JP2008175783A - Power monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power monitoring system capable of checking easily operation status or halting state of electrical equipments connected to branch circuits. <P>SOLUTION: A controller 2c of an energy management unit 2, in halting state of electrical equipments Xmn (m, n=1, 2, ..., and hereafter the same is applied) connected to each branch breakers Bmn, is equipped with: a setting section 2d for electrical quantity at shutdown, setting measured value of electricity usage metered at branch current detecting sections CTmn and an operating section 2b as the electrical usage quantity at shutdown; and an operation status/halting state discriminating section 2e, discriminating operation status/halting state of corresponding electrical equipments Xmn based on difference between the measured value of electricity usage of each branch breaker Bmn and the electricity usage quantity at shutdown. Terminal devices, such as personal computers PC, display controlling devices CV, and mobile terminals PT, acquire discriminated result of operation status/halting state from the controller 2c and display operation status/halting state of electrical equipments Xmn connected to each branch breaker Bmn on a display screen using preset icons corresponding to each electrical equipment Xmn. <P>COPYRIGHT: (C)2008,JPO&INPIT

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 that can measure the main power amount in the distribution board at home and monitor the measurement result on the web screen, and in this system, it can be compared with the power consumption of other homes (for example, , See 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 (for example, an air conditioner (air conditioner), a floor heating appliance, an IH appliance) 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. Therefore, it was impossible to monitor the power on / off state of the electrical equipment connected to each branch circuit. For example, the power of an electrical device that does not need to be used before going to bed is cut off, but it has not been possible to easily confirm whether there is an electrical device that has been forgotten to be turned off. Also, it was not easy to confirm that the electrical equipment in the house was turned off from the outside.

  The present invention has been made in view of the above problems, and an object thereof is to provide a power monitoring system capable of easily confirming the operating state or the stopped state of an electrical device connected to a branch circuit. It is in.

  In order to achieve the above object, the invention of claim 1 includes a main circuit breaker, a plurality of branch circuit breakers each provided in a branch circuit that branches from a secondary side of the main circuit breaker and supplies electric power to the electric circuit, A power consumption measuring unit that measures the electricity usage supplied via the branch breaker for each branch breaker, and a control unit that generates information based on the electricity usage for each branch breaker measured by the power consumption measuring unit. And a terminal device that exchanges information with the control unit, and the control unit measures the amount of electricity used measured by the power consumption measuring unit when the electrical equipment connected to each branch breaker is stopped. It is connected to the branch breaker based on the difference between the measured electricity usage value for each branch breaker and the stopped electricity usage. ing The terminal device obtains the determination result of the operation / stop determination means from the control unit, and the electric device connected to each branch breaker. The operation / stop state is displayed on a display screen using an icon set in advance corresponding to the electric device connected to each branch breaker.

  According to a second aspect of the present invention, in the first aspect of the invention, the terminal device is connected to each branch breaker as an electric device connected to a branch breaker to which an unspecified electric device can be connected in accordance with a user's registration operation. If the device registration means for registering the electrical equipment that may be used is provided and the determination result of the operation / stop determination means is obtained from the control unit, the operation / stop state of the electric device registered by the device registration means is preset. It is characterized by displaying on the display screen using the icon.

  The invention of claim 3 corresponds to the invention of claim 1 or 2, wherein the terminal device corresponds to a touch panel that displays an icon as a selection button on the screen of the display screen, and an icon operated when an icon touch operation is performed. Information request means for outputting to the control unit an information request signal for requesting information on the electric device to be transmitted, and when the information on the electric device is returned from the control unit in response to the information request signal, the acquired information on the electric device is displayed. It is characterized by switching to a screen to be displayed.

  According to a fourth aspect of the present invention, in the first or second aspect of the invention, the terminal device includes a touch panel that displays an icon as a selection button on the screen of the display screen, and when the icon touch operation is performed, the operated icon A control command input screen for inputting a control command for controlling the electrical device corresponding to the is displayed on the display screen.

  According to a fifth aspect of the present invention, in the first or second aspect of the invention, the terminal device includes a touch panel on which a plurality of selection buttons are displayed corresponding to each electric device on the screen of the display screen, and the selection button touch operation Is performed, a control command for inverting the operation / stop state of the electric device corresponding to the operated selection button is transmitted to the control unit, and when the control unit receives the control signal from the terminal device, the corresponding electric device It is characterized by reversing the operation / stop state.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the terminal device includes group setting means for grouping each branch breaker into a plurality of groups, and each group is assigned to each group. The operation / stop state of the electrical equipment connected to the branch breaker to which it belongs is displayed on a display screen using an icon.

