JPH02123925A - Electric equipment controlling system and adapter - Google Patents

Abstract

PURPOSE:To prevent a power breaker from cutting off even if a plurality of electric equipment is connected to the same power supply by outputting the priority signal of a load and the total power consumption signal to the same power system. CONSTITUTION:When a laser facsimile is going to use a heater, an electric equipment 4 inspects the power consumption sum of a power system 1 and the priority (step 1) as to whether the electric power is available or not. In case there is surplus power and it is available, and when a buffer or a storage device has receiving data, the receiving data is read out to print (S2, S3, S4, S5 and S6). The print is finished (S7). In case the power is not available (S1), it waits until there is surplus power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control system for electrical equipment such as copying machines and facsimile machines.

[Prior Art] Conventionally, for example, when a copying machine is connected to a power supply system, if the total power consumption of the copying machine becomes excessive, the voltage drop in the wiring section becomes large, or the power supply exceeds the rated power of the power supply, causing a power breaker. Various problems such as - burnout occur, so in order to prevent this, a device has been devised to prevent the fixing heater and exposure lamp from being turned on at the same time (Japanese Patent Laid-Open No. 57-2
(See Publication No. 11164).

[Problems to be Solved by the Invention] However, such devices are implemented within a single copying machine, and the relationship with other copying machines is considered independently. is connected,
The problem of the power supply breaker tripping could not be solved. That is, when the rated power of the power supply is 1500 W, if two photocopiers with a maximum power consumption of 1000 W are used, the breaker may trip.

In view of the problems with conventional power control methods, an object of the present invention is to provide an electrical equipment control method that does not cause the power breaker to trip even when multiple electrical equipment is connected to the same power source. do.

[Means for Solving the Problems] The present invention as claimed in claim 1 provides an electrical equipment control system for electrical equipment connected to the same power supply system, in which a predetermined power source is supplied in advance to supply power to a predetermined load of the electrical equipment. Examine the power consumption signal of each electrical device existing in the grid, determine whether power can be supplied to the predetermined load based on it, and if possible, supply power to the predetermined load and add the power of the predetermined load. If the power consumption signal of the electrical equipment cannot be supplied to the power supply system, the priority signal of that load is output to the power supply system, and the above-mentioned operations are repeated after a predetermined period of time has elapsed. Repeatedly, each electrical device always checks the priority signal present in its given power supply system, and if it is supplying power to a load with a lower priority than that priority within that electrical device, it will supply power to that load. The present invention according to claim 2 is an electrical equipment control method characterized in that, in an electrical equipment control method for electrical equipment connected to the same power supply system, when supplying power to a predetermined load of the electrical equipment, , outputs the power consumption signal of the electrical equipment to which the power of the predetermined load has been added in advance to the power supply system, checks the power consumption signal of each electrical equipment in the predetermined power supply system, and supplies power to the predetermined load based on the power consumption signal of each electrical equipment in the predetermined power supply system. If it can be supplied, power is supplied to the predetermined load, and if it cannot be supplied, the power consumption signal of the electrical equipment with the power of the predetermined load reduced and the priority signal of the load are sent to the power source. After a predetermined period of time has elapsed, each of the above-mentioned operations is repeated again, and each electrical device always checks the priority signal present in the specified power supply system, and outputs a load with a lower priority than that priority within that electrical device. This electrical equipment control method is characterized in that if power is being supplied to the load, the supply of power to that load is stopped.

The present invention according to claim 6 provides a power supply system that is connected to a predetermined electric device, and when supplying power to a predetermined load of the electric device, a power consumption signal of each electric device existing in the predetermined power supply system is detected in advance. Based on this, it is determined whether power can be supplied to the predetermined load, and if it is possible, power is supplied to the predetermined load, and the power consumption signal of the electrical equipment with the power of the predetermined load is added to the power supply. If it is not possible to output power to the grid and supply power to the specified load,
The priority signal of that load is output to its power supply system, and after a predetermined period of time, each of the above operations is repeated again, and each electrical device always checks the priority signal that exists in its specified power supply system, and then outputs its priority signal within that electrical device. A device that stops supplying power to a load with a lower priority if it is supplying power to that load, and can arbitrarily set the power consumption and priority of the load of connected electrical equipment. This adapter features a switch.

