JP4752708B2 - Power monitoring system - Google Patents

Description

  The present invention relates to a power monitoring system.

  Conventionally, the amount of commercial power consumed in each home or the like can be confirmed with an invoice sent from the power supply company or with web content created by the power supply company.

On the other hand, there is a system in which the main power amount can be measured in a home distribution board, and the measurement result can be monitored on a web screen. Further, in this system, the power consumption amount of other homes can be compared. (For example, refer to Patent Document 1).
Japanese Patent No. 3551302

  Usually, in a home, a main electric circuit is branched into a plurality of branch electric circuits via a branch breaker in a distribution board, and various electric devices are connected to each branch electric circuit. For example, one branch electric circuit is allocated to a plurality of electric devices (a plurality of lighting fixtures) installed in one room, and recently, one electric device (air conditioner (air conditioner), floor heating appliance, IH device, etc.) ) Is assigned one branch circuit.

  However, in the system of Patent Document 1, the power consumption in each home is monitored in a lump, but the power consumption for each branch circuit is not grasped, and the power consumption for each branch circuit. Based on the above, it was not possible to monitor the power on / off state of each electrical device. For example, an unnecessary power source of an electrical device is turned off before going out or before going to bed, but it has not been possible to easily confirm whether there is an electrical device that has been forgotten to be turned off when going out or at bedtime.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide a power monitoring system capable of confirming the presence or absence of an electrical device whose power is forgotten to be turned off based on the amount of electricity used for each branch electric circuit in the house. It is in.

  The invention according to claim 1 is supplied via the main breaker, a plurality of branch breakers respectively provided in the branch circuit that branches from the secondary side of the main breaker and supplies electric power to the electrical equipment, and the branch breakers. Control means comprising measuring means for measuring the amount of electricity used for each branch breaker, control means for generating information based on the amount of electricity used for each branch breaker, and a terminal device for transferring information between the control means, Is a steady data setting means for setting the amount of electricity used via the branch breaker when the power of the electrical equipment connected to each branch breaker is turned off to the amount of steady electricity used for each branch breaker; Power supply state determination means for determining the on / off state of the power supply of the electrical equipment connected to the branch breaker based on the difference between the amount of electricity used for each branch breaker and the amount of steady electricity used. Device acquires the determination result of the power state determination means from the control means, characterized in that it has a notification means corresponding to the name corresponding to each branch breakers notifying the determination result.

  According to the present invention, it is possible to determine the on / off state of the power supply of the electrical equipment for each branch circuit based on the amount of electricity used for each branch circuit in the home, so that The presence or absence of the device can be confirmed, and the user is conscious of energy saving, leading to the achievement of energy saving goals.

  According to a second aspect of the present invention, in the first aspect, the terminal device reports a name corresponding to a branch electric circuit to which an electric device determined to be in an on state is connected.

  According to the present invention, it is possible to identify an electrical device that has forgotten to be turned off.

  According to a third aspect of the present invention, in the first or second aspect, the steady data setting means sets the minimum value to the steady electric usage each time the electric usage for each branch breaker updates the minimum value. Features.

  According to this invention, it is possible to appropriately set the steady electricity usage.

  As described above, according to the present invention, there is an effect that it is possible to confirm the presence / absence of an electric device that has forgotten to be turned off based on the amount of electricity used for each branch electric circuit in the house.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
As shown in FIG. 2, the power monitoring system of the present embodiment includes an integrated management panel 1 installed in the house, an electric line Lp for supplying commercial power, and an information transmission line Li (enhanced category 5 or category 6 LAN cable). ) To the integrated management panel 1, and the integrated management panel 1 supplies a plurality of lighting devices, air conditioners (air conditioners), floor heaters, IH devices, etc. Electrical equipment Xmn (m = 1, 2,..., N = 1, 2,...) And a plurality (two in the illustrated example) of terminal devices (personal) connected to the integrated management panel 1 via the LAN cable Li A computer PC and a terminal device having a web browser function such as a display control device CV), and the integrated management panel 1 and the terminal device are general-purpose communication protocols (TCP / IP, UDP, HTTP, etc.) Constitute a home network using. This home network is a local area network (LAN) compliant with the 100BASE-TX (IEEE 802.3u) standard, and in the integrated management panel 1, an integrated device TM, which will be described later, corresponds to a layer 2 switch or a layer 3 switch, Terminal devices (personal computer PC and display control device CV) corresponding to network terminals are connected by star wiring. Further, the integrated device TM has an Internet connection function corresponding to the type of line for connecting to the Internet (telephone line, CATV line, optical fiber line, etc.), and the home network is connected to the Internet as an external network. The The display control device CV may be a net television having a web browser function.

