JP2008089433A - Electric power monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric power monitoring system capable of monitoring electric energy for each branch electric circuit in a house. <P>SOLUTION: This electric power monitoring system has an integrated managing panel 1 comprising a master breaker Bs, a plurality of branch breakers Bmn disposed in branch electric circuits Lpmn that branch from the secondary side of the master breaker Bs and supply electric power to an electrical apparatus Xmn, a branch current detection section CTmn for measuring, for each branch breaker Bmn, the branch current supplied via each branch breaker Bmn, an arithmetic section 2b for calculating the electric energy for each branch breaker Bmn based on each branch current measured by the branch current detection section CTmn, and a control section 2c that creates electric energy information indicating the electric energy for each branch breaker Bmn and transmits the electric energy information via a network in the house using a general-purpose communication protocol. Terminal devices such as a personal computer PC, a display control device CV, and a portable terminal PT display the electric energy for each branch breaker Bmn based on electric energy information received via the network in the house. <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 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 at a time, and the power consumption for each branch electric circuit cannot be monitored. Therefore, it is difficult for the user to specify an electric device or a room that consumes power wastefully, and it is difficult to perform a specific operation such as stopping or turning off the power in order to save energy.

  In addition, it is impossible to monitor and control the electric devices connected to each branch electric circuit, and the user individually operates / stops each electric device, powers on / off, and the like.

  This invention is made | formed in view of the said reason, The objective is to provide the electric power monitoring system which can monitor the electric energy for every branch electric circuit in a house.

  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. Measuring means for measuring the amount of electricity used for each branch breaker, calculating means for calculating the amount of power for each branch breaker based on each amount of electricity used measured by the measuring means, and power amount information representing the amount of power for each branch breaker And control means for transmitting power amount information via the home network, and a terminal device for displaying the power amount for each branch breaker based on the power amount information received via the home network, To do.

  According to the present invention, it is possible to monitor the amount of electric power for each branch electric circuit in the house, specify an electric device or a room that consumes power wastefully, and stop, turn off, power off, etc. for energy saving Specific operations can be performed.

According to a second aspect of the present invention, in the first aspect, the terminal device displays the amount of electric power corresponding to the name of the electric device connected to each branch breaker. It becomes possible to specifically recognize which electric device consumes the power of the branch breaker.

  According to a third aspect of the present invention, in the first aspect, the terminal device displays an amount of electric power corresponding to a name of a room in which one or more electric devices connected to each branch breaker are arranged. Features.

  According to the present invention, it is possible to specifically recognize whether the power amount of each branch breaker is the amount of power consumed by the electrical equipment provided in which room.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the operation of the electric device is monitored and controlled based on the monitoring request or the control request received via the home network, and the monitoring result display and the electric device A monitoring control unit having a web server function for generating monitoring control image data for control and providing the image data to the terminal device in response to a request from the terminal device, the control unit is provided for each branch breaker A branch power monitor image data as power amount information for displaying the power amount is generated, and has a web server function for providing the image data to the terminal device in response to a request from the terminal device. By selecting a display area corresponding to each branch breaker in the branch power monitor image, the monitoring control for monitoring and controlling the electrical equipment connected to the branch breaker is performed. It characterized in that it required to provide use image data.

  According to the present invention, since the monitoring control image of the electrical device connected to the branch breaker is displayed on the terminal device, for example, the monitoring result is confirmed on the monitoring control image using the browser function and each electrical device is It is possible to control, and furthermore, it is possible to monitor and control each electric device from a remote place, and it is possible to easily grasp and control the operation state of the electric device.

  According to a fifth aspect of the present invention, in the fourth aspect, the supervisory control means has name information of the electrical equipment being monitored and controlled, and the control means is a name of the electrical equipment connected to each branch breaker. If the name of the electric device used in the branch power monitor image data is generated in the name information of the monitoring control means, the electric device having the name is generated. Is associated with the name information of the monitoring control means.

  According to this invention, since the branch breaker and the name information of the monitoring control means are automatically associated with each other, manual association work (for example, registration of the monitoring control means or the terminal to which the electrical device is connected) is performed. (Registration etc.) can be omitted, and the occurrence of inoperability due to registration errors can be reduced.

