JP2561548B2 - Multiplexing station - Google Patents

Multiplexing station

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Publication number
JP2561548B2
JP2561548B2 JP2048152A JP4815290A JP2561548B2 JP 2561548 B2 JP2561548 B2 JP 2561548B2 JP 2048152 A JP2048152 A JP 2048152A JP 4815290 A JP4815290 A JP 4815290A JP 2561548 B2 JP2561548 B2 JP 2561548B2
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Japan
Prior art keywords
processing unit
communication processing
signal
output
outputs
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JP2048152A
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JPH03250947A (en
Inventor
良治 徳永
信吾 山根
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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  • Maintenance And Management Of Digital Transmission (AREA)

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。
TECHNICAL FIELD The present invention relates to a multiplexing station for self-diagnosing a standby station.

[従来の技術] 第2図は例えば特願昭63−181103号に示された従来の
多重化ステーションを示すブロック図であり、(13)は
受信部、(14)は送信部、(1a)(1b)はバイパススイ
ッチ、(20a)(20b)は通信処理部、(4a)(4b)は各
々通信処理部(20a)(20b)への受信信号、(5a)(5
b)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(8a)(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ANDゲートであり、その出力
は各々自己診断結果の判定出力(9a)(9b)となる。
[Prior Art] FIG. 2 is a block diagram showing a conventional multiplexing station disclosed in, for example, Japanese Patent Application No. 63-181103, in which (13) is a receiving section, (14) is a transmitting section, and (1a). (1b) is a bypass switch, (20a) and (20b) are communication processing units, (4a) and (4b) are received signals to the communication processing units (20a) and (20b), and (5a) and (5a).
b) are transmission signals from the communication processing units (20a) and (20b),
(6a) and (6b) are processing units for comparing the received signals (4a) and (4b) with the transmitted signals (5a) and (5b), and (30a) and (30b) are respectively processed from the communication processing units (20a) and (20b). Bypass command output, each bypass switch (1a) (1b) and inverter (7a)
It is connected to (7b). Further, (8a) and (8b) are outputs from the comparison processing units (6a) and (6b) and the bypass command (30a), respectively.
It is an AND gate for satisfying the condition of (30b), and its output becomes the judgment output (9a) (9b) of the self-diagnosis result.

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

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通りの接続状
態に切替られる。
With respect to the operation of the bypass switches (1a) and (1b), two connection states are switched by the control of the bypass commands (30a) and (30b).

バイパス指令が“1"の時はバイパススイッチ(1a)で
図示したような接続となり、“0"の時はバイパススイッ
チ(1b)で図示したような接続となる。
When the bypass command is "1", the connection is as shown by the bypass switch (1a), and when it is "0", the connection is as shown by the bypass switch (1b).

受信部(13)にて光信号から電気信号に変換された受
信信号(4a)が、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“0"であるため、送信部(14)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。
The reception signal (4a) converted from the optical signal to the electric signal by the reception unit (13) is input to the communication processing unit (20a), and the transmission signal (5a) from the communication processing unit (20a) is bypass switch ( It is input to the communication processing unit (20b) via 1a). Since the bypass signal (30b) of the transmission signal (5b) from the communication processing unit (20b) is "0", the transmission signal (5a) is passed to the transmission unit (14), converted into an optical signal, and transmitted. To be done.

以上の説明は、バイパス指令(30a)が“1",(30b)
が“0"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(13)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(2
0b)からの送信信号が送信部(14)へ入力されることに
なる。
In the above explanation, the bypass command (30a) is "1", (30b)
Shows "0" when the bypass command (30a) is "0",
When (30b) is "1", the received signal from the receiving section (13) is input to the communication processing section (20b), and the communication processing section (2
The transmission signal from 0b) is input to the transmission section (14).

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

バイパス指令(30a)が“1"の時は、通信処理部(20
a)は運転系であり、自系のデータも送信信号(5a)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 (20
a) is the driving system, and since the data of its own system is also added to the transmission signal (5a), the reception signal (4a) and the transmission signal (5a) do not match.