  According to the invention of claim 1, the terminal device corresponds to each branch breaker according to the operation / stop state of the electrical equipment connected to each branch breaker based on the determination result of the operation / stop determination means. Since the set icon is used for display on the display screen, there is an effect that it is possible to easily grasp visually whether the electric device connected to each branch breaker is in an operating state or a stopped state.

  In addition, for example, in the case of a branch breaker connected to an outlet of a room, unlike a branch breaker provided in a branch circuit to which a specific electric device such as an air conditioner is connected, it is unclear what kind of electric device is connected. According to the second aspect of the present invention, it is possible to register an electric device that may be connected to the branch breaker by the device registration means, and in the terminal device, the electric device registered by the device registration means is stored in the branch breaker. As connected, it can be displayed by an icon whether this electric equipment is in an operating state or a stopped state. Therefore, there is an effect that the user can easily visually grasp the operating state or the stopped state of the electric device connected to the branch breaker to which the unspecified electric device is connected by displaying the icon.

  According to the invention of claim 3, when the user performs a touch operation on the icon displayed on the display screen of the terminal device, information on the electrical equipment corresponding to this icon is displayed on the display screen. Information can be acquired. Moreover, in the terminal device, when the information on the electric device is returned from the control unit, the screen is switched to a screen that displays the acquired information on the electric device, so other information on the electric device is displayed on the screen that displays the operation / stopped state. The display screen can be made smaller as compared with the case where the image is also displayed.

  According to the invention of claim 4, when the user touches an icon corresponding to a desired electric device from a screen that displays the operation state or stop state of the electric device with an icon, the electric device corresponding to the icon is controlled. Since the display screen is switched to the control command input screen for inputting the control command, it is possible to control a desired electrical device by inputting the control command on the control command input screen.

  According to the invention of claim 5, when the user performs a touch operation on the selection button displayed on the display screen of the terminal device, the operation / stop state of the electrical device corresponding to the selection button can be reversed.

  According to the invention of claim 6, for each group grouped by the group setting means, the icon corresponding to the branch breaker belonging to each group is displayed on the display screen, so it corresponds to the related branch breaker. By displaying the icons as a group, the operation / stop state of the electrical device can be easily grasped.

  Embodiments of the present invention will be described below with reference to the drawings.

  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 Lj (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. When the electrical device Xmn (subscripts m and n indicate integers of 1 or more (m, n = 1, 2,..., The same applies below)), a plurality of ( In the illustrated example, two terminal devices (personal computer PC and a terminal device having a web browser function such as a display control device CV) are provided, and the integrated management panel 1 and the terminal device are general-purpose communication protocols. TCP / IP, UDP, constitute a home network using HTTP, etc.).

  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 a portable terminal device (portable terminal PT) having a web browser function such as (Personal Digital Assistance) and the center device SV, for example, using the portable terminal PT You can control and monitor your home appliances from the outside.

  The center device SV is composed of a general-purpose computer device having a network function. The center device SV is a message addressed to the integrated management panel 1 transmitted from the portable terminal PT through the Internet, or a terminal device that does not belong to the home network from the integrated management panel 1 (see FIG. (Not shown) has a function of relaying a message transmitted to the destination. 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 has a main breaker Bs that receives commercial power supplied to the house from the outside on the primary side, and a plurality of branches that are inserted into the electric circuit branched from the secondary side of the main breaker Bs. Breaker Bmn (m = 1, 2,..., N = 1, 2,...), Energy management unit 2, integrated device TM, and electrical equipment controller Cl. And each electric circuit Lpmn (m = 1, 2, ..., n = 1,2, ...) branched via the branch breaker Bmn is led out of the integrated management panel 1, and is connected to each electric circuit Lpmn. Operation power is supplied to Xmn (m = 1, 2,..., N = 1, 2,...).

