JP2011247850A - Power management device, power supply device, and power management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power management device, a power supply device, and a power management system which detect the change of an electric apparatus connected to a connection port without adding a special configuration to the electric apparatus.SOLUTION: A management device 10 includes: a communication part 11 which is connected to a power supply tap 20 provided with a connection port 23 for supplying power to an electric apparatus and manages power consumption of the electric apparatus and receives measurement data including time series data and/or feature data including at least one of a current value and a phase difference value of power supplied to the connection port 23, from the power supply tap 20 together with identification data given to the connection port 23; a storage part 12 where connection management data including respective identification data of the connection port 23 and the electric apparatus and reference data for the electric apparatus are stored; and a detection part 13 which reads out the reference data from the storage part 12 and compares the reference data with the measurement to detect the change of the electric apparatus connected to the connection port 23.

Description

  The present invention relates to a power management device that manages power consumption of an electrical device, a power supply device that supplies power to the electrical device, and a power management system.

  With the recent popularization of electrical devices, many electrical devices are used in offices and homes, and the increase in power consumption is a problem. In particular, when electrical equipment is connected to a power supply wiring connection port (so-called outlet connection port) that supplies electric power, it is in a standby state even when the power switch is off, and it consumes standby power. There are many devices. Therefore, there is a demand for a power saving technique that suppresses unnecessary power consumption of electrical equipment on the power supply side such as a power supply wiring connection port.

  The power strip described in Patent Document 1 below performs power line communication with an electrical device connected to the connection port of the tap, receives setting information regarding power management of the electrical device from the electrical device, and based on the setting information, Power management is performed to turn on / off the power supply to the wiring connection port.

JP 2008-197755 A

  In the above-described power supply tap of Patent Document 1, in order to obtain setting information for performing power management of the electric device connected to the connection port, it is necessary to perform power line communication with the electric device, and the power line communication is supported. It is not possible to perform power management of electrical equipment that is not connected. In that case, if the change of the electrical device connected to the connection port cannot be detected, there is a possibility that incorrect power management is performed.

  The present invention has been made in view of such circumstances, and a power management apparatus and a power supply that can obtain change information of an electrical device connected to a connection port without adding a special configuration to the electrical device. An object is to provide a device and a power management system.

  The power management device according to the first aspect of the present invention is connectable via an electrical power supply device that can connect an electrical device and includes one or a plurality of connection ports that supply power to the electrical device, and A power management device for managing power consumption of an electrical device connected to the connection port of the power supply device, wherein at least one value of a current and a phase difference of power supplied to the electrical device connected to the connection port The measurement data for the electric device including the time-series data including the characteristic data of the electric device obtained from the time-series data, or both, and the identification given to the connection port to which the electric device is connected Along with data, receiving means for receiving from the power supply apparatus via the network, identification data of the connection port, and identification of the electrical equipment connected to the connection port. Storage management means including data, and storage means for storing reference data of the measurement data for the electrical equipment, and the reference data for the electrical equipment connected to the connection port represented by the identification data received by the reception means. Detection means for detecting a change in the electrical device connected to the connection port by comparing the reference data with the measurement data received together with the identification data from the storage means. It is characterized by that.

  According to the power management apparatus according to the first aspect, the receiving means includes time-series data including at least one value of a current and a phase difference of the power supplied to the electrical equipment connected to the connection port of the power supply apparatus, Alternatively, the measurement data of the electric device including the feature data of the electric device obtained from the time series data or both is received from the power supply device. Since the change of the electrical device connected to the connection port is detected by the measurement data, it is not necessary to add a special configuration to the electrical device for the detection.

  The power management apparatus according to the second aspect of the present invention is the power management apparatus according to the first aspect, in particular, when the change of the electrical equipment connected to the connection port is detected by the detection means, the storage means And an identification unit for identifying the changed electrical device based on a comparison between the reference data for the other electrical device stored in the data and the measurement data received by the reception unit.

  According to the power management apparatus of the second aspect, when a change in the electrical device connected to the connection port is detected, the changed electrical device is selected from other electrical devices for which reference data has already been registered. The device can be identified.

  In the power management apparatus according to the third aspect of the present invention, particularly in the power management apparatus according to the second aspect, when the changed electrical device can be identified, the identification data of the connection port is based on the result. It further comprises setting means for updating the identification data of the electrical device in the connection management data including.

  According to the power management apparatus according to the third aspect, when a change in the electrical device connected to the connection port is detected, if the changed electrical device can be identified, the connection is made to the connection port according to the result. Update the identification data of the electrical equipment. For this reason, even if another electrical device is connected to the connection port, it is possible to avoid performing power management according to the electrical device before the change.

  The power management device according to a fourth aspect of the present invention is the power management device according to the third aspect, in particular, the power supply device obtains measurement data of the electrical equipment connected to the connection port. And transmission means for transmitting the measurement data of the electrical equipment acquired by the acquisition means to the power management apparatus via the network, together with identification data given to the connection port to which the electrical equipment is connected, Is further provided.

  According to the power management device according to the fourth aspect, the power supply device transmits the measurement data to the power management device, so that the power consumption of the electrical device can be managed without adding a special configuration to the electrical device. Is possible.

  The power management device according to a fifth aspect of the present invention is the power management device according to the fourth aspect, in particular, the power supply device includes a plug connected to a power supply wiring connection port, and the plug and the connection port. And switching means for switching between connection and disconnection.

  According to the power management device of the fifth aspect, the switching means switches between connection and disconnection between the plug and the connection port, thereby not only notifying the power management device of the power consumption of the electrical equipment but also its consumption. Electric power can be reduced.

  The power management apparatus according to a sixth aspect of the present invention is the power management apparatus according to the fifth aspect, in particular, command means for transmitting a connection command or a disconnection command for the switching means to the power supply device via the network. Is further provided.

  According to the power management apparatus according to the sixth aspect, it is possible to reduce the power consumption of the electrical device by giving a command from the power management apparatus to the power supply apparatus.

  The power management apparatus according to a seventh aspect of the present invention is the power management apparatus according to the sixth aspect, in particular, the storage means further stores power management setting data relating to management of power consumption for the electrical equipment, The command means transmits the connection command or the disconnect command to the power supply device based on the power management setting data.

  According to the power management apparatus according to the seventh aspect, by giving a command to the power supply apparatus based on the power management setting data, it is possible to suppress the power consumption of the electrical equipment connected to the power supply apparatus.

  In the power management apparatus according to the eighth aspect of the present invention, particularly in the power management apparatus according to the seventh aspect, when the changed electrical device cannot be identified, attribute data including identification data of the electrical device is obtained. It further comprises registration means for registering in the storage means.

  According to the power management apparatus of the eighth aspect, when the changed electrical device cannot be identified, the user is prompted to register a new electrical device as a power management target or communicates with the electrical device. To obtain the attribute data.

  A power management apparatus according to a ninth aspect of the present invention is the power management apparatus according to the eighth aspect, in particular, when the setting means registers the attribute data of the electrical equipment, The identification data of the electrical device in the connection management data including the identification data of the connection port connected to is updated to the identification data of the registered attribute data.

  According to the power management device according to the ninth aspect, even if there is a change in the electrical device connected to the connection port and the changed electrical device cannot be identified, the newly acquired attribute data allows the The identification data of the electric device can be associated with the connection port.

  The power management apparatus according to the tenth aspect of the present invention is the power management apparatus according to the ninth aspect, in particular, wherein the registration means uses the measurement data for the electric device in which the attribute data is registered as a reference for the electric device. The data is further registered in the storage means as data.

