JP2005165770A - Measurement system and measuring apparatus - Google Patents

Measurement system and measuring apparatus Download PDF

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JP2005165770A
JP2005165770A JP2003405011A JP2003405011A JP2005165770A JP 2005165770 A JP2005165770 A JP 2005165770A JP 2003405011 A JP2003405011 A JP 2003405011A JP 2003405011 A JP2003405011 A JP 2003405011A JP 2005165770 A JP2005165770 A JP 2005165770A
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JP2005165770A5 (en
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Shinji Shinohara
慎二 篠原
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To secure synchronicity of data in a shorter cycle of data collection than a system with a telegram for data latch such as an identification code attached to the head of a series of data requests of measurement data collector. <P>SOLUTION: The measuring system comprises measuring apparatus 1A to 1N for latching measurement data of a measured element on a data buffer 132 and a measurement data collector 3 for collecting the measurement data of the measured elements to be collected by being transmitted by the measurement data latched on the data buffer 132 according to the data request. The system is provided with a transmission history file 133 for recording transmission history of whether or not the measurement data latched on the data buffer 132 have been transmitted to the measurement data collector 3 and, on the basis of transmission history information recorded in the transmission history file 133, the measurement data of the measured element are latched on the buffer data. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、例えばビルや工場等の受配電監視システムなどに適用され、中央監視装置等の計測データ収集元へ計測装置から計測データを伝送する計測システムおよび当該計測システムに使用される計測装置に関するものである。   The present invention relates to a measurement system that is applied to a power distribution monitoring system such as a building or a factory, and transmits measurement data from the measurement device to a measurement data collection source such as a central monitoring device, and a measurement device used in the measurement system. Is.

計測装置から計測データ収集元へ計測データを伝送する従来のシステムにおいては、例えば、特開平５−２０７５５７号公報（特許文献１）にも掲載されているように、監視盤（計測データ収集元）からのデ−タ要求は、計測装置における計測デ−タのデ−タメモリへの保存処理とは関係無く行われる為、デ−タ要求に応じて前記デ−タメモリの計測デ−タを順次読み出していくと、時間のずれが生じ、当該読み出した計測デ−タは、同時期のデ−タではなくなり、計測デ−タを誤って読み出す恐れがある。そこで、計測デ−タを誤って読み出す恐れを解消するように、前記特開平５−２０７５５７号公報（特許文献１）に記載のシステムは空調機器の制御システムに適用した事例ではあるが、監視盤（計測データ収集元）からのデータ要求の先頭部に識別コードを付加し、当該識別コードによって、前記デ−タメモリの計測デ−タを伝送用バッファへラッチすることでデータの同時性を確保している。   In a conventional system for transmitting measurement data from a measurement device to a measurement data collection source, for example, as disclosed in Japanese Patent Laid-Open No. 5-207557 (Patent Document 1), a monitoring panel (measurement data collection source) Since the data request from is performed regardless of the storage process of the measurement data in the data memory in the measuring device, the measurement data in the data memory is sequentially read in response to the data request. As time passes, a time lag occurs, and the read measurement data is not the same period data, and there is a possibility that the measurement data is read out in error. Therefore, the system described in Japanese Patent Laid-Open No. 5-207557 (Patent Document 1) is an example applied to a control system of an air conditioner so as to eliminate the possibility of erroneously reading out measurement data. An identification code is added to the head of the data request from the (measurement data collection source), and the data synchronization is ensured by latching the measurement data in the data memory to the transmission buffer by the identification code. ing.

特開平５−２０７５５７号公報（図１及び図２、段落番号０００１〜０００９）JP-A-5-207557 (FIGS. 1 and 2, paragraph numbers 0001 to 0009)

特許文献１に記載のような従来のシステムにおいては、監視盤（計測データ収集元）からのデータ要求の先頭部の識別コードによって計測データを伝送バッファへラッチするようにしてあるので、監視盤（計測データ収集元）がデータ収集した計測デ−タの同時性を確保することはできるが、監視盤（計測データ収集元）の一連のデータ要求の先頭に必ず識別コードを付加して送信する必要があり、監視盤（計測データ収集元）によるデータ収集の周期が長くなる。   In the conventional system as described in Patent Document 1, the measurement data is latched into the transmission buffer by the identification code at the head of the data request from the monitoring board (measurement data collection source). (Measurement data collection source) can ensure the simultaneity of the measurement data collected, but it must be sent with an identification code added to the head of a series of data requests on the monitoring panel (measurement data collection source) And the period of data collection by the monitoring panel (measurement data collection source) becomes longer.

この発明は、前述のような従来の実情に鑑みてなされたもので、計測システムにおいて、計測データ収集元の一連のデータ要求の先頭に識別コードのようなデータラッチ用の電文を付加した従来のシステムに比べ、短いデータ収集周期でデータの同時性を確保することができるようにすることを目的とするものである。   The present invention has been made in view of the conventional situation as described above, and in a measurement system, a data latch telegram such as an identification code is added to the head of a series of data requests from a measurement data collection source. The object of the present invention is to ensure data simultaneity in a shorter data collection cycle than the system.

この発明に係る計測システムは、被計測要素の計測デ−タをデ−タバッファにラッチする計測装置、及びデ−タ要求により前記デ−タバッファにラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元を備えた計測システムであって、前記デ−タバッファにラッチされている計測デ−タを前記計測データ収集元へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイルを有し、この伝送履歴ファイルの記録情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチするものである。   The measurement system according to the present invention is transmitted from the measurement device that latches the measurement data of the element to be measured in the data buffer, and the measurement data latched in the data buffer in response to a data request. A measurement system having a measurement data collection source that collects measurement data of a measurement target element to be collected by the method, wherein the measurement data latched in the data buffer is transmitted to the measurement data collection source A transmission history file for recording whether or not the transmission history is recorded, and the measurement data of the measured element is latched in the data buffer based on the record information of the transmission history file.

この発明は、被計測要素の計測デ−タをデ−タバッファにラッチする計測装置、及びデ−タ要求により前記デ−タバッファにラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元を備えた計測システムであって、前記デ−タバッファにラッチされている計測デ−タを前記計測データ収集元へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイルを有し、この伝送履歴ファイルの記録情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチするので、従来のシステムのように計測データ収集元の一連のデータ要求の先頭に識別コードのようなデータラッチ用の電文を付加する必要は無く、計測データ収集元からは計測データ要求のみで伝送用バッファ内の計測データのラッチを行うことができ、データ収集の周期が短時間となる効果がある。   According to the present invention, a measurement device that latches measurement data of an element to be measured in a data buffer, and data that is collected by being transmitted from the measurement data latched in the data buffer in response to a data request Transmission of whether or not the measurement data latched in the data buffer is transmitted to the measurement data collection source, the measurement system having a measurement data collection source for collecting measurement data of the measured element A transmission history file for recording the history, and the measurement data of the element to be measured is latched in the data buffer based on the record information of the transmission history file. There is no need to add a data latch message such as an identification code at the beginning of a series of data requests, and only the measurement data request from the measurement data collection source is stored in the transmission buffer. Can be performed latching measurement data, the effect of the period of data collection becomes short.

