JPS5816769B2 - Backup transmission system monitoring method and device for implementing the same - Google Patents

Backup transmission system monitoring method and device for implementing the same

Info

Publication number
JPS5816769B2
JPS5816769B2 JP52105917A JP10591777A JPS5816769B2 JP S5816769 B2 JPS5816769 B2 JP S5816769B2 JP 52105917 A JP52105917 A JP 52105917A JP 10591777 A JP10591777 A JP 10591777A JP S5816769 B2 JPS5816769 B2 JP S5816769B2
Authority
JP
Japan
Prior art keywords
station
unmanned
terminal
transmission systems
backup
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.)
Expired
Application number
JP52105917A
Other languages
Japanese (ja)
Other versions
JPS5439515A (en
Inventor
橋田昌幸
高市清香
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP52105917A priority Critical patent/JPS5816769B2/en
Publication of JPS5439515A publication Critical patent/JPS5439515A/en
Publication of JPS5816769B2 publication Critical patent/JPS5816769B2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/22Arrangements for supervision, monitoring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Description

【発明の詳細な説明】 本発明は信号伝送システムの障害を監視する方法、及び
、その実施に直接使用する装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for monitoring faults in a signal transmission system and to an apparatus directly used for its implementation.

一般に公衆通信等における伝送網は、縦続配置した中継
所間、あるいは制御局と複数の従属無人局間等に、それ
ぞれ伝送システム複数を形成し、そのうち、ひとつを予
備の伝送システムに定めて信号の伝送を行なっている。
In general, transmission networks for public communications, etc., form multiple transmission systems between cascaded relay stations, or between a control station and multiple subordinate unmanned stations, and one of these is designated as a standby transmission system to transmit signals. Transmission is in progress.

ところで、このような伝送網の障害は、伝送路の障害と
、その両端に設ける送受信装置(以下、端局装置、また
は端局という)の障害とに分けられ、無線通信などでは
伝送路障害はきわめて高い周波数帯を用いなければ殆ん
ど生ぜず、一般には端局装置の障害のみである。
By the way, failures in such transmission networks can be divided into failures in the transmission path and failures in the transmitter/receiver equipment installed at both ends (hereinafter referred to as terminal equipment or terminal stations).In wireless communications, etc., transmission path failures are This rarely occurs unless extremely high frequency bands are used, and is generally only a failure of the terminal equipment.

一方、有線通信では端局装置の障害は勿論、伝送路中に
多数の中継器などを設けるので伝送路障害も可なり起る
On the other hand, in wired communication, not only failures occur in the terminal equipment, but also a large number of transmission path failures occur because a large number of repeaters are installed in the transmission path.

本発明は有線通信における上記のような障害、とくに、
予備伝送システムの伝送路の障害監視を主目的としてな
されたものである。
The present invention solves the above-mentioned problems in wired communication, particularly,
The main purpose of this was to monitor failures in the transmission line of the backup transmission system.

以下、発明の理解を助けるためPCM−24方式(電電
公社仕様方式)を例にとり、その保守の現状を概略する
In order to facilitate understanding of the invention, the current status of its maintenance will be outlined below, taking the PCM-24 system (a system specified by the Telephone and Telecommunications Public Corporation) as an example.

第1図aはPCM−24方式伝送網の一形態の概念図で
、Mは制御局であり、これには保守員が常駐して複数の
地に散在する無人局ABC・・・・・・と伝送路abc
を介して通信系を形成している。
Figure 1a is a conceptual diagram of one form of a PCM-24 transmission network, where M is a control station, where maintenance personnel are permanently stationed and unmanned stations ABC are scattered in multiple locations. and transmission line abc
A communication system is formed through this.

同図すは、前回aの制御局Mと無人局ABC・・・・・
・間の伝送路及びその端局装置の関係を示したもので、
説明上無人局はA局により表示している。
In the same figure, control station M and unmanned station ABC from previous time a...
・It shows the relationship between the transmission path and its terminal equipment,
For the sake of explanation, the unmanned station is indicated by station A.

図で1A 2A 3A・・・・・・は制御局Mの無人局
Aに対する端局装置、1λ、2A′、3A′・・・・・
・は無人局Aの端局装置である。
In the figure, 1A, 2A, 3A... are terminal devices of control station M for unmanned station A, 1λ, 2A', 3A'...
・ is the terminal device of unmanned station A.