  According to the power management apparatus according to the tenth aspect, even if there is a change in the electrical device connected to the connection port and the changed electrical device cannot be identified, the newly acquired measurement data can be used to Standard data for electrical equipment can be registered. Therefore, even if there is a further change in the electrical device connected to the connection port, the change can be detected.

  The power management apparatus according to the eleventh aspect of the present invention is the power management apparatus according to any one of the seventh to tenth aspects, particularly when the changed electrical device cannot be identified. The power management setting data is invalidated.

  According to the power management apparatus of the eleventh aspect, even when an unregistered electrical device is connected to the connection port, it is possible to avoid performing power management according to the electrical device before the change.

  A power supply device according to a twelfth aspect of the present invention is a power supply device that is connected to a power management device that manages power consumption of an electrical device via a network, and is capable of connecting the electrical device, Time series data including at least one value of current and phase difference of power supplied to the electrical device connected to the connection port and one or a plurality of connection ports that supply power to the electrical device, or the time The electrical device connects measurement data for the electrical device, including characteristic data of the electrical device obtained from series data, or both, and measurement data for the electrical device acquired by the acquisition unit. Transmission means for transmitting to the power management apparatus via the network together with identification data given to the connection port. There.

  According to the power supply device of the twelfth aspect, the measurement data for the electrical device connected to the connection port is transmitted to the power management device, so that the connection to the connection port is performed without adding a special configuration to the electrical device. It becomes possible for the power management apparatus to detect a change in the electrical device that has been performed.

  A power supply device according to a thirteenth aspect of the present invention is a power supply device that is connected to a power management device that manages power consumption of an electrical device via a network, and is capable of connecting the electrical device, Time series data including at least one value of current and phase difference of power supplied to the electrical device connected to the connection port and one or a plurality of connection ports that supply power to the electrical device, or the time Obtaining means for obtaining measurement data for the electric device, including characteristic data of the electric device obtained from series data, or both; and identification data given to the connection port to which the electric device is connected The connection management data including the identification data of the connection port, the identification data of the electrical device connected to the connection port, and the electrical device. A communication unit that performs communication for inquiring of the reference data to the electrical device registered in the connection port with respect to a database that stores reference data of the measurement data, and the connection port that is inquired using the communication unit Detecting means for detecting a change in the electrical equipment connected to the connection port by comparing the reference data for the electrical equipment registered in the information and the measurement data obtained by the obtaining means. It is a feature.

  According to the power supply device of the thirteenth aspect, a change in the electrical device connected to the connection port can be detected, and a special configuration is added to the electrical device by transmitting information on the change to the power management device. Without any change, the power management apparatus can notify the user of the change or perform power management according to the change.

  A power supply device according to a fourteenth aspect of the present invention is a power supply device that is connected to a power management device that manages power consumption of an electrical device via a network, and is capable of connecting the electrical device, Time series data including at least one value of current and phase difference of power supplied to the electrical device connected to the connection port and one or a plurality of connection ports that supply power to the electrical device, or the time Acquisition means for acquiring measurement data for the electric device including characteristic data of the electric device or both obtained from series data, identification data of the connection port, and identification of the electric device connected to the connection port Storage means for storing connection management data including data, and reference data of the measurement data for the electrical device, and the electrical device registered in the connection port And the reference data, by comparing the the measurement data obtained by the obtaining unit, is characterized by comprising detecting means for detecting a change in the electrical device connected to the connection port, the.

  According to the power supply device of the fourteenth aspect, a change in the electrical device connected to the connection port can be detected, and a special configuration is added to the electrical device by transmitting information on the change to the power management device. Without any change, the power management apparatus can notify the user of the change or perform power management according to the change.

  A power management system according to a fifteenth aspect of the present invention includes: a power supply device; and a power management device that is connected to the power supply device via a network and manages power consumption of an electrical device, and the power supply The apparatus is connectable to the electrical device, and supplies one or a plurality of connection ports for supplying power to the electrical device, and the current and phase difference of the power supplied to the electrical device connected to the connection port. Acquisition means for acquiring measurement data for the electric device, including time series data including at least one value, or characteristic data of the electric device obtained from the time series data, or both, and acquired by the acquisition device Measurement data for the electrical device is transmitted to the power management apparatus via the network together with identification data given to the connection port to which the electrical device is connected. The power management device transmits the identification data of the connection port transmitted by the transmission unit and the measurement data for the electrical device connected to the connection port. Storage means for storing receiving means for receiving from the apparatus, connection management data including identification data of the connection port, identification data of the electric device connected to the connection port, and reference data of the measurement data for the electric device The reference data for the electrical device registered in the connection port represented by the identification data received by the receiving means is read from the storage means, and the reference data and the measurement data received by the receiving means together with the identification data And detecting means for detecting a change in the electrical equipment connected to the connection port. To have.

  According to the power management system of the fifteenth aspect, the measurement data for the electrical device connected to the connection port of the power supply device is transmitted from the power supply device to the power management device, so that a special configuration is added to the electrical device. Without change, it is possible to detect a change in the electrical equipment connected to the connection port.

  According to the present invention, it is possible to provide a power management device, a power supply device, and a power management system that can obtain change information of an electrical device connected to a connection port without adding a special configuration to the electrical device. Is possible.

It is a block diagram which shows roughly the structure of the power management system which concerns on embodiment of this invention. It is a block diagram which shows the structure of a management apparatus schematically. It is a block diagram which shows the structure of a power strip schematically. It is the flowchart which showed the process sequence of the apparatus detection process which a power management system performs. It is an example of the connection port table regarding the electric equipment connected to the connection port. It is an example of the power management setting table which stores power management setting data. It is an example of the apparatus table regarding the electric equipment registered into the power management system. It is the figure which represented roughly the time series data regarding the electric current immediately after the power supply for every electric equipment was turned on. It is a setting example of the range in the case of discriminating an electrical device using current characteristic data. It is the scatter diagram which plotted about the current and phase difference which were sampled from the time series data which the acquisition part acquired. It is a block diagram which shows roughly the structure of the power management system which concerns on the 1st modification of this invention. It is a block diagram which shows roughly the structure of the power strip which concerns on the 2nd modification of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the element which attached | subjected the same code | symbol in different drawing shall show the same or corresponding element.

  The power management system 1 according to the embodiment of the present invention is a system that supplies power to an electrical device and manages the supplied power. FIG. 1 is a block diagram schematically showing a configuration of a power management system 1 according to an embodiment of the present invention. FIG. 1 illustrates a state in which the electrical device 30 is connected to the power tap 20B and the electrical device 31 is connected to the power tap 20C. The power management system 1 includes a management device 10 that is a power management device and a power strip 20 (reference numerals 20A to 20C in FIG. 1) that is a power supply device. The management device 10 is connected to the power strip 20 via a network 40. Has been.

  FIG. 2 is a block diagram schematically showing the configuration of the management apparatus 10. The management apparatus 10 includes a communication unit 11 as a receiving unit, a storage unit 12 as a storage unit, a detection unit 13 as a detection unit, a determination unit 14 as an identification unit, a setting unit 15 as a setting unit, and a registration unit. A registration unit 16 is included. Furthermore, the connection relationship of each component block of the management apparatus 10 will be described. The output of the communication unit 11 is input to the power tap 20 via the storage unit 12, the detection unit 13, and the network 40. The output of the storage unit 12 is input to the detection unit 13, the determination unit 14, and the setting unit 15. The output of the detection unit 13 is input to the storage unit 12 and the determination unit 14. The output of the determination unit 14 is input to the setting unit 15 and the registration unit 16. The output of the setting unit 15 is input to the communication unit 11 and the storage unit 12. The output of the registration unit 16 is input to the storage unit 12.