バイパス指令(30b)が“0"の時には、通信処理部(2
0a)は待機系であり、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 command (30b) is "0", the communication processing unit (2
0a) is a standby system, and the communication processing unit (20b) outputs the received signal (4b) as it is as a transmission 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 reception signal (4b) and the transmission signal (5b) for the communication processing unit (20b) of the standby system 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。
Since the received signal (4b) passes through the communication processing unit (20b), a time delay occurs, so the comparison processing unit (6b) adds a process for correcting this time delay.

比較処理部(6b)は、受信信号(4b)と送信信号(5
b)の比較処理を行った後に、その結果をANDゲート(8
b)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“0"であり、インバータ(7b)にて
反転した信号によりゲートが開く(有意となる)方向と
なる。
The comparison processing unit (6b) receives the received signal (4b) and the transmitted signal (5b).
After performing the comparison process of b), the result is AND gate (8
Pass to b). In the AND gate (8b), the bypass command (30b) is "0" in the standby system, and the gate is opened (significant) by the signal inverted by the inverter (7b).

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(5
b)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 section (6b), and the reception signal (4b) and the transmission signal (5b)
If b) matches, it means an insignificant state, and if they do not match (an abnormality occurs in the communication processing unit of the standby system), it means a significant state.

一方、運転系の比較処理部(6a)は、受信信号(4b)
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) in the driving system receives the received signal (4b).
Since it is normal that the transmission signal (5a) and the transmission signal (5a) do not match and the processing result of the comparison processing unit (6a) is output as the judgment output (9a) as it is, there is a problem with the inverter (7a).
The output from the AND gate (8a) is suppressed to the intent side.

比較処理部(6a)(6b),インバータ(7a)(7b),A
NDゲート(8a)(8b),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",バイパス指
令(30b)が“0"の場合を示したが、バイパス指令(30
a)が“0",(30b)が“1"の場合は、運転系と待機系の
関係が逆になるだけである。
Comparison processing unit (6a) (6b), inverter (7a) (7b), A
The above explanation regarding the ND gates (8a) (8b) and the judgment outputs (9a) (9b) shows the case where the bypass command (30a) is "1" and the bypass command (30b) is "0". Directive (30
When a) is “0” and (30b) is “1”, the relationship between the operating system and the standby system is simply reversed.

従って、比較処理部(6b),インバータ(7b),ANDゲ
ート(8b)は運転系の動きをし、比較処理部(6a),イ
ンバータ(7a),AND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 unit (6b), the inverter (7b), and the AND gate (8b) move as an operating system, and the comparison processing unit (6a), the inverter (7a), and the AND gate (8a) move as a standby system. It goes without saying that I will do it.

[発明が解決しようとする課題] 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、外部からの受信信号に再生中継ができないよ
うな波形割れとか部号歪が生じた場合には、比較処理部
は判定出力を有意にするなどの誤判定を行う場合があ
り、待機系の自己診断を確実に行なうことができないと
いう課題があった。
[Problems to be Solved by the Invention] Since the conventional multiplexing station is configured as described above, when a waveform crack or a partial distortion which cannot be reproduced and relayed in the received signal from the outside occurs, The comparison processing unit may make an erroneous determination such as making the determination output significant, which poses a problem that the self-diagnosis of the standby system cannot be reliably performed.

この発明は上記のような課題を解決するためになされ
たもので、外部からの受信信号波形に影響されないで比
較処理ができ、待機系の自己診断を確実にし、システム
の信頼性を向上させることができる多重化ステーション
を得ることを目的とする。
The present invention has been made to solve the above problems, and it is possible to perform comparison processing without being affected by the waveform of a received signal from the outside, to ensure self-diagnosis of a standby system, and to improve system reliability. The purpose is to obtain a multiplexing station capable of

