JP3013753B2 - Weighing terminal and meter reading system - Google Patents
Weighing terminal and meter reading systemInfo
- Publication number
- JP3013753B2 JP3013753B2 JP7126249A JP12624995A JP3013753B2 JP 3013753 B2 JP3013753 B2 JP 3013753B2 JP 7126249 A JP7126249 A JP 7126249A JP 12624995 A JP12624995 A JP 12624995A JP 3013753 B2 JP3013753 B2 JP 3013753B2
- Authority
- JP
- Japan
- Prior art keywords
- power consumption
- load device
- integrated value
- predetermined time
- timer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005303 weighing Methods 0.000 title claims description 11
- 230000005856 abnormality Effects 0.000 claims description 63
- 238000012806 monitoring device Methods 0.000 claims description 36
- 230000010354 integration Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 28
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、負荷装置毎の消費電力
量を計量する計量端末器と検針システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metering terminal for measuring power consumption of each load device and a meter reading system.
【０００２】[0002]
【従来の技術】従来の検針システムを図５に基づいて説
明する。図５は検針システムの構成を示すブロック図で
ある。2. Description of the Related Art A conventional meter reading system will be described with reference to FIG. FIG. 5 is a block diagram showing the configuration of the meter reading system.
【０００３】検針システムは、計量端末器１と、中央監
視装置２と、電力量計３と、負荷装置４とから構成され
ている。[0003] The meter reading system includes a measuring terminal 1, a central monitoring device 2, a watt-hour meter 3, and a load device 4.
【０００４】電力量計３は、負荷装置４毎に設けられて
おり、負荷装置４において一定の電力量（以下単位電力
量と記す）が消費される毎に、１パルスのパルス信号を
出力する。The watt-hour meter 3 is provided for each load device 4, and outputs a pulse signal of one pulse every time a constant amount of power (hereinafter referred to as a unit power amount) is consumed in the load device 4. .
【０００５】計量端末器１は、負荷装置４毎に設けられ
ており、パルス入力手段１ａと、積算手段１ｂと、送受
信手段１ｃとから構成される。The weighing terminal 1 is provided for each load device 4 and includes a pulse input means 1a, an integrating means 1b, and a transmitting / receiving means 1c.
【０００６】パルス入力手段１ａは、電力量計３から出
力されるパルス信号を受信する。積算手段１ｂは、該パ
ルス信号のパルス数を積算して記憶する。The pulse input means 1a receives a pulse signal output from the watt-hour meter 3. The integrating means 1b integrates and stores the number of pulses of the pulse signal.
【０００７】送受信手段１ｃは、中央監視装置２から積
算値送信要求信号を受信すると、該パルス数の積算値を
中央監視装置２に送信する。[0007] Upon receiving the integrated value transmission request signal from the central monitoring device 2, the transmitting / receiving means 1 c transmits the integrated value of the pulse number to the central monitoring device 2.
【０００８】中央監視装置２は、月末などの中央監視装
置２が総消費電力量の値を知ることを必要とするとき
（以下、中央処理装置２が総消費電力量の値を知ること
を必要とするときを検針時と記す）に積算値送信要求信
号を計量端末器１に送信し、計量端末器１の送受信手段
１ｃの返信する積算値を受信する。そして、中央監視装
置２は、積算値に単位消費電力量を掛けて負荷装置４に
おける総消費電力量を求めて管理する。When the central monitoring device 2 needs to know the value of the total power consumption at the end of the month or the like (hereinafter, the central processing device 2 needs to know the value of the total power consumption). Is referred to as meter reading), an integrated value transmission request signal is transmitted to the weighing terminal 1, and the integrated value returned by the transmitting / receiving means 1c of the weighing terminal 1 is received. Then, the central monitoring device 2 calculates and manages the total power consumption in the load device 4 by multiplying the integrated value by the unit power consumption.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、上述の
図５に示すような検針システムにあっては、電力量計３
が故障したり、あるいは電力量計３と計量端末器１との
接続に故障を生じているような場合であっても、中央監
視装置２は検針時毎にしか、計量端末器１の積算して記
憶する積算値を監視しない。従って、上述の図５に示す
ような検針システムは、検針時になれば、計量端末器１
の返信する積算値があまりに低い値であれば、点検等を
して故障を発見することができるが、検針時がくるまで
は、たとえ電力量計３が故障していたとしても、その故
障を発見することができない。よって、故障の発見が遅
れ、また、中央監視装置２は、正確な積算値を受信でき
なくなるので、正確な消費電力量を管理することができ
ず、消費電力量に従って課金する等の場合には正しい料
金請求ができないという問題点があった。However, in the meter reading system as shown in FIG.
The central monitoring device 2 integrates the metering terminal 1 only every time the meter is read, even if the meter has failed or the connection between the watt hour meter 3 and the metering terminal 1 has failed. Do not monitor the integrated value stored. Therefore, the meter reading system as shown in FIG.
If the integrated value returned by is too low, a fault can be found by inspection, etc., but until the meter reading time comes, even if the watt-hour meter 3 is faulty, the fault is found. Can not do it. Therefore, the discovery of the failure is delayed, and the central monitoring device 2 cannot receive an accurate integrated value. Therefore, it is not possible to manage the accurate power consumption, and in the case of charging according to the power consumption, etc. There was a problem that correct billing was not possible.
【００１０】本発明は、上記問題点を改善するために成
されたもので、その目的とするところは、電力量計およ
び、電力量計と計量端末器との接続の故障を早期に発見
することのでき、正確な消費電力量を管理することので
きる計量端末器および検針システムを提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to detect a failure of a watt-hour meter and a connection between the watt-hour meter and the measuring terminal at an early stage. It is an object of the present invention to provide a metering terminal and a meter reading system capable of managing accurate power consumption.
