JPH02123924A - Electric equipment controlling system and adapter - Google Patents

Abstract

PURPOSE:To prevent a breaker from cutting off even if the total power consumption exceeds the rated power by detecting the power consumption for each electric equipment existing in a power system, comparing it with the rated power and supplying no power to a load when the power is supplied to the load in case of exceeding it. CONSTITUTION:When an electric equipment 3 turns the load (i) 34 ON, the power consumption W1D for each electric equipment in a power system 1 is firstly inputted to a signal input circuit 31, and its total is outputted. A load controlling circuit 32 receives the total power consumption step S1), even if the power of the load (i) is added thereto, it decides whether or not to exceed the rated power of the power system 1 (S2). In case there is not surplus power, it waits until there is surplus power. In case there is surplus one (S2), the total energy value including the power of the load (i) consumed by the electric equipment 3 is outputted to the power system 1 (S3). After that, the load (i) is turned ON (S4).

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 TFI source. Various problems such as the power breaker tripping occur, so in order to prevent this, a device has been devised to prevent the fusing heater and exposure lamp from being turned on at the same time (Japanese Patent Laid-Open No. 57
(Refer to Publication No.-211164).

[Problem to be solved by the invention] However, such efforts are made within a single copying machine, and the relationship with other copying machines is considered independently, so multiple copying machines cannot be connected to the same power supply. If connected,
The problem of the power supply breaker tripping could not be solved. That is, if the rated power of the power supply is 1500 W, the breaker may trip if two copying machines with maximum power consumption of IOOOW are used.

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. This electrical equipment control method is characterized in that the power consumption signal of the electrical equipment is output to its power supply system, and if power cannot be supplied to the predetermined load, the above-mentioned operations are repeated again after a predetermined period of time has elapsed.

The present invention as claimed in claim 2 provides an electrical equipment control system for electrical equipment connected to the same power supply system, in which when supplying power to a predetermined load of the electrical equipment, the electrical equipment is supplied with the power of the predetermined load in advance. A power consumption signal is output to the power supply system, the power consumption signal of each electrical device in the predetermined power supply system is checked, and based on that it is determined whether or not power can be supplied to the predetermined load. This electrical equipment control method is characterized by supplying power to the load and, if power cannot be supplied, repeating each of the above-mentioned operations again after a predetermined period of time has elapsed.

According to the present invention of claim 6, when the power supply system is connected between a power supply system and a predetermined electric device, and when supplying power to the load of the electric device, the power consumption signal of each electric device existing in the predetermined power supply system is determined in advance. Based on this, it is determined whether power can be supplied to the load, and if it is possible, power is supplied to the load, and the power consumption signal of the electrical equipment is output to the power supply system to supply power to the load. If the power cannot be supplied, the above-mentioned operations are repeated after a predetermined period of time has elapsed, and the adapter is characterized by being equipped with a switch that can arbitrarily set the power consumption of the load of the connected electrical equipment.

The present invention according to claim 7 is connected between a 5ttI system and a predetermined electrical equipment, and when supplying power to the load of the electrical equipment, a power consumption signal of the electrical equipment is output to the power supply system in advance, and the power consumption signal of the electrical equipment is output to the power supply system. The power consumption signal of each electrical device in a given power supply system is examined, and based on that it is determined whether or not power can be supplied to the load. If power can be supplied, power is supplied to the load; if power cannot be supplied, power is supplied to the load for a predetermined period of time. This adapter is a device that repeats each of the above-mentioned operations again after a period of time has elapsed, and is characterized by being equipped with a switch that can arbitrarily set the power consumption of the load of the connected electrical device.

[Function] When supplying power to a load, the present invention examines the power consumption of each electrical device present in the power supply system, compares it with the rated power, and if supplying power to the load exceeds the rated power, the above-mentioned Since power is not supplied to the load, there is no worry that the total power consumption will exceed the rated power of the power supply and trip the breaker.

[Embodiments] The present invention will be explained below based on drawings showing embodiments thereof.

FIG. 1 is a wiring diagram showing an embodiment of the electrical equipment control method of the present invention.

In the figure, 1 is a power supply system, 2 is a power transformer, and 3 is a predetermined electric device, which is connected to the power supply system 1 through a plug and an outlet. The electrical equipment 3 includes a load 34,35 such as a heater, a signal input circuit 31 that manually inputs each power consumption signal wID of each electrical equipment present in the power supply system l, and calculates the total value of the power consumption. Signal input circuit 3
Based on the output signal and rated power of 1, the load 34.3
5 and outputs the total power consumption of the electrical equipment, and the total power consumption output from the load control circuit 32'h) is used as the signal WID to control the power supply system l.
In this way, a plurality of electrical devices 3 that can utilize the power consumption signal WID are connected to the same power supply system. Note that the electrical device 3 is equipped with a switch that can freely set the rated power of the power supply system to which it is connected.

