JP5058188B2

JP5058188B2 - Power measuring device

Info

Publication number: JP5058188B2
Application number: JP2009027503A
Authority: JP
Inventors: 利康樋熊; 正明矢部; 正裕石原; 紀之久代
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2009-02-09
Filing date: 2009-02-09
Publication date: 2012-10-24
Anticipated expiration: 2029-02-09
Also published as: JP2010181378A

Description

本発明は被測定電路における電力又は電流を計測するための電力計測装置及び被測定電路において電力供給を受けて動作する電気機器を制御する機器制御装置に関するものである。 The present invention relates to a power measuring device for measuring power or current in a circuit under measurement and a device control device for controlling an electric device that operates by receiving power supply in the circuit under measurement.

家庭用電化製品（以下、電気機器という）等が消費する電力を計測するための電力計測装置を専門業者による工事により取り付ける際、電流計測のためのセンサと電圧計測するための電圧変換用トランスとを被計測対象の電路（電力線）に取り付けていた。ここで、例えば、閉磁路を構成する電流センサ部と先端が鋭利な形状の導電性電圧検出部と一体化した検出部を取り付けるようにすることで工事を簡易にすることができるようにしたものもある（例えば特許文献１参照）。 When installing a power measuring device for measuring the power consumed by household appliances (hereinafter referred to as electrical equipment) by a specialist contractor, a current measuring sensor and a voltage converting transformer for measuring voltage Was attached to the circuit (power line) to be measured. Here, for example, the current sensor part constituting the closed magnetic circuit and the detection part integrated with the conductive voltage detection part having a sharp tip can be attached to simplify the construction. (For example, refer to Patent Document 1).

特開２００５−１３４２３３号公報JP 2005-134233 A

上述の特許文献１では、電力線に取り付ける検出部を、電圧検出及び電流検出とで一体化して工事の簡易化を図っている。しかし、例えば検出部以外にも、電力計測動作を行う電力計測装置本体への電力供給、検出した値を得るためのインターフェイス手段（Ｉ／Ｆ手段）等の構成により、誤配線の防止等をはかり、電力計測装置等の設置をさらに容易にし、工事の簡易化等をはかることができる。 In the above-mentioned Patent Document 1, the detection unit attached to the power line is integrated by voltage detection and current detection to simplify the construction. However, for example, in addition to the detection unit, the power supply to the power measurement device main body that performs the power measurement operation, the configuration of the interface means (I / F means) for obtaining the detected value, and the like, prevent miswiring. In addition, installation of a power measuring device and the like can be further facilitated, and construction can be simplified.

そこで、本発明は、工事を簡易化等することができるような構成等にした電力計測装置、電力計測に係る電気機器を制御するための機器制御装置を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a power measuring device having a configuration that can simplify construction and the like, and a device control device for controlling an electric device related to power measurement.

本発明の電力計測装置は、以上に示した課題を解決するためになされたものであり、電力計測対象となる電力線における電流を計測するために、電力線を挟み込んで取り付けるためのクランプ型の電流トランスと、電流トランスのクランプ内壁面に形成され、電力線を覆う被覆部を介し、静電結合により電力線に係る電圧を非接触で計測するための電極と、電力線に取り付けた電流トランスを流れる電流を検出する電流検出部と、電力線に取り付けた電極によって電圧を検出する電圧検出部と、電流検出部が検出した電流値及び電圧検出部が検出した電圧値に基づいて、電力線における電力を算出する制御部と、電力に係るデータを含む信号を無線通信するための通信部と、電力線に流れる電流に基づいて電力を生成する電源生成部と、電源生成部の生成に係る電力を充電し、動作を行うための電力供給を行う充電部と、充電部の電力供給状態を監視し、制御部に電力計測動作の開始又は停止の指示を行う監視部と、時刻の計時を行う計時手段と、制御部の処理に係るデータを記憶する記憶手段とを備え、制御部は、監視部から停止を指示されると、停止に係る時刻のデータと電力を積算した電力量のデータとを関連付けて記憶手段に記憶させて処理を停止し、監視部から開始を指示されると、開始に係る時刻と停止に係る時刻との差から停止時間及び停止時間の電力線における推定の電力量を算出し、推定の電力量を電力量に加算する処理を行う。 The power measuring device of the present invention has been made to solve the above-described problems, and is a clamp-type current transformer for sandwiching and mounting the power line in order to measure the current in the power line to be measured. And an electrode for non-contact measurement of the voltage related to the power line by electrostatic coupling, and a current flowing through the current transformer attached to the power line is detected through a covering portion that covers the power line and is formed on the inner wall of the current transformer A current detection unit that detects voltage by an electrode attached to the power line, and a control unit that calculates power in the power line based on the current value detected by the current detection unit and the voltage value detected by the voltage detection unit When a communication unit for wirelessly communicating the signal including data relating to power, and a power generation unit generating power on the basis of the current flowing through the power line, the power A charging unit that charges power related to the generation of the generator and supplies power for performing the operation, and a monitoring unit that monitors the power supply state of the charging unit and instructs the control unit to start or stop the power measurement operation And a time measuring means for measuring time and a storage means for storing data relating to the processing of the control unit, and when the control unit is instructed to stop, the control unit obtains time data and power related to the stop. When the start is instructed by the monitoring unit, the stop time and the stop time are calculated based on the difference between the start time and the stop time. A process of calculating the estimated power amount in the power line and adding the estimated power amount to the power amount is performed.

本発明によれば、電極を電力線１の被覆部分を介して各線に取り付けて静電結合させて電圧を検出するようにしたので、取り付け時に、直接、電線と電気的に接触させず、電力線に対して加工等を行って損傷させることなく、電力計測に必要な手段（素子）を取り付けることが可能である。このため、設置作業を容易にし、安全・簡単な設置工事を行うことができる。このとき、電流計測用の電流トランスの内周面に、電極を一体化し、電力線に取り付けられるようにすることで、さらに工事を簡易化することができる。また、電流計測を行うための電流トランスをクランプ型とすることで、電力線に容易に取り付けを行うことができる。また、通信部により、電力計測の結果のデータを、無線通信により送信できるようにしたので、外部の機器にデータを出力するための信号送信に必要な配線を設けなくてもよい。そのため、誤配線等をなくすことができる。これらのことから、より安全で、工事を簡易化することができる。また、逆に取替（廃棄）の際の回収等の工事も簡易化することができる電力計測装置を得ることができる。 According to the present invention, the electrode is attached to each line through the covering portion of the power line 1 and electrostatically coupled to detect the voltage. Therefore, when the electrode is attached, the electrode is not directly brought into electrical contact with the power line. On the other hand, it is possible to attach means (elements) necessary for power measurement without damaging the workpiece by processing or the like. For this reason, installation work can be facilitated, and safe and simple installation work can be performed. At this time, the construction can be further simplified by integrating the electrodes on the inner peripheral surface of the current transformer for current measurement and attaching the electrodes to the power line. In addition, since the current transformer for measuring current is a clamp type, it can be easily attached to the power line. In addition, since the data of the power measurement result can be transmitted by wireless communication by the communication unit, it is not necessary to provide wiring necessary for signal transmission for outputting data to an external device. Therefore, miswiring and the like can be eliminated. From these things, it is safer and construction can be simplified. In contrast, it is possible to obtain a power measuring device that can simplify the construction such as recovery during replacement (disposal).

