JP5119503B2 - Power supply system, power supply method, and program - Google Patents

Description

  The present invention relates to a power supply system suitable for supplying power only to predetermined appropriate electrical equipment, a power supply method, and a program for realizing these on a computer.

  Many power supply systems installed in homes and offices have been devised. Some of such power supply systems are intended to prevent theft by using an electrical device that is prohibited from being used (hereinafter, referred to as “illegal electrical device” as appropriate).

  For example, in Patent Literatures 1 to 3, use is permitted in advance by determining whether or not an ID (identifier) of an electrical device is an ID associated with an electrical device that is permitted to be used in advance. A technology for supplying electric power only to the electrical equipment is disclosed. Patent Document 4 discloses a technique for specifying and managing an unauthorized electric device or the like from a current pattern at a location where all the currents flowing through a plurality of electric devices such as a distribution board are collected.

JP 2008-306840 A JP 2006-19788 A JP 2006-244818 A JP 2003-9430 A

  However, the techniques disclosed in Patent Documents 1 to 3 are techniques for an electric device such as an information home appliance in which the electric device itself can have an ID. For this reason, the technology disclosed in Patent Documents 1 to 3 cannot be applied to existing electrical devices that cannot have an ID.

  On the other hand, in the technique disclosed in Patent Document 4, since the current is measured at one place such as the power collecting portion of the distribution board, there are cases where the accuracy of specifying an unauthorized electric device is poor. In addition, since the distribution board generally collects the power of multiple plug sockets (hereinafter referred to as “plugs”) with a single cord, it is difficult to control on / off for each plug. was there. Therefore, a power supply system that can determine whether or not each of a plurality of electrical devices that are not limited to information home appliances is an unauthorized electrical device and restrict the supply of power to the unauthorized electrical device is desired. ing.

  The present invention has been made in view of the above-described problems, and implements a power supply system, a power supply method, and a power supply system suitable for supplying power only to predetermined appropriate electrical equipment on a computer. an object of the present invention is to provide a program for.

In order to achieve the above object, a power supply system according to the first aspect of the present invention includes:
For each of a plurality of electrical devices that operate with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and permission to supply power to the electrical device. Storage means for associating and storing the permission / refusal information shown;
A plug male that receives the power supply from the commercial power source through an outlet,
A plug knife that supplies the power to the connected electrical device;
According to the control signal, the plug male and the plug female are connected to supply the electric power to the electric device connected to the plug female, or the plug male and the plug female are disconnected, and the electric power of the connected electric device is connected. A relay that cuts off the supply;
Measuring means for measuring a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device;
Analyzing the measured waveform pattern to obtain power consumption characteristics of the connected electrical device; and
A specifying means for specifying device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Control means for supplying the relay with a control signal instructing this,
It is characterized by that.

In order to achieve the above object, a power supply method according to a second aspect of the present invention includes:
A power supply method executed by a power supply system including a storage unit, a plug male, a plug female, a relay, a measurement unit, an acquisition unit, a specifying unit, and a control unit,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The acquisition unit analyzes the measured waveform pattern and acquires a power consumption characteristic of the connected electrical device; and
A specifying step in which the specifying unit specifies device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
When the control means indicates that the supply of power is not permitted by the permission / rejection information stored in the storage means in association with the specified device information, the power for the connected electrical device A control step of supplying a control signal instructing to cut off the supply to the relay,
It is characterized by that.

In order to achieve the above object, a program according to the third aspect of the present invention provides:
A program for causing a computer including a storage unit, a plug male, a plug female, a relay, and a measurement unit to function as a power supply system,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The program causes the computer to
An acquisition means for analyzing the measured waveform pattern and acquiring power consumption characteristics of the connected electrical device;
A specifying means for specifying device information associated with characteristic information indicating power consumption characteristics that match the acquired power consumption characteristics among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Functioning as control means for supplying a control signal to the relay to instruct
It is characterized by that.

  According to the present invention, it is possible to provide a power supply system, a power supply method, and a program for realizing these on a computer that are suitable for supplying power only to predetermined appropriate electrical equipment. .

It is a block diagram which shows the structure of the electric power supply system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the electric power supply control apparatus which comprises the principal part of the electric power supply system which concerns on the 1st Embodiment of this invention. (A) is a figure which shows typically the characteristic information memorize | stored in the memory | storage part. (B) is a figure which shows typically the permission information memorize | stored in the memory | storage part. (C) is a figure which shows typically the waveform pattern measured by the measurement part. (D) is a figure which shows typically the characteristic information acquired by the acquisition part. It is a flowchart which shows the electric power supply control process which the electric power supply system which concerns on the 1st Embodiment of this invention performs. It is a block diagram which shows the structure of the electric power supply system which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the power supply control process which the power supply system which concerns on the 2nd Embodiment of this invention performs. It is a block diagram which shows the structure of the electric power supply system which concerns on the 3rd Embodiment of this invention. (A) is a figure which shows typically the characteristic information memorize | stored in the memory | storage part. (B) is a figure which shows typically the environmental information memorize | stored in the memory | storage part. (C) is a figure which shows typically the characteristic information acquired by the acquisition part. (D) is a figure which shows typically the environmental information detected by the detection part. It is a flowchart which shows the electric power supply control process which the electric power supply system which concerns on the 3rd Embodiment of this invention performs. It is a figure which shows typically the characteristic information memorize | stored in the memory | storage part.

  Hereinafter, a power supply system according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
First, the configuration of the power supply system 100 according to the first embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 1, the power supply system 100 includes a storage unit 101, a plug male 102, a plug female 103, a relay 104, a measurement unit 105, an acquisition unit 106, a specifying unit 107, a control unit 108, Is provided. The power supply system 100 is a system that supplies power supplied from the commercial power supply 2 via the outlet 3 to the electrical device 4. Here, when it is determined that the electric device 4 is an electric device that is not permitted to supply electric power in advance, the electric power supply system 100 blocks the supply of electric power to the electric device 4.

