JPH08331014A - Transmission backup method for data collection system - Google Patents
Transmission backup method for data collection systemInfo
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- JPH08331014A JPH08331014A JP7133041A JP13304195A JPH08331014A JP H08331014 A JPH08331014 A JP H08331014A JP 7133041 A JP7133041 A JP 7133041A JP 13304195 A JP13304195 A JP 13304195A JP H08331014 A JPH08331014 A JP H08331014A
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- Prior art keywords
- transmission device
- transmission
- standby
- active
- slave station
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば原子力施設内の
多数の個所に設置された放射線モニタが計測する放射線
量データを１個所に収集し監視するシステムのような、
データを定周期で収集するシステムにおける、伝送装置
の異常時のバックアップ方法に関する。BACKGROUND OF THE INVENTION The present invention relates to a system for collecting and monitoring radiation dose data measured by radiation monitors installed at a large number of locations in a nuclear facility at one location, for example.
The present invention relates to a backup method when a transmission device is abnormal in a system that collects data at regular intervals.
【０００２】なお、以下各図において同一の符号は同一
もしくは相当部分を示す。In the following drawings, the same reference numerals indicate the same or corresponding parts.
【０００３】[0003]
【従来の技術】図５はこの種のデータ収集システムの通
常の構成例を示す。同図において、６は多数個所に設置
された被監視量の計測器としてのモニタ、５（５ａ〜５
ｉ）は夫々自身に属するモニタ６の近傍にあって、その
計測量としてのデータを定周期で直接収集する計算機と
してのデータ収集子局（単に子局とも呼ぶ）である。2. Description of the Related Art FIG. 5 shows a typical configuration example of a data collection system of this type. In the figure, 6 is a monitor 5 (5a to 5a) installed in a number of places as a measuring instrument for the monitored amount.
i) is a data collection slave station (also simply referred to as a slave station) as a computer, which is located in the vicinity of the monitor 6 belonging to each of them and directly collects the data as the measured amount in a fixed cycle.
【０００４】３（３−１〜３−３）は夫々自身に属する
子局５の収集データを収集する伝送装置で、この例では
伝送装置３−１はグループＧ１の子局５ａ〜５ｃの夫々
の収集データを収集し、伝送装置３−２はグループＧ２
の子局５ｄ〜５ｆの夫々の収集データを収集し、伝送装
置３−３はグループＧ３の子局５ｇ〜５ｉの夫々の収集
データを収集する。Reference numeral 3 (3-1 to 3-3) is a transmission device that collects the collected data of the slave stations 5 belonging to each of them. In this example, the transmission device 3-1 is one of the slave stations 5a to 5c of the group G1. And the transmission device 3-2 collects the collected data of the group G2.
Of the slave stations 5d to 5f, and the transmission device 3-3 collects the collected data of the slave stations 5g to 5i of the group G3.
【０００５】また、１は各伝送装置３−１〜３−３の収
集データを収集する計算機としての上位ＣＰＵ、２は上
位ＣＰＵ１と各伝送装置３−１〜３−３を結合する共通
の伝送路で、上記の上位ＣＰＵ１のデータ収集はこの伝
送路２を介して行われる。同様に４も各伝送装置３−１
〜３−３と各子局５ａ〜５ｉを結合する共通の伝送路
で、前述の伝送装置３のデータ収集はこの伝送路４を介
して行われる。Further, 1 is an upper CPU as a computer which collects the collected data of the respective transmission devices 3-1 to 3-3, and 2 is a common transmission for connecting the upper CPU 1 and the respective transmission devices 3-1 to 3-3. The data collection of the above-mentioned upper CPU 1 is performed via this transmission line 2. Similarly, 4 is each transmission device 3-1.
.. 3-3 and a common transmission line connecting the slave stations 5a to 5i, the data collection of the transmission device 3 is performed via the transmission line 4.
【０００６】[0006]
【発明が解決しようとする課題】ところで原子力施設の
各部の放射線量を監視するようなシステムの場合、なる
べく費用を抑制しながら、データ収集の信頼性を高める
必要があり、その方策の一つとして伝送装置３の中に図
５の伝送装置３−１〜３−３のような複数（一般にｎ
台）の運用系の伝送装置の他に、図５の点線で示す伝送
装置３−４のような１台の待機系の伝送装置を設け、運
用系の伝送装置がダウンしたとき、直ちに待機系の伝送
装置がダウンした伝送装置に代わってバックアップ運用
を開始するようにする方法が考えられる。By the way, in the case of a system for monitoring the radiation dose of each part of a nuclear facility, it is necessary to increase the reliability of data collection while suppressing the cost as much as possible. In the transmission device 3, a plurality of transmission devices 3-1 to 3-3 (generally n
In addition to the active transmission device, a standby system transmission device such as the transmission device 3-4 shown by the dotted line in FIG. 5 is provided, and when the active transmission device goes down, the standby system is immediately activated. It is conceivable to start backup operation in place of the down transmission device.
