JPS5825017B2 - Okunai High Sensetsuzokukikino Seigiyosouchi - 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 used in indoor wiring in households and businesses has been steadily increasing.However, on the power supply side, there are problems such as grounding equipment, pollution problems, and even more. Due to problems such as the energy crisis, the expansion of facilities and equipment for power supply has not progressed as expected, leading to calls for a power crisis.

Further, the contracted capacity value between each user and the power supply side is determined according to the peak value of each user.

Therefore, the power supply side must have equipment scale that corresponds to this peak value.

Therefore, for the supply side, suppressing the above-mentioned peak value without causing any inconvenience to the users is an effective means to level out the maximum and minimum values of power consumption, increase the operating rate of the equipment, and avoid a power crisis. For the users who provide the service, there are advantages such as a reduction in basic charges.

Conventionally, there is a no-fuse breaker that is relatively similar to this type of equipment.

However, no-fuse breakers turn off all equipment in the indoor wiring when the consumption exceeds the contracted capacity, which is extremely inconvenient, and to avoid this, the contracted capacity must be increased as the number of electrical devices increases.

As a result, consumers themselves experienced inconveniences such as increased construction costs and basic charges, and the suppliers also had disadvantages such as the need to expand their facilities.

This invention was made in order to solve the above-mentioned drawbacks. A control unit is installed in the indoor wiring, and the control unit compares a preset value with the total current consumption value of the operating equipment to determine the current consumption of the equipment to be operated. Check whether the value including the current used falls within the set value, and operate when it is within the set value, and if it exceeds the set value, wait until it falls within the set value or force off devices with lower priority than the device you want to operate. This is how it works.

In the following, explanation will be given using an example at the beginning of the figure.
is an integrated wattmeter, 2 is a breaker, 3 is indoor wiring, 4 is a control unit that controls the operating status of electrical equipment L1 to Le connected to this indoor wiring 3, and 5 is a control signal from this control unit 4 that is connected to the indoor wiring. A coupling inductance R1-Re for feeding the wiring and detecting request signals from the electrical equipment L1-Le is a switch box section that receives and decodes control signals from the control unit 4, and also receives and decodes control signals from the control unit 4. A request signal from the electrical equipment connected to the unit is fed to the indoor wiring to control on/off of the electrical equipment.

Note that different addresses are sequentially added to each switch box Re, and a priority code indicating the priority of the on operation is added depending on the importance of each address.

With such a configuration, the control unit 4 sequentially polls the switch boxes Re to which address codes are attached to exchange messages, which will be explained with reference to FIG.

A is an example of sending a polling address to switch box Re, where 6 is the start code, 7 is the address code, and 8 is the code.

A mode code 9 indicating the operating mode of the control unit 4 (in this case, a code corresponding to the polling mode is entered) is a stop code indicating the end of the message.

The switch box Re that has received this polling indicates the state of the equipment connected to this switch box Re at this point, that is, the ON operation request (request code, ON).
, Has there been a transition from on to off state/＼ since the last polling (request code off) and other than these two states (
A signal code corresponding to one of the states (no request code) is generated and sent back to the control unit 4 in a message format such as b.

In this figure, one of the signal codes of this request code will be placed in position 10.

Further, c, d, and e are examples of response signals that are sent back to the switch box Re from the control unit 4 after receiving the request code from each device Re, and 11 is an instruction code for the request code. 12 indicates an address code for reading out a WAIT device from the WAIT memory and turning it on, which will be described later.

The configuration of the control unit 4 will be explained with reference to FIGS. 3A and 3B.

13 is a memory register 1114 that stores a value proportional to the total current consumption current or power.The memory register 1114 stores a value in proportion to the total sum of current consumption current or power. Memory register 15 stores a value proportional to the total current consumption or power; 15 is a memory register 2 that stores a value proportional to the total current consumption or power of only non-priority devices; 16 is an address register 17 18 is an arithmetic register, mainly memory registers I and II.

19 is a spare register called Y register, 20 is a total adder/subtractor that takes A bus 28 and S bus 29 as inputs and sends its output to S bus 27, 21 is the magnitude of two numbers. The comparison circuit 22 is a reference setting value generation circuit, which is configured so that it can be set freely by the user.

23 is a +1 generating circuit which generates an addend when increasing the polling address by 1.

24 is a decoder that decodes the address of the address register 17, and 26 is a consumption code memory that stores, for each address, the individual consumption proportional value of each device to which an address is attached. The priority code of each device as described above is also stored.

25 is a parallel-to-serial conversion circuit for the output of the consumption code memory, and this output becomes the input to the T register 18.

