JPH01171397A - Transmission equipment - Google Patents
Transmission equipmentInfo
- Publication number
- JPH01171397A JPH01171397A JP62332561A JP33256187A JPH01171397A JP H01171397 A JPH01171397 A JP H01171397A JP 62332561 A JP62332561 A JP 62332561A JP 33256187 A JP33256187 A JP 33256187A JP H01171397 A JPH01171397 A JP H01171397A
- Authority
- JP
- Japan
- Prior art keywords
- data
- digital
- transmitting
- analog
- transmitting path
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 39
- 238000005259 measurement Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000004043 responsiveness Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
Landscapes
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば受配電システムの集中監視などにお
ける伝送装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmission device used in, for example, centralized monitoring of a power receiving and distribution system.
第3図は、従来の伝送装置の構成図である。図において
、(1)はデータ処理装置、(2a)〜(2d)は子局
、(3)はデータ処理装置(11と子局(21のデータ
が送受される伝送路、(4)はデータを表示するCRT
、(51はデータをロギングするプリンタ、(6(は各
操作を行うキーボードである。第4図は従来のポーリン
グ制御における伝送手順を示す図であり、(7a)〜(
7d)はボーリシサ信号、(詠)〜(8d)は応答信号
である。FIG. 3 is a block diagram of a conventional transmission device. In the figure, (1) is a data processing device, (2a) to (2d) are slave stations, (3) is a transmission line through which data is sent and received between the data processing device (11) and the slave station (21), and (4) is a data CRT that displays
, (51 is a printer for logging data, (6 ( is a keyboard for performing various operations.) FIG. 4 is a diagram showing a transmission procedure in conventional polling control, and (7a) to (
7d) is a vooriciser signal, and (Ei) to (8d) are response signals.
次に従来の動作について説明する。サイクリックポーリ
ング方式では、データ処理装置(1)から各子局(′2
?L)〜(2d)に対して、順次データの送信“妄求償
号(7a) 〜(7d)を出力し、各子局(2a) 〜
(21)はデータ処理装置(]1から要求があった時の
みデータ信号(弦)〜(&i)を送信していた。Next, the conventional operation will be explained. In the cyclic polling method, each slave station ('2
? Sequentially transmit data to L) to (2d), and output data transmission codes (7a) to (7d) to each slave station (2a) to
(21) transmits the data signal (string) to (&i) only when there is a request from the data processing device (]1.
データ処理装置(11は、1番目の子局(2a)から最
後の千局第3図、第4図では(2d)までのデータ伝送
を終えて1回の監視とデータ収集を終了する。The data processing device (11) completes data transmission from the first slave station (2a) to the last thousand stations (2d) in FIGS. 3 and 4, and completes one monitoring and data collection.
これを1サイクル時間と呼び、以上のり1作を繰り返し
て設備のデータ収集・監視を行う。This is called one cycle time, and the above one operation is repeated to collect and monitor equipment data.
従来の伝送装置では、ディジタルデータ(例えば遮断器
のON −OFFに関する信号)とアナログ値(’+L
流・電圧・電力値等)を子局においてデイジタルデータ
に変換したものを1本の伝送路(S(1にのせていた。In conventional transmission equipment, digital data (for example, signals related to ON-OFF of a circuit breaker) and analog values ('+L
Current, voltage, power values, etc.) are converted into digital data at the slave station and placed on one transmission line (S (1).
ディジタルデータのうち有、無の情報については1ビツ
トで表すことができるが、アナログ値をディジタルデー
タに変換したものは1点ンこつき12ビツトが必要であ
る。In digital data, the presence/absence information can be expressed in one bit, but converting an analog value into digital data requires 12 bits per point.