【０００７】しかしながらこのような伝送装置のバック
アップ切替には次のような問題がある。 （１）伝送装置は互いに相手が運用系であるか待機系で
あるかの情報を持たないので、ｎ台の伝送装置間で水平
連携をとり、運用系，待機系の伝送装置を特定する必要
があるが、その決定に時間がかかると共に、ソフトも複
雑になる。また、運用系の伝送装置２台が同時にダウン
した場合等では、待機系伝送装置への切替タイミングの
決定等が非常に困難である。However, such backup switching of the transmission device has the following problems. (1) Since the transmission devices do not have information on whether the other is an active system or a standby system, it is necessary to establish horizontal cooperation between n transmission devices and specify the active and standby transmission devices. However, the decision takes time and the software becomes complicated. In addition, when two active transmission devices are down at the same time, it is very difficult to determine the timing of switching to the standby transmission device.
【０００８】（２）従来は、運用系伝送装置がダウンし
てから待機系伝送装置が自身を子局側に通知する方法が
用いられているが、このようにすると子局に新運用系伝
送装置を通知するまでの間のデータ収集が抜ける可能性
がある。そこで本発明はこのような問題を解消し、次の
〜の条件を満たすことができるようなデータ収集シ
ステムの伝送バックアップ方法を提供することを課題と
する。(2) Conventionally, a method has been used in which the standby system transmission device notifies itself to the slave station side after the active system transmission device goes down. Data collection may be missed until the device is notified. Therefore, it is an object of the present invention to solve the above problems and provide a transmission backup method for a data collection system that can satisfy the following conditions (1) to (3).
【０００９】 運用系，待機系の伝送装置の決定を瞬
時、しかも正確に伝えること。 運用系伝送装置の１台がダウンした場合、瞬時に待
機系伝送装置が動作し、定周期オンライン収集データに
欠落が生じないこと。 運用系伝送装置が複数台同時にダウンしても、待機
系伝送装置の運用系への切替えを１台分のみとする調整
が行えること。Immediately and accurately transmitting the decision of the transmission device of the active system and the standby system. When one of the active transmission devices goes down, the standby transmission device operates instantly and no loss occurs in the fixed cycle online collected data. Even if more than one active transmission device goes down at the same time, the standby transmission device can be switched to the active system only for one device.
【００１０】[0010]
【課題を解決するための手段】前記課題を解決するため
に、請求項１の伝送バックアップ方法では、夫々、（モ
ニタ６などから）定周期でデータを収集し、予め複数の
グループ（Ｇ１〜Ｇ３など）のうち何れか１つのグルー
プにグループ分けされた複数の子局（５ａ〜５ｉ）と、
この各子局と共通の第１の伝送路（４）によって結合さ
れた運用系の複数の伝送装置（３−１〜３−３など）及
び待機系の１つの伝送装置（３−４など）と、この各伝
送装置と共通の第２の伝送路（２）によって結合された
親局（上位ＣＰＵ１）とからなり、運用系の伝送装置は
夫々自身に割当てられたグループの各子局の収集データ
を収集し、親局は運用系の各伝送装置の収集データを収
集するデータ収集システムにおいて、前記の各伝送装置
に予め前記グループ別の子局の番号をテーブルとして持
たせ、システムの立上げ時、親局は（運用／待機指定コ
マンドＣＭＤにより）運用系とする各伝送装置へ、当該
の伝送装置に割当てる子局のグループ番号（運用グルー
プ番号ＵＮＯ）と待機系とする伝送装置の番号（ＴＮ
Ｏ）を通知すると共に、待機系とする伝送装置へ当該の
伝送装置を待機系とする旨を通知し、これに応じ運用系
の各伝送装置は夫々自身に割当てられたグループの子局
へ少なくとも自身の番号及び待機系伝送装置の番号を通
知するようにする。In order to solve the above-mentioned problems, in the transmission backup method according to claim 1, data is collected at a fixed cycle (from the monitor 6 or the like), and a plurality of groups (G1 to G3) are collected in advance. Etc.), a plurality of slave stations (5a to 5i) grouped into any one group,
A plurality of active transmission devices (3-1 to 3-3, etc.) and one standby transmission device (3-4, etc.) connected to each slave station by a common first transmission path (4). And a master station (upper CPU 1) connected by a second transmission line (2) common to each transmission device, the transmission device of the active system collecting each slave station of the group assigned to itself. In a data collection system that collects data and the master station collects the collected data of each transmission device in the operating system, each transmission device has a table of the slave station numbers for each group in advance, and the system starts up. At this time, the master station assigns (by the operation / standby designation command CMD) to each transmission device to be the active system, the group number of the slave station assigned to the transmission device (operation group number UNO) and the transmission device number to be the standby system ( TN
O), and also notifies the transmission device to be the standby system that the transmission device is to be the standby system, and in response to this, each transmission device of the active system at least notifies the slave stations of the group assigned to itself. Notify itself and the standby transmission device number.
