JPH0230252A - Multiplex station - Google Patents

Multiplex station

Info

Publication number
JPH0230252A
JPH0230252A JP63181103A JP18110388A JPH0230252A JP H0230252 A JPH0230252 A JP H0230252A JP 63181103 A JP63181103 A JP 63181103A JP 18110388 A JP18110388 A JP 18110388A JP H0230252 A JPH0230252 A JP H0230252A
Authority
JP
Japan
Prior art keywords
signal
communication processing
processing unit
received signal
transmission signal
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
JP63181103A
Other languages
Japanese (ja)
Inventor
Shingo Yamane
山根 信吾
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP63181103A priority Critical patent/JPH0230252A/en
Publication of JPH0230252A publication Critical patent/JPH0230252A/en
Pending legal-status Critical Current

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  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To devise the station such that a fault of a communication processing section of the standby system is able to be detected prior to the changeover of the active system into the standby system by comparing a reception signal and a transmission signal. CONSTITUTION:A reception signal 4a from a reception section 13 is given to a communication processing section 20a and a transmission signal 5a from the communication processing section 20a is given to a transmission section 14 and a communication processing section 20b of the standby system. Comparison processing sections 6a, 6b compare the reception signal and the transmission signal of its own system so as to discriminate whether or not the communication processing sections 20a, 20b are normal. The communication processing section 20b of the standby system relays the reception signal as the transmission signal, then the reception signal and the transmission signal have to be coincident. On the other hand, since the communication processing section 20a of the active system sends the data of its own system while being superimposed on the transmission signal, the reception signal and the transmission signal may not be coincident.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、待機系となるステーションを自己診断する
多重化ステーションに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multiplexing station that self-diagnoses a standby station.

〔従来の技術〕[Conventional technology]

第2図は例えば特願昭61−202037号に示された
従来のステーションを示すブロック図であり、C13は
受信部、Iは送信部、(21a) (21b)はバイパ
ススイッチであり、(21a) (21b)は直列に接
続されている。また、(20a) (20b)は通信処
理部でありこの通信処理部からのバイパス指令出力(3
0a) (30,b)は各々バイパススイッチ(21a
) (21b)へ接続されている。
FIG. 2 is a block diagram showing a conventional station shown in Japanese Patent Application No. 61-202037, for example, where C13 is a receiving section, I is a transmitting section, (21a) and (21b) are bypass switches, and (21a ) (21b) are connected in series. Further, (20a) and (20b) are communication processing units, and the bypass command output (3
0a) (30,b) are the bypass switches (21a
) (21b).

次に動作について説明する。Next, the operation will be explained.

まず、バイパススイッチ(21a)及び(21b)の動
作としてはバイパス指令(30a) (30b)の制御
により2通りの接続状態に切り替えられる。
First, the operations of the bypass switches (21a) and (21b) are switched to two connection states under the control of bypass commands (30a) and (30b).

バイパス指令が′1″の時は(21a)のような接続と
なり、0′の時には(21b)のような接続となる。
When the bypass command is ``1'', the connection is as shown in (21a), and when it is 0', the connection is as shown in (21b).

このように動作するバイパススイッチの1台(21a)
には受信部(13にて光信号から電気信号に変換され九
受信信号が入力され、バイパス指令(30a)が1′で
あるためこの受信信号は通信処理部(20a)へ入力さ
れ、又通信処理部(20a )からの送信信号はバイパ
ススイッチ(21a)を経由して、もう1台のバイパス
スイッチ(21b)へ入力される。この送信信号はバイ
パス指令(30k))が0゛であるため、送信部Iへ入
力され、光信号に変換されて送出される。
One of the bypass switches (21a) that operates like this
The receiving unit (13) converts the optical signal into an electrical signal and inputs the received signal, and since the bypass command (30a) is 1', this received signal is input to the communication processing unit (20a), and the communication The transmission signal from the processing unit (20a) is input to the other bypass switch (21b) via the bypass switch (21a).This transmission signal is transmitted because the bypass command (30k) is 0. , is input to the transmitter I, is converted into an optical signal, and is sent out.