【００１１】[0011]
【課題を解決するための手段】本発明は上記の問題を解
決するために、請求項１記載の発明にあっては、負荷装
置の消費電力量を計測する電力量計から消費電力量を受
信する消費電力量入力手段と、消費電力量入力手段が受
信する消費電力量を積算する積算手段と、積算手段が積
算する消費電力量を中央監視装置に送信する送受信手段
とを備える計量端末器において、所定時間を計測するタ
イマと、負荷装置の動作状態を検知する動作検知手段
と、動作検知手段が負荷装置が動作中であると検知した
場合であって、タイマの計測する所定時間の間に受け取
った消費電力量の積算値が所定の範囲の値から外れてい
る場合に報知する消費電力異常報知手段とを有すること
を特徴とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a method for receiving power consumption from a watt hour meter for measuring the power consumption of a load device. A power consumption inputting means, an integrating means for integrating the power consumption received by the power consumption inputting means, and a transmitting / receiving means for transmitting the power consumption integrated by the integrating means to the central monitoring device. A timer that measures a predetermined time, an operation detection unit that detects an operation state of the load device, and a case where the operation detection unit detects that the load device is operating. Power consumption abnormality notification means for notifying when the integrated value of the received power consumption is out of a predetermined range.
【００１２】請求項２記載の発明にあっては、負荷装置
と、負荷装置の消費電力量を計測する電力量計と、電力
量計の出力する消費電力量を積算して中央監視装置に送
信する計量端末器と、計量端末器からの消費電力量の積
算値を管理する中央監視装置とを有する検針システムに
おいて、前記計量端末器は、所定時間を計測するタイマ
と、負荷装置の動作状態を検知する動作検知手段と、動
作検知手段が負荷装置が動作中であると検知した場合で
あって、タイマの計測する所定時間の間に受け取った消
費電力量の積算値が所定の範囲の値から外れている場合
に報知する消費電力異常報知手段とを有することを特徴
とするものである。According to the second aspect of the present invention, the load device, a watt-hour meter for measuring the power consumption of the load device, and the power consumption output from the watt-hour meter are integrated and transmitted to the central monitoring device. Metering terminal, and a meter reading system having a central monitoring device that manages the integrated value of the amount of power consumption from the metering terminal, the metering terminal includes a timer for measuring a predetermined time, and an operation state of the load device. The operation detecting means for detecting, and when the operation detecting means detects that the load device is operating, the integrated value of the power consumption received during the predetermined time measured by the timer is increased from a value in a predetermined range. Power consumption abnormality notifying means for notifying when it is off.
【００１３】請求項３記載の発明にあっては、負荷装置
と、負荷装置の消費電力量を計測する電力量計と、電力
量計の出力する消費電力量を積算して中央監視装置に送
信する計量端末器と、計量端末器からの消費電力量の積
算値を管理し、負荷装置の動作／停止を制御する中央監
視装置とを有する検針システムにおいて、前記中央監視
装置は、所定時間を計測するタイマと、負荷装置が動作
中であって、タイマの計測する所定時間の間の消費電力
量が所定の範囲の値から外れている場合に報知する消費
電力異常報知手段とを有することを特徴とするものであ
る。According to the third aspect of the present invention, the load device, a watt hour meter for measuring the power consumption of the load device, and the power consumption output from the watt hour meter are integrated and transmitted to the central monitoring device. In a meter reading system having a measuring terminal device that performs measurement and a central monitoring device that manages an integrated value of power consumption from the measuring terminal device and controls operation / stop of a load device, the central monitoring device measures a predetermined time. And a power consumption abnormality notifying unit that notifies when the load device is operating and the amount of power consumption during a predetermined time measured by the timer is out of a predetermined range. It is assumed that.
【００１４】[0014]
【作用】以上のように構成したことにより、請求項１記
載の発明にあっては、タイマが所定時間を計測し、動作
検知手段が負荷装置の動作状態を検知する。そして、消
費電力異常報知手段は、動作検知手段が負荷装置が動作
中であると検知した場合であって、タイマの計測する所
定時間の間に受け取った消費電力量の積算値が所定の範
囲の値から外れている場合に、負荷装置等の故障である
と判断して報知する。According to the above construction, the timer measures a predetermined time, and the operation detecting means detects the operation state of the load device. Then, the power consumption abnormality notifying means, when the operation detecting means detects that the load device is operating, the integrated value of the power consumption received during the predetermined time measured by the timer is within a predetermined range. If the value deviates from the value, it is determined that a failure has occurred in the load device or the like and a notification is issued.
【００１５】請求項２記載の発明にあっては、タイマが
所定時間を計測し、動作検知手段が負荷装置の動作状態
を検知する。そして、消費電力異常報知手段は、動作検
知手段が負荷装置が動作中であると検知した場合であっ
て、タイマの計測する所定時間の間に受け取った消費電
力量の積算値が所定の範囲の値から外れている場合に、
負荷装置等の故障であると判断して報知する。According to the second aspect of the invention, the timer measures a predetermined time, and the operation detecting means detects the operation state of the load device. Then, the power consumption abnormality notifying means, when the operation detecting means detects that the load device is operating, the integrated value of the power consumption received during the predetermined time measured by the timer is within a predetermined range. If the value is out of range,
It is determined that a failure has occurred in the load device or the like, and is notified.
【００１６】請求項３記載の発明にあっては、タイマが
所定時間を計測する。そして、消費電力異常報知手段
は、中央監視装置が負荷装置を動作させている場合であ
って、タイマの計測する所定時間の間の消費電力量が所
定の範囲の値から外れている場合に、負荷装置等の故障
であると判断して報知する。According to the third aspect of the present invention, the timer measures a predetermined time. Then, the power consumption abnormality notification means, when the central monitoring device is operating the load device, and when the power consumption during the predetermined time measured by the timer is out of the value of the predetermined range, It is determined that a failure has occurred in the load device or the like, and is notified.
【００１７】[0017]
【実施例】本発明にかかる検針システムの第一実施例を
図１、図２に基づいて、第二実施例を図３、図４に基づ
いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the meter reading system according to the present invention will be described with reference to FIGS. 1 and 2, and a second embodiment will be described with reference to FIGS.
【００１８】〔第一実施例〕図１は検針システムの構成
を示すブロック図である。図２は検針システムの動作を
説明するフローチャートである。[First Embodiment] FIG. 1 is a block diagram showing the configuration of a meter reading system. FIG. 2 is a flowchart illustrating the operation of the meter reading system.
【００１９】図１において、検針システムは、計量端末
器５と、中央監視装置２と、電力量計３と、負荷装置４
と、警報手段６とを含んで構成されている。In FIG. 1, the meter reading system includes a measuring terminal device 5, a central monitoring device 2, a watt-hour meter 3, and a load device 4.