The present invention according to claim 7 provides a power supply system that is connected between a power supply system and a predetermined electrical equipment, and when supplying power to a predetermined load of the electrical equipment, the power of the predetermined load is previously added. When the power consumption signal of the electrical equipment is output to the power supply system, the power consumption signal of each electrical equipment in the specified power supply system is checked, and based on that, it is determined whether or not power can be supplied to the predetermined load, and the power can be supplied. The system supplies power to the predetermined load, and if the power cannot be supplied, outputs the power consumption signal of the electrical equipment that reduces the power of the predetermined load and the priority signal of the load to the power supply system, and after a predetermined time elapses, the above-mentioned By repeating each operation again, each electrical device always checks the priority signal present in its predetermined power supply system, and if the electrical device is supplying power to a load with a lower priority than that priority, it This adapter is a device that stops supplying power to a load, and is characterized by being equipped with a switch that can arbitrarily set the power consumption and priority of the load of connected electrical equipment.

[Function] In the present invention, the electrical equipment connected to the power supply system,
The power consumption signal and the priority signal are manually generated, and based on them, the power control of the load provided by itself is performed, and the priority signal and the total power consumption signal of the load are output to the same power supply system.

[Examples] The present invention will be described below based on drawings showing examples thereof.

FIG. 1 is a wiring diagram of an embodiment of the electrical equipment control system of the present invention, and FIG. 2 is a more detailed block diagram of the embodiment.

In the figure, 1 is a power supply system, 2 is a power supply, and 4 is each electrical device. The electrical equipment 4 includes the following means.

That is, for example, in the case of a copying machine, there are various loads 44,45, etc. such as an exposure lamp and a fixing heater. Also,
The signal input circuit 41 manually inputs the power consumption signals of each electrical device 4 existing in the power supply system 1, calculates the total, and also inputs the priority signal if the power supply system 1 has a priority signal. be. The load control circuit 42 receives the signal output from the signal input circuit 41, and as described later, sums up the priority of the load to be turned on, the power consumption phase, and the power of the load, and thereby calculates the rated power. This means checks whether the power exceeds the power limit, and if there is a margin, turns on the load within the power margin, and performs load control such as outputting the priority signal. Furthermore,
In the figure, when supplying power to a load, 43 indicates a priority signal of the load to the power supply system l;
This is a signal output circuit for outputting a signal of the total power consumption of the electrical equipment including the power of the load. Note that the electrical device 4 is equipped with a switch that can freely set the rated power of the power supply system to which it is connected.

As the power consumption signal WID, for example, a signal obtained by appropriately modulating the amplitude and frequency of a 1 KHz high frequency signal or a pulse signal is used.

FIG. 3A is a flowchart showing the operation of the above embodiment.

Now, assume that the two devices 1 and 2 are connected to the same power supply system, and the rated power of that system is 1500W. Roughly speaking, the priority types are O to IO. Priority 10 is the highest priority. As for the priority O signal, a signal to that effect may be outputted, but no priority signal may be outputted at all.

Here, the signal input circuit 41, the load control circuit 42, and the signal output circuit 43 perform control to -boat fishing as shown below.

When trying to turn on the load i (step St), first, the power consumption signal WI of each electrical device existing in the power supply system 1 is
The sum of D (Ws) and the power consumption (Wi) of the load that is about to be turned on are summed and compared with the rated power of 1500 W (step S5). If there is a margin, do not output the priority and add that Wl to the WI of the electrical device.
D is output (step S7). Then, load i is turned on (step S8).

If there is no margin (step S5), the priority Pi is output to the power supply system (step S6). Then, it waits until there is sufficient power (step S5). The waiting time may be changed each time using a fixed time or a random number.

If the pond tries to turn on load 0 while turning on load 1, and there is no margin, a priority signal (Po) is output, but when compared with the priority signal, it is determined that P1≧PO. If so, the game is winning, so load 1 is left on (step 510). if,
If the priority is lost (step 510), the load l is turned off (step 511). Then, WID with the power consumption Wi reduced is output again (step S
l2) Also, when the device no longer needs to keep load 1 on, it turns off the load (step 5ll).

Then, if priority Pi is being output (step S13), it is stopped (step 514).
.

Note that the flow to the north is focused on load 1,
If load j is generally turned on (step Sl
), if another load O tries to turn on and there is no margin, the priority PO is output, so if Pj≧Po, the status quo is maintained, as in the case of load failure.
If not, then step 11. S12.
S13 and S14 are executed (step S4). Note that the execution of step S4 is indicated by changing J to 1 on the flowchart.

FIG. 3B is a flowchart showing the flow of other operations in the same embodiment. The explanation will focus on the differences from the case of FIG. 3A. That is, as shown in the figure, before checking the power consumption signal, the power consumption of the load to be turned on is first added and output (step 7), and then the total power consumption Ws is checked (step 7). S5). As a result of that investigation,
If power cannot be supplied, a priority signal Pi is output (step 56). If power is available,
Turn on the load l without outputting the priority signal (
Step S8).

In this embodiment, the total power consumption signal may be created by changing the frequency of the carrier signal itself without modulating it.

FIG. 4 is a flowchart showing an example of the operation when a copying machine is used as the electrical device of the present invention.

