WO2013157031A1 - Device identification apparatus, and registration method for device identification apparatus - Google Patents
Device identification apparatus, and registration method for device identification apparatus Download PDFInfo
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- WO2013157031A1 WO2013157031A1 PCT/JP2012/002608 JP2012002608W WO2013157031A1 WO 2013157031 A1 WO2013157031 A1 WO 2013157031A1 JP 2012002608 W JP2012002608 W JP 2012002608W WO 2013157031 A1 WO2013157031 A1 WO 2013157031A1
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- the present invention relates to a device identification device that identifies an operation mode of an electric device from a current waveform of the electric device that consumes power, and a method for registering the device identification device.
- Patent Document 1 Japanese Patent Laid-Open No. 2010-181159
- the problem is to “provide an inexpensive and simple method for identifying an energy consuming appliance”
- the method for identifying an energy consuming appliance is an energy consumption system in which a plurality of energy consuming appliances are installed.
- grasp the difference between the work rate immediately before performing the operation and the work rate in the steady state after performing the operation create a work rate change amount database, and
- the amount of change in the work rate and the work rate change amount data stored in the work rate change amount database are collated, and energy is actually consumed from the collation result. Identifying energy consuming appliances "and identifying operating devices and operating modes from measured power consumption patterns and presenting them to the user , Promote energy-saving devices have been proposed.
- Patent Document 1 in order to specify a device and an operation mode according to a power consumption pattern, it is necessary to register in advance what power consumption pattern each operation mode of each device is.
- Patent Document 1 the current waveform measured and collected by operating the device for a certain period is automatically classified, and then the classified waveform is presented to the user as the operation mode, and the device and the operation mode are registered for it. Are described ([0140] to [0154], FIGS. 10 to 13).
- the user may not be able to grasp which operation mode it is operating in.
- the operation mode is automatically determined, if the device has multiple internal operation modes for one operation mode, it is not necessary for the user even though they are in the same operation mode. Thus, it may be presented as a plurality of operation modes, and registration work is expected to be difficult.
- an object of the present invention is to provide a device identification device and a device identification method that allow a user to appropriately register a device and its operation mode.
- a device to be identified and its operation mode can be registered appropriately, and usability can be improved.
- FIG. 1 It is a block diagram which shows the structure of the apparatus identification device concerning Example 1 of this invention. It is a figure which shows the example of installation of an apparatus identification device. It is a flowchart of the apparatus information registration process before an operation start. It is a flowchart of a measurement process. It is a flowchart of an operation mode name registration process. It is a flowchart at the time of displaying an operation condition after an operation start. It is a flowchart of a process which presents a device information registration recommended time zone. It is a flowchart of the apparatus information registration process after an operation start. It is a figure which shows the change of an electric current waveform. It is a figure which shows the start screen at the time of apparatus information registration.
- FIG. 1 shows a connection diagram of the device identification apparatus according to the first embodiment of the present invention.
- a display device 102 As shown in FIG. 1, a display device 102, an instruction input unit 103, an I / O interface 104, a CPU 105, a memory 106, a timer 107, an auxiliary storage interface 108, and a measurement interface 119 are coupled by a bus.
- a power meter 101 is provided outside the device identification apparatus 100 and is connected to a measurement interface 119 of the device identification apparatus 100.
- the wattmeter 101 is connected between the AC power source 001 and the electric device 002 to be measured.
- the wattmeter 101 can measure alternating current voltage and current at intervals of about 10000 times per second, and quantifies the voltage / current waveform. According to an instruction from the device identification apparatus 100, at least the time corresponding to one period of alternating current, The voltage and current are measured at the time intervals and the measurement results are transmitted to the device identification apparatus 100. The wattmeter 101 transmits one measurement result in response to one measurement instruction according to an instruction from the device identification apparatus 100, or performs measurement and transmission of the measurement result at a constant interval until there is a stop instruction. Like that.
- the display device 102 displays information on a display mechanism such as an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence), and displays a series of operation screens such as a data registration screen and an identification result screen.
- a display mechanism such as an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence)
- a series of operation screens such as a data registration screen and an identification result screen.
- the instruction input unit 103 is a device that receives an operation instruction from the user, and is a pointing device represented by a mouse, a touch panel integrated with the display device 102, or the like in addition to buttons.
- a button displayed on the display device 102 is operated using a pointing device such as a mouse of the instruction input unit 103 or a touch panel.
- the display device 102 and the instruction input unit 103 are connected to other parts by the I / O interface 104.
- a CPU (Central Processing Unit) 105 executes a control program 110 loaded in the memory 106 and controls each unit of the device identification apparatus 100.
- a control program 110 loaded in the memory 106 and controls each unit of the device identification apparatus 100.
- the memory 106 is composed of a semiconductor device such as a DRAM (Dynamic Random Access Memory) and is an area for temporarily storing programs and data.
- DRAM Dynamic Random Access Memory
- the timer 107 is used to hold the current time by a crystal oscillation mechanism or the like and to measure the timing at which the wattmeter 101 performs measurement.
- the auxiliary storage interface 108 serves to connect the auxiliary storage device 109 to other parts.
- the auxiliary storage device 109 is a storage device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive), and includes a control program 110, a waveform pattern list 116, a device / operation mode name list 117, and a measurement history 118. Is stored.
- HDD Hard Disk Drive
- SSD Solid State Drive
- the control program 110 includes a UI control unit 111, a measurement control unit 112, a feature extraction unit 113, a pattern identification unit 114, and a data registration reference unit 115.
- the UI control unit 111 is a part that displays and switches the screen, and controls display on the display device 102.
- the measurement control unit 112 gives a measurement instruction to the wattmeter 101 via the measurement interface 119 and inputs a measurement result.
- the feature extraction unit 113 analyzes the measured current waveform and extracts a waveform pattern that is a feature component.
- the waveform pattern is a collection of numeric strings that indicate the current waveform features, and is created based on the frequency analysis result of the current waveform in order to distinguish the measured current waveform. For frequency analysis, Fourier transform or the like is used.
- the calculated parameters may be reduced by principal component analysis or the like. If the feature amount can be expressed with a small number of parameters, the calculation amount of matching determination between patterns can be reduced, and the data amount of the pattern necessary for matching determination can be reduced.
- the method of calculating the frequency characteristics is not limited to this, but a method that represents the characteristics of the current waveform and can be identified.
- the pattern identification unit 114 determines whether the waveform pattern extracted by the feature extraction unit 113 matches the waveform pattern in the waveform pattern list 116 that has been measured and registered in advance.
- the coincidence determination of the waveform pattern is performed, for example, by calculating a square error of each numerical value constituting the waveform pattern and determining that the closest error is a match. However, if the closest waveform pattern is always determined to match, even if an unknown waveform pattern is detected, it will be determined as one of the registered waveform patterns. Keep it. Even if the closest waveform pattern is found, if there is a difference greater than or equal to this threshold value, it is not determined as a match.
- the waveform pattern matching determination method may be any method that can quantitatively calculate how close the waveform patterns to be compared are, and a method other than the square error may be used.
- the data registration reference unit 115 registers and refers to the waveform pattern list 116, the device / operation mode name list 117, and the measurement history 118.
- the pattern identification unit 114 determines whether the waveform pattern extracted by the feature extraction unit 113 matches the waveform pattern in the waveform pattern list 116 that has been measured and registered in advance. This is performed when the pattern list 116 is not found.
- the waveform pattern identified by the pattern identification unit 114 is sequentially recorded in the measurement history 118 together with the time information and the power value.
- the waveform pattern list 116, the device / operation mode name list 117, and the measurement history 118 each is referred to.
- FIG. 2 A method for installing the device identification apparatus 100 will be described with reference to FIG. As shown in FIG. 2, the device identification apparatus 100 installs a wattmeter 101 on a distribution board, and performs power measurement and operation mode estimation of an electrical device to which power is supplied from the installation location. It is assumed that the wattmeter 101 can be freely removed and can be installed at a specific branch in the distribution board as shown in FIG.
- the electric devices indicate that a plurality of electric devices are connected.
- the operation mode represents an operation state of the device.
- the operation mode represents an operation state of the device.
- FIG. 9 shows a current waveform of an electrical device that operates on an alternating current, which is a measurement target. 901 and 903 have different current waveforms, which indicates that the current waveform has changed at the time of 902.
- the current waveform of the electric device changes depending on the operation mode, and the device operating and the operation mode can be identified by detecting the difference in the current waveform.
- Registration of information on electrical equipment to be used First, the information on the electric device input by the instruction input unit 103 is registered in the device / operation mode name list. Registration of the information on the electrical device is a process necessary before operating the device identification apparatus 100. A method for registering device information in the device identification apparatus 100 will be described with reference to the flowchart shown in FIG. Registration of device information is performed when current measurement is performed by operating a device registered by the user. First, the current measurement result is registered, and the device input by the instruction input unit 103 and the name of the operation mode are registered for the registered measurement result. FIG. 10 shows a series of transitions of the operation screen displayed on the display device 102.
- the device identification device 100 is set. First, information on the electrical equipment to be measured is registered (steps 301 to 303, FIGS. 10A to 10C). In the case of a device to be registered for the first time, the device name is registered (step 303, FIG. 10 (c)). In the case of a registered device, the device is selected from the device list (step 302, FIG. 10 (b)). When the selection of the device to be registered or the input of the device name is completed, the screen changes to the measurement start screen (FIG. 10 (d)).
- a message to start measurement by operating the registered device and a measurement start button are displayed (step 304, FIG. 10 (d)).
- the user After selecting the measurement start button, the user operates the electric device to be registered in an operation mode in which the user wants to register. For devices that do not have a specific operation mode, it is only necessary to turn on the power.
- a message indicating that measurement is in progress and a stop button are displayed on the measuring screen (FIG. 10 (e)) displayed by selecting the start button (step 305, FIG. 10 (e)).
- the user can select the stop button at any time to stop the measurement, but to prevent it from stopping when the measurement is insufficient, switch on the electrical equipment to be measured or change the operation mode.
- a message to wait for the stop is displayed as shown in FIG.
- the message is switched to a stable message as shown in FIG. Whether or not the current waveform has reached a steady state is determined by whether or not a new current waveform is no longer measured.
- the user After the measurement for a certain time, the user selects the stop button and stops the measurement. When the measurement is stopped, the measurement result screen is displayed (step 307, FIG. 10 (g)). When registering the measurement result (step 308: YES), the user inputs the measured operation mode name (step 309). A method for inputting the operation mode name will be described later.
- step 310 When the operation mode name has been entered, a message requesting the user to operate in the same operation mode is displayed to confirm whether or not the registered operation mode can be correctly identified (step 310, FIG. 10 (i)). After the user operates the device according to the request, it is confirmed on the screen as shown in FIG. 10 (k) whether or not the identification has been normally performed. If the identification is not successful (step 311: NO), registration is performed again (step 304).
- step 311 If there is no problem in the identification (step 311: YES), it is confirmed whether or not the registration is completed (step 312, FIG. 10 (l)).
- step 312: NO When another operation mode is continuously registered (step 312: NO), the process returns to step 304. Even when the measurement result is not registered (step 308: NO), the measurement is ended (step 312: YES), or the process returns to step 304 and measurement is performed again (step 312: NO).
- ⁇ Current measurement and waveform pattern extraction> With reference to the flowchart shown in FIG. 4, a series of operations for measuring a current and extracting a waveform pattern and creating a measurement history representing a temporal change in the amount of current will be described.
- the current is measured as a continuous value for at least one AC period (20 milliseconds when the power supply frequency is 50 Hz).
- the time length to be measured at a time may be one AC period or more, but is preferably an integral multiple of the AC period. This is because the frequency analysis cannot be performed correctly unless measurement is performed in an integral multiple of the period. In addition, since the frequency analysis result may be different, the registered waveform and the waveform to be measured and collated must always match.
- the current waveform which is a continuous change in the amount of current measured in steps 401 and 402, is converted into a waveform pattern composed of a small number of features (several sequences) by frequency analysis by the feature extraction unit 113 (step 403).
- the feature extraction method will be described on the assumption that a principal component analysis is performed on a power spectrum obtained by Fourier transform, and a feature amount is selected from the first principal component to the Nth principal component.
- N is a number of 2 or more.
- the value of N is not particularly defined, but there is no problem if the number is sufficiently smaller than the number of frequency components obtained by Fourier transform.
- the purpose of narrowing down the feature components to a small number of feature amounts is to reduce the amount of registration data and to reduce the amount of calculation when matching with registered patterns is performed. Therefore, other methods may be used as long as the same effect can be obtained.
- the current waveform converted to the waveform pattern is identified by the pattern identifying unit 114 as a pattern that has been measured and registered so far, or an unregistered pattern (steps 404 and 405).
- the pattern identification unit 114 performs identification by comparing the waveform pattern list 116 and the waveform pattern extracted by the feature extraction unit 113.
- An example of the waveform pattern list 116 is shown in FIG.
- the waveform pattern list includes a pattern ID 1301 uniquely assigned to each pattern, an operation mode ID 1302 indicating which operation mode the waveform pattern is, and a numerical value sequence 1303 indicating the pattern.
- the corresponding pattern exists in the waveform pattern list 116, that is, if it is a registered pattern, the current time, the pattern ID of the pattern, and the electric energy are recorded in the measurement history 118 (step 411). If there is no corresponding pattern, the waveform pattern measured this time is newly registered in the waveform pattern list 116, and a pattern ID is assigned (step 406).
- the pattern ID is recorded in the measurement history 118 (step 407).
