another conventional remote control device (second conventional example). The difference from the first conventional example is that a predetermined method is used instead of deleting half waves. The difference is that the waveforms P1 and P2 of each phase are deleted, and the other method is the same as that of the first conventional example.

[0005]

However, in the control method of the remote control device shown in the first conventional example having the above-described structure, the half-wave is deleted from the power supply waveform supplied to the lighting device as a load. Since the M1 and M2 parts exist,
In this portion, there is a problem that the effective value of the power supply voltage to the load is reduced, the power supplied to the load is reduced, and the lighting device as the load flickers.

Further, in the control method of the remote control device shown in the second conventional example, although the decrease in the power supplied to the load is reduced, the waveforms P1 and P2 of each predetermined phase are deleted, so that the power is reduced. Inevitably, the flickering of the lighting device is slightly better, but the flickering still occurs.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a remote control capable of transmitting a control signal using a power supply line to a load while supplying stable power to the load. Providing the device, and
Another object is to provide a remote control device that eliminates flicker when the load is a lighting device.

[0008]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, an AC power supply applied to a load from an AC power supply via a power supply line is provided. A control base unit 3 for appropriately processing a part of the voltage into a control signal for the load 2 and transmitting the control signal; a control base unit 3 connected to the control base unit 3 via the power supply line 1; In a remote control device including a control terminal 4 for extracting a signal and transmitting the extracted signal to a load control unit 4b to control the load 2, the control base unit 3 controls the voltage waveform of the AC power supply AC in a manner that an amplitude and a cycle are substantially equal. A waveform processing unit for processing the AC voltage waveform into at least a part of a predetermined section of the AC voltage waveform; It is characterized by the following.

According to the second aspect of the present invention, the first aspect is provided.
In the remote control device described above, the different waveform is a waveform having a phase different from that of the voltage waveform of the AC power supply AC.

[0010] According to the third aspect of the present invention, the first aspect is provided.
In the remote control device described above, the different waveform is a waveform obtained by performing full-wave rectification on a voltage waveform of the AC power supply AC.

According to a fourth aspect of the present invention, in the remote control device according to any one of the first to third aspects, the signal extraction unit 4a of the control terminal 4 is connected to the power supply line. The control signal is extracted by setting the case where the voltage waveform input via 1 is different from the immediately preceding waveform in each cycle to 1 as a control signal.

According to a fifth aspect of the present invention, in the remote control device according to any one of the first to third aspects, the signal extraction unit 4a of the control terminal 4 is connected to the power supply line. The control signal is extracted by setting the case where the voltage waveform input via the unit 1 is different from the voltage waveform of the AC power supply AC in each cycle to one.

According to a sixth aspect of the present invention, in the remote control device according to the fourth or fifth aspect, the control terminal 4 controls the load 2 by counting the number of consecutive ones. It is characterized by the following.

According to a sixth aspect of the present invention, in the remote control device according to the fourth or fifth aspect, the control signal transmitted from the signal extraction unit 4a by the load control unit 4b is converted into a digital signal. The load 2 is controlled.

According to an eighth aspect of the present invention, in the remote control device according to any one of the first to seventh aspects, the load 2 is a lighting device. It is.

[0016]

1 and 2 show a first embodiment of a remote control device according to the present invention. This remote control device comprises a control base unit 3 and a control terminal 4. It is configured.

The control base unit 3 is connected to a commercial power supply, which is an AC power supply AC, and processes the AC voltage waveform A into a different waveform B having the same amplitude and cycle and the same phase but inverted phase. Combining the unit 3a, the different waveform B, which is the output waveform of the waveform processing unit 3a, and the voltage waveform A of the AC power supply AC, that is, replacing the voltage waveform A of the AC power supply AC in the predetermined section T with the different waveform B. A waveform calculation unit 3b for controlling the waveform calculation unit 3b;
An input unit 3 for inputting and instructing a control state to the control unit 3c
d, the waveform processing unit 3a, the waveform calculation unit 3b, and the control unit 3
c, etc., and a power supply unit 3e for supplying operating power. In addition, when the output side of the waveform calculation unit 3a is connected to the power supply line 1 of, for example, a lighting device, which is a load 2, and a control signal is not transmitted, a waveform A that is an AC voltage waveform of an AC power supply AC is output as it is. It has been like that.