  The invention of claim 6 provides the image data for branch power monitoring according to claim 4 or 5, wherein the control means is capable of discriminating a branch breaker connected to an electrical device that can be monitored and controlled by the monitoring control means. In the branch power monitor image, the terminal device selects a region corresponding to a branch breaker to which an electrical device that can be monitored and controlled by a monitoring control unit is connected, and thereby sends a monitoring request for the electrical device via a home network. To the monitoring control means.

  According to the present invention, a controllable electrical device can be clearly identified from among a plurality of electrical devices.

  In a seventh aspect of the present invention, in any one of the first to sixth aspects, when the control means receives a monitoring request via a home network, the control means is connected to each branch breaker based on the amount of power for each branch breaker. It is characterized by monitoring the on / off state of the power supply of the electric equipment.

  According to the present invention, by using the amount of power for each branch breaker, it is possible to monitor the on / off state of the power supply of the electric device without adding wiring or devices.

  According to an eighth aspect of the present invention, in any one of the fourth to seventh aspects, the terminal device selects an operation area corresponding to each branch breaker of the monitoring control image data, thereby connecting the electric device connected to the branch breaker. The control request is transmitted to the monitoring control means.

  According to this invention, it is possible to control the electrical equipment under the control of the monitoring control unit from a remote location.

  According to a ninth aspect of the present invention, in any one of the fourth to eighth aspects, the branch breaker has a remote control function for interrupting an electric circuit by an off signal transmitted from the control means via a control line, and the control means Generates breaker control image data for off control of the branch breaker, and provides the image data to the terminal device in response to a request from the terminal device. By selecting an operation area corresponding to the breaker, an off control request for the branch breaker is transmitted to the control means.

  According to the present invention, it is possible to reduce the standby current of the electrical equipment and to further save energy by performing power-off control for each branch breaker regardless of whether the electrical equipment is connected to the monitoring control means. Can do.

  The invention according to claim 10 provides the remote controller function according to any one of claims 4 to 8, wherein the branch breaker has a remote control function for cutting off the electric circuit by an off signal transmitted from the control means via the electric circuit through power line carrier communication. The control means generates breaker control image data for off control of the branch breaker, and provides image data to the terminal device in response to a request from the terminal device. By selecting an operation region corresponding to each of the branch breakers, an off control request for the branch breaker is transmitted to the control means.

  According to the present invention, it is possible to reduce the standby current of the electrical equipment and to further save energy by performing power-off control for each branch breaker regardless of whether the electrical equipment is connected to the monitoring control means. Can do.

  As described above, in the present invention, it is possible to monitor the amount of electric power for each branch electric circuit in the house, specify an electric device or room that consumes power wastefully, and stop, turn off, etc. to save energy There is an effect that a specific operation can be performed.

  Furthermore, by monitoring and controlling by the monitoring control means, or monitoring and controlling using the electric energy for each branch breaker, for example, using the browser function, the monitoring result is confirmed on the monitoring control image and each electric device is It is possible to control, and furthermore, it is possible to monitor and control each electric device from a remote place, and it is possible to easily grasp and control the operation state of the electric device.

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

(Embodiment 1)
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 has a function of detecting the amount of power supplied via each branch breaker Bmn for each branch breaker Bmn and generating image data for displaying the detected data for each branch breaker Bmn. The main current detector CTs that periodically measures the value of the main current flowing through the main circuit breaker Bs, and the main electric energy supplied via the main circuit breaker Bs are calculated by converting the main current measurement value into the electric energy. Power calculation unit 2a, branch current detection unit CTmn that periodically detects the value of the branch current flowing through each branch breaker Bmn for each branch breaker, main power amount calculated by the power calculation unit 2a, and each branch current detection The branch current measured by the unit CTmn is input, and the branch power supplied through each branch breaker Bmn is calculated based on each branch current. Comprising a calculation unit 2b, main electric power amount inputted from the operation unit 2b, on the basis of the branch power amount, and a control unit 2c for generating image data representative of the main electric power amount and the branch power.

  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. Function (web server function) for creating web content (web page) as image data (for example, branch power monitor image data) and providing (distributing) the web content to the terminal device in response to a request from the terminal device ), And an integrated device TM, an electric device controller C1, and the like in the integrated management panel 1 are connected via a LAN cable.