- An example of the measurement history 118 is shown in FIG. It consists of a measurement time 1304, power 1305, and pattern ID 1306.
- Steps 408 to 410 are processes for grouping the measured patterns according to the similarity, and this corresponds to a case where the user tries to register a plurality of modes in one measurement.
- the method of registering the current waveform pattern of electrical equipment is basically characterized by registering one operation mode in one measurement, and registering it as the same operation mode even if multiple patterns are measured at one time. However, when a pattern with a significantly different pattern is measured, it is presented to the user and selected to be registered as one operation mode or a plurality of operation modes.
- a square error with the pattern measured immediately before is calculated, and it is confirmed whether the value is equal to or less than a predetermined threshold value. If it is equal to or less than the threshold (step 408: YES), it is recognized as the same operation mode as the previous measurement pattern. If it is equal to or greater than the threshold value (step 408: NO), it is recognized as an operation mode different from the previous measurement pattern, and a new operation mode is defined.
- the pattern similarity determination method may be any method that can quantitatively calculate how close the patterns to be compared are, and a method other than the square error may be used.
- FIG. 13C shows an example of a device / operation mode name list.
- the device ID 1307 is an ID uniquely assigned to the device.
- the device name 1308 is a name of a device registered by the user.
- the operation mode ID 1309 is the same as the operation mode ID 1302 in FIG.
- the operation mode name 1310 is the name of the operation mode registered by the user.
- ⁇ Enter operation mode name> A method of inputting an operation mode name after measurement will be described with reference to a flowchart shown in FIG. 5 and a screen transition diagram shown in FIG. This corresponds to step 309 in FIG.
- the process branches depending on whether or not it is a registered operation mode. If the operation mode has been registered (step 501: YES), a message to that effect is displayed (step 507). When the user sets a name again for this operation mode (step 508: YES), the operation mode is selected (step 509). If the name is not changed (step 508: NO), the process ends.
- the selection of the operation mode means that the user selects an operation mode for setting a name from one or more operation modes displayed on the screen.
- the user since the user may intentionally switch the operation mode of the device, multiple operation modes may be measured at one time. In this case, the user selects the operation mode from the measurement result screen. Select one by one and register the name of the operation mode. This is shown in FIGS. 10 (g) to 10 (h).
- FIGS. 10 (g) to 10 (h) For the operation mode with no name set, that is, the operation mode registered for the first time in the current measurement, temporary names such as “mode 1” and “mode 2” are displayed as shown in the figure. The user selects this one by one and registers the name.
- step 510 After changing the name of the selected operation mode (step 510), when changing the name of another operation mode (step 511: YES), the user is again made to select the mode (step 509). If the name of another operation mode is not changed, the process is terminated (step 511: NO).
- step 501: NO When the operation mode is unregistered or there are a plurality of operation modes, and at least one of the operation modes is unregistered (step 501: NO), the user is allowed to select an operation mode for setting a name (step 502). If an operation mode whose name has already been registered is included and the user selects this operation mode (step 503: YES), the name of the operation mode is changed (step 505).
- step 503 When an operation mode for which a name has not yet been set is selected (step 503: NO), the name of the operation mode is set (step 504). In addition, when there is an operation mode and name setting is performed (step 506: YES), the operation mode is selected again (step 502). If there is no other operation mode or no other operation mode is set (step 506: NO), the process is terminated.
- a user starts operation and ends measurement by operating in a specific device and operation mode to be registered, and the measured current waveform is 1 or Register multiple operation modes.
- the user can recognize and register the device and operation mode during the measurement period.
- FIG. 12 shows a state where two current waveforms are superimposed. 2 (a) and 2 (b) are current waveforms of different devices, and FIG. 12 (c) is a current waveform when the devices of FIGS. 12 (a) and 12 (b) are operated simultaneously. It is. It can be seen that FIG. 12 (c) is the sum of FIG. 12 (a) and FIG. 12 (b).
- the waveform pattern which is the feature value extracted from the current waveform, is used to determine whether the current waveform matches. However, if the current waveform and the waveform pattern extracted from it have a linear relationship, Kirchhoff's law is established for the waveform pattern as well. To do. Therefore, by creating a combination of registered waveform patterns for the waveform pattern extracted from the current waveform measured on the trunk side and performing a match determination, it is possible to determine which device is operating in which operation mode combination. presume.
- FIG. 6 is a flowchart for displaying the operation status of each device at the request of the user after the start of operation. After the operation is started, measurement is always performed until the user stops, and the measurement history is accumulated. The user can check the operation status of each device at an arbitrary timing.
- Fig. 11 (a) shows the display screen of the operating status of each device during operation.
- the display screen includes a power amount 1101, a device list 1102, an operation status 1103 of each device, a time 1104, and a scroll bar 1105.
- the display is constantly updated, and the past situation can be confirmed by moving the scroll bar 805.
- the names of the devices in the device list 1102 and the operation mode names of the operation status 1103 are input by the user.
- the screen display of FIG. 11A corresponds to steps 610 to 611 in the flowchart shown in FIG.
- step 612 YES
- step 613 a time zone in which the operation mode cannot be recognized
- step 613 a message for confirming the situation is displayed to the user (step 613, FIG. 11 (b)).
- step 614 YES
- step 615 a message requesting registration of device information
- step 616 a message requesting re-registration of registered device information
- a time zone suitable for registration is obtained from the measurement history, and guidance by message display is performed (step 617).
- the time zone suitable for registration is a time zone in which the operation mode of other operating devices does not change and the current waveform is constant. By performing registration under such circumstances, the operation of other devices is prevented from affecting the registration.
- the processing for obtaining this time zone will be described later using the flowchart shown in FIG.
- step 618 After the guidance of the time zone suitable for registration or if there is no unregistered operation mode in step 612, it is next checked whether there is any device that has not been detected for a certain period of time (step 618). If there is such a device (step 618: YES), a message to that effect is displayed (step 619), and it is confirmed whether the device is not currently used (step 620).
- step 620 When the user has not used the device or the frequency of use is low (step 620: YES), it is confirmed whether or not the information on the device is to be deleted, and the user has instructed the deletion (step 621: YES) ), The information (information about the device in the device / operation mode name list and the pattern of the related waveform pattern list) is deleted, and the process ends (step 622).
- the more device information that is registered the greater the number of times that matching is determined during pattern identification, leading to an increase in processing time. Therefore, the processing time is shortened by deleting unnecessary information.
- the user can refer to the measurement history, and inquire the user about the presence of an unregistered device and the device that is not already in use.
- Device information will be updated according to the actual usage of the device.
- the device identification device 100 is temporarily stopped, and the power meter 101 is connected to the system connected to the device to be registered at the branch in the distribution board as shown in FIG. Connect and measure.
- the device is not operated only during measurement.
- devices that always need to be energized such as refrigerators, are connected and difficult to stop, and it is not preferable to stop the device identification device 100 itself due to the nature of the devices that are always operating.
- the current waveform is measured before the registered device is operated and the current waveform is measured, that is, in a state where the registered device is not operated.
- the current waveform measured at this time is the waveform of the device operating at that time.
- the current waveform that is the sum of this current waveform and the current waveform of the device to be registered should be measured, so subtract the previously measured current waveform from the current waveform.
- the current waveform of the device to be registered can be obtained.
- the waveform of the device to be registered cannot be obtained correctly. That is, in order to obtain the current waveform of a device to be registered in a situation where other devices are operating simultaneously, it is necessary that the other devices continue to operate in the same operation mode.
- the part where the same device has been operating in the same operation mode for a certain time or more is searched from the measurement history.
- the operation mode of each device that is, a time zone in which the current waveform does not change and the power consumption does not change is searched for for a predetermined time or longer.
- the air conditioner is “weak” between 5 and 6 o'clock and is operating at a constant power. In such a place, it can be said that the current waveform of the device to be registered can be measured by the method described above.
- step 702 it is searched from the measurement history whether there is a device that has been operating for a certain time or more and the operation mode is the same and the power consumption is constant (step 702). Since the purpose of referring to the history at this time is to search for a time zone in which the device is expected to operate in the same way in the future, the search range is not limited to one day, but refers to the measurement history of the past one week or so. , Take an average. If there is a corresponding time zone, a message for guiding the time zone as a time zone suitable for registration is displayed (step 709).
- step 704 the device list is presented to the user and an arbitrary device is designated (step 704).
- the information of the specified device is removed from the measurement history, and the device that has been operating for a certain period of time and the operation mode are the same and the power consumption is constant. It is searched whether there is any (step 705).
- step 706 YES If there is a corresponding time zone, a message for guiding the time zone as a time zone suitable for registration is displayed (step 706: YES). If the corresponding time zone is not found (step 706: NO), the user is confirmed whether there is any other device that can be stopped without any problem (step 707). If there is a device that can be stopped, the process returns to step 705 to designate the device.
- step 704 and 707 NO
- the device identification device 100 is temporarily stopped, and the power meter 101 is connected to the branch of the distribution board to which the electric device to be registered is connected to perform measurement. A message to guide you is displayed.
- Fig. 8 shows a flowchart of the process for newly registering while other devices are actually operating.
- the difference from the pre-operation registration process described in FIG. 3 is that the current waveform is measured at that time before measurement of the registered device (step 804) and the current measured in advance from the measurement result of the registered device.
- a feature extraction is performed by subtracting the waveform (step 806).
- the current waveform of the device to be registered is obtained by subtracting the current waveform portion measured in advance from the current waveform measured in step 806, and feature extraction (calculation of waveform pattern) and registration are performed from this current waveform.
- the operation mode of the electric device 002 is registered one by one.
- the operation mode of the electric device 002 is registered one by one.
- FIG. 14 shows a connection diagram of the device identification apparatus according to the second embodiment of the present invention.
- the device identification apparatus 1400 is connected to the data server 1410 via the network 1450.
- the network 1450 is a public network such as the Internet. However, a private network such as a LAN connecting the data server 1400 and the user device identification apparatus 100 may be used.
- the data server 1410 has a form in which a CPU 1411, a memory 1412, an auxiliary storage interface 1413, and a network interface 1414 are coupled by a bus.
- the auxiliary storage interface 1413 serves to connect the auxiliary storage device 1418 and other parts.
- the auxiliary storage device 1418 holds a waveform pattern list 1415, a device / operation mode name list 1416, and a measurement history 1417.
- the device identification apparatus 1400 has the exception that the network interface 1404 is coupled to the bus and that the waveform pattern list, the device / operation mode name list, and the measurement history are not stored in the auxiliary storage device 109.
- the configuration is the same as that of the device identification apparatus 100 of the first embodiment.
- Other configurations have the same functions as the configurations denoted by the same reference numerals shown in FIG. 1 and have not been described.
- the network interface 104 is connected to the data server 1410 via the network 1450, and registers / deletes / updates the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 to the data server 1410.
- the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 are stored on the data server 1410, so that the capacity of the auxiliary storage device 109 of the device identification device 1400 can be reduced. There is. Further, since there is no need to rewrite the auxiliary storage device 109, the auxiliary storage device 109 can be made into an inexpensive ROM (Read Only Memory), and the device can be produced at low cost. Further, since a larger data storage area can be secured on the data server 1410 than the auxiliary storage device 109 of the device identification device 1400, a longer-term measurement history can be stored.
- data with high access frequency is stored in the device identification apparatus 1400. It may be.
- the auxiliary storage device 109 of the device identification device 1400 can be realized at a low cost, and a longer-term measurement history can be stored. Cost can be reduced while making it good.
- FIG. 15 shows a connection diagram of the device identification apparatus according to the third embodiment of the present invention.
- the device identification apparatus 1500 is connected to the operation / display terminal 1510 via the network 1450.
- the network 1450 is a private network such as a LAN connecting the operation / display terminal 1510 and the user device identification apparatus 1500. However, it may be a public network such as the Internet.
- the operation / display terminal 1510 has a CPU 1511, a memory 1512, a display device 1513, an instruction input unit 1514, an I / O interface 1515, and a network interface 1516 coupled by a bus.
- operation and display are performed by an operation / display terminal 1510 connected via a network 1450 without a display device and an instruction input unit.
- Other configurations have the same functions as the configurations denoted by the same reference numerals shown in FIG. 1 and have not been described.
- the operation / display terminal 1510 only needs to have the above-described configuration, and may not be a dedicated terminal, but may be a personal computer, a smartphone, or a television having a network function. In the figure, only one operation / display terminal 1510 is written, but there may be a plurality of terminals.
- the operation / display portion By separating the operation / display portion from the device identification device 1500, as long as the operation / display terminal 1510 can communicate with the device identification device 1500 via the network 1450, the operation status of the electric device is no matter where the user is. The convenience can be improved.
- the device identification device 1500 can be configured at low cost.
- the user when the user operates the device identification device 1500 or confirms the measured operation status of the electrical device 002, it is not necessary to move to the place where the device identification device 1500 is installed. Since the operation of the device identification device 1500 and the measurement result can be referred from anywhere as long as there is a display terminal, a user-friendly device can be provided.
- FIG. 16 shows a connection diagram of the device identification apparatus according to the fourth embodiment of the present invention.
- the device identification apparatus 1500 is connected to the operation / display terminal 1510 and the data server 1410 via the network 1450.
- the details of the constituent elements have the same functions as the configurations denoted by the same reference numerals shown in FIGS. 1, 14, and 15 and have not been described.
- the device identification device 1500, the operation / display terminal 1510, and the data server 1410 are connected to the same network 1450. However, the operation / display terminal 1510 and the data server 1410 do not need to be connected to the same network. What is necessary is just to be able to connect with the apparatus identification device 1500.
