JPS6068739A - Method for supervising transmission line - Google Patents

Method for supervising transmission line

Info

Publication number
JPS6068739A
JPS6068739A JP58175184A JP17518483A JPS6068739A JP S6068739 A JPS6068739 A JP S6068739A JP 58175184 A JP58175184 A JP 58175184A JP 17518483 A JP17518483 A JP 17518483A JP S6068739 A JPS6068739 A JP S6068739A
Authority
JP
Japan
Prior art keywords
transmission line
communication processing
transmission path
processing device
transmission
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
Application number
JP58175184A
Other languages
Japanese (ja)
Inventor
Eiji Aranaka
新中　栄治
Masao Nakamura
中村　雅男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP58175184A priority Critical patent/JPS6068739A/en
Publication of JPS6068739A publication Critical patent/JPS6068739A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To prevent the substantial processing capability of a communication processing device from being deteriorated by providing a transmission line supervisory device to both ends of a transmission line. CONSTITUTION:The transmission line supervisory devices 1, 2 are connected to both ends of a common transmission line 3 and a fixed telegraphic message is transmitted to the communication processing device 6 having a function supervising the transmission line at each prescribed time from the transmission line supervisory devices 1, 2. The communication processing device 6 supervises the transmission line by checking whether or not the fixed telegraphic message is received at each prescribed time. Thus, the substantial processing capability is prevented from being deteriorated by releasing the communication processing device from the supervision of transmission line.

Description

【発明の詳細な説明】 （技術分野） 本発明は通信システムにおける伝送路の監視に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to monitoring of transmission paths in communication systems.

（背景技術） 従来、相カーに通信＋＋１能な複数の通信処理装置を共
通の伝送路に接続してなるシステムにおいて、伝送路の
状態を監視しようとする場合複数の通信処理装置のうち
の１つに伝送路を監視する機能を持たせ伝送路を監視す
る機能を持った通信処理装置が、伝送路のトＩ４端にあ
る通信処理装置を認識してそれらの通信処理装置と一定
時間（ｉｊに通信を行なって、伝送路を監視しなければ
ならなかった。(Background Art) Conventionally, in a system in which a plurality of communication processing devices capable of communicating with each other are connected to a common transmission path, when the state of the transmission path is to be monitored, one of the plurality of communication processing devices is connected to a common transmission path. A communication processing device with a function to monitor the transmission path recognizes the communication processing device at the end of the transmission path, and communicates with those communication processing devices for a certain period of time (ij). transmission lines had to be monitored.

この場合伝送路の両端にある通信処理装置には、余分な
負荷がかかり、さらに伝送路を監視する機能を持つ通信
処理装置は、常に伝送路の両端にある通信処理装置を認
識しなければならないため、本来の処理能力が低下する
という欠点があった。In this case, an extra load is placed on the communication processing devices at both ends of the transmission path, and communication processing devices with the function of monitoring the transmission path must always recognize the communication processing devices at both ends of the transmission path. Therefore, there was a drawback that the original processing capacity was reduced.