[課題を解決するための手段] この発明に係る多重化ステーションは、受信部と送信
部との間に複数の通信処理部が、受信信号を処理して送
信信号を出力する運転系と受信信号を無処理で再生中継
して出力する待機系とに多重化して設けられた多重化ス
テーションであって、各通信処理部が、自己の状態を運
転系にするか待機系にするかを切り替えるバイパススイ
ッチと、通信処理部が自己診断に用いる信号を出力する
パターンジェネレータと、受信信号とパターンジェネレ
ータ出力信号とが入力され、運転系通信処理部へは受信
信号を出力し、待機系通信処理部へはパターンジェネレ
ータ出力信号を出力するセレクタと、セレクタ出力と通
信処理部出力とが一致するか否かを比較する比較処理部
とを備えるものである。
[Means for Solving the Problems] In a multiplexing station according to the present invention, a plurality of communication processing units between a receiving unit and a transmitting unit process an incoming signal and output an outgoing signal and an operating system. Is a multiplexing station that is provided by multiplexing with a standby system that regenerates and outputs the data without processing, in which each communication processing unit switches its own state between an operating system and a standby system. A switch, a pattern generator that outputs a signal used by the communication processing unit for self-diagnosis, a reception signal, and a pattern generator output signal are input, and the reception signal is output to the operation communication processing unit and the standby communication processing unit is output. Includes a selector that outputs a pattern generator output signal, and a comparison processing unit that compares whether the selector output and the communication processing unit output match.

[作用] この発明に係る多重化ステーションでは、各通信処理
部にパターンジェネレータとセレクタとを設けている。
パターンジェネレータは自己が付属する通信処理部の診
断に用いる信号を出力する。セレクタには受信信号とパ
ターンジェネレータ出力信号とが入力され、自己が付属
する通信処理部が運転系のときには受信信号を出力し、
待機系のときにはパターンジェネレータ出力信号を出力
する。比較処理部はセレクタ出力と通信処理部出力とを
入力し、両者が一致するか否かを比較する。通信処理部
が運転系の場合、一致のときは異常と判定され、不一致
のときは正常と判定される。通信処理部が待機系の場合
はこれとは逆に、一致のときは正常と判定され、不一致
のときは異常と判定される。というのは、運転系の通信
処理部はセレクタ出力信号を処理して送信信号を出力す
るのに対して、待機系の通信処理部はセレクタ出力信号
を無処理で再生中継して出力するだけだからである。
[Operation] In the multiplexing station according to the present invention, each communication processing unit is provided with a pattern generator and a selector.
The pattern generator outputs a signal used for diagnosing the communication processing unit attached to itself. The received signal and the pattern generator output signal are input to the selector, and the received signal is output when the communication processing unit attached to itself is the operating system,
In the standby system, the pattern generator output signal is output. The comparison processing unit inputs the selector output and the communication processing unit output, and compares whether the two match. In the case where the communication processing unit is an operating system, it is determined to be abnormal if they match, and normal if they do not match. On the contrary, when the communication processing unit is a standby system, it is determined to be normal when they match and abnormal when they do not match. Because the communication processing unit of the driving system processes the selector output signal and outputs the transmission signal, the communication processing unit of the standby system only regenerates and relays the selector output signal without processing and outputs it. Is.

[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。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

第1図において、(13)は受信部、(14)は送信部、
(1a)(1b)はバイパススイッチ、(20a)(20b)は通
信処理部、(4a)(4b)は各々通信処理部(20a)(20
b)への受信信号、(31a)(31b)はセレクタ、(32a)
(32b)はパターンジェネレータ、(5a)(5b)は各々
通信処理部(20a)(20b)からの送信信号、(6a)(6
b)は各々受信信号(4a)(4b)と送信信号(5a)(5
b)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であり各々バイパス
スイッチ(1a)(b)とインバータ(7a)(7b)及びセ
レクタ(31a)(31b)に接続されている。また(8a)
(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)との条件をとるためのANDゲー
トであり、その出力は各々自己診断結果の判定出力(9
a)(9b)となる。
In FIG. 1, (13) is a receiver, (14) is a transmitter,
(1a) and (1b) are bypass switches, (20a) and (20b) are communication processing units, and (4a) and (4b) are communication processing units (20a) and (20b).
Received signal to b), (31a) (31b) is selector, (32a)
(32b) is a pattern generator, (5a) and (5b) are transmission signals from the communication processing units (20a) and (20b), and (6a) and (6b).
b) is the received signal (4a) (4b) and the transmitted signal (5a) (5
Comparing processing unit with (b), (30a) and (30b) are bypass commands from the communication processing units (20a) and (20b), respectively, and bypass switches (1a) and (b), inverters (7a) and (7b) and selectors (31a) and (31b) are connected. Also (8a)
(8b) is an AND gate for setting the conditions of the outputs from the comparison processing units (6a) and (6b) and the bypass commands (30a) and (30b), and the outputs thereof are the judgment output (9) of the self-diagnosis result.
a) (9b).

