JP2004104863A - Power supply control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To see that home electronic products of high priority are not limited by power supply and to enable power supply to be performed to the most home electronic products at all times even if there is a change in operating conditions, when controlling the power supply to the home electronic products so that a breaker may not work by an excessive current. <P>SOLUTION: This system computes beforehand with a server that a current becomes more than allowance to work a breaker by the power consumption increasing by the change of operating conditions, and compulsively stops the power supply to subordinate home electronic products, thereby preventing the occurrence of an excessive current, and also supplies power to the home electronic products with their power supply stopped compulsively, thereby restoring the operation when a margin comes out in the allowance with the use stoppage of superordinate home electronic products. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a power control system for home electric appliances to be supplied with electric power via a power line via a breaker, and more particularly to a power supply control system for controlling so that the maximum number of home electric appliances can be used within a range of an allowable current amount of the breaker. About.
[0002]
[Prior art]
If you use too many home appliances at once, the breaker will trip and all the home appliances that were running will stop working. Some home appliances, such as microwave ovens, rice cookers, and personal computers, are difficult to turn off in the middle, so it is conceivable to limit the power supply in advance to prevent the breaker from falling. [0003]
For this purpose, for example, as described in Japanese Patent Application Laid-Open No. H8-9569 (first prior art), the circuit breaker 2 is connected to the circuit breaker 2 in order to prevent the circuit breaker 2 from inadvertently performing a breaking operation. A load device 8 is connected to the plurality of outlets 4 through the terminal device 5 and control information is transmitted between the circuit breaker 2 and the terminal device 5 to calculate a load current amount. There has been proposed a technique in which the degree of margin of the load current can be known by the heater 5 or the load current can be automatically controlled. Further, control information is transmitted between the circuit breaker 2 and the electric device 6 corresponding to the load device 8 to calculate a load current amount, so that the user can know the margin of the load current with the electric device 6 itself. Technology has been proposed.
[0004]
In Japanese Patent Application Laid-Open No. 2002-27577 (second related art), in order to prevent the breaker from being carelessly operated, the processing device 21 of the controller unit 15 may use a predetermined home appliance as needed. There has been proposed a technology for automatically shutting off current supply to limit the total current consumption.
[0005]
In the first and second prior arts described above, the power supply to the electric equipment is simply limited so that the breaker does not operate and fall off. In some cases, a higher-order device may be turned off. This is again very inconvenient for the user because the power is turned off during operation.
[0006]
Therefore, for example, in Japanese Patent Application Laid-Open No. 2001-69691 (third conventional example), since the breaker device 14 is not inadvertently shut off, various types of data are transmitted and received between a plurality of electric devices to reduce the current capacity of the breaker device 14. In order to control the power-on so as not to exceed, a technique has been proposed in which electric devices are given priority.
[0007]
In addition, for example, in Japanese Patent Application Laid-Open No. 10-282161 (in the fourth prior art 9, in order to centrally manage power consumption and detect the presence of an electric device or more, the center adapter 9 is connected to the outlet adapter 6 via the outlet 8). Not only is disclosed, but also a technique for automatically turning off an electric device according to a turn-off order set by the outlet remote controller 12 before power consumption exceeds a predetermined value.
[0008]
[Problems to be solved by the invention]
In the prior art, it has been proposed to not only turn off the electric device before the breaker trips, but also control the power supply based on the priority as shown in the third and fourth prior arts. I have. However, among many home electric appliances, even if the electric appliance has a high priority, there is a new electric device that is not used according to the passage of time or that it is necessary to use the electric appliance as an electric appliance having a high priority. Therefore, in the related art, there is a problem that the system is not satisfactory to the user because the control with high flexibility corresponding to the change of the usage state of the home electric appliance is not performed.
