JPS6276340A - Data processor fault notifying system - Google Patents

Data processor fault notifying system

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Publication number
JPS6276340A
JPS6276340A JP60215836A JP21583685A JPS6276340A JP S6276340 A JPS6276340 A JP S6276340A JP 60215836 A JP60215836 A JP 60215836A JP 21583685 A JP21583685 A JP 21583685A JP S6276340 A JPS6276340 A JP S6276340A
Authority
JP
Japan
Prior art keywords
data
transmission
data processing
signal
circuit
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
JP60215836A
Other languages
Japanese (ja)
Inventor
Shigeki Nakamura
中村 繁樹
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP60215836A priority Critical patent/JPS6276340A/en
Publication of JPS6276340A publication Critical patent/JPS6276340A/en
Pending legal-status Critical Current

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  • Multi Processors (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To recognize surely a fault of other data processor by allowing each data transmitter to detect the intermission of a signal from a data processor connected thereto and sending a message representing it to a common transmission line in a multiple address packet. CONSTITUTION:A data transmitter 2 consists of a reception circuit 101 from a common transmission line, a transmission circuit 102, a transmission circuit 104 to the data processor, a reception data buffer 105 from the common transmission line, a reception data buffer 106 from the data processor, a control circuit 107, a transmission resister 108 and a signal interruption detection circuit 109. When the signal from the data processor 3 to the data transmitter 2 is intermitted, the signal interruption detection circuit 109 detects it and informs it to the control circuit 107. Then the control circuit 107 starts the transmission register 108. The transmission register 108 stores a fault notice frame of a multiple address in advance and sends a fault notice frame to the common transmission line 1 through the transmission circuit 102 in a form of the multiple address.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、データ伝送システムにおけるデータ処理装置
障害通知方式に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing device failure notification system in a data transmission system.

〔概 要〕〔overview〕

本発明は、共通伝送路に複数のデータ伝送装置が接続さ
れさらに各データ伝送装置にデータ処理装置がそれぞれ
接続され、各データ伝送装置と各データ処理装置との間
で、パケットを含む信号により常時信号伝送が行われる
データ伝送システムにおけるデータ処理装置障害通知方
式において、上記各データ伝送装置は、その接続された
データ処理装置からの信号が途絶えたことを検出し、そ
の旨のメツセージを回報パケットで共通伝送路に送信す
る手段を含むことにより、 簡単、確実に他のデータ処理装置の障害を認識できるよ
うにしたものである。
In the present invention, a plurality of data transmission devices are connected to a common transmission path, a data processing device is connected to each data transmission device, and signals including packets are constantly communicated between each data transmission device and each data processing device. In a data processing device failure notification system in a data transmission system in which signal transmission is performed, each of the data transmission devices described above detects that the signal from the connected data processing device has been interrupted, and sends a message to that effect in a circular packet. By including means for sending data to a common transmission path, it is possible to easily and reliably recognize failures in other data processing devices.

〔従来の技術〕[Conventional technology]

遠隔地に置かれた複数のデータ処理装置間を、伝送線路
で接続して分散処理を行うデータ伝送システムにおいて
は、これらのデータ処理装置は無人運転されることが多
い。その場合、あるデータ処理装置が故障したり、停電
で電源断が起こっても、従来は他のデータ処理装置には
そのことが検出できないシステム構成となっていた。
In data transmission systems that perform distributed processing by connecting a plurality of data processing devices located in remote locations with transmission lines, these data processing devices are often operated unmanned. In this case, even if one data processing device breaks down or the power is cut off due to a power outage, the conventional system configuration has been such that this cannot be detected by other data processing devices.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従って、データの送(3に対して、送信先のデータ処理
装置の故障や電源断のために応答がなくても無意味に再
送信を繰り返すという欠点があった。
Therefore, data transmission (3) has the disadvantage that retransmission is repeated pointlessly even if there is no response due to a failure or power outage of the destination data processing device.