そのために、アナログ値データが多くなると1サイクル
時間が長くなり例えば緊急の処理を要する事故(遮断器
のトリップ等)が起きた場合に、必要なデータの入手が
遅れ迅速な処置がとれないという問題があった。For this reason, when there is a large amount of analog value data, the time required for one cycle becomes longer.For example, in the event of an accident that requires urgent processing (such as tripping of a circuit breaker), the problem is that obtaining the necessary data is delayed and it is not possible to take prompt action. was there.
また、応答性を高めるために伝送速度を速くすると耐ノ
イズ性が悪くなり、信頼性が落ちるという問題点があっ
た。Furthermore, when the transmission speed is increased in order to improve responsiveness, there is a problem in that noise resistance deteriorates and reliability decreases.
この発明は、上記のような問題点を解消するためになさ
れたもので、サイクリックポーリシグ方式でも、伝送デ
ータの応答性と信頼性を高くできる伝送装置を得ること
を目的とする。The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a transmission device that can improve the responsiveness and reliability of transmitted data even when using a cyclic polling method.
L問題点を解決するための手段〕
この発明に係る伝送装置は、ディジタルデータのみを扱
うディジタル系とアナログ量データのみを扱うアナログ
系に伝送路が分離されたものである。Means for Solving Problem L] In the transmission device according to the present invention, the transmission line is separated into a digital system that handles only digital data and an analog system that handles only analog quantity data.
この発明における伝送装置は、ディジタル系とアナログ
系のデータ伝送路を分離することにより、高速応答性が
必要なディジタル系伝送路の負荷の軽減がはかられ信頼
性を落とすことなく、応答性が向上するう
〔発明の実施例〕
以下、この発明の一実施例を図について説明する。第1
図においてfil 、 +21 、 +41〜(61は
上記従来装置と同様のものであるので説明を省略する、
(3a)は状態の有無等の2値データのみを扱うディジ
タル系伝送路、(3b)は電流値、電圧値等のボリュー
ムに関するデータのみを扱うアナログ系伝送路である。By separating the digital and analog data transmission paths, the transmission device of the present invention reduces the load on the digital transmission path, which requires high-speed response, and improves responsiveness without degrading reliability. [Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1st
In the figure, fil, +21, +41 to (61 are the same as the above conventional device, so the explanation will be omitted.
(3a) is a digital transmission line that handles only binary data such as the presence or absence of a state, and (3b) is an analog transmission line that handles only volume-related data such as current value and voltage value.
上記画伝送路(3a) (31−1)とも伝送路内では
ディジタルビットデータが伝送される。Digital bit data is transmitted within the image transmission paths (3a) and (31-1).
第2図(alはこの発明のポーリング制御における伝送
手順を示す図であり、(7a)〜(7C)はデータ処理
装置I I+からディジタル系伝送路(3a) K発信
されるポーリング信号、(拠)〜(8c)は各子局(2
a)〜(2G)からディジタル系伝送路(あ)に発信さ
れる応答信号である。FIG. 2 (al) is a diagram showing the transmission procedure in polling control of the present invention, (7a) to (7C) are polling signals transmitted from the data processing device I+ to the digital transmission line (3a), (based on ) to (8c) are each slave station (2
These are response signals transmitted from a) to (2G) to the digital transmission line (a).
第2図(b)は上記と同じく本発明のポーリング制御に
おける伝送手順を示す図であり、(虫)〜(9c)はデ
ータ処理装置+I+からアナログ系伝送路(3b)に発
信されるポーリング信号、(lOa)〜(10c)は各
子局(訃)〜(2C)からアナログ系伝送路(3b)に
発信される応答信号である。FIG. 2(b) is a diagram showing the transmission procedure in the polling control of the present invention as described above, and (insects) to (9c) are polling signals transmitted from the data processing device +I+ to the analog transmission line (3b). , (lOa) to (10c) are response signals transmitted from each slave station to (2C) to the analog transmission line (3b).
上記のように構成された伝送装置においては、ディジタ
ル系(亜)とアナログ系(3b)の分離により、それぞ
れの伝送路(3a) (3b)上の負荷は軽減される。In the transmission device configured as described above, the load on each transmission line (3a) (3b) is reduced by separating the digital system (sub) and analog system (3b).