- the auxiliary storage device 109 can be an inexpensive ROM (Read Only Memory), the display device 102, the instruction input unit 103, the I / O
- the device identification apparatus 1500 can be configured at a low cost in that the O interface 104 is unnecessary.
- the operation / display terminal 1510 can communicate with the device identification apparatus 1500 via the network 1450, the user can check the operation status of the electric device from anywhere and the convenience is improved.
- data having a high access frequency is stored in the device identification apparatus 1500. It may be.
- the device identification device 1500 can be realized at low cost, and it is not necessary to move to the place where the device identification device 1500 is installed. If there is an operation / display terminal, the device identification device 1500 can be operated from anywhere. Since operations and measurement results can be referred to, a user-friendly device can be provided.
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
- each of the above-described configurations, functions, processing units, processing steps, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
- control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.
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Abstract
Provided are a device identification apparatus and a device identification method which enable a user to appropriately register a device and the operation mode thereof.
A device identification device is connected to a wattmeter for measuring the current waveform of one or more power-consuming electric device and identifies the operation mode of the electric device from the current waveform, the device identification device being provided with: a measurement control unit which performs, on the wattmeter, the control of start and stop of measurement of the current waveform of the electric device; a measurement input unit to which the current waveform measured during a measurement period from the start to the stop is inputted; a waveform pattern extraction unit which extracts one or more waveform pattern from the inputted current waveform; a pattern identification unit which classifies the extracted one or more waveform pattern by operation mode; a registration unit which registers the operation mode for the classified waveform pattern; and an instruction unit which instructs the measurement control unit to start and stop the measurement of the current waveform and instructs the registration unit to register the operation mode of the waveform pattern.
Description
本発明は、電力を消費する電気機器の電流波形から電気機器の動作モードを識別する機器識別装置、および、機器識別装置の登録方法に関する。
The present invention relates to a device identification device that identifies an operation mode of an electric device from a current waveform of the electric device that consumes power, and a method for registering the device identification device.
本技術分野の背景技術が、特開2010-181159号公報(特許文献1)に開示されている。この公報では、「安価で簡易な、エネルギー消費器具の特定方法を提供すること」を課題とし「エネルギー消費器具の特定方法は、複数のエネルギー消費器具が設置されているエネルギー消費系において、各エネルギー消費器具の運転開始又は終了操作時に、当該操作を行なう直前の仕事率と当該操作を行った後の定常状態での仕事率との差を把握して、仕事率変化量データベースを作成し、エネルギー消費系で仕事率変化を検出した際、当該仕事率変化量と仕事率変化量データベースに格納されている仕事率変化量データとを照合し、その照合結果から実際にエネルギー消費が行われているエネルギー消費器具を特定する。」と記載されており、計測される消費電力パターンから動作中の機器、および、動作モードを識別してユーザに提示し、省エネを促す装置が提案されている。
Background art in this technical field is disclosed in Japanese Patent Laid-Open No. 2010-181159 (Patent Document 1). In this gazette, the problem is to “provide an inexpensive and simple method for identifying an energy consuming appliance”, and “the method for identifying an energy consuming appliance is an energy consumption system in which a plurality of energy consuming appliances are installed. At the time of starting or ending the operation of the consumer appliance, grasp the difference between the work rate immediately before performing the operation and the work rate in the steady state after performing the operation, create a work rate change amount database, and When a change in work rate is detected in the consumption system, the amount of change in the work rate and the work rate change amount data stored in the work rate change amount database are collated, and energy is actually consumed from the collation result. Identifying energy consuming appliances "and identifying operating devices and operating modes from measured power consumption patterns and presenting them to the user , Promote energy-saving devices have been proposed.
上記特許文献1のように、消費電力パターンによって機器及び動作モードの特定を行うには、各機器の各動作モードがどのような消費電力パターンであるかを予め登録しておく必要がある。
As described in Patent Document 1, in order to specify a device and an operation mode according to a power consumption pattern, it is necessary to register in advance what power consumption pattern each operation mode of each device is.
ここで、特許文献1では、一定期間機器を動作させて計測・収集した電流波形を自動的に分類した上で、分類した波形を動作モードとしてユーザに提示し、それに対し機器及び動作モードを登録させる方法が記載されている([0140]~[0154]、図10~図13)。
Here, in Patent Document 1, the current waveform measured and collected by operating the device for a certain period is automatically classified, and then the classified waveform is presented to the user as the operation mode, and the device and the operation mode are registered for it. Are described ([0140] to [0154], FIGS. 10 to 13).
しかし、この方法では、ユーザは、いつどの機器をどの動作モードで動作させたのかを正確に覚えておかなければならず、ユーザにとっての負担が大きい。
However, with this method, the user has to remember exactly when and which device is operated in which operation mode, which places a heavy burden on the user.
また、エアコンのように自動的に動作モードを変えながら動作する機器では、どの動作モードで動作したかをユーザが把握できない場合も考えられる。
Also, in the case of a device that operates while automatically changing the operation mode, such as an air conditioner, the user may not be able to grasp which operation mode it is operating in.
さらに、動作モードの判別を自動的に行う仕組みのため、機器が一つの動作モードに対して内部的に複数の動作モードを持っている場合、同じ動作モードであるにも関わらず、ユーザに対して複数の動作モードとして提示してしまうことが考えられ、登録の作業が困難になることが予想される。
In addition, since the operation mode is automatically determined, if the device has multiple internal operation modes for one operation mode, it is not necessary for the user even though they are in the same operation mode. Thus, it may be presented as a plurality of operation modes, and registration work is expected to be difficult.
そこで、本発明の目的は、ユーザが機器及びその動作モードを適切に登録できる機器識別装置および機器識別方法を提供することにある。
Therefore, an object of the present invention is to provide a device identification device and a device identification method that allow a user to appropriately register a device and its operation mode.
上記目的を達成するために、例えば特許請求の範囲に記載の構成を採用する。
In order to achieve the above object, for example, the configuration described in the claims is adopted.
本発明によれば、電流波形計測による機器識別装置において、識別する機器及びその動作モードを適切に登録することができ、使い勝手を向上させることができる。
According to the present invention, in a device identification device based on current waveform measurement, a device to be identified and its operation mode can be registered appropriately, and usability can be improved.
本発明の第一の実施形態に係る機器識別装置の接続図を図1に示す。機器識別装置100では、図1に示されるように、表示装置102、指示入力部103、I/Oインターフェース104、CPU105、メモリ106、タイマー107、補助記憶インターフェース108、計測インターフェース119が、バスにより結合されている。また、機器識別装置100の外部に電力計101を備え、機器識別装置100の計測インターフェース119に接続されている。電力計101は交流電源001と計測対象となる電気機器002との間に接続される。
FIG. 1 shows a connection diagram of the device identification apparatus according to the first embodiment of the present invention. In the device identification apparatus 100, as shown in FIG. 1, a display device 102, an instruction input unit 103, an I / O interface 104, a CPU 105, a memory 106, a timer 107, an auxiliary storage interface 108, and a measurement interface 119 are coupled by a bus. Has been. In addition, a power meter 101 is provided outside the device identification apparatus 100 and is connected to a measurement interface 119 of the device identification apparatus 100. The wattmeter 101 is connected between the AC power source 001 and the electric device 002 to be measured.
電力計101は交流の電圧と電流を毎秒10000回程度の間隔で計測でき、電圧・電流の波形を数値化するもので、機器識別装置100からの指示により、少なくとも交流1周期分の時間、前述の時間間隔で電圧と電流の計測を行い、計測結果を機器識別装置100に伝送する。電力計101は、機器識別装置100からの指示により、1回の計測指示に対し1回の計測結果を伝送するか、あるいは、停止指示があるまで、一定間隔で計測と計測結果の伝送を行うようにする。
The wattmeter 101 can measure alternating current voltage and current at intervals of about 10000 times per second, and quantifies the voltage / current waveform. According to an instruction from the device identification apparatus 100, at least the time corresponding to one period of alternating current, The voltage and current are measured at the time intervals and the measurement results are transmitted to the device identification apparatus 100. The wattmeter 101 transmits one measurement result in response to one measurement instruction according to an instruction from the device identification apparatus 100, or performs measurement and transmission of the measurement result at a constant interval until there is a stop instruction. Like that.
表示装置102は、LCD(Liquid Crystal Display)、有機EL(Electroluminescence)などの表示機構に情報を表示し、データ登録画面などの一連の操作画面、および、識別結果画面を表示する。
The display device 102 displays information on a display mechanism such as an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence), and displays a series of operation screens such as a data registration screen and an identification result screen.
指示入力部103は、ユーザからの操作指示を受け付ける装置であり、ボタンの他に、マウスに代表されるポインティングデバイス、表示装置102と一体化したタッチパネルなどである。
The instruction input unit 103 is a device that receives an operation instruction from the user, and is a pointing device represented by a mouse, a touch panel integrated with the display device 102, or the like in addition to buttons.
例えば、表示装置102に表示したボタンを、指示入力部103のマウスなどのポインティングデバイス、または、タッチパネルを用いて操作する。
For example, a button displayed on the display device 102 is operated using a pointing device such as a mouse of the instruction input unit 103 or a touch panel.
表示装置102と指示入力部103は、I/Oインターフェース104によって、その他の部分と接続されている。
The display device 102 and the instruction input unit 103 are connected to other parts by the I / O interface 104.
CPU(Central Processing Unit)105は、メモリ106にロードされた制御プログラム110を実行し、機器識別装置100の各部を制御する。
A CPU (Central Processing Unit) 105 executes a control program 110 loaded in the memory 106 and controls each unit of the device identification apparatus 100.
メモリ106は、DRAM(Dynamic Random Access Memory)などの半導体装置で構成されて、プログラムやデータを一時的に格納する領域である。
The memory 106 is composed of a semiconductor device such as a DRAM (Dynamic Random Access Memory) and is an area for temporarily storing programs and data.
タイマー107は、水晶発振機構などにより現在時刻の保持、および、電力計101で計測を行うタイミングを計るために用いられる。
The timer 107 is used to hold the current time by a crystal oscillation mechanism or the like and to measure the timing at which the wattmeter 101 performs measurement.
補助記憶インターフェース108は、補助記憶装置109とその他の部分を接続する役割を果たす。
The auxiliary storage interface 108 serves to connect the auxiliary storage device 109 to other parts.
補助記憶装置109は、HDD(Hard Disk Drive)、または、SSD(Solid State Drive)などの記憶装置であり、制御プログラム110、および、波形パターンリスト116、機器・動作モード名称リスト117、計測履歴118を格納する。
The auxiliary storage device 109 is a storage device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive), and includes a control program 110, a waveform pattern list 116, a device / operation mode name list 117, and a measurement history 118. Is stored.
制御プログラム110は、機能別に構成を示すと、UI制御部111、計測制御部112、特徴抽出部113、パターン識別部114、データ登録参照部115から成る。
The control program 110 includes a UI control unit 111, a measurement control unit 112, a feature extraction unit 113, a pattern identification unit 114, and a data registration reference unit 115.
UI制御部111は、画面の表示・切り替えを行う部分であり、表示装置102への表示を制御する。
The UI control unit 111 is a part that displays and switches the screen, and controls display on the display device 102.
計測制御部112は、計測インターフェース119を介して電力計101に計測指示を行い、計測結果を入力させる。
The measurement control unit 112 gives a measurement instruction to the wattmeter 101 via the measurement interface 119 and inputs a measurement result.
特徴抽出部113は計測された電流波形の解析を行い、特徴成分である波形パターンを抽出する。
The feature extraction unit 113 analyzes the measured current waveform and extracts a waveform pattern that is a feature component.
波形パターンは、計測した電流波形を区別するため、電流波形の特徴量を示した数字列の集まりのことで、電流波形の周波数解析結果をもとに作成する。周波数解析にはフーリエ変換などを用いる。また、主成分分析等により、算出したパラメータの縮約を行ってもよい。少数のパラメータで特徴量を表すことができれば、パターン同士の一致判定の計算量が削減でき、また、一致判定のために必要なパターンのデータ量も少なくすることができる。周波数特性の算出方法はこれに限るものではないが、電流波形の特徴を表し、識別が可能な方法とする。
The waveform pattern is a collection of numeric strings that indicate the current waveform features, and is created based on the frequency analysis result of the current waveform in order to distinguish the measured current waveform. For frequency analysis, Fourier transform or the like is used. The calculated parameters may be reduced by principal component analysis or the like. If the feature amount can be expressed with a small number of parameters, the calculation amount of matching determination between patterns can be reduced, and the data amount of the pattern necessary for matching determination can be reduced. The method of calculating the frequency characteristics is not limited to this, but a method that represents the characteristics of the current waveform and can be identified.
パターン識別部114は、特徴抽出部113が抽出した波形パターンと、予め計測・登録を行った波形パターンリスト116の波形パターンとの一致判定を行う。波形パターンの一致判定は、例えば、波形パターンを構成する各数値の二乗誤差を算出し、最も誤差が近いものを一致と判定するような方法を取る。ただし、最も近い波形パターンを必ず一致と判定するようにすると未知の波形パターンが検出された場合でも登録済みのいずれかの波形パターンと判定されてしまうことになるため、誤差には予め閾値を決めておく。もっとも近い波形パターンが見つかったとしてもこの閾値以上の差があれば、一致と判定しない。尚、波形パターンの一致判定の方法は、比較する波形パターン同士がどれほど近いかを定量的に算出できる方法であればよく、二乗誤差以外の方法を用いてもよい。
The pattern identification unit 114 determines whether the waveform pattern extracted by the feature extraction unit 113 matches the waveform pattern in the waveform pattern list 116 that has been measured and registered in advance. The coincidence determination of the waveform pattern is performed, for example, by calculating a square error of each numerical value constituting the waveform pattern and determining that the closest error is a match. However, if the closest waveform pattern is always determined to match, even if an unknown waveform pattern is detected, it will be determined as one of the registered waveform patterns. Keep it. Even if the closest waveform pattern is found, if there is a difference greater than or equal to this threshold value, it is not determined as a match. The waveform pattern matching determination method may be any method that can quantitatively calculate how close the waveform patterns to be compared are, and a method other than the square error may be used.