本発明の目的は、上記の欠点を除去することにより、他
のデータ処理装置の障害を認識して、無意味なデータの
再送信を繰り返すことをなくした、データ処理装置障害
通知方式を提供することにある。
An object of the present invention is to provide a data processing device failure notification method that eliminates the above-mentioned drawbacks and eliminates the need to repeatedly retransmit meaningless data by recognizing failures in other data processing devices. There is a particular thing.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

本発明は、?UDのデータ処理装置と、この複数のデー
タ処理装置にそれぞれ接続された複数のデータ伝送装置
と、この複数のデータ伝送装置が接続された共通伝送路
とを備え、上記データ処理装置の各々とそれに接続され
た上記データ伝送装置との間でパケットによる通信を行
い、かつこのパケットが伝送されていない時間にも特定
の信号の伝送を行うように構成されたデータ伝送システ
ムにおいて、」二記各データ伝送装置は、その接続され
た上記データ処理装置からの上記パケットおよび上記特
定の信号が途絶えたことを検出する信号断検出手段と、
この信号断検出手段が信号断を検出したときその旨を通
知するメッセージを同報パケットとして上記共通伝送路
に送信する送信手段とを備えたことを特徴とする。
What is the present invention? A UD data processing device, a plurality of data transmission devices respectively connected to the plurality of data processing devices, and a common transmission path to which the plurality of data transmission devices are connected, each of the data processing devices and the In a data transmission system configured to perform packet communication with the connected data transmission device and to transmit specific signals even when the packets are not being transmitted, The transmission device includes signal disconnection detection means for detecting that the packet and the specific signal from the connected data processing device are interrupted;
The present invention is characterized in that, when the signal disconnection detecting means detects a signal disconnection, the transmitting means transmits a message notifying the fact to the common transmission path as a broadcast packet.

〔作 用〕[For production]

本発明は、データ伝送装置に設けられた信号診断検出回
路により、その接続されたデータ処理装置からのパケッ
トおよびパケットが伝送されない時間に伝送される特定
の信号(例えばタイムフィル)が途絶えたこと、すなわ
ちデータ処理装置が障害になったことを検出して、送信
手段により、その旨のメツセージを回報パケットにより
共通伝送路に伝送する。従って、他のすべてのデータ伝
送装置は障害になった相手データ処理装置を、従来のよ
うに無意味なデータ再送信を繰り返すことなく、簡単、
確実に確認できる。
The present invention detects when a signal diagnosis detection circuit provided in a data transmission device detects that packets from the connected data processing device and a specific signal (e.g., time fill) transmitted during a time when no packets are transmitted are interrupted; That is, when it is detected that the data processing device has failed, the transmitting means transmits a message to that effect to the common transmission path using a rerouting packet. Therefore, all other data transmission devices can easily transfer data to the other party's data processing device that has become a problem, without repeating meaningless data retransmissions as in the past.
You can definitely check it.

〔実施例〕〔Example〕

以下、本発明の実施例について図面を参照して説明する
Embodiments of the present invention will be described below with reference to the drawings.

第1図は本発明の一実施例によるデータ伝送装置の構成
を示すブロック図である。第1図において、データ伝送
装置2は、共通伝送路からの受信回路101、共通伝送
路への送信回路102 、データ処理装置からの受信回
路1o3、データ処理装置への送信回路lO4、共通伝
送路からの受信データバッファ105、データ処理装置
からの受信データバッファ106、制?111回路1o
7、送信レジスタ1o8、信号断検出回路109を含む
FIG. 1 is a block diagram showing the configuration of a data transmission device according to an embodiment of the present invention. In FIG. 1, the data transmission device 2 includes a reception circuit 101 from a common transmission path, a transmission circuit 102 from the common transmission path, a reception circuit 1o3 from the data processing device, a transmission circuit 1O4 to the data processing device, and a transmission circuit 102 from the common transmission path. The received data buffer 105 from the data processing device, the received data buffer 106 from the data processing device, the control? 111 circuit 1o
7, a transmission register 1o8, and a signal disconnection detection circuit 109.