  A center device (center server) SV installed at a remote place away from the house is connected to the home network through the Internet. As will be described later, a laptop personal computer, a mobile phone, a PDA that can be connected to the Internet. By performing data communication via the Internet between the portable terminal device PT having a web browser function such as (Personal Digital Assistance) and the center device SV, for example, from the outside using the portable terminal PT Control and monitoring of electrical equipment can be performed. The center device SV is composed of a general-purpose computer device having a network function, and is addressed to a message addressed to the integrated management panel 1 transmitted from the portable terminal PT through the Internet or to a terminal device that does not belong to the home network from the integrated management panel 1. It has a function to relay a message to be transmitted. However, since the portable terminal PT and the center device SV having the Internet connection function as described above are well known in the art, the detailed illustration and description thereof are omitted.

  As shown in FIG. 1, the integrated management panel 1 includes a main breaker Bs that receives commercial power supplied to the house from the outside on the primary side, and a plurality of electric circuits that are inserted from the secondary side of the main breaker Bs. The branch breaker Bmn, the energy management unit 2, the integrated device TM, and the electric equipment controller C1 are provided. And each electric circuit Lpmn branched via the branch breaker Bmn is led out of the integrated management panel 1 and connected to each electric device Xmn to supply operation power.

  The energy management unit 2 is supplied via the trunk breaker Bs by converting the measured value of the trunk current into the electric energy by the trunk current detection part CTs that periodically measures the trunk current value flowing through the trunk breaker Bs. Power calculating unit 2a for calculating the main power amount, branch current detecting unit CTmn for periodically detecting the value of the branch current flowing through each branch breaker Bmn for each branch breaker, and main power amount calculated by the power calculating unit 2a And a calculation unit 2b that receives a branch current measured by each branch current detection unit CTmn and calculates a branch power amount that is supplied via each branch breaker Bmn based on each branch current, and a calculation unit 2b A control unit 2c that generates image data representing the main power amount and image data representing each branch power amount based on the input main power amount and branch power amount; Provided. The main current detector CTs and the power calculator 2a constitute a first measuring means for measuring the main power, and the branch current detector CTmn and the calculator 2b measure the branch power. This constitutes a measuring means.

  The control unit 2c stores in advance the data of the branch breaker Bmn that performs power amount detection (branch breaker name: branch 1, branch 2,..., Etc.), and displays the main power amount and the branch power amount. Web content (web page) is created as image data for this purpose, and the web content is provided (distributed) to the terminal device in response to a request from the terminal device (web server function). The integrated device TM in the integrated management panel 1 and the electric device controller C1 are connected via the connector.

  A plurality of rooms Rn (n = 1, 2,...) Such as a living room, a bedroom, and a child room are provided in the house, and the house has three rooms R1, R2, and R3 in FIGS. As an example, an electric device provided in the room R1 is referred to as X1n, an electric device provided in the room R2 is referred to as X2n, and an electric device provided in the room R3 is referred to as X3n (n = 1, 2,...). Then, the branch breaker B1n (n = 1, 2,...) In the integrated management panel 1 is connected to each electric device in the room R1 via an electric circuit Lp1n (n = 1, 2,...) As shown in FIG. X1n is individually supplied with a 1: 1 correspondence, and the branch breaker B3n (n = 1, 2,...) Is connected to each electric device X3n in the room R3 via the electric circuit Lp3n (n = 1, 2,...). The branch breaker B20 supplies power to the plurality of electric devices X2n (n = 1, 2,...) In the room R2 through the electric circuit Lp20. Power is supplied all at once for n. That is, the branch breakers B1n and B3n supply power for each electric device, and the branch breaker B20 supplies power for each room.

  In FIG. 1 and FIG. 2, the branch current detectors for detecting the branch currents of the branch breakers B1n and B3n are referred to as CT1n and CT3n, and the branch current detector for detecting the branch current of the branch breaker B20 is referred to as CT20.

  FIG. 4 shows a detailed configuration around the main breaker Bs, the branch breaker Bmn, and the branch current detection unit CTmn. In the integrated management panel 1 comprising: a plurality of sensors Smn for detecting each branch current; a plurality of sensor units Amn for generating detection data based on the detection output of each sensor Smn; and a branch current from each sensor unit Amn. A measurement control unit Ka that collects detection data, outputs the collected detection data as detection information, and a transmission path 6 that connects the sensor units Amn to the measurement control unit Ka in a chain shape, and the outside of the integrated management panel 1 A display unit that is exposed to display detection information output from the measurement control unit Ka to the user. It has a door Kb. The sensor Smn, the sensor unit Amn, and the measurement control unit Ka constitute the branch current detector CTmn.

