JP2008092681A - Power monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power monitoring system, with which a user can compare the electric power consumption in a user's house with that in other family houses, to grasp the tendency of the electric power consumption in the user's house, thereby facilitating to obtain an indicator of actions for attaining energy saving. <P>SOLUTION: A center server SV is designed to collect the electric power consumption information in each dwelling unit and in each electric device Xmn from the energy management devices 2 in each dwelling unit and to distribute the electric power consumption information in each dwelling unit collected through a wide network such as internet to an internet terminal as a monitor terminal. The internet terminal displays an image, which allows the user to compare the electric power consumption in the user's house with that in the other dwelling units by the web content distributed from the center server SV. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a power monitoring system for managing the amount of electricity used in a dwelling unit.

  Conventionally, the monthly amount of commercial power consumed in each home (dwelling unit) 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. In addition, this system compares it with the power consumption (electricity consumption) of other homes. You can also. (For example, refer to Patent Document 1).
Japanese Patent No. 3551302 (paragraph 0013, FIG. 1)

  Usually, in the home, the main electric circuit is branched into a plurality of branch power paths via branch breakers in the distribution board, and various electric devices are connected to each branch power path. For example, one branch power path is allocated to a plurality of electric devices (a plurality of lighting fixtures) installed in one room, and recently, one electric device (an air conditioner (air conditioner), a floor heater, an IH device) Etc.) is assigned one branch power path.

  However, in the system of Patent Document 1, the amount of electricity used in each home is monitored at once, but the amount of power consumed for each branch power path cannot be monitored.

  Therefore, in the system of Patent Document 1, although the collective power consumption (electric consumption) can be compared with other households and the trend of power consumption as a whole can be grasped, in order to save energy It has not been possible to determine which branch power path should be used to suppress the power consumption of the electrical equipment connected to it.

  The present invention has been made in view of the above-described points. The object of the present invention is to compare the amount of electricity used at home with the amount of electricity used at other homes, thereby It is an object of the present invention to provide a power monitoring system that can grasp a trend of usage and easily obtain an action index for energy saving.

  In the invention of the power monitoring system of claim 1, a center server provided on a wide area network, an energy management device provided in each dwelling unit and connected to the center server via the wide area network, and corresponding to each dwelling unit The energy management device is configured to measure the amount of electricity used for each branch power path branched from the main power path via the branch breaker, and to determine the amount of electricity used for each branch power path. It comprises information sending means for sending the measurement result to the center server as the electricity usage information of the electric equipment connected to each branch power path, and the center server receives each electric power in each dwelling unit from the energy management device of each dwelling unit. Electricity usage information of each dwelling unit collected through the wide area network as well as collecting electricity usage information An information collection and distribution means for distributing the information to the monitor terminal, said monitor terminal is characterized by comprising display means for displaying the electricity usage information of each electric appliance to be distributed from the center server.

  According to the power monitoring system of the first aspect, the user can grasp the electric usage of each electric appliance in another dwelling unit in addition to the electric usage of each electric appliance at home by displaying on the monitor terminal. Electricity to be used when taking action to save energy by grasping the trend of electricity usage at home by comparing the electricity usage of each electrical equipment with the electricity usage of each electrical equipment of other dwelling units It becomes easy to decide the equipment.

  In the invention of the power monitoring system of claim 2, in the invention of claim 1, each dwelling unit is grouped in advance by area, and the center server provides the electricity usage information distributed to the monitor terminal to the dwelling unit of the user of the monitor terminal. The electricity usage information of the main power path into which the main circuit breaker is inserted in the dwelling unit of the area to which it belongs, or the electricity usage information of the electric equipment for each branch power path is used.

  According to the invention of the power monitoring system of claim 2, the total amount of electricity used in the home, the amount of electricity used in the electrical equipment in each branch power path, the total amount of electricity used in other dwelling units, and the electrical equipment in each branch power path Comparison with electricity consumption can be made in consideration of regional characteristics such as weather and lifestyle such as temperature and rainfall, so that more accurate comparison is possible.

  In the invention of the power monitoring system of claim 3, in the invention of claim 1 or 2, the center server has information on the family structure of each dwelling unit, and information on the amount of electricity used by each electrical device distributed to the monitor terminal The power usage information of the main power path into which the main circuit breaker is inserted in the dwelling unit of the same family structure as the family structure of the user of the monitor terminal or the electric usage information of the electric equipment for each branch power path And

  According to the invention of the power monitoring system of claim 3, the total amount of electricity used in the home, the amount of electricity used in the electrical equipment in each branch power path, the total amount of electricity used in other dwelling units, and the electrical equipment in each branch power path Comparison with the amount of electricity used can be made in consideration of the family structure such as the number of households and the age structure, so that a more accurate comparison is possible.