実施の形態１．
以下、この発明の実施の形態１を例えばビルや工場等の受配電監視システムなどに使用する計測システムに適用した場合の事例について図１〜図３により説明する。図１は計測システム全体の構成の一例を示すブロック図、図２は図１における伝送機能付き計測装置の伝送バッファ制御部の動作を説明するフローチャートの一例を示す図、図３は伝送履歴の一例としての伝送有り無しフラグのデータ構成の一例を示す図である。 Embodiment 1 FIG.
A case where the first embodiment of the present invention is applied to a measurement system used in a power distribution monitoring system such as a building or factory will be described below with reference to FIGS. FIG. 1 is a block diagram showing an example of the configuration of the entire measurement system, FIG. 2 is a diagram showing an example of a flow chart for explaining the operation of the transmission buffer control unit of the measuring apparatus with a transmission function in FIG. 1, and FIG. It is a figure which shows an example of a data structure of the flag with / without transmission as.

図１において、計測システムは、電圧や電流等の被計測量を計測しその結果を計測デ−タとして保存する伝送機能付きの複数の計測装置１Ａ〜１Ｎと、これら複数の計測装置１Ａ〜１Ｎに対して伝送ライン２を介してデ−タ要求を行い当該計測装置１Ａ〜１Ｎに保存された前記計測デ−タから前記被計測量の状態の監視に利用したりしたりビルや工場等の各種機器の制御に利用したりする計測データ収集元３とから構成されている。   In FIG. 1, the measurement system measures a measurement amount such as voltage and current and stores a plurality of measurement devices 1A to 1N having a transmission function for storing the measurement results as measurement data, and the plurality of measurement devices 1A to 1N. The data request is made via the transmission line 2 to be used for monitoring the state of the measured quantity from the measurement data stored in the measuring devices 1A to 1N, or the building, factory, etc. It consists of a measurement data collection source 3 that is used to control various devices.

前記計測装置１Ａ〜１Ｎは、それぞれ、Ａ／Ｄ変換回路１１と、計測演算部１２と、メモリ１３と、伝送用バッファ制御部１４と、伝送制御部１５とで構成されている。なお、前記計測装置〜１Ｎについては、その構成および機能が前記計測装置１Ａと同じであるので、前記Ａ／Ｄ変換回路１１、前記計測演算部１２、前記メモリ１３、前記伝送用バッファ制御部１４、および前記伝送制御部１５の図示は省略してある。   Each of the measurement devices 1A to 1N includes an A / D conversion circuit 11, a measurement calculation unit 12, a memory 13, a transmission buffer control unit 14, and a transmission control unit 15. Since the measurement device to 1N have the same configuration and function as the measurement device 1A, the A / D conversion circuit 11, the measurement calculation unit 12, the memory 13, and the transmission buffer control unit 14 are used. The transmission control unit 15 is not shown.

前記メモリ１３は、データメモリ１３１と、伝送用バッファ１３２と、伝送履歴ファイル（本実施の形態では伝送履歴の一例として伝送有り無しフラグを例示してある）１３３とを有している。   The memory 13 includes a data memory 131, a transmission buffer 132, and a transmission history file 133 (in this embodiment, a transmission presence / absence flag is illustrated as an example of a transmission history).

前記Ａ／Ｄ変換回路１１は、図示しない変圧器や変流器などにより外部から入力された電圧，電流等の被計測要素のアナログ値の計測量をデジタル値に変換するものである。   The A / D conversion circuit 11 converts a measured amount of an analog value of an element to be measured such as a voltage and a current input from the outside by a transformer or a current transformer (not shown) into a digital value.

前記計測演算部１２は、前記Ａ／Ｄ変換回路１１の出力を入力し前記デジタル値の被計測量から電圧実効値、電流実効値、電力、無効電力、力率、電力量、無効電力量等の被計測要素の値を演算により導出する。この演算により導出された各種の被計測要素の値（各種計測量）等の演算結果は、逐次、前記データメモリ１３１へ計測デ−タとして記憶される。   The measurement calculation unit 12 receives the output of the A / D conversion circuit 11, and based on the measured value of the digital value, the voltage effective value, current effective value, power, reactive power, power factor, power amount, reactive power amount, etc. The value of the element to be measured is derived by calculation. Calculation results such as values (various measurement amounts) of various measured elements derived by this calculation are sequentially stored in the data memory 131 as measurement data.

前記計測デ−タ収集元３は、前記伝送ライン２を介して伝送機能付きの前記計測装置１Ａ〜１Ｎへデータ要求を行う。前記計測デ−タ収集元３が前記計測装置１Ａへデータ要求を行うと、計測装置１Ａ内の伝送制御部１５が当該データ要求を受信し、前記伝送バッファ制御部１４が前記伝送用バッファ１３２内の当該データ要求に該当する計測データを読み出し、読み出された計測データを前記伝送制御部１５が前記計測デ−タ収集元３へ伝送する。このようにして前記計測デ−タ収集元３によるデータ収集は行われる。なお、前記計測装置〜１Ｎについても、前記計測装置１Ａの場合と同様にして前記計測デ−タ収集元３によるデータ収集が行われる。   The measurement data collection source 3 makes a data request to the measurement devices 1A to 1N with a transmission function via the transmission line 2. When the measurement data collection source 3 makes a data request to the measurement device 1A, the transmission control unit 15 in the measurement device 1A receives the data request, and the transmission buffer control unit 14 stores the data in the transmission buffer 132. The measurement data corresponding to the data request is read out, and the transmission control unit 15 transmits the read measurement data to the measurement data collection source 3. In this way, data collection by the measurement data collection source 3 is performed. Note that the data collection by the measurement data collection source 3 is also performed for the measurement devices to 1N in the same manner as the measurement device 1A.