いま、1A31A/2A−+2A′・・・・・・の信号
伝送系を、それらの各伝送路1a、2a、3a・・・・
・・を含めてシステム1A、シスラム2A1システム3
A・・・・・・(記号的ニ5ysIA 、5ys2A
、5ys3Aと記す)と呼べば保守上特定のシステム、
たとえば5ysIA が予備として定められており、同
様に無人局BC等においてもひとつのシステム、たとえ
ば5ysl B 、 5ysI C・・・・・・が予備
に定められている。
Now, the signal transmission system of 1A31A/2A-+2A'... is connected to each transmission line 1a, 2a, 3a...
System 1A, Sysram 2A1 System 3 including...
A... (Symbolic 25ysIA, 5ys2A
, 5ys3A) is a specific system for maintenance purposes.
For example, 5ysIA is determined as a reserve, and similarly, one system, such as 5ysl B, 5ysI C, etc., is determined as a reserve in unmanned station BC.

ところで、通信障害はIA 2A・・・・・・あるい
は1A′、2A′・・・・・・等の端局自身の障害と、
伝送路Ia、2a・・・・・・等の障害に分けられるが
、たとえば5ys2A が障害になってもそれが伝送
路2aの故障が原因と判れば、5ys2A 全体を予
備の5yslA に切換えることなく、故障の伝送路
2aのみを予備システムの伝送路1aに切換えることに
よっても障害の回復ができ、したがって保守の現場とし
てその手段が多く講じられている。
By the way, communication failures are caused by failures in the terminal stations themselves, such as IA 2A... or 1A', 2A'...
Failures can be divided into transmission lines Ia, 2a, etc., but for example, even if 5ys2A has a failure, if it is determined that the cause is a failure in transmission line 2a, it can be done without switching the entire 5ys2A to the spare 5yslA. Recovery from a fault can also be achieved by switching only the faulty transmission line 2a to the backup system transmission line 1a, and therefore this method is often taken at maintenance sites.

ところで、そのようにして障害を回復させたとき、正常
に動作する端局1A 1A′は遊休装置として残される
ので、この残された端局は装置全体で、あるいは挿し換
え可能なパネル部分ごとに他のシステムの予備端局とし
て、または予備パネルとしてその後に発生する障害に備
えられる。
By the way, when the fault is recovered in this way, the normally operating terminal stations 1A and 1A' are left as idle devices, so these remaining terminal stations can be used for the entire device or for each replaceable panel section. It can be used as a spare terminal station for other systems or as a spare panel in case of failures that may occur later.

なお、上記とは順序が逆に、さきに予備システムの端局
1Aあるいは1A′を障害回復に使用し、残った伝送路
1aを予備伝送路としてその後の障害に備えることもあ
り、実際にはその場合が多い。
In addition, in the reverse order of the above, the terminal station 1A or 1A' of the backup system may be used for failure recovery first, and the remaining transmission line 1a may be used as a backup transmission line in preparation for a subsequent failure. This is often the case.

いずれにしても、そのように予備システムの端局を他の
現用端局の故障回復に使用した場合、予備システムの伝
送路が遊休することになり、これは伝送路の予備として
利用できる。
In any case, when the terminal station of the backup system is used for failure recovery of another working terminal station, the transmission line of the backup system becomes idle, which can be used as a backup transmission line.

しかし、その伝送路の端局は既に他に使用されていたり
、あるいはパネル部分的に正常動作しないので通常発出
する障害警報が発せられない。
However, because the end station of the transmission line is already being used by someone else, or because a portion of the panel is not operating normally, the failure alarm that would normally be issued is not issued.

つまり、伝送路が正常かどうか監視することができない
In other words, it is not possible to monitor whether the transmission path is normal.

このような無監視状態は制御局Mからみて上記説明の無
人局Aに対する監視だけでなく、BC等すべての無人局
に対しても同様であるから、制御局Mの保守員にとって
、現用している伝送路の予備とする伝送路が予備の役目
をするかどうかきわめて気になるところであり、それを
一掃する監視方法の出現は大きく期待されているところ
である。
From the control station M's point of view, such an unmonitored state is not only for monitoring the unmanned station A described above, but also for all unmanned stations such as BC, so it is important for the maintenance personnel of the control station M to monitor the unmanned station A. There is great concern as to whether or not the backup transmission line will serve as a backup, and there are great expectations for the emergence of a monitoring method that can wipe it out.

この発明は上述に鑑み、制御局が複数の相手無人局を有
し、その各無人局に対し各予備システムを有するとき、
予備システムの端局を有効に利用し、かつ、無人局側端
局を含め伝送路の監視を経済的に行なうことを可能にし
た監視方法及びその実施に使用する装置を提供するもの
である。
In view of the above, when a control station has a plurality of partner unmanned stations and has respective backup systems for each unmanned station,
The purpose of the present invention is to provide a monitoring method that makes it possible to effectively utilize the terminal stations of a standby system and to economically monitor transmission paths including the unmanned terminal stations, and a device used for carrying out the monitoring method.