実施の形態１における電力線１に取り付けた電力計測装置の構成図である。1 is a configuration diagram of a power measurement device attached to a power line 1 in Embodiment 1. FIG. 電流トランスの構成を示す図である。It is a figure which shows the structure of a current transformer. 電圧検出部１０における電圧検出の原理を示す図である。3 is a diagram illustrating the principle of voltage detection in the voltage detection unit 10. FIG. 実施の形態２における電力線１に取り付けた電力計測装置の構成図である。6 is a configuration diagram of a power measurement device attached to a power line 1 in Embodiment 2. FIG. 実施の形態３における電力線１に取り付けた機器制御装置の構成図である。6 is a configuration diagram of a device control device attached to a power line 1 in Embodiment 3. FIG. 実施の形態３における機器制御システムの構成例を示す図である。FIG. 10 is a diagram illustrating a configuration example of a device control system in a third embodiment. 実施の形態４における電力線１に取り付けた機器制御装置の構成図である。FIG. 10 is a configuration diagram of a device control device attached to a power line 1 in a fourth embodiment. 実施の形態５における電力線１に取り付けた機器制御装置の構成図である。FIG. 10 is a configuration diagram of a device control device attached to a power line 1 in a fifth embodiment. 実施の形態５における機器制御システムの構成例を示す図である。FIG. 10 is a diagram illustrating a configuration example of a device control system in a fifth embodiment. 実施の形態６における電力線１に取り付けた機器制御装置の構成図である。FIG. 10 is a configuration diagram of a device control device attached to a power line 1 in a sixth embodiment.

実施の形態１．
図１は本発明の実施の形態１における電力線１に取り付けた電力計測装置の構成図である。図１において、電力線１は、ここではＬ１線、Ｌ２線及びＮ線（中性線）を有する一般家庭用の単相３線式電力線を想定して説明する。電力線１のＬ１線には第１の電流トランス２（以降ＣＴ（１）２と略す）を、Ｌ２線には第２の電流トランス３（以降ＣＴ（２）３と略す）を、Ｎ線には第３の電流トランス４（以降ＣＴ（３）４と略す）を取り付ける。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a power measuring device attached to a power line 1 according to Embodiment 1 of the present invention. In FIG. 1, the power line 1 is described here assuming a single-phase three-wire power line for general homes having an L1 line, an L2 line, and an N line (neutral line). The first current transformer 2 (hereinafter abbreviated as CT (1) 2) is used for the L1 line of the power line 1, the second current transformer 3 (hereinafter abbreviated as CT (2) 3) is used for the L2 line, and the N line. Attaches a third current transformer 4 (hereinafter abbreviated as CT (3) 4).

図２は電流トランスの構成を示す図である。ＣＴ（１）〜ＣＴ（３）は図２に示すような分割・クランプ型のコアで構成されている。そして、コアの内面（内壁）には金属板等で構成された電極を配置している。この電極は、後述するように、Ｌ１−Ｎ線間（以下、Ｌ１−Ｎという）、Ｌ２−Ｎ線間（以下、Ｌ２−Ｎという）の電圧を計測するためのものである。ここで、電極は電磁誘導（以下、誘導という）による短絡電流が流れないようにするため、環状の片端を開放し、Ｃの形状となるようにしている。図１に示した電力線１のＬ１線に並行して置かれた電極７は、ここではＣＴ（１）２の内壁に配置されている。同様に、電力線１のＬ２線に並行して置かれた電極５はＣＴ（２）３の内壁に配置されている。また、電力線１のＮ線に並行して置かれた電極６はＣＴ（３）４の内壁に配置されている。 FIG. 2 is a diagram showing the configuration of the current transformer. CT (1) to CT (3) are constituted by split / clamp type cores as shown in FIG. And the electrode comprised with the metal plate etc. is arrange | positioned at the inner surface (inner wall) of the core. As will be described later, this electrode is for measuring the voltage between the L1-N lines (hereinafter referred to as L1-N) and between the L2-N lines (hereinafter referred to as L2-N). Here, in order to prevent a short-circuit current due to electromagnetic induction (hereinafter referred to as induction) from flowing through the electrode, one end of the annular shape is opened so as to have a C shape. The electrode 7 placed in parallel with the L1 line of the power line 1 shown in FIG. 1 is arranged on the inner wall of the CT (1) 2 here. Similarly, the electrode 5 placed in parallel with the L2 line of the power line 1 is disposed on the inner wall of the CT (2) 3. Further, the electrode 6 placed in parallel with the N line of the power line 1 is arranged on the inner wall of the CT (3) 4.

電源生成部９は、電力線１からの電力供給に基づき、電力計測装置の各部（手段）を動作させる電源となる電力を変換生成する。電力供給を受けるため、本実施の形態では、Ｎ線に取り付けたＣＴ（３）４と接続している。そして、Ｌ１−Ｎ及びＬ２−Ｎにおいて消費される電力の差異分に比例してＮ線に流れる電流に基づいてＣＴ（３）４の誘導により得られる交流電力を、整流安定化等を行って直流電力に変換する。この電力に基づき、２次電池、スーパーキャパシタ等を有する充電部１１に電荷を充電させる。これにより、充電部１１を介して、電圧検出部１０、電流検出部８、制御部１３等の各部が動作するために必要な電力供給を行う。 Based on the power supply from the power line 1, the power generation unit 9 converts and generates power that is a power source for operating each unit (means) of the power measurement device. In order to receive electric power supply, in this Embodiment, it connects with CT (3) 4 attached to the N line. The AC power obtained by the induction of CT (3) 4 based on the current flowing through the N line in proportion to the difference in power consumed in L1-N and L2-N is subjected to rectification stabilization and the like. Convert to DC power. Based on this electric power, the charge part 11 which has a secondary battery, a super capacitor, etc. is made to charge an electric charge. Thereby, the power supply required for each part, such as the voltage detection part 10, the current detection part 8, and the control part 13, to operate, is performed via the charging part 11.

電圧監視部１２は、充電部１１が供給する電力に係る電圧を検出し、検出した電圧に応じて、制御部１３に稼動／停止を指示する信号を送信する監視処理を行う。また、電流検出部８はＬ１線に取り付けたＣＴ（１）２とＬ２線に取り付けたＣＴ（２）３と接続している。Ｌ１−Ｎ及びＬ２−Ｎにおいて各々流れる電流に比例した電圧に基づいて電流を検出し、各々の電流値をデータとして含む信号を制御部１３に送信する。そして、電圧検出部１０はＬ１線に取り付けたＣＴ（１）２の電極７、Ｌ２線に取り付けたＣＴ（２）３の電極５及びＮ線に取り付けたＣＴ（３）４の電極６と接続している。Ｌ１−Ｎ及びＬ２−Ｎにおける電圧を検出し、各々の電圧値をデータとして含む信号を制御部１３に送信する。 The voltage monitoring unit 12 detects a voltage related to the power supplied by the charging unit 11 and performs a monitoring process of transmitting a signal instructing operation / stop to the control unit 13 according to the detected voltage. The current detection unit 8 is connected to CT (1) 2 attached to the L1 line and CT (2) 3 attached to the L2 line. A current is detected based on a voltage proportional to the current flowing in each of L1-N and L2-N, and a signal including each current value as data is transmitted to the control unit 13. The voltage detector 10 is connected to the electrode 7 of CT (1) 2 attached to the L1 line, the electrode 5 of CT (2) 3 attached to the L2 line, and the electrode 6 of CT (3) 4 attached to the N line. is doing. Voltages at L1-N and L2-N are detected, and a signal including each voltage value as data is transmitted to the control unit 13.