以上の説明は、バイパス指令(30a )が’1’ 、
 (30b)が60′の場合を示したが、バイパス指令
(30a)が0′、(30b)が1″の場合は、逆に受
信部C131からの受信信号は通信処理部(20b)へ
入力され、又通信処理部(20b)からの送信信号が送
信部Iへ入力されることになる。
In the above explanation, when the bypass command (30a) is '1',
(30b) is 60', but if the bypass command (30a) is 0' and (30b) is 1'', the received signal from the receiving unit C131 is input to the communication processing unit (20b). Also, a transmission signal from the communication processing section (20b) is input to the transmission section I.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の多重化ステーションは以上のように構成されてい
るので、待機系の通信処理部の異常が、待機系に切替る
(待機系から動作系になる)前に検出できす、また切替
った後でも、どの通信処理部に異常があるのかを調べる
のに時間を費やすなどの課題があった。
Conventional multiplexing stations are configured as described above, making it possible to detect an abnormality in the communication processing section of the standby system before it switches to the standby system (from the standby system to the active system). Even after that, there were problems, such as spending time investigating which communication processing unit had the problem.

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、待機系の通信処理部の異常を、待機系に切替
る前に検出でき、ステーションの多重化を確実にし、シ
ステムの信頼性を向上させることを目的とする。
This invention was made to solve the above-mentioned problems. It is possible to detect an abnormality in the communication processing unit of the standby system before switching to the standby system, ensure multiplexing of stations, and improve system reliability. The purpose is to improve sexuality.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係る多重化ステーションは、自系の通信処理
部に入力される受信信号と、自系の通信処理部から出力
する送信信号を比較することにより、待機系の通信処理
部の自己診断を常時行うようにしたものである。
The multiplexing station according to the present invention performs self-diagnosis of the standby communication processing unit by comparing the received signal input to the communication processing unit of the own system and the transmission signal output from the communication processing unit of the own system. This is something that is done all the time.

〔作用〕[Effect]

この発明における自系の受信信号と送信信号を比較する
手段は、待機系の通信処理部が正常か、異常かを判断す
る。
The means for comparing the received signal and the transmitted signal of the own system in the present invention determines whether the standby system communication processing section is normal or abnormal.

なお、待機系の通信処理部は、受信信号を中継して送信
信号とするため、受信信号と送信信号は一致する。
Note that the standby communication processing unit relays the received signal and uses it as a transmitted signal, so the received signal and the transmitted signal match.

一方、動作系の通信処理部は、自系のデータも送信信号
に乗せるため、受信信号と送信信号は一致しない。
On the other hand, since the communication processing section of the operating system also adds its own data to the transmission signal, the reception signal and the transmission signal do not match.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第1図において、(131は受信部、側は送信部、(1
a)(1b)はバイパススイッチ、(20a) (20
b)は通信処理部、(4a) (4b)は各々通信処理
部(20a) (20b) ヘの受信信号、(5a) 
(5b)は各々通信処理部(20a) (20b)から
の送信信号、(6a) (6b)は各々受信信号(4a
)(4b)と送信信号(5a) (5b)との比較処理
部、(30a) (30b)は各々通信処理部(20a
) (20b)からのバイパス指令出力であり各バイパ
ススイッチ(1a)(1b)とインバータ(7a) (
7b)に接続されてい゛る。また(&l) (8b)は
各々比較処理部(6a) (6b)からの出力とバイパ
ス指令(30a) (30b)の条件をとるためのAN
Dゲートであり、その出力は各々自己診断結果の判定出
力(91) (9b)となる。
In FIG. 1, (131 is a receiving section, the side is a transmitting section, (131 is a receiving section,
a) (1b) is a bypass switch, (20a) (20
b) is the communication processing unit, (4a) and (4b) are the received signals to the communication processing units (20a) and (20b) respectively, (5a)
(5b) are the transmission signals from the communication processing units (20a) and (20b), respectively, and (6a) and (6b) are the reception signals (4a), respectively.
) (4b) and the transmission signals (5a) (5b), (30a) (30b) are communication processing units (20a), respectively.
) (20b) is the bypass command output from each bypass switch (1a) (1b) and inverter (7a) (
7b). (&l) (8b) is an AN for taking the output from the comparison processing units (6a) (6b) and the conditions of the bypass commands (30a) (30b), respectively.
These are D gates, and their outputs are the judgment outputs (91) (9b) of the self-diagnosis results.