なお、前記計測デ−タ収集元３と前記計測装置１Ａ〜１Ｎとの間のネットワーク通信のネットワークプロトコルは特に問わないが、後述のように、前記デ−タバッファ１３２にラッチされている計測デ−タを前記計測データ収集元３へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイル１３３を設け、この伝送履歴ファイル１３３の記録情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファ１３２にラッチするようにしてあることから、データラッチコマンドの無い既設の計測システムに適用できるので、例えば、PROFIBUS、CC−LINK（Control & Communication Link）など、データラッチコマンドの無いネットワークプロトコルを利用したポーリング方式でデータ収集をすることが好ましい。   The network protocol for network communication between the measurement data collection source 3 and the measurement apparatuses 1A to 1N is not particularly limited, but the measurement data latched in the data buffer 132 as will be described later. A transmission history file 133 is provided for recording a transmission history indicating whether or not the data has been transmitted to the measurement data collection source 3, and the measurement data of the measured element is stored in the data based on the recording information of the transmission history file 133. Since it is latched in the data buffer 132, it can be applied to existing measurement systems without data latch commands. For example, network protocols without data latch commands such as PROFIBUS and CC-LINK (Control & Communication Link) are used. It is preferable to collect data by the polling method.

次に、前記伝送バッファ制御部１４の動作を図２のフローチャートにより説明する。   Next, the operation of the transmission buffer controller 14 will be described with reference to the flowchart of FIG.

本計測装置を起動すると、伝送バッファ制御部１４は、先ず、伝送履歴ファイル１３３の（本実施の形態においては伝送履歴の例として伝送有り無しのフラグで説明する）の初期化を行い、図３（ａ）に示すように、電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等の各被計測要素に対応のフラグの全てを、「有り（１）」に設定する（ステップＳＴ２０１）。このステップＳＴ２０１における初期化によって、計測デ−タ収集元３からの最初のデータ要求時には必ず、データメモリ１３１から伝送用バッファ１３２へ、各被計測要素の全計測データがラッチされる。   When the measurement apparatus is activated, the transmission buffer control unit 14 first initializes the transmission history file 133 (in the present embodiment, described as a transmission history flag as an example of transmission history), and FIG. As shown in (a), all the flags corresponding to each measured element such as voltage, current, power, reactive power, power factor, power amount, reactive power amount,. (Step ST201). By the initialization in step ST201, all measurement data of each measured element is latched from the data memory 131 to the transmission buffer 132 whenever the first data is requested from the measurement data collection source 3.

次に、伝送バッファ制御部１４は伝送制御部１０８からのデータ要求を待ち、伝送制御部１０８からのデータ要求の有無を判定する（ステップＳＴ２０２）。このステップＳＴ２０２においては、伝送制御部１０８からのデータ要求（＝最初のデータ要求）が発生すると、「データ要求あり（ＹＥＳ）」と判定する。   Next, the transmission buffer control unit 14 waits for a data request from the transmission control unit 108, and determines whether there is a data request from the transmission control unit 108 (step ST202). In step ST202, when a data request (= first data request) is generated from the transmission control unit 108, it is determined that “data request is present (YES)”.

前記ステップＳＴ２０２が「データ要求あり（ＹＥＳ）」と判定すると、伝送履歴ファイル１３３の伝送履歴（伝送有り無しフラグ）に基づいて当該デ−タ要求に該当する被検出要素の計測データの伝送有り無しを判定する（ステップＳＴ２０３）。   If the step ST202 determines that “data request is present (YES)”, the measurement data of the detected element corresponding to the data request is transmitted based on the transmission history (transmission present flag) of the transmission history file 133. Is determined (step ST203).

前記ステップＳＴ２０３において、計測デ−タ収集元３からの最初のデータ要求時には、前述のように伝送履歴を表すフラグの全てが「伝送有り（１）」となっている（図３（ａ）を参照）。従って、計測デ−タ収集元３からの最初のデータ要求時に、どの被計測要素のデータ要求が計測デ−タ収集元３から行われても、伝送バッファ制御部１４は、データメモリ１３１から全計測データを伝送用バッファ１３２へラッチし（ステップＳＴ２０４）、   In step ST203, at the time of the first data request from the measurement data collection source 3, all the flags indicating the transmission history are “with transmission (1)” as described above (see FIG. 3A). reference). Therefore, the transmission buffer control unit 14 sends all data from the data memory 131 to the measurement data collection source 3 regardless of which data request is made from the measurement data collection source 3 at the time of the first data request from the measurement data collection source 3. The measurement data is latched in the transmission buffer 132 (step ST204),

伝送履歴ファイル１３３をリセットして、伝送有り無しフラグの全データを「伝送無し（０）」（図３（ｂ）を参照）へ変更する（ステップＳＴ２０５）。   The transmission history file 133 is reset, and all the data in the transmission presence / absence flag is changed to “no transmission (0)” (see FIG. 3B) (step ST205).

前述のようにステップＳＴ２０４においてデータメモリ１３１から全計測データが伝送用バッファ１３２へラッチされ、前記ステップＳＴ２０５において伝送有り無しフラグの全データが「伝送無し（０）」へ変更されると、伝送バッファ制御部１４は、計測デ−タ収集元３からデータ要求された被計測要素の計測データを伝送用バッファ１３２から読み出して伝送制御部１５へ出力し（ステップＳＴ２０６）、   As described above, in step ST204, all measurement data is latched from the data memory 131 to the transmission buffer 132. When all the data in the transmission presence / absence flag is changed to “no transmission (0)” in step ST205, the transmission buffer The control unit 14 reads out the measurement data of the measured element whose data is requested from the measurement data collection source 3 from the transmission buffer 132 and outputs it to the transmission control unit 15 (step ST206).

伝送用バッファ１３２から読み出した計測データに対応する伝送履歴ファイル１３３の被計測要素の伝送有り無しフラグを「伝送有り（１）」（図３（ｃ）を参照）に変更する（ステップＳＴ２０７）。なお、図３（ｃ）は、計測デ−タ収集元３からのデータ要求が電圧、電流、電力の３つの被計測要素であり、当該３つの被計測要素の各計測データを伝送用バッファ１３２から読み出して伝送制御部１５へ出力し、伝送用バッファ１３２から読み出した計測データに対応する伝送履歴ファイル１３３の被計測要素（前記３つの被計測要素）の伝送有り無しフラグを「伝送有り（１）」に変更した場合の事例を示してある。   The transmission presence / absence flag of the measured element of the transmission history file 133 corresponding to the measurement data read from the transmission buffer 132 is changed to “transmission present (1)” (see FIG. 3C) (step ST207). In FIG. 3C, the data request from the measurement data collection source 3 is three measured elements of voltage, current, and power, and each measurement data of the three measured elements is transferred to the buffer 132 for transmission. Is transmitted to the transmission control unit 15, and the transmission presence / absence flag of the measured element (the three measured elements) of the transmission history file 133 corresponding to the measurement data read from the transmission buffer 132 is set to “with transmission (1 ) ”Shows an example of the change.