  The storage unit 101 includes, for each of a plurality of electric devices 4 that operate with power supplied from the commercial power supply 2, device information indicating the electric device 4, characteristic information indicating power consumption characteristics of the electric device 4, and the electric device. 4 is stored in association with permission / rejection information indicating permission / prohibition of supplying power. Device information, characteristic information, and permission / rejection information will be described later.

  The plug male 102 is supplied with electric power from the commercial power supply 2 via the outlet 3. As the plug male 102, for example, a male plug inserted into a commercially available outlet 3 can be adopted.

  The plug knife 103 supplies electric power to the connected electrical device 4. As the plug female 103, for example, a female plug into which a commercially available male plug is inserted can be adopted. The plug male 102 and the plug female 103 are connected by a copper wire or the like inside the power supply system 100 via the relay 4 and the measurement unit 105.

  The relay 104 switches the connection state between the plug male 102 and the plug female 103 according to the control signal. That is, when it is instructed to supply power to the electric device 4 by the control signal, the relay 104 is in a closed state, and the plug male 102 and the plug female 103 are connected. As a result, the power supplied to the plug male 102 is supplied to the electric device 4 connected to the plug female 103. On the other hand, when it is instructed not to supply power to the electrical device 4 by the control signal, the relay 104 is in an open state, and the plug male 102 and the plug female 103 are disconnected. Thereby, the supply of the electric power supplied to the plug male 102 to the electric device 4 connected to the plug female 103 is cut off.

  The measurement unit 105 measures the waveform pattern of the power consumption of the electrical device 4 when power is supplied to the electrical device 4. For example, the measurement unit 105 samples a voltage value applied to the electrical device 4 and a current value supplied to the electrical device 4 at a predetermined period, and measures a waveform pattern of power consumption. As the measurement unit 105, for example, a known single-phase wattmeter can be used.

  The acquisition unit 106 analyzes the waveform pattern measured by the measurement unit 105 and acquires the power consumption characteristics of the electrical device 4. Here, the power consumption characteristics are electrical characteristics such as a maximum value, a minimum value, an average value, or a power factor of power consumption.

  The specifying unit 107 specifies device information associated with the characteristic information indicating the power consumption characteristic that matches the power consumption characteristic acquired by the acquisition unit 106 among the device information stored in the storage unit 101. Note that the acquired power consumption characteristic matches the stored power consumption characteristic when the acquired power consumption characteristic is similar to the stored power consumption characteristic (for example, depending on the acquired power consumption characteristic). The ratio between the represented value and the value represented by the stored characteristic information is within a predetermined threshold range.

  When the permission / rejection information stored in the storage unit 101 in association with the device information specified by the specifying unit 107 indicates that the control unit 108 does not permit the power supply, the control unit 108 A control signal instructing to cut off the supply is supplied to the relay 104. In addition, when the permission / refusal information indicates that power supply is not permitted, the control unit 108 outputs message information indicating a message that “an electric device that is not permitted to be used is used”. 5 is supplied. In addition, when the characteristic information indicating the power consumption characteristic that matches the acquired power consumption characteristic is not stored in the storage unit 101 (for example, when the device information is not supplied from the specifying unit 107), the control unit 108 " Message information indicating a message that “an unknown electrical device is being used” is supplied to the output unit 5. On the other hand, when the control unit 108 indicates that the supply of power is permitted by the permission / rejection information stored in the storage unit 101 in association with the device information specified by the specifying unit 107, the control unit 108 A control signal instructing to supply power is supplied to the relay 104. The output unit 5 presents the message information supplied from the control unit 108 to the user. The output unit 5 is configured by, for example, a liquid crystal display.

  Next, with reference to FIG. 2, the physical configuration of the main part of the power supply system 100 will be described. Here, the main part of the power supply system 100 includes, for example, a storage unit 101, an acquisition unit 106, a specification unit 107, and a control unit 108. Hereinafter, the main part of the power supply system 100 will be referred to as a power supply control device 200 as appropriate. The power supply control device 200 may be configured by an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or the like, but in the present embodiment, as shown in FIG. It is assumed that it is configured.

  As shown in FIG. 2, the power supply control device 200 physically includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a hard disk device 14, and the like. , An input device 15, a display control device 16, and a communication device 17. Each component provided in the power supply control apparatus 200 is connected via a bus.

  The CPU 11 controls the operation of the entire power supply control device 200 according to a program stored in the hard disk device 14. The CPU 11 is connected to each component via a bus, and exchanges control signals and data.

  The ROM 12 stores an IPL (Initial Program Loader) that is executed immediately after the power is turned on. After the IPL is executed, the CPU 11 reads the program stored in the hard disk device 14 to the RAM 13 and executes it.

  RAM13 temporarily stores data and programs. The RAM 13 temporarily stores a program read from the hard disk device 14, data necessary for power supply control processing, and the like.

  The hard disk device 14 stores a program executed by the CPU 11. The hard disk device 14 also stores data necessary for power supply control processing.

  The input device 15 receives an instruction input from the user under the control of the CPU 11. Input device 15 may, for example, a keyboard and a mouse.

  The display control device 16 generates screen information to be displayed on the output unit 5 under the control of the CPU 11 and supplies the generated screen information and the like to the output unit 5.

  The communication device 17 communicates with an external device through wireless communication or wired communication under the control of the CPU 11. The communication device 17 includes, for example, a network card, a USB (Universal Serial Bus) port, and the like.

  Note that the storage unit 101 includes, for example, a hard disk device 14. Further, the acquisition unit 106 and the specifying unit 107 are configured by, for example, the CPU 11, the ROM 12, and the RAM 13. And the control part 108 is comprised by CPU11, ROM12, RAM13, and the display control apparatus 16, for example.

  Here, information stored in the storage unit 101 will be described with reference to FIG.

  FIG. 3A schematically shows characteristic information stored in the storage unit 101. The characteristic information is stored in the storage unit 101 in association with the device information and the ID.