（ｆｆｉ明の課題） 本発明の目的は上記の欠点を解決し、通信システムにお
ける伝送路の監視を容易に行なえるようにしたもので、
その特徴は、相互に通信可能な複数の通信処理装置を共
通の伝送路に接続してなるシステムにおいて、伝送路の
両端に一定時間間隔で複数の通信処理装置のうち、伝送
路を監視する機能を持つ通信処理装置に対して固定電文
を送信する機能を持つ伝送路監視装置を設け、上記通信
処理装置が伝送路監視装置からの固定電文を所定１１１
Ｉ間間隔で受信しないときは異状と判定することによっ
て、伝送路の保守監視する伝送路監視方式（発り１の構
成およびｆ＋：Ｉｌｉ　）第１図は本発明の実施例であ
る。第１図において１．２は伝送路監視装置、３は伝送
路、４より８は通信処理装置１１．２１はトランシーバ
、　１２゜２２は送受信制御部、　１３．２３はタイマ
である。通信処理装置６が、伝送路を監視する機能を持
つ。(Problems addressed by FFI Akira) The purpose of the present invention is to solve the above-mentioned drawbacks and to facilitate monitoring of transmission paths in communication systems.
Its feature is that in a system in which multiple communication processing devices that can communicate with each other are connected to a common transmission path, the transmission path is monitored at fixed time intervals at both ends of the transmission path. A transmission line monitoring device having a function of transmitting a fixed message to a communication processing device with a predetermined 111
A transmission line monitoring method (configuration of origin 1 and f+:Ili) for maintenance and monitoring of the transmission line by determining that there is an abnormality when no data is received at intervals of I. FIG. 1 shows an embodiment of the present invention. In FIG. 1, 1.2 is a transmission path monitoring device, 3 is a transmission path, 4 to 8 are communication processing devices 11.21 is a transceiver, 12.22 is a transmission/reception control unit, and 13.23 is a timer. The communication processing device 6 has a function of monitoring the transmission path.

第２図において、Ｆは同期パターン部、ＲＡＤは送り先
アドレス部ＳＡＤは発信元アドレス部、Ｃはコマンド部
であり、固定電文を送信するときは、伝送路監視装置か
らの一定時間ごとのアテンションであることをしめずコ
マンドである。In Fig. 2, F is the synchronization pattern section, RAD is the destination address section, SAD is the source address section, and C is the command section. It is a command without saying something.

■は情報部であり伝送路監視装置のステータス情報であ
る。Ｆｅ２はフレームチェックコード部である。3 is an information section, which is status information of the transmission path monitoring device. Fe2 is a frame check code section.

伝送路監視装置１のタイマ１３は設定された時間１．ご
とに送受信制御部１２にＩ・リガを送出し、送受信制御
部１２は通信処理装置６に対して、第２図に示すような
固定電文を送信する。同様に伝送路監視装置２のタイマ
２３は設定された時間ｔ２ごとに送受信制御部２２にト
リガを送出し送受信制御部２２は通信処理装置６に対し
て第２図に示すような固定電文を送信する。一定時間ｔ
ｌ＋ｔ２の大きさは、１．＝１．、でもｔ１洪ｔ２でも
よくまた１、、１２は２図にしめずような電文により、
すべての通信処理装置より設定が可能である。通信対“
耳装置６はＴ、、Ｔ２間隔以内に伝送路監視装置ｌ、及
び伝送路監視装置２からの固定電文を受信することによ
って伝送路の保守監視を行なうことができる。The timer 13 of the transmission path monitoring device 1 runs for the set time 1. The transmission/reception control section 12 sends an I.Riga to the transmission/reception control section 12 each time, and the transmission/reception control section 12 transmits a fixed message as shown in FIG. 2 to the communication processing device 6. Similarly, the timer 23 of the transmission path monitoring device 2 sends a trigger to the transmission/reception control unit 22 at every set time t2, and the transmission/reception control unit 22 transmits a fixed message as shown in FIG. 2 to the communication processing device 6. do. fixed time t
The size of l+t2 is 1. =1. , but even in t1 Hong t2, 1, 12 is by a telegram not shown in Figure 2,
Settings can be made from all communication processing devices. Communication vs.
The ear device 6 can maintain and monitor the transmission path by receiving fixed messages from the transmission path monitoring device 1 and the transmission path monitoring device 2 within intervals T, , T2.

Ｔ、、Ｔ２はＴ、≧ｔ、、Ｔ２≧ｔ２である。T,,T2 is T,≧t,,T2≧t2.