30. Input buses 32 corresponding to the two inputs of the magnitude comparison circuit 21 are flag flip-flop groups 33 for separating the operation of the control unit into each routine;
On-device address memo 1J34 and 35 store the addresses of devices that are turned on among devices without priority codes in order from oldest to newest. WAIT memory registers are separated and stored in chronological order, and 34 stores addresses without priority, and 35 stores addresses with priority.

36, 37 are the memories 33, 34, and 35, respectively, and an output bus; 38 is a sterilization signal generation circuit that generates control signals for controlling this control unit; The outputs of the circuit 40 and the state counter 39 are respectively input.

Reference numeral 41 denotes a request code receiving buffer from the switch box Re, and it is a matter of course that a part of the flag flip-flop group 32 operates according to this request code.

42 is a demodulation circuit, and 43 is a modulation circuit which modulates the message in the transmission buffer 44 and feeds it to the wiring 3.

45 is a transmission control circuit section, 46 is a fixed code generation circuit that sends a signal code that can be separated according to the operation mode of the control unit to the transmission buffer 44, and 47 is a circuit that generates a response code from the control unit as another fixed code. , 48 is a transmit buffer input bus that collects inputs to these transmit buffers.

The operation of the control unit 4 having the above configuration will now be described for each request code.

First, if there is no request code, there is no need to respond to the request code from the switch box Re, so the outputs of the address register 17 and +1 generating circuit 23 are immediately sent to the bus 28.
29 to the full adder/subtractor 20, and the output thereof is returned to the address register 17. After that, polling is performed using this new address, and the same operation is started for the next device.

Next, when the request code is on, first the consumption code corresponding to this address is read out from the consumption code memory 26 to the T register 18, and the priority code is also read out, which is input into the flag flip-flop group 32 side.

After that, the contents of the memory register 113 and the T register 18 are added, and the contents of the memory register 113 after this addition are compared with the magnitude of the output of the reference setting value generation circuit 22, and the output of the reference setting value generation circuit 22 is larger. When they are equal, the ON mode code is immediately turned on, and the OK mode code is replaced with the response code and fed into the wiring, and the response is returned to the switch box as shown in Fig. 2 C. At the same time, the contents of the T register 18 are stored in the memory registers depending on the presence or absence of this priority. After adding it to 14 or 15, the contents of the address register 17 are incremented by 1 and the process returns to polling the next device.

Conversely, if the contents of the memory register 113 after the addition are smaller than the reference setting value, the subsequent operation flow will differ depending on the presence or absence of the priority code.

That is, if there is no priority code, the contents of the address register 17 are immediately stored in the last position of the WAIT register 34, the T register 18 is subtracted once from the memory register 113, and 1 is added to the address register 17. Return to next poll.

If there is a priority code, first the memory register 15 stores the contents of this T register 18 and the total consumption of devices that are turned on without a priority code.
G) When the T register 18 is larger, the contents of this address register 17 are compared with the contents of the WA I
After being stored in the last memory of the T memory 35, a code corresponding to the WAIT code is returned to this switch box as a response code.

Also, of course, the T register 18 is subtracted once from the memory register 113.

Thereafter, after adding 1 to the address register 7, the process returns to the next polling.

When the T register 18 is smaller or equal, the on device address memory registers 33 are forced to turn off in order from the oldest one, and when there is enough room to turn on the device with this request code on. , cancels this OFF operation, returns an ON OK code as a response code to the device in this address register 17, adds 1 to the address register 17, and returns to the next polling.

Note that at this time, the calculation for updating the memory register 113 is naturally performed.

This operation corresponds to the interrupt operation of a device with priority.

The above is the operation when the request code is turned on.

Next, in the case of the request code being OFF, an OFF confirmation signal is sent back as a response code in order to reset the part in the switch box that remembers that there has been a transition from ON to OFF.

Since the consumption code corresponding to this address is read from the consumption memory and stored in the T register 18, this value is subtracted from the memory register 113 to update the current consumption.

It goes without saying that the contents of memory register (2) and memory register (2) are updated depending on the presence or absence of the priority code.

After this, the subsequent processing methods differ depending on the three combinations of whether or not there is a device in the WAIT state in the WAIT memory register I and the WAIT memory register ■.

That is, the WAIT memory register ll35 is
If there is an address (in this case, WAIT memory 134
It does not matter whether the WAI T address is present or not) and WAI
When there is no WAIT address in the T memory register 35 and there is an AIT address in the WAIT memory 34, and when the WAIT memory register 1. ■34.35 both WA
It is divided into three cases without an IT address.

First, if there is a WAIT address in the WAIT memory register [35], the polling address is once protected in the address sub-register 16, and then the WAIT memory register [35] is saved.
35, the address with the oldest stored time is read out to the address register, the consumption code corresponding to this address is read out, and this is stored in T register 1.
Put it in 8.