  The device information is information indicating the electric device 4 that operates with the power supplied from the commercial power source 2, and is, for example, a character string that represents the name of the electric device 4. In the example shown in FIG. 3A, the device information is “Company A PC”, “Company B PC”, “C Company Fan”, and “D Company Heater”.

  The ID is information indicating an identifier assigned to the device information associated with the ID. For example, the ID is a numerical value indicating the order in which the device information is stored in the storage unit 101. In the example shown in FIG. 3A, the IDs are “1”, “10”, “45”, and “85”.

  The characteristic information is information indicating the power consumption characteristic of the electric device 4 indicated by the device information associated with the characteristic information. For example, the characteristic information is a numerical value indicating the power consumption characteristic of the electric device 4. In the example shown in FIG. 3A, the characteristic information includes “maximum value 10 W, minimum value 5 W”, “maximum value 15 W, minimum value 10 W”, “maximum value 500 W, minimum value 300 W”, and “maximum value 1000 W,” The minimum value is 800 W ”. The characteristic information may be anything as long as it indicates the power consumption characteristics of the electric device 4. For example, the characteristic information is information indicating a maximum value, a minimum value, an average value, a power factor, or the like of the power consumption of the electric device 4 when the electric device 4 is in operation.

  FIG. 3B schematically shows permission / rejection information stored in the storage unit 101. The permission / rejection information is stored in the storage unit 101 in association with the device information and the ID.

  The permission information is information indicating whether or not to permit the supply of power to the electric device 4 indicated by the device information associated with the permission information, for example, a character string or a numerical value indicating permission or non-permission. . In the example shown in FIG. 3B, the permission / denial information is a character string “permitted” or “not permitted”.

  Note that both the characteristic information and permission / rejection information are stored in the storage unit 101 in association with the device information and the ID. Therefore, it can be considered that the characteristic information and permission / rejection information are stored in the storage unit 101 in association with each other. Further, the device information and the ID can be considered as information for specifying the electric device 4, but are not necessarily stored in the storage unit 101. In this case, for example, the characteristic information itself can be considered as information for specifying the electrical device 4.

  FIG. 3C schematically shows a waveform pattern measured by the measurement unit 105. This waveform pattern is a waveform pattern representing the power consumption of the electrical device 4 when the electrical device 4 is used. In the present embodiment, the waveform pattern indicates a power waveform pattern, but both the voltage waveform pattern and the current waveform pattern may be measured by the measurement unit 105.

  FIG. 3D schematically shows the characteristic information acquired by the acquisition unit 106. The characteristic information is information acquired from the waveform pattern shown in FIG. 3C and is information indicating the electrical characteristics of the electric device 4. Also, the acquired characteristic information is compared by the specifying unit 107 with whether or not it matches the stored characteristic information. For example, when the ratio of the maximum value of power consumption and the ratio of the minimum value of power consumption are both within a predetermined threshold range (for example, within ± 10%), it is determined that the characteristic information matches. Note that the characteristic information illustrated in FIG. 3D is an example that does not match any of the characteristic information illustrated in FIG.

  Next, the power supply control process executed by the power supply system 100 will be described using the flowchart shown in FIG. When the power is turned on, the power supply system 100 executes a power supply control process shown in FIG. It is assumed that the characteristic information shown in FIG. 3A and the permission / refusal information shown in FIG. 3B are stored in the hard disk device 14 by the user or the like before the power supply control process is executed.

  First, the CPU 11 turns on the relay 104 (step S101). Specifically, the CPU 11 supplies a control signal (hereinafter referred to as “relay-on instruction signal”) that instructs the relay 104 to place the relay 104 in a conductive state. As a result, the relay 104 becomes conductive, and electric power is supplied to the electrical device 4.

  When the process of step S101 is completed, the CPU 11 measures the waveform pattern (step S102). Specifically, the CPU 11 samples the value of the voltage applied to the electrical device 4 and the value of the current flowing through the electrical device 4 at a predetermined cycle, and the waveform of the power supplied to the electrical device 4. Get the pattern. Information indicating a waveform pattern is stored etc. RAM 13.

  When the process of step S102 is completed, the CPU 11 analyzes the waveform pattern acquired in step S102 and acquires power consumption characteristics (step S103). Characteristic information indicating the power consumption characteristic is stored in the RAM 13 or the like.

  When the process of step S103 is completed, the CPU 11 searches for an electric device having a matching power consumption characteristic (step S104). Specifically, first, the CPU 11 searches the characteristic information stored in the hard disk device 14 for characteristic information indicating a power consumption characteristic that matches the power consumption characteristic acquired in step S103. Then, the CPU 11 specifies the electric device 4 indicated by the device information stored in the hard disk device 14 in association with the searched characteristic information.

  When the process of step S104 is completed, the CPU 11 determines whether or not the electric device 4 is specified in step S104 (step S105). If the CPU 11 determines that the electrical device 4 has not been identified (step S105: NO), the CPU 11 outputs that the unknown electrical device 4 has been stolen (step S106). Specifically, the CPU 11 outputs to the output unit 5 a message screen indicating that “the unknown electric device 4 has been stolen”. As a result, the output unit 5 presents to the user that “the unknown electric device 4 has been stolen”.

  On the other hand, when determining that the electrical device 4 has been identified (step S105: YES), the CPU 11 determines whether or not the identified electrical device 4 is the permitted electrical device 4 (step S107). When the CPU 11 determines that the specified electric device 4 is the permitted electric device 4 (step S107: YES), the CPU 11 returns the process to the process of acquiring the waveform pattern (step S102).

  On the other hand, when the CPU 11 determines that the electric device 4 is not the permitted electric device 4 (step S107: NO), the CPU 11 outputs that the electric device 4 that is not permitted has been stolen (step S108). Specifically, the CPU 11 outputs a message screen indicating that “the electric device 4 that is not permitted has been stolen” to the output unit 5. As a result, the output unit 5 presents to the user that “the electric device 4 that is not permitted has been stolen”.