制御部１３は、例えばマイクロコンピュータ等のようなデータ処理手段で構成している。制御部１３は、電力計測装置を構成する各部、各手段の制御等を行う。本実施の形態では、特に電圧検出部１０及び電流検出部８から送信される信号に含まれる電圧値、電流値のデータに基づいて、電力線１のＬ１−Ｎ及びＬ２−Ｎにおける電圧と電流とを各々演算し、電気機器の消費に係る電力を算出する。また、電力を所定時間分積算した電力量を算出する。そして、計時手段１４が生成した時刻のデータを読み込み、電力量と時刻との関連付け処理、電圧監視部１２の監視処理に基づく稼働、停止に係る時刻設定の処理等を行う。 The control unit 13 is composed of data processing means such as a microcomputer. The control part 13 controls each part and each means which comprise an electric power measurement apparatus. In the present embodiment, in particular, the voltage and current at L1-N and L2-N of power line 1 based on the voltage value and current value data included in the signals transmitted from voltage detection unit 10 and current detection unit 8 Are calculated to calculate the power related to the consumption of the electrical equipment. In addition, the amount of power obtained by integrating the power for a predetermined time is calculated. Then, the time data generated by the time measuring unit 14 is read, and the process of associating the electric energy with the time, the operation based on the monitoring process of the voltage monitoring unit 12, the process of setting the time related to the stop, and the like are performed.

計時手段１４は計時を行い、時刻のデータを生成する手段である。ここで、計時手段１４は電池等でバックアップされており、電力計測装置が動作を停止しても計時を行うことができる。記憶手段となる不揮発メモリ１５は、制御部１３が処理等を行うために必要なデータ、処理により得られたデータ等を記録しておき、処理に基づいて制御部１３にデータを読み出される。例えば本実施の形態では、電力計測動作を停止している間の電力量を算出するために必要となる電圧の平均値、電圧と電流の平均位相差のデータ等を記録する。 The time measuring means 14 is a means for measuring time and generating time data. Here, the time measuring means 14 is backed up by a battery or the like, and can measure time even when the power measuring device stops operating. The nonvolatile memory 15 serving as a storage unit stores data necessary for the control unit 13 to perform processing, data obtained by the processing, and the like, and the data is read to the control unit 13 based on the processing. For example, in the present embodiment, the average value of voltage necessary for calculating the amount of power while the power measurement operation is stopped, the data of the average phase difference between voltage and current, and the like are recorded.

通信部１６は、電力線１から電力供給を受けている電気機器等を含む、装置外の機器と信号通信（送受信）できる機能を有している。例えば制御部１３が算出した電力量のデータ等を含む信号を装置外の機器に対して送信する。通信方法については有線又は無線により行うことができる。ここでは電力線以外の線を用いる必要がないことから、誤配線等を防ぐために無線通信を行うものとする。有線で外部の装置と通信接続する場合には、例えば、ＵＳＢ（Universal Serial Bus）、ＲＳ２３２（Recommended Standard 232）−Ｃ等のインターフェースの種類は問わない。また、ＬＡＮ（Local Area Network）等のネットワーク、アナログ信号等の信号等についても種類は問わない。 The communication unit 16 has a function capable of performing signal communication (transmission / reception) with devices outside the apparatus including electric devices that are supplied with power from the power line 1. For example, a signal including data on the amount of power calculated by the control unit 13 is transmitted to a device outside the apparatus. The communication method can be performed by wire or wireless. Here, since it is not necessary to use a line other than the power line, wireless communication is performed in order to prevent erroneous wiring and the like. In the case of communication connection with an external device by wire, for example, the type of interface such as USB (Universal Serial Bus), RS232 (Recommended Standard 232) -C, etc. does not matter. Also, the type of network such as a LAN (Local Area Network), a signal such as an analog signal, etc. is not limited.

図３は電圧検出部１０による電圧検出の原理を示すための図である。ここでは説明のため電力線１のＬ１−Ｎにおける電圧検出について説明するが、Ｌ２−Ｎにおける電圧検出についても同様である。ＣＴ（１）２、ＣＴ（３）４をＬ１線、Ｎ線に取り付けることにより、電極７、６は、各々被覆（絶縁体）を介してＬ１線、Ｎ線と並行に配置される。このため、Ｌ１線の導体（電線）と電極７、Ｎ線と電極６とで静電結合することになる。ここで、Ｌ１線とＮ線の間には商用周波数の交流電圧が印加されており、ある瞬時には＋Ｖ、−Ｖ、すなわち２Ｖの電位差が生じている。このため、抵抗Ｒを介して電極７、６間を電気的に接続すると、２Ｖ／Ｒに比例した電流が流れる。この電流、あるいは電流により生じる電圧降下を検出することで、電圧検出部１０はＬ１−Ｎの電圧を検出することができる。 FIG. 3 is a diagram for illustrating the principle of voltage detection by the voltage detector 10. Although voltage detection at L1-N of the power line 1 will be described here for the sake of explanation, the same applies to voltage detection at L2-N. By attaching CT (1) 2 and CT (3) 4 to the L1 line and the N line, the electrodes 7 and 6 are arranged in parallel to the L1 line and the N line, respectively, via a covering (insulator). For this reason, the L1 line conductor (electric wire) and the electrode 7 and the N line and the electrode 6 are electrostatically coupled. Here, an AC voltage of commercial frequency is applied between the L1 line and the N line, and a potential difference of + V, −V, that is, 2V is generated at a certain moment. For this reason, when the electrodes 7 and 6 are electrically connected via the resistor R, a current proportional to 2 V / R flows. By detecting this current or a voltage drop caused by the current, the voltage detection unit 10 can detect the voltage of L1-N.

以上のような電力計測装置における電力計測動作について説明する。まず、電力線１に接続された電気機器が動作を開始し、電力を消費し始めると、Ｌ１−Ｎ及びＬ２−Ｎにおいて消費される電力の差異分に比例してＮ線に電流が流れる。流れる電流に基づいてＣＴ（３）４の誘導により得られる交流電力を、電源生成部９が整流安定化等を行って、所定の直流電圧の電力に変換する。この電力により充電部１１の二次電池に充電を行い、蓄積させ、電力計測装置の他の回路部分を動作させるための電源とする。そして、電圧監視部１２は充電部１１の充電に基づく電圧値が所定の第１の電圧に達したものと判断すると、制御部１３に稼働指示の信号を送信する。 The power measurement operation in the power measurement apparatus as described above will be described. First, when an electric device connected to the power line 1 starts to operate and consumes power, a current flows through the N line in proportion to the difference in power consumed in the L1-N and L2-N. The AC power obtained by the induction of CT (3) 4 based on the flowing current is converted into power of a predetermined DC voltage by the power generation unit 9 performing rectification stabilization and the like. This power is used to charge and store the secondary battery of the charging unit 11 to serve as a power source for operating other circuit portions of the power measuring device. When the voltage monitoring unit 12 determines that the voltage value based on the charging of the charging unit 11 has reached the predetermined first voltage, the voltage monitoring unit 12 transmits an operation instruction signal to the control unit 13.