Therefore, a sine wave which is an AC voltage waveform A of the commercial power supply AC is applied to the power supply line 1 when the control signal is not transmitted, and when the control signal is transmitted, the control unit 3 c The waveform calculator 3b is controlled so that the waveform calculator 3b replaces the AC voltage waveform A with a different waveform B in the middle of the AC voltage waveform A. When the transmission of the control signal is completed, the waveform returns to the original AC voltage waveform A again. Have been. Then, for example, when the numerical value 10 is transmitted as a control signal, the waveform is changed so that the waveform is replaced with a different waveform B at a point of zero crossing in the middle of the AC voltage waveform A and the phase is inverted. At the point of zero crossing after being sent, the phase is inverted and the waveform returns to the original AC voltage waveform A. That is, the power supply waveform C to the load 2 applied to the power supply line 1 is such that a different waveform B for ten periods is output within a predetermined section T between two points where the phases are inverted. At the two phase change points, half waves of the same polarity are made to be continuous.

The control terminal 4 is connected to a power supply line 1 extending from the output side of the waveform calculation unit 3b, and extracts a control signal from the power supply line 1; It comprises a load control unit 4b for controlling the lighting device, which is the load 2, by a control signal from 4a, a signal extraction unit 4a, and a power supply unit 4c of the load control unit 4b.
Then, the signal extraction unit 4a extracts, from the power supply waveform C to the load 2 output from the waveform calculation unit 3b, the number of periods of a different waveform B transmitted within a predetermined section T between two points where the phases are inverted. It has been like that.

With such a configuration, in the remote control device according to the present embodiment, a control signal can be transmitted using the power supply line 1 that supplies power to the load 2, and a signal line is provided. Since there is no necessity and the power supply waveform C to the load 2 does not have a portion where the waveform is deleted, stable power can be supplied to the load 2 and flicker occurs even if the load 2 is a lighting device. Nothing.

FIG. 3 shows a second embodiment of the remote control device according to the present invention. The difference from the first embodiment is that a different waveform B output from the waveform processing section 3a is used.
Is a waveform obtained by performing full-wave rectification on the voltage waveform A of the AC power supply AC, and the other configuration is the same as that of the first embodiment. Even with such a configuration, the same effects as in the first embodiment can be obtained.

FIG. 4 shows a fourth embodiment of the remote control device according to the present invention. The difference from the first embodiment is that the control base unit 3 outputs a signal from the waveform calculation unit 3a. Then, the power supply waveform C to the load 2 applied to the power supply line 1 is
In the case where the waveform B is different from the immediately preceding waveform in each cycle, that is, the control signal is set to 1 when the phase is different and 0 when not, and the signal extraction unit of the control terminal 4. The load 2 was controlled by extracting a control signal as a digital signal from the voltage waveform at 4a and transmitting the control signal to the load control unit 4b. The signal extraction unit 4a controlled the load 2 by counting the number of consecutive ones. The other points are the same as those of the first embodiment. Even with such a configuration, the same effects as in the first embodiment can be obtained.

FIGS. 5 and 6 show a fifth embodiment of the remote controller according to the present invention. The difference from the second embodiment is that an address setting section 4d is provided in the control terminal 4. In addition, the control base unit 3 changes the power supply waveform C to the load 2 output from the waveform calculation unit 3a and applied to the power supply line 1 with a waveform different from the voltage waveform A of the AC power supply AC every cycle. In some cases, that is, in this case, the case where the waveform is full-wave rectified is set to 1 and the case where the voltage waveform A of the AC power supply AC is set to 0, for example, together with the address of the load 2 according to a format such as a start-stop synchronous communication system. The point that the control signal is transmitted is that the control signal as the address signal and the digital signal is extracted from the voltage waveform by the signal extraction unit 4a of the control terminal 4 and transmitted to the load control unit 4b. Of the first implementation On purpose it has the same configuration. Even with such a configuration, the same effects as in the first embodiment can be obtained.

In each of the above embodiments, the waveform of the different waveform B having a different phase is a waveform obtained by inverting the phase of the voltage waveform of the AC power supply AC, that is, a waveform shifted by 180 degrees. However, the phase may be shifted several times as long as the phases are different. At this time, the amplitude and the cycle are also the same as the waveform of the AC power supply AC. However, the present invention is not limited to this. For example, a weak signal waveform that hardly affects the entire waveform is added. There may be. Furthermore, in each of the above embodiments, the load 2 is described as a lighting device, but the present invention is not limited to this, and it goes without saying that other loads may be used.

