JP2815922B2 - Remote monitoring and control device - Google Patents
Remote monitoring and control deviceInfo
- Publication number
- JP2815922B2 JP2815922B2 JP24579189A JP24579189A JP2815922B2 JP 2815922 B2 JP2815922 B2 JP 2815922B2 JP 24579189 A JP24579189 A JP 24579189A JP 24579189 A JP24579189 A JP 24579189A JP 2815922 B2 JP2815922 B2 JP 2815922B2
- Authority
- JP
- Japan
- Prior art keywords
- time
- station
- slave station
- synchronization data
- master station
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明はHDLC（High Level Data Link Cnotrol）伝送
方式を用いて、制御所（親局）及び被制御所（子局）間
で被監視制御機器の監視制御に必要な情報を伝送し合う
遠方監視制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention uses a high level data link control (HDLC) transmission system, and uses a control station (master station) and a controlled station (slave station). The present invention relates to a remote monitoring control device that transmits information necessary for monitoring and controlling a monitored device.
（従来の技術） 従来、HDLC等一定の伝送手順を用いて、新局及び子局
間で情報を伝送し合う遠方監視制御装置においては、事
故情報を解析する目的で付加された時刻情報の精度を向
上させるために、親局と子局との間で定期的に時刻合せ
が行なわれており、以下に示す２通りの方法がある。(Conventional technology) Conventionally, in a remote monitoring and control device that transmits information between a new station and a slave station using a fixed transmission procedure such as HDLC, the accuracy of time information added for the purpose of analyzing accident information has been improved. In order to improve the time, the time is regularly adjusted between the master station and the slave stations. There are two methods described below.
第１の方法として、本発明の先願である特願平１−35
372号がある。この先願の内容を、例えばHDLC伝送手順
を用いた親局からの時刻同期データの伝送による子局と
の時刻合せについて説明する。概略構成を第３図に示
し、第４図に親時計から送出される割込信号のタイムチ
ャートを示す。なお、第３図は新局と子局との関係が１
対１の場合の構成例である。As a first method, Japanese Patent Application No. 1-35, which is a prior application of the present invention, is used.
There is 372. The content of this prior application will be described, for example, with respect to time synchronization with a slave station by transmitting time synchronization data from a master station using an HDLC transmission procedure. FIG. 3 shows a schematic configuration, and FIG. 4 shows a time chart of the interrupt signal transmitted from the master clock. FIG. 3 shows that the relationship between the new station and the slave station is 1
This is a configuration example in the case of one to one.
第３図において親局Ａは、入力部31メインマイクロプ
ロセッサ32,伝送部33からなり、各々内部バスを介して
接続される。伝送部33には親時計34から定周期（Ｔ）例
えば１分毎に割込信号が入力される。入力部31は親時計
34からの時刻情報を取込み、これを内部バスを通してメ
インマイクロプロセッサ32に受け渡すものである。メイ
ンマイクロプロセッサ32はこの入力部31より時刻情報を
受け取ると、子局に対する時刻合せのための割込入力信
号の認識を行なう機能を備えており、例えばＴ＝１分,T
o＝１時間とし、毎正時毎に時刻合せを行なう場合、メ
インマイクロプロセッサ32は毎正時１分前を認識すると
その旨を伝送部33に知らせる。伝送部33はHDLC手順の伝
送プロトコル等の伝送処理を行ない、サブマイクロプロ
セッサを備える。In FIG. 3, the master station A comprises an input unit 31, a main microprocessor 32, and a transmission unit 33, each of which is connected via an internal bus. An interrupt signal is input to the transmission unit 33 from the master clock 34 at regular intervals (T), for example, every one minute. Input unit 31 is master clock
The time information from 34 is fetched and passed to the main microprocessor 32 via the internal bus. When the main microprocessor 32 receives the time information from the input unit 31, it has a function of recognizing an interrupt input signal for time setting for the slave station. For example, T = 1 minute, T
When o = 1 hour and the time is adjusted every hour, the main microprocessor 32 notifies the transmission unit 33 of the fact that one minute before the hour is recognized. The transmission unit 33 performs transmission processing such as a transmission protocol of the HDLC procedure, and includes a sub-microprocessor.