制御部１３は稼働指示の信号を受信すると電力計測に係る処理を行う。充電部１１の電圧が所定の電圧以上にある場合は、制御部１３は、上述した原理により電圧検出部１０が検出した電力線１のＬ１−Ｎ及びＬ２−Ｎにおける電圧値のデータを含む信号を受ける。また、電流検出部８が検出したＬ１−Ｎ及びＬ２−Ｎにおいて各々流れる電流値のデータを含む信号を受ける。そして、これらの電圧値のデータ、電流値のデータに基づいて、電力線１を流れ、電気機器で消費されている電力を算出し、所定の時間分積算した電力量を算出する。そして、所定の時間間隔で、通信部１６に電力量のデータを含む信号を無線等の手段を用いてコントローラ等の外部の装置に送信させる。また、制御部１３は、電圧の平均値、電圧と電流の平均位相差等の算出等の処理を行い、所定の期間分のこれらのデータを不揮発メモリ１５に記録させる。 When receiving the operation instruction signal, the control unit 13 performs processing related to power measurement. When the voltage of the charging unit 11 is equal to or higher than the predetermined voltage, the control unit 13 outputs a signal including voltage value data at L1-N and L2-N of the power line 1 detected by the voltage detection unit 10 according to the principle described above. receive. In addition, a signal including data of current values flowing in L1-N and L2-N detected by the current detection unit 8 is received. Then, based on these voltage value data and current value data, the power consumed by the electrical equipment is calculated through the power line 1, and the amount of power integrated for a predetermined time is calculated. Then, at a predetermined time interval, the communication unit 16 is caused to transmit a signal including power amount data to an external device such as a controller using wireless means. In addition, the control unit 13 performs processing such as calculation of an average value of voltage, an average phase difference between voltage and current, and the like, and records these data for a predetermined period in the nonvolatile memory 15.

一方、動作する電気機器の数が減る等により、電力線１を流れる電流が少なくなると、電力計測装置が消費する電力よりも、電源生成部９を介して充電部１１に充電される電力のほうが少なくなる。この状況が継続すると、充電部１１が蓄積する電荷が少なくなっていき、充電部１１から供給できる電力が低下し、充電に基づく電圧が低下してゆく。電圧監視部１２は、充電部１１の充電に基づく電圧値が、所定の第２の電圧値以下になったものと判断すると、制御部１３に停止指示の信号を送信する。停止指示の信号を受信した制御部１３は、通信部１６に、電力計測動作を停止する旨の信号及びそのときの計測に係る電力量のデータを含む信号を外部の装置に対して送信させる。また、計時手段１４が生成した時刻のデータを読み込み、不揮発メモリ１５に現在の時刻を記録させて処理を停止する。 On the other hand, if the current flowing through the power line 1 decreases due to a decrease in the number of electric devices that operate, the power charged in the charging unit 11 via the power generation unit 9 is less than the power consumed by the power measurement device. Become. If this situation continues, the charge stored in the charging unit 11 decreases, the power that can be supplied from the charging unit 11 decreases, and the voltage based on charging decreases. When the voltage monitoring unit 12 determines that the voltage value based on the charging of the charging unit 11 is equal to or lower than the predetermined second voltage value, the voltage monitoring unit 12 transmits a stop instruction signal to the control unit 13. Receiving the stop instruction signal, the control unit 13 causes the communication unit 16 to transmit a signal indicating that the power measurement operation is stopped and a signal including data on the amount of power related to the measurement to the external device. Further, the time data generated by the time measuring means 14 is read, the current time is recorded in the nonvolatile memory 15, and the processing is stopped.

再び、動作する電気機器の数が増え、電力線１に流れる電流が多くなると、電源生成部９に誘導される電流が多くなり、電源生成部９が生成する電力が増加し、充電部１１の充電に基づく電圧が所定の電圧に達する。電圧監視部１２は充電部１１の充電に基づく電圧が所定の電圧に達したものと判断すると、制御部１３に稼働指示の信号を送信する。 Again, when the number of operating electrical devices increases and the current flowing through the power line 1 increases, the current induced in the power generation unit 9 increases, the power generated by the power generation unit 9 increases, and the charging unit 11 is charged. The voltage based on reaches a predetermined voltage. When the voltage monitoring unit 12 determines that the voltage based on the charging of the charging unit 11 has reached a predetermined voltage, the voltage monitoring unit 12 transmits an operation instruction signal to the control unit 13.

制御部１３は稼働指示の信号を受信すると、制御部１３は計時手段１４が生成した時刻のデータを読み込み、処理を停止した際に不揮発メモリ１５に記録した時刻のデータとの差を算出する。これが電力計測装置が停止していた時間（以下、停止中時間という）となる。 When the control unit 13 receives the operation instruction signal, the control unit 13 reads the time data generated by the time measuring means 14 and calculates the difference from the time data recorded in the nonvolatile memory 15 when the process is stopped. This is the time during which the power measuring device has been stopped (hereinafter referred to as “stopped time”).

そして、上述した第１の電圧値と第２の電圧値との差分となる電圧分を得るために、充電部１１に充電しなければならない電力の総量を、不揮発メモリ１５に記憶した平均電圧値のデータと電圧及び電流の平均位相差のデータとに基づいて補正して算出する。さらに、算出した停止中時間で除した値を、停止期間中の電力量として補完して電力量に積算する。そして、上述した電力計測処理を開始する。 And the average voltage value which memorize | stored the total amount of the electric power which should be charged to the charging part 11 in the non-volatile memory 15 in order to obtain the voltage part used as the difference of the 1st voltage value mentioned above and a 2nd voltage value And the average phase difference data of voltage and current are corrected and calculated. Further, the value divided by the calculated stoppage time is complemented as the amount of power during the stop period and integrated into the power amount. And the electric power measurement process mentioned above is started.