次に動作について説明する。Next, the operation will be explained.

バイパススイッチ(1a)及び(1b)の動作としては
バイパス指令(30a) (30b)の制御により2通
シの接続状態に切替られる。
The operations of the bypass switches (1a) and (1b) are switched to two connection states under the control of bypass commands (30a) and (30b).

バイパス指令が11′の時は(1a)のような接続とな
り、0″の時は(1b)のような接続となる。
When the bypass command is 11', the connection is as shown in (1a), and when it is 0'', the connection is as shown in (1b).

受信部αJにて光信号から電気信号に変換された受信信
号(4a)が1通信処理部(20a)へ入力され、通信
処理部(20a)からの送信信号(5a)はバイパスス
イッチ(1a)を経由して、通信処理部(20b)へ入
力される。通信処理部(20b)からの送信信号(5b
)はバイパス指令(30b)が@o1であるため、送信
部側へは送信信号(5a)が渡され、光信号に変換され
て送出される。
A received signal (4a) converted from an optical signal to an electrical signal at the receiving section αJ is input to one communication processing section (20a), and a transmission signal (5a) from the communication processing section (20a) is sent to a bypass switch (1a). The data is input to the communication processing unit (20b) via the . Transmission signal (5b) from the communication processing unit (20b)
), the bypass command (30b) is @o1, so the transmission signal (5a) is passed to the transmitter side, converted into an optical signal, and sent out.

以上の説明は、バイパス指令(aOa )が’1’ 、
 (30b)が10′の場合を示したが、バイパス指令
(30a )が0″、 (30b)が′1″の場合は、
逆に受信部(131からの受信信号(4a)はそのまま
通信処理部(20b)へ入れされ、また通信処理部(2
01))からの送信信号(5b)が送信部Iへ渡される
ことになる。
In the above explanation, when the bypass command (aOa) is '1',
The case where (30b) is 10' is shown, but if the bypass command (30a) is 0'' and (30b) is '1'',
Conversely, the received signal (4a) from the receiving unit (131) is directly input to the communication processing unit (20b), and is also input to the communication processing unit (20b).
The transmission signal (5b) from 01)) will be passed to the transmitter I.

従来の実施例では受信信号(4a) (4b)もバイパ
ススイッチ(21a) (21b)で開閉されていたが
、本実施例では、受信信号(4a) (4b)はバイパ
ススイッチ(1a) (lb)の開閉とは無関係に、各
々通信処理部(20a’) (20b)に常時入力され
ている。
In the conventional embodiment, the received signals (4a) (4b) were also opened and closed by the bypass switches (21a) (21b), but in this embodiment, the received signals (4a) (4b) are switched by the bypass switches (1a) (lb ) are constantly input to the respective communication processing units (20a') and (20b), regardless of whether they are opened or closed.

この動作を除いては、以上の説明は従来実施例と同じで
ある。
Except for this operation, the above description is the same as the conventional embodiment.

さらに、受信信号(4a) (4b)と送信信号(5a
) (5b)は各々比較処理部(6a) (6k))に
渡される。
Furthermore, received signals (4a) (4b) and transmitted signals (5a)
) (5b) are respectively passed to comparison processing units (6a) (6k)).

バイパス指令(30a)が1′の時には、通信処理部(
20a)は動作系であり、自系のデータも送信信号(5
a)に乗せるため、受信信号(4a)と送信信号(5a
)は一致しない。
When the bypass command (30a) is 1', the communication processing unit (
20a) is the operating system, and the data of its own system is also sent by the transmission signal (5
a), the received signal (4a) and the transmitted signal (5a
) does not match.

バイパス指−1(30b)が′0′の時には、通信処理
部(20b)は待機系であシ、通信処理部(20b)は
、受信信号(4b)をそのままの信号形態で送信信号(
5b)として出力する。
When the bypass finger 1 (30b) is '0', the communication processing unit (20b) is a standby system, and the communication processing unit (20b) transmits the received signal (4b) in the same signal form as the transmitted signal (
5b).

従って待機系の通信処理部(20b )に関する受信信
号(4b)と送信信号(5b)は一致する。
Therefore, the received signal (4b) and the transmitted signal (5b) regarding the standby communication processing unit (20b) match.