伝送路監視装置ｌから電文が来ない場合、通信処理装置
６と伝送路監視装置ｌとの間で異常が発生していること
を検出できる。また、伝送路監視装置２から電文が来な
い場合、通信処理装置６と伝送路監視装置２との間で異
常が発生していることを検出できる。通信処理装置６と
伝送路監視装置ｌとの間で異常が発生していることを検
出した場合、通信処理装置６は通信処理装置５、通信処
理装置４と順に通信をおこない、異常が発生している個
所を調査し、さらにオペレータコール１７て、伝送路に
異常が発生したことおよび異常発生個所をオペレータに
通知する。If no message is received from the transmission path monitoring device l, it can be detected that an abnormality has occurred between the communication processing device 6 and the transmission path monitoring device l. Further, if a message is not received from the transmission path monitoring device 2, it is possible to detect that an abnormality has occurred between the communication processing device 6 and the transmission path monitoring device 2. When it is detected that an abnormality has occurred between the communication processing device 6 and the transmission path monitoring device 1, the communication processing device 6 communicates with the communication processing device 5 and then the communication processing device 4 in order to confirm that the abnormality has occurred. In addition, an operator call 17 is made to notify the operator that an abnormality has occurred in the transmission line and the location where the abnormality has occurred.

（発明の効果） 以上説明したように、伝送路の両端に伝送路監視装置を
設けることにより、従来伝送路の両端に接続されていた
通信処理装置にかがっていた負荷をなくし、さらに伝送
路を監視する機能を持つ通信処理装置は伝送路の両端に
接続されている通信処理装置を認識することなしに、伝
送路の保守監視を容易に行なうことができる。(Effects of the Invention) As explained above, by providing transmission line monitoring devices at both ends of the transmission line, the load placed on the communication processing equipment conventionally connected to both ends of the transmission line can be eliminated, and the transmission line can be further improved. A communication processing device having a monitoring function can easily maintain and monitor the transmission path without recognizing the communication processing devices connected to both ends of the transmission path.

【図面の簡単な説明】[Brief explanation of drawings]

ｆｆｒ、１図は本発明の一実施例を示す図、第２図は伝
送路監視装置が送信する固定電文の一例を示す図である
。 １、２−ｍ−伝送路監視装置、３−　伝送路、４〜８−
ｍ−通信処理装置、 １１、２１−−−　トランシーバ、 １２、２２−ｍ−送受信制御部。 １３、２３−ｍ−タイマ。 ４、′ｒ詐出出願 人電気工業株式会社 特許出願代理人 ’ｊｔ理士　山水、へり−ffr, FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a fixed message transmitted by a transmission path monitoring device. 1, 2-m-transmission line monitoring device, 3-transmission line, 4-8-
m-communication processing device; 11, 21--transceiver; 12, 22-m-transmission/reception control unit. 13, 23-m-timer. 4, 'r Fraudulent applicant Denki Kogyo Co., Ltd. Patent application agent 'jt Physician Sansui, Heri -

Claims (1)

【特許請求の範囲】[Claims] 相！ｊ−に通信可能な複数の通信処理装置を共通の伝送
路に接続してなるシステムにおいて、伝送路の両端に一
定時間間隔で複数の通信処理装置のうち、伝送路を監視
する機能を持つ通信処理装置に対して固定電文を送信す
る機能を持つ伝送路監視装置を設け、上記通信処理装置
が伝送路監視装置からの固定電文を所定時間間隔で受信
しないときphase! In a system in which multiple communication processing devices that can communicate with each other are connected to a common transmission path, a communication device that has the function of monitoring the transmission path at fixed time intervals at both ends of the transmission path. A transmission line monitoring device having a function of transmitting a fixed message to the processing device is provided, and when the communication processing device does not receive the fixed message from the transmission line monitoring device at a predetermined time interval.
JP58175184A 1983-09-24 1983-09-24 Method for supervising transmission line Pending JPS6068739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58175184A JPS6068739A (en) 1983-09-24 1983-09-24 Method for supervising transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58175184A JPS6068739A (en) 1983-09-24 1983-09-24 Method for supervising transmission line

Publications (1)

Publication Number Publication Date
JPS6068739A true JPS6068739A (en) 1985-04-19

Family

ID=15991743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58175184A Pending JPS6068739A (en) 1983-09-24 1983-09-24 Method for supervising transmission line

Country Status (1)

Country Link
JP (1) JPS6068739A (en)

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