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

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通りの接続状
態に切替られる。バイパス指令が“1"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。
With respect to the operation of the bypass switches (1a) and (1b), two connection states are switched by the control of the bypass commands (30a) and (30b). When the bypass command is "1", the connection is as shown in (1a), and when it is "0", the connection is as shown in (1b).

セレクタ(31a)(31b)は各々バイパス指令(1a)
(1b)にて制御され、バイパス指令が“1"の時はB入力
をY出力に通過させてA入力を抑止し、バイパス指令が
“0"の時はA入力をY出力に通過させてB入力を抑止す
る。
Selector (31a) (31b) is bypass command (1a) respectively
Controlled by (1b), when the bypass command is "1", the B input is passed to the Y output and the A input is suppressed, and when the bypass command is "0", the A input is passed to the Y output. B Input is suppressed.

従って、受信部(13)にて光信号から電気信号に変換
された外部からの受信信号はセレクタ(31a)を通過し
て受信信号(4a)となって通信処理部(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)を経由してセレクタ(31b)とバイパ
ススイッチ(1b)へ入力される。
Therefore, the reception signal from the outside, which has been converted from the optical signal to the electric signal in the reception unit (13), passes through the selector (31a) to become the reception signal (4a) and is input to the communication processing unit (20a). The transmission signal (5a) from the communication processing unit (20a) is input to the selector (31b) and the bypass switch (1b) via the bypass switch (1a).

セレクタ(31b)はバイパス指令(30b)が“0"であ
り、パターンジェネレータ(32b)からの出力信号を通
過させ、これが通信処理部(20b)の受信信号(4b)と
なる。そして通信処理部(20b)からの送信信号(5b)
はバイパス指令(30b)が“0"であるため、送信部(1
4)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。
The bypass command (30b) of the selector (31b) is "0", and the output signal from the pattern generator (32b) is passed through, which becomes the reception signal (4b) of the communication processing unit (20b). And the transmission signal (5b) from the communication processing unit (20b)
Since the bypass command (30b) is "0", the transmitter (1
The transmission signal (5a) is passed to 4), converted into an optical signal and transmitted.

以上の説明は、バイパス指令(30a)が“1"、(30b)
が“0"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(13)から
の外部からの受信信号はバイパススイッチ(1a)とセレ
クタ(31b)経由して、受信信号(4b)となりそのまま
通信処理部(20b)へ入力され、また通信処理部(20b)
からの送信信号(5b)が送信部(14)へ渡されることに
なる。
In the above explanation, the bypass command (30a) is "1", (30b)
Shows the case of "0", but when the bypass command (30a) is "0" and (30b) is "1", the received signal from the outside from the receiving section (13) is conversely Via 1a) and selector (31b), it becomes the received signal (4b) and is input to the communication processing unit (20b) as it is, and also the communication processing unit (20b).
The transmission signal (5b) from is transmitted to the transmission unit (14).

そしてパターンジェネレータ(32a)からの出力信号
は、セレクタ(31a)を通過して受信信号(4b)とな
り、通信処理部(20a)へ入力される。
Then, the output signal from the pattern generator (32a) passes through the selector (31a) to become the reception signal (4b), which is input to the communication processing unit (20a).

一方、受信信号(4a)(4b)と送信信号(5a)(5b)
は各々比較処理部(6a)(6b)に渡される。
On the other hand, received signals (4a) (4b) and transmitted signals (5a) (5b)
Are passed to the comparison processing units (6a) and (6b), respectively.