[0009]
The present invention solves the above-mentioned problems of the prior art, and makes it possible to always use home appliances even if home appliances that have a high priority are not used or home appliances that the user wants to use at the highest priority come out in the middle. It is an object of the present invention to provide a power supply control system capable of automatically setting products to a maximum.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a server for managing a plurality of home appliances powered by a power line via a breaker, between the server and the home appliances connected to the power line. Providing a data communication device capable of data communication, turning on and off the power switch of the home electric appliance, sending data of the off operation to the server, executing power supply by the server, obtaining control data of stopping, In the server, data in which priorities are determined in advance according to the power consumption and the degree of importance of use of the home electric appliances are stored, and if there is a home electric appliance whose power switch is turned on by the start of use, this is set to priority 1. The server calculates the total amount of power consumption that is increased by the use of the server, and the calculated result is greater than the allowable current of the breaker. When the server sends out data for forcibly stopping the power supply to the lowest-order home electric appliance, when the use of the higher-end home electric appliance is stopped and the power consumption is reduced, and the spare time is generated, the server turns off the power. And supplies data for causing the forcibly stopped home electric appliances to supply electric power.
[0011]
On the other hand, the present invention provides a server for managing a plurality of home appliances supplied from a power line via a breaker, and communication capable of performing data communication between the server and the home appliances connected to the power line. A device is provided, and data in which priority is determined in advance by the power consumption and the degree of importance of use of the home electric appliance in the server is stored, and the total power consumption in which power consumption increases due to a change in use status is stored in the server. When the calculation result is equal to or more than the allowable current value of the breaker, the server sends data for forcibly stopping the power supply to the lowest-order home electric appliance to the home electric appliance corresponding to the increase in the power consumption. The server sends out data that enables power supply of the server, and when the use of high-end home appliances is stopped and power consumption is reduced, the server Le is a power supply control system for delivering data for the power supply to the calculated the forcibly stopped the appliances to.
[0012]
Here, the home electric appliance sends data based on an on / off operation of a power switch thereof to the server, and obtains control data of power supply execution and stop by arithmetic processing of the server to control power supply. Power supply control system.
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is an explanatory diagram showing a communication configuration in an example of an embodiment of a power supply control system according to the present invention. 1 is a breaker provided on a power line, 2 is a server, 3, 4, 5, and 6 are home appliances such as an air conditioner, a microwave oven, a television, and a rice cooker. Reference numeral 7 denotes a data communication device provided so that data can be communicated between the breaker 1, the server 2, the air conditioner 3, the microwave oven 4, the television 5, and the rice cooker 6 via a power line. When the air conditioner 3, the microwave oven 4, the television 5, and the rice cooker 6 are plugged into an outlet, each product code and power consumption data are read and transmitted to the server 2 by the data communication device 7 as shown by the arrow A. It has become.
[0014]
In the server 2, the priorities of home electric appliances are registered in advance by the user. That is, data is registered in the server 2 in the relationship shown in the explanatory table of FIG. Here, the order of priority refers to home electric appliances that one absolutely wants to use, or home electric appliances that do not need to be used if the power is too high and the breaker 1 drops due to excessive power consumption. It is ranked up to.
[0015]
The server 2 receives the power supply, recognizes the operating home electric appliance by a product code, and calculates the total power consumption from the power consumption shown in a table stored in advance. Then, control data for supplying electric power to the electric home appliance to be used is transmitted to control the electric appliance to be used. When the total power consumption exceeds the allowable value of the breaker 1, the lowest electric home appliance is used. The control data for forcibly stopping the power supply is transmitted. On the other hand, in the case where home electric appliances whose use has been terminated due to the passage of time occur and the power is turned off on the home electric appliance side, if the server 2 detects this and there is a margin within an allowable value, the server 2 is forcibly forced. Control data for restoring home appliances whose power supply has been stopped is transmitted. As shown by the arrow B, these control data are transmitted from the server 2 to each home electric appliance with a product code attached.
