JPS5825018B2 - Okunai high sense settsuzokukikino - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device that controls the connection of electrical equipment to a power source so that the total current consumption or total power consumption flowing through indoor wiring is within a preset value.

In recent years, due to the spread of electrical appliances and the development of various new electrical devices, the amount of electricity consumed by indoor wiring in homes and businesses has been increasing. Furthermore, due to issues such as the energy crisis, the expansion of equipment for power supply has not progressed as expected.
There are growing calls for an electric power crisis.

In addition, the contracted capacity value between each user and the power supply side is usually determined according to a value proportional to the peak value of each user, and therefore the power supply side has to install equipment according to this peak value. It is something that must be scaled up.

Therefore, for the supply side, suppressing the above-mentioned peak value without causing any inconvenience to the users is one way to level out the highest and lowest power consumption values, increase the operating rate of the equipment, and furthermore avoid power crises. It provides an effective method, reduces basic charges for users, and allows users to use each piece of equipment without having to carry out construction work to increase the contracted capacity even when the number of equipment increases. This brings about advantages such as making it possible to

Conventionally, no-fuse breakers have been relatively close to devices that provide this type of advantage, but these are extremely inconvenient because they turn off all equipment in the indoor wiring when consumption exceeds the contracted capacity. To avoid this, users need to increase their contracted capacity as the number of electrical devices increases.

As a result, consumers themselves experience inconveniences such as increases in construction costs and basic charges, and also for the supply side.
There were drawbacks such as the need to expand equipment.

This invention was made to solve the above drawbacks.
A control unit is connected to the indoor wiring, and the control unit compares the preset value with the total electricity consumption of the operating equipment, and operates only when the set value is not exceeded even when the equipment you want to operate is operated. In a device that sends a signal to the device from a control unit to OK the device, and also sends a signal to the device to wait for operation when the device exceeds the limit, a circuit for issuing an operation request on the device side is configured with a flip-flop, By performing this reset only with the operation OK signal from the control unit, a function is provided that automatically enters the operating state when there is a gap in the consumption amount.

The present invention will be described in detail below with reference to the drawings.

In FIG. 1, 1 is an integrated wattmeter, 2 is indoor wiring, 3 is a control unit that controls the operating status of electrical equipment L1 to Ll connected to indoor wiring 2, and 4 is a control signal from this control unit 3. A coupling inductance, R1, for feeding the signal line (in this figure, it is shown as a power line carrier that uses indoor wiring as a signal line) and for detecting the request signal sent from the electrical equipment L1 to Ll side. -R1 is a switch box section, which receives and decodes the control signal from the control unit 3, and also feeds the request signal of the electrical equipment connected to this switch box section to the indoor wiring, so that the electrical equipment It controls on/off.

Note that different addresses are sequentially added to each switch box Rn (l≦n≦2) by l.

An example of the configuration of the control unit 3 is described in detail in the earlier application (Japanese Patent Application No. 119646/1982), and its basic functions include a set value generation circuit, a current consumption amount indicating section, and , a comparison circuit for these two values, a function to transmit a corresponding instruction code to the switch box based on the comparison result, and a function to receive a request code from the switch box.

In the device configured as described above, the control unit 3 sequentially polls the switch box Rn section to exchange information, but only the part related to this invention of this method is shown in FIG. ing.

That is, 5 is a specific example of a polling message, 6 is a start code part thereof, 7 is a polling address part in which an address code for polling is placed, 8 is a code part in which a mode code indicating that the message is in a polling state is placed, and 9 is a stop code section.

When this polling message is first injected from the control unit 3 to the wiring 2 via the coupling inductance 4, this signal is received by the switch boxes R1 to R7, and the address corresponding to the polling address sent therein is received by the switch boxes R1 to R7. The switch box that has entered the active state (let's say Rn) immediately wants to turn on the state of the connected device Ln, or has changed from the on state to O since the previous polling.
Has it transitioned to FF state, or is neither of these three?
11 parts of the request code corresponding to one of the three are sent back to the control unit 3 from the switch box Rn in a configuration as shown at 10.

Here, the present invention can be explained only by explaining the case for the ON request, so only this case will be explained.

Therefore, when the control unit 3 receives this request code, it decodes the request code and, in the case of an on request, first turns on the iLn of the device and determines whether or not it exceeds the separately set setting value. As a result, a message as shown in 12 is returned as an instruction code to the switch box Rn that is being polled.

If this judgment does not cause an overflow, enter an ON OK code in section 13, and if it does, enter a WAIT command code, and modify a code in mode code 14 to indicate that the message is a command message. It is transmitted from unit 3 to switch box Rn.

When this command code is received, the switch box Rn enters the operation of its main circuit for the first time, and starts the operation of controlling the power-on transition of the equipment Ln connected thereunder.

This operation will be explained according to an embodiment of the circuit shown in FIG.

This figure shows an example of the circuit of the switch box section, where 16 is a received signal detection amplification/demodulation section, 17 is a reception buffer, and messages sent from the control unit 3 are stored here.