バイパス指令(30a)が“1"の時には、通信処理部(2
0a)は運転系であり、自系のデータも送信信号(5a)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 (2
0a) is a driving system, and since the data of its own system is also added to the transmission signal (5a), the reception signal (4a) and the transmission signal (5a) do not match.

バイパス指令(30b)が“0"の時には、通信処理部(2
0b)は待機系であり、通信処理部(20b)は、受信信号
(4b)をそのままの信号形態で再生中継して送信信号
(5b)として出力する。
When the bypass command (30b) is "0", the communication processing unit (2
0b) is a standby system, and the communication processing unit (20b) regenerates and relays the received signal (4b) in the same signal form and outputs it as a 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 reception signal (4b) and the transmission signal (5b) for the communication processing unit (20b) in the standby system 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。
Since the received signal (4b) passes through the communication processing unit (20b), a time delay occurs, so the comparison processing unit (6b) adds a process for correcting this time delay.

比較処理部(6b)は、受信信号(4b)と送信信号(5
b)と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“0"であり、インバータ(7b)
にて反転した信号によりゲートが開く(有意となる)方
向となる。
The comparison processing unit (6b) receives the received signal (4b) and the transmitted signal (5b).
After performing the comparison process with b), the result is passed to the AND gate (8b). In the AND gate (8b), the bypass command (30b) is "0" in the standby system, and the inverter (7b)
The gate is opened (significant) by the signal inverted at.

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(5
b)が一致しておれば無意状態を、不一致(待機系の通
信処理で異常が発生)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 section (6b), and the reception signal (4b) and the transmission signal (5b)
If b) matches, it means an insignificant state, and if they do not match (abnormality occurs in standby communication processing), it means a significant state.

そして、運転系の比較処理部(6a)は、受信信号(4
a)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
して出力するのは問題であるため、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。
Then, the comparison processing unit (6a) of the driving system receives the received signal (4
Since it is normal when a) and the transmission signal (5a) do not match, and it is a problem to output the processing result of the comparison processing unit (6a) as the judgment output (9a) as it is, it is AND in the inverter (7a). The output from the gate (8a) is suppressed to the intent side.

比較処理部(6a)(6b)、インバータ(7a)(7b)、
ANDゲート(8a)(8b)、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"、(30b)
が“0"の場合を示したがバイパス指令(30a)が“0"、
(30b)が“1"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),
The above explanations regarding the AND gates (8a) and (8b) and the judgment outputs (9a) and (9b) have been explained with the bypass command (30a) being “1”, (30b).
Shows the case of "0", but the bypass command (30a) is "0",
When (30b) is "1", 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)、AND
ゲート(8b)は運転系の動きをし、比較処理部(6a)、
インバータ(7a)、AND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 unit (6b), the inverter (7b), the AND
The gate (8b) acts as a driving system, and the comparison processing unit (6a),
It goes without saying that the inverter (7a) and the AND gate (8a) act as a standby system.

なお、上記実施例では、2重化の例を示したが、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 addition, in the above-mentioned embodiment, the example of the doubling is shown, but the present invention can be applied to the doubling or more. That is, it can be applied to self-diagnosis in a multiplexing station.

[発明の効果] 以上のように、この発明によれば、受信部と送信部と
の間に複数の通信処理部が、受信信号を処理して送信信
号を出力する運転系と受信信号を無処理で再生中継して
出力する待機系とに多重化して設けられた多重化ステー
ションであって、各通信処理部が、自己の状態を運転系
にするか待機系にするかを切り替えるバイパススイッチ
と、通信処理部が自己診断に用いる信号を出力するパタ
ーンジェネレータと、受信信号とパターンジェネレータ
出力信号とが入力され、運転系通信処理部へは受信信号
を出力し、待機系通信処理部へはパターンジェネレータ
出力信号を出力するセレクタと、セレクタ出力と通信処
理部出力とが一致するか否かを比較する比較処理部とを
備えるように構成したので、待機系通信処理部の自己診
断に、外乱の影響を受けて波形割れや符号歪が生じやす
い受信信号を使用せずに、安定したパターンジェネレー
タ出力信号を使用しているから、待機系通信処理部の自
己診断を確実に行うことができる効果がある。
[Advantages of the Invention] As described above, according to the present invention, a plurality of communication processing units between a reception unit and a transmission unit do not operate a reception system that processes a reception signal and outputs a transmission signal. A multiplexing station that is provided by being multiplexed with a standby system that is regenerated and relayed for processing and output, and each communication processing unit has a bypass switch that switches its own state to an operating system or a standby system. A pattern generator that outputs a signal used by the communication processing unit for self-diagnosis, a reception signal and a pattern generator output signal are input, the reception signal is output to the operation communication processing unit, and the pattern is output to the standby communication processing unit. Since the selector that outputs the generator output signal and the comparison processing unit that compares whether the selector output and the communication processing unit output match or not are configured, the self-diagnosis of the standby communication processing unit can be performed. Since a stable pattern generator output signal is used without using a received signal that is susceptible to waveform cracking or code distortion due to the influence of disturbance, it is possible to reliably perform self-diagnosis of the standby communication processing unit. There is an effect that can be done.