【００１１】また、請求項２の伝送バックアップ方法で
は、請求項１に記載の伝送バックアップ方法において、
伝送装置のダウン時、この伝送装置に割当てられたグル
ープの各子局は直ちに待機系伝送装置と伝送を開始し、
この待機系伝送装置はダウンした伝送装置に代わる新た
な運用系伝送装置となって親局と伝送を開始するように
する。The transmission backup method according to claim 2 is the transmission backup method according to claim 1,
When the transmission device goes down, each slave station of the group assigned to this transmission device immediately starts transmission with the standby transmission device,
This standby transmission device becomes a new active transmission device to replace the down transmission device and starts transmission with the master station.
【００１２】また、請求項３の伝送バックアップ方法で
は、請求項２に記載の伝送バックアップ方法において、
さらに別の伝送装置がダウンし、この伝送装置に割当て
られたグループの子局から前記新たな運用系伝送装置が
伝送開始要求を受けたときは、該運用系伝送装置はこの
伝送開始要求を拒否するようにする。The transmission backup method according to claim 3 is the transmission backup method according to claim 2,
When another transmission device goes down and the new active transmission device receives a transmission start request from the slave station of the group assigned to this transmission device, the active transmission device rejects this transmission start request. To do so.
【００１３】また、請求項４の伝送バックアップ方法で
は、請求項２又は３に記載の伝送バックアップ方法にお
いて、前記新たな運用系伝送装置との伝送を開始した親
局は、各運用系伝送装置へ少なくとも待機系伝送装置が
存在しない旨を通知し、これに応じ運用系の各伝送装置
は夫々自身に割当てられたグループの子局へ少なくとも
待機系伝送装置が存在しない旨を通知するようにする。Further, in the transmission backup method according to claim 4, in the transmission backup method according to claim 2 or 3, the master station, which has started transmission with the new active transmission device, transmits to each active transmission device. At least the standby system transmission device is notified that there is no standby system transmission device, and in response to this, each operating system transmission device notifies the slave stations of the group assigned to itself that at least the standby system transmission device does not exist.
【００１４】また、請求項５の伝送バックアップ方法で
は、請求項４に記載の伝送バックアップ方法において、
ダウンした伝送装置の立上げ時、親局は運用系伝送装置
へ少なくとも立上げる伝送装置の番号を待機系伝送装置
の番号として通知すると共に、立上げる伝送装置へ待機
系伝送装置とする旨を通知し、これに応じ運用系の各伝
送装置は夫々自身に割当てられたグループの子局へ少な
くとも立上げる伝送装置の番号を待機系伝送装置の番号
として通知するようにする。The transmission backup method according to claim 5 is the transmission backup method according to claim 4,
When a down transmission device is started up, the master station notifies the active transmission device of at least the start up transmission device number as the standby transmission device number, and also notifies the start up transmission device that it is the standby transmission device. Then, in response to this, each transmission device of the active system notifies at least the number of the transmission device to be started up to the slave station of the group assigned to itself as the number of the standby transmission device.
【００１５】[0015]
（１）複数の伝送装置に対する運用系か，待機系かの指
示は、上位計算機（上位ＣＰＵ）側で調整をとり、伝送
装置に指令を出す一括管理方式を用いる。このことで、
複数伝送装置の一斉立上げ制御及び確実な待機系伝送装
置の通知を行う。(1) For the instruction of the operating system or the standby system for a plurality of transmission devices, a collective management method is used in which the host computer (upper CPU) adjusts and issues commands to the transmission devices. With this,
Simultaneous startup control of multiple transmission devices and reliable notification of standby transmission devices.