そして、メインマイクロプロセッサ32から毎正時１分
前の信号が入力されると、次に親時計34……から出力さ
れる割込入力信号が時刻合せを開始すべき信号であるこ
とを認識すると同時に、HDLC伝送手順に定義されるコン
トロールフィールド中のUI（Unnumbered Information）
コマンド及びアドレスフィールド中のグローバルアドレ
スにて構成される時刻合せのための時刻同期データを生
成し、時刻合せ開始時点での割込入力信号（In）が入力
される一定時間（to）前に、前記時刻同期データを送信
する。そして時刻同期データ送信後子局Ｃとの伝送プロ
トコル処理を中断し、HDLC伝送手順で定義されたフラグ
の伝送を開始し、割込入力信号（In）待ち状態に入る機
能を有する。When the signal of one minute before the hour is input from the main microprocessor 32, it recognizes that the next interrupt input signal output from the master clocks 34... At the same time, UI (Unnumbered Information) in the control field defined in the HDLC transmission procedure
Generates time synchronization data for time adjustment composed of a command and a global address in an address field, and is a predetermined time (t o ) before an interrupt input signal (I n ) is input at the start of time adjustment. , The time synchronization data is transmitted. After transmission of the time synchronization data, the transmission protocol processing with the slave station C is interrupted, the transmission of the flag defined in the HDLC transmission procedure is started, and a function to enter an interrupt input signal (I n ) wait state.
さらに伝送部33は、前記一定時間（to）後つまり割込
入力信号（In）が入力された時点で、子局Ｃに対して実
行開始を示す実行データをUIコマンド及びグローバルア
ドレスを用いて送信する手段を備える。Further, after the predetermined time (t o ), that is, when the interrupt input signal (I n ) is input, the transmission unit 33 uses the UI command and the global address to execute data indicating the execution start to the slave station C. Transmission means.
一方、子局Ｃの伝送部35は、親局からの前記予め送ら
れてくる時刻同期データを入力処理し、入力後一旦他の
処理を中断することにより、親局Ａからの次に送られて
くる実行データが入力されると、直ちに時刻合せに移行
することが可能となるような手段を備える。On the other hand, the transmission unit 35 of the slave station C performs the input processing of the time synchronization data transmitted in advance from the master station, temporarily interrupts other processing after the input, and transmits the time synchronization data to the next transmission from the master station A. When the execution data is inputted, a means for immediately shifting to the time adjustment is provided.
第２の方法としては、親局と子局に電波放送により時
刻較正される時計装置を持つことによる時刻合せであ
る。概略構成を第５図に示す。なお、第３図と同様に第
５図は親局と子局の関係が１対１の場合の構成例であ
る。A second method is to set the time by having a clock device that is calibrated by radio broadcasting in the master station and the slave station. FIG. 5 shows a schematic configuration. Like FIG. 3, FIG. 5 shows a configuration example in the case where the relationship between the master station and the slave stations is one-to-one.
第５図において、親局Ａはメインマイクロプロセッサ
51,伝送部52,入力部53、そして時計装置54からなり、5
1,52,53は各々内部バスを介して接続される。メインマ
イクロプロセッサ51は、入力部53を介して時計装置54か
らの時刻情報、年、月、日、時、分、秒を各桁毎に定周
期にてDI入力して時刻合せを行なう。また、時計装置54
自身は、電波放送により送られてくる時報に基づいて、
時刻較正される。従って伝送部52では、前記第１方法で
述べたような時刻合せのための複雑な手順は行なわな
い。In FIG. 5, master station A is a main microprocessor.
51, a transmission unit 52, an input unit 53, and a clock device 54,
1, 52 and 53 are connected via an internal bus. The main microprocessor 51 inputs the time information, year, month, day, hour, minute, and second from the clock device 54 via the input unit 53 at a fixed period for each digit and performs time adjustment. The clock 54
Based on the time signal sent by radio broadcasting,
The time is calibrated. Therefore, the transmission unit 52 does not perform the complicated procedure for time adjustment as described in the first method.
一方、子局Ｃにおいても、前記親局Ａと同様の方法に
て時刻合せが行なわれる。On the other hand, in the slave station C, the time is adjusted in the same manner as in the master station A.
