JPS6181143A - Indoor load controller - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention superimposes a control signal frequency on a commercial power supply frequency using an indoor power line by operating a transmitting device equipped with an oscillator and connected to an electrical device. A receiving device equipped with a receiver receives the received information, and controls energization of electrical equipment connected to the receiving device. In particular, an indoor load control device (indoor load control device) that prevents the breaker from turning off because the total current consumption of the rain load exceeds the rated capacity of the household breaker when electrical appliances connected to the indoor power line are turned on at the same time.
The following concerns #).

BACKGROUND OF THE INVENTION Recently, there are various electrical appliances in homes, and as a result, current consumption tends to increase. For this reason, the capacity of the breaker is insufficient, so the breaker is replaced to increase the rated capacity, but this is not an economic burden, and there are very few times when many devices are used at the same time. However, most of the time the breaker is used at a fraction of its rated capacity, which is extremely uneconomical.

Furthermore, the number of recent electrical products that use microconverters inside is increasing, and some products have clock functions, timer functions, and even input necessary programs, and these can be used once the player is turned off. Then, all the settings will be cleared and you will have to redo these settings to get the same operation, which is extremely troublesome.

Problems to be Solved by the Invention For this reason, users manually turn off other electric devices to avoid turning off the breaker when turning on the electric device they are trying to use.
Sometimes I forget to turn off the main equipment, which is extremely troublesome. Therefore, users are forced to increase the rated capacity of the breaker, even though they are aware of the uneconomical consequences.

Means for Solving the Problems The present invention has been made to solve the above-mentioned drawbacks, and even if equipment connected to the indoor power line is used at the same time, the breaker will not turn OFF.

To obtain a device which automatically controls energization to an electrical device connected to a receiving device when the electrical device connected to a transmitting device is in operation, so that there is no need to worry about turning off a breaker. For this purpose, switching means for controlling energization to both devices are connected in series to the electrical devices connected to both devices, respectively, and when the electrical device connected to the transmitting device is in operation, the electrical devices connected to the receiving device are connected in series. The configuration is such that energization is controlled.

By doing so, while the electrical equipment connected to the transmitting device is operating within the rated capacity of the breaker, the electrical equipment connected to the receiving device is not energized.

Example Two embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a connection diagram of nine devices of the present invention, in which 1 is an indoor power line input section, 2 is a breaker, 3 is an indoor power line, 4,
5 is a pair of transmitting device and receiving device. 6 and 7 are electrical devices connected to the transmitting device 4 and the receiving device 5, and the electrical device B has a higher usage priority than the electrical device 7.

2 and 6 are block diagrams of the transmitting device 4 and the receiving device 5, respectively, and FIG. 5 is a pressure waveform diagram of the code signal for each division.

In Fig. 2, 8 is a current sensor that detects the current of electrical equipment B, 9 is a switching means such as a relay that turns ON and OFF the electrical equipment 6 and is connected in series to the electrical equipment B, and 10 is a high frequency coupling The circuit is tuned to the carrier frequency of the control signal superimposed on the indoor power line 3.

Reference numeral 11 denotes an amplifier circuit for amplifying the signal from the current sensor 8, which amplifies the signal to a level required by the code generation circuit 12. The code generation circuit 12 generates a specific code when a signal is input from the amplifier circuit 11, and this can be done using a currently commercially available IC or a microcomputer. It is something. Reference numeral 13 denotes an oscillation output circuit, which outputs a high frequency wave only when a code is generated. Therefore, the output of the oscillation output circuit 13 has a waveform in which the high frequency wave is modulated by the code signal. This situation is shown in FIG. (a) in FIG. 4 is the code output waveform output when a signal is input to the input of the code generation circuit 12, and (bl is the output waveform of the oscillation output circuit 13).

The output waveform is applied to a high frequency coupling circuit 10 to be tuned to the oscillation frequency of an oscillation output circuit 13, and is coupled to an indoor power line via impedance conversion means such as a transformer. Further, in FIG. 2, 14 is an amplifier circuit, 15 is a code decoding circuit, and 16 is a ζ word drive circuit.