  According to a power monitoring system of a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the center server has information on the building structure of each dwelling unit and the center server distributes the information to each monitor terminal. Information on the amount of electricity used in the device, information on the amount of electricity used in the main power path with the main breaker inserted in the same building structure as the building structure of the user of the monitor terminal, or the electric power of the electric device for each branch power path It is characterized by use amount information.

  According to the invention of the power monitoring system of claim 4, the amount of electricity used in the entire house, the amount of electricity used in the electrical equipment in each branch power path, the total amount of electricity used in other dwelling units, and the electrical equipment in each branch power path Compared with the amount of electricity used, it is possible to take into account building structures such as apartment houses, detached houses, and even heat insulation structures, so that a more accurate comparison is possible.

  In the invention of the power monitoring system of claim 5, in any of claims 1 to 4, the measuring means corresponding to the branch power path is provided in a branch breaker corresponding to the branch power path. It is characterized by being.

  According to the invention of the power monitoring system of the fifth aspect, the measuring means can be arranged in the distribution board without specially securing the arrangement space for the measuring means, and the distribution board is not enlarged. .

  According to a sixth aspect of the power monitoring system of the present invention, in any one of the first to fifth aspects of the present invention, the energy management device can identify the name of the electrical device connected to the branch power path or the identification information of each branch power path. Means for inputting the name of the installation location or both names is provided, and the identification information is added to the electricity usage information for each branch power path, and the information is sent to the center server.

  In the invention of the management system according to the sixth aspect, it is possible to grasp the amount of electricity used by an electric device by a specific name or installation location, and the amount of electricity used by an electric device at home and the electricity of another dwelling unit. The efficiency of home electric appliances can also be grasped by comparing with the amount used.

  According to the power monitoring system of the present invention, according to the power monitoring system of the first aspect, the user monitors the electrical usage of each electrical device in another dwelling unit in addition to the electrical usage of each electrical device at home. It is possible to grasp the trend of electricity usage at home by comparing the electricity usage of each electrical device at home and the electricity usage of each electrical device at other dwelling units. There is an effect that it becomes easy to determine a target electric device when taking an action to be taken.

    Hereinafter, the present invention will be described in detail according to an embodiment.

  As shown in FIG. 2, the power monitoring system using the energy management apparatus 2 of the present embodiment includes an integrated management panel 1 installed in a detached house or a dwelling unit of an apartment house, and a branch power path Lp for supplying commercial power. And the lighting equipment and the air conditioner (air conditioner) that are connected to the integrated management panel 1 through the information transmission path Li (enhanced category 5 or category 6 LAN cable). , Floor heating appliances, IH devices, etc., a plurality of electrical devices Xmn (m = 1, 2,..., N = 1, 2,...) And the integrated management panel 1 via the LAN cable Li A plurality (two in the illustrated example) of connected net terminals (personal computers (hereinafter referred to as personal computers) equipped with a web browser function) and nets equipped with a web browser function A network terminal such as a display control device such as a display control device CV, etc., and a network in which the integrated management panel 1 and the network terminal use general-purpose communication protocols (TCP / IP, UDP, HTTP, etc.) It is composed.

  This dwelling unit network is a local area network (LAN) compliant with, for example, the 100BASE-TX (IEEE 802.3u) standard, and an integrated device TM described later corresponding to a layer 2 switch or a layer 3 switch in the integrated management panel 1. In addition, a net terminal (a personal computer PC and a display control device CV) and the like are connected by star wiring.

  The integrated device TM has an Internet connection function corresponding to the type of line (telephone line, CATV line, optical fiber line, etc.) for connecting to the Internet, and the dwelling unit network connects to the Internet as an external wide area network. Is done.

  A center server SV installed in a remote place away from the dwelling unit is connected to the dwelling unit network through the Internet. As will be described later, a laptop PC, a mobile phone, a PDA (Personal Digital Assistance) that can be connected to the Internet. ), Etc., by performing data communication via the Internet between the network terminal (mobile terminal PT), which is a portable monitor terminal having a web browser function, and the center server SV, Control and monitoring can be performed.