  FIG. 3 is a block diagram schematically showing the configuration of the power tap 20. FIG. 3 illustrates a state where the electric device 30B is connected to one connection port 23B and the electric device 30C is connected to the other connection port 23C in the power tap 20B. The electric device 30 is an electric device connected to the connection port 23 of the power tap 20B, including the electric device 30B and the electric device 30C. The power tap 20 includes a power distribution unit 21, a relay 22 that is a switching unit (reference numerals 22 </ b> A to 22 </ b> C in FIG. 3), and a connection port 23 that is a plug insertion port of the electrical device 30 (reference numerals 23 </ b> A to 23 </ b> C in FIG. 3). , An acquisition unit 24 that is an acquisition unit, a communication unit 25 that is a transmission unit, and a control unit 26. Furthermore, the connection relationship of each component block of the power tap 20 will be described. The output of the power distribution unit 21 is input to the relays 22A to 22C. The output of the relay 22A is input to the connection port 23A. The output of the relay 22B is input to the connection port 23B. The output of the relay 22C is input to the connection port 23C. Each output of the connection ports 23 </ b> A to 23 </ b> C is input to the acquisition unit 24. The output of the acquisition unit 24 is input to the communication unit 25. The communication unit 25 is connected to the management device 10 via the control unit 26 and the network 40. The output of the control unit 26 is input to each of the relays 22A to 22C.

  The power supply tap 20 of the power management system 1 has a plug connected to a power supply wiring connection port which is a plug insertion port such as an indoor power supply wiring, and the power S1 supplied from the plug is supplied via the relays 22A to 22C. Electric power is supplied to the electrical devices distributed to the connection ports 23A to 23C and connected to the connection ports 23A to 23C. And the management apparatus 10 communicates with each power strip 20 using the communication function by the communication part 11 etc., and the setting part 15 of the management apparatus 10 relays 22A-22C with respect to the control part 26 of each power strip 20. FIG. Set power management to control the opening and closing of the switch. In accordance with the power management setting, the management device 10 transmits a connection command or a disconnection command to the power tap 20 via the network 40, and the power tap 20 operates the relays 22A to 22C according to the command. By operating the relays 22A to 22C to open and close the switch of the power supply line that supplies power from the plug to the connection ports 23A to 23C, the power management system 1 allows the power of the electrical equipment connected to the connection ports 23A to 23C Management is performed. The power management may be power management in which the power source of the electrical device and another electrical device is switched on and off in conjunction with each other (in this way, following the power state of the other electrical device, The operation of switching the power supply state of the device is referred to as “interlocking” in the embodiment of the present invention). Moreover, the power management which always turns on a power supply with respect to the said electric equipment may be sufficient, and the power management which switches on and off of the power supply of the said electric equipment by timer control may be sufficient. Furthermore, the power management in the present invention is not limited to the power management exemplified above, and may be any power management that can be performed on the electric device in which the power tap 20 is connected to the connection port 23.

  FIG. 4 is a flowchart showing a processing procedure of power management setting processing performed by the power management system 1. For example, when the electrical device 30 is connected to the connection port 23B of the power strip 20B and power supply to the electrical device is started, first, in step SP100, the acquisition unit 24 of the power strip 20B is connected to the electrical port connected to the connection port 23B. The current and phase difference of the power supplied to the device 30B are measured, and the time series data, feature data obtained from the time series data, or measurement data including both time series data and feature data are acquired. Specifically, the acquisition unit 24 includes a measuring instrument that measures the current and phase difference of the power supplied from the connection port 23B. The acquisition unit 24 can measure current and phase difference for a predetermined time (for example, one minute) using the measuring instrument, and can acquire time-series data of current and phase difference.

  The acquisition of the time series data is not limited to the time when the power supply to the electric device is started, and may be performed at regular intervals, for example, every time measurement data is obtained. Alternatively, it may be performed at a predetermined timing. And you may perform when the power supply of the electric equipment itself connected to the connection port 23 is turned off.

  Furthermore, the acquisition unit 24 can acquire power-related feature data from the acquired time-series data. The feature data is obtained from time series data such as the maximum and minimum values of current and phase difference during a predetermined period in the time series data, or the average value and variance of current and phase difference in the time series data. It may be a statistical value or a corresponding classification when those numerical values are classified within a predetermined range, and it has power characteristics of the acquired time-series data and detects changes in the electrical equipment to which the power is supplied And what is necessary is just to be used for identification of an electric equipment.

  And the acquisition part 24 which acquired measurement data outputs the acquisition information S6 which provided the identification data corresponding to the connection port 23B to the measurement data acquired from the connection port 23B toward the communication unit 25. The identification data is unique information corresponding to each connection port 23, and is information for identifying which connection port 23 is the measurement data. The identification data of the connection port 23 only needs to be unique at least in the power strip 20B. By combining with the MAC (Media Access Control) address of the power strip 20B and other identification data, one connection port 23 in the power management system 1 is used. Can be shown. The communication unit 25 of the power tap 20B communicates with the communication unit 11 of the management apparatus 10 via the network 40, and transmits acquisition information using the communication signal S7. The communication unit 11 of the management apparatus 10 to which the acquisition information is input by the communication signal S7 outputs the acquisition information as the acquisition information S8 toward the storage unit 12, and outputs the acquisition information S9 as the acquisition information S9 toward the detection unit 13.

  Next, in step SP105, the management device 10 of the power management system 1 has changed the electrical device 30 connected to the connection port 23B from the electrical device registered in the connection port 23B based on the acquired measurement data. Detect whether or not. Registration data for the connection port 23 is stored in the storage unit 12. The storage unit 12 stores, as registration data, a connection port table for managing each connection port 23 including connection management data, a device table for managing electric devices, and a power management setting table including power management setting data for the electric devices. ing.

  FIG. 5 is an example of the connection port table. In the connection port table shown in FIG. 5, the tap ID given to each power tap 20 included in the power management system 1, the connection port ID indicating each connection port 23 included in each power tap 20, and the power management system 1 The device ID attached to the registered electric device and setting information indicating whether the power management setting performed for each connection port 23 is valid or invalid are included.

  FIG. 6 is an example of a power management setting table. The power management setting table shown in FIG. 6 includes a device ID assigned to each electric device registered in the power management system 1, an ID of reference data of each electric device, and data of power management setting. . Here, the power management setting data includes linkage source data and always-on setting data. The link source data represents the ID of the link source electrical device when the power management settings of a plurality of electrical devices are linked. In this example, the power management of an electrical device whose device ID is “β” (hereinafter referred to as an electrical device “β”; the same applies to electrical devices with other device IDs) is linked to the electrical device “α”. That is, if the electrical device “α” is turned on, the electrical device “β” is also turned on. If the electrical device “α” is turned off, the electrical device “β” is also turned off. The always-on setting data means that when the setting is “Yes”, it means that the relay of the connection port to which the electrical device is connected is always on, and when it is “No”, such control is not performed. Means. In this power management setting table, the power management setting for each electric device is organized by the identification data of the electric device. Unlike when managing power management settings based on connection port identification data, even if there is a change in the electrical equipment connected to the connection port, power management settings such as interlocking and always-on are still associated with the connection port. There is no remaining.

  FIG. 7 is an example of a device table. The device table stores attribute data of the electric device for each ID assigned to the electric device, and the attribute data is data necessary for the management apparatus 10 to communicate with the electric device, such as a MAC address, for example, Includes the type of electrical equipment and data of the manufacturer. The attribute data is not limited to this example, and may include data on the name of the electric device. A part of the attribute data can be acquired by the management apparatus 10 communicating with the electric device, and the remaining part can be acquired by, for example, asking the user for input.