以下、本発明の一実施例により図面を用いて詳細に説明
する。
Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

第2図は本発明の概略説明図で、Swは信号切換器を示
し、その他の符号は前回までに準する。
FIG. 2 is a schematic explanatory diagram of the present invention, in which Sw indicates a signal switch and other symbols are the same as in the previous example.

本発明の方法は同図から判るとおり各無人局の予備シス
テム5yslA 、5ysI B 、5ysl C−・
・等の制御局側端局IA、IB、1C・・・・・・等の
うち、任意なひとつの端局、図では1Aを共通の予備端
局として選び、これを信号切換器Swにより予備システ
ムの伝送路1a、1b、lc・・・・・・に切換接続す
るようにしたものであり、とくに、この場合無人局側の
端局においては、その送受信端をリンク接続して、送ら
れてくる信号を制御局M側の端局1Aに折り返すように
なされている。
As can be seen from the figure, the method of the present invention uses the backup systems 5yslA, 5ysIB, 5yslC-.
Among the control station side terminal stations IA, IB, 1C, etc., any one terminal, 1A in the figure, is selected as a common backup terminal, and this is set as a backup by the signal switcher Sw. It is designed to be switched and connected to transmission lines 1a, 1b, lc, etc. of the system, and in particular, in this case, at the terminal station on the unmanned station side, the transmitting and receiving ends are linked and the transmission is transmitted. The incoming signal is looped back to the terminal station 1A on the control station M side.

このような構成にしたので信号切換器Swにより、端局
1Aにおいて発生させた監視信号は順次各無人局に、そ
れらの伝送路1a 1b 1c等を経て送出され、
かつ、それは折り返されて制御局端局1Aにより受信さ
れることになる。
With this configuration, the monitoring signal generated at the terminal station 1A is sequentially sent to each unmanned station via the transmission lines 1a, 1b, 1c, etc. by the signal switcher Sw.
Moreover, it is looped back and received by the control station terminal station 1A.

つまり、時分割的に制御局Mは各無人局と回線を構成す
ることができ、端局1Aにおける監視信号の受信状態に
より伝送路、あるいは無人局側端局の機能の異状を知る
ことができることになり、異状の場合端局1Aは一般の
方法で警報を発することになる。
In other words, the control station M can configure a line with each unmanned station in a time-sharing manner, and can learn of abnormalities in the transmission path or the function of the unmanned station side terminal station based on the reception status of the monitoring signal at the terminal station 1A. If there is an abnormality, the terminal station 1A will issue an alarm using a general method.

本発明方法は、このように制御局のひとつの端局を用い
て各無人局の状態を知ることができるので、上記、ひと
つの端局以外の予備システムに用いている端局は前述の
ように予備としての装置またはパネルとして使用でき障
害対策にきわめて有利であり、伝送路の監視も十分性な
えることになる、と同時に、保守者に予備伝送路を監視
している安心感を与え、精神的負担を大幅に軽減するこ
とができる。
In the method of the present invention, the status of each unmanned station can be known using one terminal station among the control stations, so the terminal stations used for the backup system other than the one terminal station mentioned above are as described above. It can be used as a standby device or panel, which is extremely advantageous for failure countermeasures, and makes it possible to monitor the transmission line adequately.At the same time, it gives maintenance personnel a sense of security that they are monitoring the standby transmission line, and it improves their mental health. This can significantly reduce the burden on people.

第3図は上記方法の実施に直接使用する装置の一実施例
の構成を示す図で、特に説明しない符号は前回までと同
じものを指しており、点線枠■は走査回路部、■はカウ
ンタ部である。
FIG. 3 is a diagram showing the configuration of an embodiment of a device directly used to carry out the above method. Reference symbols not particularly explained refer to the same parts as in the previous time, and the dotted box ■ indicates the scanning circuit section, and ■ indicates the counter. Department.

カウンタ部■は商用交流電源Eを半波整流して波形整形
したものを基本パルスとして、これを10進カウンタに
の3段接続により分周し、20秒間隔(50Hz電源の
とき)のパルスを得、これを計数停止のために一方の入
力端子に常時電圧を加えているナンド回路N1 の他方
の端子に加えた後、ナンド回路N2 により反転させた
出力を2進カウンタVにより2進化計数した後、10進
デコーダDにより200秒周期の並列ドライブパルスを
各10進出力端子に得るようにしである。
The counter section (■) uses a half-wave rectified and waveform-shaped commercial AC power supply E as a basic pulse, divides the frequency by connecting a 3-stage decimal counter, and generates pulses at 20 second intervals (when using a 50Hz power supply). After applying this to the other terminal of the NAND circuit N1, which constantly applies a voltage to one input terminal to stop counting, the output inverted by the NAND circuit N2 was binarized and counted by a binary counter V. After that, a decimal decoder D provides parallel drive pulses with a period of 200 seconds to each decimal output terminal.