データ登録参照部115は、波形パターンリスト116、機器・動作モード名称リスト117、計測履歴118の登録と参照を行う。波形パターンの登録は、パターン識別部114が、特徴抽出部113が抽出した波形パターンと、予め計測・登録を行った波形パターンリスト116内の波形パターンと一致判定を行い、一致する波形パターンが波形パターンリスト116に見つからなかった場合に行われる。
The data registration reference unit 115 registers and refers to the waveform pattern list 116, the device / operation mode name list 117, and the measurement history 118. In the registration of the waveform pattern, the pattern identification unit 114 determines whether the waveform pattern extracted by the feature extraction unit 113 matches the waveform pattern in the waveform pattern list 116 that has been measured and registered in advance. This is performed when the pattern list 116 is not found.
また、機器識別装置100の運用開始後は、パターン識別部114が識別した波形パターンを逐次、時間情報と電力値とともに計測履歴118に記録する。波形パターンリスト116、機器・動作モード名称リスト117、計測履歴118を参照する指示があったときは、それぞれを参照する。
<機器識別装置の設置>
図2で機器識別装置100の設置方法について説明する。機器識別装置100は、図2に示すように、分電盤に電力計101を設置して、設置個所から電力を供給されている電気機器の電力計測と動作モードの推定を行う。電力計101は自由に取り外しができ、図2(a)のほかに図2(b)のように分電盤内の特定の分岐に設置することもできるものとする。図中の電気機器の1~Nは、電気機器が複数接続されていることを示す。
<電流波形計測による電気機器の動作モードの推定>
電流計測による機器識別、および、動作モードの推定の方法について簡単に説明する。ここで動作モードとは、機器の動作状態を表すもので、例えば、エアコンであれば、暖房、冷房、送風などの動作モードがある。図9に示すのは、計測の対象としている、交流で動作する電気機器の電流波形の図である。901と903では電流波形が異なっており、902の時点で電流波形が変化したことを表している。電気機器は動作モードによってこのように電流波形が変化する場合があり、電流波形の違いを検出することで動作している機器、および、動作モードの識別が可能となる。
<使用する電気機器の情報の登録>
まず、指示入力部103によって入力された電気機器の情報を機器・動作モード名称リストに登録する。電気機器の情報の登録は、機器識別装置100を運用する前に必要な処理である。機器識別装置100への機器情報の登録方法を図3に示すフローチャートを用いて説明する。機器情報の登録は、ユーザが登録する機器を動作させて電流計測を行う際に行う。まず、電流計測の結果を登録し、登録した計測結果に対し、指示入力部103によって入力された機器、および、動作モードの名称を登録する。図10に表示装置102に表示される操作画面の一連の遷移を表す。 Further, after the operation of thedevice identification apparatus 100 is started, the waveform pattern identified by the pattern identification unit 114 is sequentially recorded in the measurement history 118 together with the time information and the power value. When there is an instruction to refer to the waveform pattern list 116, the device / operation mode name list 117, and the measurement history 118, each is referred to.
<Installation of device identification device>
A method for installing thedevice identification apparatus 100 will be described with reference to FIG. As shown in FIG. 2, the device identification apparatus 100 installs a wattmeter 101 on a distribution board, and performs power measurement and operation mode estimation of an electrical device to which power is supplied from the installation location. It is assumed that the wattmeter 101 can be freely removed and can be installed at a specific branch in the distribution board as shown in FIG. 2B in addition to FIG. In the figure, 1 to N of the electric devices indicate that a plurality of electric devices are connected.
<Estimation of operation mode of electrical equipment by current waveform measurement>
A method for device identification by current measurement and an estimation of an operation mode will be briefly described. Here, the operation mode represents an operation state of the device. For example, in the case of an air conditioner, there are operation modes such as heating, cooling, and air blowing. FIG. 9 shows a current waveform of an electrical device that operates on an alternating current, which is a measurement target. 901 and 903 have different current waveforms, which indicates that the current waveform has changed at the time of 902. In some cases, the current waveform of the electric device changes depending on the operation mode, and the device operating and the operation mode can be identified by detecting the difference in the current waveform.
<Registration of information on electrical equipment to be used>
First, the information on the electric device input by theinstruction input unit 103 is registered in the device / operation mode name list. Registration of the information on the electrical device is a process necessary before operating the device identification apparatus 100. A method for registering device information in the device identification apparatus 100 will be described with reference to the flowchart shown in FIG. Registration of device information is performed when current measurement is performed by operating a device registered by the user. First, the current measurement result is registered, and the device input by the instruction input unit 103 and the name of the operation mode are registered for the registered measurement result. FIG. 10 shows a series of transitions of the operation screen displayed on the display device 102.
<機器識別装置の設置>
図2で機器識別装置100の設置方法について説明する。機器識別装置100は、図2に示すように、分電盤に電力計101を設置して、設置個所から電力を供給されている電気機器の電力計測と動作モードの推定を行う。電力計101は自由に取り外しができ、図2(a)のほかに図2(b)のように分電盤内の特定の分岐に設置することもできるものとする。図中の電気機器の1~Nは、電気機器が複数接続されていることを示す。
<電流波形計測による電気機器の動作モードの推定>
電流計測による機器識別、および、動作モードの推定の方法について簡単に説明する。ここで動作モードとは、機器の動作状態を表すもので、例えば、エアコンであれば、暖房、冷房、送風などの動作モードがある。図9に示すのは、計測の対象としている、交流で動作する電気機器の電流波形の図である。901と903では電流波形が異なっており、902の時点で電流波形が変化したことを表している。電気機器は動作モードによってこのように電流波形が変化する場合があり、電流波形の違いを検出することで動作している機器、および、動作モードの識別が可能となる。
<使用する電気機器の情報の登録>
まず、指示入力部103によって入力された電気機器の情報を機器・動作モード名称リストに登録する。電気機器の情報の登録は、機器識別装置100を運用する前に必要な処理である。機器識別装置100への機器情報の登録方法を図3に示すフローチャートを用いて説明する。機器情報の登録は、ユーザが登録する機器を動作させて電流計測を行う際に行う。まず、電流計測の結果を登録し、登録した計測結果に対し、指示入力部103によって入力された機器、および、動作モードの名称を登録する。図10に表示装置102に表示される操作画面の一連の遷移を表す。 Further, after the operation of the
<Installation of device identification device>
A method for installing the
<Estimation of operation mode of electrical equipment by current waveform measurement>
A method for device identification by current measurement and an estimation of an operation mode will be briefly described. Here, the operation mode represents an operation state of the device. For example, in the case of an air conditioner, there are operation modes such as heating, cooling, and air blowing. FIG. 9 shows a current waveform of an electrical device that operates on an alternating current, which is a measurement target. 901 and 903 have different current waveforms, which indicates that the current waveform has changed at the time of 902. In some cases, the current waveform of the electric device changes depending on the operation mode, and the device operating and the operation mode can be identified by detecting the difference in the current waveform.
<Registration of information on electrical equipment to be used>
First, the information on the electric device input by the
電気機器の情報を登録する際は、その機器の電力を個別で計測する必要があるため、分電盤の分岐の系統のうち図2(b)のように登録する機器に給電している系統に電力計101を接続する。登録のための設定準備は以上である。次に機器識別装置100の設定を行う。まず、計測を行う電気機器の情報を登録する(ステップ301~303、図10(a)~(c))。初めて登録する機器の場合は、機器名を登録する(ステップ303、図10(c))。登録済みの機器の場合は、機器リストの中から機器を選択する(ステップ302、図10(b))。登録する機器の選択、または機器名称の入力が完了すると計測開始画面(図10(d))に遷移する。
When registering information on electrical equipment, it is necessary to measure the power of the equipment individually. Therefore, the system that feeds power to the equipment to be registered as shown in Fig. 2 (b) among the distribution systems of the distribution board Is connected to the wattmeter 101. This completes preparation for registration. Next, the device identification device 100 is set. First, information on the electrical equipment to be measured is registered (steps 301 to 303, FIGS. 10A to 10C). In the case of a device to be registered for the first time, the device name is registered (step 303, FIG. 10 (c)). In the case of a registered device, the device is selected from the device list (step 302, FIG. 10 (b)). When the selection of the device to be registered or the input of the device name is completed, the screen changes to the measurement start screen (FIG. 10 (d)).
計測開始画面では、登録する機器を動作させて計測を開始する旨のメッセージと計測開始ボタンが表示される(ステップ304、図10(d))。ユーザは、計測開始ボタンを選択したのち、登録する電気機器を登録したい動作モードで動作させる。動作モードが特に存在しない機器については電源を入れるだけでよい。
On the measurement start screen, a message to start measurement by operating the registered device and a measurement start button are displayed (step 304, FIG. 10 (d)). After selecting the measurement start button, the user operates the electric device to be registered in an operation mode in which the user wants to register. For devices that do not have a specific operation mode, it is only necessary to turn on the power.
開始ボタンを選択されることによって表示される計測中画面(図10(e))には、計測中である旨のメッセージと停止ボタンが表示される(ステップ305、図10(e))。ユーザは任意のタイミングで停止ボタンを選択して計測を停止することができるが、計測が不十分な段階で停止することがないよう、計測する電気機器のスイッチON、あるいは、動作モードの変更により変化した電流波形が定常状態になるまで、図10(e)に示すように、停止を待つ旨のメッセージを表示する。電流波形が定常状態になると、図10(f)のように、安定した旨のメッセージに切り替える。電流波形が定常状態になったかどうかは、新しい電流波形が計測されなくなったかどうかで判断する。
A message indicating that measurement is in progress and a stop button are displayed on the measuring screen (FIG. 10 (e)) displayed by selecting the start button (step 305, FIG. 10 (e)). The user can select the stop button at any time to stop the measurement, but to prevent it from stopping when the measurement is insufficient, switch on the electrical equipment to be measured or change the operation mode. Until the changed current waveform reaches a steady state, a message to wait for the stop is displayed as shown in FIG. When the current waveform reaches a steady state, the message is switched to a stable message as shown in FIG. Whether or not the current waveform has reached a steady state is determined by whether or not a new current waveform is no longer measured.
このとき、ユーザが機器を動作させる前は、例えば待機状態など、ユーザが登録しようとしている動作モードではないため、その状態から波形が大きく変化した時点から実際の計測を開始するようにする。計測の詳しいフローについては、図4で説明する。
At this time, before the user operates the device, since it is not the operation mode that the user is trying to register, such as a standby state, the actual measurement is started from the time when the waveform greatly changes from that state. A detailed flow of measurement will be described with reference to FIG.
一定時間の計測の後、ユーザは停止ボタンを選択して計測を停止する。計測を停止すると計測結果の画面に移る(ステップ307、図10(g))。計測結果を登録する場合(ステップ308:YES)、ユーザは計測した動作モード名を入力する(ステップ309)。動作モード名の入力方法については後述する。
After the measurement for a certain time, the user selects the stop button and stops the measurement. When the measurement is stopped, the measurement result screen is displayed (step 307, FIG. 10 (g)). When registering the measurement result (step 308: YES), the user inputs the measured operation mode name (step 309). A method for inputting the operation mode name will be described later.
動作モード名の入力が終わると、登録した動作モードが正しく識別できるかどうかを確認するため、同じ動作モードで動作させるようユーザに要求するメッセージを表示する(ステップ310、図10(i))。ユーザが要求に従って機器を動作させた後、図10(k)に示すような画面で、正常に識別が行われたかどうかを確認する。識別がうまくいかなければ(ステップ311:NO)、再度登録を行う(ステップ304)。
When the operation mode name has been entered, a message requesting the user to operate in the same operation mode is displayed to confirm whether or not the registered operation mode can be correctly identified (step 310, FIG. 10 (i)). After the user operates the device according to the request, it is confirmed on the screen as shown in FIG. 10 (k) whether or not the identification has been normally performed. If the identification is not successful (step 311: NO), registration is performed again (step 304).
運用開始後に識別がうまくいかないことが分かると、どのモードの登録に失敗しているのかを調べる必要がでてきてしまうため、登録直後に登録の成否を確認することでこのような手間を軽減する。
If it turns out that the identification is not successful after the start of operation, it will be necessary to examine which mode registration has failed. Therefore, it is possible to reduce such trouble by checking the success or failure of registration immediately after registration.
識別に問題がなければ(ステップ311:YES)、登録を完了するかどうかを確認する(ステップ312、図10(l))。別の動作モードも続けて登録する場合(ステップ312:NO)、ステップ304に戻る。計測結果を登録しない場合も(ステップ308:NO)、終了するか(ステップ312:YES)、または、ステップ304に戻って再度計測を行う(ステップ312:NO)。
<電流計測と波形パターンの抽出>
図4に示すフローチャートを用いて、電流の計測と波形パターンの抽出を行い、電流量の時間変化を表す計測履歴を作成する動作の一連の流れを説明する。 If there is no problem in the identification (step 311: YES), it is confirmed whether or not the registration is completed (step 312, FIG. 10 (l)). When another operation mode is continuously registered (step 312: NO), the process returns to step 304. Even when the measurement result is not registered (step 308: NO), the measurement is ended (step 312: YES), or the process returns to step 304 and measurement is performed again (step 312: NO).