  In FIG. 5, the tap IDs are schematically indicated as “A”, “B”, and “C”, respectively, and the connection port IDs are indicated as “1”, “2”, and “3”, respectively. In the present invention, the ID is not limited to these. For example, the tap ID may be a MAC address as described above, or may be information unique to a tap or a connection port. Here, the power strip whose tap ID is “B” in FIG. 5 is the power strip 20B, the connection port ID of the connection port 23A is “1”, the connection port ID of the connection port 23B is “2”, and the connection port. The description will be continued assuming that the connection port ID of 23C is “3”. FIG. 5 shows that the electrical device 30 is connected to the connection ports 23B and 23C among the connection ports 23 of the power tap 20B, for example.

  And in step SP105 with reference to FIG. 4, the detection part 13 is the information of the electric equipment connected to which connection port 23 from the identification data contained in the input acquisition information S9. Is determined by referring to the connection port table. In this example, the identification data included in the acquired information is to identify the tap ID and the connection port ID in the connection port table of FIG. 5, and by referring to the connection port table based on the identification data, The electric device registered in the connection port 23 represented by the identification data can be specified. Then, by referring to the power management setting table of FIG. 6 from the device ID of the electric device registered in the connection port 23 corresponding to the identification data included in the acquired information, the corresponding stored in the storage unit 12 It is possible to obtain the ID of the reference data regarding the electric equipment. By obtaining the ID of the reference data from the device table, the detection unit 13 can read the reference data body from the storage unit 12 as the reference data information S10.

  Here, since the acquired information when the electrical device is connected to the connection port 23B of the power tap 20B is input, the identification data included in the acquired information includes the tap ID “B” and the connection port ID “2”. (Hereinafter, in this embodiment, when identifying the identification data of the tap ID “B” and the connection port ID “2”, it is expressed as “B2”, and other tap IDs and connection ports are represented. The same applies to the combination with ID). Therefore, from the connection port table of FIG. 5, the electrical device “α” is registered in the connection port 23B of the power tap 20B. Furthermore, by referring to the power management setting table of FIG. 6, the reference data of the electric device “α” can be obtained.

  Then, the detection unit 13 compares the measurement data of the electrical device 30B included in the acquired information S9 input from the communication unit 11 with the reference data of the electrical device “α” input from the storage unit 12, and connects It is determined whether or not the electrical device connected to the port 23B is the registered electrical device “α”, and it is detected whether or not the electrical device connected to the connection port 23B has been changed. When the measurement data includes time-series data, the time-series data may be used as it is for this comparison, or the power management apparatus may obtain feature data from the time-series data. Details of the detection method relating to the change of the electric device will be described later.

  When the electrical device 30B connected to the connection port 23B has not been changed from the electrical device registered in the connection port table (that is, when the determination result in step SP105 is “NO”), the detection unit 13 It is detected that the electrical device connected to the connection port 23B is the registered electrical device “α”, and information indicating that the electrical device connected to the connection port 23B has not been changed and the connection port 23B are displayed. The change information S12 including the identification data to be expressed is output to the storage unit 12. And the power management system 1 performs operation | movement of step SP140 mentioned later. On the other hand, when the electrical device 30B connected to the connection port 23B is changed from the electrical device registered in the connection port table (that is, when the determination result in step SP105 is “YES”), the detection unit 13 Detects that the electrical device 30B connected to the connection port 23B is not the registered electrical device “α”, and includes information that the electrical device connected to the connection port 23B has changed. The change information S12 is output toward the storage unit 12, and information indicating that the electrical device connected to the connection port 23B has been changed, identification data representing the connection port 23B, and the electrical device connected to the connection port 23B The change information S11 including the measurement data acquired from the power supplied to is output to the determination unit 14. And the power management system 1 performs operation | movement of step SP110 mentioned later.

  Next, when the determination in step SP105 is “YES” and the electrical device 30B connected to the connection port 23B is changed from the electrical device registered in the connection port table, the detection unit 13 connects to the connection port 23B. The storage unit 12 to which the change information S12 including the change in the electrical device connected to the storage device 12 is input to the determination unit 14 as the reference information S13 of the reference data information of other registered electrical devices. Output. Based on the measurement data included in the change information S11 input from the detection unit 13 and the reference data included in the reference information S13 input from the storage unit 12, the determination unit 14 is connected to the connection port 23B. It is determined whether 30B is another electrical device whose reference data is registered in the device table of the storage unit 12. Details of the determination method of the electric device will be described later.

  When the electrical device 30B connected to the connection port 23B is not any of the electrical devices for which the reference data is registered (that is, when the determination result in step SP110 is “NO”), the determination unit 14 determines whether The determination information S14 and the determination information S15 including the identification data corresponding to the connection port 23 to which the performed electrical device is connected and information indicating that the electrical device is a new electrical device are sent to the registration unit 16 and the setting unit 15. Output each. And the power management system 1 performs operation | movement of step SP115 mentioned later. On the other hand, when the electrical device 30B connected to the connection port 23B is one of the electrical devices for which the reference data is registered (that is, when the determination result in step SP110 is “YES”), the determination unit 14 The determination information S14 and the determination information S15 including the identification data corresponding to the connection port 23 to which the determined electric device is connected and the device ID indicating which electric device is registered in the device table. Output to the registration unit 16 and the setting unit 15 respectively. And the power management system 1 performs operation | movement of below-mentioned step SP135.

  When the determination result in step SP110 is “NO” and the electrical device 30B connected to the connection port 23B is not any of the electrical devices for which the reference data is registered, in step SP115, the registration unit 16 inputs On the basis of the determination information S14 including the identification data and the information indicating that the device is a new electric device, the registration information S16 in which the electric device connected to the connection port 23B is a new electric device is output to the storage unit 12. sign up. For example, when the connection port table is in the state shown in FIG. 5 and the power management setting table is in the state shown in FIG. 6, when the operation of step SP110 is performed, the registration unit 16 displays the device table as shown in FIG. A new electric device (for example, device ID “ε”) representing the electric device 30B is newly registered.

  Next, in step SP120, the registration unit 16 registers the measurement data included in the acquired information input from the communication unit 11 as reference data for the electrical device with the device ID “ε” newly registered in the device table. . Furthermore, the registration unit 16 changes the registration of the electrical device to the identification data “B2” corresponding to the connection port 23B of the connection port table to the device ID “ε” based on the identification data included in the determination information S14.

  Next, when a new registration is not made by the registration unit 16 in step SP130, the setting unit 15 invalidates the power management setting of the electrical device for the identification data “B2” corresponding to the connection port 23B of the connection port table. The setting signal S18 to be output is output to the storage unit 12. In this case, the management apparatus 10 does not perform power management for the electrical device “α” registered in the connection port 23B regardless of the setting of the power management setting table. Further, when there is a user command, the power management may not be performed. As a result, even if a change in the electrical device connected to the connection port 23B is detected, even if the changed electrical device is not determined, power management for the electrical device before the change is not performed carelessly. Can do.

  If the determination result in step SP110 is “YES” and the electrical device 30 connected to the connection port 23B is one of the electrical devices for which reference data is registered, in step SP135, the setting unit 15 Outputs the update information S18 including identification data representing the connection port 23B and the device ID of the electric device determined to be connected to the connection port 23B toward the storage unit 12. And the memory | storage part 12 updates apparatus ID of the electric equipment with respect to the connection port 23B based on the input identification data and apparatus ID. For example, when it is determined that the electrical device 30 connected to the connection port 23B is the electrical device having the device ID “δ” and determination information S15 based on the determination is input to the setting unit 15, the setting unit 15 Based on the identification data included in the determination information S15, the registration of the electrical device currently connected to the identification data “B2” corresponding to the connection port 23B of the connection port table is changed to the device ID “δ”.