[0016]
The power-on state of each home appliance will be described in detail. The air conditioner 3, the microwave oven 4, the television 5, and the rice cooker 6 of the home appliances each have a power switch, and when the user turns on the power switch during use, the data is transmitted to the server 2, and the operation on the server 2 side is performed. According to the result of the processing, the actual power supply is performed according to the operation permission control data, and the operation of the home electric appliance is started.
[0017]
Next, an operation of the power supply control system according to an example of the embodiment of the present invention will be described.
[0018]
FIG. 3 is a flowchart for explaining the operation of the home electric appliance in the electric power supply control system of the present invention.
[0019]
When the user turns on the power switch of the home electric appliance, the home electric appliance side is set to a start state. In step S1, the product code of the home electric appliance and data for changing to the priority order 1 are transmitted to the server 2 via the communication device 7. Next, in step S2, operation permission data indicating that power can be supplied is obtained based on the calculation processing result of the server 2, and it is determined whether the data has been successfully received. When the operation permission data is received, in step S3, the operation of the home electric appliance is started. The calculation processing on the server 2 side will be described in detail with reference to FIG.
[0020]
FIG. 4 is a flowchart for explaining the operation of the server side in the power supply control system of the present invention, and the processing operation of the server that receives various data from the home electric appliance side will be described.
[0021]
The server 2 starts when various data are received. For example, in FIG. 2, when only the rice cooker 6 is not used and all other home appliances are used, the user turns on the power switch to use the rice cooker 6 as an example. It is determined in step S4 that the data based on the ON operation has been received. When it is determined that this reception has been made, in step S5, the rice cooker 6 is changed to the priority order 1 and registered as the home electric appliance which the user wants to use most preferentially. In this case, as shown in the table of FIG. 2, the third priority in the pre-change priority set in advance on the server 2 side is changed to the first priority and registered. Then, the other home appliances located higher than the rice cooker 6 move down by one. In step S6, the total power consumption is calculated. In step S7, it is determined whether or not the current value consumed by the total power consumption is within the range of the current allowable value of the breaker 3. If it is determined that it is within the allowable value, the state is set in step S8 so that power can be supplied to all the home appliances. On the other hand, if it is determined in step S7 that the value is equal to or more than the allowable value, the data is transmitted so as to set the power supply of the lowest TV 5 to the OFF state as shown in step S9, and the server 2 transmits the data. The power consumption 100 W registered in advance is changed to 0 W.
[0022]
Thereafter, the total power consumption is calculated again in step S6. Then, in step S7, if it is determined that the current time is within the allowable value, in step S8, a state is set in which electric power can be supplied to each household electric appliance other than the television 5.
[0023]
In step S9, if it is determined that the power supply to the television 5 is still at or above the allowable value even if the power supply to the television 5 is forcibly stopped, then the power supply to the air conditioner 4 is forcibly set to the stop state, The resultant power consumption of 800 W is changed to 0 W, and the total power consumption is calculated again. Hereinafter, the calculation process is performed until the value falls within the allowable value range.
[0024]
Next, with reference to FIG. 5, a flowchart of the operation on the home electric appliance side in the power supply control system of the present invention, the fact that the use is stopped on the home electric appliance side will be described.
[0025]
The user turns off the power switch of the home electric appliance whose use is to be stopped to start the home electric appliance side. In step S10, data indicating that the home appliance that has been turned off, for example, the air conditioner 4 has been turned off, is sent to the server 2. The server 2 obtains the result of the reduction of the total power consumption based on the fact that the power consumption of 800 W has become 0 W due to the suspension of the use of the air conditioner 4 through the arithmetic processing, and sends out control data for stopping the power supply to the air conditioner 4. The power supply to the air conditioner 4 is stopped in step S11.
[0026]
FIG. 6 is a flowchart for explaining the operation on the server side in the power control system of the present invention, and describes processing in the server when the total power consumption is reduced by turning off the power.