<Current measurement and waveform pattern extraction>
With reference to the flowchart shown in FIG. 4, a series of operations for measuring a current and extracting a waveform pattern and creating a measurement history representing a temporal change in the amount of current will be described.
<電流計測と波形パターンの抽出>
図4に示すフローチャートを用いて、電流の計測と波形パターンの抽出を行い、電流量の時間変化を表す計測履歴を作成する動作の一連の流れを説明する。 If there is no problem in the identification (step 311: YES), it is confirmed whether or not the registration is completed (
<Current measurement and waveform pattern extraction>
With reference to the flowchart shown in FIG. 4, a series of operations for measuring a current and extracting a waveform pattern and creating a measurement history representing a temporal change in the amount of current will be described.
まず、電力計101で電流と電圧を計測する(ステップ401、402)。電流は少なくとも交流一周期分の時間(電源の周波数が50Hzの場合、20ミリ秒)の連続した値を計測する。一度に計測する時間長は、交流一周期以上でもよいが、交流周期の整数倍の時間であることが望ましい。これは、周期の整数倍の時間で計測を行わないと正しく周波数解析を行うことができないためである。また、周波数解析結果が異なる可能性があるため、登録されている波形と計測・照合する波形とで必ず一致している必要がある。
First, current and voltage are measured by the wattmeter 101 (steps 401 and 402). The current is measured as a continuous value for at least one AC period (20 milliseconds when the power supply frequency is 50 Hz). The time length to be measured at a time may be one AC period or more, but is preferably an integral multiple of the AC period. This is because the frequency analysis cannot be performed correctly unless measurement is performed in an integral multiple of the period. In addition, since the frequency analysis result may be different, the registered waveform and the waveform to be measured and collated must always match.
ステップ401、402で計測された連続した電流量の変化である電流波形は、特徴抽出部113で周波数解析によって少数の特徴量(数列)で構成される波形パターンに変換される(ステップ403)。特徴抽出方法は、フーリエ変換によって求めたパワースペクトルに対して主成分分析を行い、第一主成分~第N主成分までを選択して特徴量とするものとして説明する。Nは2以上の数である。Nの値は特に規定しないが、フーリエ変換によって求めた周波数成分の数よりも十分小さい数で問題ない。特徴成分を少数の特徴量に絞る目的は、登録データ容量の削減と、登録済みパターンとの一致判定を行う場合の計算量削減である。従って、同様の効果が得られるのであれば、他の方法を取ってもよい。
The current waveform, which is a continuous change in the amount of current measured in steps 401 and 402, is converted into a waveform pattern composed of a small number of features (several sequences) by frequency analysis by the feature extraction unit 113 (step 403). The feature extraction method will be described on the assumption that a principal component analysis is performed on a power spectrum obtained by Fourier transform, and a feature amount is selected from the first principal component to the Nth principal component. N is a number of 2 or more. The value of N is not particularly defined, but there is no problem if the number is sufficiently smaller than the number of frequency components obtained by Fourier transform. The purpose of narrowing down the feature components to a small number of feature amounts is to reduce the amount of registration data and to reduce the amount of calculation when matching with registered patterns is performed. Therefore, other methods may be used as long as the same effect can be obtained.
波形パターンに変換された電流波形は、パターン識別部114で、これまで計測され登録されているパターンなのか、未登録のパターンなのかを識別される(ステップ404、ステップ405)。パターン識別部114は、波形パターンリスト116と特徴抽出部113が抽出した波形パターンを比較することで識別を行う。波形パターンリスト116の例を、図13(a)に示す。波形パターンリストはパターンごとにユニークに割り振られたパターンID1301、その波形パターンがどの動作モードの波形かを示す動作モードID1302、パターンを示す数値列1303とで構成される。
The current waveform converted to the waveform pattern is identified by the pattern identifying unit 114 as a pattern that has been measured and registered so far, or an unregistered pattern (steps 404 and 405). The pattern identification unit 114 performs identification by comparing the waveform pattern list 116 and the waveform pattern extracted by the feature extraction unit 113. An example of the waveform pattern list 116 is shown in FIG. The waveform pattern list includes a pattern ID 1301 uniquely assigned to each pattern, an operation mode ID 1302 indicating which operation mode the waveform pattern is, and a numerical value sequence 1303 indicating the pattern.
波形パターンリスト116に該当するパターンが存在する、つまり、登録済みのパターンであった場合、現在時刻と当該パターンのパターンIDと電力量を計測履歴118に記録する(ステップ411)。該当するパターンが存在しない場合、波形パターンリスト116に今回計測した波形パターンを新規に登録し、パターンIDを割り振る(ステップ406)。
If the corresponding pattern exists in the waveform pattern list 116, that is, if it is a registered pattern, the current time, the pattern ID of the pattern, and the electric energy are recorded in the measurement history 118 (step 411). If there is no corresponding pattern, the waveform pattern measured this time is newly registered in the waveform pattern list 116, and a pattern ID is assigned (step 406).
また、このパターンIDで計測履歴118への記録を行う(ステップ407)。計測履歴118の例を、図13(b)に示す。計測時の時刻1304、電力1305、パターンID1306とで構成される。
In addition, the pattern ID is recorded in the measurement history 118 (step 407). An example of the measurement history 118 is shown in FIG. It consists of a measurement time 1304, power 1305, and pattern ID 1306.
ステップ408~410では、計測したパターンを類似度に応じてグループ分けを行う処理で、これは、一度の計測でユーザが複数のモードを登録しようとした場合に対応するものである。
Steps 408 to 410 are processes for grouping the measured patterns according to the similarity, and this corresponds to a case where the user tries to register a plurality of modes in one measurement.
電気機器の電流波形パターンの登録方法は、基本的には一度の計測で一つの動作モードを登録することを特徴とし、一度に複数のパターンが計測されても同じ動作モードとして登録するようにしているが、明らかにパターンが大きく異なるものが計測された場合は、それをユーザに提示し、一つの動作モードとして登録するか、あるいは、複数の動作モードとして登録するかを選択させるようにする。
The method of registering the current waveform pattern of electrical equipment is basically characterized by registering one operation mode in one measurement, and registering it as the same operation mode even if multiple patterns are measured at one time. However, when a pattern with a significantly different pattern is measured, it is presented to the user and selected to be registered as one operation mode or a plurality of operation modes.
ステップ408では、直前に計測したパターンとの二乗誤差を計算し、その値が予め決めておいた閾値以下かどうかを確認する。閾値以下だった場合(ステップ408:YES)、直前の計測パターンと同じ動作モードと認識する。閾値以上だった場合(ステップ408:NO)、直前の計測パターンとは異なる動作モードと認識し、新規に動作モードを定義する。尚、パターンの類似度判定の方法は、比較するパターン同士がどれほど近いかを定量的に算出できる方法であればよく、二乗誤差以外の方法を用いてもよい。
In step 408, a square error with the pattern measured immediately before is calculated, and it is confirmed whether the value is equal to or less than a predetermined threshold value. If it is equal to or less than the threshold (step 408: YES), it is recognized as the same operation mode as the previous measurement pattern. If it is equal to or greater than the threshold value (step 408: NO), it is recognized as an operation mode different from the previous measurement pattern, and a new operation mode is defined. The pattern similarity determination method may be any method that can quantitatively calculate how close the patterns to be compared are, and a method other than the square error may be used.
図13(c)に機器・動作モード名称リストの例を示す。機器ID1307は、機器にユニークに割り振られるIDである。機器名称1308は、ユーザが登録する機器の名称である。動作モードID1309は、図13(a)の動作モードID1302と同じものである。動作モード名称1310は、ユーザが登録する動作モードの名称である。
<動作モード名の入力>
計測後に動作モード名を入力する方法について図5に示すフローチャートと図10に示す画面遷移の図で説明する。説明した機器情報登録のフローチャート図3のステップ309にあたる。 FIG. 13C shows an example of a device / operation mode name list. Thedevice ID 1307 is an ID uniquely assigned to the device. The device name 1308 is a name of a device registered by the user. The operation mode ID 1309 is the same as the operation mode ID 1302 in FIG. The operation mode name 1310 is the name of the operation mode registered by the user.
<Enter operation mode name>
A method of inputting an operation mode name after measurement will be described with reference to a flowchart shown in FIG. 5 and a screen transition diagram shown in FIG. This corresponds to step 309 in FIG.
<動作モード名の入力>
計測後に動作モード名を入力する方法について図5に示すフローチャートと図10に示す画面遷移の図で説明する。説明した機器情報登録のフローチャート図3のステップ309にあたる。 FIG. 13C shows an example of a device / operation mode name list. The
<Enter operation mode name>
A method of inputting an operation mode name after measurement will be described with reference to a flowchart shown in FIG. 5 and a screen transition diagram shown in FIG. This corresponds to step 309 in FIG.
まず、登録済みの動作モードかどうかにより処理を分岐する。動作モードが登録済みだった場合(ステップ501:YES)、その旨を伝えるメッセージを表示する(ステップ507)。ユーザがこの動作モードに対して、再び名称を設定する場合(ステップ508:YES)、動作モードを選択する(ステップ509)。名称変更を行わない場合(ステップ508:NO)、そのまま終了する。
First, the process branches depending on whether or not it is a registered operation mode. If the operation mode has been registered (step 501: YES), a message to that effect is displayed (step 507). When the user sets a name again for this operation mode (step 508: YES), the operation mode is selected (step 509). If the name is not changed (step 508: NO), the process ends.
ここで、動作モードの選択とは、画面上に表示された一つ乃至複数の動作モードから名称を設定する動作モードをユーザに選択させることである。機器情報登録処理で説明したように、ユーザが意図的に機器の動作モードを切り替えることにより一度に複数の動作モードが計測される場合もあるため、この場合、ユーザは計測結果画面から動作モードを一つずつ選択して動作モードの名称の登録を行っていく。この様子を図10(g)~(h)に示す。名称未設定の動作モード、つまり、今回の計測で初めて登録された動作モードは、図のように「モード1」、「モード2」のように仮の名称が表示される。ユーザはこれを一つずつ選択して名称登録を行っていく。
Here, the selection of the operation mode means that the user selects an operation mode for setting a name from one or more operation modes displayed on the screen. As described in the device information registration process, since the user may intentionally switch the operation mode of the device, multiple operation modes may be measured at one time. In this case, the user selects the operation mode from the measurement result screen. Select one by one and register the name of the operation mode. This is shown in FIGS. 10 (g) to 10 (h). For the operation mode with no name set, that is, the operation mode registered for the first time in the current measurement, temporary names such as “mode 1” and “mode 2” are displayed as shown in the figure. The user selects this one by one and registers the name.
選択した動作モードの名称を変更した後(ステップ510)、他の動作モードの名称も変更する場合(ステップ511:YES)、再度ユーザにモードの選択を行わせる(ステップ509)。他の動作モードの名称の変更を行わない場合は終了する(ステップ511:NO)
動作モードが未登録、あるいは、複数の動作モードがあり、その中で少なくとも一つの動作モードが未登録であった場合(ステップ501:NO)、名称を設定する動作モードをユーザに選択させる(ステップ502)。ここですでに名称登録済みの動作モードが含まれ、且つ、ユーザがこの動作モードを選択した場合(ステップ503:YES)、その動作モードの名称変更を行う(ステップ505)。まだ名称を設定していない動作モードを選択した場合(ステップ503:NO)、その動作モードの名称の設定を行う(ステップ504)。この他にも動作モードがあり、名称設定を行う場合(ステップ506:YES)、再び動作モードの選択に移る(ステップ502)。他に動作モードがない、あるいは、他の動作モードを設定しない場合(ステップ506:NO)、処理を終了する。 After changing the name of the selected operation mode (step 510), when changing the name of another operation mode (step 511: YES), the user is again made to select the mode (step 509). If the name of another operation mode is not changed, the process is terminated (step 511: NO).
When the operation mode is unregistered or there are a plurality of operation modes, and at least one of the operation modes is unregistered (step 501: NO), the user is allowed to select an operation mode for setting a name (step 502). If an operation mode whose name has already been registered is included and the user selects this operation mode (step 503: YES), the name of the operation mode is changed (step 505). When an operation mode for which a name has not yet been set is selected (step 503: NO), the name of the operation mode is set (step 504). In addition, when there is an operation mode and name setting is performed (step 506: YES), the operation mode is selected again (step 502). If there is no other operation mode or no other operation mode is set (step 506: NO), the process is terminated.
動作モードが未登録、あるいは、複数の動作モードがあり、その中で少なくとも一つの動作モードが未登録であった場合(ステップ501:NO)、名称を設定する動作モードをユーザに選択させる(ステップ502)。ここですでに名称登録済みの動作モードが含まれ、且つ、ユーザがこの動作モードを選択した場合(ステップ503:YES)、その動作モードの名称変更を行う(ステップ505)。まだ名称を設定していない動作モードを選択した場合(ステップ503:NO)、その動作モードの名称の設定を行う(ステップ504)。この他にも動作モードがあり、名称設定を行う場合(ステップ506:YES)、再び動作モードの選択に移る(ステップ502)。他に動作モードがない、あるいは、他の動作モードを設定しない場合(ステップ506:NO)、処理を終了する。 After changing the name of the selected operation mode (step 510), when changing the name of another operation mode (step 511: YES), the user is again made to select the mode (step 509). If the name of another operation mode is not changed, the process is terminated (step 511: NO).