一方、前記ステップＳＴ２０３での判定結果が「伝送無し（ＮＯ）」の場合は、伝送用バッファ１３２にラッチされている計測デ−タは変更せずに、前記ステップＳＴ２０６へ進み、伝送用バッファ１３２に既にラッチされている計測データから、前記データ要求された計測データを読み出して伝送制御部１５へ出力する。   On the other hand, if the determination result in step ST203 is "No transmission (NO)", the measurement data latched in the transmission buffer 132 is not changed, and the process proceeds to step ST206, where the transmission buffer 132 is transmitted. The measurement data requested for the data is read out from the measurement data already latched in step (b) and output to the transmission control unit 15.

なお、図３は、伝送履歴ファイル１３３の伝送履歴の一例として「伝送有り無しフラグ（１）（０）」を使用した場合のファイル構造およびファイル内情報の一例を、計測装置１の装置起動時（ａ）、リセット時（ｂ）、および計測デ−タ収集元３からのデ−タ要求への応答後、の夫々の場合について例示してあり、計測データ被計測要素毎に伝送有り無しの情報（フラグ）を付加している。   3 shows an example of the file structure and information in the file when the “transmission present / non-transmission flag (1) (0)” is used as an example of the transmission history of the transmission history file 133. (A) At the time of resetting (b), and after responding to the data request from the measurement data collection source 3 are illustrated as examples, and there is no transmission for each measurement data measured element Information (flag) is added.

以下、監視計測システム全体の動作を具体的に説明する。 Hereinafter, the operation of the entire monitoring measurement system will be specifically described.

前述のように構成された伝送機能付きの計測装置においては、中央監視装置等の計測デ−タ収集元３が、各種被計測要素のうちの電流、電圧、電力について、ポ−リング方式により、電流、電圧、電力の順に、計測装置１Ａに対して一連のデータ要求をする場合の例について説明する（計測装置１Ａ〜１Ｎを代表して計測装置１Ａについて説明する）と、先ず、計測装置１Ａを起動すると、図２におけるステップＳＴ２０１において、伝送バッファ制御部１４は、伝送履歴ファイル１３３の全ての被計測要素（即ち、電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の夫々の伝送履歴情報である伝送有り無しフラグの伝送有り無しを、図３（ａ）に示すように、一度に（ミクロには同時とは限らない）全て「伝送有り（１）」に設定する。   In the measuring device with the transmission function configured as described above, the measurement data collection source 3 such as the central monitoring device uses a polling method for the current, voltage, and power among the various measured elements. An example in which a series of data requests are made to the measurement device 1A in the order of current, voltage, and power (the measurement device 1A will be described as a representative of the measurement devices 1A to 1N) will be described. 2, in step ST201 in FIG. 2, the transmission buffer control unit 14 makes all measured elements (that is, voltage, current, power, reactive power, power factor, power amount, reactive power amount, transmission history file 133). , Etc.), the transmission presence / absence flag of the transmission presence / absence flag, as shown in FIG. 3A, all at once (not necessarily at the same time in the micro) ) Is set to ".

計測装置１Ａの起動後に、計測デ−タ収集元３から、先ず、計測装置１Ａに対して電流値の要求があると、前述のように、伝送履歴ファイル１３３における電流に関する伝送有り無しフラグが、図３（ａ）に示すように「伝送有り（１）」であるので、データメモリ１３１の全ての被計測要素の計測データの全てが伝送用バッファ１３２へラッチされ、伝送用バッファ１３２へラッチされた前記全計測データのうちの電流の計測デ−タが計測デ−タ収集元３へ伝送される。   After the measurement device 1A is activated, when the measurement data collection source 3 first requests a current value from the measurement device 1A, as described above, the transmission presence / absence flag related to the current in the transmission history file 133 is displayed. As shown in FIG. 3A, since “transmission is present (1)”, all the measurement data of all the measured elements in the data memory 131 are latched in the transmission buffer 132 and latched in the transmission buffer 132. In addition, current measurement data out of all the measurement data is transmitted to the measurement data collection source 3.

この時、図３（ｂ）に示すように、伝送履歴ファイル１３３における全ての被計測要素の有り無しフラグが「伝送無し（０）」に変更設定された（図２のステップＳＴ２０５）後、電流の伝送履歴ファイル１３３における電流の伝送有り無しフラグのみ「伝送有り（１）」に変更される（図２のステップＳＴ２０７）。   At this time, as shown in FIG. 3B, after the presence / absence flags of all measured elements in the transmission history file 133 are changed to “no transmission (0)” (step ST205 in FIG. 2), the current Only the transmission / non-transmission flag of current in the transmission history file 133 is changed to “transmission present (1)” (step ST207 in FIG. 2).

次に、計測装置１Ａに対して電圧値の要求があると、伝送履歴ファイル１３３における電圧に関する伝送有り無しフラグは、前述のように、図２のステップＳＴ２０５において「伝送無し（０）」に変更設定されているので、伝送用バッファ１３２内の電圧の計測デ−タが、伝送バッファ制御部１４により取り出され、伝送制御部１５から伝送ライン２を介して計測デ−タ収集元３へ伝送されると共に、伝送履歴ファイル１３３における電圧の伝送有り無しフラグは「伝送有り（１）」に変更される（図２のステップＳＴ２０７）。   Next, when there is a voltage value request to the measuring device 1A, the transmission presence / absence flag relating to the voltage in the transmission history file 133 is changed to “no transmission (0)” in step ST205 of FIG. 2 as described above. Therefore, the measurement data of the voltage in the transmission buffer 132 is taken out by the transmission buffer control unit 14 and transmitted from the transmission control unit 15 to the measurement data collection source 3 through the transmission line 2. At the same time, the voltage transmission presence / absence flag in the transmission history file 133 is changed to “transmission present (1)” (step ST207 in FIG. 2).