  Then, the plurality of sensor units Amn are connected in a chain shape (in a daisy chain) by the transmission path 6, and the measurement control unit Ka is configured to output a trigger signal to the sensor unit A11 at the starting end, and each sensor unit Amn is When the trigger signal is received, detection data is generated and transmitted to the measurement control unit Ka, and thereafter, the trigger signal is output to the terminal side (next stage) sensor unit. The branch breakers B1n to B2n to B3n and the sensors S1n to S2n to S3n are assigned serial numbers (No1, No2, No3,...) In this order.

  And the low voltage distribution line 100 is connected to the primary side of the main breaker Bs, the main electric circuit 11 is connected to the secondary side terminal of the main circuit breaker Bs, and the branch electric circuit Lpmn is the voltage poles 11a and 11b of the main electric circuit 11. One end of the branch circuit 12a is connected to one end of the main circuit 11 and the branch circuit 12b is connected to the neutral pole 11c of the main circuit 11 at one end.

  The main breaker Bs includes a power supply side terminal (not shown) connected to the voltage electrodes 101 and 102 of the low voltage distribution line 100, a power supply side terminal (not shown) connected to the neutral electrode 103, and the voltage electrodes 101, Two load-side terminals (not shown) that are voltage poles corresponding to the power-side terminals connected to 102 and neutral poles that correspond to the power-side terminals connected to the neutral electrode 103 When a load side terminal (not shown), a power source side terminal and a load side terminal are energized, an operation handle H1 is provided which is positioned on the on side. The main breaker Bs is configured to shut off between the terminals when the overcurrent is generated between the power supply side terminal and the load side terminal and to position the operation handle H1 on the off side.

  The branch breaker Bmn is a power source for electrically connecting a branch path terminal portion (not shown) to which the other ends of the branch paths 12a and 12b can be connected, and a load side power line (not shown). A line terminal portion (not shown) and an operation handle H2 which is normally positioned on the side are provided. The branch breaker Bmn is configured to cut off between these terminals when an overcurrent is generated between the branch path terminal and the power line terminal and to position the operation handle H2 on the off side. Has been. Note that the main breaker Bs and the branch breaker Bmn may be configured to cut off the circuit not only for the overcurrent but also for the occurrence of a short-circuit current.

  On the other hand, the main electric circuit 11 and the branch electric circuits 12a and 12b are both made of a conductive metal plate, and the width, thickness, etc. of the main electric circuit 11 and the branch electric circuits 12a, 12b have a maximum current capacity that matches the maximum rated current of the main circuit breaker. Is set.

  Next, the sensor Smn, the sensor unit Amn, the measurement control unit Ka, the display unit Kb, and the transmission path 6 will be described. Here, the sensor Smn, the sensor unit Amn, and the transmission path 6 are formed and integrated on the printed circuit board 7, and the printed circuit board 7 will be described first.

  The printed circuit board 7 has a multilayer structure formed by laminating a plurality of insulating plates (that is, a multilayer circuit board), and as shown in FIG. 5, the insertion hole 7a for the branch path 12b penetrating the printed circuit board 7 on the front and back sides. There are multiple. In the printed circuit board 7, a plurality of through holes 7 b penetrating the printed circuit board 7 on the front and back sides are formed in the periphery of each insertion hole 7 a so as to surround the insertion holes 7 a. Furthermore, a plurality of through holes 7c penetrating from the front surface to the middle layer (a layer between the front surface and the back surface) are formed in the periphery of each insertion hole 7a in the printed board 7. A sensor Smn and a sensor unit Amn are mounted on the surface of the printed circuit board 7 and a transmission path 6 is formed. The sensor unit Amn may be configured by individually mounting necessary electronic components such as discrete semiconductors on a printed circuit board, or may be an integrated (integrated) necessary electronic component. . The printed board 7 is not limited to the multilayer board as described above, and a double-sided board may be used.

  The sensor Smn is a current sensor for detecting the current value of the branch path 12b corresponding to each branch breaker Bmn, that is, the current value flowing through the branch breaker Bmn. Since such a sensor Smn has the same configuration, only the sensor S11 will be described in detail.

  As shown in FIG. 5, the sensor S11 is a current sensor having a Rogowski coil composed of a coil line 20 formed on the printed circuit board 7, and outputs a differential form of current as a detection output. The coil line 20 is formed on a pattern 21a (shown by a solid line in FIG. 5) formed on the surface of the printed circuit board 7 through a through hole 7b around the insertion hole 7a of the printed circuit board 7 and on the back surface of the printed circuit board 7. The coil portion 21 is formed by connecting a pattern 21b (shown by a dotted line in FIG. 5). Further, the end of the coil portion 21 is connected to one end side of a return line 22 (shown by a one-dot broken line in FIG. 5) through the through hole 7 c, and the other end side of the return line 22 is the end of the coil portion 21. It is formed in the middle layer of the printed circuit board 7 so as to return from the side to the start end side of the coil portion 21 through the coil portion 21. That is, in the sensor S11, the start end side of the coil portion 21 and the other end side of the return wiring 22 are used as input terminals, respectively.