以上示した如く、従来、親局と子局との伝送方式によ
る時刻同期方法では、親局においては、予め子局へ時刻
同期データを送っておくことにより、又、子局において
は、一旦他の処理を中断することにより、子局での時刻
合せを行なう際の精度を向上させ、さらに例えばHDLC伝
送手順の場合、UIコマンド，グローバルアドレスで構成
された時刻同期データを用いることにより、再送手順に
伴なう不定となる遅れ時間要素を除去し、時刻合せを行
なっていた。As described above, conventionally, in the time synchronization method based on the transmission method between the master station and the slave station, the master station sends time synchronization data to the slave station in advance, and the slave station temporarily transmits another time synchronization data to the slave station. By improving the accuracy of time synchronization at the slave station by interrupting the processing of the slave station, for example, in the case of the HDLC transmission procedure, the retransmission procedure is performed by using time synchronization data composed of a UI command and a global address. The indefinite delay element associated with the time is removed, and the time is adjusted.
一方、親局，子局に電波放送により送られてくる時報
に合せて、時刻較正させる時計装置を設けることによっ
て時刻合せを行なう方式では、前記伝送方式による時刻
同期方法のような複雑な手順を踏まずに、時刻情報をDI
入力することによって時刻合せを行なっていた。On the other hand, in a system in which a time is calibrated by providing a clock device for calibrating the time in accordance with a time signal sent to a master station and a slave station by radio broadcasting, a complicated procedure such as the time synchronization method by the transmission method is used. Don't step on time information
The time was adjusted by inputting.
（発明が解決しようとする課題） 従来、親局と子局構成においては、以上述べた如く、
時刻合せを行なっていた。しかし、前記第１方法では、
親局と子局間で時刻同期データを伝送させるために、例
えばHDLCコマンドの特殊な使用方法や複雑な手順を必要
とし、また時刻合せの際、一旦他の処理が中断されるの
で、本来送るべき情報の伝送遅れが生じる等の欠点があ
る。また前記第２方法では、構成は単純だが、時計装置
からの時刻情報の入力のために数十点のDI入力点数が必
要であり、時計装置そのもの及び装置本体の経済性，保
守性の低下の欠点がある。(Problems to be solved by the invention) Conventionally, in the configuration of the master station and the slave stations, as described above,
The time was set. However, in the first method,
In order to transmit time-synchronous data between the master station and slave stations, for example, a special use method or a complicated procedure of the HDLC command is required. Also, at the time of time adjustment, other processing is temporarily interrupted. There is a drawback that transmission delay of necessary information occurs. The second method has a simple structure, but requires several tens of DI input points for inputting time information from the clock device, which reduces the economical efficiency and maintainability of the clock device itself and the device body. There are drawbacks.
本発明は上記の時刻合せのための複雑な手順及び時計
装置からの多数のDI入力点数を必要とせず、親局と子局
の時刻合せを行なう際の精度を向上させることの可能な
遠方監視制御装置を提供することを目的としている。The present invention does not require a complicated procedure for the time adjustment and a large number of DI input points from the clock device, and a remote monitoring capable of improving the accuracy in performing the time adjustment of the master station and the slave station. It is intended to provide a control device.
［発明の構成］ （課題を解決するための手段） 本発明は上記の目的を達成するため、一定の伝送手順
に従って、制御所（親局）と内部時計を有する被制御所
（子局）との間で必要な情報を伝送し合って被制御監視
機器を監視制御する遠方監視制御装置において、親局に
は、次の時刻合せのための補正周期時刻に達する前に、
時刻合せの初期値となる時刻が設定された時刻同期デー
タを入力処理する手段と、この設定された前記時刻同期
データを子局へ送信する手段とを備え、子局には、親局
から送られてくる前記時刻同期データを入力処理する手
段と、これにより得られた当該時刻同期データに基づい
て当該子局の内部時計の時刻を当該初期値の時刻に合わ
せる時刻合せ手段と、電波放送によって送られてくる時
報を受信し、前記時刻合せのための時刻毎の一定周期で
割込み信号を送出する手段と、当該割込み信号に従って
前記内部時計の時刻を補正周期時刻に補正する時刻補正
手段とを備え、前記内部時計の時刻補正をし時刻合せを
行なうことを特徴としている。[Configuration of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a control station (master station) and a controlled station (slave station) having an internal clock according to a certain transmission procedure. In the remote monitoring control device that monitors and controls the controlled monitoring device by transmitting necessary information between the master station, before reaching the correction cycle time for the next time adjustment,
A means for inputting time synchronization data in which a time serving as an initial value for time adjustment is set; and a means for transmitting the set time synchronization data to a slave station. Means for inputting the received time synchronization data, time adjustment means for adjusting the time of the internal clock of the slave station to the time of the initial value based on the time synchronization data obtained thereby, Means for receiving the transmitted time signal and transmitting an interrupt signal at a constant cycle for each time for the time adjustment, and time correcting means for correcting the time of the internal clock to a correction cycle time according to the interrupt signal. And the time is adjusted by adjusting the time of the internal clock.