更に、計測装置１Ａに対して電力値の要求があると、伝送履歴ファイル１３３における電力に関する伝送有り無しフラグも、前述のように、図２のステップＳＴ２０５において「伝送無し（０）」に変更設定されているので、伝送用バッファ１３２内の電力の計測デ−タが、伝送バッファ制御部１４により取り出され、伝送制御部１５から伝送ライン２を介して計測デ−タ収集元３へ伝送されると共に、伝送履歴ファイル１３３における電力の伝送有り無しフラグは「伝送有り（１）」に変更される。   Further, when there is a request for a power value from the measuring apparatus 1A, the transmission presence / absence flag relating to power in the transmission history file 133 is also changed to “no transmission (0)” in step ST205 of FIG. 2 as described above. Therefore, the power measurement data in the transmission buffer 132 is taken out by the transmission buffer control unit 14 and transmitted from the transmission control unit 15 to the measurement data collection source 3 through the transmission line 2. At the same time, the power transmission presence / absence flag in the transmission history file 133 is changed to “transmission present (1)”.

前述のようにして、計測デ−タ収集元３からの電流、電圧、電力についての一連のデータ要求に対する計測装置１Ａの応答動作により、前述のように伝送履歴ファイル１３３における電流、電圧、電力の伝送履歴情報である伝送有り無しフラグが、前述のように、何れも「伝送有り（１）」に変更された状態が、図３（ｃ）の状態である。   As described above, the response operation of the measuring device 1A to a series of data requests regarding the current, voltage, and power from the measurement data collection source 3 causes the current, voltage, and power in the transmission history file 133 as described above. The state where the transmission presence / absence flag, which is transmission history information, is changed to “transmission presence (1)” as described above is the state shown in FIG.

再び、計測デ−タ収集元３から電流値の要求が発生すると、伝送履歴ファイル１３３における電流の伝送履歴である伝送有り無しフラグは、前述のように、図３（ｃ）に示すように、「伝送有り（１）」に変更設定されているので、データメモリ１３１の全ての被計測要素（即ち、電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測デ−タの全てが伝送用バッファ１３２へラッチされ、伝送用バッファ１３２にラッチされている前記全計測データの更新が行われる。この時、図３（ｂ）に示すように、全ての被計測要素（即ち、電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の夫々の伝送有り無しフラグの全てが「伝送無し（０）」に設定された（図２のステップＳＴ２０５）後、電流の伝送有り無しフラグのみ「伝送有り（１）」に変更される（図２のステップＳＴ２０７）。   When a request for a current value occurs again from the measurement data collection source 3, the transmission presence / absence flag, which is the current transmission history in the transmission history file 133, is as shown in FIG. Since it is changed and set to “with transmission (1)”, all measured elements of the data memory 131 (that is, voltage, current, power, reactive power, power factor, power amount, reactive power amount, etc.) ) Are all latched in the transmission buffer 132, and all the measurement data latched in the transmission buffer 132 are updated. At this time, as shown in FIG. 3B, all measured elements (ie, voltage, current, power, reactive power, power factor, power amount, reactive power amount, etc.) are transmitted. After all the non-transmission flags are set to “no transmission (0)” (step ST205 in FIG. 2), only the non-transmission flag for current transmission is changed to “transmission present (1)” (step ST207 in FIG. 2). .

前述のようにして、計測デ−タ収集元３が、各種被計測要素のうちの電流、電圧、電力について、ポ−リング方式により、電流、電圧、電力の順に、計測装置１Ａに対して一連のデータ要求をした場合、計測装置１Ａから計測デ−タ収集元３へ伝送される電流と電圧と電力の各計測デ−タは、同時期に計測、演算された各計測デ−タとなる。即ち、計測デ−タ収集元３からのデ−タ要求が、計測デ−タのデ−タメモリへの保存処理と同期を取らずに行われても、伝送バッファ１３２から取り出す電流、電圧、電力の計測デ−タは、時間的にずれた計測デ−タとなるようなことはなく、しかも、前述の従来システムのように前記一連のデータ要求の先頭に識別コードを付加しなくてもよいので、当該識別コードを付加した従来システムに比べ、計測デ−タ収集元３のデータ収集の周期は短くなり、例えば、計測デ−タ収集元３の収集データを被計測量の状態の監視に利用する場合には表示操作してから画面表示されるまでの時間が短くなったり、また、例えば計測デ−タ収集元３の収集データをビルや工場等の各種機器の制御に利用する場合には当該制御速度が速くなったりする。   As described above, the measurement data collection source 3 applies a series of current, voltage, and power to the measuring apparatus 1A in the order of current, voltage, and power in accordance with the polling method for the various measured elements. When the data request is made, the current, voltage, and power measurement data transmitted from the measurement apparatus 1A to the measurement data collection source 3 are the measurement data calculated and calculated at the same time. . That is, even if the data request from the measurement data collection source 3 is performed without being synchronized with the storage process of the measurement data in the data memory, the current, voltage, and power extracted from the transmission buffer 132 This measurement data does not become time-shifted measurement data, and it is not necessary to add an identification code to the head of the series of data requests as in the conventional system described above. Therefore, compared with the conventional system to which the identification code is added, the data collection cycle of the measurement data collection source 3 is shortened. For example, the collected data of the measurement data collection source 3 is used for monitoring the state of the measured amount. When using, the time from display operation to screen display is shortened, or when the collected data of the measurement data collection source 3 is used for controlling various devices such as buildings and factories, for example. The control speed becomes faster.

前述のように、伝送履歴ファイル１３３を設け、伝送バッファ制御部１４により伝送履歴ファイル１３３における被計測要素毎の電流の伝送有り無しフラグ等の伝送履歴情報に基づいてデータメモリ１３１から伝送用バッファ１０５へのラッチを制御するので、前述の従来システムのように前記計測デ−タ収集元３の一連のデータ要求の先頭に識別コードを付加する等、計測デ−タ収集元３から前記伝送用バッファ１０５への計測デ−タのラッチを行わせるため手段を不要にすることができ、計測デ−タ収集元３のデータ収集の周期が短くなる。   As described above, the transmission history file 133 is provided, and the transmission buffer control unit 14 extracts the transmission buffer 105 from the data memory 131 based on the transmission history information such as a current transmission presence / absence flag for each measured element in the transmission history file 133. Therefore, as in the above-described conventional system, an identification code is added to the head of a series of data requests of the measurement data collection source 3, and the transmission buffer is transferred from the measurement data collection source 3. Since the measurement data is latched to 105, no means is required, and the data collection period of the measurement data collection source 3 is shortened.

また、計測デ−タ収集元３のデータ収集プログラムも、従来のように複数のデータ要求の先頭に計測データをラッチさせるフラグなどの要求を付加する構造に比較し、データ要求、データ受信の繰り返しの単純構造にできるので、プログラムの作成やメンテナンスも容易になる。   In addition, the data collection program of the measurement data collection source 3 also repeats data request and data reception in comparison with a conventional structure in which a request such as a flag for latching measurement data is added to the head of a plurality of data requests. This makes it easy to create and maintain programs.