その10進出力のひとつ、たとえばポジョン0の出力は
ナンド回路N3 により反転されてトランジスタTr1
を駆動し、走査回路■の端局1Aとひとつの無人局との
送受信を制御するダイオードゲート回路のダイオードd
1〜d4の負端子に地気が与えられる。
One of the decimal outputs, for example, the output of position 0, is inverted by the NAND circuit N3, and is inverted by the transistor Tr1.
The diode d of the diode gate circuit drives and controls the transmission and reception between the terminal station 1A of the scanning circuit ■ and one unmanned station.
Earth air is applied to the negative terminals of 1 to d4.

しかして、それらダイオードd1〜d4は、あらかじめ
その正端子に電源(+15V)の正電圧端子が接続され
ており、上記地気の印加により初めて導通し、端局1A
の発した監視信号は端局I A’から折り返され、再び
端局1Aにより受信される。
These diodes d1 to d4 have their positive terminals connected in advance to the positive voltage terminal of the power supply (+15V), and conduct for the first time when the above-mentioned earth air is applied.
The supervisory signal issued by is returned from the terminal station IA' and received again by the terminal station 1A.

全く同様に他の無人局1B′ 1び・・・・・・と端局
1Aとの間でも監視信号の送受が、10進デコーダDの
出力端子に順次あられれる出力により循環して行なわれ
る。
In exactly the same way, the transmission and reception of supervisory signals between the other unmanned stations 1B', 1, .

したがって、端局1Aの監視信号は順次すべての無人局
端局により折り返されることになるが、もし、伝送路あ
るいは無人局側の端局1A′1B′・・・・・・等に故
障があれば当然折り返された監視信号は端局1Aにおい
て検知されな(・ことは当然である。
Therefore, the monitoring signal from the terminal station 1A is sequentially returned by all unmanned terminal stations, but if there is a failure in the transmission path or in the terminal stations 1A'1B', etc. on the unmanned station side, Of course, the returned monitoring signal is not detected at the terminal station 1A.

つまり、その時障害と判断される。ところで第3図で■
は警報回路である。
In other words, it is determined to be a disability at that time. By the way, in Figure 3 ■
is an alarm circuit.

この回路は端局1Aが障害等で受信入力のないときに送
出する地気を、地気端子Teか必げて警報を発したり、
その警報を停止させたり、あるいは走査回路の走査を停
止させ、または走査中の端局を発光ダイオードLEDで
表示したりなどをする回路である。
This circuit always issues an alarm when the terminal station 1A sends out the ground air when there is no reception input due to a fault, etc.
This is a circuit that stops the alarm, stops the scanning of the scanning circuit, or displays the terminal station being scanned using a light emitting diode LED.

上記、走査回路の停止はカウンタ回路中のナンド回路N
1 の一方の入力端子に与える電圧入力をスイッチSW
dによりオフにして行なう。
Above, the stop of the scanning circuit is the NAND circuit N in the counter circuit.
1. The voltage input to one input terminal of switch SW
Turn it off with d.

その他の回路は通常的な構成を組合せたものであり、煩
雑を避けて詳細な説明を省略する。
Other circuits are a combination of common configurations, and detailed explanations will be omitted to avoid complexity.

以上詳細に説明してわかるとおり、本発明第1番目の方
法は予備システムの監視、とくに保守者にとってきわめ
て精神的な負担となる伝送路の監視を経済的に行なうこ
とができ、しかもその監視は制御局においては端局ひど
つで足りるからきわめて経済的で、在来の局において本
発明方法を実施すれば、余分の端局は、さらに他の予備
装置として利用でき、障害救済に太いに役立つ特長があ
る。
As can be seen from the detailed explanation above, the first method of the present invention can economically monitor the backup system, especially the transmission line, which is extremely mentally burdensome for maintenance personnel. In a control station, only one terminal station is required, so it is extremely economical, and if the method of the present invention is implemented in a conventional station, the extra terminal station can be used as another backup device, which is very useful for troubleshooting. It has its features.

また、本発明第2番目の装置は、上記第1番目の発明の
実施に必要な監視信号を無接点で各無人局にロータリス
イッチ式に送出でき、回路上LSI等用いれば簡単に構
成できるから実施して太いに役立つところがある。
Furthermore, the second device of the present invention can send the monitoring signal necessary for implementing the first invention to each unmanned station in a rotary switch manner without contact, and can be easily configured by using LSI etc. on the circuit. There are some things that are very useful to implement.

