JPH10248164A - Consumption power detecting and control system and adaptor for plug socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent data in a personal computer or the like from being broken down when a breaker is cut off. SOLUTION: Devices which are hardly returned to an original state due to the cutoff of the power supply of a personal computer or the like are connected directly to plug sockets 311 to 353 which are connected to the low order of respective breakers 21 to 25. Electric devices which can be returned to an original state when the power supply is turned on again are connected to the plug sockets 311 to 353 via respective adaptors 40 for the plug sockets. In every adaptor 40, its own allowable current value and the total current value which can be consumed by all the adaptors 40 are set, and every adaptor measures its own load current so as to be transmitted to another adaptor 40. Every adaptor 40 compares its own load current and currents consumed by all the adaptors 40 with the allowable current value and the total current value. When the margin of a consumable current is exhaust, an electrifying operation to a connected load is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power consumption detection control system for detecting the power consumption of a load device connected to each outlet to prevent the power supply from being interrupted by a breaker. And an outlet adapter.

[0002]

2. Description of the Related Art In general households and companies (offices), contracts regarding the amount of electricity to be supplied are concluded with electric power companies, and electric power is used within that range. In recent years, automation by introduction of electronic equipment in homes or companies,
As the adoption of A has progressed remarkably, the amount of electricity used sometimes exceeds the amount of electricity contracted with a power company. A current limiting breaker is provided between the electric power company and a house or a business establishment, and when more than a contracted amount of electricity is used, the supply of electricity is cut off by the breaker. When the breaker is cut off in this way, it is a common practice to turn off the power of the device that consumes the most power or the devices that do not need it, and then turn the breaker on again.

[0003] In such a case, no problem occurs if the used electronic device is an electronic device that can be restored by turning on the power again. For example, a personal computer (hereinafter referred to as a "PC") or the like is used. If the power is turned off during use, the data you have been working on may be lost or the PC may be destroyed due to unexpected events, making it impossible to recover . For example, if the power is turned off while accessing the hard disk, in the worst case, the inside of the hard disk may be destroyed, and data and information other than the data being worked on may be destroyed.

[0004] As a measure to prevent such a situation,
It is common practice to supply power to a personal computer via an uninterruptible power supply. FIG. 7 is a diagram showing this state. In this figure, 100 is an outlet provided on a wall or the like in a room, 110 is an uninterruptible power supply, and 120 is a personal computer. The uninterruptible power supply 110 detects when the power is turned off, and continues to supply power to the personal computer 120 for a certain period of time (about 3 to 5 minutes). Notify that it has expired.

[0005] By using the uninterruptible power supply 110 in this way, it is possible to prevent the above-mentioned inconvenience caused by a sudden power-off. Must be done. There is also a problem that when the work cannot be interrupted, such as when accessing for a long time, it cannot be handled. Furthermore, the power consumption by the uninterruptible power supply itself cannot be neglected. Further, the uninterruptible power supply is expensive and can be purchased and used by a company or the like. Investing can be difficult.

[0006] In recent years, the number of households purchasing personal computers has also increased in general households due to advances in the Internet, e-mail, and various software. Today, there is only one in each home, but it is not far from the era of one in one. Even in view of the fact that electronic devices other than personal computers are increasing, the amount of electricity contracted with a power company will be insufficient. There is a method of increasing the contract power, but in this case, the basic fee and the fee based on the usage amount increase.

FIG. 8 is a conceptual diagram showing an example of supply of electricity in a general household. In this figure, reference numeral 130 denotes a breaker having a capacity contracted with a power company, and an electric wire drawn indoors from a power pole is connected to the breaker 130 via an integrating power meter (not shown). The output of the breaker 130 is wired to outlets 141 to 143 provided in each room, an electric light (not shown), and the like. In the illustrated example, the personal computer 120 is connected to the outlet 141, and the outlets 142 and 143 are installed in a living room and a dining room, respectively. Therefore, if the total amount of electricity used by the devices connected to the outlets 141 to 143 and the electric lights and the like is within the contracted amount (30 A in the illustrated example), each device can be used without any problem. If the total amount exceeds the contract amount,
The breaker 130 is automatically cut off to stop supplying power.