なお、この発明の実施の形態１は前述の通りであるので、概念的に纏めると、被計測要素（電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測デ−タをデ−タバッファ１３２にラッチする計測装置１Ａ〜１Ｎ、及びデ−タ要求により前記デ−タバッファ１３２にラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元３を備えた計測システムであって、前記デ−タバッファ１３２にラッチされている計測デ−タを前記計測データ収集元３へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイル１３３を有し、この伝送履歴ファイル１３３に記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチする計測システムである。   Since Embodiment 1 of the present invention is as described above, the elements to be measured (voltage, current, power, reactive power, power factor, power amount, reactive power amount,... ) Of measurement data 1A to 1N for latching the measurement data in the data buffer 132, and the data to be collected by being transmitted from the measurement data latched in the data buffer 132 by the data request. Whether or not the measurement data latched in the data buffer 132 is transmitted to the measurement data collection source 3 in the measurement system including the measurement data collection source 3 that collects measurement data of measurement elements. A transmission history file 133 for recording the transmission history of the data, and a measurement system for latching the measurement data of the measured element in the data buffer based on the transmission history information recorded in the transmission history file 133 It is.

また、この発明の実施の形態１は前述の通りであるので、観点を変えて概念的に纏めると、被計測要素（電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測デ−タをデ−タバッファ１３２にラッチする計測装置１Ａ〜１Ｎ、及びデ−タ要求により前記デ−タバッファ１３２にラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元３を備えた計測システムであって、前記デ−タバッファ１３２にラッチされている計測デ−タを前記計測データ収集元３へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイル１３３を設け、この伝送履歴ファイル１３３に記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチする計測システムにおいて、前記計測デ−タ収集の通信方式をポーリング方式としてあると共に、その通信プロトコルとしてデータラッチコマンドが無い通信プロトコルを適用してある計測システムである。   In addition, since the first embodiment of the present invention is as described above, the elements to be measured (voltage, current, power, reactive power, power factor, electric energy, reactive electric energy, , Etc.) are transmitted from the measurement data latched in the data buffer 132 in response to a data request, and the measurement devices 1A to 1N that latch the measurement data in the data buffer 132. A measurement system including a measurement data collection source 3 that collects measurement data of elements to be measured to be collected. Measurement data latched in the data buffer 132 is sent to the measurement data collection source 3. A transmission history file 133 is provided for recording a transmission history indicating whether or not the transmission has been performed, and the measurement data of the measured element is latched in the data buffer based on the transmission history information recorded in the transmission history file 133. In measurement system, the measurement de - with certain communication method data collected as polling scheme, a measurement system that is applied to the communication protocol data latch command is not as its communication protocol.

また、この発明の実施の形態１は前述の通りであるので、更に観点を変えて概念的に纏めると、被計測要素（電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測デ−タをデ−タバッファ１３２にラッチし当該デ−タバッファ１３２にラッチしてある計測デ−タを計測データ収集元３へ伝送する計測装置であって、前記デ−タバッファ１３２にラッチされている計測デ−タを前記計測データ収集元３へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイル１３３を有し、この伝送履歴ファイル１３３に記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファ１３２にラッチする計測装置である。換言すれば、複数の被計測要素（電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測を行い、それらの計測データを伝送する機能を備え、かつ、伝送用に全ての計測データを一旦ラッチする伝送用バッファ１３２を備えた計測装置であって、計測データ収集元３からの計測データのデータ要求に対する応答の履歴を記憶する伝送有り無しの情報を被計測要素毎に記憶し、計測データ収集元３からのデータ要求に対し、伝送有り無しの情報が「伝送有り」の場合に、伝送用バッファ１３２内の全ての計測データを更新し、且つ、伝送有り無しの情報を「伝送無し」にリセットする計測装置であるとも言える。   In addition, since the first embodiment of the present invention is as described above, the elements to be measured (voltage, current, power, reactive power, power factor, power amount, reactive power amount) can be summarized from a different viewpoint. ,...) Is latched in the data buffer 132 and the measurement data latched in the data buffer 132 is transmitted to the measurement data collection source 3, A transmission history file 133 that records a transmission history indicating whether or not the measurement data latched in the data buffer 132 has been transmitted to the measurement data collection source 3, and the transmission history information recorded in the transmission history file 133 Based on this, the measuring device latches the measurement data of the element to be measured in the data buffer 132. In other words, it has a function of measuring a plurality of measured elements (voltage, current, power, reactive power, power factor, power amount, reactive power amount,...) And transmitting the measurement data. In addition, it is a measuring apparatus having a transmission buffer 132 that once latches all measurement data for transmission, and stores information on the history of responses to data requests for measurement data from the measurement data collection source 3. Is stored for each measured element, and in response to a data request from the measurement data collection source 3, if the information on the presence / absence of transmission is “with transmission”, all the measurement data in the transmission buffer 132 is updated, and It can also be said that this is a measuring device that resets the information with and without transmission to “without transmission”.

実施の形態２．
以下、この発明の実施の形態２を、計測データ収集元３が複数の計測装置から同じ被計測要素の計測データを順に収集する場合の一例ついて図４により説明する。図４（ａ）は計測システム全体のブロック図、図４（ｂ）は図４（ａ）における計測データ収集元３による計測データの収集手順を示すフローチャートの一例を示す図である。なお、図４（ａ）において、前述のこの発明の実施の形態１における図１と同一又は相当部分には同一符合を付してある。また、この発明の実施の形態２においては、前述のこの発明の実施の形態１と同一の機能、同一の動作については説明を割愛し、異なる機能および動作について主体的に説明する。 Embodiment 2. FIG.
Hereinafter, Embodiment 2 of the present invention will be described with reference to FIG. 4 as an example when the measurement data collection source 3 sequentially collects measurement data of the same measured element from a plurality of measurement devices. FIG. 4A is a block diagram of the entire measurement system, and FIG. 4B is a diagram showing an example of a flowchart showing a measurement data collection procedure by the measurement data collection source 3 in FIG. In FIG. 4A, the same or corresponding parts as those in FIG. 1 in the first embodiment of the present invention described above are denoted by the same reference numerals. In the second embodiment of the present invention, the description of the same function and the same operation as those of the first embodiment of the present invention will be omitted, and different functions and operations will be mainly described.