第2図は本発明を適用するデータ伝送システムの構成を
示すブロック図で、共通伝送路としては、ループ状伝送
路1を備え、これにデータ伝送装置を4台接続した場合
の例である。第2図において、データ処理装置3は、デ
ータ伝送装置2を通じてループ状伝送路1で相互接続さ
れている。個々のデータ処理装置3とデータ伝送装置2
の間では、パケット通信が行われており、かつパケット
が伝送されていない時間も特定の信号(タイムフィル)
の伝送が行われている。ループ状伝送路1での通信プロ
トコルについては特に規定しない。
FIG. 2 is a block diagram showing the configuration of a data transmission system to which the present invention is applied, and is an example in which a loop-shaped transmission path 1 is provided as a common transmission path, and four data transmission devices are connected to this. In FIG. 2, data processing devices 3 are interconnected by a loop-shaped transmission line 1 through a data transmission device 2. In FIG. Individual data processing device 3 and data transmission device 2
During packet communication, a specific signal (time fill) is also used during the time when packets are not being transmitted.
transmission is taking place. The communication protocol on the loop-shaped transmission path 1 is not particularly specified.

本発明の特徴は、第1図において、信号診断検出回路1
09、制御回路107、送信レジスタ108を設けたこ
とにある。
The feature of the present invention is that in FIG.
09, a control circuit 107 and a transmission register 108 are provided.

次に、本実施例の動作について説明する。第2図ニオい
て、データ処理装置3が正常に動作していれば、常に信
号(パケットデータもしくはタイムフィル)が、自デー
タ伝送装置2へ向けて送出される。もし、この信号が途
絶えると、信号断検出回路109がこのことを検出し制
御回路107へ通知する。すると、制御回路107は送
信レジスタ108へ起動をかける。送信レジスタ108
には、あらかじめ同報アドレスの障害通知フレームが格
納されており、起動がかかると、送信回路102を通し
て共通伝送路1へ障害通知フレームを回報アドレスで送
出する。
Next, the operation of this embodiment will be explained. As shown in FIG. 2, if the data processing device 3 is operating normally, a signal (packet data or time fill) is always sent to its own data transmission device 2. If this signal is interrupted, the signal interruption detection circuit 109 detects this and notifies the control circuit 107. Then, the control circuit 107 activates the transmission register 108. Transmission register 108
A failure notification frame with a broadcast address is stored in advance, and when activated, the failure notification frame is sent to the common transmission path 1 through the transmission circuit 102 with a broadcast address.

なお、上記実施例において適用されるデータ伝送システ
ムとして、ループ状の伝送路を備えたものを例としてあ
げたが、その他にもいろいろな伝送路の適用が考えられ
る。例えば、パス状の伝送路の場合には第3図のように
なる。第3図のデータ伝送システムは第2図のデータ伝
送システムの例におけるループ状伝送路1をバス状伝送
路201に置き換えた例である。データ処理装置203
は第2図のデータ処理装置3に相当し、データ伝送装置
202は第2図のデータ伝送装置2に相当する。
In addition, although the data transmission system applied in the above embodiment is provided with a loop-shaped transmission line as an example, various other transmission lines may be used. For example, in the case of a path-like transmission line, the situation is as shown in FIG. The data transmission system of FIG. 3 is an example in which the loop-shaped transmission line 1 in the example of the data transmission system of FIG. 2 is replaced with a bus-shaped transmission line 201. Data processing device 203
corresponds to the data processing device 3 in FIG. 2, and the data transmission device 202 corresponds to the data transmission device 2 in FIG.

なお、第3図におけるデータ伝送装置202の動作につ
いては、第2図におけるデータ伝送装置2の場合の動作
と全く同じである。
Note that the operation of the data transmission device 202 in FIG. 3 is exactly the same as the operation of the data transmission device 2 in FIG. 2.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明は、データ伝送装置がデー
タ処理装置の障害を検出して、他のすべてのデータ処理
装置へ同報パケットにより通知することにより、他の全
装置に簡単な構成で伝達することができる。これにより
無意味なデータ再送信を繰り返すことなく、他のデータ
処理装置の障害を認識することができる効果がある。
As explained above, the present invention allows a data transmission device to detect a failure in a data processing device and notify all other data processing devices using a broadcast packet, thereby providing a simple configuration for all other data processing devices. can be transmitted. This has the effect that failures in other data processing devices can be recognized without repeating meaningless data retransmissions.