FIG. 9 is a conceptual diagram showing another example of a power supply mode in a general home.
Is more generally implemented than the example shown in FIG.
In FIG. 9, reference numeral 150 denotes a breaker (main breaker) for restricting the flow of a current exceeding the contracted capacity with the electric power company. It is connected to the. Reference numerals 161 to 167 denote branch breakers inserted for each branch circuit that branches the output of the main breaker 150 into a plurality of parts. Each branch breaker 161 to 167 has a unique current for protecting the corresponding branch circuit. It has a capacity (for example, 20 A each).

Each of the branch breakers 161 to 167 is connected to an outlet 171 to 191 provided in a corresponding room or the like, or to an electric lamp (not shown). For example, in this example, the branch breaker 161
A personal computer is connected to an outlet 173 wired from the computer. The branch breaker 162 is wired to outlets 174 to 176 provided in the living room, and the branch breaker 163 is connected to outlets 177 to 17 provided in the dining room.
9 is wired.

Therefore, each of the branch breakers 161 to 16
7 shuts off when the total load current of the load devices connected to the outlets and the like connected to each exceeds, for example, 20A, and shuts off the main breaker 150 when the total load current exceeds, for example, 40A. Become.

In a general household, wiring is performed in any of the forms shown in FIG. 8 or FIG. In such a case, proposals have been made to prevent interruption by the breaker (JP-A-62-16625-JP-A-62-16628).

FIG. 10 is a diagram showing a schematic configuration of the proposed device. In this figure, 200 is a breaker, and 221-223 are outlets. Also, 210
Is a monitoring device, and 230 is an adapter interposed between the outlets 221 to 223 and the load device. And
The monitoring device 210 monitors the current flowing through the breaker 200, and transmits a predetermined signal to the adapter 230 when detecting that a large amount of current is flowing. The adapter 230 is configured to, when receiving the predetermined signal from the monitoring device 210, notify an alarm to that effect, or stop supplying power to a device connected to the adapter 230. I have.

[0013]

According to the above-described method using the adapter, the breaker 200 can be prevented from being shut off beforehand, and the above-mentioned inconvenience can be avoided. However, the monitoring device 210
Is to detect the current flowing through the breaker 200, and therefore, it is necessary to process the breaker 200 provided on the distribution board. It is possible.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a power detection control system and an outlet adapter which can be easily attached and used by ordinary people.

[0015]

In order to achieve the above object, a power consumption detection control system according to the present invention comprises a power consumption detection system having an outlet adapter detachably interposed between an outlet and a load device. The control system, wherein each of the outlet adapters has a measurement function of measuring a load current by a load device connected thereto, and a transmission function of transmitting load current data measured by the measurement function to another outlet adapter. Function, having a function of receiving the load current data transmitted from the other outlet adapter, the current value and the measured self load current value that can be used by the load device connected to the self, and, The total current value usable by the adapter for all outlets is compared with the load current value of the adapter for all outlets, respectively. As well as the display corresponding to the available current value according to the compare result is what is adapted to control the power supply to the predetermined load.

Further, the outlet adapter of the present invention comprises:
An outlet adapter detachably interposed between an outlet and a load device, a function of measuring a load current by a load device connected to the outlet, and the measured load current data to another outlet adapter. It has a function of transmitting and a function of receiving load current data transmitted from another outlet adapter, a current value usable by a load device connected to the self and the measured self load current value, In addition, the total current value usable by all the outlet adapters is compared with the load current value in all the outlet adapters, and a display corresponding to the available current value is displayed according to the comparison result, and a predetermined load is displayed. It is designed to control the power supply to the power supply.

Further, another outlet adapter of the present invention is an outlet adapter detachably provided between an outlet and a load device, and has a function of measuring a load current by a load device connected thereto. Having a current value usable by a load device connected thereto and the measured load current value of the self, and displaying a display corresponding to a usable current value according to the comparison result. ,
The power supply to a predetermined load is controlled.