  Next, the sensor unit Amn generates detection data based on the detection output of the sensor Smn. The sensor unit Amn generates detection data including an effective value of the current value based on the detection output acquired from the sensor Smn, and starts operation. When the trigger signal is received, the detection data is modulated into a transmission signal and transmitted to the measurement control unit Ka. Furthermore, after transmitting the detection data, a trigger signal is output to the next sensor unit Amn.

  The measurement control unit Ka demodulates the transmission signal output by the sensor unit Amn, extracts detection data, and sequentially outputs the received detection data to the calculation unit 2b, and a trigger for collecting the detection data from the sensor unit. A function of outputting a signal to the sensor unit A11 at the start, and a function of generating display data corresponding to the detection data and outputting the display data to the display unit Kb.

  The display unit Kb includes, for example, a plurality of LEDs corresponding to each branch breaker Bmn, and the number of the branch breaker Bmn and the current corresponding to the branch breaker Bmn based on the display data output from the measurement control unit Ka. The value is displayed by turning off, blinking, turning on, or changing the color of the LED, and is provided in the integrated management panel 1 with the LED exposed to the outside of the integrated management panel 1.

  As shown in FIG. 4, the transmission path 6 connects the sensor unit Amn to the measurement control unit Ka using three lines including a trigger transmission line 60, a data transmission line 61, and a ground line 62. Here, the trigger transmission line 60 includes a connection line 60a for connecting the trigger signal output from the measurement control unit Ka to the sensor unit A11 at the start end in a one-to-one relationship, and a trigger signal sequentially transmitted from the sensor unit on the end side ( It consists of feed connection lines 60b to 60p that are connected one-to-one to the sensor unit of the next stage, and connects the sensor units Amn to the measurement control unit Ka in a chain shape.

  The data transmission line 61 connects detection data output from each sensor unit Amn to the measurement control unit Ka, and the ground line 62 is a trigger transmission line in the measurement control unit Ka and each sensor unit Amn. 60 and data transmission line 61 is used as a voltage reference. For the ground line 62, the illustration of the connection portion with the sensor unit Amn is omitted for simplification of the drawing.

  As described above, when the coil line 20 formed on the printed circuit board 7 is used as the sensor Smn, the integrated management in which the space that can be used by the main breaker Bs, the branch breaker Bmn, the main electric circuit 11, the branch electric circuits 12a, 12b, and the like is narrowed. Even in the casing of the panel 1, there is an effect that the sensor Smn can be arranged efficiently. In addition, the sensor Smn does not get in the way when the integrated management panel 1 is constructed, and the workability of the integrated management panel 1 is not impaired. Further, since such a sensor Smn has an air core, there is no iron core (magnetic core), so that there is an advantage that it can be reduced in size and weight, and there is no saturation due to the iron core. As a result, it is possible to obtain a current sensor having a wide dynamic range and capable of detecting a large current.

  FIG. 6 shows another structure of the sensor Smn, which includes a toroidal coil 31 formed on the printed circuit board 7. The toroidal coil 31 has a winding coil 32 (hereinafter referred to as a leading coil) in the winding direction and a rewinding coil 33 (hereinafter referred to as a return coil) in the rewinding direction. They are doubled and connected continuously in series. The advance coil 32 and the return coil 33 are displayed at equal pitch intervals on the outer circumference connecting the radial lines 34 and the radial lines 34 formed radially from the insertion holes 7a on the front and back surfaces of the printed circuit board 7. It is formed by a connection portion 35 provided on the back surface, and a through hole 36 that electrically connects the front and back radial lines 34 and the connection portion 35 electrically. In FIG. 6, these radial lines 34 and connection portions 35 are indicated by dark solid lines on the front surface side of the printed circuit board 7 and are indicated by white solid lines on the back surface side.

  The connecting portion 35 is formed so as to avoid adjacent radial lines on both the front and back surfaces. In addition, the connecting portion 35 connects the front side coil and the back side coil of the connecting portion 35 at the connecting portion by the through hole 36a in the advance coil 32 and the return coil 33, and this connecting portion sandwiches both the connecting portions. The front surface side and the back surface side of the coil are arranged so as to be approximately equal in length.