  Next, in step SP140, the setting unit 15 updates the reference data of the electrical equipment connected to the connection port 23B using the measurement data acquired by the acquisition unit 24 and the identification data corresponding to the connection port 23B. . Specifically, the setting unit 15 specifies the device ID of the electrical device newly connected to the connection port 23B represented by the identification data input with reference to the connection port table. Then, the setting unit 15 may register the measurement data acquired in step SP100 in addition to the reference data of the device ID already registered in the device table, or may acquire the reference data already registered. Based on the measurement data, the data processing such as obtaining the average value of the measurement data acquired so far may be performed, and the new data obtained by the data processing may be updated as reference data (the average value may be When performing data processing such as obtaining, the setting unit 15 may store information used for data processing such as the number of times measurement data has been acquired so far and the acquired time. When the reference data is updated, the power management system 1 ends the power management setting process.

  As described above, the power management system 1 performs the power management setting process. This power management setting process is performed not only when the electric device 30 described as an example is connected to the connection port 23B but also when the electric device is connected to any of the connection ports 23 of the power taps 20. Done. Therefore, even if the electrical device connected to the connection port 23 of the power management system 1 is changed and another electrical device is connected, if the electrical device is registered in the power management system 1, the registered power Management settings can be applied automatically. When the electrical device connected to the connection port 23 is an electrical device that is not registered in the power management system 1, it is newly registered or the power management setting performed for the electrical device is invalidated. Thus, it is possible to prevent erroneous power management.

  The registration of the electric device performed by the registration unit 16 or the setting of the power management performed by the setting unit 15 may be performed manually by the user or by reading information from the memory card. Each registration and setting is performed by each information input by S22-S24.

  Next, the detection of the change of the electric device performed by the power management system 1 and the determination as to whether or not it is a registered electric device will be described. Whether the change of the electric device is detected and whether or not the electric device is registered is determined whether the time series data of the current and phase difference of the electric power supplied to the electric device connected to the connection port 23 exceed a predetermined threshold value. It may be done depending on whether or not. FIG. 8 is a diagram schematically showing time-series data regarding the current immediately after the power supply for each electrical device is turned on. In FIG. 8, the time series data of the current of the electric device X is time series data L1, and the time series data of the current of the electric device Y is time series data L2. The time T1 is a time when the power of the electric device X and the electric device Y is turned on.

  The current of electric power supplied to electrical equipment is time-series data of similar currents when the same electrical equipment is used in the same way (for example, immediately after the power is turned on) or in the same operation mode. Can be obtained. Therefore, since the characteristics of each electric device appear in the time series data immediately after the power is turned on, the electric device can be determined using this characteristic. The determination of the electrical device may be performed by setting a threshold value for the current value of the time-series data. In FIG. 8, the maximum current value in the time series data L1 exceeds the threshold A, but the maximum current value in the time series data L2 does not exceed the threshold A. Therefore, the electric device X and the electric device Y can be discriminated by comparing the threshold A with the maximum value of the time series data. In the case of using discrimination based on this time series data, the storage unit 12 stores reference data including time series data for each electrical device. If the threshold value is appropriately set using the time series data for each electrical device (for example, setting the threshold value such that the maximum value of the time series data L1> the threshold value> the maximum value of the time series data L2), the data is compared. It is possible to determine whether or not the electrical devices to be operated are the same (or the same type or the same classification). Therefore, it is connected to the connection port 23 by comparing the reference data of the electric device registered in the connection port table with the measurement data acquired by the acquisition unit 24 as being an electric device connected to the connection port 23. It is possible to detect whether or not an electrical device has been changed. Moreover, it is possible to determine whether or not it is another registered electric device by comparing the reference data of the other registered electric device with the measurement data acquired by the acquiring unit 24.

  In addition, the detection of the change of the electric device performed by the power management system 1 and the determination as to whether or not the electric device is a registered electric device are performed based on whether the electric current supplied to the electric device and the characteristic data of the phase difference fall within a predetermined range. It may be done depending on whether or not. FIG. 9 is a setting example of a range in the case where the electrical device is determined using the current feature data. When the electric device is in a steady operation state (a state in which the operation of the electric device is stable and in FIG. 9 is a state after time T2), the current supplied to the electric device is stable, and the average value of the currents Such characteristic data is a characteristic value for each electric device. Therefore, by sampling from time-series data and performing statistical processing or the like to obtain feature data such as an average value, it is possible to determine the electrical device. In FIG. 9, a current value range C set with a predetermined width from past time-series data and feature data of the electric device X stored in the storage unit 12, and past time-series data and features of the electric device Y. A current value range D set with a predetermined width from the data is set (this predetermined width is characteristic data in a steady operation state obtained by statistically processing past time-series data and characteristic data. May be set based on the standard deviation of the time series, etc. Further, whether the acquired time series data is in a steady operation state is whether the time change amount of the value of the time series data is less than a predetermined change amount. It may be determined based on the acquired time series data, such as whether or not). If the average value of the current time-series data acquired by the acquisition unit 24 falls within the range C, it can be determined that the device is the electric device X, and if the average value falls within the range D, the current device Y can be determined. Therefore, it is determined whether or not the electrical device connected to the connection port 23 has been changed by determining whether or not the electrical device connected to the connection port 23 is an electrical device registered in the connection port table. It is possible to detect. Further, by determining whether or not the electrical device connected to the connection port 23 is one of other registered electrical devices, it is possible to determine whether or not it is another registered electrical device. Is possible.

  In addition, in the case of electric devices that have similar power consumption during operation even if they are different electric devices, it may be difficult to distinguish the electric device using only time-series data and feature data during operation. When such an electrical device is in a standby state even when the electrical device itself is turned off in a state where power is supplied, the acquisition unit 24 supplies the standby state electrical device. The time series data and feature data of the current and phase difference of the electric power to be obtained may be acquired, and the time series data and feature data in the standby state may be added to determine the electrical device. The power consumed by the electrical devices in the standby state is also a characteristic value for each electrical device, and even when the electrical devices show similar power consumption during operation, the power consumption in the standby state shows different power between the electrical devices. Sometimes. In FIG. 8, the electric device X and the electric device Y are in a standby state before the time T1. The current value of the time series data L1 of the electric device X exceeds the threshold value B in the standby state, but the current value of the time series data L2 of the electric device Y is less than the threshold value B in the standby state. In this way, it is possible to determine the electrical device even using the time-series data and feature data in the standby state. Therefore, in an electrical device with a standby state, the electrical device can be more appropriately identified based on the time-series data and feature data in the standby state in addition to the time-series data and feature data at the time of operation of the electrical device. Is possible. The detection of whether or not the electrical device is in the standby state may be detected by the acquisition unit 24 monitoring the power supplied to the electrical device, or by separately communicating with the electrical device. May be.

  Moreover, although the example which discriminate | determines an electric equipment using the time series data and the characteristic data of the electric current supplied to the electric equipment connected to the connection port 23 was demonstrated, in the electric equipment connected to the connection port 23, The same determination may be made for time-series data and feature data of the phase difference of the supplied power. Furthermore, by using both the current and the phase difference, it is possible to more appropriately determine the electric device. FIG. 10 is a scatter diagram in which the current and the phase difference sampled from the time series data acquired by the acquisition unit 24 are plotted. The sampled current and phase difference plot data have similar values depending on the electrical equipment and its operating state, and therefore are divided into several groups plotted near the scatter diagram. In FIG. 10, the data of the electric device X in operation is plotted in the group G1. The data of the operating electric device Y is plotted in the group G2. The data of the electric device X in the standby state is plotted in the group G3. The data of the electric device Y in the standby state is plotted in the group G4.