  The center server SV is composed of a general-purpose computer device having a network function, collects information on the amount of electricity used, which will be described later, sent from the integrated management panel 1 of each dwelling unit, and collects information on the amount of electricity used. A function as an information collection / delivery means for delivering to a net terminal such as a mobile terminal PT owned by a user corresponding to a net terminal installed in each dwelling unit or a user corresponding to the dwelling unit through a website constructed by a web server function described later And a web server function for relaying messages sent to the integrated management board 1 through the Internet and messages sent from the integrated management board 1 to network terminals not belonging to the residential network. However, since the portable terminal PT and the center server SV having the Internet connection function as described above are well known in the art, the detailed illustration and description thereof are omitted.

  The integrated management panel 1 has both a function as a distribution board and a function as a housing information panel. As shown in FIG. 1, the main breaker that receives commercial power supplied from the outside to the dwelling unit on the primary side. Bs, a plurality of branch breakers Bmn inserted in a power path branched from the secondary side of the main breaker 1, an energy management device 2, an integrated device TM, and an electric device controller C1.

  Each branch power path 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 device 2 detects the amount of electricity used in the entire dwelling unit, detects the amount of electricity used in each electrical device Xmn via each branch breaker Bmn, and branches the detection data. A main current / voltage detection that has a web server function for generating web contents (web pages) to be displayed for each breaker Bmn (branch power path Lpmn) and periodically measures the value of the main current flowing through the main breaker Bs. Section CTV, power calculation section 2a for calculating the power of the entire dwelling unit (main power) supplied from the main current / voltage via the main breaker Bs, and the branch breaker Bmn for the value of the branch current flowing through each branch breaker Bmn The branch current detection unit CTmn that is detected every time, and the information on the main power calculated by the power calculation unit 2a, and the entire dwelling unit A process of calculating and integrating the electric energy (hereinafter referred to as the main electric energy) at a constant time interval is performed, and the branch current value measured by each branch current detector CTmn is input, and each branch current value and the branch power path Lpmn are input. Based on the power factor information of the electrical equipment connected to the power supply and the voltage of the branch power path Lpmn, the amount of power supplied from each branch power path Lpmn to the electrical equipment (hereinafter referred to as branch power amount) is associated with each branch breaker Bmn. Calculation unit 2b that performs calculation and integration at regular time intervals, and stores and holds the main power amount and the integrated value of each branch power amount as main electricity use amount and branch electricity use history information, and input from the operation unit 2b Based on the information on the main power and branch power, the web content representing the main power (and main power usage) and the branch power (and branch power usage), and the notification described later And a control unit 2c for generating an E blanking content. The main power usage may be obtained by the calculation unit 2b from the total of the branch electricity usage.

  The control unit 2c uses the data of the branch breaker Bmn for detecting the electric energy (the name of the electric device Xmn connected to the branch power path Lpmn corresponding to the branch breaker Bmn, the name of the installation location, and the name of the branch breaker itself, for example, 1, branch 2,...) Are stored in advance, and web content is created as image data (for example, image data for branch power monitor) for displaying the main power amount and the branch power amount. A function (web server function) for providing (distributing) the web content to a network terminal in response to a request from the terminal, for example, information on the main electricity usage for each hour and each branch electricity usage is integrated into the center server SV. It has a function as information transmission means for transmitting via the device TM. In addition, when transmitting the information on each branch electricity use amount to the center server SV, the information on the name of the electric device Xmn and the name of the installation location corresponding to the branch electricity use amount is added. Moreover, since the name of the electric equipment Xmn and the information of the name of an installation place need to be common in each dwelling unit at the time of the classification | category mentioned later, the name with high use frequency is prepared as a standard. Of course, it cannot be used for classification, but the user may be able to set an arbitrary name.

  In addition to the network terminal and the integrated device TM, an electrical device controller C1 and the like are connected to the LAN cable.

  In the dwelling unit, a plurality of rooms Rn (n = 1, 2,...) Such as a living room, a bedroom, and a child room are provided. In FIGS. 1 and 2, for example, three rooms R1, R2, and R3 are provided. As provided, the electrical device provided in the room R1 is referred to as X1n, the electrical device provided in the room R2 is referred to as X2n, and the electrical device provided in the room R3 is referred to as X3n (n = 1, 2,...).

  Here, in general, branch power paths Lpmn are wired according to usage and room to fixed equipment such as air conditioners and floor heaters, power outlets, lighting fixtures, etc. during construction, and branch breakers corresponding to the branch power paths Lpmn In Bmn, which room corresponds to which application is uniquely determined.