[0027]
The home electric appliances whose power is forcibly turned off because of the lower priority are processed to be automatically turned on again by the reduction of the total power consumption described above. The start is set by receiving the data indicating that the power consumption of 800 W has become 0 W. In step S12, it is determined whether or not the total power consumption has become equal to or less than the average total power consumption. Here, the average total power consumption means that home appliances require a large current for startup for a while at the start of operation, or that power consumption is not stable. Value. In step S <b> 13, it is determined whether there is any home electric appliance whose power supply has been forcibly stopped because it is the lowest according to the setting of the server 3. If it is determined that there is a home electric appliance for which the power supply has been forcibly stopped, for example, the television 5, if it is determined in step S14 that power has been supplied to the television 5, it is determined whether the total power consumption is within an allowable value. . If it is within the allowable value, in step S15, the television 5 is powered on and the power supply is executed to recover. Then, in step 13 again, it is determined whether there is any home electric appliance other than the television 5 forcibly set to power off, and if there is no home electric appliance, the process ends. However, if there is any other home electric appliance whose power supply has been forcibly stopped, this is determined, and the above-described steps are executed within a range of an allowable value.
[0028]
If it is determined in step S14 that the total power consumption is not within the allowable value, the home electric appliance whose power supply has been forcibly stopped is not recovered, and the process ends.
[0029]
According to an example of the embodiment of the present invention, the data of the ON / OFF operation of the power switch of the home electric appliance is transmitted to the server 2, and the server 2 performs the power supply execution / stop determination processing to perform the control data. However, when the user turns on the power switch for use, the power supply is changed to the first priority and the power supply is executed. At the same time, the server 2 calculates the total power consumption, and when the current exceeds the allowable current value of the breaker 1, the power supply to the lowest-order home electric appliance is forcibly stopped, and the breaker 2 does not fall due to excessive current. To do. When there is a margin in the allowable current value due to the stoppage of the use, the server 2 side determines this and controls the power supply to the power-supplied home electric appliances to forcibly supply the electric power to the operating state. Let it recover. For this reason, the home appliances with the highest priority are not only supplied with power, but also the home appliances with lower priority that have been forcibly stopped are automatically recovered when the allowable current value has enough margin, so that many home appliances are always Home appliances are kept in operation.
[0030]
In one example of the embodiment of the present invention, the start condition on the home appliance side in FIG. 3 is given the highest priority because the power switch of the home appliance is turned on for use by the user. The present invention is not limited to this, and the case where the power consumption changes according to time may be given top priority. For example, when timer recording is to be started in a state in which the television is operating in a device in which the television and the video are integrated, an increase in power consumption is known in advance, and this is stored in the server 2 and the increase in power consumption is stored. The total power consumption is calculated, and power supply is executed with timer recording as the highest priority. On the other hand, since the power consumption is reduced when the timer recording is automatically terminated, if there is any home electric appliance whose power supply has been forcibly stopped, the control is performed so as to recover it.
[0031]
According to the present invention, the allowable current value set in advance so that the breaker 1 does not fall in the server 2 needs to be set with an allowance for the large current that flows when the home electric appliance starts. Furthermore, since the large current at the time of startup differs depending on the product using the motor, the product using the heating wire, the product not using these at all, etc. In addition, many home appliances can be used at a current value at a limit at which the breaker 1 does not fall.
[0032]
It should be noted that the present invention generally ignores home electric appliances in which a standby current is constantly flowing due to a timer, data storage and the like, since the electric appliances have small values and little influence on the breaker 1.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, the home electric appliance whose power switch is turned on for use by the user is processed by the server and the total power consumption exceeds the allowable current value of the breaker. Even if the power supply has been performed, the power supply to the low-order home electric appliances is forcibly stopped to be equal to or less than the allowable value, so that the power supply is always executed. Then, when a home electric appliance whose use is stopped due to the passage of time occurs, power supply to the electric home appliance whose power supply has been forcibly stopped is automatically performed and recovered within a range of a margin for an allowable current value generated thereby. There are effects that can be. In this way, even if the home appliances used change over time, it is satisfactory for the user that the most home appliances can be operated at all times without the breaker being accidentally dropped. A power supply control system can be provided. In addition, since data is concentrated on a common server and arithmetic processing is performed, there is an effect that the configuration is simple and reliable control can be performed.