[0018]

FIG. 1 is a diagram showing an example of the configuration of a power consumption detection control system according to the present invention. In this figure, 10 is the main breaker described above, and 21 to 25 are the branch breakers described above. As described above, the main breaker 10 has a capacity corresponding to the amount of electricity contracted with the power company, for example, 40 A
It is supposed to be. In addition, each branch breaker 21 to 25
Have a capacity of 20 A, respectively. 31 ₁ 〜
35 ₃ is both a wall outlet, the outlet 31 ₁
To 31 ₃ output branch breakers 21, outlet 32 ₁
To 32 ₃ output branch breakers 22, outlet 33 ₁
To 33 ₃ output branch breakers 23, outlet 34 ₁
To 34 ₃ output branch breakers 24, outlet 35 ₁
35 ₃ are respectively connected to the output of branch breakers 25.

[0019] 40 is a outlet adapter of the present invention, as shown, is detachably connected to some of the outlet 31 _{1-35 3.} Each outlet adapter 40 has one or more outlet receptacles.
Any electrical equipment can be connected via the. Each outlet adapter 40 detects a load current flowing through an electric device connected to itself, and mutually transmits the detected load current data with another outlet adapter. Then, referring to the capacity allowed for the branch circuit to which the self belongs and determined by the branch breakers 21 to 25, and the total capacity determined by the main breaker 10, it is connected to the self. The power that can be consumed by a certain electric device is calculated, and when the power is exceeded or is likely to be exceeded, the operation of stopping the supply of power to the electric device is performed.

In the example shown in this figure, the outlet adapters 40 are connected to outlets 31 ₃ , 32 ₂ , 33 ₂ , 33 ₃ , 34 ₁ , 34 ₂ and 35 ₁ , respectively. Here, since each outlet adapter 40 has a function of controlling power supply to the electrical devices connected to the outlet adapter 40, devices that should always be energized are directly connected without passing through the outlet adapter 40. to be connected to the outlet 31 _{1-35 3.} For example, the above-mentioned personal computer is connected to the outlet 31 ₁ , and the VTR having the timer is connected to the outlet 3.
2 _1, the refrigerator is connected to the outlet 33 _1.

Further, even if the power supply is cut off, the electric equipment which can return to the original state by turning on the power supply again is connected to a power supply outlet through the outlet adapter 40. . Illustrated in the example was, the outlet 31 connected to outlet adapter 40 to ₃ luminaires, the outlet 3
2 ₂ connected to the outlet adapter 40 TV, the outlet 33 ₂ connected to the microwave oven into the outlet adapter 40, the outlet 33 ₃ connected to the toaster or electric kettle into an outlet adapter 40, the outlet 34 ₁ a connected to the outlet adapter luminaires, and, connected to outlet adapter to the outlet 34 ₂ washing machines are connected. In addition, the outlet 3
5 As also connect other electrical equipment _1, outlet adapter 40 is connected.

FIG. 2 is a perspective view showing an external appearance of an example of the outlet adapter 40. As shown in FIG. In this figure, 41
The attachment plug for connecting the outlet adapter 40 to the each outlet 31 _{1-35 3} 42,4
Reference numerals 3 and 44 are outlets for connecting insertion plugs of electrical equipment connected to the outlet adapter.
The number of outlets can be any number, but in this example, there are three outlets. Here, the outlet 44 surrounded by a dashed line in FIG.
The outlets are lower in priority than the individual outlets, and the power supply is stopped first when the load current is large and there is no margin.

Reference numeral 54 denotes this outlet adapter 4.
An ID setting switch for setting an ID number for identifying 0, 55 is a total current value setting switch, and 56 is an available current value setting switch.