After adding the contents of the T register 18 to the contents of the memory register 113, a comparison is made with the output from the reference setting value generation circuit 22, and if the contents of the memory register 113 after the addition are larger than the reference setting value, the memory register Subtract the contents of the T register 18 from I once again, and add 1 to the polling address protected by the address subregister 16.
After addition, return to next polling mode.

Conversely, when the contents of memory register 1 are smaller or equal, the address in this address register and the ON OK response code are returned to the switch box side, and only the address transferred to the address register in WAIT memory register 1135 is sent. After erasing it and adding 1 to the polling address protected in the address sub-register, return to polling mode.

It goes without saying that the contents of the T register 18 should be added to the memory register 114 to update the contents.

Next, if there is no WAIT address in the WAIT memory register 35<WAIT is present in the WAIT memory register I34, in the above operation, the WAIT memory register 35 is replaced with the WAIT memory register I34, and the rest is exactly the same operation. will be carried out.

And finally WAIT memory register I, I34.
If there is no WAIT device in 35, immediately add 1 to the contents of the address register and return to polling mode.

The above is an outline of the operation routine when the request code is turned off.

An example of the configuration of a switch box in which messages are exchanged by the operation within the control unit is shown in FIG. 4, and this operation will be briefly described below.

That is, first, when the control unit receives the mode code and the message shown in FIG. do.

The address code among these is led to the output of the fixed address generation circuit 54 assigned to this switch box and the coincidence detection circuit 53, and only when they match, the control circuit 52 is activated.

When the control circuit 52 enters the active state, it detects which of the three states the equipment Le connected to this switch box is in, and then drives the request code generation circuit 55 depending on the state, and outputs the output. Modulation circuit 5
6 and is fed to the wiring by a coupled inductance 49 as a request code.

After this, the operation of the control unit that receives this message is as described above, and when this process is completed, a response code is returned by wiring, but after storing this in the reception buffer 51, if the mode code in this message is a response code. ,
The response code is decoded and transmitted to the control circuit 52, and based on the response code, this control circuit generates a signal that causes the connected device Ln to perform a predetermined operation.

In the above embodiment, a case has been described in which indoor wiring is shared as a transmission line, but it goes without saying that a dedicated line may be used as a transmission line.

As described above, the present invention adds a priority code to devices connected to indoor wiring, and when there is a device that you want to operate, add the current consumption value of this device and the current total current consumption value, and set the priority code in advance. When the added value is larger than the set predetermined value, the device with a lower priority than the desired operation is forced off and the desired operation device is turned on, so that the added value is always within the specified value and Since it is possible to start operation from the device with the highest priority, it does not turn off all devices when a predetermined value is exceeded, unlike conventional no-fuse breakers, and it also allows contracted capacity to be set up in preparation for short-term peak values. There is no need to make it large.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing an embodiment of the present invention, Fig. 2 is a schematic explanatory diagram of messages exchanged between a control unit and a switch box, and Figs. 3 a and b are blocks showing the configuration of the control unit. 4 are block diagrams showing the configuration of the switch box. In the figure, the same symbols indicate the same parts, 3 is indoor wiring, 4 is a control unit, 13 is a memory register, 20 is a full adder/subtractor, 21 is a comparison circuit, 22 is a reference setting value generation circuit, and 26 is a consumption code. Memory, 33 is an on-device address memory register, 44 is a transmission buffer, 45 is a transmission control circuit, 51 is a fixed address generation circuit, 52 is a control circuit, 53 is a coincidence detection circuit, 55 is a request code generation circuit, L1 to Le are Electrical equipment, R1-Re is the switch box section.

Claims (1)

[Claims] 1. Store the addresses of multiple electrical devices connected to the indoor wiring, and store the address, priority code, and power consumption of each of the electrical devices and the switch box provided between the device and the indoor wiring. A consumption code memory, a memory register that stores the total power consumption of the electrical devices currently in use among the plurality of electrical devices, and a memory register that stores the priority code and on-time order of the electrical devices currently in use. On-device address memory register According to the memory value of the memory register and the polling signal, calculate the consumption amount corresponding to the address signal of the device that is desired to operate among the electrical devices sent from the switch box section. An adder that reads and adds from the consumption code memory, a comparator that compares the output of this adder with a predetermined value, and this comparator causes the output of the adder to be higher than the predetermined value. When the value is large, the sum of the consumption amounts of electrical devices that belong to a lower priority than the device polled by the adder and are currently on is calculated from the on-device address memory register, and this total value and the polled device are The above comparator compares the consumption amount of the electrical equipment that received the power consumption, and when the former is greater than the latter, the electrical equipment is forced to turn on in order from the one with the lowest priority and the oldest on time until the electrical equipment can be turned on. A control device for indoor wiring connection equipment, comprising a control unit comprising an oscillator that generates a signal to turn off the device in accordance with the output of the comparator.