以上のとおり本発明は、多くの効果を有する特長があり
、公衆通信の伝送に用いて益するところ大である。
As described above, the present invention has many advantages, and is of great benefit when used in the transmission of public communications.

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

第1図は本発明が実施される通信網を説明する図、第2
図は本発明の特定発明の詳細な説明図、第3図は本発明
の第2の発明の一実施例を説明する図である。 M・・・・・・制御局、ABCD・・・・・・無人局、
abcd・・・・・・伝送路、1A 2A 3A・
・・・・・(無人局Aに対する)端局、1A′、2A′
、3A′・・・・・・(無人局における)端局、5ys
1A ・・・・・・(端局1A、1A/を用いた)伝
送システム、(5ysl B 、 5ysl C等も同
様)、SW・・・・・・信号切換器。
FIG. 1 is a diagram explaining a communication network in which the present invention is implemented, and FIG.
The figure is a detailed explanatory diagram of a specific invention of the present invention, and FIG. 3 is a diagram illustrating an embodiment of the second invention of the present invention. M...Control station, ABCD...Unmanned station,
abcd...Transmission line, 1A 2A 3A・
...Terminal stations (for unmanned station A), 1A', 2A'
, 3A'... terminal station (in an unmanned station), 5ys
1A...Transmission system (using terminal stations 1A, 1A/), (same for 5ysl B, 5ysl C, etc.), SW...signal switch.

Claims (1)

【特許請求の範囲】 1 散在させた多数の無人局のおのおのが、ひとつの制
御局との間を複数の伝送システムにより接続され、該複
数の伝送システムのうちのひとつを予備伝送システムと
して用いて通信を行う伝送網において、制御局は、各無
人局向けの予備伝送システムのうち任意のひとつに使用
する端局を用いて、監視信号を、すべての予備伝送シス
テムに順次循環的に送出し、各無人局に上記送られてく
る上記監視信号を無人局側端局の送受信端をリンク接続
することにより折返し、制御局は折返された監視信号を
検出することによりすべての予備伝送システムの状態を
知るようにしたことを特徴とする予備伝送システム監視
方法。 2 少なくとも監視する予備伝送システム数と同数の並
設した出力端子に、パルス列を計数することにより循環
的に出力をとりだし、この出力端子にあられれる計数出
力を駆動源として、複数並設したダイオードゲート回路
を順次循環的に導通させることにより、ダイオードゲー
ト回路に与えられる監視信号を循環的に複数の無人局の
各々に送出するようにしたことを特徴とする監視信号送
出装置。
[Claims] 1. Each of a large number of scattered unmanned stations is connected to one control station by a plurality of transmission systems, and one of the plurality of transmission systems is used as a backup transmission system. In a transmission network that performs communication, a control station uses a terminal station used for any one of the backup transmission systems for each unmanned station to sequentially and cyclically send a monitoring signal to all backup transmission systems, The monitoring signal sent to each unmanned station is looped back by linking the transmitting and receiving ends of the terminal station on the unmanned station side, and the control station detects the looped back monitoring signal to check the status of all backup transmission systems. A backup transmission system monitoring method characterized by: 2 At least the same number of output terminals as the number of standby transmission systems to be monitored are cyclically outputted by counting pulse trains, and the counting outputs applied to these output terminals are used as a driving source to connect multiple diode gates arranged in parallel. A supervisory signal transmitting device characterized in that a supervisory signal given to a diode gate circuit is cyclically transmitted to each of a plurality of unmanned stations by sequentially and cyclically conducting the circuits.
JP52105917A 1977-09-05 1977-09-05 Backup transmission system monitoring method and device for implementing the same Expired JPS5816769B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52105917A JPS5816769B2 (en) 1977-09-05 1977-09-05 Backup transmission system monitoring method and device for implementing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52105917A JPS5816769B2 (en) 1977-09-05 1977-09-05 Backup transmission system monitoring method and device for implementing the same

Publications (2)

Publication Number Publication Date
JPS5439515A JPS5439515A (en) 1979-03-27
JPS5816769B2 true JPS5816769B2 (en) 1983-04-02

Family

ID=14420206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52105917A Expired JPS5816769B2 (en) 1977-09-05 1977-09-05 Backup transmission system monitoring method and device for implementing the same

Country Status (1)

Country Link
JP (1) JPS5816769B2 (en)

Also Published As

Publication number Publication date
JPS5439515A (en) 1979-03-27

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