特にビット数の少ない制御信号を扱い高い応答速度の要
求されるディジタル系においては、ポーリング信号(7
a)〜(7C)が順次送信され、子局応答信号(綬)〜
(8C)をデータ処理装置(11が受は取るサイクリッ
ク時間はデータ長が短かいために大幅に短縮され、応答
速度が大巾に向上する。In particular, in digital systems that handle control signals with a small number of bits and require high response speed, polling signals (7
a) ~ (7C) are transmitted sequentially, and slave station response signals (ribbon) ~
(8C) The cyclic time taken by the data processing device (11) is significantly shortened due to the short data length, and the response speed is greatly improved.
このように、異常の有無、遮断器の開閉等迅速な応答の
要求される伝送路と、正常な状態で運用している時に必
要な計測データの伝送路とを分離することにより高精度
で応答速度の高い伝送装置を得ることができる。In this way, by separating the transmission path that requires a quick response such as checking for abnormalities and opening/closing circuit breakers from the transmission path for measurement data required during normal operation, it is possible to respond with high precision. A high-speed transmission device can be obtained.
以上のように、この発明によれば、扱う情報の内容によ
ってディジタル系とアナログ系とに伝送路を分離したこ
とにより、高い応答性と信頼性を得られる効果がある。As described above, according to the present invention, high responsiveness and reliability can be obtained by separating the transmission paths into digital and analog systems depending on the content of the information to be handled.
【図面の簡単な説明】
第1図はこの発明の一実施例による伝送装置の構成を示
すブロック図、第2図はこの発明による伝送手順を示す
信号波形図、第3図は従来の伝送装置の構成を示すブロ
ック図、第4図は従来の伝送手順を示す信号波形図であ
る。
図において、(11はデータ処理装置、(21は子局、
(ア)はディジタル系伝送路、(3b)はアナログ系伝
送路である。
なお、図中、同一符号は同一または相当部分を示す。
第1図
第2図
(CD
Iα〜♂チ:、む薯づS5
第3図
第4図[Brief Description of the Drawings] Fig. 1 is a block diagram showing the configuration of a transmission device according to an embodiment of the present invention, Fig. 2 is a signal waveform diagram showing a transmission procedure according to the invention, and Fig. 3 is a conventional transmission device. FIG. 4 is a block diagram showing the configuration of the system, and FIG. 4 is a signal waveform diagram showing the conventional transmission procedure. In the figure, (11 is a data processing device, (21 is a slave station,
(A) is a digital transmission line, and (3b) is an analog transmission line. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Figure 1 Figure 2 (CD Iα~♂chi:, Musonzu S5 Figure 3 Figure 4
Claims (1)
前記複数の子局を監視制御する監視制御装置に設けられ
た親局と、この親局と前記複数の子局相互間を接続する
信号伝送バスとを備えた伝送装置において、信号伝送バ
スを2系途とし、一方を状態表示(2値データ)系、他
方を計測データ系としたことを特徴とする伝送装置。A slave station provided in each controlled device distributed in a distributed manner,
In a transmission device including a master station provided in a supervisory control device that monitors and controls the plurality of slave stations, and a signal transmission bus that connects the master station and the plurality of slave stations, the signal transmission bus is connected to two A transmission device characterized in that one side is a status display (binary data) system and the other side is a measurement data system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62332561A JPH01171397A (en) | 1987-12-25 | 1987-12-25 | Transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62332561A JPH01171397A (en) | 1987-12-25 | 1987-12-25 | Transmission equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01171397A true JPH01171397A (en) | 1989-07-06 |
Family
ID=18256297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62332561A Pending JPH01171397A (en) | 1987-12-25 | 1987-12-25 | Transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01171397A (en) |
-
1987
- 1987-12-25 JP JP62332561A patent/JPH01171397A/en active Pending
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