以上のように、実施の形態１の電力計測装置によれば、電極５、６及び７を電力線１の被覆部分を介して各線に取り付けて静電結合させて電圧検出部１０により電圧を検出するようにしたので、取り付け時に、直接、電線と電気的に接触させず、電力線１に対して加工等を行って損傷させることなく、電力計測に必要な手段（素子）を取り付けることが可能である。このため、設置作業を容易にし、安全・簡単な設置工事を行うことができる。また、逆に取替（廃棄）等を行う場合において、電力計測装置を回収等する際の工事も簡易化することができる。そして、電力計測装置を動作させるための電源（電力）を、クランプ型のＣＴ（３）４を用いて、誘導により電力線１から供給を受けるようにしたので、取り付けを簡素にすることができ、電源を確保するための作業を容易に行うことができ、さらに工事の簡易化をはかることができる。このとき、電流計測用、電源確保のためのＣＴ（１）２、ＣＴ（２）３及びＣＴ（３）４の内周面に、電圧計測用の金属板の電極５、６及び７を設けることで一体化し、取り付けられるようにしたので、さらに工事を簡易化することができる。また、電流計測を行うためのＣＴ（１）２、ＣＴ（２）３もクランプ型とすることで、電力線１に容易に取り付けを行うことができる。 As described above, according to the power measuring device of the first embodiment, the electrodes 5, 6 and 7 are attached to the respective lines via the covering portion of the power line 1 and electrostatically coupled, and the voltage is detected by the voltage detection unit 10. Since it was made to do, it is possible to attach a means (element) required for electric power measurement, without making an electric contact directly with an electric wire at the time of attachment, without processing and damaging the electric power line 1 etc. . For this reason, installation work can be facilitated, and safe and simple installation work can be performed. On the contrary, when replacing (disposing) or the like, it is possible to simplify the work for collecting the power measuring device. And since the power source (power) for operating the power measuring device is supplied from the power line 1 by induction using the clamp-type CT (3) 4, the installation can be simplified, The work for securing the power supply can be easily performed, and the construction can be simplified. At this time, electrodes 5, 6 and 7 for voltage measurement metal plates are provided on the inner peripheral surfaces of CT (1) 2, CT (2) 3 and CT (3) 4 for current measurement and for securing a power source. Since it is integrated and attached, it can further simplify the construction. Moreover, CT (1) 2 and CT (2) 3 for measuring current can also be easily attached to the power line 1 by using the clamp type.

また、通信部１６により、電力量のデータを、無線通信により送信できるようにしたので、外部の機器に電力量データを出力するための信号送信に必要な配線を設けなくてもよい。そのため、誤配線等をなくすことができる。また、電力線１から電力供給を受けるようにしたことで、例えば、電力線１から電力計測装置の動作に必要な電力が得られず、動作を停止せざるを得ない場合も、制御部１３が停止する時刻のデータと電力量のデータとを不揮発メモリ１５に記憶しておき、動作開始時に停止中の電力量を推定補完して積算を行うようにしたので、計測精度を極端に悪化することのない電力計測装置を得ることができる。また、電力計測を特に行わう必要がないときには動作を停止させるようにしたので、省エネルギーをはかり、これにより環境負荷低減をはかることができる。 In addition, since the power amount data can be transmitted by wireless communication by the communication unit 16, it is not necessary to provide wiring necessary for signal transmission for outputting the power amount data to an external device. Therefore, miswiring and the like can be eliminated. In addition, since the power supply is received from the power line 1, for example, when the power required for the operation of the power measuring device cannot be obtained from the power line 1 and the operation must be stopped, the control unit 13 is stopped. Since the time data to be performed and the power amount data are stored in the non-volatile memory 15 and the power amount being stopped at the start of operation is estimated and complemented to perform integration, the measurement accuracy may be extremely deteriorated. No power measuring device can be obtained. In addition, since the operation is stopped when it is not necessary to perform power measurement, it is possible to save energy and reduce the environmental load.

実施の形態２．
図４は本発明の実施の形態２における電力線１に取り付けた電力計測装置の構成図である。図４において、図１と同じ番号を付している手段等については、実施の形態１で説明したことと同様の機能を有し、動作、処理等を行う。上述の実施の形態１の電力計測装置では、ＣＴ（３）４をＮ線と接続し、Ｎ線に流れる電流に基づいて誘導による電力供給を受けるようにしていた。 Embodiment 2. FIG.
FIG. 4 is a configuration diagram of a power measuring device attached to the power line 1 in Embodiment 2 of the present invention. In FIG. 4, the means and the like that have the same numbers as those in FIG. 1 have the same functions as those described in the first embodiment, and perform operations, processes, and the like. In the power measuring apparatus of the first embodiment described above, CT (3) 4 is connected to the N line, and power is supplied by induction based on the current flowing through the N line.

図４に示すように、実施の形態２では、ＣＴ（３）４を介して電力供給を受けるのではなく、ＣＴ（１）２及びＣＴ（２）３と電流検出部８との間を接続する接続線を分岐する。そして、電力計測装置は、消費される電力に比例してＬ１−Ｎ及びＬ２−Ｎに流れる電流から誘導により得られる交流電力を受けるようにしている。ここで、ＣＴ（３）４は取り付けないものの、電圧検出部１０が電圧を検出するため、Ｎ線には電極６を取り付けるようにする。 As shown in FIG. 4, in the second embodiment, power is not supplied via CT (3) 4, but CT (1) 2 and CT (2) 3 are connected to the current detection unit 8. Branch the connecting line. And the electric power measuring device is made to receive alternating current power obtained by induction from the electric current which flows into L1-N and L2-N in proportion to the electric power consumed. Here, although CT (3) 4 is not attached, the electrode 6 is attached to the N line because the voltage detector 10 detects the voltage.

以上のような電力計測装置における電力計測動作について説明する。まず、電力線１に接続された電気機器が動作を開始し、電力を消費し始めると、Ｌ１−Ｎ及びＬ２−Ｎにおいて消費される電力に比例した電流が流れる。流れる電流に基づいてＣＴ（１）２、ＣＴ（２）３の誘導により得られる交流電力を、電源生成部９が整流安定化等を行って、所定の直流電圧の電力に変換する。直流電圧によって供給される電力により充電部１１の二次電池に充電を行い、蓄積させ、電力計測装置の他の回路部分を動作させるための電源とする。以降の処理については、上述した実施の形態１の電力計測装置の電力計測動作と同様である。 The power measurement operation in the power measurement apparatus as described above will be described. First, when the electric device connected to the power line 1 starts to operate and consumes power, a current proportional to the power consumed in L1-N and L2-N flows. Based on the flowing current, the AC power obtained by the induction of CT (1) 2 and CT (2) 3 is converted into power of a predetermined DC voltage by the power generation unit 9 performing rectification stabilization and the like. The secondary battery of the charging unit 11 is charged with electric power supplied by the DC voltage and accumulated, and used as a power source for operating other circuit portions of the power measuring device. The subsequent processing is the same as the power measurement operation of the power measurement device of the first embodiment described above.

以上のように、実施の形態２の電力計測装置によれば、クランプ型のＣＴ（１）２及びＣＴ（２）３並びに電極５、６及び７を用いて取り付けを行うようにしたので、電力線１を加工等することなく、容易に取り付けを行い、工事の簡易化をはかることができる。また、電力計測に用いる電流検出において得られる電力に基づいて、電源生成部９が電源となる電力を変換生成するようにしたので、実施の形態１のように電力確保のための素子を設ける必要なく、電力計測装置が電力計測動作に必要となる電力を電力線１から受けることができる。 As described above, according to the power measurement apparatus of the second embodiment, the clamp-type CT (1) 2 and CT (2) 3 and the electrodes 5, 6 and 7 are used for attachment. 1 can be easily attached without processing or the like, and the construction can be simplified. In addition, since the power generation unit 9 converts and generates power as the power source based on the power obtained in the current detection used for power measurement, it is necessary to provide an element for securing power as in the first embodiment. In addition, the power measuring device can receive the power required for the power measuring operation from the power line 1.