FIG. 5 shows a receiving device, and the same numbers as those in FIG. 2 in the two figures indicate the same components as described above, so a description thereof will be omitted.

17 is a switching means for turning on and off the electrical equipment 7, which is connected in series with the electrical equipment 7; 18 is an opening/closing means for turning on and off the electrical equipment 7
N. Detection circuit that detects and outputs the OFF state, 19
is a delay circuit provided in the transmitting device 4.

Although the configuration of the present invention is as described above, the operation will be explained first.

In FIG. 1, the electric equipment 7 or the electric equipment 6 is
When the switch is N or OFF, the opening/closing means 9 and 17 are in a conductive state, so they are energized. All electrical equipment 7 is O
It is assumed that the electrical equipment 6 is in the OFF state. At this time, when the electrical equipment 6 is turned on, this electrical equipment 6
A current flows through the current sensor 8 due to the conduction, and this output signal is applied to the input of the amplifier circuit 11 and amplified to a desired voltage. This state is shown in f''+5'3 (al).The output of the current sensor 8, which is generated at time 11 as shown in FIG. (A pulse waveform is output at the rising time like bl. When this waveform is applied to the input terminal of the code generation circuit 12, the output of the code generation circuit 12 is outputted as shown in FIG. 4, for example.
It generates a certain code that is a combination of #1" and 0", such as al.

A free code is created by applying a high or low voltage to the external conditions of the code generation circuit 12 or to the terminals of the IC. When this waveform is applied to the oscillation output circuit 13, the circuit 1
3 starts oscillating at a high frequency, and outputs a high frequency voltage modulated by a pulse code as shown in FIG. 4(b). Therefore, the high frequency voltage modulated with this code is applied to the high frequency coupling circuit 10 and then to the indoor power line 5. This situation is shown in FIG. 5(d).

The high frequency 'e and voltage applied to the indoor power line 3 are attenuated by line losses, other electrical equipment connected to the indoor power line 3, etc., as shown in FIG. 5(e), and reach the receiving device 5. The high frequency voltage that has reached the receiving device 5 is applied to the high frequency coupling circuit 10, where the 50/60H2 commercial voltage is removed and the 5th
The waveform shown in FIG. 3(e) is applied to the amplifier circuit 14. The circuit 1
4 amplifies the waveform shown in FIG. 5(e) to a predetermined size, and then detects the waveform in the detection circuit built in the amplifier circuit 14 and shapes the waveform, so that the output is as shown in FIG. 5(fl). This waveform is the same as that of cl, and after all, the code of FIG. If it is the same as the predetermined code, this circuit 15
generates an output waveform similar to (gl), so by adding this waveform to the power drive circuit 16, the switching means 1
7 is operated to control the contacts 17A of the opening/closing means 17, and the contacts 17A are opened while the electrical equipment 6 is in operation. When the detection circuit 18 detects the state of the opening/closing means 17 and drives the code generation circuit 12 with the signal, a code is generated at the output of the circuit 12 for the same reason as mentioned above.
This code is different from the code issued from the above-mentioned transmitting device 4 in the combination of 1"#ON, and is distinguished from the above-mentioned code. This code is generated when the opening/closing means 17 operates reliably. The code is modulated by the oscillation output circuit 13 in the same manner as in the case of the transmitter B, and is shown in FIG.
i) and is applied to the indoor power line 3 through the high frequency coupling circuit 10. The high frequency voltage applied to the indoor power line 3 reaches the transmitting device 4 after being attenuated again by line loss, electrical equipment, etc. Generally, the high frequency voltage is transmitted from the receiving device 5 to the transmitting device 4 hair/sample to indicate that the receiving device 5 has reliably cut off the power to the electrical device 7 in response to a signal indicating the operation of the electrical device 6 issued from the transmitting bag #4. Send a back signal.