  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 detector CTmn. The main breaker Bs and the branch breaker Bmn provided on the branch circuit Lp (12a, 12b) branching from the main circuit 11 are shown. 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. Has a function (control monitoring function). The electric device controller C1 stores device name information and the like of the electric device Xmn under its control in advance, and web content (web page) for displaying the name and operation state of the electric device Xmn with characters and symbols. And a function (web server function) for 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 monitoring request message is transmitted to the energy management unit 2 from a terminal device such as a personal computer PC in the house, 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 monitor request via the integration device TM, the terminal that has transmitted the power monitor request to the power monitor image data generated by the control unit 2c via the integration device TM Send to device.

  In terminal devices such as personal computer PC, display control device CV, and portable terminal PT that have received image data, the image data is displayed on the monitor screen of each terminal device, and the main power amount and the branch power amount for each branch breaker Bmn are monitored. it can. FIG. 8 shows a branch power monitor image displayed on the terminal device, and the branch power amount for each branch breaker Bmn is represented by a bar graph G1. In addition to the power consumption graph display, the power amount monitor screen displays the date and time, the menu button that transitions to the menu screen, the previous page button and the rear page button that transition to the previous page and the subsequent page, and the past power amount A history button for displaying data 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.

  The electric device controller C1 stores in advance device name information of electric devices under its own monitoring control function, and the control unit 2c of the energy management unit 2 receives the device name from the terminal device when the device name is input. The device name information stored in advance by the electrical device controller C1 is acquired, and it is determined whether or not the device name information includes the same name as the device name transmitted from the terminal device. When there is the same name, the control unit 2c recognizes that the target electric device Xmn is already under the control of the electric device controller C1, and automatically associates the branch breaker Bmn with the electric device under the control of the electric device controller C1. The energy management unit 2 and the electric device controller C1 can be linked. In the present embodiment, all the electric devices Xmn connected to the branch breaker Bmn are under the electric device controller C1, and the names of all electric devices exist in the device name information.

  As described above, when the branch breaker Bmn is automatically associated with the electric device under the electric device controller C1, the amount of power supplied from the certain branch breaker Bmn exceeds a predetermined value in the energy management unit 2. In this case, the control unit 2c can instruct the controller C1 to stop the operation of the electrical device Xmn connected to the branch breaker Bmn <turn off>, and the amount of power used is determined in advance for each branch circuit. Thus, it is possible to perform control (demand control) for automatically turning off the power of the electric device when the upper limit is exceeded.

  In the present embodiment, since the branch breaker Bmn and the electric device under the electric device controller C1 are automatically associated, the labor of registration can be saved. When the user himself / herself performs the association, there is a high possibility that the registration of the electric device controller C1 or the terminal to which the electric device Xmn is connected is erroneous, particularly when the time has elapsed since the construction. As described above, the association is automatically performed at the time of inputting a name, so that the occurrence of an inoperable state due to a registration error can be reduced.

(Embodiment 2)
As shown in FIG. 10, the power monitoring system of this embodiment uses a branch breaker Brmn with a remote control breaker function, and the control unit 2c of the energy management unit 2 controls the branch breaker Brmn off via the control line Lc. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  When the control unit 2c receives the message of the power monitor request from the terminal device such as the personal computer PC, the display control device CV, and the portable terminal PT via the integrated device TM, the power monitor image data generated by the control unit 2c is It transmits toward the terminal device which transmitted the power monitor request | requirement via the integrated apparatus TM.

  In the terminal device that has received the image data, the image data is displayed on the monitor screen of each terminal device, and the main power amount and the branch power amount for each branch breaker Bmn can be monitored. FIG. 11 shows a branch power monitor image. The branch power amount corresponding to each device name or room name is represented by a bar graph G2 as in the first embodiment (FIG. 9). Among the device name and room name, a red frame around the name so that the remote controllable electrical device or the name of the room where the remote controllable electrical device is installed can be easily recognized on the monitor screen. Surrounded by W. When the user depresses one of the red frame regions W, a message for requesting monitoring of the electrical device Xmn or room Rn corresponding to the selected red frame region W is transmitted from the terminal device to the energy management unit 2. .

  When receiving the monitoring request via the integrated device TM, the control unit 2c of the energy management unit 2 performs the following processing.