  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. And a branch current detector CTmn (m = 1, 2,..., N = 1) that periodically detects the value of the branch current flowing through each branch breaker Bmn for each branch breaker. , 2,..., The main power amount calculated by the power calculation unit 2a and the branch current measured by each branch current detection unit CTmn are input and supplied via each branch breaker Bmn based on each branch current. A calculation unit 2b for calculating the branch power amount, and image data representing the main power amount and each branch power amount based on the main power amount and the branch power amount input from the calculation unit 2b. And a control unit 2c for generating to the image data. The above-described main current detection unit CTs and the power calculation unit 2a constitute a used power amount measurement unit that measures the main power amount, and the branch current detection unit CTmn and the calculation unit 2b measure the branch power amount. A quantity measuring unit is configured.

  The control unit 2c stores in advance the data of the branch breaker Bmn for detecting the electric energy (the name of the branch breaker: branch 1, branch 2,..., The name of the electrical device connected to each branch circuit, etc.). Web content (web page) for displaying the on / off state of the electrical equipment connected to each branch circuit, and web content (web page) as image data for displaying the main power amount and branch power amount ) And providing (distributing) desired web content to the terminal device in response to a request from the terminal device (web server function), and integrating in the integrated management panel 1 via the LAN cable An apparatus TM, an electric device controller Cl, and the like are connected. Here, the name of the electrical equipment connected to the branch breaker Bmn is stored in the control unit 2c as the data of the branch breaker Bmn, and individually for an independent circuit such as an air conditioner (air conditioner) or a floor heating facility. In the case of the provided branch breaker, the name of the corresponding device is stored. In addition, in the case of a branch breaker in which an unspecified electrical device may be connected instead of a single circuit, the name of the electrical device that may be connected to each branch breaker (for example, a lighting fixture, a television, a water heater) Etc.), and it is preferable to set the name of an electrical device (for example, hot carpet or iron) that is likely to be connected to each branch breaker by the user.

  A plurality of rooms Rn (n = 1, 2,...) Such as a living room, a bedroom, and a child room are provided in the house. In FIG. 1 and FIG. 2, the house includes three rooms R1, R2, and R3. As an example, an electric device provided in the room Rl is referred to as Xln, 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 Bln (n = 1, 2,...) In the integrated management panel 1 is connected to each electric device in the room Rl via an electric circuit Lpln (n = 1, 2,...) As shown in FIG. Xln 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. The power is supplied collectively in correspondence with n. That is, the branch breaker Bln B3n supplies 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 Bln 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, and is provided in the branch circuit Lp (consisting of the branch paths 12a and 12b) branched from the main breaker Bs and the main circuit 11. A plurality of sensors Smn (m = 1, 2,..., N = 1, 2,...) For detecting each branch current in the integrated management panel 1 including the branch breakers Bmn and the detection outputs of the sensors Smn. A plurality of sensor units Amn (m = 1, 2,..., N = 1, 2,...) That generate detection data, and branch current detection data are collected from each sensor unit Amn, and the collected detection data is detected as detection information. And a transmission path 6 for connecting the sensor unit Amn to the measurement control unit Ka in a chain shape, and exposed to the outside of the integrated management panel 1. To provided by the user and a display unit Kb for displaying detection information outputted from the measurement control unit Ka. The sensor Smn, the sensor unit Amn, and the measurement control unit Ka constitute the above-described branch current detection unit CTmn.

  Then, the plurality of sensor units Amn are connected in a chain shape (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 All 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 Bln to B2n to B3n and the sensors S1n to S2n to S3n are respectively given serial numbers (Nol, 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 which is connected to a branch path 12a and one end of the main path 11 is connected to the neutral pole 11c of the branch path 12b.

  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 Hl is provided which is positioned on the on side. The main breaker Bs is configured so that when an overcurrent occurs between the power supply side terminal and the load side terminal, the terminals are disconnected and the operation handle Hl is positioned 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 lines 12a and 12b are all formed from conductive metal plates, and the width, thickness, etc. of the main electric circuit 11 and the branch lines 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 7b penetrating through the printed circuit board 7 are formed so as to surround the through holes 7a in the periphery of each through hole 7a. 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 circuit 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 in the periphery of the insertion hole 7a in 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 60 in the measurement control unit Ka and each sensor unit Amn. And used as a voltage reference for the data transmission line 61. 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 housing of the panel 1, the sensor Smn can be arranged efficiently. Further, 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 it can be reduced in size and weight, and there is an advantage that there is no saturation due to the iron core. Thus, 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 includes 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, which are the same printed circuit board 7. Doubled on top and connected in series. Each of the advance coil 32 and the return coil 33 includes a radial line 34 formed radially from the insertion hole 7a for the branch path 12b penetrating the printed circuit board 7 on the front and back surfaces of the printed circuit board 7, and the plurality of radial lines. 34 are formed by connecting portions 35 provided on the front and back surfaces at equal intervals on the outer periphery connecting the 34, and through holes 36 that electrically connect the radial lines 34 and the connecting portions 35 on the front and back surfaces. In FIG. 6, these radial lines 34 and connecting portions 35 are formed on the front surface side of the printed circuit board 7 with thick solid lines, and those formed on the back surface side with white solid lines (double lines), respectively. Show.