FIG. 2 to FIG. 5 are flowcharts showing the operation of the embodiment described in -E.

As shown in FIG. 2, the load control circuit 3 of the electrical equipment 3
2 outputs the total power consumption of loads currently using power, such as loads 34 and 35 (step Sl). The signal output circuit 33 converts the total power consumption outputted from the load control circuit 32 into pulses and sends it to the power supply system l as a signal WID.
(Step S2). The power consumption WID may be, for example, a high frequency signal of IKHz that is amplitude- or frequency-modulated.

Further, as shown in FIG. 3, the signal input circuit 31 is configured to is the power consumption signal WID of each electrical device existing in source system 1
manually in step S1), the sum of each WID is calculated in step S2), and the result is output to the load control circuit 32 (step S3).

When the electrical equipment 3 turns on its load (i) 34, as shown in FIG. 4A, the signal input circuit 31 first manually calculates the power consumption WID of each electrical equipment in the power supply system 1, and calculates the total power consumption WID. Output. The load control circuit 32 receives the total power consumption (step S1), and determines whether the rated power of the power supply system L will not be exceeded even if the power of the load I that is about to be turned on is added (step S2). ). If there is not enough time, wait until there is time. The time may be changed each time using a fixed time or a random number. If there is a margin (step S2), the electrical equipment 3 including the power of the load 1 to be turned on is
outputs the total power consumed by the power grid 1 to the power grid 1 (step S3). Then, the load 1 is turned on (step 54) 6. Note that FIG. 4B is a flowchart showing another operation. That is, as shown in the figure, it first outputs the power consumption including the load l (Step S3), then receives the total power consumption from the signal input circuit (Step Sl), and has already output its own power consumption. It is determined whether there is a margin in consideration of the above (step S2).

By doing this, after determining that there is enough room,
It is possible to avoid the inconvenience of other electrical equipment turning on the load while trying to output the total power consumption.

FIG. 5 is a flowchart illustrating a process to be performed when the use of the load 1 of the electrical equipment 3 is completed.

In the figure, the load control circuit 32 turns off the load 1 (step S1), and the signal output circuit 33 receives this and outputs the power consumption WID excluding the power of the load l (step S2).

In addition, in this example, the unique signal is not modulated,
It may also be created by changing the frequency of the carrier signal itself.

FIG. 6 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 same figure, when the copying machine attempts to use the fixing heater, the signal input circuit 31 inputs a signal from the power supply system 1 to determine whether or not electric power can be used in step St. ).

Then, the negative part control circuit 32 calculates the sum of each power consumption WID and the power of the fixing heater that is about to be turned on,
Compare it with the rated power and decide whether there is enough margin (
Step S2). If there is a margin, output the signal WID of the power consumption of the electrical device including the power of the heater (
Step S3). Then, a message indicating that copying is possible is displayed and the heater is turned on (steps S4 and S5). On the other hand, if there is not enough room, if copying is not in progress, an LED element or liquid crystal element is used on the operation panel of the copying machine to display that copying is prohibited (step S9).

If power cannot be used during copying, continue copying without turning on the heater, display the copy indicator = T, and check again whether power is available (steps S6, S7, S8). .S9).

FIG. 7 is a flow chart showing an example of the operation 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 signal human power circuit 31 checks the power consumption signal WID of the power supply system 1 as described above to see if it is possible to use electric power (step Sl). Then, if there is a margin, output the total power consumption signal WID of the electrical equipment including the heater (step S2), and output the total power consumption signal WID of the electrical equipment including the heater (step S2).
3) Turn on the heater (step S4). If there is received data, the received data is printed (step S5.6). On the other hand, if there is not enough room, skip step S2), or if receiving printing is in progress, step S7), and continue printing only the page currently being printed with the heater off (
Step S8), the remaining data is saved in an auxiliary storage device such as a hard disk or a ram disk (step S9.51O). If the received data is valuable, check whether there is data in the auxiliary note [g]. Check to see if power is available, and if possible, print the data in the auxiliary storage device.

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

Also, it is similarly checked whether power is available during standby.

FIG. 8 is a flowchart showing an example of the operation when a racer printer is used as the electrical device of the present invention.