  First, the electrical device controller C1 stores in advance device name information of electrical devices under its monitoring control function, and the control unit 2c includes the device name information in the electrical device controller C1 as in the first embodiment. Then, it is determined whether or not there is the same name as the name of the electric device Xmn that is the monitoring target, and if there is the same name, the control unit 2c has already placed the electric device Xmn to be monitored under the electric device controller C1. Recognizing that it is present, the image data for monitoring control generated by the electric device controller C1 based on the operating state of the electric device is transmitted to the terminal device that has transmitted the monitoring request via the integrated device TM.

  The terminal device that has received the monitoring control image data from the electric device controller C1 displays the monitoring control image generated by the electric device controller C1 as shown in FIG. In this monitoring control image, the operation states (operation <lighting> or stop <lighting off>) of a plurality of electric devices including the electric device Xmn to be monitored are displayed in the state display area M2.

  Furthermore, in the monitoring control image of FIG. 12, an operation area M3 for each electric device is displayed. When this operation area M3 is selected, a message for requesting control of the target electric device Xmn 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 is controlled to switch between operation (lighting for the lighting fixture) and stop (lighting off for the lighting fixture). . The electrical device controller C1 of the present embodiment has an interface function between the integrated device TM and the electrical device Xmn conforming to the unified standard of the Japan Electrical Manufacturers' Association (JEMA), and has received a control request message from the terminal device. Sometimes each electric device Xmn is individually controlled to switch between operation (lighting for lighting fixtures) and stopping (lighting off for lighting fixtures), and a monitoring request message is received from the terminal device via the integrated device TM Sometimes the operating state of each electric device Xmn (running <lighting> or stopping <lighting off>) is acquired individually, and a response message to the control request or monitoring request (the operating state of each electric device Xmn) is transmitted as a request message It has a function (control monitoring function) that transmits to the original terminal device via the integrated device TM.

  On the other hand, when the device name of the electrical device Xmn that is the monitoring target is not included in the device name information of the electrical device controller C1, or when the monitoring target is the room Rn, the control unit 2c performs the monitoring target electrical device Xmn or the room Rn. The power on / off state of the electric device Xmn is monitored based on the branch current detection value of the branch breaker Brmn corresponding to. In this monitoring method, for example, in the control unit 2c, the branch current value history of each branch breaker Brmn is individually stored, and the minimum value of each branch current is the current consumption when the electrical device is in the stop <light-off> state ( The steady current consumption for each branch breaker Brmn is stored as needed. When the branch current value of each branch breaker Brmn is larger than the steady consumption current by a certain value or more, the electrical device connected to the branch breaker Brmn is in the power-on state, and the detected branch current value is less than the steady consumption current. In this case, it is determined that the electrical device connected to the branch breaker Brmn is in a power-off state.

  Then, the control unit 2c generates a monitoring result of the monitoring target electric device Xmn or the room Rn as monitoring control image data (breaker control image data), and monitors the monitoring control image data via the integrated device TM. It transmits toward the terminal device which transmitted the request.

  The terminal device that has received the monitoring control image data from the energy management unit 2 displays the monitoring control image configured in substantially the same way as in FIG. 12, and the power on / off state of the electrical device Xmn or room Rn to be monitored Is displayed, and the operation area of the electric device Xmn or room Rn to be monitored is also displayed. When this operation area is pressed when the operation state is operation <lighting>, the off control of the electric device Xmn or room Rn is performed. A request message is transmitted from the terminal device to the energy management unit 2. In the energy management unit 2, when the control unit 2c receives the off control request via the integrated device TM, the control circuit Lc is connected to the branch breaker Brmn corresponding to the electric device Xmn or the room Rn to be controlled. Outputs an off signal. The branch breaker Brmn that has received the off signal performs a tripping operation to cut off the electric circuit, and turns off the electric device Xmn to be controlled or the electric device in the room Rn. In this way, for the electrical equipment that is not under the control of the electrical equipment controller C1, the branch breaker Brmn is operated by remote control to turn off the power, so that the standby current of the electrical equipment can be reduced and further energy saving can be achieved. . Moreover, if the branch breaker Brmn that can be turned off by power line carrier communication is used as the remote control breaker function, the controller 2c can turn off the branch breaker Brmn by superimposing an off signal on the electric circuit (not shown). Since the line Lc is not necessary, the configuration can be simplified.

  As described above, in this embodiment, the operation state of the electric device Xmn by the electric device controller C1 is used using the terminal device such as the personal computer PC, the display control device CV, and the portable terminal PT without going to the side of the actual electric device. By monitoring and controlling the power on / off state of the electrical device Xmn using the branch power amount for each branch breaker Bmn, it is possible to monitor and control the electrical devices in the house. Improved.