  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 the connecting portion between the two coils. The front side and the back side 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 far from and close 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 through holes 36c and 36d are arranged symmetrically with respect to a straight line connecting the through holes 36a and 36b. Further, 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 connecting 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 connecting portion 35, for example, the return coil 33 indicates the through hole 36 c or 36 d, and the advance coil 32 has the return coil 33. Of the lead coil 32 corresponding to the through-hole 36c or 36d of the lead coil 32 extending in the circumferential direction, and electrically connects the plurality of radial lines 34 to each other. 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 connecting portion 35 is formed so as to avoid the adjacent radial line 34, and the coil pattern by the connecting 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. Yes. With the above configuration, the conductor portion (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. In the current measurement using the sensor Smn, the conductor to be measured through which the current to be measured flows is passed through the insertion hole 7a, and the magnetic flux of the magnetic field due to this current is generated by passing through the cross-sectional areas of both the coils 32 and 33. The induced current will be detected.

  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. It is connected to a portable terminal PT such as a cellular phone or other terminal device, and has packet processing function, path switching function, network security function, UPnP (Universal Plug and Play) control point function, etc. In this way, data transmission / reception in the network is controlled.

  Further, as shown in the block diagram of FIG. 11, the above-described terminal device TU includes a transmission / reception unit 71 that exchanges data with the integrated device TM, and an image display unit 72 that includes a touch panel such as a liquid crystal display with a touch switch. And a control unit 73 that performs overall control of the transmission / reception unit 71, the image display unit 72, and the like.

  Further, 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 is controlled from the terminal device TU via the integrated device TM. When the request message is received, each electric device Xmn is individually controlled via the information transmission path Lj to switch between operation (lighting for the lighting fixture) and stop (lighting off for the lighting fixture), and the integrated device TM When the monitoring request message is received from the terminal device TU via the terminal, the operating state (operation [lit] or stopped [light off]) of each electrical device Xmn is individually acquired via the information transmission path Lj, and the control request And a message (response state of each electric device Xmn) to the monitoring request is sent via the integrated device TM to the terminal device TU that is the transmission source of the request message. It has a function (control monitoring function) to be communicated. 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 TU in response to a request from the terminal device TU.

  In the power monitoring system configured as described above, in the terminal device TU such as the personal computer PC in the house, the display control device CV, or the portable terminal PT connected to the Internet, the control unit 73 is changed from the transmission / reception unit 71 to the energy management unit. 2, when the control unit 2 c of the energy management unit 2 receives the power real monitor request via the integrated device TM, the control unit 2 c receives the main power amount input from the calculation unit 2 b and Based on the branch power amount for each branch breaker Bmn, power real monitor image data for displaying the main power amount and the current value of the branch power amount for each branch breaker Bmn is generated, and the generated power real monitor image is generated. A terminal device that has transmitted a power real monitor request via the integrated device TM It is transmitted to the U.

  In the terminal device TU that has received the power real monitor image data, the control unit 73 controls the display of the image display unit 72 to display the power real monitor image data on the display screen of the image display unit 72. It is possible to monitor the current value of the power amount and the branch power amount for each branch breaker Bmn.

  Further, in the present embodiment, information (electric equipment) of the electrical equipment Xmn connected to each branch breaker Bmn for each branch breaker Bmn using a terminal device TU such as a personal computer PC, a display control device CV, and a portable terminal PT. Xmn type, installation location, etc.) can be registered, and this information registration function will be described below.

  First, when the selection button B17 for displaying the setting screen is touch-operated in a state where the remote control screen shown in FIG. 9B is displayed on the image display unit 72 in the terminal device TU, the control unit 73 displays the image. Based on the operation signal input from the display unit 72, the screen of the image display unit 72 is switched to a setting screen (not shown), and the user operates the branch breaker by touching a setting button displayed on the setting screen, for example. After designating the name of Bmn, the type (name) of the electrical equipment connected to this branch breaker Bmn and its installation location are input.