  When completing the process of step S106 or the process of step S108, the CPU 11 turns off the relay 104 (step S109). Specifically, the CPU 11 supplies the relay 104 with a control signal (hereinafter referred to as “relay off instruction signal”) that instructs the relay 104 to be in a non-conductive state. Thereby, the relay 104 becomes a non-conduction state, and supply of electric power to the electric device 4 is interrupted.

  CPU11 complete | finishes an electric power supply control process, after complete | finishing the process of step S109. When the power supply system 100 is restarted by the user, the CPU 11 executes the power supply control process shown in FIG. 4 again.

  According to the power supply system 100 according to the present embodiment, when it is determined that an unauthorized electrical device 4 or an unregistered electrical device 4 is connected, power is supplied to the electrical device 4. Automatically shut off. As a result, it is possible to prevent theft by the unauthorized electrical device 4 or the unregistered electrical device 4.

(Second Embodiment)
Next, the power supply system 120 according to the second embodiment of the present invention will be described. In addition, about the structure and operation | movement similar to the electric power supply system 100 which concerns on 1st Embodiment, description is abbreviate | omitted or simplified suitably.
First, the configuration of the power supply system 120 according to the second embodiment of the present invention will be described with reference to FIG.

  As illustrated in FIG. 5, the power supply system 120 includes a server 121 and a tap 122. The server 121 includes a storage unit 101, an acquisition unit 106, a specification unit 107, a control unit 108, and an in-server communication unit 109. The tap 122 includes a plug male 102, a plug female 103, a relay 104, a measurement unit 105, and an in-tap communication unit 109. The power supply system 120 is a system that supplies power supplied from the commercial power supply 2 via the outlet 3 to the electrical device 4. Here, when it is determined that the electric device 4 is an electric device that is not permitted to supply electric power in advance, the electric power supply system 120 blocks the supply of electric power to the electric device 4.

  The power supply system 120 is divided into the server 121 and the tap 122, and the server 121 includes the intra-server communication unit 109, and the tap 122 includes the intra-tap communication unit 110. It is the same composition as. Therefore, hereinafter, only portions where the power supply system 120 is different from the power supply system 100 will be described. The server 121 can be physically configured to be equivalent to the power supply control device 200 illustrated in FIG. 2, for example. Further, the tap 122 can include, for example, the CPU 11, the ROM 12, the RAM 13, and the communication device 17 illustrated in FIG. Hereinafter, in the present embodiment, the CPU 11, ROM 12, RAM 13, and communication device 17 included in the server 121 are simply referred to as “CPU 11”, “ROM 12”, “RAM 13”, and “communication device 17”, and the CPU 11 included in the tap 122. ROM 12, RAM 13, and communication device 17 are referred to as “CPU 11 in tap 122”, “ROM 12 in tap 122”, “RAM 13 in tap 122”, and “communication device 17 in tap 122”.

  The intra-server communication unit 109 exchanges data with the intra-tap communication unit 110. Specifically, the intra-server communication unit 109 supplies the waveform pattern supplied from the intra-tap communication unit 110 to the acquisition unit 106. Further, the intra-server communication unit 109 supplies the control signal supplied from the control unit 108 to the intra-tap communication unit 110.

  The in-tap communication unit 110 exchanges data with the in-server communication unit 109. Specifically, the in-tap communication unit 110 supplies the waveform pattern supplied from the measurement unit 105 to the in-server communication unit 109. The in-tap communication unit 110 supplies the control signal supplied from the in-server communication unit 109 to the relay 104.

  The intra-server communication unit 109 and the intra-tap communication unit 110 are configured by, for example, the communication device 17 illustrated in FIG. 2 and transmit / receive data to / from each other by wireless communication or wired communication. The in-server communication unit 109 and the in-tap communication unit 110 appropriately convert data in a normal format into data in a format suitable for communication, or convert data in a format suitable for communication into a normal format. Or reversely convert to.

  Next, the power supply control process executed by the power supply system 120 will be described using the flowchart shown in FIG. The power supply system 120 executes the power supply control process shown in FIG. 6 when the power is turned on. It is assumed that the characteristic information shown in FIG. 3A and the permission / refusal information shown in FIG. 3B are stored in the hard disk device 14 by the user or the like before the power supply control process is executed.

  First, the CPU 11 transmits a relay-on instruction signal to the communication device 17 in the tap 122 via the communication device 17 (step S201).

  On the other hand, the communication device 17 in the tap 122 receives a relay-on instruction signal from the communication device 17 (step S202).

  Next, the CPU 11 in the tap 122 turns on the relay 104 (step S203). Specifically, the CPU 11 in the tap 122 supplies a relay-on instruction signal to the relay 104. As a result, the relay 104 becomes conductive, and electric power is supplied to the electrical device 4.

  When the process of step S203 is completed, the CPU 11 in the tap 122 measures the waveform pattern (step S204). Specifically, the CPU 11 in the tap 122 samples the value of the voltage applied to the electric device 4 and the value of the current flowing through the electric device 4 at a predetermined period, and supplies the sampled value to the electric device 4. Get the waveform pattern of the current power. Information indicating the waveform pattern is stored in the RAM 13 in the tap 122 or the like.

  When the process of step S204 is completed, the CPU 11 in the tap 122 transmits the waveform pattern acquired in step S204 to the communication device 17 via the communication device 17 in the tap 122 (step S205).

  On the other hand, the communication device 17 receives the waveform pattern from the communication device 17 in the tap 122 (step S206).

  When the process of step S206 is completed, the CPU 11 analyzes the waveform pattern received in step S206 and acquires the power consumption characteristic (step S207). Characteristic information indicating the power consumption characteristic is stored in the RAM 13 or the like.

  When the process of step S207 is completed, the CPU 11 searches for an electric device having a matching power consumption characteristic (step S208). Specifically, first, the CPU 11 searches the characteristic information stored in the hard disk device 14 for characteristic information indicating a power consumption characteristic that matches the power consumption characteristic received in step S206. Then, the CPU 11 specifies the electric device 4 indicated by the device information stored in the hard disk device 14 in association with the searched characteristic information.