When the operation mode is unregistered or there are a plurality of operation modes, and at least one of the operation modes is unregistered (step 501: NO), the user is allowed to select an operation mode for setting a name (step 502). If an operation mode whose name has already been registered is included and the user selects this operation mode (step 503: YES), the name of the operation mode is changed (step 505). When an operation mode for which a name has not yet been set is selected (step 503: NO), the name of the operation mode is set (step 504). In addition, when there is an operation mode and name setting is performed (step 506: YES), the operation mode is selected again (step 502). If there is no other operation mode or no other operation mode is set (step 506: NO), the process is terminated.
図3ないし図5で説明したように、本発明では、ユーザが登録しようとする特定の機器及び動作モードで動作させて電流の計測開始と計測終了を指示し、計測された電流波形について1または複数の動作モードの登録を行う。
As described with reference to FIGS. 3 to 5, in the present invention, a user starts operation and ends measurement by operating in a specific device and operation mode to be registered, and the measured current waveform is 1 or Register multiple operation modes.
従って、ユーザが計測期間中の機器及び動作モードを認識して登録を行うことができる。
Therefore, the user can recognize and register the device and operation mode during the measurement period.
また、図4で説明したように、ユーザが電流の計測をしている間に1の動作モードに対して複数の電流波形が計測されても、同じ動作モードの電流波形であることを適正に識別するため、複数の電流波形が計測された場合でも一つの動作モードとして登録することができる。
<機器識別装置の運用開始>
これまで、機器識別装置で事前に必要な機器情報登録処理について説明してきたが、ここから、実際に運用を開始する場合の動作について説明する。電気機器の情報を登録する際は、図2(b)のように登録する電気機器がつながっている系統ごとに電力計101をつなぎ換えていたが、運用開始後は、図2(a)のように主幹側に対して電力計101を接続する。 In addition, as described with reference to FIG. 4, even when a plurality of current waveforms are measured for one operation mode while the user is measuring current, the current waveforms in the same operation mode are properly determined. For identification, even when a plurality of current waveforms are measured, it can be registered as one operation mode.
<Start of operation of device identification device>
Up to now, the device information registration process required in advance by the device identification apparatus has been described. Now, the operation when the operation is actually started will be described. When registering information on electrical equipment, thewattmeter 101 was switched for each system to which the electrical equipment to be registered was connected as shown in FIG. 2 (b). Thus, the power meter 101 is connected to the main trunk side.
<機器識別装置の運用開始>
これまで、機器識別装置で事前に必要な機器情報登録処理について説明してきたが、ここから、実際に運用を開始する場合の動作について説明する。電気機器の情報を登録する際は、図2(b)のように登録する電気機器がつながっている系統ごとに電力計101をつなぎ換えていたが、運用開始後は、図2(a)のように主幹側に対して電力計101を接続する。 In addition, as described with reference to FIG. 4, even when a plurality of current waveforms are measured for one operation mode while the user is measuring current, the current waveforms in the same operation mode are properly determined. For identification, even when a plurality of current waveforms are measured, it can be registered as one operation mode.
<Start of operation of device identification device>
Up to now, the device information registration process required in advance by the device identification apparatus has been described. Now, the operation when the operation is actually started will be described. When registering information on electrical equipment, the
主幹側で計測すると個別の電流を計測することはできないが、複数の電気機器が同時に動作した場合の電流量は、キルヒホッフの法則により、各機器を別々に動作した場合の電流量の和と等しくなるため、この性質を利用して波形パターンの一致判定を行う。図12に二つの電流波形が重畳された様子を示す。図2(a)と図2(b)は、別々の機器の電流波形であり、図12(c)は、図12(a)と図12(b)の機器が同時に動作したときの電流波形である。図12(c)は、図12(a)と図12(b)の和となっていることが分かる。
Although it is not possible to measure individual currents when measuring on the trunk side, the current amount when multiple electrical devices are operated simultaneously is equal to the sum of the current amounts when each device is operated separately according to Kirchhoff's law. Therefore, the waveform pattern match determination is performed using this property. FIG. 12 shows a state where two current waveforms are superimposed. 2 (a) and 2 (b) are current waveforms of different devices, and FIG. 12 (c) is a current waveform when the devices of FIGS. 12 (a) and 12 (b) are operated simultaneously. It is. It can be seen that FIG. 12 (c) is the sum of FIG. 12 (a) and FIG. 12 (b).
電流波形の一致判定は、電流波形から抽出した特徴量である波形パターンを用いるが、電流波形とそこから抽出した波形パターンが線形の関係にあれば、波形パターンにも同様にキルヒホッフの法則が成立する。そのため、主幹側で計測した電流波形から抽出した波形パターンに対して、登録済みの波形パターンの組み合わせを作成して一致判定を行うことでどの機器のどの動作モードの組み合わせで動作しているのかを推定する。
The waveform pattern, which is the feature value extracted from the current waveform, is used to determine whether the current waveform matches. However, if the current waveform and the waveform pattern extracted from it have a linear relationship, Kirchhoff's law is established for the waveform pattern as well. To do. Therefore, by creating a combination of registered waveform patterns for the waveform pattern extracted from the current waveform measured on the trunk side and performing a match determination, it is possible to determine which device is operating in which operation mode combination. presume.
図6は、運用開始後、ユーザの要求により各機器の動作状況を表示する際のフローチャートである。運用開始後は、ユーザが停止させるまで常に計測が行われ、計測履歴が蓄積されていく。ユーザは任意のタイミングで、各機器の動作状況を確認することができる。
FIG. 6 is a flowchart for displaying the operation status of each device at the request of the user after the start of operation. After the operation is started, measurement is always performed until the user stops, and the measurement history is accumulated. The user can check the operation status of each device at an arbitrary timing.
図11(a)に運用時の各機器の動作状況の表示画面を示す。表示画面は、電力量1101、機器一覧1102、各機器の動作状況1103、時刻1104、スクロールバー1105から構成される。表示は常に更新され、また、スクロールバー805を動かすことにより過去の状況も確認することができる。機器一覧1102の機器の名称、および、動作状況1103の動作モード名はユーザが入力したものである。図11(a)の画面の表示は、図6に示すフローチャートで、ステップ610~611にあたる。
Fig. 11 (a) shows the display screen of the operating status of each device during operation. The display screen includes a power amount 1101, a device list 1102, an operation status 1103 of each device, a time 1104, and a scroll bar 1105. The display is constantly updated, and the past situation can be confirmed by moving the scroll bar 805. The names of the devices in the device list 1102 and the operation mode names of the operation status 1103 are input by the user. The screen display of FIG. 11A corresponds to steps 610 to 611 in the flowchart shown in FIG.
ここで、どの動作モードかを認識できなかった時間帯が見つかった場合(ステップ612:YES)、ユーザに状況を確認するメッセージを表示する(ステップ613、図11(b))。これは、ユーザが未登録の機器を使用したかどうかを問うもので、未登録機器を使用した場合は(ステップ614:YES)、機器情報の登録を要求するメッセージを表示する(ステップ615)。ユーザが未登録機器を使用していないとした場合、登録済みの機器の認識がうまくいっていないことになるため、登録済みの機器の情報の再登録を要求するメッセージを表示する(ステップ616)。認識できなかった時間帯は画面で確認できるため、時間帯や他の機器の動作状況を見ることで、どの機器のどの動作モードの認識に失敗しているかを推測することができる。次に計測履歴から登録に適した時間帯を求め、メッセージ表示による案内を行う(ステップ617)。登録に適した時間帯とは、その他の動作中の機器の動作モードが変化せず、電流波形が一定になっている時間帯のことである。このような状況下で登録を行うことで、その他の機器の動作が登録に影響しないようにする。この時間帯を求める処理については、図7に示すフローチャートを用いて後述する。
Here, when a time zone in which the operation mode cannot be recognized is found (step 612: YES), a message for confirming the situation is displayed to the user (step 613, FIG. 11 (b)). This asks whether the user has used an unregistered device. If an unregistered device is used (step 614: YES), a message requesting registration of device information is displayed (step 615). If the user does not use an unregistered device, the registered device has not been recognized successfully, and a message requesting re-registration of registered device information is displayed (step 616). Since the time zone that could not be recognized can be confirmed on the screen, it is possible to infer which device has failed to recognize which operation mode by looking at the time zone and the operation status of other devices. Next, a time zone suitable for registration is obtained from the measurement history, and guidance by message display is performed (step 617). The time zone suitable for registration is a time zone in which the operation mode of other operating devices does not change and the current waveform is constant. By performing registration under such circumstances, the operation of other devices is prevented from affecting the registration. The processing for obtaining this time zone will be described later using the flowchart shown in FIG.
登録に適した時間帯の案内の後、または、ステップ612で未登録動作モードがなかった場合、次に一定期間検出されていない機器がないかどうかを確認する(ステップ618)。そのような機器があった場合(ステップ618:YES)、その旨を伝えるメッセージを表示し(ステップ619)、現在使用していない機器かどうかを確認する(ステップ620)。
After the guidance of the time zone suitable for registration or if there is no unregistered operation mode in step 612, it is next checked whether there is any device that has not been detected for a certain period of time (step 618). If there is such a device (step 618: YES), a message to that effect is displayed (step 619), and it is confirmed whether the device is not currently used (step 620).
ユーザがその機器をすでに使用していない、あるいは、使用頻度が低い場合(ステップ620:YES)、その機器の情報を削除するかどうかを確認し、ユーザが削除を指示した場合(ステップ621:YES)、当該情報(機器・動作モード名称リスト中の当該機器気の情報、および、関連する波形パターンリストのパターン)を削除して終了する(ステップ622)。登録されている機器情報が多いほど、パターン識別時に一致判定を行う回数が多くなり処理時間の増加に繋がるため、不要な情報を削除することで処理時間を短縮させる。
When the user has not used the device or the frequency of use is low (step 620: YES), it is confirmed whether or not the information on the device is to be deleted, and the user has instructed the deletion (step 621: YES) ), The information (information about the device in the device / operation mode name list and the pattern of the related waveform pattern list) is deleted, and the process ends (step 622). The more device information that is registered, the greater the number of times that matching is determined during pattern identification, leading to an increase in processing time. Therefore, the processing time is shortened by deleting unnecessary information.
以上のように、ユーザが動作状況を表示させる度に計測履歴を参照し、状況により未登録の機器の有無、および、すでに使用していない機器の有無をユーザに問い合わせることで、ユーザの電気機器の使用実態に合わせて機器情報を更新していく。
<運用開始後の機器情報登録>
運用開始後に機器情報を登録する際は、一時的に機器識別装置100を停止させ、電力計101を図2(b)のように分電盤内の分岐で登録する機器がつながっている系統に接続して計測を行う。このとき、同じ系統に別の機器が接続されている場合、計測時に限りその機器を動作させないようにする。しかし、冷蔵庫のように常に通電が必要な機器がつながっており、停止が困難な場合も考えられ、また、機器識別装置100自体を止めることは常に動作している機器の性質上好ましくない。 As described above, every time the user displays the operation status, the user can refer to the measurement history, and inquire the user about the presence of an unregistered device and the device that is not already in use. Device information will be updated according to the actual usage of the device.
<Device information registration after operation start>
When registering the device information after the operation is started, thedevice identification device 100 is temporarily stopped, and the power meter 101 is connected to the system connected to the device to be registered at the branch in the distribution board as shown in FIG. Connect and measure. At this time, when another device is connected to the same system, the device is not operated only during measurement. However, there are cases where devices that always need to be energized, such as refrigerators, are connected and difficult to stop, and it is not preferable to stop the device identification device 100 itself due to the nature of the devices that are always operating.
<運用開始後の機器情報登録>
運用開始後に機器情報を登録する際は、一時的に機器識別装置100を停止させ、電力計101を図2(b)のように分電盤内の分岐で登録する機器がつながっている系統に接続して計測を行う。このとき、同じ系統に別の機器が接続されている場合、計測時に限りその機器を動作させないようにする。しかし、冷蔵庫のように常に通電が必要な機器がつながっており、停止が困難な場合も考えられ、また、機器識別装置100自体を止めることは常に動作している機器の性質上好ましくない。 As described above, every time the user displays the operation status, the user can refer to the measurement history, and inquire the user about the presence of an unregistered device and the device that is not already in use. Device information will be updated according to the actual usage of the device.
<Device information registration after operation start>
When registering the device information after the operation is started, the
そこで、登録する機器を動作させて電流波形を計測する前、つまり、登録する機器を動作させない状態で電流波形の計測を行う。このとき計測される電流波形は、その時点で動作している機器の波形である。登録する機器の動作を開始した後は、この電流波形と登録する機器の電流波形の和を取った電流波形が計測されるはずであるので、その電流波形から先に計測した電流波形を差し引くことで、登録する機器の電流波形を求めることができる。
Therefore, the current waveform is measured before the registered device is operated and the current waveform is measured, that is, in a state where the registered device is not operated. The current waveform measured at this time is the waveform of the device operating at that time. After starting the operation of the device to be registered, the current waveform that is the sum of this current waveform and the current waveform of the device to be registered should be measured, so subtract the previously measured current waveform from the current waveform. Thus, the current waveform of the device to be registered can be obtained.