実施の形態３．
図５は本発明の実施の形態３における電力線１に取り付けた機器制御装置の構成図である。図５において、図１等と同じ番号を付している手段等については、実施の形態１等で説明したことと同様の機能を有し、動作、処理等を行う。制御部１３Ａは、例えば電力線１からの電力供給を受けている電気機器に対して、指示を行うための信号を通信部１６を介して送信し、電気機器の制御を行うことができる。また、本実施の形態の機器制御装置では計時手段１４を設けていないことから、制御部１３Ａは、実施の形態１の制御部１３が行っていた電力量の算出は特に行わないものとする。 Embodiment 3 FIG.
FIG. 5 is a configuration diagram of a device control apparatus attached to the power line 1 according to Embodiment 3 of the present invention. In FIG. 5, means and the like with the same numbers as those in FIG. 1 have the same functions as those described in Embodiment 1 and perform operations, processes, and the like. For example, the control unit 13 </ b> A can transmit a signal for giving an instruction to the electric device receiving power supply from the power line 1 via the communication unit 16 to control the electric device. In addition, since the device control apparatus according to the present embodiment does not include the time measuring unit 14, the control unit 13A does not particularly perform the calculation of the amount of electric power performed by the control unit 13 according to the first embodiment.

図６は機器制御システムの構成を示す図である。本実施の形態の機器制御装置１７は、電力計測動作を行って算出した電力に基づいて、電力線１から電力の供給を受ける電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２の制御を行う。電流制限器（ブレーカ）１８は、電力線１により給電され、電力線１の各線に接続された、電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２が消費する電力が所定以上になると、電力線１を電気的に遮断（短絡）させる。また、図６の電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２は、本実施の形態の電力計測装置１７と無線等により通信を行って各種データ等を含む信号の送受信を行うことができる機能を有している。電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１、電気機器Ｄ２２については、特に限定するものではないが例えば空気調和装置、加熱調理器等である。 FIG. 6 is a diagram showing the configuration of the device control system. The device control device 17 according to the present embodiment controls the electric device A19, the electric device B20, the electric device C21, and the electric device D22 that are supplied with electric power from the power line 1 based on the electric power calculated by performing the electric power measurement operation. Do. The current limiter (breaker) 18 is fed by the power line 1, and when the power consumed by the electric device A 19, the electric device B 20, the electric device C 21, and the electric device D 22 connected to each line of the power line 1 exceeds a predetermined level, the power line 1 is electrically cut off (short circuit). Further, the electric device A19, the electric device B20, the electric device C21, and the electric device D22 in FIG. 6 communicate with the power measurement device 17 of the present embodiment wirelessly to transmit / receive signals including various data. It has a function that can. Although it does not specifically limit about the electric equipment A19, the electric equipment B20, the electric equipment C21, and the electric equipment D22, For example, they are an air conditioning apparatus, a heating cooker, etc.

次に機器制御装置における動作について説明する。ここでは、上述の実施の形態１と異なる動作について説明する。制御部１３Ａは、例えば通信部１６を介して、電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２とあらかじめ通信を行い、機器の種類等、電力線１から電力の供給を受ける電気機器に関するデータを不揮発メモリ１５１２に記録しておく。また、電力線１において許容できる消費電力の最大値（電流制限器１８に電力線１を遮断させない電力の最大値）のデータを不揮発メモリ１５１２に記録しておく。 Next, the operation in the device control apparatus will be described. Here, operations different from those of the first embodiment will be described. For example, the control unit 13A communicates with the electrical device A19, the electrical device B20, the electrical device C21, and the electrical device D22 via the communication unit 16 in advance, and relates to an electrical device that receives power supply from the power line 1, such as the type of the device. Data is recorded in the nonvolatile memory 1512. Further, data of the maximum power consumption allowable in the power line 1 (maximum value of power that does not cause the current limiter 18 to cut off the power line 1) is recorded in the nonvolatile memory 1512.

そして、実施の形態１において説明した電力計測動作により、制御部１３Ａは、電圧検出部１０が検出した電圧値のデータ、電流検出部８が検出した電流値のデータに基づいて、電気機器で消費されている電力の値を算出する。さらに、算出した電力値と不揮発メモリ１５１２に記録した電力の最大値とを比較する。算出した電力値の方が最大値よりも大きいと判断すると、電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１、電気機器Ｄ２２の１又は複数の電気機器に対して、指示を含む信号を通信部１６を介して送信するようにし、電気機器の制御を行う。ここで、指示を含む信号を送信する電気機器の選定等については特に限定しない。例えば空気調和装置に設定温度を変更させるための信号、ＩＨクッキングヒーター等の加熱調理器の火力を一時的に弱するための信号等を送信し、消費電力の大きい電気機器が消費する電力を優先的に低減させるようにしてもよい。このようにして、電力線１から電力の供給を受ける電気機器の消費電力が、電流制限器１８を動作させない範囲となるようにする。 Then, by the power measurement operation described in the first embodiment, the control unit 13A consumes the electric device based on the voltage value data detected by the voltage detection unit 10 and the current value data detected by the current detection unit 8. Calculate the value of the electric power. Further, the calculated power value is compared with the maximum power value recorded in the nonvolatile memory 1512. If it is determined that the calculated power value is larger than the maximum value, the communication unit 16 sends a signal including an instruction to one or more of the electric devices A19, B20, C21, and D22. To control the electrical equipment. Here, there is no particular limitation on the selection of an electric device that transmits a signal including an instruction. For example, a signal for changing the set temperature to the air conditioner, a signal for temporarily weakening the heating power of a heating cooker such as an IH cooking heater, etc. are transmitted preferentially, and the power consumed by electric devices with high power consumption is given priority. You may make it reduce. In this way, the power consumption of the electrical device that receives power from the power line 1 is set in a range where the current limiter 18 is not operated.

以上のように実施の形態３の機器制御装置によれば、クランプ型のＣＴ（１）２及びＣＴ（２）３並びに電極５、６及び７を用いて取り付けを行うようにしたので、電力線１を加工等することなく、容易に取り付けを行い、工事の簡易化をはかることができる。また、制御部１３Ａが、通信部１６により、電力線１から電力供給を受ける電気機器との間で通信による指示を送信し、電気機器の制御を行うことができるので、電力計測動作により算出した電力が、電力線１における許容範囲を越える可能性があると判断した場合には、電力線１から電力の供給を受ける電気機器の消費電力が、電流制限器１８を動作させない範囲となるようにすることで、電気機器の円滑な運用を行うことができる。 As described above, according to the device control apparatus of the third embodiment, since the attachment is performed using the clamp type CT (1) 2 and CT (2) 3 and the electrodes 5, 6 and 7, the power line 1 It is possible to easily install and to simplify the construction without processing. Further, the control unit 13A can transmit an instruction by communication with the electric device that receives power supply from the power line 1 through the communication unit 16, and can control the electric device. However, if it is determined that there is a possibility that the allowable range of the power line 1 may be exceeded, the power consumption of the electric device that receives power from the power line 1 is set to a range in which the current limiter 18 is not operated. Smooth operation of electrical equipment can be performed.