【００１６】（２）上位ＣＰＵによる伝送装置への運用
系と待機系の指令のタイミングで運用系の伝送装置が、
その配下の子局側に待機系の伝送装置番号を予め通知し
ておくことで、運用系伝送装置のダウン時に瞬時に子局
側から待機系伝送装置へデータが送れるようにする。ま
た、運用系伝送装置が複数台同時にダウンし、一斉に待
機系伝送装置への切替えが行われても、既に待機系伝送
装置が使用されていれば、他の子局からのデータ伝送開
始要求に対し拒否伝文を送ることで、運用系伝送装置１
台分の切替え処理ができるようにする。(2) The transmission system of the active system is set at the timing of the command of the active system and the standby system to the transmission device by the upper CPU.
By notifying the slave station side under it of the standby system transmission device number in advance, data can be sent from the slave station side to the standby system transmission device instantly when the active system transmission device goes down. In addition, even if multiple active transmission devices are down at the same time and the standby transmission devices are switched all at once, if the standby transmission devices are already in use, data transmission start requests from other slave stations To the active transmission device 1 by sending a refusal message to
Allows switching processing for one vehicle.
【００１７】[0017]
【実施例】図１ないし図４は本発明の一実施例としての
データ収集システムの構成と時系列の動作を示す図であ
る。本発明では図１に示すように伝送装置３として運用
系伝送装置３−１〜３−３の他に斜線で示す待機系伝送
装置３−４が設けられている。1 to 4 are diagrams showing the configuration and time-series operation of a data collection system as an embodiment of the present invention. In the present invention, as shown in FIG. 1, a standby transmission device 3-4 shown by hatching is provided as the transmission device 3 in addition to the active transmission devices 3-1 to 3-3.
【００１８】なお以下では便宜上、伝送装置３−１〜３
−４を夫々伝送装置＃１〜＃４とも呼ぶ。また、伝送装
置３−１〜３−３の夫々のデータ収集対象グループの子
局は図５と同じとする。次に（１）伝送装置一斉立上げ
時，（２）伝送装置＃３ダウン時，（３）伝送装置＃３
立上げ時の順番で、且つケース１〜７の順に、本発明の
データ収集システムの動作を述べる。In the following, for the sake of convenience, the transmission devices 3-1 to 3-3.
-4 are also referred to as transmission devices # 1 to # 4, respectively. The slave stations of the data collection target groups of the transmission devices 3-1 to 3-3 are the same as those in FIG. Next, (1) when all transmission devices are started up, (2) when transmission device # 3 is down, (3) transmission device # 3
The operation of the data collection system of the present invention will be described in the order of startup and in the order of cases 1 to 7.
【００１９】（１）伝送装置一斉立上げ時：図１のケー
ス１では、伝送装置＃１〜＃４が一斉に立上がり、この
図に示すように上位ＣＰＵ１から全伝送装置＃１〜＃４
に夫々運用系グループ番号ＵＮＯを分子（スラッシュ
“／”の左側の数値）とし、待機系伝送装置番号ＴＮＯ
（この場合は値“４”）を分母（スラッシュ“／”の右
側の数値）とした指令としての、 “（運用系グループ番号ＵＮＯ）／（待機系伝送装置番
号ＴＮＯ）” の構成の運用／待機指定コマンドＣＭＤを送る。(1) At the time of simultaneous start-up of transmission devices: In case 1 of FIG. 1, the transmission devices # 1 to # 4 start up at the same time, and as shown in FIG.
The operating system group number UNO is used as the numerator (the numerical value on the left side of the slash “/”), and the standby system transmission device number TNO
(In this case, the value "4" is the denominator (the value on the right side of the slash "/"), the operation of the configuration of "(active system group number UNO) / (standby system transmission device number TNO)" / Send the standby designation command CMD.
【００２０】ここで運用系グループ番号ＵＮＯの値“０
〜３”と、これに対応する伝送対象の子局のグループと
の関係は次表１で示され、このテーブルは予め各伝送装
置＃１〜＃４に設定されているものとする。Here, the value "0" of the operational group number UNO
~ 3 "and the corresponding group of slave stations to be transmitted are shown in Table 1 below, and this table is set in advance in each of the transmission devices # 1 to # 4.