  Here, when the current values of the data plotted in the group G1 and the group G2 are compared, they are almost the same value, and even if feature data such as an average value of current obtained from these current data is used, It is difficult to distinguish between the electric device X and the electric device Y. However, when the phase difference between the group G1 and the group G2 is added and compared, the group G1 and the group G2 can be divided into different groups with the boundary B1 as the boundary. Further, the plot data of the electric device X and the electric device Y in the standby state can be distinguished into the group G3 and the group G4. Therefore, based on the time series data and feature data of both the current and phase difference of the electric power supplied to the electric device connected to the connection port 23, it is possible to more appropriately determine the electric device. The grouping for each plot data as shown in FIG. 10 may be performed by a statistical method such as SVM (Support Vector Machine) based on the reference data stored in the storage unit 12. As described above, in the determination of the electrical device in the present invention, both the current and the phase difference of the power supplied to the electrical device connected to the connection port 23 may be used, or either the current or the phase difference is used. May be used alone. In order to discriminate the electric device, both time series data and feature data of current and phase difference may be used, or only one of time series data and feature data may be used. And the acquisition part 24 may acquire only the information used for discrimination | determination of an electric equipment, and the memory | storage part 12 may memorize | store only the information used for discrimination | determination of an electric equipment.

  As described above, the power management system 1 acquires the measurement data of the power supplied to the electrical equipment connected to the connection port 23 of each power strip 20 and is connected to the connection port 23 at each connection port 23. Whether or not the electrical device connected to each connection port 23 has been changed from the registered electrical device based on the reference data of the registered electrical device and the measurement data acquired by the acquisition unit 24. Can be detected. Further, when the electric device has been changed, the electric device is connected to the connection port 23 based on the reference data of the electric device registered so far stored in the storage unit 12 and the measurement data acquired by the acquisition unit 24. It is possible to determine whether the electric device is one of the registered electric devices.

  Furthermore, when an electrical device that is not registered in the device table is connected to the connection port 23, the registration unit 16 adds the electrical device to the device table. When a new electrical device is registered, the setting unit 15 uses measurement data acquired from the power supplied to the connection port 23 to which the newly registered electrical device is connected as reference data for the electrical device. Remember. Therefore, when a user connects a new electric device to the power strip 20 and performs power management, it is not necessary to separately register the electric device or reference data of the electric device. Convenience can be improved.

  In addition, since the power management setting data is stored for each electrical device, even if a change in the electrical device connected to the connection port is detected, it can be changed simply by updating the identification data of the electrical device in the connection port table. The power management setting for the previous electrical device is not applied to the connection port.

  In the present embodiment, the power management system in the case where the number of power strips 20 is three is shown. However, in the present invention, the number of power strips 20 is not limited to three. Since the discrimination is performed by different identification data, the effect of the present invention can be obtained regardless of the number of power strips.

  The communication used for the network 40 may be any communication that allows the management apparatus 10 and the power supply apparatus to transmit and receive information using a communication function, such as power line communication, wireless communication, and wired communication. When the management apparatus 10 and the power supply apparatus have communication functions such as power line communication, wireless communication, and wired communication, and also communicate with the electrical device 30 connected to the connection port of the power supply apparatus, the communication The information on the electrical device 30 obtained by the above may be used for discrimination of the electrical device. In this case, since the information on the power supplied to the electrical device 30 acquired by the acquisition unit 24 and the information obtained by performing communication with the electrical device 30 using the communication function are used, the accuracy of determination of the electrical device is used. Will improve.

<First Modification>
The power management system 2 according to the first modification of the present invention is a system that supplies power to an electrical device and manages the power consumption of the electrical device. FIG. 11 is a block diagram schematically showing the configuration of the power management system 2 according to the first modification of the present invention (however, in FIG. 11, the electrical device 30B is connected to the connection port 23B, and the connection The state in which the electrical device 30C is connected to the port 23C is illustrated, and the electrical device 30 is an electrical device connected to the connection port 23 including the electrical device 30B and the electrical device 30C). The power management system 2 includes a power strip 60 that is a power supply device, a network 41, and a database 50. Further, the power tap 60 includes a detection unit 13 as a detection unit, a determination unit 14 as an identification unit, a setting unit 15 as a setting unit, a registration unit 16 as a registration unit, a power distribution unit 21, and a relay 22 as a switching unit. (Reference numerals 22A to 22C in FIG. 11), connection port 23 that is a power supply wiring connection port (reference numerals 23A to 23C in FIG. 11), an acquisition unit 24 that is an acquisition unit, a communication unit 25 that is a communication unit, and a control unit 26.

  Next, the connection relationship of each component block of the power management system 2 will be described. The output of the power distribution unit 21 is input to the relays 22A to 22C. The output of the relay 22A is input to the connection port 23A. The output of the relay 22B is input to the connection port 23B. The output of the relay 22C is input to the connection port 23C. Each output of the connection ports 23 </ b> A to 23 </ b> C is input to the acquisition unit 24. The output of the acquisition unit 24 is input to the communication unit 25 and the detection unit 13. The output of the communication unit 25 is input to the database 50 via the detection unit 13, the determination unit 14, the setting unit 15, and the network 41. The output of the detection unit 13 is input to the communication unit 25 and the determination unit 14. The output of the determination unit 14 is input to the setting unit 15 and the registration unit 16. The output of the setting unit 15 is input to the communication unit 25 and the control unit 26. The output of the registration unit 16 is input to the communication unit 25. The output of the control unit 26 is input to each of the relays 22A to 22C. The output of the database 50 is input to the communication unit 25 via the network 41.

  The power supply tap 60 of the power management system 2 has a plug connected to a power supply wiring connection port that is a plug insertion port, and the power S1 supplied from the plug is connected to the connection ports 23A to 23C via the relays 22A to 22C. Electric power is supplied to the electrical devices that are distributed to each and connected to the connection ports 23A to 23C. Then, the setting unit 15 sets power management for controlling the switch opening / closing of the relays 22 </ b> A to 22 </ b> C to the control unit 26. According to this power management setting, the relays 22A to 22C open and close the power supply line switches that supply power to the connection ports 23A to 23C, respectively, so that the power management system 2 is connected to the connection ports 23A to 23C. Power management.

  The power management system 2 performs power management setting processing that is the processing procedure of the flowchart shown in FIG. The detection of the change of the electric device connected to the connection port 23 and the determination as to whether or not it is a registered electric device performed in the power management setting process are the same as the method described in the embodiment of the present invention. Is. However, in step SP100, the acquisition unit 24 acquires measurement data of the current and phase difference of the power supplied to the electrical device 30 connected to the connection port 23, and the identification data unique to each of the measurement data and the connection port 23 The acquisition information S6 and the acquisition information S25 including are output to the detection unit 13 and the communication unit 25. Then, the communication unit 25 outputs the acquired information toward the database 50 via the network 41. In step SP105, the database 50 outputs the reference data of the electrical equipment registered in the connection port 23 represented by the identification data included in the input acquisition information to the communication unit 25. The communication unit 25 outputs the reference data to the detection unit 13 as reference data information S27. Then, the detection unit 13 compares the reference data information S29 with the measurement data of the electric device 30 included in the acquisition information S6 input from the acquisition unit 24, and the electric device connected to the connection port 23 is registered. By determining whether or not the electrical device is connected, it is detected whether or not the electrical device connected to the connection port 23 has been changed.

  In step SP110, the communication unit 25 inquires about the data of other electrical devices stored in the database 50 via the network 41. Then, the database 50 extracts the reference data of the other electrical devices registered in the power management system 2, and sends the extracted reference data together with the identification data of the electrical devices to the determination unit 14 as the reference data information S30. Output. The determination unit 14 registers the electrical device connected to the connection port 23 based on the reference data and the measurement data of the power supplied to the electrical device connected to the connection port 23 input from the detection unit 13. Judgment is made as to whether or not the electrical device is used. Then, the determination unit 14 outputs information including the determination result to the setting unit 15 and the registration unit 16 as determination information S14 and determination information S15.