  When the process of step S208 is completed, the CPU 11 determines whether or not the electrical device 4 is specified in step S208 (step S209). When the CPU 11 determines that the electric device 4 is not specified (step S209: NO), the CPU 11 outputs that the unknown electric device 4 has been stolen (step S210). Specifically, the CPU 11 outputs to the output unit 5 a message screen indicating that “the unknown electric device 4 has been stolen”. As a result, the output unit 5 presents to the user that “the unknown electric device 4 has been stolen”.

  On the other hand, when determining that the electrical device 4 has been identified (step S209: YES), the CPU 11 determines whether or not the identified electrical device 4 is the permitted electrical device 4 (step S211). When the CPU 11 determines that the specified electric device 4 is the permitted electric device 4 (step S211: YES), the CPU 11 returns the process to the process of acquiring the waveform pattern (step S204).

  On the other hand, when the CPU 11 determines that the electric device 4 is not the permitted electric device 4 (step S211: NO), the CPU 11 outputs that the electric device 4 that is not permitted has been stolen (step S212). Specifically, the CPU 11 outputs a message screen indicating that “the electric device 4 that is not permitted has been stolen” to the output unit 5. As a result, the output unit 5 presents to the user that “the electric device 4 that is not permitted has been stolen”.

  CPU11 will transmit a relay OFF instruction | indication signal to the communication apparatus 17 in the tap 122 via the communication apparatus 17, if the process of step S210 or the process of step S212 is completed (step S213).

  On the other hand, the communication device 17 in the tap 122 receives the relay-off instruction signal from the communication device 17 (step S214).

  Next, the CPU 11 in the tap 122 turns off the relay 104 (step S215). Specifically, the CPU 11 in the tap 122 supplies a relay-off instruction signal to the relay 104. Thereby, the relay 104 becomes a non-conduction state, and supply of electric power to the electric device 4 is interrupted.

  CPU11 complete | finishes a power supply control process, after complete | finishing the process of step S215. When the power supply system 100 is restarted by the user, the CPU 11 executes the power supply control process shown in FIG. 6 again.

  According to the power supply system 120 according to the present embodiment, when it is determined that an unauthorized electrical device 4 or an unregistered electrical device 4 is connected, power is supplied to the electrical device 4. It is automatically shut off. As a result, it is possible to prevent theft by the unauthorized electrical device 4 or the unregistered electrical device 4. Note that the tap 122 can be smaller and less expensive than the server 121. Therefore, for example, by installing the tap 122 indoors and installing the server 121 outdoors, an operation that does not compress the indoor space is possible.

(Third embodiment)
Next, a power supply system 130 according to the third embodiment of the present invention will be described. In addition, about the structure and operation | movement similar to the electric power supply systems 100 and 120 which concern on 1st, 2 embodiment, description is abbreviate | omitted or simplified suitably.
First, the configuration of a power supply system 130 according to the third embodiment of the present invention will be described with reference to FIG.

  As illustrated in FIG. 7, the power supply system 130 includes a server 131 and a tap 132. The server 131 includes a storage unit 101, an acquisition unit 106, a specification unit 107, a control unit 108, and an in-server communication unit 109. The tap 132 includes a plug male 102, a plug female 103, a relay 104, a measurement unit 105, and an in-tap communication unit 109. The power supply system 130 is a system that supplies power supplied from the commercial power source 2 via the outlet 3 to the electrical device 4. Here, when it is determined that the electrical device 4 is an electrical device that is not permitted to supply power in advance, the power supply system 130 cuts off the supply of power to the electrical device 4.

  The power supply system 130 has basically the same configuration as the power supply system 120. Therefore, hereinafter, only portions where the power supply system 130 is different from the power supply system 120 will be described. Note that the server 131 can be physically configured to be equivalent to the power supply control device 200 illustrated in FIG. 2, for example. Further, the tap 132 can include, for example, the CPU 11, the ROM 12, the RAM 13, and the communication device 17 illustrated in FIG. Hereinafter, in this embodiment, the CPU 11, the ROM 12, the RAM 13, and the communication device 17 included in the server 131 are simply referred to as “CPU 11”, “ROM 12”, “RAM 13”, and “communication device 17”, and the CPU 11, The ROM 12, RAM 13, and communication device 17 are referred to as “CPU 11 in tap 132”, “ROM 12 in tap 132”, “RAM 13 in tap 132”, and “communication device 17 in tap 132”.

  The storage unit 101 includes, for each of a plurality of electric devices 4 that operate with power supplied from the commercial power supply 2, device information indicating the electric device 4, characteristic information indicating power consumption characteristics of the electric device 4, and the electric device. 4 is stored in association with permission / rejection information indicating permission / prohibition of supplying power and environment information indicating an environment assumed as an environment around the electric device during operation of the electric device. The environmental information will be described later.

  The specifying unit 107 is device information associated with characteristic information indicating the power consumption characteristic that matches the power consumption characteristic acquired by the acquisition unit 106 among the device information stored in the storage unit 101. The device information associated with the environment information that matches the environment information detected by the detection unit 111 is specified.

  The intra-server communication unit 109 exchanges data with the intra-tap communication unit 110. Specifically, the in-server communication unit 109 supplies the waveform pattern supplied from the in-tap communication unit 110 to the acquisition unit 106 and supplies the environment information supplied from the in-tap communication unit 110 to the specifying unit 107. Further, the intra-server communication unit 109 supplies the control signal supplied from the control unit 108 to the intra-tap communication unit 110.

  The in-tap communication unit 110 exchanges data with the in-server communication unit 109. Specifically, the in-tap communication unit 110 supplies the waveform pattern supplied from the measurement unit 105 and the environment information supplied from the detection unit 111 to the in-server communication unit 109. The in-tap communication unit 110 supplies the control signal supplied from the in-server communication unit 109 to the relay 104.