From the allowable current value of the main breaker 10 based on a contract with a power company, the user is connected to the outlets 31 ₁ , 32 _1, etc. without passing through a power line (not shown) and the outlet adapter 40. The current value obtained by subtracting the total current consumption by the electronic device or the like is used as the total current value setting switch as the total value of the current usable by all the electric devices connected via the outlet adapter 40. Set to 55. For example, when the capacity of the main breaker 10 is 40 A and the total current consumption by the electronic devices and the like directly connected to the power line and the outlet is 30 A, the total current setting switch 5
5 is set to 30A.

Also, based on the allowable current of the branch breakers 21 to 25 of the branch circuit to which it is connected, the power line connected to the branch breaker and the electronics directly connected to the outlet wired from the branch breaker. The current value obtained by subtracting the sum of the current consumption of the devices is set in the usable current value setting switch 56 as a current value that can be used by the electric device connected to the outlet adapter 40. I do. For example, assuming that the capacity of the branch breaker is 20 A and the sum of current consumption of a personal computer or the like directly connected to an outlet wired from the branch breaker is 10 A, the available current value setting switch 5
6 is set to 10A.

In the case where a plurality of outlet adapters 40 are connected to one branch circuit, the current value calculated as described above is divided by the plurality of outlet adapters 40 and each of the outlet adapters 40 Adapter 40
Is set to the available current value setting switch 56 of

Reference numeral 58 denotes this outlet adapter 4.
A display unit comprising an LED or the like for indicating a current that can be used by the electric device connected to the display device 0;
Reference numerals 66 and 67 denote transmission / reception antennas for wirelessly transmitting load current data to and from another outlet adapter 40.

FIG. 3 is a block diagram showing an example of the internal configuration of the outlet adapter 40. As shown in FIG. In this figure, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. 50 is this outlet adapter 40
Is a control device for controlling the operation of, for example, a microcomputer is used. Reference numeral 51 denotes a current detection unit that detects a current consumed by an electric device connected to the outlet adapter 40. As the current detection unit 51, for example, a type that detects an eddy current generated by a current flowing through a power supply line can be used. Further, reference numeral 52 denotes an A / D converter for converting the load current detected by the current detection unit 51 from analog to digital and input to the control device 50; 53, a data storage RAM for storing various data; Control device 50
An audio circuit for outputting an alarm by voice by the output of
Reference numeral 60 denotes a speaker to which the output of the audio circuit unit 59 is applied.

Reference numerals 61, 62 and 63 denote relay switches, each of which is connected to an output port p of the control device 50.
The power supply to the corresponding outlets 42, 43 and 44 is controlled according to the drive signals output from ₁ , p ₂ and p ₃ . Further, reference numeral 64 denotes another outlet adapter 40 of the load current data output from the control device 50.
A wireless control circuit for controlling the transmission of the load current data and the input of the load current data received from another outlet adapter 40; 65, a transmitter; and 68, a receiver.

Further, 69 transmits / receives load current data to / from another outlet adapter 40 not by radio,
Reference numeral 57 denotes a communication control circuit for performing transmission and reception of the load current data wirelessly, or a selection switch for selecting whether to perform transmission and reception via the power line via the communication control circuit 69. is there. In the case where only one of the transmission methods is adopted, the selection switch 57 and one of the communication circuits and the like can be omitted.

Furthermore, the portion surrounded by the dotted line, 7
1, 72 and 73 are current measuring units provided for individually measuring the load currents at the outlets 42, 43 and 44, and 74, 75 and 76 are the current measuring units 71, 72 and 73 respectively. The A / D converter converts an output into a digital signal and inputs the digital signal to the control device 50. Instead of the current measuring unit 51 and the A / D converter 52, the load current may be measured for each outlet in this manner. In this case, more precise control can be performed as described later.

The manner in which load current data is transmitted by each outlet adapter 40 will be described with reference to the timing chart of FIG. Any one of the outlet adapters 40 connected to the power consumption detection control system serves as a master, and transmits a load current packet every predetermined period T. Any outlet adapter 40 may be the master, but in this example, the ID No. The outlet adapter designated as 1 is the master. The other outlet adapter 40 has the ID No. A load current packet having a timing offset of an amount corresponding to each ID number is transmitted with respect to the packet transmission timing of one outlet adapter 40. This allows
As shown in the figure, the load current packets from each outlet adapter 40 can be transmitted without overlapping.