  For example, the branch breaker B1n (n = 1, 2,...) In the integrated management panel 1 is connected to the electric device X1n in the room R1 or the power outlet circuit via the branch power path Lp1n (n = 1, 2,...). The power is individually supplied in 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 branch power path Lp3n (n = 1, 2,...). In addition, the branch breaker B20 supplies power to the electrical circuit for the power outlet individually in a 1: 1 correspondence. Similarly, the branch breaker B20 is connected to the electrical equipment X2n in the room R2 and the electrical circuit for the power outlet via the branch power path Lp20. Power is supplied collectively in response.

  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. 3 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. 4, 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. 4, the sensor S11 is a current sensor having a Rogowski coil composed of the coil line 20 formed on the printed circuit board 7, and outputs a differential form of the current as a detection output. The coil line 20 is formed on a pattern 21 a (shown by a solid line in FIG. 4) formed on the surface of the printed circuit board 7 through a through hole 7 b around the insertion hole 7 a of the printed circuit board 7 and on the back surface of the printed circuit board 7. And a coil portion 21 formed by connecting a pattern 21b (shown by a dotted line in FIG. 4). Furthermore, the end of the coil part 21 is connected to one end side of the return line 22 (shown by a one-dot broken line in FIG. 4) via the through hole 7c, and the other end side of the return line 22 is the end of the coil part 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. 3, the transmission path 6 connects the sensor unit Amn to the measurement control unit Ka using three lines of 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. 5 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. 5, 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. 6 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.

  The integrated device TM shown in FIG. 1 is connected to a control unit 2c in the panel, an electric device controller C1, a personal computer PC outside the panel, and a display control device CV via a LAN cable, and a center server SV or a mobile phone through the Internet. Connected to the telephone MP or other network terminal, it has packet processing function, path switching function, network security function, UPnP (Universal Plug and Play) control point function, etc. I control the giving and receiving.

  The electric device controller C1 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 has received a control request message from the network terminal via the integrated device TM. Sometimes each electric device Xmn is individually controlled via the control cable Lj to switch between operation (lighting for lighting fixtures) and stop (lighting off for lighting fixtures) and monitoring from the network terminal via the integrated device TM When the request message is received, the operation state (operation <lighting> or stop <lighting>) of each electric device Xmn is individually acquired via the control cable Lj, and a response to each control request or monitoring request (each electric device) Xmn (operating state) message is sent to the network terminal that is the source of the request message via the integrated device TM (control supervision) Visual function).

  In addition, the electric device controller C1 stores in advance the device name, installation location information, etc. of the electric device Xmn under its control, and displays web contents for displaying the name and operating state of the electric device Xmn in characters and symbols. It also has a function (web server function) that creates and provides (distributes) the web content to the network terminal in response to a request from the network terminal.

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

  In network terminals such as personal computers PC, display control devices CV, and portable terminals PT that have received image data, the image data is displayed on the monitor screen of each network terminal, and the main power and the branch power for each branch breaker Bmn are monitored. it can. FIG. 7 shows a branch power monitor image displayed on the network terminal, and the branch power amount for each branch breaker Bmn is represented by a bar graph G1. In addition to the power graph display, the power 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 user can monitor the amount of power supplied for each branch breaker Bmn at any time using the network terminal, it is possible to identify the branch power system that is wasting power consumption, and the user can specify Energy saving can be easily achieved by performing specific operations such as stopping and turning off the electrical device Xmn connected to the branched power system.

  On the other hand, the control unit 2c of the energy management apparatus 2 transmits the information on the main electricity usage and the branch electricity usage for each hour to the center server SV via the integrated device TM as described above. The SV obtains information sent from each dwelling unit, for example, classifies dwelling unit information for each preset area, and adds the branch electricity usage amount sent to the branch electricity usage amount information. Each branch electricity usage is further classified according to the name of the electrical equipment corresponding to the name and the name of the installation location. The center server SV also performs statistical processing such as an average value, a maximum value, and a minimum value for each branch electricity usage amount at the same time. In addition, the area classification of each dwelling unit in the center server SV is performed by the prefecture or the name of the municipality, and such area information is registered by the user himself / herself in the center server SV from a network terminal, for example. Of course, the service company managing the center server SV may register with the service company when making a contract with the user.

  The center server SV creates monitor image data by the web server function based on the classified result, and distributes the created monitor image data in response to an information request from the network terminal as the monitor terminal. It has become.

  In this case, the network terminal accesses and logs in to the URL of the website constructed by the center server SC. From the information selection page displayed by the login, the user's home area and the amount of electricity used to know are If you want to know the main electricity usage, and if you want to know the branch electricity usage, select the name and location of the target electrical device from the monitor screen, the web content consisting of monitor image data corresponding to this selection will be sent to the center server It will be distributed from the SV, and it will be possible to know the status of electricity usage of other dwelling units.