（作 用） 先ず、親局では時刻同期データを入力処理する手段に
よって、時刻合せのための時刻であるかどうかを判定
し、時刻合せの時間であれば時刻同期データを子局へ伝
送する。(Operation) First, the master station determines whether or not it is time for time adjustment by means of input processing of the time synchronization data, and if the time is for time adjustment, transmits the time synchronization data to the slave station.
子局では親局からの時刻同期データを受信すると内部
時計の時刻合せをする。一方、時報受信部からの定周期
割込信号が入力されると、これを用いて内部時計の補正
をして時刻合せを行なう。When the slave station receives the time synchronization data from the master station, it adjusts the time of the internal clock. On the other hand, when a fixed-cycle interrupt signal is input from the time signal receiving unit, the internal clock is corrected using the signal to adjust the time.
（実施例） 以下本発明の一実地例を図面を参照して説明する。(Embodiment) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明による親局と子局との関係が１対１の
場合の遠方監視制御装置の一実施例を示すものである。FIG. 1 shows an embodiment of a remote monitoring control apparatus according to the present invention in which the relationship between a master station and slave stations is one-to-one.
第１図において、親局Ａはメインマイクロプロセッサ
11,伝送部12,入力部13からなり、11,12,13は各々内部バ
スを介して接続される。メインマイクロプロセッサ11
は、入力部13を介して外部機器14例えば計算機システム
等の制御卓から設定される任意の時刻設定を入力処理
し、時刻合せのための時刻周期データを伝送部12へ渡
す。伝送部12はHDLC手順の伝送プロトコル等の処理を行
ない、サブマイクロプロセッサを備える。そしてメイン
マイクロプロセッサ11を介して、外部機器14から設定さ
れる時刻同期データを受け取ると、通常下り情報の１つ
として子局へ送信する。In FIG. 1, a master station A is a main microprocessor.
11, a transmission unit 12, and an input unit 13, each of which is connected via an internal bus. Main microprocessor 11
Performs input processing of an arbitrary time setting set from an external device 14, for example, a control console such as a computer system, via the input unit 13, and passes time period data for time adjustment to the transmission unit 12. The transmission unit 12 performs processing such as a transmission protocol of the HDLC procedure, and includes a sub-microprocessor. When the time synchronization data set from the external device 14 is received via the main microprocessor 11, the data is transmitted to the slave station as one of the normal downlink information.
一方、子局Ｃは、メインマイクロプロセッサ15,伝送
部16,時報受信部17、そして内部時計18からなり、15,16
は各々内部バスを介して接続される。伝送部16は親局か
らの前記時刻同期データを入力処理し、メインマイクロ
プロセッサ15へ渡す。メインマイクロプロセッサ15は、
内部時計18を持ち、親局Ｃからの時刻同期データにより
時刻合せが行なわれる。On the other hand, the slave station C comprises a main microprocessor 15, a transmission unit 16, a time signal reception unit 17, and an internal clock 18, and
Are connected via an internal bus. The transmission unit 16 performs input processing of the time synchronization data from the master station, and passes the time synchronization data to the main microprocessor 15. The main microprocessor 15
An internal clock 18 is provided, and the time is adjusted by time synchronization data from the master station C.
一方、時報受信部17は、電波放送により送られてくる
時報を受信し、この時報に基づいて、定周期毎に割込信
号をメインマイクロプロセッサ15へ送出する。メインマ
イクロプロセッサ15は、前記割込信号により、内部時計
18の補正をし、これにより子局Ｃでの時刻合せが行なわ
れる。On the other hand, the time signal receiving section 17 receives a time signal transmitted by radio wave broadcasting, and sends an interrupt signal to the main microprocessor 15 at regular intervals based on the time signal. The main microprocessor 15 controls the internal clock by the interrupt signal.
The correction of 18 is made, and the time is adjusted in the slave station C.
次に、上記構成を有する遠方監視制御装置の作用を、
第２図に示すフローチャートを参照しながら説明する。Next, the operation of the remote monitoring control device having the above configuration will be described.