【００２１】[0021]
【表１】 [Table 1]
【００２２】ところでこの例では上位ＣＰＵ１から伝送
装置（＃１）３−１へは“１／４”の内容の運用／待機
指定コマンドＣＭＤが送信され、これは伝送装置＃１が
グループＧ１の子局５ａ〜５ｃと伝送を行うべきこと及
び待機系となる伝送装置（＃４）３−４であることを意
味している。同様に伝送装置＃２並びに＃３には夫々
“２／４”並びに“３／４”の内容の運用／待機指定コ
マンドＣＭＤが送信されるが、これは伝送装置＃２がグ
ループＧ２の子局５ｄ〜５ｆと伝送を行うべきこと及び
待機系となる伝送装置が＃４であること、並びに伝送装
置＃３がグループＧ３の子局５ｇ〜５ｉと伝送を行うべ
きこと及び待機系となる伝送装置が＃４であることを意
味している。By the way, in this example, the operation / standby designation command CMD having the content of "1/4" is transmitted from the upper CPU 1 to the transmission device (# 1) 3-1. This is because the transmission device # 1 is a child of the group G1. This means that transmission should be performed with the stations 5a to 5c and that the transmission device (# 4) 3-4 is a standby system. Similarly, the operation / standby designation command CMD having the contents of "2/4" and "3/4" is transmitted to the transmission devices # 2 and # 3, respectively. This is because the transmission device # 2 is a slave station of the group G2. 5d to 5f are to be transmitted and the standby transmission device is # 4, and the transmission device # 3 is to transmit to the slave stations 5g to 5i of the group G3 and the standby transmission device. Means # 4.
【００２３】また、伝送装置＃４へは“０／４”の内容
の運用／待機指定コマンドＣＭＤが送信されるが、これ
は伝送装置＃４の伝送対象の子局グループは存在しない
こと及び待機系となる伝送装置が＃４（つまり当該の伝
送装置）であることを意味している。このようにして図
１のケース２では、伝送装置＃４は待機系であることを
自覚でき、他の３台の伝送装置＃１〜＃３は、上位ＣＰ
Ｕ１からの運用系グループ番号ＵＮＯの割当を基にし
て、夫々、同図上Ｇ１，Ｇ２，Ｇ３で示すグルーピング
された子局５と伝送を開始する。Further, the operation / standby designation command CMD having the content of "0/4" is transmitted to the transmission device # 4, which means that there is no slave station group to be transmitted by the transmission device # 4 and the standby state. This means that the transmission device that is the system is # 4 (that is, the transmission device in question). In this way, in case 2 of FIG. 1, it is possible to recognize that the transmission device # 4 is the standby system, and the other three transmission devices # 1 to # 3 are the upper CPs.
Based on the allocation of the operational group number UNO from U1, transmission is started with the grouped slave stations 5 shown by G1, G2 and G3 in the figure, respectively.
【００２４】この際、運用系となった各伝送装置＃１〜
＃３は夫々自身の配下となった各グループＧ１〜Ｇ３の
各子局５に対し、自身の番号と共に受信した運用／待機
指定コマンドＣＭＤと同内容のコマンドを送信し、配下
の子局が収集データを送信すべき対象の伝送装置の番号
を通知すると共に、待機系伝送装置が＃４であることを
通知する。At this time, each of the transmission devices # 1 to # 1 that became the active system
# 3 sends a command having the same contents as the operation / standby designation command CMD received together with its own number to each slave station 5 of each group G1 to G3 under its control, and the slave stations under its control collect it. The number of the transmission device to which the data is to be transmitted is notified and the standby transmission device is # 4.
【００２５】（２）伝送装置＃３ダウン時：図２のケー
ス３では、図１のケース２の状態から伝送装置（＃３）
３−３がダウンしたケースで、グループＧ３の子局の５
ｇ，５ｈ，５ｉは今まで伝送していた伝送装置＃３が異
常であることを検出し、予め通知されていた待機系伝送
装置（＃４）３−４と伝送を開始する。もしその後、他
の運用系伝送装置がダウンし、伝送装置＃４へ伝送開始
依頼したい子局群が発生しても、伝送装置＃４は拒否伝
文を該当子局に送る。(2) When transmission device # 3 is down: In case 3 of FIG. 2, the transmission device (# 3) is changed from the state of case 2 of FIG.