And an alarm means 6.
【００２０】負荷装置４は、例えば照明装置や動力モー
タなどの電力を消費するものである。The load device 4 consumes electric power of, for example, a lighting device and a power motor.
【００２１】電力量計３は、負荷装置４毎に設けられて
おり、負荷装置４において単位電力量が消費される毎に
１パルスのパルス信号を出力する。The watt-hour meter 3 is provided for each load device 4, and outputs a one-pulse pulse signal each time a unit of power is consumed in the load device 4.
【００２２】計量端末器５は、負荷装置４毎に設けられ
ており、消費電力量入力手段に相当するパルス入力手段
５ａと、積算手段５ｂと、送受信手段５ｃと、消費電力
異常報知手段５ｄと、動作検知手段５ｅと、設定手段５
ｆと、タイマ５ｇとから構成される。The measuring terminal 5 is provided for each load device 4, and includes a pulse input means 5a corresponding to a power consumption input means, an integrating means 5b, a transmission / reception means 5c, and a power consumption abnormality notification means 5d. , Operation detecting means 5e, setting means 5
f and a timer 5g.
【００２３】パルス入力手段５ａは、電力量計３から発
せられるパルス信号を受信して、積算手段５ｂと消費電
力異常報知手段５ｄとに出力する。The pulse input means 5a receives a pulse signal from the watt-hour meter 3 and outputs it to the integrating means 5b and the power consumption abnormality notifying means 5d.
【００２４】積算手段５ｂは、パルス入力手段５ａから
入力されるパルス信号のパルス数を積算して記憶する。The integrating means 5b integrates and stores the number of pulses of the pulse signal input from the pulse input means 5a.
【００２５】送受信手段５ｃは、中央監視装置２から積
算値送信要求信号を受信すると、該積算したパルス数を
中央監視装置２に送信する。When receiving the integrated value transmission request signal from the central monitoring device 2, the transmitting / receiving means 5c transmits the integrated pulse number to the central monitoring device 2.
【００２６】動作検知手段５ｅは、負荷装置４が動作し
ているか否かを検知して、動作していれば「動作中」の
情報を、動作していなければ「停止中」の情報を保持す
る。The operation detecting means 5e detects whether or not the load device 4 is operating, and holds information of "operating" if it is operating, and information of "stopping" if it is not operating. I do.
【００２７】タイマ５ｇは、所定の時間間隔を計測する
ものである。本実施例では、所定時間を０．１秒に設定
している。The timer 5g measures a predetermined time interval. In this embodiment, the predetermined time is set to 0.1 second.
【００２８】消費電力異常報知手段５ｄは、パルス入力
手段５ａから入力されるパルス信号のパルス数を積算し
て、積算値を記憶する（以下、消費電力異常報知手段５
ｄの記憶する積算値を積算手段５ｂの記憶する積算値と
区別するために、異常報知用積算値と記す）。そして、
消費電力異常報知手段５ｄは、タイマ５ｇが計測する所
定時間の間に積算した異常報知用積算値と、予め定めた
上限パルス数および下限パルス数とを比較する。消費電
力異常報知手段５ｄは、動作検知手段５ｅの保持する情
報が「動作中」であって、且つ、異常報知用積算値が上
限パルス数と下限パルス数との範囲内に入っていない場
合には、負荷装置４が動作しているにも関わらず電力の
消費が正常に計測されていないと判断する。消費電力異
常報知手段５ｄは、該判断をした場合には、警報手段６
に警報信号を出力する。そして、消費電力異常報知手段
５ｄは、該判断の結果にかかわらず、タイマ５ｇの計測
する所定時間０．１秒毎に異常報知用積算値をクリア
し、新たに積算し直す。The power consumption abnormality notification means 5d integrates the number of pulses of the pulse signal input from the pulse input means 5a and stores the integrated value (hereinafter, the power consumption abnormality notification means 5).
In order to distinguish the integrated value stored by d from the integrated value stored by the integrating means 5b, it is referred to as an abnormality notification integrated value). And
The power consumption abnormality notification means 5d compares the abnormality notification integrated value integrated during the predetermined time measured by the timer 5g with the predetermined upper limit pulse number and lower limit pulse number. The power consumption abnormality notifying unit 5d performs the operation when the information held by the operation detecting unit 5e is “operating” and the abnormality notification integrated value does not fall within the range between the upper limit pulse number and the lower limit pulse number. Determines that the power consumption is not measured normally even though the load device 4 is operating. When the power consumption abnormality notification unit 5d makes the determination, the alarm unit 6
An alarm signal is output to Then, regardless of the result of the determination, the power consumption abnormality notification means 5d clears the abnormality notification integrated value every 0.1 seconds, which is measured by the timer 5g, and restarts the integration.
【００２９】設定手段５ｆは、タイマ５ｇの計測する所
定時間と、異常報知用積算値が正常な値の範囲内である
か否かを判断するための上限パルス数および下限パルス
数とを設定するものであり、該設定は操作者が行う。The setting means 5f sets a predetermined time measured by the timer 5g and an upper limit pulse number and a lower limit pulse number for determining whether or not the integrated value for abnormality notification is within a normal value range. The setting is performed by the operator.
【００３０】警報手段６は、警報信号を受信すると、警
報表示を点灯し、あるいは警報音を出力する。When receiving the alarm signal, the alarm means 6 turns on an alarm display or outputs an alarm sound.
【００３１】中央監視装置２は、検針時に積算値送信要
求信号を計量端末器５に送信し、計量端末器５の送受信
手段５ｃの返信する積算値を受信する。そして、中央監
視装置２は、積算値に単位消費電力量を掛けて負荷装置
における総消費電力量を求める。The central monitoring device 2 transmits an integrated value transmission request signal to the measuring terminal 5 at the time of meter reading, and receives the integrated value returned from the transmitting / receiving means 5c of the measuring terminal 5. Then, the central monitoring device 2 calculates the total power consumption in the load device by multiplying the integrated value by the unit power consumption.