図４（ａ）及び図４（ｂ）は、何れも、計測データ収集元３が、５つの計測装置１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅから計測デ−タを収集する事例を示してある。具体的には、計測装置１Ａは電流、電圧、電力、電力量が収集され、計測装置１Ｂは電流、電圧が収集され、計側装置１Ｃ、１Ｄ、１Ｅは電流が収集される例を示してある。   4 (a) and 4 (b) show examples in which the measurement data collection source 3 collects measurement data from five measurement devices 1A, 1B, 1C, 1D, and 1E. Specifically, the measurement device 1A collects current, voltage, power, and electric energy, the measurement device 1B collects current and voltage, and the measuring devices 1C, 1D, and 1E show examples of collecting current. is there.

前記計測装置１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅは、何れも、前述の図１における前記計測装置１Ａと同一構成、同一機能である。   The measuring devices 1A, 1B, 1C, 1D, and 1E all have the same configuration and the same function as the measuring device 1A in FIG.

なお、計測システムにより計測され、収集される被計測要素は、図４（ａ）及び図４（ｂ）に特定されるものではなく、計測システムによって種々異なる。   It should be noted that the elements to be measured that are measured and collected by the measurement system are not specified in FIGS. 4A and 4B, but vary depending on the measurement system.

次に動作について説明する。   Next, the operation will be described.

中央監視装置等の計測データ収集元３は、計測装置１Ａに電流値データを要求し（ステップＳＴ４０１）、当該計測装置１Ａから電流の計測データを受信し、   The measurement data collection source 3 such as the central monitoring device requests current value data from the measurement device 1A (step ST401), receives current measurement data from the measurement device 1A,

その後、計側装置１Ｂに電流値データを要求し（ステップＳＴ４０２）、当該計測装置１Ｂから電流の計測データを受信し、   Thereafter, current value data is requested from the measuring device 1B (step ST402), current measurement data is received from the measurement device 1B,

その後、計側装置１Ｃに電流値データを要求し（ステップＳＴ４０３）、当該計測装置１Ｃから電流の計測データを受信し、   Thereafter, current value data is requested from the measuring device 1C (step ST403), current measurement data is received from the measurement device 1C,

その後、計側装置１Ｄに電流値データを要求し（ステップＳＴ４０４）、当該計測装置１Ｄから電流の計測データを受信し、   Thereafter, the current value data is requested from the measuring device 1D (step ST404), and the current measurement data is received from the measurement device 1D.

その後、計側装置１Ｅに電流値データを要求し（ステップＳＴ４０５）、当該計測装置１Ｅから電流の計測データを受信し、   Thereafter, the current value data is requested to the measuring device 1E (step ST405), the current measurement data is received from the measurement device 1E,

その後、計側装置１Ａに電圧値データを要求し（ステップＳＴ４０６）、当該計測装置１Ａから電圧の計測データを受信し、   Thereafter, voltage value data is requested from the measuring device 1A (step ST406), voltage measurement data is received from the measurement device 1A,

その後、計側装置１Ｂに電圧値データを要求し（ステップＳＴ４０７）、当該計測装置１Ｂから電圧の計測データを受信し、   Thereafter, voltage value data is requested from the measuring device 1B (step ST407), voltage measurement data is received from the measurement device 1B,

その後、計側装置１Ａに電力値データを要求し（ステップＳＴ４０８）、当該計測装置１Ａから電力の計測データを受信し、   Thereafter, the meter side device 1A is requested for power value data (step ST408), and the power measurement data is received from the measurement device 1A.

その後、計側装置１Ａに電力量値データを要求し（ステップＳＴ４０９）、当該計測装置１Ａから電力量の計測データを受信する。   Thereafter, the power amount value data is requested to the metering device 1A (step ST409), and the power amount measurement data is received from the measurement device 1A.

以上のように構成したので、前述の従来システムにおいてデータ要求の先頭に付加していた識別コードが不要であるので、前述のこの発明の実施の形態１と同様の作用効果があるのに加えて、全ての計測装置１Ａ〜１Ｅの電流値のデータ収集をタイムラグ少なく収集できるという効果がある。例えば、電流値をタイムラグ少なく収集できれば、中央監視装置等の計測デ−タ収集元３においては過電流状況をいち早く知ることができる。どの被計測要素から順に収集するかは計測デ−タ収集元３の収集デ−タが利用される監視や制御などの種別により異なる。   Since it is configured as described above, the identification code added to the head of the data request in the above-described conventional system is unnecessary, and in addition to the same operational effects as those of the first embodiment of the present invention described above. There is an effect that data collection of current values of all the measuring devices 1A to 1E can be collected with little time lag. For example, if the current value can be collected with a small time lag, the measurement data collection source 3 such as the central monitoring device can quickly know the overcurrent situation. Which element to be measured is collected in order depends on the type of monitoring or control in which the collected data of the measurement data collection source 3 is used.

なお、この発明の実施の形態２は前述の通りであるので、概念的に纏めると、被計測要素（電圧、電流、電力、無効電力、力率、電力量、無効電力量、・・・等）の計測デ−タをデ−タバッファ１３２にラッチする計測装置１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅ、及びデ−タ要求により前記デ−タバッファ１３２にラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元３を備えた計測システムであって、前記デ−タバッファ１３２にラッチされている計測デ−タを前記計測データ収集元３へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイル１３３を設け、この伝送履歴ファイル１３３に記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチする計測システムにおいて、前記計測データ収集元が複数個の前記計測装置１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅから計測デ−タを収集する場合、前記計測データ収集元３は収集すべき複数の被計測要素の計測デ−タの全てを一の前記計測装置から収集するまでに他の前記計測装置からも前記収集すべき被計測要素の計測デ−タを収集する計測システムである。   Since the second embodiment of the present invention is as described above, conceptually summarized, measured elements (voltage, current, power, reactive power, power factor, power amount, reactive power amount, etc.) The measurement data 1A, 1B, 1C, 1D, and 1E latching the measurement data in the data buffer 132, and the measurement data latched in the data buffer 132 by the data request are transmitted. A measurement system including a measurement data collection source 3 that collects measurement data of a measurement target element to be collected, and the measurement data latched in the data buffer 132 is converted into the measurement data collection source. A transmission history file 133 is provided for recording a transmission history as to whether or not the data has been transmitted to 3, and the measurement data of the element to be measured is loaded into the data buffer based on the transmission history information recorded in the transmission history file 133. When the measurement data collection source collects measurement data from a plurality of the measurement devices 1A, 1B, 1C, 1D, and 1E, the measurement data collection source 3 has a plurality of objects to be collected. This is a measurement system that collects the measurement data of the measurement target elements to be collected from the other measurement apparatuses before all the measurement data of the measurement elements are collected from the one measurement apparatus.