  FIG. 8 is a line graph showing an average temporal transition of the branching electricity consumption when the region is “ΔΔ prefecture”, the name of the electric device Xmn is “air conditioner”, and the installation location is “child room”. The monitor image which displays the transition of the said electricity usage of the said user's house with the bar graph is shown. When the “return” button BT1 is operated, the information selection page is returned to and another electricity usage amount information can be selected.

  Thus, the user can monitor the electricity usage status of other dwelling units in the same area with the net terminal and compare it with the electricity usage at home, which enables the weather and lifestyle such as temperature and rainfall, Can grasp the tendency that the electricity consumption at home is prominent compared to other dwelling units compared to the electricity consumption of other dwelling units with common local characteristics (prefectures, municipalities) such as local industries. Even if it is determined that the user has used too much, an index for taking action for energy saving can be easily obtained from comparison with the electricity consumption of other dwelling units, and the awareness can be improved. Furthermore, since the branch electricity usage is displayed by the name of the electric device Xmn or the name of the installation location, it is easy to determine which electric device Xmn is used to save energy. In addition, by comparing the amount of electricity used by other household electrical devices Xmn with the amount of electricity used by home electrical devices Xmn, it is possible to grasp the efficiency of home electrical devices Xmn. It is possible to change settings and study model changes.

  In addition to classifying by region, it may be classified by family structure such as the number of households and age structure so that it can be compared with the amount of electricity used by other units in the same family structure.

  In this case, a comparison between the amount of electricity used at home and the amount of electricity used by other dwelling units can be made in consideration of the family composition such as the number of households and age composition. This family structure classification may or may not be combined with the regional classification.

  Further, the building structure of the dwelling unit, that is, the apartment house, the detached house, the heat insulating structure, etc., may be classified so that it can be compared with the electricity consumption of other dwelling units of the same building structure.

It is a block diagram which shows each structure of the electric power monitoring system of one Embodiment. It is a system diagram which shows a structure 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 display example figure in the network terminal of the image for power monitors from the center server same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Integrated management board 2 Energy management apparatus Bs Master breaker Bm Branch breaker CTV Main current / voltage detection part CTmn Branch current detection part 2a Electric power calculation part 2b Operation part 2c Control part TM Integrated apparatus C1 Electric equipment controller PC Personal computer CV Display control device PT Mobile terminal Xmn Electric equipment SV Center server

Claims (6)

A center server provided on a wide area network, an energy management device provided in each dwelling unit and connected to the center server via the wide area network, and a monitor terminal corresponding to each dwelling unit,
The energy management device includes a measuring unit that measures the amount of electricity used for each branch power path branched from the main power path via a branch breaker, and the measurement result of the amount of electricity used for each branch power path for each branch power path. Comprising information sending means for sending to the center server as electricity usage information of the electrical equipment connected to
The center server collects the electricity usage information of each electrical device in each residence from the energy management device of each residence, and uses the monitor terminal to collect the electrical usage information of each electrical device in each residence collected through the wide area network. It has information collection and delivery means to deliver,
The power monitoring system, wherein the monitor terminal includes display means for displaying information on the amount of electricity used by each electrical device distributed from the center server. Each residential unit is grouped by region in advance, and the center server uses the power usage information distributed to the monitor terminal, and the power usage of the main power path in which the main breaker is inserted in the local unit to which the user unit of the monitor terminal belongs 2. The power monitoring system according to claim 1, wherein the power monitoring system is quantity information or electricity usage information of an electric device for each branch power path. The center server has information on the family structure of each dwelling unit, and the power usage information distributed to the monitor terminal is inserted into a main breaker in a dwelling unit having the same family structure as that of the user of the monitor terminal. The power monitoring system according to claim 1, wherein the power monitoring system uses the power usage information of the power path or the power usage information of the electrical equipment for each branch power path. The center server has information on the building structure of each dwelling unit, and the center server has information on the amount of electricity used to be distributed to the monitor terminal. The power monitoring system according to any one of claims 1 to 3, wherein the power monitoring system uses power usage information of a main power path into which a breaker is inserted or power usage information of electrical equipment for each branch power path. The power monitoring system according to any one of claims 1 to 4, wherein the measuring unit corresponding to the branch power path is provided in a branch breaker corresponding to the branch power path. . The energy management device includes means for inputting a name of an electrical device connected to the branch power path, a name of an installation location, or both names as identification information of each branch power path. The power monitoring system according to any one of claims 1 to 5, wherein the identification information is added to usage information and the information is transmitted to the center server.

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