  If the power monitoring system of the present invention is incorporated in a home equipment monitoring control system that controls and monitors a home equipment such as a security device via a home network and the Internet, the system can be unified.

It is a block diagram which shows each structure of the electric power monitoring system of Embodiment 1. 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 power monitors for every branch breaker same as the above. It is a top view which shows the image for branch electric power monitors for every electric equipment name same as the above. It is a block diagram which shows each structure of the electric power monitoring system of Embodiment 2. It is a top view which shows the image for branch electric power monitors for every electric equipment name same as the above. It is a top view which shows the image for monitoring control same as the above.

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 TM Integrated device C1 Electric equipment controller PC, CV, PT Terminal device Xmn Electric equipment

Claims (10)

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 measuring means for measuring the power consumption, a calculating means for calculating the electric energy for each branch breaker based on each electric consumption measured by the measuring means, and generating the electric energy information representing the electric energy for each branch breaker. A power monitoring system comprising: control means for transmitting power amount information through a terminal device; and a terminal device for displaying the power amount for each branch breaker based on the power amount information received through the home network. The power monitoring system according to claim 1, wherein the terminal device displays an amount of power corresponding to the name of the electrical device connected to each branch breaker. 2. The power monitoring system according to claim 1, wherein the terminal device displays an amount of electric power corresponding to a name of a room in which one or more electric devices connected to each branch breaker are arranged. The terminal device monitors and controls the operation of the electric device based on the monitoring request or control request received via the home network, generates monitoring control image data for displaying the monitoring result and controlling the electric device, and the terminal device Comprising a monitoring control means having a web server function for providing image data to a terminal device in response to a request from
The control means has a web server function for generating branch power monitor image data as power amount information for displaying a power amount for each branch breaker and providing the image data to the terminal device in response to a request from the terminal device. Have
The terminal device requests the provision of monitoring control image data for monitoring and controlling an electric device connected to the branch breaker by selecting a display area corresponding to each branch breaker of the displayed branch power monitor image. The power monitoring system according to any one of claims 1 to 3. The monitoring control means has name information of the electrical equipment being monitored and controlled,
The control means generates branch power monitor image data representing the amount of electric power corresponding to the name of the electric device connected to each branch breaker, and the name of the electric device used in the branch power monitor image data is monitored. 5. The power monitoring system according to claim 4, wherein when present in the name information of the control means, the branch breaker connected to the electric device having the name is associated with the name information of the monitoring control means. The control means generates branch power monitor image data so that a branch breaker to which an electrical device that can be monitored and controlled by the monitoring control means is connected can be identified,
In the branch power monitor image, the terminal device selects a region corresponding to a branch breaker to which an electrical device that can be monitored and controlled by a monitoring control unit is connected, and thereby sends a monitoring request for the electrical device via a home network. The power monitoring system according to claim 4 or 5, wherein the power is transmitted to the monitoring control means. The control means, when receiving a monitoring request via a home network, monitors the on / off state of the power supply of the electrical equipment connected to each branch breaker based on the amount of power for each branch breaker. The power monitoring system according to any one of claims 1 to 6. The terminal device selects an operation area corresponding to each branch breaker of the monitoring control image data, and transmits a control request for an electrical device connected to the branch breaker to the monitoring control unit. The power monitoring system according to claim 4. The branch breaker has a remote control function for cutting off the electric circuit by an off signal transmitted from the control means via a control line,
The control means generates breaker control image data for off-control of the branch breaker, and provides the image data to the terminal device in response to a request from the terminal device;
9. The terminal device according to claim 4, wherein the terminal device transmits an off control request for the branch breaker to the control unit by selecting an operation area corresponding to each branch breaker of the breaker control image. Power monitoring system. The branch breaker has a remote control function for cutting off the electric circuit by an off signal transmitted by the power line carrier communication through the electric circuit from the control means,
The control means generates breaker control image data for off-control of the branch breaker, and provides the image data to the terminal device in response to a request from the terminal device;
9. The terminal device according to claim 4, wherein the terminal device transmits an off control request for the branch breaker to the control unit by selecting an operation area corresponding to each branch breaker of the breaker control image. Power monitoring system.

Images