実施の形態４．
図７は本発明の実施の形態４における電力線１に取り付けた機器制御装置の構成図である。図７において、図１等と同じ番号を付している手段等については、実施の形態１等で説明したことと同様の機能を有し、動作、処理等を行う。本実施の形態の機器制御装置は、実施の形態２の電力計測装置のように、消費される電力に比例してＬ１−Ｎ及びＬ２−Ｎに流れる電流から誘導により得られる交流電力を受けるようにしている。また、実施の形態３の機器制御装置と同様に計時手段１４を設けていない。制御部１３Ａが行う電力線１からの電力供給を受ける電気機器の制御に関する処理については、実施の形態３で説明したことと同様である。 Embodiment 4 FIG.
FIG. 7 is a configuration diagram of a device control apparatus attached to the power line 1 according to Embodiment 4 of the present invention. In FIG. 7, means and the like with the same reference numerals as those in FIG. The device control apparatus according to the present embodiment receives AC power obtained by induction from the currents flowing through L1-N and L2-N in proportion to the consumed power, like the power measurement apparatus according to the second embodiment. I have to. Moreover, the time measuring means 14 is not provided like the apparatus control apparatus of Embodiment 3. The processing related to the control of the electric equipment that receives power supply from the power line 1 performed by the control unit 13A is the same as that described in the third embodiment.

以上のように実施の形態４の機器制御装置によれば、クランプ型のＣＴ（１）２及びＣＴ（２）３並びに電極５、６及び７を用いて取り付けを行うようにしたので、電力線１を加工等することなく、容易に取り付けを行い、工事の簡易化をはかることができる。また、電力計測に用いる電流検出において得られる電力に基づいて、電源生成部９が電源となる電力を変換生成するようにしたので、実施の形態１のように電力確保のための素子を設ける必要なく、電力計測装置が電力計測動作に必要となる電力を電力線１から受けることができる。そして、通信により電力線１から電力供給を受ける電気機器の制御を行うことができるので、電気機器の消費電力が、電流制限器１８を動作させない範囲となるようにすることで、電気機器の円滑な運用を行うことができる。 As described above, according to the device control apparatus of the fourth embodiment, since the attachment is performed using the clamp-type CT (1) 2 and CT (2) 3 and the electrodes 5, 6 and 7, the power line 1 It is possible to easily install and to simplify the construction without processing. In addition, since the power generation unit 9 converts and generates power as the power source based on the power obtained in the current detection used for power measurement, it is necessary to provide an element for securing power as in the first embodiment. In addition, the power measuring device can receive the power required for the power measuring operation from the power line 1. And since it is possible to control the electric device that receives power supply from the power line 1 by communication, the power consumption of the electric device is in a range where the current limiter 18 is not operated, so that the electric device can be smoothly operated. Operation can be performed.

実施の形態５．
図８は本発明の実施の形態５における電力線１に取り付けた機器制御装置の構成図である。図８において、図１等と同じ番号を付している手段等については、実施の形態１等で説明したことと同様の機能を有し、動作、処理等を行う。制御部１３Ｂは、実施の形態３の制御部１３Ａと同様に、例えば電力線１からの電力供給を受けている電気機器に対して、指示を行うための信号を通信部１６を介して送信し、電気機器の制御を行うことができる。ただ、本実施の形態の機器制御装置では電圧検出部１０を設けていないことから、制御部１３Ｂは電力の算出を行わない。そして、電流検出部８が検出したＬ１−Ｎ及びＬ２−Ｎにおいて各々流れる電流値に基づいて電流計測を行い、電気機器の制御を行う点で制御部１３Ａと異なる。また、電圧検出部１０を設けていないため、電極５、６及び７を、Ｌ１線、Ｌ２線及びＮ線に取り付ける必要がない。 Embodiment 5 FIG.
FIG. 8 is a configuration diagram of a device control apparatus attached to the power line 1 according to the fifth embodiment of the present invention. In FIG. 8, means and the like with the same numbers as those in FIG. 1 have the same functions as those described in the first embodiment and perform operations, processes, and the like. Similarly to the control unit 13A of the third embodiment, the control unit 13B transmits, for example, a signal for giving an instruction to the electric device receiving power supply from the power line 1 via the communication unit 16, Control of electrical equipment can be performed. However, since the voltage detection unit 10 is not provided in the device control apparatus of the present embodiment, the control unit 13B does not calculate power. And it differs from control part 13A by the point which measures an electric current based on the electric current value which each flows in L1-N and L2-N which the electric current detection part 8 detected, and controls an electric equipment. Moreover, since the voltage detection part 10 is not provided, it is not necessary to attach the electrodes 5, 6 and 7 to the L1, L2 and N lines.

図９は機器制御システムの構成を示す図である。本実施の形態の機器制御装置２３は、電流計測動作を行って算出した電流に基づいて、電力線１から電力の供給を受ける電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２の制御を行う。 FIG. 9 is a diagram showing the configuration of the device control system. The device control apparatus 23 according to the present embodiment controls the electric device A19, the electric device B20, the electric device C21, and the electric device D22 that are supplied with power from the power line 1 based on the current calculated by performing the current measurement operation. Do.

次に機器制御装置における動作について説明する。ここでは、基本的に上述の実施の形態１及び３と異なる動作について説明する。制御部１３Ｂは、例えば通信部１６を介して、電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１及び電気機器Ｄ２２とあらかじめ通信を行い、機器の種類等、電力線１から電力の供給を受ける電気機器に関するデータを不揮発メモリ１５１２に記録しておく。また、電力線１において許容できる電流の最大値（電流制限器１８を遮断しない電流の最大値）のデータを不揮発メモリ１５１２に記録しておく。 Next, the operation in the device control apparatus will be described. Here, basically, operations different from those of the first and third embodiments will be described. The control unit 13B relates to an electric device that communicates with the electric device A19, the electric device B20, the electric device C21, and the electric device D22 in advance through the communication unit 16, for example, and receives power supply from the power line 1 such as the type of the device. Data is recorded in the nonvolatile memory 1512. Further, data of the maximum value of current that can be allowed in the power line 1 (maximum value of current that does not interrupt the current limiter 18) is recorded in the nonvolatile memory 1512.

そして、制御部１３Ｂは、電流検出部８が検出した電流値と不揮発メモリ１５１２に記録した電流の最大値とを比較する。検出した電流値が最大値よりも大きいと判断すると、電気機器Ａ１９、電気機器Ｂ２０、電気機器Ｃ２１、電気機器Ｄ２２の１又は複数の電気機器に対して、指示を含む信号を通信部１６を介して送信するようにし、電気機器の制御を行う。本実施の形態においても、指示を含む信号を送信する電気機器の選定等については特に限定しない。 Then, the control unit 13B compares the current value detected by the current detection unit 8 with the maximum value of the current recorded in the nonvolatile memory 1512. If it is determined that the detected current value is larger than the maximum value, a signal including an instruction is transmitted via the communication unit 16 to one or a plurality of electric devices A19, B20, C21, and D22. Control the electrical equipment. Also in this embodiment, there is no particular limitation on the selection of an electrical device that transmits a signal including an instruction.