  The same number of through holes 36a and 36b are arranged at equal intervals on the circumference on the side farther and closer to the insertion hole 7a having the center 7d of the insertion hole 7a as the center. Through holes 36c and 36d for connecting the front and back radial lines 34 and the connecting portions 35 (35b) are provided at the boundary portions which are the ends of the front and back radial lines 34 and the connecting portions 35 (35b). The 36c and 36d are arranged symmetrically with respect to a straight line connecting the through holes 36a and 36b. Further, the through holes 36a and 36d (on the circumference of the radius R2) on the circumference connecting the connecting portion 35 and the through holes 36a (on the circumference of the radius R1) existing on the outermost circumference are externally connected. In order to suppress the influence on the magnetic field, it is desirable that the difference between the radii R1 and R2 is as small as possible. The difference between the radii R1 and R2 is more specific because of restrictions on the printed circuit board manufacturing (line width, throughland diameter). 1 mm or less.

  The radial lines 34 are arranged on the printed circuit board 7 at a constant pitch radially about the center 7d of the insertion hole 7a. The conductor part which comprises the radial line 34 and the connection part 35 is formed with the copper foil in the printed circuit board 7, and this copper foil can be formed by etching the double-sided printed circuit board which consists of an epoxy resin containing glass, for example. .

  The connection portion 35 is an end portion on the outer peripheral side of the radial line 34 (here, a boundary portion between the radial line 34 and the connection portion 35, for example, the return coil 33 indicates the through hole 36 c or 36 d, , Which extends in a circumferential direction from the radial line 34 of the advance coil 32 corresponding to the through-hole 36c or 36d of the return coil 33, and electrically connects the plurality of radial lines 34. And through the through-hole 36 (36a-36d), the edge part and the connection part 35 of the some radial line 34 formed in the front and back both surfaces of the printed circuit board 7, and the edge part of the radial line 34 in an opposite surface And the coil which winds the printed circuit board 7 by a conductor part is formed by connecting with the connection part 35 in series electrically.

  The advance coil 32 is electrically connected to the radial line 34 on the front side and the back side and the connection part 35a of the advance coil 32 through the through hole 36a with a through hole 36a provided at an intermediate position of the connection part 35a as a connecting part. To form a coil of one turn. Similarly, the return coil 33 forms a one-turn coil by electrically connecting the radial line 34 on the front side and the back side and the connecting portion 35b of the return coil 33 to each other through the through holes 36 (36a, 36c, 36d). . And the pitch of the coil | winding coil of this advance coil 32 and the return coil 33 is formed equally. Further, the connection portion 35 is formed so as to avoid the adjacent radial line 34, and the coil pattern formed by the connection portion 35 and the radial line 34 of both the coils 32 and 33 is formed in the same shape on the front and back of the printed circuit board 7. ing. With the above configuration, the conductor (conductor film) forming the coil of the toroidal coil 31 is formed substantially symmetrically and uniformly with respect to the central axis of the center 7d of the insertion hole 7a of the printed circuit board 7. In the current measurement using the sensor Smn, a measured conductor through which a current flows is passed through the insertion hole 7a, and an induced current generated by the magnetic flux of the magnetic field caused by this current passing through the cross-sectional areas of the coils 32 and 33 is generated. To detect.

  FIG. 7 is a partially exploded perspective view showing the arrangement of the main breaker Bs, the branch breaker Bmn, the branch current detection unit CTmn and the like in the integrated management panel 1, and a current sensor block SB is arranged beside the main breaker Bs. The sensor block SB is configured by attaching the printed circuit board 7 on which the sensor Smn, the sensor unit Amn, and the transmission path 6 are formed to face both sides of the long block body SB1 in the short side direction. A plurality of branch breakers Bmn are juxtaposed along the longitudinal direction on both sides of the current sensor block SB, and each branch breaker Bmn is arranged such that the branch path terminal portion faces each sensor Smn. Thus, the wiring work between the branch breaker Bmn and the sensor Smn can be easily performed. Further, above the current sensor block SB, a display unit Kb is attached to a bracket 41 on a rectangular frame provided via a spacer 40, and each LED of the display unit Kb is exposed outside the integrated management panel 1, The approximate value of each branch current is displayed.

  Next, the integrated device TM in FIG. 1 is connected to the control unit 2c in the panel, the electrical device controller C1, the personal computer PC outside the panel, and the display control device CV via a LAN cable, and the center device SV and the like via the Internet. Connected to mobile phone MP or other terminal device, has packet processing function, path switching function, network security function, UPnP (Universal Plug and Play) control point function, etc. in network Controls data exchange.