This will be described with reference to the flowchart shown in FIG.
親局Ａでは、ステップS21にて予めきめた時刻合せの
ための時報の前であるかどうかを判定し、ステップS22
にて外部機器14からの自動あるいは手動の時刻設定を行
なう。ステップS23にて前記外部機器14から設定された
時刻同期データは、伝送部12を介して子局Ｃへ送信され
る。In the master station A, it is determined whether or not it is before the time signal for time adjustment determined in advance in step S21.
, An automatic or manual time setting from the external device 14 is performed. The time synchronization data set from the external device 14 in step S23 is transmitted to the slave station C via the transmission unit 12.
子局Ｃでは、ステップS24にて親局からの時刻同期デ
ータを伝送部16で受信すると、ステップS25にてメイン
マイクロプロセッサ15内の内部時計18の時刻合せが行な
われる。In the slave station C, when the transmission unit 16 receives the time synchronization data from the master station in step S24, the time of the internal clock 18 in the main microprocessor 15 is adjusted in step S25.
一方、ステップS26にて時報受信部17からの定周期割
込信号が入力されたことを判定すると、ステップS27に
て前記時刻合せされた内部時計18の補正を行ない、子局
Ｃにおける時刻合せを行なう。On the other hand, if it is determined in step S26 that the fixed-cycle interrupt signal has been input from the time signal receiving unit 17, the internal clock 18 whose time has been adjusted is corrected in step S27, and the time adjustment in the slave station C is performed. Do.
このようにして、上記実施例からも明らかなように、
必要時、外部機器から親局を介して入力された子局への
時刻同期データを、HDLCコマンドの特殊な使用方法や複
雑な手順を必要とせず、また時刻合せの際、一旦他の処
理が中断されることがないので、他の情報の伝送遅れも
生じることなく、送信することができる。Thus, as is clear from the above embodiment,
When necessary, the time synchronization data to the slave station input from the external device via the master station can be used without the need for special use of HDLC commands or complicated procedures. Since there is no interruption, transmission can be performed without causing transmission delay of other information.
更に、子局における、時報受信部からのDI入力点数を
１点とすることができるため、経済性，保守性の面から
も有効となる。Further, since the number of DI input points from the time signal receiving unit in the slave station can be set to one, the present invention is also effective in terms of economy and maintainability.
次に本発明の他の実施例について述べる。 Next, another embodiment of the present invention will be described.
前記実施例との違いは以下の通りである。 The difference from the above embodiment is as follows.
すなわち親局自身に内部バスを介して、任意の時刻同
期データを設定する手段を設け、親局においては、同手
段からの時刻設定により前記実施例と同様に時刻同期デ
ータの送信を行なうことを特徴とし、同様の効果を得る
ことができる。That is, a means for setting arbitrary time synchronization data is provided in the master station itself via the internal bus, and the master station transmits time synchronization data in the same manner as in the above embodiment by setting the time from the means. As a feature, a similar effect can be obtained.
更に他の実施例として、親局及び子局に内部バスを介
して保守ツールからの任意の時刻設定を入力処理する手
段を設け、親局においても同ツールからの時刻設定によ
り、又、子局においても同ツールからの時刻設定により
前記実施例と同様に時刻同期データの設定を行ない、時
刻合せをする手段を備えたことを特徴とし、試験時等の
効率化を図ることができる。As still another embodiment, a means for inputting and processing an arbitrary time setting from a maintenance tool is provided in the master station and the slave station via an internal bus. In this case, time synchronization data is set by the time setting from the same tool as in the above embodiment, and a means for adjusting the time is provided, so that the efficiency at the time of a test or the like can be improved.
［発明の効果］ 以上説明したように、本発明によれば親局，子局にお
ける時刻合せを行なう場合、時刻合せのための複雑な手
順及び時計装置からの多数のDI入力点数を必要とせず、
親局と子局の時刻合せを行なう際の精度を向上させるこ
との可能な遠方監視制御装置を提供することができる。[Effects of the Invention] As described above, according to the present invention, when time adjustment is performed in the master station and the slave station, a complicated procedure for time adjustment and a large number of DI input points from the clock device are not required. ,
It is possible to provide a remote monitoring control device capable of improving the accuracy of time adjustment between a master station and a slave station.