The signal is transmitted to the high frequency coupling circuit 10.1 in the transmitting device #4. After passing through the amplifier circuit 14, the waveform shown in FIG.
5 and is the same as the code generated by the code generating circuit 12 of the receiving device 5.

The output will be "high", but if they are not the same, the output will not be output, so it will be "low".

On the other hand, the output of the amplifier circuit 11 of transmitter 1 #B is shown in Fig. 5(b).
However, the high frequency voltage is applied to the delay circuit 19. Since the delay circuit 19 is composed of, for example, a one-way multivibrator, the output of the delay circuit 19 has a waveform as shown in FIG. 5(n). At this time, if the correct code is input to the input of the code decoding circuit 15, the output of the circuit 15 will be as shown by the solid line in FIG. A waveform as shown by the solid line in the same figure (E) is added. Therefore, no output is output from the AND circuit 15B. Therefore, the power drive circuit 16 is not energized, and the opening/closing means 9 operated by this keeps the contact 9A closed, so the electric equipment 6 connected to the two transmitting necks 4 continues to operate, and during this time the receiving device Since the electrical equipment 7 connected to the breaker 5 temporarily interrupts its operation, the electrical equipment 6 and 7 will not operate at the same time. It will not go over and shut off.

On the other hand, the answerback signal may be attenuated due to indoor power line loss, noise generated from other electrical equipment, etc.
If the signals of 91" and 0" are not transmitted normally, the output of the code decoding circuit 15 of the 1 transmitter ya will not be output, so in this case, the output will be as shown by the dotted line in Fig. 5 (1), and the inverter circuit 15AQ output is inverted, so it looks like the dotted line in Figure i. Therefore, the output of the delay circuit 19 having a waveform as shown in (n) in the same figure and the output of the inverter circuit 15A as shown in the dotted line in (1) in the same figure are added to the input of the AND circuit 15B.
Since the output of the D circuit 15B becomes like (nl), the power drive circuit 16 having a self-holding function is energized and the contact 9A of the opening/closing means 9 is opened.

As a result, the electrical equipment 6 connected to the transmitting device B interrupts its operation at time t3 shown in FIG. 5(a).

Therefore, if the signal is transmitted normally, the electrical device 6 of the transmitting device 4 continues to operate, and the electrical device 7 stops operating.
Also, if the signal is not normal, the electrical equipment 6
operates, but the operation is automatically interrupted at time t3, so the electric devices 6 and 7 will not operate simultaneously for a long time, and the breaker 2 will not be cut off. That is, t
The time from 1 to t3 is several ms to several hundred meters via a high frequency signal.
However, since the operation time of the breaker 2 is generally a thermal response operation, the operation time of the breaker 2 is around this range (several ms to several hundred ms).
) almost never works.

Here, when the operation of the electric device 6 connected to the transmitter 2 ends, the output of the current sensor 8 disappears at time t2 in FIG. The operation of the device 7 is automatically resumed.

Effects of the Invention Above 2 According to the present invention, even if equipment connected to an indoor power line via a transmitting device and a receiving device is used at the same time, the breaker will be turned off. It is possible to obtain a device that automatically performs power supply control to cut off power to electrical devices connected to the receiving device, thereby eliminating the need to forget to turn off nine devices.

[Brief explanation of drawings]

FIG. 1 is a connection diagram of an indoor load control device according to an embodiment of the present invention, FIGS. 2 and 6 are block diagrams related to the configurations of a transmitting device and a receiving device, and FIGS. 4 and 5 are similar to each other. FIG. 3 is a waveform diagram of a code signal for each department.

Claims (1)

[Claims] A transmitting device to which an electrical device is connected and a receiving device that receives a signal indicating the operation of the electrical device from the transmitting device are connected to an indoor power line, and the electrical device connected to the receiving device is energized by the signal. In those controlled by
An indoor load control device characterized by having a configuration in which a switching means (6) is connected in series to an electrical device (6) and a switching means (17) is connected in series to an electrical device (7).