【００３２】次に接続関係を説明する。負荷装置４は電
力量計３と計量端末器５の動作検知手段５ｅとに接続さ
れている。電力量計３はパルス入力手段５ａと接続さ
れ、パルス入力手段５ａは積算手段５ｂと消費電力異常
報知手段５ｄとに接続されている。消費電力異常報知手
段５ｄは、設定手段５ｆと、タイマ５ｇと、動作検知手
段５ｅと、警報手段６とに接続されている。積算手段５
ｂは送受信手段５ｃに接続され、送受信手段５ｃは中央
監視装置２に接続されている。Next, the connection relationship will be described. The load device 4 is connected to the watt-hour meter 3 and the operation detecting means 5e of the measuring terminal 5. The watt hour meter 3 is connected to the pulse input means 5a, and the pulse input means 5a is connected to the integrating means 5b and the power consumption abnormality notifying means 5d. The power consumption abnormality notification unit 5d is connected to the setting unit 5f, the timer 5g, the operation detection unit 5e, and the alarm unit 6. Integrator 5
b is connected to the transmission / reception means 5c, and the transmission / reception means 5c is connected to the central monitoring device 2.
【００３３】次に、以上のようにして構成された検針シ
ステムの計量端末器５の故障を検出する動作を図２に示
すフローチャートに基づき説明する。Next, an operation for detecting a failure of the metering terminal 5 of the meter reading system configured as described above will be described with reference to a flowchart shown in FIG.
【００３４】まず、負荷装置４が動作すると、電力量計
３が消費電力を検出してパルス信号を計量端末器５のパ
ルス入力手段５ａに出力する。パルス入力手段５ａは、
積算手段５ｂと消費電力異常報知手段５ｄとに、パルス
信号を出力し、積算手段５ｂと消費電力異常報知手段５
ｄとはパルス数を積算する。First, when the load device 4 operates, the watt-hour meter 3 detects power consumption and outputs a pulse signal to the pulse input means 5a of the metering terminal 5. The pulse input means 5a
A pulse signal is output to the integration means 5b and the power consumption abnormality notification means 5d, and the integration means 5b and the power consumption abnormality notification means 5 are output.
d is the number of pulses integrated.
【００３５】そして、該動作とは独立して、消費電力異
常報知手段５ｄは、負荷装置４が動作中であるか否かを
判断するために、動作検知手段５ｅの保持する情報が
「動作中」であるか「停止中」であるかを調べる（ステ
ップＳ１０１、Ｓ１０２）。Independently of the operation, the power consumption abnormality notifying means 5d determines whether the information held by the operation detecting means 5e is "operating" in order to determine whether or not the load device 4 is operating. Or "stopping" (steps S101 and S102).
【００３６】動作検知手段５ｅの保持する情報が「動作
中」であれば、次に、消費電力異常報知手段５ｄは、タ
イマ５ｇを調べて、所定時間が経過しているか否かを判
断する（ステップＳ１０３）。If the information held by the operation detecting means 5e is "operating", then the power consumption abnormality notifying means 5d checks the timer 5g to determine whether a predetermined time has elapsed (see FIG. 5). Step S103).
【００３７】所定時間が経過していれば、消費電力異常
報知手段５ｄは、所定時間の間に消費電力異常報知手段
５ｄに積算された異常報知用積算値と上限パルス数およ
び下限パルス数とを比較する（ステップＳ１０４，Ｓ１
０５）。消費電力異常報知手段５ｄは、該異常報知用積
算値が上限パルス数と下限パルス数との範囲内に入って
いない場合には、負荷装置４が動作しているにも関わら
ず電力の消費が正常に計測されていないと判断し（ステ
ップＳ１０６）、警報手段６に警報信号を出力する（ス
テップＳ１０７）。そして、消費電力異常報知手段５ｄ
は、該判断をすると否とにかかわらず、所定時間毎に異
常報知用積算値をクリアして、新たに積算しはじめ、以
降は以上のステップＳ１０１〜Ｓ１０７の動作を繰り返
す。If the predetermined time has elapsed, the power consumption abnormality notifying means 5d compares the abnormality notification integrated value and the upper limit pulse number and the lower limit pulse number integrated in the power consumption abnormality notification means 5d during the predetermined time. Compare (Steps S104 and S1)
05). When the integrated value for abnormality notification does not fall within the range between the upper limit pulse number and the lower limit pulse number, the power consumption abnormality notification unit 5d consumes power even though the load device 4 is operating. It is determined that the measurement has not been performed normally (step S106), and an alarm signal is output to the alarm unit 6 (step S107). Then, the power consumption abnormality notification means 5d
Irrespective of whether or not the determination is made, the abnormality notification integrated value is cleared at predetermined time intervals and a new integration is started, and thereafter the operations of steps S101 to S107 are repeated.
【００３８】なお、送受信手段５ｃが、検針時毎に積算
手段５ｂの積算した積算値を中央監視装置２に送信し、
中央監視装置２が消費電力を管理するのは従来の技術で
説明した検針システムと同じである。The transmitting / receiving means 5c transmits the integrated value obtained by the integrating means 5b to the central monitoring device 2 every time the meter is read.
The central monitoring device 2 manages power consumption in the same manner as in the meter reading system described in the related art.
【００３９】以上のように検針システムは動作するの
で、電力量計３の故障を早期に検出することができる。Since the meter reading system operates as described above, a failure of the watt-hour meter 3 can be detected at an early stage.
【００４０】〔第二実施例〕図３は検針システムの構成
を示すブロック図である。図４は計量端末器の動作を説
明するフローチャートである。なお、図３においては前
述の従来の技術で説明したところの検針システムと同等
の箇所には同じ符号を付してあるので、同等の箇所の詳
細な説明は省略する。[Second Embodiment] FIG. 3 is a block diagram showing the configuration of the meter reading system. FIG. 4 is a flowchart illustrating the operation of the weighing terminal. In FIG. 3, the same reference numerals are given to the same parts as those of the meter reading system described in the above-described conventional technique, and the detailed description of the same parts will be omitted.
【００４１】図３に示す本実施例の検針システムが、前
述の従来の技術で説明したところの検針システムと異な
り特徴となるのは次の構成である。The meter reading system of the present embodiment shown in FIG. 3 is different from the meter reading system described in the above-mentioned prior art and has the following features.
【００４２】即ち、中央監視装置２が負荷装置４の動作
の制御をするようにし、中央監視装置２を、送受信手段
２ａと、主制御部２ｂと、消費電力異常報知手段２ｃ
と、設定手段２ｄと、タイマ２ｅとにより構成し、ま
た、警報手段６を中央監視装置２と接続して設けた点で
ある。That is, the central monitoring device 2 controls the operation of the load device 4, and the central monitoring device 2 is connected to the transmission / reception means 2a, the main control section 2b, and the power consumption abnormality notification means 2c.