第１図は本発明による遠方監視制御装置における時刻合
せの一実施例を示す構成図、第２図は同実施例の作用を
説明するためのフローチャートを示す図、第３図，第４
図は従来の遠方監視制御装置における伝送方式による時
刻合せの一例を示す構成図と親時計からの割込入力信号
のタイムチャート、第５図は従来の遠方監視制御装置に
おける時計装置を持つことによる時刻合せの一例を示す
構成図である。 Ａ……親局、Ｃ……子局 11,15……メインマイクロプロセッサ 12,16……伝送部、13……入力部 14……外部機器、17……時報受信部 18……内部時計FIG. 1 is a block diagram showing an embodiment of time adjustment in a remote monitoring control apparatus according to the present invention, FIG. 2 is a flowchart showing the operation of the embodiment, FIG. 3, FIG.
FIG. 1 is a block diagram showing an example of time adjustment by a transmission method in a conventional remote monitoring control device and a time chart of an interrupt input signal from a master clock. FIG. 5 is a diagram showing a conventional remote monitoring control device having a clock device. FIG. 3 is a configuration diagram illustrating an example of time adjustment. A: Master station, C: Slave station 11, 15: Main microprocessor 12, 16: Transmission unit, 13: Input unit 14: External device, 17: Time signal reception unit 18: Internal clock
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G04G 5/00 H04Q 9/14 H02J 13/00 G08C 15/06 G06F 1/04──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 6 , DB name) G04G 5/00 H04Q 9/14 H02J 13/00 G08C 15/06 G06F 1/04
Claims (1)
と内部時計を有する被制御所（子局）との間で必要な情
報を伝送し合って被制御監視機器を監視制御する遠方監
視制御装置において、親局には、次の時刻合せのための
補正周期時刻に達する前に、時刻合せの初期値となる時
刻が設定された時刻同期データを入力処理する手段と、
この設定された前記時刻同期データを子局へ送信する手
段とを備え、子局には、親局から送られてくる前記時刻
同期データを入力処理する手段と、これにより得られた
当該時刻同期データに基づいて当該子局の内部時計の時
刻を当該初期値の時刻に合わせる時刻合せ手段と、電波
放送によって送られてくる時報を受信し、前記時刻合せ
のための時刻毎の一定周期で割込み信号を送出する手段
と、当該割込み信号に従って前記内部時計の時刻を補正
周期時刻に補正する時刻補正手段とを備えたことを特徴
とする遠方監視制御装置。1. A control station (master station) according to a certain transmission procedure.
And a controlled station (slave station) having an internal clock to transmit necessary information to monitor and control the controlled monitored equipment. Means for inputting time synchronization data in which a time serving as an initial value for time adjustment is set before reaching the correction cycle time;
Means for transmitting the set time synchronization data to the slave station. The slave station includes means for input-processing the time synchronization data sent from the master station, and the time synchronization data obtained thereby. Time adjusting means for adjusting the time of the internal clock of the slave station to the time of the initial value based on the data; receiving a time signal transmitted by radio wave broadcast; A remote monitoring control device, comprising: means for transmitting a signal; and time correction means for correcting the time of the internal clock to a correction cycle time in accordance with the interrupt signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24579189A JP2815922B2 (en) | 1989-09-21 | 1989-09-21 | Remote monitoring and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24579189A JP2815922B2 (en) | 1989-09-21 | 1989-09-21 | Remote monitoring and control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107790A JPH03107790A (en) | 1991-05-08 |
| JP2815922B2 true JP2815922B2 (en) | 1998-10-27 |
Family
ID=17138888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24579189A Expired - Fee Related JP2815922B2 (en) | 1989-09-21 | 1989-09-21 | Remote monitoring and control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2815922B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2716990A1 (en) * | 1994-03-01 | 1995-09-08 | Actipole | Identification and recording system for passage of vehicles on motor racing circuits |
| WO2023148956A1 (en) * | 2022-02-07 | 2023-08-10 | 株式会社安川電機 | Communication system, communication device, and communication method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50124675A (en) * | 1974-03-18 | 1975-09-30 | ||
| JPS60239819A (en) * | 1984-05-15 | 1985-11-28 | Fuji Xerox Co Ltd | Time correcting device for information processor |
| JPS62187280A (en) * | 1986-02-13 | 1987-08-15 | Nec Corp | Time synchronizing device |
-
1989
- 1989-09-21 JP JP24579189A patent/JP2815922B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03107790A (en) | 1991-05-08 |
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