以上のように実施の形態５の機器制御装置によれば、クランプ型のＣＴ（１）２及びＣＴ（２）を用いて取り付けを行うようにしたので、電力線１を加工等することなく、容易に取り付けを行い、工事の簡易化をはかることができる。また、通信により電力線１から電力供給を受ける電気機器の制御を行うことができるので、電流計測動作により検出した電流が、電力線１における許容範囲を越える可能性があると判断した場合には、電力線１から電力の供給を受ける電気機器の消費電力が、電流制限器１８を動作させない範囲となるようにすることで、電気機器の円滑な運用を行うことができる。 As described above, according to the device control apparatus of the fifth embodiment, since the attachment is performed using the clamp-type CT (1) 2 and CT (2), it is easy without processing the power line 1 or the like. It is possible to simplify the construction by attaching to the. In addition, since it is possible to control an electrical device that receives power supply from the power line 1 by communication, if it is determined that the current detected by the current measurement operation may exceed the allowable range in the power line 1, the power line By making the power consumption of the electric device that receives the supply of electric power from 1 within a range in which the current limiter 18 is not operated, the electric device can be smoothly operated.

実施の形態６．
図１０は本発明の実施の形態６における電力線１に取り付けた機器制御装置の構成図である。図１０において、図１等と同じ番号を付している手段等については、実施の形態１等で説明したことと同様の機能を有し、動作、処理等を行う。本実施の形態の機器制御装置は、実施の形態２の電力計測装置のように、消費される電力に比例してＬ１−Ｎ及びＬ２−Ｎに流れる電流から誘導により得られる交流電力を受けるようにしている。また、実施の形態５の機器制御装置と同様に電圧検出部１０を有していない。このため、各々Ｌ１線、Ｌ２線及びＮ線を電極５、６及び７に取り付ける必要がない。制御部１３Ｂが行う電力線１からの電力供給を受ける電気機器の制御に関する処理については、実施の形態５で説明したことと同様である。 Embodiment 6 FIG.
FIG. 10 is a configuration diagram of a device control apparatus attached to the power line 1 in Embodiment 6 of the present invention. In FIG. 10, the means and the like with the same numbers as those in FIG. The device control apparatus according to the present embodiment receives AC power obtained by induction from the currents flowing through L1-N and L2-N in proportion to the consumed power, like the power measurement apparatus according to the second embodiment. I have to. Moreover, the voltage detection part 10 is not provided like the apparatus control apparatus of Embodiment 5. For this reason, it is not necessary to attach the L1, L2 and N lines to the electrodes 5, 6 and 7, respectively. The processing related to the control of the electric equipment that receives power supply from the power line 1 performed by the control unit 13B is the same as that described in the fifth embodiment.

以上のように実施の形態６の機器制御装置によれば、クランプ型のＣＴ（１）２及びＣＴ（２）を用いて取り付けを行うようにしたので、電力線１を加工等することなく、容易に取り付けを行い、工事の簡易化をはかることができる。また、電力計測に用いる電流検出において得られる電力に基づいて、電源生成部９が電源となる電力を変換生成するようにしたので、実施の形態１のように電力確保のための素子を設ける必要なく、電力計測装置が電力計測動作に必要となる電力を電力線１から受けることができる。そして、通信により電力線１から電力供給を受ける電気機器の制御を行うことができるので、電流計測動作により検出した電流が、電力線１における許容範囲を越える可能性があると判断した場合には、電力線１から電力の供給を受ける電気機器の消費電力が、電流制限器１８を動作させない範囲となるようにすることで、電気機器の円滑な運用を行うことができる。 As described above, according to the device control apparatus of the sixth embodiment, the attachment is performed using the clamp-type CT (1) 2 and CT (2), so that the power line 1 can be easily processed without being processed. It is possible to simplify the construction by attaching to the. In addition, since the power generation unit 9 converts and generates power as the power source based on the power obtained in the current detection used for power measurement, it is necessary to provide an element for securing power as in the first embodiment. In addition, the power measuring device can receive the power required for the power measuring operation from the power line 1. Then, since it is possible to control the electric device that receives power supply from the power line 1 by communication, if it is determined that the current detected by the current measurement operation may exceed the allowable range in the power line 1, the power line By making the power consumption of the electric device that receives the supply of electric power from 1 within a range in which the current limiter 18 is not operated, the electric device can be smoothly operated.

本発明による電力計測装置及び機器制御装置は、家庭用電気機器におけるデマンド制御システム、エネルギー管理システム、ビル・工場などの設備システムのエネルギー管理、省エネルギーの制御システム等に適用することができる。 The power measuring device and the device control device according to the present invention can be applied to a demand control system, an energy management system, an energy management of an equipment system such as a building / factory, an energy saving control system, etc.

１電力線、２，３，４電流トランス、５，６，７電極、８電流検出部、９電源生成部、１０電圧検出部、１１充電部、１２電圧監視部、１３，１３Ａ，１３Ｂ制御部、１４計時手段、１５不揮発メモリ、１６通信部、１７，２３機器制御装置、１８電流制限器、１９電気機器Ａ、２０電気機器Ｂ、２１電気機器Ｃ、２２電気機器Ｄ。 DESCRIPTION OF SYMBOLS 1 Power line, 2, 3, 4 Current transformer, 5, 6, 7 electrode, 8 Current detection part, 9 Power generation part, 10 Voltage detection part, 11 Charging part, 12 Voltage monitoring part, 13, 13A, 13B Control part, 14 Timekeeping means, 15 Non-volatile memory, 16 Communication unit, 17, 23 Device control device, 18 Current limiter, 19 Electrical device A, 20 Electrical device B, 21 Electrical device C, 22 Electrical device D

Claims

In order to measure the current in the power line that is the power measurement target, a clamp-type current transformer for sandwiching and mounting the power line;
An electrode that is formed on the inner wall surface of the clamp of the current transformer and that measures the voltage of the power line in a non-contact manner by electrostatic coupling via a covering portion that covers the power line;
A current detection unit for detecting a current flowing through a current transformer attached to the power line;
A voltage detection unit for detecting a voltage by the electrodes attached to the power line;
Based on the current value detected by the current detection unit and the voltage value detected by the voltage detection unit, a control unit that calculates power in the power line;
A communication unit for wirelessly communicating a signal including data related to the power ;
A power generation unit that generates power based on a current flowing through the power line;
A charging unit that charges the power related to generation of the power generation unit and supplies power for operation;
A monitoring unit that monitors the power supply state of the charging unit and instructs the control unit to start or stop a power measurement operation;
A time measuring means for measuring time;
Storage means for storing data relating to the processing of the control unit,
When the control unit is instructed to stop, the control unit associates the time data related to the stop with the power amount data obtained by integrating the power, stores the data in the storage unit, stops the processing, and When a start is instructed by the unit, a stop time and an estimated power amount in the power line at the stop time are calculated from a difference between the start time and the stop time, and the estimated power amount is calculated as the power A power measuring device that performs a process of adding to a quantity .

Based on the current flowing in the power line, for receiving electric power supply from the power line by inductive, power measurement device according to claim 1, further comprising the current transformer attached to the neutral line of the power line.

The communication unit is capable of wireless communication with one or a plurality of electric devices receiving power supply from the power line ,
The control unit, based on the calculated power, for some or all of the electrical device, a signal including an instruction and performs processing for transmitting via the communication unit according to claim 1 or 2. The power measuring device according to 2.

When the control unit determines that the calculated power is equal to or greater than a predetermined value, the control unit transmits a signal including an instruction for reducing power to a part or all of the electric devices via the communication unit. The power measurement apparatus according to claim 3 , wherein the process is performed .