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

第1図は本発明の一実施例によるデータ伝送装置の構成
を示すブロック図。 第2図および第3図はそれぞれ本実施例が適用されるデ
ータ伝送システムを示すプロ、り図。 ■・・・ループ状伝送路、2・・・データ伝送装置、3
・・・データ処理装置、101.103・・・受信回路
、102.104・・・送信回路、105.106・・
・受信データバッファ、107・・・制御回路、108
・・・送信レジスタ、109・・・信号断検出回路、2
01・・・バス状伝送路、202・・・データ伝送装置
、203・・・データ処理装置。 実施例 実施例 M 3 図
FIG. 1 is a block diagram showing the configuration of a data transmission device according to an embodiment of the present invention. FIG. 2 and FIG. 3 are professional diagrams each showing a data transmission system to which this embodiment is applied. ■...Loop-shaped transmission line, 2...Data transmission device, 3
...Data processing device, 101.103...Reception circuit, 102.104...Transmission circuit, 105.106...
- Reception data buffer, 107... control circuit, 108
...Transmission register, 109...Signal disconnection detection circuit, 2
01... bus-like transmission line, 202... data transmission device, 203... data processing device. Example Example M 3 Figure

Claims (1)

【特許請求の範囲】[Claims] (1)複数のデータ処理装置と、 この複数のデータ処理装置にそれぞれ接続された複数の
データ伝送装置と、 この複数のデータ伝送装置が接続された共通伝送路とを
備え、 上記データ処理装置の各々とそれに接続された上記デー
タ伝送装置との間でパケットによる通信を行い、かつこ
のパケットが伝送されていない時間にも特定の信号の伝
送を行うように構成されたデータ伝送システムにおいて
、 上記各データ伝送装置は、その接続された上記データ処
理装置からの上記パケットおよび上記特定の信号が途絶
えたことを検出する信号断検出手段と、 この信号断検出手段が信号断を検出したときその旨を通
知するメッセージを同報パケットとして上記共通伝送路
に送信する送信手段と を備えたことを特徴とするデータ処理装置障害通知方式
(1) A plurality of data processing devices, a plurality of data transmission devices respectively connected to the plurality of data processing devices, and a common transmission path to which the plurality of data transmission devices are connected; In a data transmission system configured to perform packet communication between each device and the data transmission device connected thereto, and to transmit a specific signal even when the packet is not being transmitted, each of the above The data transmission device includes a signal disconnection detection means for detecting the interruption of the packet and the specific signal from the connected data processing device, and a signal disconnection detection means that detects the interruption of the signal when the signal disconnection detection means detects the interruption of the signal. 1. A data processing device failure notification system, comprising: a transmitting means for transmitting a message to be notified as a broadcast packet to the common transmission path.
JP60215836A 1985-09-27 1985-09-27 Data processor fault notifying system Pending JPS6276340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60215836A JPS6276340A (en) 1985-09-27 1985-09-27 Data processor fault notifying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60215836A JPS6276340A (en) 1985-09-27 1985-09-27 Data processor fault notifying system

Publications (1)

Publication Number Publication Date
JPS6276340A true JPS6276340A (en) 1987-04-08

Family

ID=16679068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60215836A Pending JPS6276340A (en) 1985-09-27 1985-09-27 Data processor fault notifying system

Country Status (1)

Country Link
JP (1) JPS6276340A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6482723A (en) * 1987-09-25 1989-03-28 Hitachi Ltd Terminal state control method
JPH08194670A (en) * 1995-01-17 1996-07-30 Nitsuko Corp Monitoring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452944A (en) * 1977-10-05 1979-04-25 Fujitsu Ltd Circuit monitor system
JPS59191960A (en) * 1983-04-15 1984-10-31 Hitachi Ltd Communication system
JPS6072351A (en) * 1983-09-28 1985-04-24 Hitachi Ltd Method for supervising operating condition of packet communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452944A (en) * 1977-10-05 1979-04-25 Fujitsu Ltd Circuit monitor system
JPS59191960A (en) * 1983-04-15 1984-10-31 Hitachi Ltd Communication system
JPS6072351A (en) * 1983-09-28 1985-04-24 Hitachi Ltd Method for supervising operating condition of packet communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6482723A (en) * 1987-09-25 1989-03-28 Hitachi Ltd Terminal state control method
JP2569075B2 (en) * 1987-09-25 1997-01-08 株式会社日立製作所 Subscriber line termination device and terminal state control method
JPH08194670A (en) * 1995-01-17 1996-07-30 Nitsuko Corp Monitoring device

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