, A setting means 2d, and a timer 2e, and an alarm means 6 is provided in connection with the central monitoring device 2.
【００４３】送受信手段２ａは、主制御部２ｂから積算
値送信要求信号を受け取って計量端末器１の送受信部１
ｃに積算値送信要求信号を送信し、送受信部１ｃから積
算値を受信して主制御部２ｂに出力する。送受信手段２
ａは、消費電力異常報知手段２ｃから積算値送信要求信
号を受け取って送受信部１ｃに積算値送信要求信号を送
信し、送受信部１ｃから積算値を受信して消費電力異常
報知手段２ｃに出力する。また、送受信手段２ａは、主
制御部２ｂから動作信号及び停止信号を受け取って負荷
装置４に送信する。動作信号とは負荷装置４に動作する
ことを指示する信号であり、停止信号とは負荷装置４に
動作を停止することを指示する信号である。The transmission / reception means 2a receives the integrated value transmission request signal from the main control section 2b, and
c, transmits an integrated value transmission request signal, receives the integrated value from the transmitting / receiving section 1c, and outputs it to the main control section 2b. Transmission / reception means 2
"a" receives the integrated value transmission request signal from the power consumption abnormality notification means 2c, transmits the integrated value transmission request signal to the transmission / reception section 1c, receives the integrated value from the transmission / reception section 1c, and outputs it to the power consumption abnormality notification means 2c. . The transmission / reception unit 2a receives an operation signal and a stop signal from the main control unit 2b, and transmits the operation signal and the stop signal to the load device 4. The operation signal is a signal that instructs the load device 4 to operate, and the stop signal is a signal that instructs the load device 4 to stop operation.
【００４４】主制御部２ｂは、以下の２つの動作を行
う。第一に、主制御部２ｂは、検針時に積算値送信要求
信号を送受信手段２ａに出力し、計量端末器１の返信す
る積算値を送受信手段２ａから受け取る。そして、主制
御部２ｂは、該積算値に単位消費電力量を掛けて負荷装
置４における総消費電力量を求め、各負荷装置４におけ
る総消費電力量の管理を行う。The main controller 2b performs the following two operations. First, the main controller 2b outputs an integrated value transmission request signal to the transmitting / receiving means 2a at the time of meter reading, and receives the integrated value returned from the measuring terminal device 1 from the transmitting / receiving means 2a. Then, the main control unit 2b multiplies the integrated value by the unit power consumption to obtain the total power consumption in the load devices 4, and manages the total power consumption in each load device 4.
【００４５】第二に、主制御部２ｂは、送受信手段２ａ
を介して負荷装置４に動作信号または停止信号を送信
し、負荷装置４の動作／停止を制御する。Second, the main control unit 2b includes a transmitting / receiving unit 2a
An operation signal or a stop signal is transmitted to the load device 4 via the control unit, and the operation / stop of the load device 4 is controlled.
【００４６】消費電力異常報知手段２ｃは、タイマ２ｅ
が計測する所定時間毎に送受信手段２ａを介して計量端
末器１に積算値送信要求信号を送信し、計量端末器１か
ら返信される積算値を受け取る。そして消費電力異常報
知手段２ｃは、所定時間前に受け取った積算値と今回受
け取った積算値の差分を計算する。従って、該積算値の
差分値は、所定時間の間に負荷装置４が消費した電力量
を表すパルス数である。The power consumption abnormality notifying means 2c includes a timer 2e
Transmits an integrated value transmission request signal to the weighing terminal 1 via the transmission / reception means 2a at every predetermined time measured by the device, and receives the integrated value returned from the weighing terminal 1. Then, the power consumption abnormality notification means 2c calculates a difference between the integrated value received a predetermined time ago and the integrated value received this time. Therefore, the difference value of the integrated value is the number of pulses representing the amount of power consumed by the load device 4 during the predetermined time.
【００４７】そして、消費電力異常報知手段２ｃは、該
積算値の差分値と、予め定めた上限パルス数および下限
パルス数とを比較する。消費電力異常報知手段２ｃは、
主制御部２ｂが負荷装置４に動作信号を送信してから停
止信号を送信するまでの間であって（即ち、負荷装置４
を動作させるように制御している間であって）、且つ、
該積算値の差分値が上限パルス数と下限パルス数との範
囲内に入っていない場合には、負荷装置４が動作してい
るにも関わらず電力の消費が正常に計測されていないと
判断する。消費電力異常報知手段２ｃは、該判断をした
場合には、警報手段６に警報信号を出力する。そして、
消費電力異常報知手段２ｃは、次回の積算値の差分の計
算のために、今回受け取った積算値を記憶する。Then, the power consumption abnormality notification means 2c compares the difference value of the integrated value with the predetermined upper limit pulse number and lower limit pulse number. The power consumption abnormality notification means 2c
This is between the time when the main control unit 2b transmits the operation signal to the load device 4 and the time when the main control unit 2b transmits the stop signal (that is, the
Is controlled to operate), and
If the difference value of the integrated value is not within the range between the upper limit pulse number and the lower limit pulse number, it is determined that power consumption is not measured normally even though the load device 4 is operating. I do. When making the determination, the power consumption abnormality notification unit 2 c outputs a warning signal to the warning unit 6. And
The power consumption abnormality notification unit 2c stores the currently received integrated value for the next calculation of the difference between the integrated values.
【００４８】設定手段２ｄは、タイマ５ｇの計測する所
定時間と、上限パルス数および下限パルス数とを設定す
るものであり、該設定は操作者が行う。The setting means 2d sets a predetermined time measured by the timer 5g, an upper limit pulse number and a lower limit pulse number, and the setting is performed by an operator.
【００４９】タイマ２ｅは、所定の時間間隔を計測する
ものである。本実施例では、所定時間を０．１秒に設定
している。The timer 2e measures a predetermined time interval. In this embodiment, the predetermined time is set to 0.1 second.
【００５０】警報手段６は、警報信号を受信すると、警
報表示を点灯し、あるいは警報音を出力する。When the alarm means 6 receives the alarm signal, it turns on the alarm display or outputs an alarm sound.