  The intra-server communication unit 109 and the intra-tap communication unit 110 are configured by, for example, the communication device 17 illustrated in FIG. 2 and transmit / receive data to / from each other by wireless communication or wired communication. The intra-server communication unit 109 and the intra-tap communication unit 110 appropriately convert data in a normal format to data in a format suitable for communication, or convert data from a format suitable for communication into normal data when transmitting and receiving data. Or reverse conversion to the data of the format.

  Detection unit 111 acquires environment information indicating the surrounding environment. The environmental information is, for example, information indicating temperature, humidity, illuminance, and wind power around the electric device 4 when the electric device 4 is operating. The detection unit 111 includes, for example, a thermometer, a hygrometer, an illuminance meter, a wind sensor, and the like.

  Here, information stored in the storage unit 101 will be described with reference to FIG.

  FIG. 8A schematically shows characteristic information stored in the storage unit 101. The characteristic information is stored in the storage unit 101 in association with the device information and the ID. FIG. 8A shows an example in which the characteristic information associated with “D company heater” and the characteristic information associated with “F company light” show the same value.

  FIG. 8B schematically shows environment information stored in the storage unit 101. The environment information is stored in the storage unit 101 in association with the device information and the ID.

  The environment information is information indicating an environment assumed as an environment around the electrical device 4 when the electrical device 4 indicated by the device information associated with the environment information is operating. This is a character string or numerical value indicating temperature, humidity, illuminance, and wind power around. In the example shown in FIG. 8B, the environment information is a character string including numerical values such as “no change” and “wind speed change” and “illuminance 50 lx” and “illuminance 1000 lx”.

  The characteristic information, permission / denial information, and environment information are all stored in the storage unit 101 in association with the device information and the ID. Therefore, it can be considered that the characteristic information, permission / denial information, and environment information are associated with each other and stored in the storage unit 101. Further, the device information and the ID can be considered as information for specifying the electric device 4, but are not necessarily stored in the storage unit 101. In this case, for example, the characteristic information and the environment information itself can be considered as information for specifying the electrical device 4.

  FIG. 8C schematically shows the characteristic information acquired by the acquisition unit 106. The characteristic information is information acquired from the waveform pattern shown in FIG. 3C and is information indicating the electrical characteristics of the electric device 4.

  FIG. 8D schematically shows the environment information acquired by the detection unit 111. FIG. 8D shows an example in which the environmental information is “illuminance 50 lx”.

  Here, the acquired characteristic information is compared with the stored characteristic information by the specifying unit 107. For example, if the ratio of the maximum value of power consumption and the ratio of the minimum value of power consumption are both within a predetermined threshold range (for example, within 10%), it is determined that the characteristic information matches. The characteristic information shown in FIG. 8C is an example that matches the two pieces of characteristic information shown in FIG. In this case, the electrical device 4 connected to the plug knife 103 is not specified only by the characteristic information.

  Therefore, the identifying unit 107 further compares whether or not the acquired environment information matches the stored environment information. For example, when the illuminance ratio represented by the environmental information is within a predetermined threshold range (for example, within ± 10%), it is determined that the environmental information matches. The environment information shown in FIG. 8D is an example that matches the environment information associated with “D company heater” in the environment information shown in FIG. That is, when the characteristic information shown in FIG. 8C and the environment information shown in FIG. 8D are acquired, “D company heater” is specified as the device information. Thus, in the present embodiment, device information is specified by both characteristic information and environment information.

  Next, the power supply control process executed by the power supply system 130 will be described using the flowchart shown in FIG. When the power is turned on, the power supply system 130 executes the power supply control process shown in FIG. The permission information shown in FIG. 3B, the characteristic information shown in FIG. 8A, and the environment information shown in FIG. 8B are stored on the hard disk by the user before the power supply control process is executed. It is assumed that it is stored in the device 14.

  First, the CPU 11 transmits a relay-on instruction signal to the communication device 17 in the tap 132 via the communication device 17 (step S301).

  On the other hand, the communication device 17 in the tap 132 receives the relay-on instruction signal from the communication device 17 (step S302).

  Next, the CPU 11 in the tap 132 turns on the relay 104 (step S303). Specifically, the CPU 11 in the tap 132 supplies a relay on instruction signal to the relay 104. As a result, the relay 104 becomes conductive, and electric power is supplied to the electrical device 4.

  When the process of step S303 is completed, the CPU 11 in the tap 132 measures the waveform pattern (step S304). Specifically, the CPU 11 in the tap 132 samples the value of the voltage applied to the electric device 4 and the value of the current flowing through the electric device 4 at a predetermined cycle, and supplies the sample to the electric device 4. Get the waveform pattern of the current power. In addition, the CPU 11 in the tap 132 acquires environment information representing the environment around the electric device 4 from the detection unit 111. Information indicating the waveform pattern and environment information are stored in the RAM 13 in the tap 132 or the like.

  When the processing in step S304 is completed, the CPU 11 in the tap 132 transmits the waveform pattern and environment information acquired in step S304 to the communication device 17 via the communication device 17 in the tap 132 (step S305). .

  On the other hand, the communication device 17 receives the waveform pattern and the environment information from the communication device 17 in the tap 132 (step S306).

  When the process of step S306 is completed, the CPU 11 analyzes the waveform pattern received in step S306 and acquires the power consumption characteristic (step S307). Characteristic information indicating the power consumption characteristic is stored in the RAM 13 or the like.

  When the process of step S307 is completed, the CPU 11 searches for an electric device whose power consumption characteristic matches the environmental information (step S308). Specifically, first, the CPU 11 searches the characteristic information stored in the hard disk device 14 for characteristic information indicating a power consumption characteristic that matches the power consumption characteristic received in step S306. Furthermore, the CPU 11 searches for environmental information that matches the environmental information received in step S306 among the environmental information stored in the hard disk device 14. Then, the CPU 11 specifies the electric device 4 indicated by the device information in which both the characteristic information and the environment information match among the device information stored in the hard disk device 14.