In the figure, when the copying machine attempts to use the fixing heater, etc., the electrical equipment 4 checks whether the power consumption is possible or not from the power supply system 1 beforehand. Check the sum Ws and the priority (step Sl). Then, if it can be used (step S
t), displaying a copy execution permission display (step S2)
, drive the heater. Then, copying is performed (S3.S4.S5). On the other hand, if it is not possible to use the copying machine, in step S1), an LED element or a liquid crystal element is used on the operation panel of the copying machine to display that copying is not possible (step S6). Note that if power cannot be used during single-shot copying, copying continues without turning on the heater and checks again to see if power is available.

FIG. 5 is a flowchart 1 showing an example of the operation of the data printing section when a laser facsimile is used as the electrical device of the present invention.

In the figure, when the laser facsimile attempts to use the heater, the electrical equipment 4 checks the power consumption phase Ws and priority of the power supply system I to see if it is possible to use the power (step Sl). . Then, if the power is available and can be used, if the received data is in the buffer or storage device, the received data is read out and printed (steps S2, S3.S4.S5.S
6).

Then, printing is ended (step S7). If it cannot be used (step St), wait until there is room.

FIG. 6 is a flowchart showing an example of the operation of the data receiving section when a laser facsimile is used as the electrical device of the present invention.

If the data is being received (step Sl), the data is saved in the buffer if there is space in the buffer (steps S2 and S3); if there is no space in the buffer, the data is saved in an auxiliary storage device such as a hard disk or ram disk (step S
4). Note that during reception printing, only the page being printed continues to be printed with the heater off, and the remaining data is stored in an auxiliary storage device such as a hard disk or a ram disk.

Note that while transmitting, it continues to transmit and checks whether power is available.

Also, check whether power is available even during standby.

FIG. 7 is a flowchart showing an example of the operation of the data processing section when a laser printer is used as the electrical device of the present invention.

In the figure, if there is data in the reception buffer (step Sl), then the data is read out (step S2),
If there is a printing request (step s: 3), when the laser printer attempts to use the heater, it first checks to see if power is available, and if it can, turns on the heater (step s4). The received data is printed (step S5). If power is not available (step S4), wait until it becomes available.

FIG. 8 is a flowchart showing the operation of the data receiving section. If the buffer is full (step S1), the host computer is caused to stop transmitting data (step S3). Then, printing is prohibited. If there is space in the buffer (step S1), transmission from the host computer is permitted (step S2). Then, the data is received and written to the reception buffer (step S
4°S5).

Note that if the heater cannot be used but printing is in progress, only the page currently being printed is printed, and the remaining data is stored in a buffer if there is room.

If power is not available and the printer is not printing, printing is not performed and the data is stored in the buffer as described above.

FIG. 9 is a block diagram showing one embodiment of the adapter of the present invention.

In the figure, 93 is an adapter, which includes a plug 92 connected to the outlet (outlet) 91 of the power supply system 1, the signal input circuit 41 of the above embodiment, the load control circuit 42, the signal output circuit 43, and the rated power setting. It includes a main body that performs the same function as a switch or the like, and an outlet 94 connected to the main body. 99 is a device that consumes a large amount of power, such as an electric heater, and furthermore, the device can be controlled by the plug section. 98 is a plug portion of the electric heater. Furthermore, this adapter is equipped with a switch that can set the power consumption and priority of the load of the connected electrical equipment. Depending on its settings, the load is removed by RTF,
power and priority can be recognized by the adapter.

Next, the operation of the adapter of this embodiment will be explained.

The adapter 93 checks the total power consumption and priority of the power supply system I. If there is priority and there is room, power is supplied to the electric heater 99.

Then, after a predetermined period of time has elapsed, the power supply is stopped. Then, the power consumption Ws and the priority are checked again. If other electrical equipment is not in use, power to the electric heater 99 is restarted as described above.

Note that it is also possible to first output a power signal to which its own power consumption has been added, and then check.

In this way, even if you want to use an ordinary electric device such as an electric heater that does not check the priority or total power consumption signal with the same power source, by using the adapter 93 according to the present invention, you can use the same power source. When the electrical equipment 4 described above is connected to the system 1, the electric heater 99 and the electrical equipment 4 can check each other's in-use signals, so there is no fear that power will be consumed in excess of the rated power.

[Effects of the Invention] As is clear from the above description, according to the present invention, even if multiple electrical devices are connected to the same power source, the power breaker will not trip due to excessive current flowing. be. Furthermore, by using the adapter of the present invention, it is possible to prevent the power breaker from tripping even when conventional electrical equipment is connected to the same power source.