  In addition, the electric device controller C1 in FIG. 1 has an interface function between the integrated device TM and the electric device Xmn conforming to the unified standard of the Japan Electrical Manufacturers' Association (JEMA), and requests control from the terminal device via the integrated device TM. When the message is received, each electric device Xmn is individually controlled via the control cable Lj to switch between operation (lighting in the case of a lighting fixture) and stop (lighting off in the case of a lighting fixture), and via the integrated device TM. When the monitoring request message is received from the terminal device, the operating state of each electric device Xmn (running <lighting> or stopping <lighting off>) is individually acquired via the control cable Lj, and the control request and the monitoring request are responded. A response message (operation state of each electrical device Xmn) is transmitted to the terminal device that is the transmission source of the request message via the integrated device TM. It has a function (control monitoring function). In addition, the electric device controller C1 stores in advance device name information of the electric device Xmn under its control, name information of the room Rn, etc., and displays the name and operation state of the electric device Xmn with characters and symbols. It also has a function (web server function) for creating web content (web page) and providing (distributing) the web content to the terminal device in response to a request from the terminal device.

  In the power monitoring system configured as described above, a power real monitor request message is transmitted to the energy management unit 2 from a terminal device such as a personal computer PC, a display control device CV, or a portable terminal PT connected to the Internet. When the control unit 2c of the energy management unit 2 receives the power real monitor request via the integrated device TM, the power real monitor image data generated by the control unit 2c is transmitted to the power real monitor request via the integrated device TM. It transmits toward the terminal device which has transmitted.

  In terminal devices such as a personal computer PC, display control device CV, and portable terminal PT that have received power real monitor image data, the image data is displayed on the monitor screen of each terminal device, and the main power and branch breaker Bmn are branched. The current value of power can be monitored. FIG. 8 shows a branch power real monitor image displayed on the terminal device, and the current value of the branch power amount for each branch breaker Bmn is represented by a bar graph G1. In addition to the power amount graph display, the power amount real monitor screen includes the date and time display, the menu button B1 for transitioning to the menu screen, the previous page button B2 and the rear page button B3 for transitioning to the previous page and the subsequent page, the past A history button B4 or the like for displaying the data of the amount of power is provided.

  In this way, since the amount of power supplied for each branch breaker Bmn can be monitored, it is possible to identify a branch power system that is wasting power, and the user can connect to the identified branch power system. Energy saving can be easily achieved by performing specific operations such as stopping and extinguishing the electrical device Xmn.

  Furthermore, in the present embodiment, the name of the electric device Xmn or the room Rn corresponding to the branch breaker Bmn can be input using a terminal device such as a personal computer PC, a display control device CV, or a portable terminal PT. The name input function will be described.

  First, in the terminal device, with the branch power amount monitor screen shown in FIG. 8 displayed, the display area M1 of the branch breaker Bmn for inputting the name is selected, and then the device name (for example, air conditioner, floor heating, IH, etc.) is selected. Device) or room name (for example, living room, kitchen, bathroom, etc.).

  Then, the data of the branch breaker Bmn corresponding to the selected area M1 (branch breaker name: branch 1, branch 2,...) And the input device name or room name are sent from the terminal device to the energy management unit 2. The control unit 2c that has received the data via the integrated device TM stores each name in association with the branch breaker Bmn. Thereafter, when the control unit 2c generates the branch power monitor image data, the branch power monitor is generated by referring to the device name or room name corresponding to each branch breaker Bmn and displayed on the terminal device. As shown in FIG. 9, the image for use is an image representing the branch power amount corresponding to the device name or the room name as a bar graph G2. Therefore, it is possible to recognize at a glance which electrical device the displayed branch power amount is and the power consumption amount in which room.

  Further, the control unit 2c of the energy management unit 2 includes a steady data setting unit 2d and a power supply state determination unit 2e. Each branch breaker is used by using a terminal device such as a personal computer PC, a display control device CV, or a portable terminal PT. The power on / off state of the electric device Xmn connected to Bmn or the electric device in the room Rn can be monitored, and the power on / off monitoring function will be described below.

  Electrical devices Xmn are not only those that consume no power when the power is turned off, such as lighting fixtures, but also those that generate standby power when the power is turned off, such as TVs and air conditioners, and are stopped like refrigerators. There are things that are always working without. Therefore, even when the electric device Xmn is in a power-off state, a branch current may flow through the branch breaker Bmn. Therefore, for each branch breaker Bmn, a stop state in which the electric device connected to the branch breaker is turned off. Branch current (hereinafter referred to as steady branch current). Further, the steady branch current for the plurality of devices in the room Rn is the sum of the standby current consumed even when the electric device is powered off and the operating current of the refrigerator or the like that does not normally stop.