[0025]

According to the present invention, the control signal is transmitted using the power supply line for supplying power to the load. Therefore, there is no need to provide a signal line, and since there is no part of the power supply waveform of the load where the waveform is deleted, stable power can be supplied to the load.

According to the invention described in claim 8, in addition to the effect of the invention described in any one of claims 1 to 7, flickering of the lighting device as a load is eliminated.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of a remote control device of the present invention.

FIGS. 2A and 2B are diagrams for explaining a signal transmission state of the above, wherein FIG. 2A is a voltage waveform diagram of an AC power supply, FIG. 2B is an output waveform diagram of a waveform processing unit, and FIG. 2C is a load applied to a power supply line. FIG. 7 is a power supply waveform diagram to the power supply.

3A and 3B are diagrams illustrating a signal transmission state of a remote control device according to a second embodiment of the present invention. FIG. 3A illustrates a voltage waveform diagram of an AC power supply, FIG. 3B illustrates an output waveform diagram of a waveform processing unit, (c) is a waveform diagram of the power supply to the load applied to the power supply line.

4A and 4B are diagrams illustrating a signal transmission state of a remote control device according to a third embodiment of the present invention, wherein FIG. 4A is a voltage waveform diagram of an AC power supply, FIG. 4B is an output waveform diagram of a waveform processing unit, (c) is a waveform diagram of the power supply to the load applied to the power supply line.

FIG. 5 is a configuration diagram showing a fourth embodiment of the remote control device of the present invention.

6A and 6B are diagrams for explaining a signal transmission state of the above, wherein FIG. 6A is a voltage waveform diagram of an AC power supply, FIG. 6B is an output waveform diagram of a waveform processing unit, and FIG. 6C is a load applied to a power supply line. FIG. 7 is a power supply waveform diagram to the power supply.

7A and 7B are diagrams illustrating a signal transmission state of a conventional remote control device (first conventional example), where FIG. 7A is a voltage waveform diagram of an AC power supply, FIG. 7B is an output waveform diagram of a waveform processing unit, and FIG. c) is a power supply waveform diagram to the load applied to the power supply line.

8A and 8B are diagrams for explaining a signal transmission state of another conventional remote control device (second conventional example), where FIG. 8A is a voltage waveform diagram of an AC power supply, and FIG. 8B is an output waveform diagram of a waveform processing unit. And (c) is a waveform diagram of the power supply to the load applied to the power supply line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power supply line 2 Load 3 Control master unit 3a Waveform processing unit 3b Waveform calculation unit 4 Control terminal 4a Signal extraction unit 4b Load control unit

Claims (8)

[Claims] 1. A control base unit for appropriately processing a part of an AC voltage applied from an AC power supply to a load via a power supply line into a control signal for the load and transmitting the control signal, and the control base unit and the power supply A control terminal connected via a supply line and having a control terminal for extracting the control signal with a signal extraction unit, transmitting the control signal to a load control unit, and controlling the load, wherein the control base unit includes the AC A waveform processing unit that processes a voltage waveform of a power supply into a different waveform having substantially the same amplitude and cycle; and a waveform calculation that replaces at least a part of a waveform in a predetermined section of the AC voltage waveform with the different waveform and outputs the waveform to the load. And a remote control device. 2. The remote control device according to claim 1, wherein the different waveform is a waveform having a different phase from a voltage waveform of the AC power supply. 3. The remote control device according to claim 1, wherein the different waveform is a full-wave rectified waveform of a voltage waveform of the AC power supply. 4. A control signal extracting section of the control terminal extracts a control signal on the assumption that a voltage waveform input via the power supply line is different from a waveform immediately before in each cycle, as 1 4. The method according to claim 1, wherein:
The remote control device according to claim 1. 5. A signal extracting unit of the control terminal sets a control signal as 1 when a voltage waveform input through the power supply line is different from a voltage waveform of the AC power supply in each cycle. 4. The remote control device according to claim 1, wherein the remote control device is extracted. 6. The remote control device according to claim 4, wherein the control terminal controls the load by counting the number of consecutive ones. 7. The remote control device according to claim 4, wherein the load control section controls the load using a control signal transmitted from the signal extraction section as a digital signal. 8. The remote control device according to claim 1, wherein the load is a lighting device.