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

第1図はこの発明の一実施例による多重化ステーション
を示すブロック図、第2図は従来の多重化ステーション
を示すブロック図である。 図において(30a)(30b)はバイパス指令、(31a)(3
1b)はセレクタ、(32a)(32b)はパターンジェネレー
タ、(4a)(4b)は受信信号、(5a)(5b)は送信信号
である。 なお、図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a block diagram showing a multiplexing station according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional multiplexing station. In the figure, (30a) and (30b) are bypass commands, and (31a) (3
1b) is a selector, (32a) and (32b) are pattern generators, (4a) and (4b) are received signals, and (5a) and (5b) are transmitted signals. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】受信部と送信部との間に複数の通信処理部
が、受信信号を処理して送信信号を出力する運転系と受
信信号を無処理で再生中継して出力する待機系とに多重
化して設けられた多重化ステーションであって、各通信
処理部が、自己の状態を運転系にするか待機系にするか
を切り替えるバイパススイッチと、通信処理部が自己診
断に用いる信号を出力するパターンジェネレータと、受
信信号とパターンジェネレータ出力信号とが入力され、
運転系通信処理部へは受信信号を出力し、待機系通信処
理部へはパターンジェネレータ出力信号を出力するセレ
クタと、セレクタ出力と通信処理部出力とが一致するか
否かを比較する比較処理部とを備えている多重化ステー
ション。
1. An operation system in which a plurality of communication processing units are provided between a receiving unit and a transmitting unit, and which processes a received signal and outputs a transmitted signal, and a standby system which regenerates and outputs the received signal without processing. In the multiplexing station provided for each of the communication processing units, a bypass switch for switching each communication processing unit between the operating system and the standby system and a signal used by the communication processing unit for self-diagnosis are provided. The pattern generator to output, the received signal and the pattern generator output signal are input,
A selector that outputs a reception signal to the driving communication processing unit and outputs a pattern generator output signal to the standby communication processing unit, and a comparison processing unit that compares whether or not the selector output and the communication processing unit output match. And a multiplexing station comprising.
JP2048152A 1990-02-28 1990-02-28 Multiplexing station Expired - Fee Related JP2561548B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2048152A JP2561548B2 (en) 1990-02-28 1990-02-28 Multiplexing station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2048152A JP2561548B2 (en) 1990-02-28 1990-02-28 Multiplexing station

Publications (2)

Publication Number Publication Date
JPH03250947A JPH03250947A (en) 1991-11-08
JP2561548B2 true JP2561548B2 (en) 1996-12-11

Family

ID=12795394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2048152A Expired - Fee Related JP2561548B2 (en) 1990-02-28 1990-02-28 Multiplexing station

Country Status (1)

Country Link
JP (1) JP2561548B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62214741A (en) * 1986-03-15 1987-09-21 Nec Corp Line supervisory system
JPH01238334A (en) * 1988-03-18 1989-09-22 Fujitsu Ltd Automatic fault detecting and switching system
JPH0230252A (en) * 1988-07-20 1990-01-31 Mitsubishi Electric Corp Multiplex station

Also Published As

Publication number Publication date
JPH03250947A (en) 1991-11-08

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