なお、受信信号(4b)は通信処理部(20b)を通過
すると時間の遅延が生ずるため、比較処理部(6b)は
この時間遅延の補正を行う処理を加える。
Note that since a time delay occurs when the received signal (4b) passes through the communication processing section (20b), the comparison processing section (6b) adds processing to correct this time delay.

比較処理部(6b)は、受信信号(4b)と送信信号(
5b)の比較処理を行った後に、その結果をANDゲー
ト(8b)に渡す。ANDゲート(8b)は、待機系に
おいてはバイパス指令(30b)が101であり、イン
バータ(7b)にて反転した信号によシゲートが開く(
有意となる)方向となる。
The comparison processing unit (6b) compares the received signal (4b) and the transmitted signal (
After performing the comparison process of 5b), the result is passed to the AND gate (8b). In the AND gate (8b), the bypass command (30b) is 101 in the standby system, and the gate is opened by the signal inverted by the inverter (7b) (
becomes significant) direction.

従って判定出力(9b)は、比較処理部(6b)の結果
に委ねられることになり、受信信号(4b)と送信信号
(5b)が一致しておれば無意状態を、不一致(待機系
の通信処理部で異常が発生)であれば有意状態を表わす
ことになる。
Therefore, the judgment output (9b) is left to the result of the comparison processing unit (6b). If an abnormality has occurred in the processing unit), this indicates a significant state.

一方、動作系の比較処理部(6a)は、受信信号(4a
)と送信信号(5a)が不一致の状態で正常であり、比
較処理部(6a)の処理結果をそのまま判定出力(9a
)として出力するのは不具合であるため、インバータ(
7a)にてANDゲート(8a)からの出力を無意側に
抑えている。
On the other hand, the comparison processing unit (6a) of the operation system processes the received signal (4a
) and the transmission signal (5a) are in a mismatched state and are normal, and the processing result of the comparison processing unit (6a) is directly output for judgment (9a).
) is a malfunction, so the inverter (
7a) suppresses the output from the AND gate (8a) to the involuntary side.

比較処理部(6a) (6b) 、インバータ(7a)
 (7b) 、 A NDアゲートal) (81))
 、判定出力(9a) (9b)における以上の説明は
、バイパス指令(30a)が’1’ 、 (30a)が
%Ojの場合を示したが、バイパス指令(30a )が
@0’  (30b)が”l′の場合は、動作系と待機
系の関係が逆になるだけである。
Comparison processing unit (6a) (6b), inverter (7a)
(7b), AND Agate al) (81))
, Judgment output (9a) (9b) The above explanation shows the case where the bypass command (30a) is '1' and (30a) is %Oj, but when the bypass command (30a) is @0' (30b) When is "l', the relationship between the active system and the standby system is simply reversed.

従って、比較処理部(6b) 、インバータ(7b) 
t A NDアゲート8b)は動作系の動きをし、比較
処理部(6a)、インバータ(7a) 、 A N D
ゲート(8a)は待機系の動きをするのは申すまでもな
い。
Therefore, the comparison processing section (6b), the inverter (7b)
tAND Agate 8b) operates as an operating system, and includes a comparison processing section (6a), an inverter (7a),
Needless to say, the gate (8a) operates as a standby system.

なお、上記実施例では、2重比の例を示したが3重化以
上のものにも適用できる。即ち、多重化ステーションに
おける自己診断に適用できる。
In the above embodiment, an example of a double ratio is shown, but it can also be applied to a triple ratio or more. That is, it can be applied to self-diagnosis in multiplexing stations.

また、上記実施例では、バイパス指令(30a) (3
0b)がrHJで動作系、rLJで待機系となる動作に
ついて説明したが、動作系では判定出力(9a) (9
b)を無意側に抑える回路構成であれば上記実施例と同
様の効果を奏する。
Further, in the above embodiment, the bypass command (30a) (3
0b) is the active system at rHJ and the standby system is at rLJ, but in the active system, the judgment output (9a) (9
If the circuit configuration suppresses b) to an unexpected side, the same effect as the above embodiment can be achieved.