【００５１】次に、中央監視装置２の各部位の接続関係
を説明する。送受信手段２ａは、送受信手段１ｃと、主
制御部２ｂと、消費電力異常報知手段２ｃとに接続され
ている。消費電力異常報知手段２ｃは、設定手段２ｄ
と、タイマ２ｅと、警報手段６とに接続されている。Next, the connection relation of each part of the central monitoring device 2 will be described. The transmission / reception unit 2a is connected to the transmission / reception unit 1c, the main control unit 2b, and the power consumption abnormality notification unit 2c. The power consumption abnormality notifying unit 2c includes a setting unit 2d.
, A timer 2 e and an alarm means 6.
【００５２】以上のようにして構成された検針システム
の動作について説明する。まず、主制御部２ｂは動作信
号を負荷装置４に動作信号を送信する。負荷装置４は動
作信号を受け取ると、動作を開始して電力を消費する。
電力量計３は、消費電力を検出してパルス信号を計量端
末器１のパルス入力手段１ａに出力する。パルス入力手
段１ａは、積算手段１ｂにパルス信号を出力し、積算手
段１ｂはパルス数を積算する。The operation of the meter reading system configured as described above will be described. First, the main control unit 2 b transmits an operation signal to the load device 4. When receiving the operation signal, the load device 4 starts operating and consumes power.
The watt-hour meter 3 detects power consumption and outputs a pulse signal to the pulse input unit 1a of the measuring terminal 1. The pulse input unit 1a outputs a pulse signal to the integrating unit 1b, and the integrating unit 1b integrates the number of pulses.
【００５３】一方、消費電力異常報知手段２ｃは、負荷
装置４に対して動作信号が送信されて、且つ、まだ停止
信号が送信されていないか、即ち負荷装置４が動作中か
否か、を判断する（ステップＳ２０１）。On the other hand, the power consumption abnormality notifying means 2c determines whether an operation signal has been transmitted to the load device 4 and a stop signal has not been transmitted yet, that is, whether or not the load device 4 is operating. A determination is made (step S201).
【００５４】負荷装置４が動作中であれば、次に、消費
電力異常報知手段２ｃは、タイマ２ｅを調べて、所定時
間が経過しているか否かを判断する（ステップＳ２０
２）。If the load device 4 is operating, the power consumption abnormality notifying means 2c checks the timer 2e to determine whether a predetermined time has elapsed (step S20).
2).
【００５５】所定時間が経過していれば、消費電力異常
報知手段２ｃは、計量端末器１に積算値送信要求信号を
送信して、積算値を受け取る（ステップＳ２０３、Ｓ２
０４）。消費電力異常報知手段２ｃは、所定時間前に受
け取った積算値と今回受け取った積算値との差分を計算
する（ステップＳ２０５）。If the predetermined time has elapsed, the power consumption abnormality notifying means 2c transmits an integrated value transmission request signal to the measuring terminal device 1 and receives the integrated value (steps S203, S2).
04). The power consumption abnormality notification unit 2c calculates a difference between the integrated value received a predetermined time ago and the integrated value received this time (step S205).
【００５６】そして消費電力異常報知手段２ｃは、該積
算値の差分値と、予め定めた上限パルス数および下限パ
ルス数とを比較する（ステップＳ２０６）。消費電力異
常報知手段２ｃは、該積算値の差分値が上限パルス数と
下限パルス数との範囲内に入っていない場合には、負荷
装置４が動作しているにも関わらず電力の消費が正常に
計測されていないと判断する（ステップＳ２０７）。消
費電力異常報知手段２ｃは、該判断をした場合には、警
報手段６に警報信号を出力する（ステップＳ２０８）。
そして、消費電力異常報知手段２ｃは、次回の積算値の
差分の計算のために、今回受け取った積算値を記憶す
る。そして、以降は以上のステップＳ２０１〜Ｓ２０８
の動作を繰り返す。Then, the power consumption abnormality notification means 2c compares the difference value of the integrated value with the predetermined upper limit pulse number and lower limit pulse number (step S206). When the difference value of the integrated value does not fall within the range between the upper limit pulse number and the lower limit pulse number, the power consumption abnormality notification unit 2c consumes power even though the load device 4 is operating. It is determined that the measurement has not been performed normally (step S207). When making the determination, the power consumption abnormality notification unit 2c outputs a warning signal to the warning unit 6 (Step S208).
Then, the power consumption abnormality notifying unit 2c stores the integrated value received this time for the next calculation of the difference between the integrated values. Thereafter, the above steps S201 to S208
Is repeated.
【００５７】なお、送受信手段１ｃが、検針時毎に積算
手段１ｂの積算した積算値を中央監視装置２の主制御部
２ｂに送信し、中央監視装置２の主制御部２ｂが消費電
力を管理するのは従来の技術で説明した検針システムと
同じである。The transmission / reception unit 1c transmits the integrated value obtained by the integration unit 1b to the main control unit 2b of the central monitoring device 2 every time the meter is read, and the main control unit 2b of the central monitoring device 2 manages the power consumption. This is the same as the meter reading system described in the related art.
【００５８】以上のようにして、負荷装置４が動作して
いるか否かは、動作信号及び停止信号の送信状態により
判断し、監視制御装置２は負荷装置４が動作している場
合であって、所定時間あたりの電力消費量が設定された
範囲外である場合には、電流量計３等の故障であると判
断し、警報手段６によって報知するので、検針システム
は、電力量計３等の故障を知ることができる。As described above, whether or not the load device 4 is operating is determined based on the transmission state of the operation signal and the stop signal, and the monitoring and control device 2 determines whether the load device 4 is operating. If the power consumption per predetermined time is out of the set range, it is determined that the ammeter 3 or the like is faulty, and the alarm means 6 is notified. You can know the failure.
【００５９】なお、本第一実施例、第二実施例では、所
定時間を０．１秒としているが、所定時間は電力量計等
の故障を検出するための時間間隔であるので、検針時か
ら検針時までの時間より短ければよい。そして、該所定
時間が短いほど早く電力量計等の故障を発見することが
できる。In the first embodiment and the second embodiment, the predetermined time is set to 0.1 second. However, since the predetermined time is a time interval for detecting a failure of a watt-hour meter or the like, the predetermined time is not required. It suffices that the time is shorter than the time from when the meter is read. Then, the shorter the predetermined time, the sooner a failure of the watt hour meter or the like can be found.