  When information on a desired electrical device is input on the above setting screen, the control unit 73 as a device registration unit registers information (name of the electrical device and information on the installation location) acquired from the image display unit 72 in a memory (not shown). At the same time, the control unit 2c, which is transmitted from the transmission / reception unit 71 to the energy management unit 2 and receives the above information via the integrated device TM, stores the received information in a memory (not shown) corresponding to each branch breaker Bmn. .

  After that, when the control unit 2c creates a display screen that displays the operation / stop state of the electrical equipment connected to the branch breaker Bmn, the type and installation location of the electrical equipment corresponding to each branch breaker Bmn are stored from the memory. As shown in FIGS. 10 (a) and 10 (b), the display screen that is read and generates image data and displayed on the terminal device TU indicates the type and installation location of the electrical equipment connected to the branch breaker Bmn. Characters N1 to N6, pictograms P1 to P6 for displaying the operation / stop state of each electric device with icons (pictograms, symbols, etc.), and the operation / stop state of each electric device are reversed by touch operation (operation → stop, Or, a screen in which selection buttons B21 to B26 to be stopped and operated) are arranged vertically. Here, in the case of a branch breaker Bmn that may be connected to an unspecified electrical device instead of a single circuit, information on the electrical device that may be connected to each branch breaker Bmn by the above-described registration process ( If a name is registered, it is assumed that the electric device registered by the above registration process is connected to the branch breaker Bmn, and an icon (pictograph) indicates whether the electric device is in an operating state or a stopped state. Signs P1 to P6) can be displayed, and the user can visually easily display the operation state or stop state of the electrical device connected to the branch breaker Bmn to which the unspecified electrical device is connected by displaying the icon. I can grasp.

  8A and 8B show an initial menu screen displayed on the display screen 72a of the image display unit 72 of the terminal device TU. The image display unit 72 of the terminal device TU includes a touch panel, and title bars TB1 and TB2 for displaying screen names (for example, “menu (1/2)” and “menu (2/2)”) are displayed on the upper side of the screen. In the center of the screen, menu selection buttons for selecting a desired menu (selection buttons B1 to B4 in the screen of FIG. 8A and selection buttons B5 and B6 in the screen of FIG. 8B) are located at the bottom of the screen. Are displayed with a previous page button B7 and a next page button B8 for transitioning to the previous page and the next page, respectively. Note that characters indicating the contents of the corresponding menu (“remote control”, “wireless remote control”, “eco monitor”, etc.) are displayed on the menu selection buttons B1 to B6, and when the menu selection button B1 is touched, the control unit 73 is operated. However, according to the touch operation input, the display screen of the image display unit 72 displays the operation / stop state of the electrical equipment connected to each branch breaker Bmn, and remote control for remote control (FIGS. 9 and 10). To see). When the next page button B8 is touch-operated on the screen of FIG. 8A, the control unit 73 switches the display screen of the image display unit 72 to the menu screen of FIG. 8B, and further on the screen of FIG. When the previous page button B7 is touch-operated, the control unit 73 switches the display screen of the image display unit 72 to the menu screen of FIG.

  9A and 9B show an example of a remote control screen displayed on the display screen 72a of the image display unit 72 of the terminal device TU. In the screen of FIG. 9A, the screen name (for example, “remote control screen”) is shown. )) Below the title bar TB3 indicating selection buttons B11 to B14 for selecting the type of electric device to be operated (for example, “lighting”, “air conditioner”, “floor heating”, “water heater”). Further displayed are a previous page button B18 and a next page button B19 for transitioning to the previous page and the next page, and a return button B20 for returning to the menu screen. When the next page button B19 is touched on the remote control screen of FIG. 9A, the control unit 73 switches the display screen 72a of the image display unit 72 to the remote control screen of FIG. 9B. On the remote control screen of (b), selection buttons B15 and B16 for selecting the type of electric device to be operated (“electric lock” or “other device”) and a setting screen are displayed below the title bar TB3. A selection button B17 for displaying is displayed.