In the case where 3-3 went down, 5 of the slave stations of group G3
g, 5h, and 5i detect that the transmission apparatus # 3 that has been transmitting up to now is abnormal, and start transmission with the standby transmission apparatus (# 4) 3-4 that was previously notified. If another active transmission device goes down after that and a slave station group for which transmission start request is sent to the transmission device # 4 occurs, the transmission device # 4 sends a refusal message to the corresponding slave station.
【００２６】次に図３のケース４では、上位ＣＰＵ１は
図２のケース３と同様に伝送装置＃３の異常を、瞬時に
検出できるが、伝送装置＃４からグループＧ３の各子局
５ｇ〜５ｉによる対応するモニタ６からの定周期の収集
データとしての定周期データＤ１が来たタイミングで、
新たな運用／待機指定コマンドＣＭＤを伝送装置＃１，
＃２，＃４へ送る。Next, in case 4 of FIG. 3, the host CPU 1 can instantly detect an abnormality of the transmission device # 3 as in case 3 of FIG. 2, but the transmission device # 4 to each slave station 5g of the group G3. At the timing when the fixed period data D1 as the fixed period collected data from the corresponding monitor 6 by 5i comes,
A new operation / standby designation command CMD is transmitted to transmission device # 1,
Send to # 2 and # 4.
【００２７】この場合、各伝送装置に対するコマンドＣ
ＭＤ中の待機系伝送装置番号ＴＮＯの値は該当する伝送
装置が無いので“０”となる。また、新たに運用系とな
った伝送装置＃４に対する運用グループ番号ＵＮＯの値
はグループＧ３の子局５ｇ〜５ｉと伝送すべき旨の
“３”となる。図３のケース５では図１のケース２と同
様に各伝送装置＃１，＃２，＃４は夫々伝送対象の子局
５に対し上位ＣＰＵ１から受信したコマンドＣＭＤと同
内容のコマンドを送り、子局側に現状では待機系伝送装
置が無い旨を通知する。In this case, the command C for each transmission device
The value of the standby transmission device number TNO in the MD is "0" because there is no corresponding transmission device. Further, the value of the operation group number UNO for the transmission device # 4 which has newly become the operation system is "3" indicating that the transmission should be made with the slave stations 5g to 5i of the group G3. In case 5 of FIG. 3, similarly to case 2 of FIG. 1, each of the transmission devices # 1, # 2, and # 4 sends a command having the same content as the command CMD received from the upper CPU 1 to the slave station 5 to be transmitted, Notify the slave station side that there is currently no standby transmission device.
【００２８】（３）伝送装置＃３立上げ時：図４のケー
ス６では、上位ＣＰＵ１が伝送装置＃３が立上がったこ
とを検出し、再び運用／待機指定コマンドＣＭＤを各伝
送装置＃１〜＃４に送信する。この場合、各伝送装置に
対するコマンドＣＭＤ内の待機系伝送装置番号ＴＮＯの
値は“３”となり、また運用グループ番号ＵＮＯの値は
伝送装置＃１，＃２，＃４に対しては図３の場合と同じ
であるが、新たに待機系となった伝送装置＃３には
“０”が送られる。(3) When the transmission device # 3 is started up: In case 6 of FIG. 4, the upper CPU 1 detects that the transmission device # 3 has started up, and again issues the operation / standby designation command CMD to each transmission device # 1. ~ Send to # 4. In this case, the value of the standby transmission device number TNO in the command CMD for each transmission device is "3", and the value of the operation group number UNO is shown in FIG. 3 for the transmission devices # 1, # 2, and # 4. As in the case, "0" is sent to the transmission device # 3 that has newly become the standby system.
【００２９】次に図４のケース７では各運用系の伝送装
置＃１，＃２，＃４は伝送対象の子局に上位ＣＰＵ１か
ら受信したコマンドＣＭＤと同内容のコマンドを送り、
全子局に対し、待機系の伝送装置が＃３であることを予
め通知しておく。以降のシステム運用中は前述のケース
３〜ケース７のどれかの状態をシーケンシャルに運用で
きる。Next, in case 7 of FIG. 4, the transmission devices # 1, # 2, and # 4 of each operating system send a command having the same contents as the command CMD received from the host CPU 1 to the slave stations to be transmitted,
Notify all slave stations in advance that the standby transmission device is # 3. During the subsequent system operation, any one of the cases 3 to 7 can be operated sequentially.