In the figure, ID No. 3 and IDN
o. The outlet adapter 40 not connected to the outlet like the outlet adapter 40 shown in FIG. 4 does not transmit the load current data packet.

As shown, each load current data packet has a start code indicating the start of the packet, an ID code of the outlet adapter 40 to be transmitted,
It comprises load current value data consumed by the outlet adapter, checksum data, and an end code indicating the end of the packet. Each outlet adapter 40 constantly transmits such a load current data packet at the timing shown in the drawing, whereby each outlet adapter 40 can know the current load current value at another outlet. it can.

The operation of the power consumption detection control system of the present invention having a plurality of outlet adapters 40 configured as described above will be described. First, the portion surrounded by the broken line in FIG. 3 is not provided, and the current measuring unit 51 uses the outlet 4 of the outlet adapter 40.
A description will be given of a case in which the sum of the currents consumed in the devices connected to the devices 2 to 44 is measured.

The measured value of the current measuring section 51 (the load current value at the outlet adapter 40) I _i is A /
The data is converted into digital data by the D converter 52 and read into the control device 50. Further, the load current data I _j in each outlet adapter 40 transmitted from another outlet adapter 40 via the reception antenna 67, the receiver 68, the wireless control circuit 64, or the communication control circuit 69. (J = 1 to n) are read into the control device 50.

The control device 50 includes an allowable total current value I _s set by the total current value setting switch 55, an allowable total current value I _Ai set by the usable current value setting switch 56, The current value I _i consumed by this outlet adapter 40 measured by 51 and the load current I _j () received by the receiver 68 or the other outlet adapter 40 via the communication control circuit 69. Based on j = 1 to n), it is calculated how much current can be used by the outlet adapter 40.

That is, (1) the adapter for an outlet
Current value I that can be used in_AiWhen
Current load current measured by the current measuring unit 51
Value I _i Difference Ix (= I_Ai-I_i ) And (2) before
Allowable total current value I_s And each outlet adapter 40
Sum of load current data received from_j Difference Iy (=
I_s −ΣI_j ) Is calculated.

The resulting Ix and Iy and the first
_Is compared with a predetermined value I _th1 (for example, 3A).
As a result, when both Ix and Iy are greater than I _th1 , main breaker 10 and branch breakers 21 to 2
There is no fear of blocking any of the five. In this case, the display unit 58 is, for example, displayed in blue.

Next, when the value Ix or Iy becomes smaller than the first predetermined value I _th1, it is determined that the vehicle is in the danger range where the breaker will be shut off, and the display color of the display unit 58 is changed to, for example, yellow And so on. The user sees this display and performs processing such as avoiding turning on the power of the load anew.

Next, when the Ix becomes smaller than a second predetermined value I _th2 (for example, 0.5 A), or
When the Iy becomes smaller than a third predetermined value I _th3 (for example, 1 A), the main breaker 10 or the branch breakers 21 to 25 may be shut off. blocking the relay switch 63 through the p _1, turning off the power of the priority to lowest outlet 44. At the same time, for example, a red alarm is displayed on the display unit 38, and the audio circuit unit 59 is driven to notify the speaker 60 of the alarm. In this case, the user may confirm that the display color of the display unit has been changed from red to another color, and then turn on the power of the device whose power supply has been cut off.

In this way, it is possible to prevent the main breaker 10 and the branch breakers 21 to 25 from shutting off. Therefore, it is possible to protect a device that is inconvenient to suddenly turn off the power, for example, a personal computer. Since the above processing needs to be performed before the branch breaker of the branch circuit to which the outlet adapter 40 is connected is cut off, the time constant of the relay switches 61 to 63 is determined by the branch breaker. And one that is smaller than the time constant of the main breaker.