  9A and 9B, when the user touches the selection buttons B11 to B16 corresponding to the desired electrical device, the control unit 73 is based on the touch operation signal acquired from the image display unit 72. Then, an image is displayed on a screen (see FIGS. 10A and 10B) for displaying the operation / stop state of the electric device corresponding to the touch-operated selection buttons B11 to B16 and controlling the operation / stop state. The display screen 72a of the unit 72 is shifted. Hereinafter, a case where the selection button B11 corresponding to the lighting fixture is pressed will be described.

  10 (a) and 10 (b) show screens for displaying the operation / stop state of the electrical equipment connected to each branch breaker and controlling the operation / stop state, and the screen of FIG. 10 (a). Then, below the title bar TB4 indicating the name of the screen (for example, “lighting”), the names of the three lighting fixtures connected to the individual branch breakers (for example, “living lighting”, “children's room lighting”, “dining lighting”) Characters N1 to N3, pictosigns P1 to P3 (icons) indicating the operation / stop state, and selection buttons B21 to B23 for inverting the operation / stop state are vertically moved for each lighting fixture. Are arranged side by side. Further, at the bottom of the screen, a previous page button B27 and a next page button B28 for transitioning to the previous page and the next page, and a return button B29 for returning to the screen one level higher (the screen in FIG. 9A). Is displayed. When the next page button B27 is touched on the screen of FIG. 10A, the control unit 73 switches the display screen 72a of the image display unit 72 to the screen of FIG. 10B, and FIG. ) On the lower side of the title bar TB4, letters N4 to N6 indicating names of three lighting fixtures connected to the individual branch breakers (for example, “bedroom lighting”, “kitchen lighting”, “entrance / hallway lighting”). And pictograms P4 to P6 that indicate the operation / stop state by icons and selection buttons B24 to B26 for inverting the operation / stop state are arranged side by side for each lighting fixture.

  As described above, on the screens of FIGS. 10 (a) and 10 (b), it is possible to monitor the operation / stop state of the electrical equipment Xmn (for example, lighting equipment in this screen) connected to the branch breaker Bmn for each branch breaker Bmn. The display function of the operation / stop state will be described below.

  The electric device Xmn is not only a device that consumes zero power when stopped, such as a lighting fixture, but also a device that generates standby power even when stopped, such as a television or an air conditioner, or a refrigerator. There are things that are always working without. Therefore, even when the electric device Xmn is in a stopped state, a branch current may flow through the branch breaker Bmn to which the electric device Xmn is connected. Therefore, for each branch breaker Bmn, the power supply of the electric device connected to the branch breaker Sets the branch current in the stop state with the switch turned off (hereinafter referred to as the stop-state branch current). In addition, when the branch breaker Bmn is connected to the outlet in the room Rn, various electric devices may be connected to the outlet. Therefore, the branch current when the branch circuit is stopped is the stop state of the electric device. The sum of the standby current consumed by the electric current and the operating current of an electric device such as a refrigerator that does not normally stop.

  Therefore, in the terminal device TU, by operating a setting screen (not shown), the branch current setting image at the time of the setting target branch breaker Bmn is displayed, and the power switch of the electric device connected to the target branch breaker Bmn is turned on. When the setting button displayed on the screen is touch-operated in a state where it is turned off (except that it is always in an operating state such as a refrigerator), the control unit 73 of the terminal device TU receives energy management from the transmission / reception unit 71. The unit 2 is caused to transmit a setting request message for setting a branch current when the branch breaker Bmn to be set is stopped. At this time, when the control unit 2c of the energy management unit 2 receives the stop branch current setting request message via the integrated device TM, the stop electricity quantity setting unit 2d detects the branch current of the branch breaker Bmn to be set. A value is acquired via the calculation unit 2b, and the branch current detection value is set as a branch current when the branch breaker Bmn is stopped (amount of electricity used when stopped). This process is performed for all branch breakers Bmn, and a stop-time branch current is set for each branch breaker Bmn.

  Once the stop-time branch current is once set in the stop-time electric quantity setting unit 2d, the stop-time branch current is updated by executing the processing described below. The stop electricity quantity setting unit 2d sequentially compares the branch current detection value of the branch breaker Bmn to be set with the current stop branch current, and if the branch current detection value is smaller than the stop branch current, Set the branch current detection value at this time as the branch current at stop, and if the branch current detection value is equal to or greater than the branch current at stop, the current branch current will remain at the current stop. Can be set to any value.