【００６０】また、消費電力異常報知手段５ｄまたは消
費電力異常報知手段２ｃは、所定時間の間の異常報知用
積算値または積算値の差分値が上限パルス数と下限パル
ス数とで定められる一定の範囲内に入っているか否かを
判断しているが、上限パルス数を設けずに異常報知用積
算値または積算値の差分値が下限パルス数よりも小さい
か否かだけを判断するようにしてもよい。Further, the power consumption abnormality notifying means 5d or the power consumption abnormality notifying means 2c determines whether the integrated value for abnormality notification or the difference value between the integrated values during a predetermined time is determined by the upper limit pulse number and the lower limit pulse number. Although it is determined whether or not it is within the range, without determining the upper limit pulse number, it is determined only whether the integrated value for abnormality notification or the difference value of the integrated value is smaller than the lower limit pulse number. Is also good.
【００６１】[0061]
【発明の効果】本発明の計量端末器および検針システム
は上述のように構成してあるから、請求項１記載の発明
にあっては、タイマが所定時間を計測し、動作検知手段
が負荷装置の動作状態を検知し、消費電力異常報知手段
は、動作検知手段が負荷装置が動作中であると検知した
場合であって、所定時間の間に受け取った消費電力量の
積算値が所定の範囲の値から外れている場合に、負荷装
置等の故障であると判断して報知するので、電力量計お
よび、電力量計と計量端末器との接続の故障を早期に発
見することのでき、電力量計等の故障に気が付かずに消
費電力量の管理を続けることがなく、正確に消費電力量
を管理することのできる計量端末器を提供できるという
効果を奏する。The metering terminal and the meter reading system of the present invention are constructed as described above. According to the first aspect of the present invention, the timer measures a predetermined time, and the operation detecting means is a load device. Power consumption abnormality notifying means, when the operation detecting means detects that the load device is operating, and the integrated value of the power consumption received during the predetermined time is within a predetermined range. When the value deviates from the value, the failure is determined and notified to the load device, etc., so that the failure of the connection between the watt-hour meter and the watt-hour meter and the measuring terminal can be detected early, There is an effect that it is possible to provide a measuring terminal capable of accurately managing the power consumption without continuing to manage the power consumption without noticing the failure of the watt hour meter or the like.
【００６２】請求項２記載の発明にあっては、タイマが
所定時間を計測し、動作検知手段が負荷装置の動作状態
を検知し、消費電力異常報知手段は、動作検知手段が負
荷装置が動作中であると検知した場合であって、所定時
間の間に受け取った消費電力量の積算値が所定の範囲の
値から外れている場合に、負荷装置等の故障であると判
断して報知するので、電力量計および、電力量計と計量
端末器との接続の故障を早期に発見することのでき、電
力量計等の故障に気が付かずに消費電力量の管理を続け
ることがなく、正確に消費電力量を管理することのでき
る検針システムを提供できるという効果を奏する。According to the second aspect of the present invention, the timer measures a predetermined time, the operation detecting means detects the operation state of the load device, and the power consumption abnormality notifying means includes the operation detecting means which operates the load device. If it is detected that the load device is in the middle and the integrated value of the power consumption amount received during the predetermined time is out of the value of the predetermined range, it is determined that the load device or the like is faulty and notified. Therefore, it is possible to detect a failure in the watt-hour meter and the connection between the watt-hour meter and the measuring terminal at an early stage, without having to continue managing the power consumption without noticing the failure of the watt-hour meter, etc. This provides an effect that a meter reading system capable of managing the power consumption can be provided.
【００６３】請求項３記載の発明にあっては、タイマが
所定時間を計測し、消費電力異常報知手段は、中央監視
装置が負荷装置を動作させている場合であって、タイマ
の計測する所定時間の間の消費電力量が所定の範囲の値
から外れている場合に、負荷装置等の故障であると判断
して報知するので、電力量計および、電力量計と計量端
末器との接続の故障を早期に発見することのでき、電力
量計等の故障に気が付かずに消費電力量の管理を続ける
ことがなく、正確に消費電力量を管理することのできる
検針システムを提供できるという効果を奏する。According to the third aspect of the present invention, the timer measures a predetermined time, and the power consumption abnormality notifying means is provided when the central monitoring device is operating the load device, and the timer measures the predetermined time. When the power consumption during the time is out of the predetermined range, it is determined that the load device or the like is faulty, and the alarm is notified. The advantage is that it is possible to provide a meter reading system that can detect power failures at an early stage, and can manage power consumption accurately without noticing the failure of a watt-hour meter or the like without continuing to manage power consumption. To play.
【図１】本発明の第一実施例の検針システムの構成を示
すブロック図である。FIG. 1 is a block diagram showing a configuration of a meter reading system according to a first embodiment of the present invention.
【図２】上記検針システムの動作を説明するフローチャ
ートである。FIG. 2 is a flowchart illustrating an operation of the meter reading system.
【図３】本発明の第二実施例の検針システムの構成を示
すブロック図である。FIG. 3 is a block diagram illustrating a configuration of a meter reading system according to a second embodiment of the present invention.
【図４】上記検針システムの動作を説明するフローチャ
ートである。FIG. 4 is a flowchart illustrating the operation of the meter reading system.
【図５】従来の検針システムの構成を示すブロック図で
ある。FIG. 5 is a block diagram showing a configuration of a conventional meter reading system.