  In step SP115, the registration unit 16 converts the electrical device connected to the connection port 23 to a new electrical device based on the identification data included in the input determination information S14 and information indicating that the electrical device is a new electrical device. The registration information S31 is output to the communication unit 25. The communication unit 25 outputs the registration information to the database 50 via the network 41, and the database 50 registers the electric device based on the input registration information. In step SP120, the communication unit 25 inputs the acquisition information of the acquisition information S25 input from the acquisition unit 24 to the database 50 via the network 41. The database 50 records the measurement data included in the input acquisition information as reference data for the electrical equipment connected to the connection port represented by the identification data included in the acquisition information. In step SP130, the setting unit 15 is included in the determination information S15 based on the determination result that the electric device connected to the connection port 23 based on the input determination information S15 is an unregistered electric device. The power management setting that is set for the electrical device 30 connected to the connection port 23 indicated by the identification data is invalidated.

  In step SP135, the setting unit 15 outputs update information S32 including identification data representing the connection port 23 for registration and the device ID of the electric device for registration to the communication unit 25. The communication unit 25 outputs the update information to the database 50 via the network 41, and the database 50 is registered in the connection port 23 represented by the identification data in the connection port table based on the identification data included in the update information. The device ID of the current electrical device is changed to the device ID included in the update information. In step SP140, the database 50 updates the reference data stored in the device table based on the acquisition information S25 input from the acquisition unit 24.

  If the power management system 2 according to the first modification is used, the same effect as that of the power management system 1 shown in the embodiment of the present invention can be obtained without using a management device that manages and controls the power strip 60. Is possible. However, the change detection of the electric device performed by the power strip 60 and the identification result of the changed electric device are transmitted to the power management device so that the power management device performs power management based on the power management setting. Also good. 11 illustrates the case where the power management system 2 includes one power strip 60. However, in the first modification of the present invention, the number of power strips 60 is not limited to one, but via the network 41. A plurality of power strips 60 can be provided. The plurality of power strips 60 share the database 50 and use the common electrical device reference data to detect the change of the electrical device connected to the connection port 23 of the power strip 60 and to register other information. It is possible to determine whether or not the electrical device is an electrical device.

  Note that the communication used for the network 41 may be any communication that allows the database 50 and the power strip 60 to transmit and receive information using a communication function, such as power line communication, wireless communication, and wired communication.

<Second Modification>
A power strip 70 according to a second modification of the present invention is a power supply device that supplies power to an electrical device and manages the power consumption of the electrical device. FIG. 12 is a block diagram schematically showing the configuration of a power strip 70 according to the second modification of the present invention. However, FIG. 12 illustrates a state in which the electrical device 30B is connected to the connection port 23B, and the electrical device 30C is connected to the connection port 23C. The electric device 30 includes an electric device connected to the connection port 23, including the electric device 30B and the electric device 30C. The power tap 70 includes a storage unit 12 as a storage unit, a detection unit 13 as a detection unit, a determination unit 14 as an identification unit, a setting unit 15 as a setting unit, a registration unit 16 as a registration unit, a power distribution unit 21, The relay 22 (reference numerals 22A to 22C in FIG. 12) as a switching means, the connection port 23 (reference numerals 23A to 23C in FIG. 12) as a power supply wiring connection port, the acquisition section 24 and the control section 26 as acquisition means. Prepare.

  Next, the connection relationship of each component block of the power strip 70 will be described. The output of the power distribution unit 21 is input to the relays 22A to 22C. The output of the relay 22A is input to the connection port 23A. The output of the relay 22B is input to the connection port 23B. The output of the relay 22C is input to the connection port 23C. Each output of the connection ports 23 </ b> A to 23 </ b> C is input to the acquisition unit 24. The output of the acquisition unit 24 is input to the storage unit 12 and the detection unit 13. The output of the storage unit 12 is input to the detection unit 13, the determination unit 14, and the setting unit 15. The output of the detection unit 13 is input to the storage unit 12 and the determination unit 14. The output of the determination unit 14 is input to the setting unit 15 and the registration unit 16. The output of the setting unit 15 is input to the storage unit 12 and the control unit 26. The output of the registration unit 16 is input to the storage unit 12. The output of the control unit 26 is input to each of the relays 22A to 22C.

  The power tap 70 has a plug connected to a power supply wiring connection port which is a plug insertion port such as an indoor power supply wiring, and the power S1 supplied from the plug is connected to the connection ports 23A to 23C via the relays 22A to 22C. Electric power is supplied to the electrical devices that are distributed to each and connected to the connection ports 23A to 23C. Then, the setting unit 15 sets power management for controlling the switch opening / closing of the relays 22 </ b> A to 22 </ b> C to the control unit 26. According to this power management setting, the relays 22A to 22C open and close the power supply line switches that supply power to the connection ports 23A to 23C, respectively, so that the power tap 70 is connected to the connection ports 23A to 23C. Power management is performed.

  The power tap 70 performs power management setting processing that is the processing procedure of the flowchart shown in FIG. The detection of the change of the electric device connected to the connection port 23 and the determination as to whether or not it is a registered electric device performed in the power management setting process are the same as the method described in the embodiment of the present invention. Is. However, in step SP100, the acquisition unit 24 acquires measurement data of current and phase difference of power supplied to the electrical device 30 connected to the connection port 23, and the measurement data and identification data unique to each connection port 23 The acquisition information S6 and the acquisition information S35 including these are output toward the detection unit 13 and the storage unit 12. In step SP105, the storage unit 12 outputs the reference data of the electrical device registered in the connection port 23 represented by the identification data included in the input acquisition information S35 toward the detection unit 13 as reference data information S10. . Then, the detection unit 13 compares the reference data information S10 input from the storage unit 12 with the measurement data of the electric device 30 included in the acquisition information S6 input from the acquisition unit 24, and is connected to the connection port 23. It is determined whether or not the electrical device connected to the connection port 23 has been changed by determining whether or not the electrical device thus registered is an electrical device registered in the connection port.

  In step SP110, the storage unit 12 outputs the reference data of other electrical devices stored in the device table to the determination unit 14 as reference data information S13. The determination unit 14 registers the electrical device connected to the connection port 23 based on the reference data and the measurement data of the power supplied to the electrical device connected to the connection port 23 input from the detection unit 13. Judgment is made as to whether or not it is another electric device. Then, the determination unit 14 outputs information including the determination result to the setting unit 15 and the registration unit 16 as determination information S14 and determination information S15.

  In step SP115, the registration unit 16 converts the electrical device connected to the connection port 23 to a new electrical device based on the identification data included in the input determination information S14 and information indicating that the electrical device is a new electrical device. Is output to the storage unit 12. And the memory | storage part 12 registers the said electric equipment in a connection port table based on the input registration information S16. In step SP120, the registration unit 16 stores the measurement data acquired by the acquisition unit 24 as reference data for the electrical equipment connected to the connection port 23 represented by the identification data included in the acquisition information. In step SP130, the setting unit 15 is included in the determination information S15 based on the determination result that the electric device connected to the connection port 23 based on the input determination information S15 is an unregistered electric device. The power management setting that is set for the electrical device 30 connected to the connection port 23 indicated by the identification data is invalidated.

  In step SP135, the setting unit 15 outputs the update information S18 including the identification data representing the connection port 23 and the device ID of the electric device that performs update registration to the storage unit 12. Based on the identification data included in the update information, the storage unit 12 uses the device ID of the electrical device registered in the connection port 23 represented by the identification data in the connection port table as the device ID included in the update information. Change to In step SP140, the setting unit 15 updates the reference data of the electrical equipment connected to the connection port 23B based on the acquisition information acquired by the acquisition unit 24.