  Then, the operation / stop determination unit 2e of the control unit 2c acquires the branch current detection value for each branch breaker Bmn via the calculation unit 2b, and detects the branch current detection value of each branch breaker Bmn and the branch breaker. One or more electrical devices Xmn connected to the branch breaker Bmn when the difference between the Bmn stop current and the branch current detected value is subtracted from the branch current detection value is equal to or greater than a certain value. If the difference obtained by subtracting the steady branch current value from the branch current detection value is smaller than a certain value, it is determined that the electrical device Xmn connected to the branch breaker is in the stopped state.

  Here, when the control unit 73 of the terminal device TU transmits, from the transmission / reception unit 71 to the energy management unit 2, a monitor request message for the operation / stop state of the electrical equipment connected to each branch breaker Bmn, the monitor request message Is received by the control unit 2c of the energy management unit 2 through the integrated device TM, and based on the information on the electrical equipment connected to each branch breaker Bmn and the determination result of the operation / stop determination unit 2e, Create and integrate display screen image data that displays at least the characters N1... For displaying the name and installation location of the electrical equipment for each branch breaker Bmn, and the pictogram P1 for indicating the operating / stopped state of each electrical equipment. It transmits toward the terminal device TU which has transmitted the monitor request via the device TM. Then, in the terminal device TU that has transmitted the monitor request, the transmission / reception unit receives the image data, and the control unit 73 displays the received image data on the image display unit 72, and the image displayed on the display screen 72a (see FIG. 10 (a) and 10 (b)), it is possible to monitor the operation / stop state of the electrical equipment.

  Thus, in this embodiment, since the operation / stop state of the electrical equipment connected to each branch breaker Bmn in the terminal device TU is indicated by pictograms P1 to P6, the electricity connected to each branch breaker Bmn is displayed. It is possible to easily grasp visually whether the device is operating or stopped. Further, when a touch operation is performed on the selection buttons B21 to B26 displayed corresponding to each electric device on the monitor screen, the control unit 73 of the terminal device TU operates / operates the electric device corresponding to the operated selection button. A control command for inverting the stop state is transmitted from the transmission / reception unit 71 to the control unit 2c via the integrated device TM. At this time, the control unit 2c receives the control signal from the terminal device TU, and reverses the operation / stop state of the corresponding electric device Xmn by the electric device controller C1 based on the received control signal (operation → stop or stop) The operation / stop of the desired electrical device Xmn can be easily switched by simply touching the selection buttons B21 to B26 displayed on the terminal device TU.

  Further, in the present embodiment, when displaying the operation / stop state of the electrical equipment Xmn connected to each branch breaker Bmn in the terminal device TU, the control unit 73 as group setting means also provides registration information of each branch breaker Bmn. In addition, the electric devices Xmn connected to each branch breaker Bmn are grouped into a plurality of groups according to their types (for example, lighting fixtures and remote controllers), and the electric devices connected to the branch breakers Bmn belonging to each group Since the operation / stop state of the device Xmn is displayed on the display screen using an icon, the operation states of the plurality of electric devices Xmn can be easily grasped for each group. In the above example, the branch breakers Bmn are grouped according to the type of the electric device Xmn. However, the control unit 73 is provided with the electric devices Xmn connected to the branch breakers Bmn. It may be grouped for each floor of a building, or may be grouped for each room in which the electric device Xmn is installed.

  In the present embodiment, the selection buttons B21 to B26 for inverting the operation / stop state of the electric device Xmn are displayed on the monitor screen for monitoring the operation / stop state of the electric device Xmn in the terminal device TU, and the selection buttons B21 to B21 are displayed. The operation / stop of the corresponding electric device Xmn is switched according to the touch operation of B26, but only the icon indicating the operation / stop state of the electric device Xmn is displayed on the monitor screen, and this icon is touched. When operated, the control unit 73 switches the display screen 72a of the image display unit 72 to a control command input screen (not shown) for inputting a control command for controlling the electrical device corresponding to the selected icon. Alternatively, a desired electrical device can be controlled by inputting a control command on the control command input screen. Here, an operation button for controlling the operation of the corresponding electric device Xmn is displayed on the control command input screen. When the operation button corresponding to the desired operation is touch-operated, the control unit 73 is operated. A control command corresponding to the operation button is transmitted from the transmission / reception unit 71 to the control unit 2c, and the control unit 2c controls the operation of the corresponding electrical device Xmn via the controller C1.