  When the process of step S308 is completed, the CPU 11 determines whether or not the electric device 4 is specified in step S308 (step S309). If the CPU 11 determines that the electrical device 4 is not specified (step S309: NO), the CPU 11 outputs that the unknown electrical device 4 has been stolen (step S310). Specifically, the CPU 11 outputs to the output unit 5 a message screen indicating that “the unknown electric device 4 has been stolen”. As a result, the output unit 5 presents to the user that “the unknown electric device 4 has been stolen”.

  On the other hand, when determining that the electrical device 4 has been identified (step S309: YES), the CPU 11 determines whether or not the identified electrical device 4 is the permitted electrical device 4 (step S311). If the CPU 11 determines that the specified electrical device 4 is the permitted electrical device 4 (step S311: YES), the CPU 11 returns the process to the process of acquiring the waveform pattern and the environment information (step S304).

  On the other hand, when the CPU 11 determines that the electric device 4 is not the permitted electric device 4 (step S311: NO), the CPU 11 outputs that the electric device 4 that is not permitted has been stolen (step S312). Specifically, the CPU 11 outputs a message screen indicating that “the electric device 4 that is not permitted has been stolen” to the output unit 5. As a result, the output unit 5 presents to the user that “the electric device 4 that is not permitted has been stolen”.

  CPU11 will transmit a relay OFF instruction | indication signal to the communication apparatus 17 in the tap 132 via the communication apparatus 17, if the process of step 310 or the process of step S312 is completed (step S313).

  On the other hand, the communication device 17 in the tap 132 receives the relay-off instruction signal from the communication device 17 (step S314).

  Next, the CPU 11 in the tap 132 turns off the relay 104 (step S315). Specifically, the CPU 11 in the tap 132 supplies a relay-off instruction signal to the relay 104. Thereby, the relay 104 becomes a non-conduction state, and supply of electric power to the electric device 4 is interrupted.

  CPU11 complete | finishes a power supply control process, after complete | finishing the process of step S315. When the power supply system 100 is restarted by the user, the CPU 11 executes the power supply control process shown in FIG. 9 again.

  According to the power supply system 130 according to the present embodiment, when it is determined that an unauthorized electrical device 4 or an unregistered electrical device 4 is connected, power is supplied to the electrical device 4. It is automatically shut off. As a result, it is possible to prevent theft by the unauthorized electrical device 4 or the unregistered electrical device 4. Note that the tap 132 can be smaller and less expensive than the server 131. Therefore, for example, by installing the tap 132 indoors and installing the server 131 outdoors, it is possible to operate without pressing the indoor space. Furthermore, in the present embodiment, the electric device 4 is specified by the characteristic information and the environment information. For this reason, even if the electrical device 4 is not specified only by the characteristic information, the electrical device 4 is specified by the environmental information.

  The power supply system according to the present invention is not limited to the configuration described in the first to third embodiments. For example, the characteristic information may be a waveform pattern itself as shown in FIG. In this case, for example, a sampled numerical value group or function representing a voltage value, a current value, or a power value is stored in the hard disk device 14 in association with the device information. Then, the numerical value group or function stored in the hard disk device 14 is compared with the numerical value group or function acquired by the measurement unit 105.

  In the first to third embodiments, an example in which characteristic information, permission / denial information, environment information, and the like are stored in the same storage device has been described. These pieces of information may be stored in separate storage devices.

  In the first to third embodiments, only the electric device indicated by the device information stored in the storage device in association with permission / denial information permitting power supply is permitted to be supplied with power. An example was given. However, the electrical device that permits the supply of power may be set in any manner. For example, it may be permitted to supply power to all electrical devices indicated by the device information stored in the storage device. In this case, the user registers in the storage device only information related to the electrical device that is permitted to supply power. In this case, permission information may not be stored in the storage device. In addition, it may be permitted to supply power to all electrical devices other than the electrical device indicated by the device information stored in the storage device. In this case, the user registers only the information related to the electric device that is not permitted to supply power in the storage device. In this case, permission information may not be stored in the storage device.

  In the first to third embodiments, an example is shown in which it is determined that the characteristic information and the environmental information match when the ratio of the numerical values indicated in the characteristic information and the environmental information is within a predetermined threshold range. However, it may be determined that the characteristic information and the environmental information match when the difference between the numerical values indicated in the characteristic information and the environmental information is within a predetermined threshold.

  In the first to third embodiments, an example in which there is one electrical device has been described. However, the present invention can also be applied when there are a plurality of electrical devices. In this case, for example, a plug male, a plug female, a measurement unit, a relay, and the like are provided for each electric device, and the above-described power supply control process is executed for each electric device. According to such a configuration, it is possible to supply power or cut off power for each electrical device, that is, for each plug.

  It should be noted that the power supply system according to the present invention can be realized by using a normal computer system without using a dedicated system. For example, a computer readable recording such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), or an MO (Magneto Optical Disk) is recorded on a computer. You may comprise the electric power supply system which performs the above-mentioned process by memorize | storing and distributing to a medium and installing this in a computer system.

  Furthermore, the program may be stored in a disk device or the like included in a server device on the Internet, and may be downloaded onto a computer by being superimposed on a carrier wave, for example.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Supplementary note 1) For each of a plurality of electric devices that operate with electric power supplied from a commercial power supply, supply device information indicating the electric device, characteristic information indicating power consumption characteristics of the electric device, and supplying electric power to the electric device. Storage means for associating and storing permission information indicating permission or disapproval of things,
A plug male that receives the power supply from the commercial power source through an outlet,
A plug knife that supplies the power to the connected electrical device;
According to the control signal, the plug male and the plug female are connected to supply the electric power to the electric device connected to the plug female, or the plug male and the plug female are disconnected, and the electric power of the connected electric device is connected. A relay that cuts off the supply;
Measuring means for measuring a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device;
Analyzing the measured waveform pattern to obtain power consumption characteristics of the connected electrical device; and
A specifying means for specifying device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Control means for supplying the relay with a control signal instructing this,
A power supply system characterized by that.