[0034]
According to the second aspect of the present invention, when the power consumption increases due to a change in the use state due to a user turning on a power switch, a change in a mode, or the like, the total current consumption value exceeds the allowable current value of the breaker. Even if the power supply is turned off, the power supply to the low-order home electric appliances is forcibly stopped to make it equal to or less than the allowable value, so that the power supply is always executed. Then, when a home appliance whose use is stopped due to the passage of time occurs, the power supply to the home appliance whose power supply has been forcibly stopped is automatically performed and recovered within a margin of an allowable current value generated thereby. There are effects that can be. In this way, even if the home appliances used change over time, the user can always operate the most products to the maximum without breaking the breaker carelessly. Can provide a power supply control system that is satisfactory to the user.
[0035]
Further, according to the third aspect of the present invention, since the ON / OFF operations of the power switches of a plurality of home electric appliances are intensively processed by a common server, there is an effect that the configuration is simple and reliable control is possible.
[Brief description of the drawings]
FIG. 1 is a block diagram of a power supply control system showing an example of an embodiment of the present invention.
FIG. 2 is an explanatory table showing priorities of home electric appliances according to an example of an embodiment of the present invention.
FIG. 3 is a flowchart illustrating an operation of the home electric appliance according to an embodiment of the present invention.
FIG. 4 is a flowchart for explaining an operation on a server side according to an example of an embodiment of the present invention;
FIG. 5 is a flowchart for explaining another operation on the home electric appliance side according to an example of an embodiment of the present invention.
FIG. 6 is a flowchart for explaining another operation on the server side in an example of an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Breaker 2 Server 3 Air conditioner 4 Microwave oven 5 Television 6 Rice cooker 7 Communication device

Claims (3)

Providing a server for managing a plurality of home appliances powered by a power line via a breaker, providing a communication device capable of performing data communication between the server and a home appliance connected to the power line, Data of the ON / OFF operation of the power switch of the product is transmitted to the server, and control data for executing and stopping the power supply is obtained by the server. If there is a home electric appliance whose power switch is turned on by the start of use, the data is set to the priority 1 and the other is deferred to the other, and the total power consumption increased by its use is stored. Amount is calculated by the server, and when the calculation result is equal to or more than the allowable current amount of the breaker, the server is Data for forcibly stopping power supply to the home appliance, and data for enabling power supply to the home electric appliances set to the priority 1 are transmitted, and the use of the high-end home electric appliances is stopped and the power consumption is reduced. The power supply control system, characterized in that the server calculates the margin when the margin is reduced and sends data for supplying power to the forcibly stopped home electric appliance. Providing a server for managing a plurality of home appliances powered by a power line via a breaker, providing a communication device capable of data communication between the server and home appliances connected to the power line, the server In the data stored in advance the power consumption of the home appliance and the priority according to the degree of importance of use is stored, the server calculates the total power consumption that increases the power consumption due to changes in the use situation, the calculation result is When the current exceeds the breaker's allowable current, the server sends out data for forcibly stopping the power supply to the lowest-order home electric appliance, thereby enabling power supply to the home electric appliance corresponding to the increase in the power consumption. The server computes the data when the use of high-end home appliances is stopped and the power consumption is reduced and there is room to spare. Power supply control system characterized by forcibly stopped the appliances delivering data for the power supply. The home electric appliance transmits data based on an on / off operation of a power switch to the server, and obtains control data of execution and stop of power supply by the server, and controls power supply. The power supply control system according to claim 2.

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