  In addition, on the display screen (see FIGS. 10A and 10B) for displaying the operation / stop state of the electric device Xmn connected to each branch breaker Bmn, an icon for displaying the operation / stop state of the electric device Xmn (see FIG. When the touch operation is performed on the pictosign P1..., The control unit 73 serving as an information request unit based on the touch operation signal input from the image display unit 72 performs information (for example, the amount of electricity used) of the electrical device Xmn corresponding to the operated icon. Etc.) is transmitted from the transmitting / receiving unit 71 to the energy management unit 2. When the control unit 2c of the energy management unit 2 receives the information request signal from the terminal device TU, the control unit 2c acquires the information on the electricity usage of the corresponding branch breaker Bmn from the calculation unit 2b, and transmits the acquired information to the request signal. When the transmission / reception unit 71 of the terminal device TU receives the information returned from the energy management unit 2, the control unit 73 displays the display screen of the image display unit 72 of the electric device Xmn. By switching to a screen for displaying information and displaying the information on the electric device Xmn, the user can be presented with information on the desired electric device Xmn.

It is a block diagram which shows each structure of the power monitoring system of this 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. (A) (b) is an example figure of a display screen of a terminal unit same as the above. (A) (b) is an example figure of a display screen of a terminal unit same as the above. (A) (b) is an example figure of a display screen of a terminal unit same as the above. It is a block diagram of a terminal device same as the above.

Explanation of symbols

2 Energy management unit 2b Calculation unit (Power consumption measurement unit)
2c Control unit 2d Electricity setting unit at stop 2e Operation / stop determination unit TU terminal device CTmn Branch current detection unit (power consumption measuring unit)
CV display control device PC PC PT Mobile terminal Bs Main breaker Bmn Branch breaker Lpmn Electric circuit (branch circuit)
Xmn electrical equipment

Claims (6)

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 A power consumption measuring unit that measures the power consumption, a control unit that generates information based on the electricity usage for each branch breaker measured by the power consumption measuring unit, and a terminal device that exchanges information with the control unit With
The control unit sets the measured electricity usage measured by the power consumption measurement unit in the stopped state of the electrical equipment connected to each branch breaker to the electricity consumption during stop of the branch breaker. A setting means, and an operation / stop determination means for determining an operation / stop state of an electrical device connected to the branch breaker based on a difference between the measured value of the electricity usage for each branch breaker and the electricity usage at the time of stop; Have
The terminal device acquires the determination result of the operation / stop determination unit from the control unit, and the operation / stop state of the electric device connected to each branch breaker is previously set in correspondence with the electric device connected to each branch breaker. A power monitoring system that displays on a display screen using a set icon.   Device registration for registering an electrical device that can be connected to each branch breaker according to a user's registration operation as an electrical device connected to a branch breaker to which an unspecified electrical device can be connected to the terminal device When the determination result of the operation / stop determination unit is obtained from the control unit, the operation / stop state of the electric device registered by the device registration unit is displayed on the display screen using a preset icon. The power monitoring system according to claim 1.   The terminal device includes a touch panel that displays the icon as a selection button on a screen of a display screen, and an information request signal that requests information on an electrical device corresponding to the operated icon when an icon touch operation is performed. Or an information requesting means for outputting to the screen, and when the information on the electrical device is returned from the control unit in response to the information request signal, the screen is switched to a screen for displaying the acquired information on the electrical device. 2. The power monitoring system according to 2.   The terminal device includes a touch panel that displays the icon as a selection button on a screen of a display screen, and inputs a control command for controlling an electric device corresponding to the operated icon when an icon touch operation is performed. The power monitoring system according to claim 1, wherein the control command input screen is displayed on a display screen.   The terminal device includes a touch panel on which a plurality of selection buttons are displayed corresponding to each electric device on a display screen, and when the selection button is touched, the electric device corresponding to the operated selection button A control command for reversing the operation / stop state is transmitted to the control unit, and the control unit reverses the operation / stop state of the corresponding electrical device when receiving a control signal from the terminal device. Item 3. The power monitoring system according to Item 1 or 2.   The terminal device includes group setting means for grouping each branch breaker into a plurality of groups, and for each group, using an icon, the operation / stop state of the electrical equipment connected to the branch breaker belonging to each group The power monitoring system according to claim 1, wherein the power monitoring system is displayed on a display screen.

Images