Next, instead of the current measuring section 51 and the A / D converter 52, the current measuring sections 71 to 73 and the A / D converter 74 correspond to the outlets 42 to 44, respectively.
A case in which -76 is provided will be described. In this case, since the load current is measured for each of the outlets 42 to 44, when the Ix becomes smaller than the second predetermined value I _th2 , the load corresponding to the outlet where no load current flows is obtained. Shut off the relay switch so that no new load occurs. When the value of Iy becomes smaller than the third predetermined value I _th3 , the outlet 42
Relay switches 6 corresponding to devices having a large load current or devices having a low priority among devices connected to.
Control is performed to cut 1 to 63. In this manner, finer control can be performed as compared with the case where the current measuring unit 51 and the A / D converter 52 are provided as described above.
It is possible to reliably prevent the breaker from being shut off.

As described above, by using the outlet adapter of the present invention, the load current can be monitored without processing the distribution board or the like.
It is possible to prevent the main breaker 10 or the branch breakers 21 to 25 from suddenly shutting off.

FIG. 5 is a view showing the appearance of another embodiment of the outlet adapter of the present invention. This outlet adapter 80 is effective when applied to a case where power is supplied via a single breaker as shown in FIG. In this drawing, reference numeral 81 denotes an insertion plug for connecting to the above-described outlet, and reference numeral 82 denotes an outlet for connecting an electric device. Reference numeral 84 denotes a current value setting switch, and reference numeral 85 denotes an ID setting switch for identifying the outlet adapter 80. Further, 89 is a display unit similar to that described above, and 92 and 93 are transmitting and receiving antennas similar to those described above.

FIG. 6 is a block diagram showing the internal configuration of the outlet adapter 80. As shown in FIG. In this figure, the same components as those in FIG. 5 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 6, reference numeral 83 denotes a control device, 86 denotes a current measuring unit for detecting a current flowing to the device connected to the outlet 84, and 87 denotes an A / D that converts the output of the current measuring unit 84 into digital data. The converter 88 is a relay switch for cutting off the power supply to the outlet 82. Further, 90 is a wireless control circuit, 91 is a transmitter, 94 is a receiver, 96 is a communication control device, and 95 is a selection switch for selecting the wireless control circuit 90 and the communication control device 96, which are described above. It is similar to the one.

In the power consumption detection control system using the outlet adapter 80 configured as described above, the power consumption is obtained by previously subtracting the current consumption of the load device such as a personal computer directly connected to the outlet from the current capacity of the breaker. The current value is set by the current value setting switch 84 in advance.

The control device 83 calculates the sum of the set total current and the load current in each outlet adapter 80 received from another outlet adapter 80 via the wireless control circuit 90 or the communication control circuit 96. A current having a difference from the current value of the sum is calculated, and when the current having the difference becomes smaller than a first predetermined value, the fact is displayed on the display unit 89, and the current is made smaller than a second predetermined value. When this happens, an alarm is displayed on the display unit 89, and the relay switch 88 is turned off to cut off the power supply to the outlet 82. Thus, as in the case described above, the breaker can be prevented from being shut off.

Also, the portion surrounded by the broken line in FIG. 6 can be omitted to provide the outlet adapter 80 in which the communication function with another outlet adapter is omitted. In this case, the current value obtained by subtracting the current consumption of a load device such as a personal computer directly connected to the outlet from the current capacity of the breaker is appropriately distributed to a plurality of outlet adapters 80 included in the system. The current values thus set are set by the current value setting switch 84 as usable currents of the respective outlet adapters 80.

The control unit 83 compares the set allowable current with the load current measured by the current measuring unit 86, and when the difference current becomes smaller than a first predetermined value, the control unit 83 informs the user. Is displayed on the display unit 89, and when the current measuring unit 86 detects a current closer to the outlet than the second predetermined value, the relay switch 88 is shut off to connect the outlet 82 to the outlet 82. Cut off the current. This makes it possible to prevent the breaker from being shut off.
In this case, by using the outlet adapter 80, the power supply mode shown in FIG. 2 can be said to be the same as the power supply mode shown in FIG. The branch breaker 21
It can be said that it has a function corresponding to ２５25.