18 is an address code part, this output becomes one input of the coincidence detection circuit 22, a coincidence is detected with the output of the fixed address generation circuit 21 of the switch box, and only when there is a coincidence, this switch box is activated. The authorization circuit 23 is operated.

Also, 19 is the mode code for polling messages,
When it is a command message, a mode code and an instruction code are input, and this output is decoded by the decoder 20, and when polling, this output is sent to the request code generation circuit 24.
will be communicated to.

Reference numeral 26 denotes a switch that is turned on when it is desired to turn on the device Ln, and may be turned on automatically without manual intervention, such as in the case of a temperature control contact in an air conditioner, for example.

This output is pulled down by a resistor 27 and connected to the set side input of a flip-flop (hereinafter referred to as F/F) 28, so when the switch 26 is turned on, F/F 2 B
will be set.

This l side output is input to the request code generation circuit 24, which is also inputted with the above-mentioned output indicating the polling state and the output indicating the authorization state, that is, the output of the authorization circuit 23. .

Therefore, when the F/F2B is set and matches the polling address, the ON request code is sent back to the wiring 2 via the transmitting amplifier 29 and through the coupling inductance 4.

An example of this message corresponds to FIG. 2, 10.

Note that if the F/F 28 is not set, it is natural that a code other than the ON request code is returned to the control unit 3.

In response to this request code, the control unit 3 sends an instruction code as described above, and this instruction is also set in the reception buffer 17 once.

However, the instruction code is stored in 19 along with the mode code.

Therefore, when an ON OK command is sent from the control unit 3 in response to an ON request, this output is sent to the decoder 2.
0 and ANDed with the output of the authorization circuit 23.
Through the gate 25, the ON request F/F 2B is reset, and the main circuit control unit 30 is operated to close the contact 31, and this contact output is input to the device Ln, which is turned on. Ru.

In addition, in the case of a WAIT command, the authorization circuit 23
0'' state, and since the decoder 20 does not produce an output during the WAIT command, the ON request F/F 28 is not reset and the main circuit control section 30 also remains stopped.

Therefore, when polling is received for an on request and the consumption is full, a WAIT will occur, but this on request will remain alive, so when polling occurs at an appropriate cycle thereafter, it will automatically wait. The on request will continue to be issued, and once the on switch is pressed, a function will be configured to automatically turn on the device Ln when a space becomes available even if WAIT is returned.

As described above, the present invention electrically connects a control unit to the indoor wiring as a centralized control device for a group of wire-connected devices, and allows the control unit to set the allowable amount of electricity consumed. The total electricity consumption is taken into the above control unit, this set value and the total consumption are constantly compared, and operation is OK only when the set value is not exceeded even when the device you want to operate is operated.
In a device that sends a signal to the device from the control unit and a WAIT signal that causes the device to wait when it exceeds, the circuit part that issues the ON request from each device is a flip-flop for each device. A circuit is configured to send the contents of this flip-flop back to the control unit as a request code, and the reset input of this flip-flop is reset only by the ON OK signal of the instruction code sent from the control unit. Since the controller is equipped with a circuit configured to prevent the WAI from being reset, the WAI
There is a device that remembers the address of the switch box that was turned on in the T state and transitions from the on state to the off state.
Compared to a system that automatically reads out the address of the WAIT device and turns it on when a free space becomes available, in this case, the memory for the address code is expensive, and the polling process also costs more. Although there are drawbacks such as complication of the routine due to the insertion of cycles, the present invention does not have such drawbacks, and the peak cut and standby functions can be controlled quite easily.

In the above explanation, the F/F 28 has been explained, but this part is no different in a composite circuit of relay contacts as long as it has an F/F configuration.

[Brief explanation of drawings]

Figure 1 is a system configuration diagram of this invention, and Figure 2 is the system configuration diagram of this invention.
FIG. 3 is a schematic diagram showing the main parts of the message exchange shown in the figure, and FIG. 3 is a block diagram showing the main parts of a configuration example embodying the present invention. 2 is indoor wiring, 3 is a control unit, 4 is a coupled inductance, and 16 is a received signal detection amplification. Demodulator, 17 is a reception buffer, 20 is a decoder, 21
22 is a fixed address generation circuit, 22 is a coincidence detection circuit, 23 is an authorization circuit, 24 is a request code generation circuit, 28 is a flip-flop, L1 to Ll are electric devices, and R1 to R1 are switch box sections.

Claims (1)

[Claims] 1. A control unit is electrically connected to the indoor wiring as a centralized control device for a group of wire-connected devices, and the allowable amount of electricity consumed can be set within this control unit, while the total amount of electricity consumed by this indoor wiring can be set in the control unit. This set value is compared with the total consumption at appropriate intervals, and only when the set value is not exceeded even when the device to be operated is operated, a signal is sent from the control unit to the device to allow the operation. In addition, in a device that sends a WAIT signal to a device to make it wait when the operation is over, the circuit part that issues an ON request from each device is configured as a flip-flop for each device, and the contents of this flip-flop are used as a request code. It has a circuit that returns the signal to the control unit, and resets the reset input of this flip-flop only by the ON OK signal sent from the control unit.
A central control device for indoor wiring connection equipment, characterized in that it is configured so as not to be reset.