  Therefore, by operating a menu screen (not shown) in the terminal device, the steady state registration image of the target branch breaker Bmn shown in FIG. 10 is displayed, and the power of the electrical equipment connected to the target branch breaker Bmn is turned off. When the OK button B11 on the steady state registration image is selected in the state (except for those that are always in operation, such as a refrigerator), the terminal device sends the target branch breaker Bmn to the energy management unit 2 A steady state registration request message is transmitted. When the control unit 2c of the energy management unit 2 receives the steady state registration request via the integrated device TM, the steady data setting unit 2d acquires the detection value of the branch current of the branch breaker Bmn via the calculation unit 2b. The branch current detection value is set as the steady branch current value of the branch breaker Bmn. This process is performed for all branch breakers Bmn, and a steady branch current value is set for each branch breaker Bmn.

  Thereafter, the steady data setting unit 2d automatically updates the steady branch current value by performing the processing shown in the flowchart of FIG. First, the detected value of the branch current of the branch breaker Bmn is acquired via the calculation unit 2b (step S1), and then it is determined whether or not this detected branch current value is smaller than the current steady-state branch current value ( Step S3). If the branch current detection value is smaller than the current steady branch current value, the branch current detection value is set as a new steady branch current value (step S3). If the branch current detection value is greater than or equal to the current steady branch current value, the process returns to step S1 and the same processing as described above is performed. Therefore, the steady branch current value can be appropriately set at any time.

  When the user is at home, before going out, or before going to bed, the user operates a menu screen (not shown) on the terminal device to display the scene setting image shown in FIG. 12A on the terminal device. When selected and operated from the home setting button B21 to be set, the outing setting button B22 that is set when the family member is out, and the good night setting button B23 that is set when the family member goes to bed, a home event, an outing event, or a good night event is transmitted from the terminal device, When the device controller C1 receives a home event, an outing event or a good night event via the integrated device TM, each electric device Xmn is individually controlled according to each scene, and is operated (lighted in the case of a lighting fixture) and stopped (illumination). Switch off). For example, in an outing scene, electrical devices such as security devices are operated, but lighting fixtures are turned off collectively (batch control).

  Furthermore, as shown in the sequence of FIG. 14, when an outing event (or night event) is transmitted from the terminal device, and the control unit 2c of the energy management unit 2 receives the outing event (or night event) via the integrated device TM, The power supply state determination unit 2e performs the following processing to check for the presence of an electrical device that has been forgotten to be turned off from electrical devices that the device controller C1 does not collectively control. The scene setting image is provided with a menu button B24. When the menu button B24 is selected, the menu screen is displayed.

  First, the power supply state determination unit 2e acquires the branch current detection value of each branch breaker Bmn via the calculation unit 2b, and obtains the branch current detection value of each branch breaker Bmn and the steady branch current value of the branch breaker Bmn. When the difference obtained by subtracting the steady branch current value from the branch current detection value is equal to or greater than a certain value, the electric device Xmn connected to the branch breaker Bmn or the electric device in the room Rn is in the on state. If the difference obtained by subtracting the steady-state branch current value from the branch current detection value is smaller than a certain value, the electric device Xmn connected to the branch breaker or the electric device in the room Rn is turned off. It is determined that it is in a state.

  When the power of the electric device Xmn is on or when the electric device in the room Rn is on, the control unit 2c displays the name of the electric device Xmn or the room Rn in the power on state. Is transmitted to the terminal device that has transmitted the outing event (or good night event) via the integrated device TM as a forgetting event (see FIG. 14). At this time, when responding to the outing event, the control unit 2c generates power state display image data excluding the electric device Xmn and the room Rn that are used even when the security device or the like is out. On the other hand, when responding to a good night event, the electric device Xmn and the room Rn that are used even when sleeping, such as an air conditioner, are excluded from the target and generate power state display image data. The image to be displayed on the terminal device when requesting the power on / off monitor is not limited to the scene setting image, but is, for example, a trigger transmission image having one operation area for transmitting a power state determination request. May be.

  In a terminal device such as a personal computer PC, a display control device CV, or a portable terminal PT that has received the power state display image data, the image data is displayed on the monitor screen of each terminal device as shown in FIG. The name of the electric device Xmn or the room Rn in the state can be monitored. Therefore, the user can confirm the presence or absence of an electrical device for which the power is forgotten to be turned off when going out or at bedtime, etc., and can raise the user's awareness of energy saving and achieve the goal of energy saving.

  Then, when the confirmation button B31 is selected in the power state display image, a message requesting monitoring of the electric device Xmn or the room Rn in the power-on state is transmitted from the terminal device to the energy management unit 2 (see FIG. 14). When the energy management unit 2 receives the monitoring request via the integrated device TM, the energy management unit 2 performs the following processing.

  First, the electric device controller C1 stores in advance the device name information of the electric device Xmn and the name information of the room Rn under its own supervisory control function, and the control unit 2c includes the name information of the electric device controller C1. Whether there is the same name as the device name of the electrical device Xmn to be monitored or the device name of the room Rn, and if there is the same name, the control unit 2c determines whether the electrical device Xmn to be monitored or Recognizing that the electrical device in the room Rn is already under the control of the electrical device controller C1, the monitoring request is sent to the monitoring control image data generated by the electrical device controller C1 based on the operating state of the electrical device via the integrated device TM. Is transmitted toward the terminal device that has transmitted (see FIG. 14).