変形例を第3図の(al l (1)l l (C1に
示す。また、受信信号(4b)はバイパススイッチ(1
a)を介さずに受信部u3から直接受信するように多重
化してもよい。
A modified example is shown in (al l (1) l l (C1) in FIG. 3. Also, the received signal (4b)
It may be multiplexed so that it is directly received from the receiving unit u3 without going through a).

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば受信信号と送信信号の
比較を常時行うように構成したので、待機系の通信処理
部の異常が、待機系に切替る(待機系から動作系になる
)前に検出でき、また、異常が発生した待機系の通信処
理部を早期に発見でき、ステーションの多重化を確実に
実現できるので、システムの信頼性を向上させる効果が
ある。
As described above, according to the present invention, since the received signal and the transmitted signal are always compared, an abnormality in the communication processing section of the standby system can be switched to the standby system (from the standby system to the active system). In addition, a standby communication processing unit in which an abnormality has occurred can be detected early, and station multiplexing can be reliably realized, which has the effect of improving system reliability.

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

第1図はこの発明の一実施例によるステーションを示す
ブロック図、第2図は従来のステーションを示すブロッ
ク図、第3図はこの発明の他の実施例を示す判定出力回
路である。 (la) (1b)はバイパススイッチ、(6a) (
6b)は比較処理部、(30a) (30b)はバイパ
ス指令、(7a) (7b) (101)はインバータ
、(al) (8b)はANDゲート、(102)はN
ORゲート、(9a) (9b)は判定出力、(4a)
(4b)は受信信号、(5a) (5b)は送信信号。
FIG. 1 is a block diagram showing a station according to one embodiment of the invention, FIG. 2 is a block diagram showing a conventional station, and FIG. 3 is a judgment output circuit showing another embodiment of the invention. (la) (1b) is a bypass switch, (6a) (
6b) is a comparison processing unit, (30a) (30b) is a bypass command, (7a) (7b) (101) is an inverter, (al) (8b) is an AND gate, (102) is an N
OR gate, (9a) (9b) is judgment output, (4a)
(4b) is a received signal, (5a) (5b) is a transmitted signal.

Claims (1)

【特許請求の範囲】[Claims]  複数の通信処理部を多重化して使用する多重化ステー
ションにおいて、上記各通信処理部に受信信号と送信信
号とを比較する比較手段をそれぞれ設けると共に、上記
通信処理部の一つを運用系に他を待期系とする選択手段
を設け、運用系とした上記信号処理部は外部からの受信
信号を受信し、所定の処理をして送信信号として外部へ
送出し、待期系とした上記信号処理部は外部からの受信
信号または上記運用系信号処理部からの出力信号を受信
信号として受信し、この受信信号を無処理で送信信号と
して出力し、上記待期系の信号処理部の受信信号と送信
信号とが上記比較手段で比較され両者が同一信号であれ
ば正常と自己診断するようにしたことを特徴とする多重
化ステーション。
In a multiplexing station that multiplexes and uses a plurality of communication processing units, each of the communication processing units is provided with comparison means for comparing the received signal and the transmitted signal, and one of the communication processing units is placed in the operational system. A selection means is provided for selecting a signal as a standby system, and the signal processing section, which is set as an active system, receives a received signal from the outside, performs predetermined processing, and sends it to the outside as a transmission signal. The processing unit receives a received signal from the outside or an output signal from the active signal processing unit as a received signal, outputs this received signal as a transmitted signal without processing, and outputs the received signal as a transmitted signal to the standby signal processing unit. and the transmitted signal are compared by the comparing means, and if both are the same signal, the multiplexing station self-diagnoses that it is normal.
JP63181103A 1988-07-20 1988-07-20 Multiplex station Pending JPH0230252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63181103A JPH0230252A (en) 1988-07-20 1988-07-20 Multiplex station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63181103A JPH0230252A (en) 1988-07-20 1988-07-20 Multiplex station

Publications (1)

Publication Number Publication Date
JPH0230252A true JPH0230252A (en) 1990-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP63181103A Pending JPH0230252A (en) 1988-07-20 1988-07-20 Multiplex station

Country Status (1)

Country Link
JP (1) JPH0230252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03250947A (en) * 1990-02-28 1991-11-08 Mitsubishi Electric Corp Multiplex station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03250947A (en) * 1990-02-28 1991-11-08 Mitsubishi Electric Corp Multiplex station

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