In the above description, the emission color of the display unit 58 is changed to display the margin of the consumed current. However, the present invention is not limited to this.
As long as the use state can be notified, the presence or absence of blinking of the display may be used.

[0052]

As described above, according to the used power detection control system and the socket adapter of the present invention, it is not necessary to process the power supply line such as the distribution board, and the outlet adapter is simply connected to the socket. , It is possible to control the power supply to the electric equipment. Therefore, it is possible to prevent the breaker from being turned off without making any changes to the existing equipment in ordinary households, etc., and when using an electronic device that cannot be restored due to sudden power-off such as a personal computer, Data loss can be prevented. Also, by attaching the outlet adapter to the outlet, it is possible to easily prevent the consumption of more than a predetermined amount of power,
It is also possible to save power.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing an embodiment of a power consumption detection control system according to the present invention.

FIG. 2 is a perspective view showing an appearance of an embodiment of the outlet adapter of the present invention.

FIG. 3 is a block diagram showing an internal configuration of an embodiment of the outlet adapter of the present invention.

FIG. 4 is a timing chart showing an example of transfer of load current data between outlet adapters.

FIG. 5 is a perspective view showing the appearance of another embodiment of the outlet adapter of the present invention.

FIG. 6 is a block diagram showing the internal configuration of another embodiment of the outlet adapter of the present invention.

FIG. 7 is a diagram illustrating an example of power supply to a conventional electronic device.

FIG. 8 is a diagram showing one form of a conventional power supply.

FIG. 9 is a diagram showing another embodiment of the conventional power supply.

FIG. 10 is a block diagram showing a configuration of a conventionally proposed breaker cutoff prevention device.

[Explanation of symbols]

10, 21-25, 130, 150, 161-167,
200 breakers 31 _{1 to} 35 ₃ , 42 to 44, 82, 100, 141 to
143, 171-191, 221-223 Outlet 40, 80 Outlet adapter 41, 81 Insertion plug 50, 83 Control device 51, 71-73, 86 Current measuring unit 52, 74-76, 87 A / D converter 53 RAM 54, 85 ID setting switch 55 Total current value setting switch 56 Usable current value setting switch 57, 95 Selection switch 58, 89 Display section 59 Audio circuit section 60 Speaker 61-63, 88 Relay switch 64, 90 Radio control circuit 65, 91 Transmitter 66, 67, 92, 93 Antenna 68, 94 Receiver 69, 96 Communication control circuit 84 Current setting switch 110 Uninterruptible power supply 120 Personal computer 210 Monitoring device 230 Adapter

Claims (3)

[Claims] 1. A power consumption detection control system having an outlet adapter detachably interposed between an outlet and a load device, wherein each of the outlet adapters is based on a load device connected thereto. A measurement function for measuring the load current, a transmission function for sending the load current data measured by the measurement function to another outlet adapter,
It has a function of receiving load current data transmitted from another outlet adapter, and the current value that can be used by the load device connected to the self and the measured self load current value, and for all outlets Compare the total current value that can be used by the adapter with the load current value for all outlet adapters, respectively.
A use power detection control system, wherein a display corresponding to an available current value is displayed according to the comparison result, and power supply to a predetermined load is controlled. 2. An outlet adapter detachably interposed between an outlet and a load device, the function of measuring a load current by a load device connected to the outlet adapter, and a function of transferring the measured load current data to another device. And a function of receiving load current data transmitted from another outlet adapter, and a current value usable by a load device connected thereto and the measured self value. The load current value of the and the total current value that can be used by the adapter for all outlets and the load current value of the adapter for all outlets are compared,
An outlet adapter, wherein a display corresponding to an available current value is displayed according to the comparison result, and power supply to a predetermined load is controlled. 3. An outlet adapter detachably interposed between an outlet and a load device, the outlet adapter having a function of measuring a load current by a load device connected to the outlet, and being connected to the self. A current value usable by the load device is compared with the measured own load current value, and a display corresponding to a usable current value is displayed according to the comparison result, and power supply to a predetermined load is controlled. An outlet adapter characterized by being made as described above.