【００３０】[0030]
【発明の効果】本発明によれば上位ＣＰＵが複数の各伝
送装置に対し、予めコマンドを送って運用系となる伝送
装置へはその伝送対象の子局グループを指定するデータ
及び待機系伝送装置の番号を知らせ、また待機系となる
伝送装置へはその旨を知らせ、さらに運用系となった伝
送装置は配下となる子局へ自身の番号及び待機系伝送装
置の番号を知らせるようにしたので、伝送装置ダウン
時、その配下の子局は直ちに待機系伝送装置と伝送を開
始し、この待機系伝送装置をダウンした伝送装置に代わ
る新たに運用系の伝送装置として収集データを上位ＣＰ
Ｕへ伝送するようにしたので、上位ＣＰＵはモニタから
の定周期の収集データの欠落なく、データ収集を継続す
ることができる。According to the present invention, the host CPU sends a command to each of a plurality of transmission devices in advance and designates a slave station group to be transmitted to the transmission device which becomes the active system, and the standby transmission device. The transmission number of the standby system is also notified to the transmission device that is the standby system, and the transmission device that is the active system is to notify the slave station under its control of its own number and the transmission number of the standby system. When a transmission device is down, the slave stations under its control immediately start transmission with the standby transmission device, and the collected data is used as a new transmission device for the standby system in place of the down transmission device.
Since the data is transmitted to the U, the upper CPU can continue the data collection without the loss of the fixed-cycle collected data from the monitor.
【図１】本発明の一実施例としてのシステムの構成と動
作の説明図FIG. 1 is an explanatory diagram of a system configuration and operation as an embodiment of the present invention.
【図２】図１に続く動作の説明図FIG. 2 is an explanatory diagram of an operation following FIG.
【図３】図２に続く動作の説明図FIG. 3 is an explanatory diagram of an operation following FIG.
【図４】図３に続く動作の説明図FIG. 4 is an explanatory diagram of the operation following FIG.
【図５】図１に対応する従来のシステムの構成と動作の
説明図5 is an explanatory diagram of the configuration and operation of a conventional system corresponding to FIG.
１ 上位ＣＰＵ ２ 伝送路 ３（３−１〜３−４） 伝送装置 ３−１ 伝送装置＃１ ３−２ 伝送装置＃２ ３−３ 伝送装置＃３ ３−４ 伝送装置＃４ ４ 伝送路 ５（５ａ〜５ｉ） データ収集子局（子局） ６ モニタ Ｇ１，Ｇ２，Ｇ３ 子局のグループ ＵＮＯ 運用グループ番号 ＴＮＯ 待機系伝送装置番号 ＣＭＤ 運用／待機指定コマンド 1 Upper CPU 2 Transmission line 3 (3-1 to 3-4) Transmission device 3-1 Transmission device # 1 3-2 Transmission device # 2 3-3 Transmission device # 3 3-4 Transmission device # 4 4 Transmission line 5 (5a to 5i) Data collection Slave station (slave station) 6 Monitor G1, G2, G3 Slave station group UNO Operation group number TNO Standby transmission device number CMD Operation / standby designation command
Claims (5)
のグループのうち何れか１つのグループにグループ分け
された複数の子局と、 この各子局と共通の第１の伝送路によって結合された運
用系の複数の伝送装置及び待機系の１つの伝送装置と、 この各伝送装置と共通の第２の伝送路によって結合され
た親局とからなり、 運用系の伝送装置は夫々自身に割当てられたグループの
各子局の収集データを収集し、親局は運用系の各伝送装
置の収集データを収集するデータ収集システムにおい
て、 前記の各伝送装置に予め前記グループ別の子局の番号を
テーブルとして持たせ、 システムの立上げ時、親局は運用系とする各伝送装置
へ、当該の伝送装置に割当てる子局のグループ番号と待
機系とする伝送装置の番号を通知すると共に、待機系と
する伝送装置へ当該の伝送装置を待機系とする旨を通知
し、 これに応じ運用系の各伝送装置は夫々自身に割当てられ
たグループの子局へ少なくとも自身の番号及び待機系伝
送装置の番号を通知するようにしたことを特徴とするデ
ータ収集システムの伝送バックアップ方法。1. A plurality of slave stations, each of which collects data at a fixed cycle and is preliminarily divided into any one of a plurality of groups, and a first transmission line common to each slave station. It consists of a plurality of active transmission devices and one standby transmission device that are connected, and a master station that is connected by a second transmission line common to these transmission devices. Each active transmission device is its own. In the data collection system that collects the collected data of each slave station of the group assigned to the master station, the master station collects the collected data of each transmission device of the operating system, When the system is started up, the master station notifies each transmission device that is the active system of the group number of the slave station assigned to the transmission device and the number of the transmission device that is the standby system when the system starts up. Standby system Notify the transmission device that the transmission device is to be the standby system, and in response to this, each transmission device of the active system should at least give its own number and the transmission number of the standby system to the slave stations of the group assigned to itself. A transmission backup method for a data collection system, characterized by being notified.