しかし、登録する機器の電流波形を計測中にその他の機器の動作モードが変わり電流波形が変わってしまうと、登録する機器の波形を正しく求めることができなくなってしまう。つまり、他の機器が同時に動作している状況で登録する機器の電流波形を求めるには、他の機器が同じ動作モードで動作し続けている必要がある。
However, if the operation mode of other devices changes and the current waveform changes while measuring the current waveform of the device to be registered, the waveform of the device to be registered cannot be obtained correctly. That is, in order to obtain the current waveform of a device to be registered in a situation where other devices are operating simultaneously, it is necessary that the other devices continue to operate in the same operation mode.
そこで、計測履歴から同じ機器が同じ動作モードで一定時間以上動作している箇所を探し出す。具体的には、各機器の動作モード、つまり、電流波形が変化せず、且つ、消費電力量が変わらない状態が一定時間以上続く時間帯を探し出す。図11(a)に示す機器の動作の推移を見ると、5時~6時の間はエアコンが「弱」で、一定の電力で動作していることが分かる。このような箇所では前述の方法により、登録する機器の電流波形の計測が可能と言える。
Therefore, the part where the same device has been operating in the same operation mode for a certain time or more is searched from the measurement history. Specifically, the operation mode of each device, that is, a time zone in which the current waveform does not change and the power consumption does not change is searched for for a predetermined time or longer. Looking at the transition of the operation of the device shown in FIG. 11 (a), it can be seen that the air conditioner is “weak” between 5 and 6 o'clock and is operating at a constant power. In such a place, it can be said that the current waveform of the device to be registered can be measured by the method described above.
図7に示すフローチャートを用いて、以上の未登録機器を発見した際の動作について説明する。未登録機器を発見した際は、その機器の電流計測ができる時間帯を探すため、まず、これまでの計測履歴を参照し各機器の動作状況を調べる(ステップ701)。
The operation when the above unregistered device is discovered will be described using the flowchart shown in FIG. When an unregistered device is found, in order to search for a time zone in which the current of the device can be measured, first, the operation status of each device is examined with reference to the past measurement history (step 701).
ここで、一定時間以上、動作している機器、および、動作モードが一緒で、且つ、消費電力が一定の時間があるかどうかを計測履歴から検索する(ステップ702)。このとき履歴を参照する目的は、未来も同じように機器が動作すると思われる時間帯を探すことであるため、検索を行う範囲は1日ではなく、過去1週間程度の計測履歴を参照して、平均を取るようにするとよい。該当する時間帯があった場合は、その時間帯を登録に適した時間帯として案内するメッセージを表示する(ステップ709)。
Here, it is searched from the measurement history whether there is a device that has been operating for a certain time or more and the operation mode is the same and the power consumption is constant (step 702). Since the purpose of referring to the history at this time is to search for a time zone in which the device is expected to operate in the same way in the future, the search range is not limited to one day, but refers to the measurement history of the past one week or so. , Take an average. If there is a corresponding time zone, a message for guiding the time zone as a time zone suitable for registration is displayed (step 709).
該当する時間帯が見つからなかった場合、ユーザに対し一定期間停止しても問題ない機器がないかどうかを確認する。ユーザに一つ乃至複数の機器を停止してもらうことで、登録に適した環境を作る。これはユーザに対し、例えば、機器リストを提示して任意の機器を指定してもらうようにする(ステップ704)。任意の機器が指定されたら、指定された機器の情報を計測履歴から除いた上で、一定時間以上、動作している機器、および、動作モードが一緒で、且つ、消費電力が一定の時間帯があるかどうかを検索する(ステップ705)。
If the corresponding time zone is not found, check with the user if there is no device that can be stopped for a certain period of time. An environment suitable for registration is created by having the user stop one or more devices. For example, the device list is presented to the user and an arbitrary device is designated (step 704). When an arbitrary device is specified, the information of the specified device is removed from the measurement history, and the device that has been operating for a certain period of time and the operation mode are the same and the power consumption is constant. It is searched whether there is any (step 705).
該当する時間帯があった場合は、その時間帯を登録に適した時間帯として案内するメッセージを表示する(ステップ706:YES)。該当する時間帯が見つからなかった場合(ステップ706:NO)、ユーザに対し他にも停止しても問題ない機器がないかどうかを確認する(ステップ707)。停止可能な機器がある場合、ステップ705に戻り、その機器を指定させる。
If there is a corresponding time zone, a message for guiding the time zone as a time zone suitable for registration is displayed (step 706: YES). If the corresponding time zone is not found (step 706: NO), the user is confirmed whether there is any other device that can be stopped without any problem (step 707). If there is a device that can be stopped, the process returns to step 705 to designate the device.
停止可能な機器がない場合(ステップ704、707:NO)、機器識別装置100を一旦停止させ、電力計101を登録する電気機器が接続されている分電盤の分岐に接続して計測を行うよう案内するメッセージを表示する。
If there is no device that can be stopped (steps 704 and 707: NO), the device identification device 100 is temporarily stopped, and the power meter 101 is connected to the branch of the distribution board to which the electric device to be registered is connected to perform measurement. A message to guide you is displayed.
実際に他の機器が動作している状態で新しく登録を行う処理のフローチャートを図8に示す。図3で説明した運用前の登録処理との違いは、登録する機器の計測の前にその時点で電流波形を計測する点(ステップ804)と、登録する機器の計測結果から事前に計測した電流波形分を差し引いて特徴抽出を行う点(ステップ806)である。ステップ806で計測した電流波形から、事前に計測した電流波形分を差し引くことで、登録する機器の電流波形を求め、この電流波形から特徴抽出(波形パターンの算出)と登録を行う。
Fig. 8 shows a flowchart of the process for newly registering while other devices are actually operating. The difference from the pre-operation registration process described in FIG. 3 is that the current waveform is measured at that time before measurement of the registered device (step 804) and the current measured in advance from the measurement result of the registered device. A feature extraction is performed by subtracting the waveform (step 806). The current waveform of the device to be registered is obtained by subtracting the current waveform portion measured in advance from the current waveform measured in step 806, and feature extraction (calculation of waveform pattern) and registration are performed from this current waveform.
以上説明した実施例1によれば、機器識別装置100に電気機器002の動作モードごとの波形パターンを登録するとき、電気機器002の動作モードを一つずつ登録させ、また、その際、登録に伴う電流波形の計測処理の開始と終了のタイミングを指示するメッセージを表示することで、ユーザにとって分かりやすい方法で電気機器の登録作業を実行させることができる。また、機器識別装置と機器識別装置に登録した電気機器を極力止めることなく、新しい電気機器の情報を機器識別装置に登録することができ、ユーザにとって使い勝手のよい装置を提供できる。
According to the first embodiment described above, when the waveform pattern for each operation mode of the electric device 002 is registered in the device identification apparatus 100, the operation mode of the electric device 002 is registered one by one. By displaying a message instructing the start and end timing of the accompanying current waveform measurement process, it is possible to execute the registration operation of the electric device in a manner that is easy for the user to understand. Further, it is possible to register information on a new electric device in the device identification device without stopping the device identification device and the electric device registered in the device identification device as much as possible, and provide a user-friendly device.
本実施例では、ネットワークを介して接続されたデータサーバ上にパターンや計測履歴を保存する機器識別装置の例を説明する。
In this embodiment, an example of a device identification apparatus that stores patterns and measurement histories on a data server connected via a network will be described.
本発明の第二の実施形態に係る機器識別装置の接続図を図14に示す。第二の実施形態は、機器識別装置1400が、ネットワーク1450によりデータサーバ1410と接続された形態である。ネットワーク1450は、インターネットなどの公共ネットワークである。ただし、データサーバ1400とユーザの機器識別装置100を接続するLANなどのプライベートネットワークでもよい。
FIG. 14 shows a connection diagram of the device identification apparatus according to the second embodiment of the present invention. In the second embodiment, the device identification apparatus 1400 is connected to the data server 1410 via the network 1450. The network 1450 is a public network such as the Internet. However, a private network such as a LAN connecting the data server 1400 and the user device identification apparatus 100 may be used.
データサーバ1410は、CPU1411、メモリ1412、補助記憶インターフェース1413、ネットワークインターフェース1414がバスで結合された形態である。補助記憶インターフェース1413は補助記憶装置1418とその他の部分を接続する役割を果たす。補助記憶装置1418は、波形パターンリスト1415、機器・動作モード名称リスト1416、計測履歴1417を保持する。
The data server 1410 has a form in which a CPU 1411, a memory 1412, an auxiliary storage interface 1413, and a network interface 1414 are coupled by a bus. The auxiliary storage interface 1413 serves to connect the auxiliary storage device 1418 and other parts. The auxiliary storage device 1418 holds a waveform pattern list 1415, a device / operation mode name list 1416, and a measurement history 1417.
第二の実施形態の機器識別装置1400は、ネットワークインターフェース1404がバスに結合されている点と、波形パターンリスト、機器・動作モード名称リスト、計測履歴を補助記憶装置109内に持たない点以外は、第一の実施形態の機器識別装置100と同様の構成である。その他の構成は、既に説明した図1に示された同一の符号を付された構成と、同一の機能を有するので、それらの説明は省略する。
The device identification apparatus 1400 according to the second embodiment has the exception that the network interface 1404 is coupled to the bus and that the waveform pattern list, the device / operation mode name list, and the measurement history are not stored in the auxiliary storage device 109. The configuration is the same as that of the device identification apparatus 100 of the first embodiment. Other configurations have the same functions as the configurations denoted by the same reference numerals shown in FIG. 1 and have not been described.
ネットワークインターフェース104は、ネットワーク1450を介してデータサーバ1410に接続し、データサーバ1410に対し、波形パターンリスト1415、機器・動作モード名称リスト1416、計測履歴1417の登録・削除・更新を行う。
The network interface 104 is connected to the data server 1410 via the network 1450, and registers / deletes / updates the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 to the data server 1410.
第二の実施形態では、データサーバ1410上に波形パターンリスト1415、機器・動作モード名称リスト1416、計測履歴1417を保存することにより、機器識別装置1400の補助記憶装置109の容量が少なくて済む利点がある。また、補助記憶装置109を書き換える必要がないため、補助記憶装置109を安価なROM(Read Only Memory)にすることができ、装置の安価に作成することができる。また、データサーバ1410上では、機器識別装置1400の補助記憶装置109より大きなデータ格納領域が確保できるため、より長期間の計測履歴を保存することができる。
In the second embodiment, the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 are stored on the data server 1410, so that the capacity of the auxiliary storage device 109 of the device identification device 1400 can be reduced. There is. Further, since there is no need to rewrite the auxiliary storage device 109, the auxiliary storage device 109 can be made into an inexpensive ROM (Read Only Memory), and the device can be produced at low cost. Further, since a larger data storage area can be secured on the data server 1410 than the auxiliary storage device 109 of the device identification device 1400, a longer-term measurement history can be stored.
尚、データサーバ1410への波形パターンリスト1415、機器・動作モード名称リスト1416、計測履歴1417の保存、および、読み出しにかかる時間を考慮し、アクセス頻度が高いデータを機器識別装置1400に保存するようにしてもよい。
In consideration of the time taken to store and read the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 to the data server 1410, data with high access frequency is stored in the device identification apparatus 1400. It may be.
以上説明した実施例2によれば、機器識別装置1400の補助記憶装置109を安価なもので実現でき、且つ、より長期間の計測履歴を保存できるようになるため、機器識別装置をより使い勝手の良いものにしながらコストを抑えることができる。
According to the second embodiment described above, the auxiliary storage device 109 of the device identification device 1400 can be realized at a low cost, and a longer-term measurement history can be stored. Cost can be reduced while making it good.
本実施例では、ネットワークを介して接続された操作・表示端末で操作・表示を行う機器識別装置の例について説明する。
In this embodiment, an example of a device identification apparatus that performs operation / display using an operation / display terminal connected via a network will be described.
本発明の第三の実施形態に係る機器識別装置の接続図を図15に示す。第三の実施形態は、機器識別装置1500が、ネットワーク1450により操作・表示端末1510と接続された形態である。ネットワーク1450は、操作・表示端末1510とユーザの機器識別装置1500を接続するLANなどのプライベートネットワークである。ただし、インターネットなどの公共ネットワークでもよい。
FIG. 15 shows a connection diagram of the device identification apparatus according to the third embodiment of the present invention. In the third embodiment, the device identification apparatus 1500 is connected to the operation / display terminal 1510 via the network 1450. The network 1450 is a private network such as a LAN connecting the operation / display terminal 1510 and the user device identification apparatus 1500. However, it may be a public network such as the Internet.
操作・表示端末1510は、CPU1511、メモリ1512、表示装置1513、指示入力部1514、I/Oインターフェース1515、ネットワークインターフェース1516がバスで結合された形態である。
The operation / display terminal 1510 has a CPU 1511, a memory 1512, a display device 1513, an instruction input unit 1514, an I / O interface 1515, and a network interface 1516 coupled by a bus.
第一の実施形態との違いは、表示装置、および、指示入力部を持たず、ネットワーク1450を介して接続された操作・表示端末1510によって、操作、および、表示が行われる点である。その他の構成は、既に説明した図1に示された同一の符号を付された構成と、同一の機能を有するので、それらの説明は省略する。
The difference from the first embodiment is that operation and display are performed by an operation / display terminal 1510 connected via a network 1450 without a display device and an instruction input unit. Other configurations have the same functions as the configurations denoted by the same reference numerals shown in FIG. 1 and have not been described.