  If the power strip 70 according to the second modification is used, the reference data of the electric device registered in the storage unit 12 and the measurement data acquired by the acquisition unit 24 are compared, so that the connection port 23 of the power strip 60 is connected. It is possible to detect a change in the connected electrical device and determine whether it is a registered electrical device. Also in the second modification, the change detection of the electric device performed by the power strip 70 and the identification result of the changed electric device are transmitted to the power management device, and the power management device performs power consumption based on the power management setting. Management may be performed.

  In the embodiment of the present invention and the modification of the present invention, the power tap 20, the power tap 60, and the power tap 70 have three connection ports 23. However, in the present invention, the power tap The number of connection ports 23 included in is not limited to three. There may be one connection port of the power strip. Furthermore, the example of the power supply device is not limited to the power tap, and may be, for example, a wall outlet unit. In addition, switching on / off of the relay in the power tap is not limited to the case where it is performed based on the power management setting data, but may be performed according to an instruction input from the user.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

DESCRIPTION OF SYMBOLS 1, 2 Power management system 10 Management apparatus 20, 60, 70 Power supply tap 11, 25 Communication part 12 Storage part 13 Detection part 14 Determination part 15 Setting part 16 Registration part 21 Power distribution part 22A-22C Relay 23A-23C Connection port 24 Acquisition unit 30, 31 Electrical equipment 40, 41 Network 50 Database

Claims (15)

An electric device is connectable via a network to a power supply device having one or a plurality of connection ports for supplying electric power to the electric device, and connected to the connection port of the power supply device. A power management device for managing power consumption,
Includes time series data including at least one value of current and phase difference of electric power supplied to the electric equipment connected to the connection port, or characteristic data of the electric equipment obtained from the time series data, or both Receiving means for receiving the measurement data for the electrical device from the power supply device via the network together with the identification data given to the connection port to which the electrical device is connected;
Storage means for storing identification data of the connection port, connection management data including identification data of an electrical device connected to the connection port, and reference data of the measurement data for the electrical device;
The reference data for the electrical device connected to the connection port represented by the identification data received by the receiving unit is read from the storage unit, and the reference data and the measurement data received by the receiving unit together with the identification data are obtained. Detecting means for detecting a change of the electrical device connected to the connection port by comparing; and
A power management apparatus comprising:   When the change of the electrical equipment connected to the connection port is detected by the detection means, the reference data for the other electrical equipment stored in the storage means is compared with the measurement data received by the reception means. The power management apparatus according to claim 1, further comprising: an identification unit that performs identification of the electric device after the change.   The apparatus further comprises setting means for updating the identification data of the electric device in the connection management data including the identification data of the connection port based on the result when the changed electric device can be identified. The power management apparatus described. The power supply device
An acquisition means for acquiring measurement data of the electrical device connected to the connection port;
Transmitting means for transmitting the measurement data of the electric device acquired by the acquiring means to the power management apparatus via the network together with identification data given to the connection port to which the electric device is connected;
The power management apparatus according to claim 3, further comprising: The power supply device
A plug connected to the power supply wiring connection port;
Switching means for switching between connection and disconnection between the plug and the connection port;
The power management apparatus according to claim 4, further comprising:   The power management apparatus according to claim 5, further comprising a command unit that transmits a connection command or a disconnect command to the switching unit to the power supply device via the network. The storage means further stores power management setting data relating to management of power consumption for the electrical device,
The power management device according to claim 6, wherein the command unit transmits the connection command or the disconnection command to the power supply device based on the power management setting data.   The power management apparatus according to claim 7, further comprising: a registration unit that registers, in the storage unit, attribute data including identification data of the electrical device when the changed electrical device cannot be identified.   When the registration unit registers the attribute data of the electrical device, the setting unit registers the identification data of the electrical device in the connection management data including identification data of the connection port to which the electrical device is connected. The power management apparatus according to claim 8, wherein the identification data is updated to identification data of the attribute data.   The power management apparatus according to claim 9, wherein the registration unit further registers, in the storage unit, measurement data for the electrical device that has registered the attribute data as reference data for the electrical device.   The power management apparatus according to any one of claims 7 to 10, wherein if the changed electrical device cannot be identified, the power management setting data for the connection port is invalidated. A power supply device connected via a network to a power management device that manages power consumption of the electrical equipment,
One or a plurality of connection ports that can be connected to the electric device and supply electric power to the electric device;
Time series data including at least one value of current and phase difference of power supplied to the electrical equipment connected to the connection port, or characteristic data of the electrical equipment obtained from the time series data, or both Including acquisition means for acquiring measurement data for the electrical device;
Transmitting means for transmitting the measurement data for the electric device acquired by the acquiring means, together with the identification data given to the connection port to which the electric device is connected, to the power management apparatus via the network;
A power supply device comprising: A power supply device connected via a network to a power management device that manages power consumption of the electrical equipment,
One or a plurality of connection ports that can be connected to the electric device and supply electric power to the electric device;
Time series data including at least one value of current and phase difference of power supplied to the electrical equipment connected to the connection port, or characteristic data of the electrical equipment obtained from the time series data, or both Including acquisition means for acquiring measurement data for the electrical device;
Connection management data including identification data assigned to the connection port to which the electrical device is connected is transmitted via the network and includes identification data of the connection port and identification data of the electrical device connected to the connection port. And a communication means for performing communication for inquiring of the reference data for the electrical device registered in the connection port, with respect to a database storing the reference data of the measurement data for the electrical device,
By comparing the reference data for the electrical device registered in the connection port, which is inquired using the communication unit, and the measurement data acquired by the acquisition unit, the electrical device connected to the connection port Detection means for detecting changes;
A power supply device comprising: A power supply device connected via a network to a power management device that manages power consumption of the electrical equipment,
One or a plurality of connection ports that can be connected to the electric device and supply electric power to the electric device;
Time series data including at least one value of current and phase difference of power supplied to the electrical equipment connected to the connection port, or characteristic data of the electrical equipment obtained from the time series data, or both Including acquisition means for acquiring measurement data for the electrical device;
Storage means for storing identification data of the connection port, connection management data including identification data of an electrical device connected to the connection port, and reference data of the measurement data for the electrical device;
Detecting means for detecting a change in the electrical device connected to the connection port by comparing the reference data for the electrical device registered in the connection port and the measurement data acquired by the acquisition unit;
A power supply device comprising: A power supply device;
A power management device that is connected to the power supply device via a network and manages the power consumption of the electrical device;
With
The power supply device
One or a plurality of connection ports that can be connected to the electric device and supply electric power to the electric device;
Time series data including at least one value of current and phase difference of power supplied to the electrical equipment connected to the connection port, or characteristic data of the electrical equipment obtained from the time series data, or both Including acquisition means for acquiring measurement data for the electrical device;
Transmitting means for transmitting the measurement data for the electric device acquired by the acquiring means, together with the identification data given to the connection port to which the electric device is connected, to the power management apparatus via the network;
Have
The power management device includes:
Receiving means for receiving, from the power supply device, the identification data of the connection port transmitted by the transmission unit, and the measurement data for the electrical device connected to the connection port;
Storage means for storing identification data of the connection port, connection management data including identification data of an electrical device connected to the connection port, and reference data of the measurement data for the electrical device;
The reference data for the electrical device registered in the connection port represented by the identification data received by the receiving unit is read from the storage unit, and the reference data and the measurement data received by the receiving unit together with the identification data are obtained. Detecting means for detecting a change of the electrical device connected to the connection port by comparing; and
A power management system comprising:

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