  The terminal device that has received the monitoring control image data from the electrical device controller C1 displays the monitoring control image generated by the electrical device controller C1 as shown in FIG. In this monitoring control image, the operating state of the electric device Xmn to be monitored and the electric device in the room Rn (running <lighting> or stopping <lighting off>) is displayed in the state display area M1.

  Further, in the monitoring control image of FIG. 13, an operation button B41 for each electrical device is displayed. When this operation button B41 is selected, a message for requesting control of the electrical device Xmn or the electrical device in the target room Rn. Is transmitted from the terminal device. When the electric device controller C1 receives the control request via the integrated device TM, the electric device Xmn to be controlled or the electric device in the target room Rn is controlled to operate (lights up in the case of a lighting fixture) and stops ( Switch off). Therefore, the power can be turned off without going to the side of the electric device Xmn by remotely controlling the electric device Xmn from a place where the user goes out or sleeping.

  FIG. 15A is a scene setting image displayed on the mobile phone when a mobile phone is used as the mobile terminal PT. The outing setting button B51 set when the housekeeper goes out, and is set when the housewife goes to bed. The sleep setting button B52 and the menu button B53 are provided and can be operated in the same manner as the scene setting image shown in FIG.

  FIG. 15B shows a power state display image displayed on the mobile phone when a mobile phone is used as the mobile terminal PT. The power state display image is the same as the power state display image shown in FIG. The name of the electric device Xmn or the room Rn in the on state can be monitored. When the confirmation button B61 provided for each electrical device Xmn or room Rn is selected in the power state display image, a monitoring request message for the electrical device Xmn or room Rn is transmitted from the terminal device to the energy management unit 2, and Similarly, the electric device Xmn can be controlled and monitored via the electric device controller C1. A menu button B62 is also provided.

  Furthermore, in the present embodiment, the power on / off determination result is displayed as an image, but the determination result may be notified by sound or lighting of an LED or the like.

It is a block diagram which shows each structure of the power monitoring system of embodiment. It is a system diagram which shows a structure same as the above. It is a wiring diagram of the electric equipment in a house same as the above. It is a block diagram which shows a part circuit in the integrated management board same as the above. It is a top view which shows a sensor same as the above. It is a top view which shows another sensor same as the above. It is a partially exploded perspective view which shows the inside of an integrated management board same as the above. It is a top view which shows the image for branch electric power real monitors for every branch breaker same as the above. It is a top view which shows the image for branch electric power real monitors for every electric equipment name same as the above. It is a top view which shows a steady state registration image same as the above. It is a flowchart figure which shows the update process of a steady branch current value same as the above. (A) is a scene setting image, (b) is a plan view showing a power state display image. It is a top view which shows the image for monitoring control same as the above. It is a sequence diagram which shows a power-off forget check process same as the above. It is a top view which shows the display image of a mobile telephone, (a) is a scene setting image, (b) shows a power supply state display image.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Integrated management board 2 Energy management unit Bs Master breaker Bm Branch breaker CTmn Branch current detection part 2b Calculation part 2c Control part 2d Steady-state data setting part 2e Power supply state determination part TM Integrated apparatus C1 Electric equipment controller PC, CV, PT terminal apparatus Xmn Electrical equipment

Claims (3)

For each branch breaker, the number of branch breakers provided on the main breaker, the branch circuit that branches from the secondary side of the main breaker and supplies power to the electrical equipment, and the amount of electricity used via each branch breaker Measuring means for measuring, a control means for generating information based on the amount of electricity used for each branch breaker, and a terminal device for transferring information between the control means,
The control means sets the steady-state data setting for setting the amount of electricity used to be supplied through the branch breaker when the power of the electrical equipment connected to each branch breaker is turned off to the amount of steady electricity used for each branch breaker. And a power supply state determination means for determining the on / off state of the power supply of the electrical equipment connected to the branch breaker based on the difference between the amount of electricity used for each branch breaker and the amount of steady electricity used,
The terminal device has a notification unit that acquires a determination result of the power state determination unit from the control unit and notifies the determination result corresponding to a name corresponding to each branch breaker. The power monitoring system according to claim 1, wherein the terminal device reports a name corresponding to a branch electric circuit to which an electric device determined to be in an on state is connected. 3. The power monitoring system according to claim 1, wherein the steady data setting unit sets the minimum value to the steady electricity usage every time the electricity usage for each branch breaker updates the minimum value.

Images