おいて、 伝送装置のダウン時、この伝送装置に割当てられたグル
ープの各子局は直ちに待機系伝送装置と伝送を開始し、
この待機系伝送装置はダウンした伝送装置に代わる新た
な運用系伝送装置となって親局と伝送を開始するように
したことを特徴とするデータ収集システムの伝送バック
アップ方法。2. The transmission backup method according to claim 1, wherein when the transmission device is down, each slave station of the group assigned to this transmission device immediately starts transmission with the standby transmission device,
A transmission backup method for a data collection system, wherein the standby transmission device becomes a new active transmission device in place of the down transmission device and starts transmission with the master station.
おいて、 さらに別の伝送装置がダウンし、この伝送装置に割当て
られたグループの子局から前記新たな運用系伝送装置が
伝送開始要求を受けたときは、該運用系伝送装置はこの
伝送開始要求を拒否するようにしたことを特徴とするデ
ータ収集システムの伝送バックアップ方法。3. The transmission backup method according to claim 2, wherein another transmission device goes down, and the new active transmission device receives a transmission start request from a slave station of a group assigned to this transmission device. In this case, the active transmission device rejects this transmission start request.
方法において、 前記新たな運用系伝送装置との伝送を開始した親局は、
各運用系伝送装置へ少なくとも待機系伝送装置が存在し
ない旨を通知し、これに応じ運用系の各伝送装置は夫々
自身に割当てられたグループの子局へ少なくとも待機系
伝送装置が存在しない旨を通知するようにしたことを特
徴とするデータ収集システムの伝送バックアップ方法。4. The transmission backup method according to claim 2 or 3, wherein the master station that has started transmission with the new active transmission device is
Notify each operating transmission device that there is at least no standby transmission device, and in response to this, each operating transmission device notifies each slave station of its own group that there is at least no standby transmission device. A transmission backup method for a data collection system, characterized by being notified.
おいて、 ダウンした伝送装置の立上げ時、親局は運用系伝送装置
へ少なくとも立上げる伝送装置の番号を待機系伝送装置
の番号として通知すると共に、立上げる伝送装置へ待機
系伝送装置とする旨を通知し、これに応じ運用系の各伝
送装置は夫々自身に割当てられたグループの子局へ少な
くとも立上げる伝送装置の番号を待機系伝送装置の番号
として通知するようにしたことを特徴とするデータ収集
システムの伝送バックアップ方法。5. The transmission backup method according to claim 4, wherein when the down transmission device is started up, the master station notifies the active transmission device of at least the number of the transmission device to be started up as the standby transmission device number. At the same time, it notifies the start-up transmission device that it will be a standby transmission device, and in response to this, each active transmission device transmits at least the number of the transmission device to be activated to the slave station of the group assigned to itself to the standby transmission device. A transmission backup method for a data collection system, characterized in that it is notified as a device number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7133041A JPH08331014A (en) | 1995-05-31 | 1995-05-31 | Transmission backup method for data collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7133041A JPH08331014A (en) | 1995-05-31 | 1995-05-31 | Transmission backup method for data collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08331014A true JPH08331014A (en) | 1996-12-13 |
Family
ID=15095436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7133041A Pending JPH08331014A (en) | 1995-05-31 | 1995-05-31 | Transmission backup method for data collection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08331014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395963C (en) * | 2005-12-27 | 2008-06-18 | 华为技术有限公司 | Backup method for transmitting machine and apparatus thereof |
| CN113406903A (en) * | 2020-03-17 | 2021-09-17 | 阿里巴巴集团控股有限公司 | Data acquisition system, method and device, electronic device and computer readable storage medium |
-
1995
- 1995-05-31 JP JP7133041A patent/JPH08331014A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395963C (en) * | 2005-12-27 | 2008-06-18 | 华为技术有限公司 | Backup method for transmitting machine and apparatus thereof |
| CN113406903A (en) * | 2020-03-17 | 2021-09-17 | 阿里巴巴集团控股有限公司 | Data acquisition system, method and device, electronic device and computer readable storage medium |
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