この発明の実施の形態１を示す図で、計測システム全体の構成の一例を示すブロック図である。It is a figure which shows Embodiment 1 of this invention, and is a block diagram which shows an example of a structure of the whole measurement system. この発明の実施の形態１を示す図で、図１における伝送機能付き計測装置の伝送バッファ制御部の動作を説明するフローチャートの一例を示す図である。It is a figure which shows Embodiment 1 of this invention, and is a figure which shows an example of the flowchart explaining operation | movement of the transmission buffer control part of the measuring apparatus with a transmission function in FIG. この発明の実施の形態１を示す図で、伝送履歴の一例としての伝送有り無しフラグのデータ構成の一例を示す図である。It is a figure which shows Embodiment 1 of this invention, and is a figure which shows an example of a data structure of a transmission presence / absence flag as an example of a transmission history. この発明の実施の形態２を示す図で、図４（ａ）は計測システム全体のブロック図、図４（ｂ）は図４（ａ）における計測データ収集元による計測データの収集手順を示すフローチャートの一例を示す図である。FIGS. 4A and 4B are diagrams showing a second embodiment of the present invention, in which FIG. 4A is a block diagram of the entire measurement system, and FIG. 4B is a flowchart showing a measurement data collection procedure by a measurement data collection source in FIG. It is a figure which shows an example.

符号の説明Explanation of symbols

１Ａ，１Ｂ，１Ｃ，１Ｄ，１Ｅ，〜１Ｎ 計測装置、
２ 伝送ライン、
３ 計測データ収集元、
１１ Ａ／Ｄ変換回路、
１２ 計測演算部、
１３ メモリ、
１３１ データメモリ、
１３２ 伝送用バッファ、
１３３ 伝送履歴ファイル、
１４ 伝送バッファ制御部、
１５ 伝送制御部。 1A, 1B, 1C, 1D, 1E, to 1N measuring device,
2 transmission lines,
3 Measurement data collection source,
11 A / D conversion circuit,
12 Measurement calculation unit,
13 memory,
131 data memory,
132 Transmission buffer,
133 transmission history file,
14 Transmission buffer controller,
15 Transmission control unit.

Claims (4)

被計測要素の計測デ−タをデ−タバッファにラッチする計測装置、及びデ−タ要求により前記デ−タバッファにラッチされている計測デ−タから伝送されることにより収集すべき被計測要素の計測デ−タを収集する計測データ収集元を備えた計測システムであって、前記デ−タバッファにラッチされている計測デ−タを前記計測データ収集元へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイルを有し、この伝送履歴ファイルに記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチ計測システム。   A measurement device that latches measurement data of a measured element in a data buffer, and a measurement element to be collected by being transmitted from the measurement data latched in the data buffer according to a data request A measurement system having a measurement data collection source that collects measurement data, and records a transmission history indicating whether or not the measurement data latched in the data buffer has been transmitted to the measurement data collection source. A measurement system having a transmission history file and latching measurement data of the measured element in the data buffer based on transmission history information recorded in the transmission history file. 請求項１に記載の計測システムにおいて、前記計測データ収集元が複数個の前記計測装置から計測デ−タを収集する場合、前記計測データ収集元は収集すべき複数の被計測要素の計測デ−タの全てを一の前記計測装置から収集するまでに他の前記計測装置からも前記収集すべき被計測要素の計測デ−タを収集することを特徴とする計測システム。   2. The measurement system according to claim 1, wherein when the measurement data collection source collects measurement data from a plurality of measurement devices, the measurement data collection source collects measurement data of a plurality of measured elements to be collected. A measurement system for collecting measurement data of the measurement target elements to be collected from other measurement devices before collecting all of the data from one measurement device. 請求項１および請求項２の何れか一に記載の計測システムにおいて、前記計測デ−タ収集の通信方式をポーリング方式としてあると共に、その通信プロトコルとしてデータラッチコマンドが無い通信プロトコルを適用してあることを特徴とする計測システム。   3. The measurement system according to claim 1, wherein the measurement data collection communication method is a polling method, and a communication protocol without a data latch command is applied as the communication protocol. A measurement system characterized by this. 被計測要素の計測デ−タをデ−タバッファにラッチし当該デ−タバッファにラッチしてある計測デ−タを計測データ収集元へ伝送する計測装置であって、前記デ−タバッファにラッチされている計測デ−タを前記計測データ収集元へ伝送したかどうかの伝送履歴を記録する伝送履歴ファイルを有し、この伝送履歴ファイルに記録の伝送履歴情報に基づいて前記被計測要素の計測デ−タを前記デ−タバッファにラッチする計測装置。   A measuring device that latches measurement data of an element to be measured in a data buffer and transmits the measurement data latched in the data buffer to a measurement data collection source, and is latched in the data buffer. A transmission history file that records a transmission history indicating whether or not the measured data is transmitted to the measurement data collection source, and the measurement data of the measured element is recorded in the transmission history file based on the transmission history information recorded. A measuring device that latches data in the data buffer.
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JP2007124313A (en) * 2005-10-28 2007-05-17 Fuji Electric Systems Co Ltd Transmission system, its data transmitter, and data receiver
CN102591313A (en) * 2012-03-15 2012-07-18 北京时代科仪新能源科技有限公司 Energy source monitoring system
JP2012175265A (en) * 2011-02-18 2012-09-10 Sony Corp Communication apparatus, communication system, and communication method
WO2020166131A1 (en) * 2019-02-12 2020-08-20 株式会社東芝 Remote i/o system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007124313A (en) * 2005-10-28 2007-05-17 Fuji Electric Systems Co Ltd Transmission system, its data transmitter, and data receiver
JP2012175265A (en) * 2011-02-18 2012-09-10 Sony Corp Communication apparatus, communication system, and communication method
US9615148B2 (en) 2011-02-18 2017-04-04 Sony Corporation Communication apparatus, communication system, and communication method
US9961419B2 (en) 2011-02-18 2018-05-01 Sony Corporation Communication apparatus, communication system, and communication method
CN102591313A (en) * 2012-03-15 2012-07-18 北京时代科仪新能源科技有限公司 Energy source monitoring system
WO2020166131A1 (en) * 2019-02-12 2020-08-20 株式会社東芝 Remote i/o system
KR20200126421A (en) * 2019-02-12 2020-11-06 가부시끼가이샤 도시바 Remote I/O system
KR102354089B1 (en) 2019-02-12 2022-01-24 가부시끼가이샤 도시바 Remote I/O system

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