操作・表示端末1510は、前述の構成を備えていればよく、専用端末でなくても、パソコン、スマートフォン、ネットワーク機能を備えるテレビでもよい。また、図では、操作・表示端末1510は一つしか書かれていないが、複数の端末があってもよい。
The operation / display terminal 1510 only needs to have the above-described configuration, and may not be a dedicated terminal, but may be a personal computer, a smartphone, or a television having a network function. In the figure, only one operation / display terminal 1510 is written, but there may be a plurality of terminals.
操作・表示を行う部分を機器識別装置1500から分離することで、操作・表示端末1510がネットワーク1450を介して機器識別装置1500と通信が可能である限り、ユーザはどこにいても電気機器の動作状況を確認することができ利便性が向上する。
By separating the operation / display portion from the device identification device 1500, as long as the operation / display terminal 1510 can communicate with the device identification device 1500 via the network 1450, the operation status of the electric device is no matter where the user is. The convenience can be improved.
また、機器識別装置1500に、表示装置102、指示入力部103、I/Oインターフェース104が不要になるため、機器識別装置1500を安価に構成することができる。
Further, since the display device 102, the instruction input unit 103, and the I / O interface 104 are not required for the device identification device 1500, the device identification device 1500 can be configured at low cost.
以上説明した実施例3によれば、ユーザが機器識別装置1500を操作したり、計測した電気機器002の動作状況を確認する際に、機器識別装置1500の設置場所に移動する必要がなく、操作・表示端末があればどこからでも機器識別装置1500の操作、および、計測結果を参照することができるため、ユーザにとって使い勝手のよい装置を提供できる。
According to the third embodiment described above, when the user operates the device identification device 1500 or confirms the measured operation status of the electrical device 002, it is not necessary to move to the place where the device identification device 1500 is installed. Since the operation of the device identification device 1500 and the measurement result can be referred from anywhere as long as there is a display terminal, a user-friendly device can be provided.
本実施例は、第二の実施形態と第三の実施形態を組み合わせた形態である
本発明の第四の実施形態に係る機器識別装置の接続図を図16に示す。第四の実施形態は、機器識別装置1500が、ネットワーク1450により操作・表示端末1510、および、データサーバ1410と接続される。構成要素の詳細については、既に説明した図1、図14、および、図15に示された同一の符号を付された構成と、同一の機能を有するので、それらの説明は省略する。 The present embodiment is a combination of the second embodiment and the third embodiment. FIG. 16 shows a connection diagram of the device identification apparatus according to the fourth embodiment of the present invention. In the fourth embodiment, thedevice identification apparatus 1500 is connected to the operation / display terminal 1510 and the data server 1410 via the network 1450. The details of the constituent elements have the same functions as the configurations denoted by the same reference numerals shown in FIGS. 1, 14, and 15 and have not been described.
本発明の第四の実施形態に係る機器識別装置の接続図を図16に示す。第四の実施形態は、機器識別装置1500が、ネットワーク1450により操作・表示端末1510、および、データサーバ1410と接続される。構成要素の詳細については、既に説明した図1、図14、および、図15に示された同一の符号を付された構成と、同一の機能を有するので、それらの説明は省略する。 The present embodiment is a combination of the second embodiment and the third embodiment. FIG. 16 shows a connection diagram of the device identification apparatus according to the fourth embodiment of the present invention. In the fourth embodiment, the
機器識別装置1500と操作・表示端末1510、データサーバ1410は、同じネットワーク1450に接続されているが、操作・表示端末1510、データサーバ1410が同じネットワークに接続されている必要はなく、それぞれが、機器識別装置1500と接続できればよい。
The device identification device 1500, the operation / display terminal 1510, and the data server 1410 are connected to the same network 1450. However, the operation / display terminal 1510 and the data server 1410 do not need to be connected to the same network. What is necessary is just to be able to connect with the apparatus identification device 1500.
第二の実施形態と第三の実施形態の双方の利点を備え、補助記憶装置109を安価なROM(Read Only Memory)にすることができる点と、表示装置102、指示入力部103、I/Oインターフェース104が不要になる点で、機器識別装置1500を安価に構成することができる。また、操作・表示端末1510がネットワーク1450を介して機器識別装置1500と通信が可能である限り、ユーザはどこにいても電気機器の動作状況を確認することができ利便性が向上する。
The advantages of both the second embodiment and the third embodiment are provided, and the auxiliary storage device 109 can be an inexpensive ROM (Read Only Memory), the display device 102, the instruction input unit 103, the I / O The device identification apparatus 1500 can be configured at a low cost in that the O interface 104 is unnecessary. In addition, as long as the operation / display terminal 1510 can communicate with the device identification apparatus 1500 via the network 1450, the user can check the operation status of the electric device from anywhere and the convenience is improved.
尚、データサーバ1410への波形パターンリスト1415、機器・動作モード名称リスト1416、計測履歴1417の保存、および、読み出しにかかる時間を考慮し、アクセス頻度が高いデータを機器識別装置1500に保存するようにしてもよい。
In consideration of the time taken to store and read the waveform pattern list 1415, the device / operation mode name list 1416, and the measurement history 1417 to the data server 1410, data having a high access frequency is stored in the device identification apparatus 1500. It may be.
以上説明した実施例4によれば、機器識別装置1500を安価に実現し、且つ、機器識別装置1500の設置場所に移動する必要がなく、操作・表示端末があればどこからでも機器識別装置1500の操作、および、計測結果を参照することができるため、ユーザにとって使い勝手のよい装置を提供できる。
According to the fourth embodiment described above, the device identification device 1500 can be realized at low cost, and it is not necessary to move to the place where the device identification device 1500 is installed. If there is an operation / display terminal, the device identification device 1500 can be operated from anywhere. Since operations and measurement results can be referred to, a user-friendly device can be provided.
なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
In addition, this invention is not limited to the above-mentioned Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
また、上記の各構成、機能、処理部、処理ステップ等は、それらの一部又は全部を、例えば集積回路で設計する等によりハードウェアで実現してもよい。
In addition, each of the above-described configurations, functions, processing units, processing steps, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
また、制御線や情報線は説明上必要と考えられるものを示しており、製品上必ずしも全ての制御線や情報線を示しているとは限らない。実際には殆ど全ての構成が相互に接続されていると考えてもよい。
Also, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.
001 交流電源
002 電気機器
100 機器識別装置
101 電力計
102 表示装置
103 指示入力部
104 I/Oインターフェース
105 CPU
106 メモリ
107 タイマー
108 補助記憶インターフェース
109 補助記憶装置
110 制御プログラム
111 UI制御部
112 計測制御部
113 特徴抽出部
114 パターン識別部
115 データ登録参照部
116 波形パターンリスト
117 機器・動作モード名称リスト
118 計測履歴
1410 データサーバ
1411 CPU
1412 メモリ
1413 補助記憶インターフェース
1414 ネットワークインターフェース
1415 波形パターンリスト
1416 機器・動作モード名称リスト
1417 計測履歴
1500 操作・表示端末
1511 CPU
1512 メモリ
1513 表示装置
1514 指示入力部
1515 I/Oインターフェース
1516 ネットワークインターフェース 001AC power source 002 Electric device 100 Device identification device 101 Wattmeter 102 Display device 103 Instruction input unit 104 I / O interface 105 CPU
106Memory 107 Timer 108 Auxiliary Storage Interface 109 Auxiliary Storage Device 110 Control Program 111 UI Control Unit 112 Measurement Control Unit 113 Feature Extraction Unit 114 Pattern Identification Unit 115 Data Registration Reference Unit 116 Waveform Pattern List 117 Device / Operation Mode Name List 118 Measurement History 1410 Data server 1411 CPU
1412Memory 1413 Auxiliary storage interface 1414 Network interface 1415 Waveform pattern list 1416 Device / operation mode name list 1417 Measurement history 1500 Operation / display terminal 1511 CPU
1512Memory 1513 Display device 1514 Instruction input unit 1515 I / O interface 1516 Network interface
002 電気機器
100 機器識別装置
101 電力計
102 表示装置
103 指示入力部
104 I/Oインターフェース
105 CPU
106 メモリ
107 タイマー
108 補助記憶インターフェース
109 補助記憶装置
110 制御プログラム
111 UI制御部
112 計測制御部
113 特徴抽出部
114 パターン識別部
115 データ登録参照部
116 波形パターンリスト
117 機器・動作モード名称リスト
118 計測履歴
1410 データサーバ
1411 CPU
1412 メモリ
1413 補助記憶インターフェース
1414 ネットワークインターフェース
1415 波形パターンリスト
1416 機器・動作モード名称リスト
1417 計測履歴
1500 操作・表示端末
1511 CPU
1512 メモリ
1513 表示装置
1514 指示入力部
1515 I/Oインターフェース
1516 ネットワークインターフェース 001
106
1412
1512
Claims (6)
- 1または複数の電力を消費する電気機器の電流波形を計測する電力計に接続され、電気機器の動作モードを前記電流波形から識別する機器識別装置において、
前記電力計に対して、前記電気機器の電流波形の計測の開始及び停止を制御する計測制御部と、
開始から停止までの計測期間中に計測された電流波形を入力する計測入力部と、
入力された電流波形から、1または複数の波形パターンを抽出する波形パターン抽出部と、
抽出された1または複数の波形パターンについて、動作モード別に波形パターンを分類するパターン識別部と、
前記分類された波形パターンに対して動作モードを登録する登録部と、
計測制御部に対して電流波形の計測の開始及び停止を指示し、前記登録部に対して波形パターンの動作モードの登録を指示する指示部と、
を備えたことを特徴とする機器識別装置。 In a device identification device that is connected to a wattmeter that measures a current waveform of an electrical device that consumes one or more powers, and that identifies an operation mode of the electrical device from the current waveform,
For the power meter, a measurement control unit that controls the start and stop of the measurement of the current waveform of the electrical device, and
A measurement input unit for inputting a current waveform measured during a measurement period from start to stop;
A waveform pattern extraction unit that extracts one or a plurality of waveform patterns from the input current waveform;
A pattern identifying unit for classifying the waveform pattern by operation mode with respect to the extracted one or more waveform patterns;
A registration unit for registering an operation mode for the classified waveform pattern;
Instructing the measurement control unit to start and stop the measurement of the current waveform, and instructing the registration unit to register the operation mode of the waveform pattern;
A device identification device comprising: - 前記計測期間中に1つの電気機器を1つの動作モードで動作させる場合に、
抽出された1または複数の波形パターンについて1つの動作モードが登録されることを特徴とする請求項1に記載の機器識別装置。 When operating one electrical device in one operation mode during the measurement period,
The apparatus identification device according to claim 1, wherein one operation mode is registered for the extracted one or a plurality of waveform patterns. - 前記計測期間中に1つの電気機器を複数の動作モードで動作させる場合に、
前記パターン識別部は、抽出された複数の波形パターンを、複数の波形パターンの類似度により、複数の動作モード別に分類し、
分類された複数の波形パターンについて、複数の動作モードが登録されることを特徴とする請求項1に記載の機器識別装置。 When operating one electrical device in a plurality of operation modes during the measurement period,
The pattern identifying unit classifies the plurality of extracted waveform patterns according to a plurality of operation modes according to the similarity of the plurality of waveform patterns,
The apparatus identification device according to claim 1, wherein a plurality of operation modes are registered for the plurality of classified waveform patterns. - 1または複数の電力を消費する電気機器の電流波形を計測する電力計に接続され、電気機器の動作モードを前記電流波形から識別する機器識別装置の登録方法であって、
前記電力計に対して、前記電気機器の電流波形の計測の開始及び停止を指示するステップと、
開始から停止までの計測期間中に計測された電流波形を入力するステップと、
入力された電流波形から、1または複数の波形パターンを抽出するステップと、
抽出された1または複数の波形パターンについて、動作モード別に波形パターンを分類するステップと、
前記分類された波形パターンの動作モードの登録を指示するステップと、
前記分類された波形パターンに対して動作モードを登録するステップと、
を有することを特徴とする機器識別装置の登録方法。 A method for registering a device identification device that is connected to a power meter that measures a current waveform of an electrical device that consumes one or more powers, and that identifies an operation mode of the electrical device from the current waveform,
Instructing the power meter to start and stop the measurement of the current waveform of the electrical device;
A step of inputting a current waveform measured during a measurement period from start to stop;
Extracting one or more waveform patterns from the input current waveform;
Classifying the waveform pattern by operation mode with respect to the extracted one or more waveform patterns;
Directing registration of operation modes of the classified waveform patterns;
Registering an operation mode for the classified waveform pattern;
A method of registering a device identification apparatus, comprising: - 前記計測期間中に1つの電気機器を1つの動作モードで動作させる場合に、
抽出された1または複数の波形パターンについて1つの動作モードが登録されることを特徴とする請求項4に記載の機器識別装置の登録方法。 When operating one electrical device in one operation mode during the measurement period,
5. The device identification apparatus registration method according to claim 4, wherein one operation mode is registered for one or a plurality of extracted waveform patterns. - 前記計測期間中に1つの電気機器を複数の動作モードで動作させる場合に、
前記波形パターンを分類するステップは、抽出された複数の波形パターンを、複数の波形パターンの類似度により、複数の動作モード別に分類し、
分類された複数の波形パターンについて、複数の動作モードが登録されることを特徴とする請求項4に記載の機器識別装置の登録方法。 When operating one electrical device in a plurality of operation modes during the measurement period,
The step of classifying the waveform patterns classifies the plurality of extracted waveform patterns according to a plurality of operation modes according to the similarity of the plurality of waveform patterns,
5. The device identification apparatus registration method according to claim 4, wherein a plurality of operation modes are registered for the plurality of classified waveform patterns.
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