In the same figure, when the laser printer attempts to use the heater, the signal input circuit 31 checks whether power can be used or not, as described above, by transmitting the power consumption signal W of the power supply system 1.
Check the ID (step Sl). If there is a margin (step S2), the total power consumption signal WID of the electrical equipment including the heater is outputted (step S2).
3) Turn on the heater (step S4). Then, the data is printed (step S5). On the other hand, if there is no margin (step S2), if receiving printing is in progress (step S6)
), only the page being printed continues to be printed with the heater off (steps S7, S8), and the remaining data is received in the buffer if there is space in the buffer (step S9). In step S10), if there is no free space in the buffer, in step S9), the data is saved in an auxiliary storage such as a hard disk or a ram disk. Then, the host computer is made to stop transmitting data.

Furthermore, printing is prohibited (step 512). When power is available, printing resumes and data is received from the host computer as the buffer becomes available.

If the power is not available and the printer is not printing, printing will not be performed and the data will remain in the buffer.

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

In the figure, 100 is an adapter, which includes a plug 23 connected to the outlet 3 of the power supply system 1, a signal input circuit 31, a load control circuit 32, a signal output circuit 33, and a rated power setting switch of each of the above embodiments. etc., a current control section 12 that controls power in response to instructions from the control section 11, and an outlet 13 connected to the current control section 12. be.

99 has high power consumption, such as electric heaters, etc.
Furthermore, the device can be controlled by the plug section. 9
91 is a plug portion of the electric heater.

The plug portion 991 is connectable to the outlet 13 of the invention. This adapter is equipped with a switch that allows you to set the power consumption of the connected electrical equipment load. Depending on the settings, the adapter can recognize the power consumption of that load.

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

The control unit 11 of the board adapter 100 checks the power consumption WID of the power supply system l. Then, the sum is calculated and added to the power value of the load to be turned on, and if there is a margin, the total value WID is outputted and power is supplied to the electric heater 99. Then, after a predetermined period of time has elapsed, the power supply is stopped +h, and a power consumption signal WID obtained by subtracting the power of the load is output. Then, check the usage status of other electrical equipment again. If other electrical equipment is not in use, power to the electric heater 99 is restarted as described above.

Incidentally, the total value WID may be output first, and then the power consumption may be investigated in consideration of it.

In this way, even if you want to use the same power source with ordinary electric devices such as electric heaters that do not use power consumption signals, by using the adapter lOO according to the present invention, you can connect the power supply system l to When the electrical equipment 3 described in the above embodiment is connected, the electric heater 99 and the electrical equipment 3 can check the in-use signal from each other.
There is no need to worry about power consumption exceeding 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 in conventional ordinary electrical equipment when connected to the same power source.

[Brief explanation of drawings]

FIG. 1 is a wiring diagram showing an embodiment of the electrical equipment control system according to the present invention, FIG. 2 is a flowchart showing the operation of the signal output circuit of the embodiment, and FIG. 3 is a signal input diagram of the embodiment. Flowcharts showing the operation of the circuit, Figures 4A and 4B
5 is a flowchart showing the operation of the same embodiment, FIG. 6 is a flowchart of another embodiment of the present invention, and FIG. 7 is a flowchart of another embodiment of the present invention. FIG. 8 is a flowchart of another embodiment of the present invention, and FIG. 9 is a block diagram showing an embodiment of the adapter of the invention. l...Power supply system 3...Electrical equipment 31...Signal input circuit 32...Load control circuit 33...Signal output circuit 34.35...Load (heater)

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, the above-mentioned operations are repeated again after a predetermined period of time has elapsed. (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. An electric equipment control method characterized in that the above-mentioned operations are repeated again after a predetermined period of time if the electric equipment cannot be supplied. (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 the 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 that, Determine whether or not power can be supplied to the load, and if possible, supply power to the load and output the power consumption signal of the electrical equipment to the power supply system. If power cannot be supplied to the load, a predetermined A device that repeats each of the above-mentioned operations again after a period of time has elapsed,
An adapter characterized by being equipped with a switch that can arbitrarily set the power consumption of the load of connected electrical equipment. (7) A power supply system is connected between a power supply system and a specified electrical device, and when supplying power to the load of the electrical device, the power consumption signal of the electrical device is output to the power system in advance, and each Check the power consumption signal of the electrical equipment, determine whether or not power can be supplied to the load based on it, and if it can be supplied, the load will be supplied with power, and if it cannot be supplied, each of the above-mentioned An adapter that is a device that repeats its operation and is characterized by being equipped with a switch that can arbitrarily set the power consumption of a load of a connected electrical device.