１ 計量端末器 １ａ 消費電力量入力手段 １ｂ 積算手段 １ｃ 送受信手段 ２ 中央監視装置 ２ａ 送受信手段 ２ｂ 主制御部 ２ｃ 消費電力異常報知手段 ２ｅ タイマ ３ 電力量計 ４ 負荷装置 ５ 計量端末器 ５ａ 消費電力量入力手段 ５ｂ 積算手段 ５ｃ 送受信手段 ５ｄ 消費電力異常報知手段 ５ｅ 動作検知手段 ５ｇ タイマ DESCRIPTION OF SYMBOLS 1 Measuring terminal 1a Power consumption input means 1b Integration means 1c Transmission / reception means 2 Central monitoring device 2a Transmission / reception means 2b Main control part 2c Power consumption abnormality notification means 2e Timer 3 Watt hour meter 4 Load device 5 Metering terminal 5a Power consumption Input means 5b Integration means 5c Transmission / reception means 5d Power consumption abnormality notification means 5e Operation detection means 5g Timer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−273200（ＪＰ，Ａ) 特開 平４−262264（ＪＰ，Ａ) 実開 昭61−105870（ＪＰ，Ｕ) 実開 昭63−130895（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01R 11/00 - 11/66 G01R 21/00 - 22/04 G08C 15/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-273200 (JP, A) JP-A-4-262264 (JP, A) Fully open sho 61-105870 (JP, U) Really open sho 63- 130895 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) G01R 11/00-11/66 G01R 21/00-22/04 G08C 15/00
Claims (3)
計から消費電力量を受信する消費電力量入力手段と、消
費電力量入力手段が受信する消費電力量を積算する積算
手段と、積算手段が積算する消費電力量を中央監視装置
に送信する送受信手段とを備える計量端末器において、
所定時間を計測するタイマと、負荷装置の動作状態を検
知する動作検知手段と、動作検知手段が負荷装置が動作
中であると検知した場合であって、タイマの計測する所
定時間の間に受け取った消費電力量の積算値が所定の範
囲の値から外れている場合に報知する消費電力異常報知
手段とを有することを特徴とする計量端末器。1. A power consumption input means for receiving power consumption from a watt hour meter for measuring the power consumption of a load device, an integration means for integrating the power consumption received by the power consumption input means, Transmitting and receiving means for transmitting to the central monitoring device the amount of power consumed by the means,
A timer for measuring a predetermined time; an operation detecting means for detecting an operation state of the load device; and a case where the operation detecting means detects that the load device is in operation, and receives the time during the predetermined time measured by the timer. A power consumption abnormality notification means for notifying when the integrated value of the power consumption is out of a predetermined range.
測する電力量計と、電力量計の出力する消費電力量を積
算して中央監視装置に送信する計量端末器と、計量端末
器からの消費電力量の積算値を管理する中央監視装置と
を有する検針システムにおいて、前記計量端末器は、所
定時間を計測するタイマと、負荷装置の動作状態を検知
する動作検知手段と、動作検知手段が負荷装置が動作中
であると検知した場合であって、タイマの計測する所定
時間の間に受け取った消費電力量の積算値が所定の範囲
の値から外れている場合に報知する消費電力異常報知手
段とを有することを特徴とする検針システム。2. A load device, a watt hour meter for measuring the amount of power consumption of the load device, a weighing terminal for integrating the amount of power consumption output from the watt hour meter and transmitting the integrated amount to the central monitoring device, and a weighing terminal. A meter monitoring system having a central monitoring device that manages an integrated value of power consumption from the meter, wherein the measuring terminal device includes a timer for measuring a predetermined time, an operation detection unit for detecting an operation state of the load device, and an operation detection device. The power consumption to be notified when the means detects that the load device is operating and the integrated value of the power consumption received during the predetermined time measured by the timer is out of a predetermined range. A meter reading system comprising: an abnormality notification unit.
測する電力量計と、電力量計の出力する消費電力量を積
算して中央監視装置に送信する計量端末器と、計量端末
器からの消費電力量の積算値を管理し、負荷装置の動作
／停止を制御する中央監視装置とを有する検針システム
において、前記中央監視装置は、所定時間を計測するタ
イマと、負荷装置が動作中であって、タイマの計測する
所定時間の間に受け取った消費電力量が所定の範囲の値
から外れている場合に報知する消費電力異常報知手段と
を有することを特徴とする検針システム。3. A load device, a watt hour meter for measuring the amount of power consumption of the load device, a weighing terminal for integrating the amount of power consumption output from the watt hour meter and transmitting the integrated amount to the central monitoring device, and a weighing terminal. In the meter reading system having a central monitoring device that manages an integrated value of power consumption from the device and controls operation / stop of the load device, the central monitoring device includes a timer that measures a predetermined time, and a load device that is operating. And a power consumption abnormality notification means for notifying when the power consumption received during a predetermined time measured by the timer is out of a predetermined range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7126249A JP3013753B2 (en) | 1995-05-25 | 1995-05-25 | Weighing terminal and meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7126249A JP3013753B2 (en) | 1995-05-25 | 1995-05-25 | Weighing terminal and meter reading system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08320347A JPH08320347A (en) | 1996-12-03 |
| JP3013753B2 true JP3013753B2 (en) | 2000-02-28 |
Family
ID=14930503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7126249A Expired - Lifetime JP3013753B2 (en) | 1995-05-25 | 1995-05-25 | Weighing terminal and meter reading system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3013753B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6525779B1 (en) | 1998-12-21 | 2003-02-25 | Funai Electric Co. Ltd. | Television receiver for receiving two different broadcast forms |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101031804B1 (en) * | 2008-12-16 | 2011-04-29 | 김병직 | Challenge and abnormality detection device and method in power meter and surrounding power system equipment and devices |
| JP2012242219A (en) * | 2011-05-18 | 2012-12-10 | Panasonic Industrial Devices Sunx Tatsuno Co Ltd | Power measurement device |
| JP5583830B1 (en) * | 2013-09-27 | 2014-09-03 | 日本瓦斯株式会社 | LP gas meter pointer value input check system and method |
| JP6164307B2 (en) * | 2014-01-09 | 2017-07-19 | 富士通株式会社 | Analysis method, analysis program, and analysis apparatus |
| JP6381498B2 (en) * | 2015-09-02 | 2018-08-29 | 三菱電機ビルテクノサービス株式会社 | Weighing meter state change detection device and program |
| MX377914B (en) * | 2015-12-21 | 2025-03-11 | Landis & Gyr Innovations Inc | Detecting an error condition by monitoring a resource flow at a premises |
| CN106597342B (en) * | 2016-12-28 | 2023-08-15 | 国家电网公司 | On-site system checking device for substation gateway collection |
-
1995
- 1995-05-25 JP JP7126249A patent/JP3013753B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6525779B1 (en) | 1998-12-21 | 2003-02-25 | Funai Electric Co. Ltd. | Television receiver for receiving two different broadcast forms |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08320347A (en) | 1996-12-03 |
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