(Supplementary Note 2) The power consumption characteristic is one of a maximum value, a minimum value, an average value, and a power factor of the power consumption of the connected electrical device.
The power supply system according to supplementary note 1, wherein:

(Supplementary Note 3) The power supply system
A server including the storage unit, the acquisition unit, and the control unit, and a tap including the plug male, the plug female, the relay, and the measurement unit;
The server includes in-server communication means for communicating with the tap,
The tap includes in-tap communication means for communicating with the server.
The power supply system according to appendix 1 or 2, characterized in that.

(Additional remark 4) It further has a detecting means for detecting environmental information indicating the surrounding environment,
The storage means includes, for each of the plurality of electrical devices, the device information, the characteristic information, the permission / denial information, and environment information indicating an environment assumed as an environment around the electrical device when the electrical device is operating Are associated and stored,
The specifying unit is device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information, and the detected environment information Identify the device information associated with the environment information that matches
The power supply system according to any one of appendices 1 to 3, characterized in that:

(Supplementary Note 5) A power supply method executed by a power supply system including a storage unit, a plug male, a plug female, a relay, a measurement unit, an acquisition unit, a specifying unit, and a control unit,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The acquisition unit analyzes the measured waveform pattern and acquires a power consumption characteristic of the connected electrical device; and
A specifying step in which the specifying unit specifies device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
When the control means indicates that the supply of power is not permitted by the permission / rejection information stored in the storage means in association with the specified device information, the power for the connected electrical device A control step of supplying a control signal instructing to cut off the supply to the relay,
The power supply method characterized by the above-mentioned.

(Supplementary Note 6) A program for causing a computer including a storage unit, a plug male, a plug female, a relay, and a measurement unit to function as a power supply system,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The program causes the computer to
An acquisition means for analyzing the measured waveform pattern and acquiring power consumption characteristics of the connected electrical device;
A specifying means for specifying device information associated with characteristic information indicating power consumption characteristics that match the acquired power consumption characteristics among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Functioning as control means for supplying a control signal to the relay to instruct
A program characterized by that.

  The present invention can be applied to a power supply system that supplies power only to predetermined appropriate electrical equipment.

2 Commercial power supply 3 Outlet 4 Electrical equipment 5 Output unit 11 CPU
12 ROM
13 RAM
14 hard disk device 15 input device 16 display control device 17 communication device 100, 120, 130 power supply system 101 storage unit 102 plug male 103 plug female 104 relay 105 measurement unit 106 acquisition unit 107 identification unit 108 control unit 109 in-server communication unit 110 in tap Communication unit 111 Detection unit 121, 131 Server 122, 132 Tap 200 Power supply control device

Claims (6)

For each of a plurality of electrical devices that operate with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and permission to supply power to the electrical device. Storage means for associating and storing the permission / refusal information shown;
A plug male that receives the power supply from the commercial power source through an outlet,
A plug knife that supplies the power to the connected electrical device;
According to the control signal, the plug male and the plug female are connected to supply the electric power to the electric device connected to the plug female, or the plug male and the plug female are disconnected, and the electric power of the connected electric device is connected. A relay that cuts off the supply;
Measuring means for measuring a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device;
Analyzing the measured waveform pattern to obtain power consumption characteristics of the connected electrical device; and
A specifying means for specifying device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Control means for supplying the relay with a control signal instructing this,
A power supply system characterized by that. The power consumption characteristic is one of a maximum value, a minimum value, an average value, and a power factor of the power consumption of the connected electrical device.
The power supply system according to claim 1. The power supply system includes:
A server including the storage unit, the acquisition unit, and the control unit, and a tap including the plug male, the plug female, the relay, and the measurement unit;
The server includes in-server communication means for communicating with the tap,
The tap includes in-tap communication means for communicating with the server.
The power supply system according to claim 1, wherein the power supply system is a power supply system. It further comprises detection means for detecting environmental information indicating the surrounding environment,
The storage means includes, for each of the plurality of electrical devices, the device information, the characteristic information, the permission / denial information, and environment information indicating an environment assumed as an environment around the electrical device when the electrical device is operating Are stored in association with each other.
The specifying unit is device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information, and the detected environment information Identify the device information associated with the environment information that matches
The power supply system according to any one of claims 1 to 3. A power supply method executed by a power supply system including a storage unit, a plug male, a plug female, a relay, a measurement unit, an acquisition unit, a specifying unit, and a control unit,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The acquisition unit analyzes the measured waveform pattern and acquires a power consumption characteristic of the connected electrical device; and
A specifying step in which the specifying unit specifies device information associated with characteristic information indicating a power consumption characteristic that matches the acquired power consumption characteristic among the stored device information;
When the control means indicates that the supply of power is not permitted by the permission / rejection information stored in the storage means in association with the specified device information, the power for the connected electrical device A control step of supplying a control signal instructing to cut off the supply to the relay,
The power supply method characterized by the above-mentioned. A program for causing a computer including a storage unit, a plug male, a plug female, a relay, and a measurement unit to function as a power supply system,
The storage means supplies, for each of a plurality of electrical devices operating with power supplied from a commercial power source, device information indicating the electrical device, characteristic information indicating power consumption characteristics of the electrical device, and power to the electrical device. Associated with permission information indicating permission or disapproval of
The plug male receives the power supply from the commercial power source through an outlet,
The plug knife supplies the power to a connected electrical device,
The relay connects the plug male and the plug female in accordance with a control signal and supplies the electric power to the electrical equipment connected to the plug female, or the electrical equipment connected without connecting the plug male and the plug female. The power supply to
The measuring means measures a waveform pattern of power consumption of the connected electrical device when the power is supplied to the connected electrical device,
The program causes the computer to
An acquisition means for analyzing the measured waveform pattern and acquiring power consumption characteristics of the connected electrical device;
A specifying means for specifying device information associated with characteristic information indicating power consumption characteristics that match the acquired power consumption characteristics among the stored device information;
If the permission information stored in the storage means in association with the specified device information indicates that power supply is not permitted, the power supply to the connected electrical device is cut off. Functioning as control means for supplying a control signal to the relay to instruct
A program characterized by that.

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