[Brief explanation of the drawing]

FIG. 1 is a wiring diagram of an embodiment of the electrical equipment control system according to the present invention, FIG. 2 is a more detailed wiring diagram of the embodiment, and FIGS. 3A and 3B are diagrams showing the operation of the embodiment. FIG. 4 is a flowchart showing the operation of another embodiment of the invention, FIG. 5 is a flowchart showing a part of the operation of another embodiment of the invention, and FIG. 6 is a flowchart showing the operation of another embodiment of the invention. 7 is a flowchart showing a part of the operation of another embodiment of the present invention, and FIG. 8 is a flowchart showing a part of the operation of another embodiment of the present invention.
FIG. 9 is a flowchart showing a part of the operation of the embodiment, and FIG. 9 is a block diagram showing an embodiment of the adapter of the present invention. l...Power supply system 4...Electrical equipment 41...Signal input circuit 42...Load control circuit 43...Signal output circuit

Claims (7)

[Claims] (1) In an electrical equipment control method for electrical equipment connected to the same power supply system, before supplying power to a predetermined load of the electrical equipment, the power consumption signal of each electrical equipment existing in the predetermined power supply system is checked in advance, Based on this, it is determined whether power can be supplied to the predetermined load, and if it is possible, the power is supplied to the predetermined load, and the power consumption signal of the electrical equipment including the power of the predetermined load is output to the power supply system. However, if power cannot be supplied to the predetermined load, a priority signal of that load is output to the power supply system, and after a predetermined period of time, the above-mentioned operations are repeated again.
Each electrical device always checks the priority signal present in its specified power supply system, and if the electrical device is supplying power to a load with a lower priority than that priority, it will supply power to that load. An electrical equipment control method characterized by canceling. (2) In an electrical equipment control method for electrical equipment connected to the same power supply system, when supplying power to a predetermined load of the electrical equipment, the power consumption signal of the electrical equipment to which the power of the predetermined load has been added in advance is output to the power supply system, examine the power consumption signal of each electrical device in the specified power supply system, determine whether or not power can be supplied to the predetermined load based on that, and if it is possible to supply power, supply power to the predetermined load. If the power cannot be supplied, the power consumption signal of the electrical equipment that reduces the power of the predetermined load and the priority signal of the load are output to the power supply system, and after a predetermined period of time, the above operations are repeated again to reduce the power consumption of each electrical device. The equipment always checks the priority signal present in its given power supply system, and if it is supplying power to a load with a lower priority within the electrical equipment, it will stop supplying power to that load. An electrical equipment control method characterized by: (3) The electrical equipment control method according to claim 1 or 2, wherein the predetermined period is randomly determined using random numbers. (4) If the electrical equipment has a print function and is printing, the electrical equipment control according to claim 1 or 2, wherein at least the page is printed out even when power cannot be supplied. method. (5) If the electrical device has a function of receiving data from another device and printing it, the electrical device temporarily stores the data in a buffer or auxiliary storage device when power cannot be supplied. The electrical equipment control method according to claim 1, 2, or 3. (6) When connecting between a power supply system and a predetermined electrical device, and supplying power to a predetermined load of that electrical device, check the power consumption signal of each electrical device existing in the predetermined power supply system in advance, and based on the Determining whether power can be supplied to the predetermined load, and if possible, supplying power to the predetermined load, and outputting a power consumption signal of the electrical equipment including the power of the predetermined load to the power supply system; If power cannot be supplied to the predetermined load, the priority signal of that load is output to the power supply system, and after a predetermined period of time, the above-mentioned operations are repeated again, so that each electrical device always receives the priority signal that exists in the predetermined power supply system. Check the signal, and if the electrical equipment is supplying power to a load with a lower priority than that priority, the equipment will stop supplying power to that load, and the electrical equipment to which it is connected will stop supplying power. An adapter characterized by being equipped with a switch that can arbitrarily set the power consumption and priority of the load. (7) When a power supply system is connected between a power supply system and a specified electrical device, and when supplying power to a specified load of the electrical device, the power consumption signal of the electrical device to which the power of the specified load has been added in advance is transmitted to the power supply system. checking the power consumption signal of each electrical device in the predetermined power supply system, determining whether or not power can be supplied to the predetermined load based on the power consumption signal, and if it is possible to supply power to the predetermined load, supplying power to the predetermined load; If the power cannot be supplied, the power consumption signal of the electrical equipment that reduces the power of the predetermined load and the priority signal of the load are output to the power supply system, and after a predetermined period of time, the above-mentioned operations are repeated again, and each electrical equipment , a device that constantly checks the priority signal that exists in the specified power supply system, and if the electrical device is supplying power to a load with a lower priority than that priority, stops supplying power to that load. An adapter characterized in that it is equipped with a switch that can arbitrarily set the power consumption and priority of the load of an electrical device to be connected.