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JPS6244742B2 - - Google Patents
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JPS6244742B2 - - Google Patents

Info

Publication number
JPS6244742B2
JPS6244742B2 JP17844082A JP17844082A JPS6244742B2 JP S6244742 B2 JPS6244742 B2 JP S6244742B2 JP 17844082 A JP17844082 A JP 17844082A JP 17844082 A JP17844082 A JP 17844082A JP S6244742 B2 JPS6244742 B2 JP S6244742B2
Authority
JP
Japan
Prior art keywords
repeater
remote location
line
detecting
sent
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
JP17844082A
Other languages
Japanese (ja)
Other versions
JPS5970028A (en
Inventor
Masaru Yamaguchi
Masaharu Shimada
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
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Nippon Electric 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 Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP57178440A priority Critical patent/JPS5970028A/en
Publication of JPS5970028A publication Critical patent/JPS5970028A/en
Publication of JPS6244742B2 publication Critical patent/JPS6244742B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F27D13/002—Preheating scrap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/101—Baghouse type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Description

【発明の詳細な説明】 本発明は中継器の保守監視方式に関する。[Detailed description of the invention] The present invention relates to a repeater maintenance and monitoring system.

従来、中継系の障害位置の検定は、監視局より
中継器に固有のパルスパターンを送出し、各中継
器では、そのパターンの低周波成分を取り出し、
監視回路を使用して監視局に返送することにより
行なわれていた。上記方法では、たとえば特定の
中継器が障害の時、その中継器に固有な低周波信
号が監視局に返送されない。またその中継器に接
続されている線路が障害の時、やはりその中継器
に固有な低周波信号が監視局に返送されない。し
たがつて、従来の方法では、中継器障害、線路障
害の区別ができないという欠点があり、さらに監
視回路が必要となるという欠点もあつた。 Conventionally, to verify the location of a fault in a relay system, a monitoring station sends out a unique pulse pattern to each repeater, and each repeater extracts the low frequency components of that pattern.
This was done by using a monitoring circuit to send the data back to the monitoring station. In the above method, for example, when a particular repeater fails, the low frequency signal specific to that repeater is not sent back to the monitoring station. Furthermore, when a line connected to a repeater has a fault, the low frequency signal unique to the repeater is not sent back to the monitoring station. Therefore, the conventional method has the disadvantage that it cannot distinguish between repeater failure and line failure, and also requires a monitoring circuit.

本発明の目的は、特定コードの検出により、遠
隔地から送られてくるデータを遠隔地に返送する
試験と、遠隔地から送られてくる直流を検出し
て、中継器をバイパスした上での線路のみの試験
との組み合せにより、前記従来方法の欠点を解決
し、障害場所の識別が確実にできる中継器監視回
路を提供することにある。 The purpose of the present invention is to perform a test in which data sent from a remote location is returned to a remote location by detecting a specific code, and a test in which data sent from a remote location is detected and a repeater is bypassed. It is an object of the present invention to provide a repeater monitoring circuit which solves the drawbacks of the conventional method and can reliably identify the location of a fault by combining it with a line-only test.

本発明によれば、中継系の障害を監視するため
に各々の中継器に設けられた中継器監視回路にお
いて、遠隔地より送られてくる特定コードを検出
する手段と、該コードを検出した後前記遠隔地よ
り送られてくるデータをループ折り返しする手段
と、前記遠隔地より送られてくる直流を検出する
手段と、該直流を検出した時、中継器をバイパス
し、該中継器に設置された直流電源を次段中継器
に印加する手段とを有することを特徴とする中継
器監視回路が得られる。 According to the present invention, in a repeater monitoring circuit provided in each repeater to monitor failures in the repeater system, means for detecting a specific code sent from a remote location, and a means for detecting a specific code sent from a remote location, and means for loop-backing data sent from the remote location; means for detecting direct current sent from the remote location; There is obtained a repeater monitoring circuit characterized in that it has means for applying a DC power source to a next-stage repeater.

以下、図面を参照して本発明を詳細に説明す
る。 Hereinafter, the present invention will be explained in detail with reference to the drawings.

第１図は本発明を用いた中継系の一部の構成を
示した回路図である。図において、図面に向つて
左側が遠隔地側であり、１k〜１k+2，１′k〜１′k+
２は伝送線路、２kは遠隔地からｋ（ｋ≧１）段目
の中継器、２k+1は次段の中継器を示す。 FIG. 1 is a circuit diagram showing a partial configuration of a relay system using the present invention. In the figure, the left side when facing the drawing is the remote side, 1 k ~ 1 k+2 , 1' k ~ 1' k+
2 indicates a transmission line, 2 k indicates a k-th (k≧1) stage repeater from a remote location, and 2 k+1 indicates a next stage repeater.

最初に中継系に障害がないものとして説明す
る。通常、中継器２kと次段の中継器２k+1とは伝
送路線１k+1，１′k+1により接続されている。こ
の状態で、遠隔地より伝送線路１kを介して中継
器２kに固有なコードが送出されると、中継器２k
はそれを検出してパスＡkを設定する。そのとき
次段の中継器２k+1は中継器２kと回路的に切離さ
れる。パスＡkが設定された後遠隔地から線路１k
を介して送出されてきたデータを線路１′kを介し
て遠隔地に返送する。このように、パスＡkによ
る折り返し試験がなされた後、パスＡkの設定が
解除される。また次段の中継器２k+1も同様な機
能を持つ。 First, explanation will be given assuming that there is no failure in the relay system. Usually, the repeater 2 k and the next stage repeater 2 k+1 are connected by transmission lines 1 k+1 and 1' k+1 . In this state, when a code specific to repeater 2k is sent from a remote location via transmission line 1k , repeater 2k
detects it and sets the path A k . At that time, the next stage repeater 2 k+1 is separated from the repeater 2 k in terms of circuit. After path A k is set, track 1 k from remote location
The data sent out via line 1'k is sent back to the remote location via line 1'k. In this way, after the loopback test using path A k is performed, the setting of path A k is canceled. Further, the next stage repeater 2k +1 has a similar function.

次に、遠隔地から直流が印加されると、中継器
２kでこれを検出してパスＢk，B′kを設定する。
このとき中継器２kは伝送路線から回路的に切離
される。そして、次段の中継器２k+1に直流を印
加し、中継器２k+1でそれを検出してパスＢk+1，
B′k+1を設定し、中継器２k+1は伝送線路から回路
的に切離される。以下同様である。このようにし
て、パスB1，…，Ｂk，Ｂk+1，…，B′k+1，B′k，
…，B′1が設定されたのち、遠隔地から交流等を
中継系に入力することにより線路試験がなされ
る。 Next, when direct current is applied from a remote location, the repeater 2 k detects this and sets paths B k and B' k .
At this time, the repeater 2 k is circuit-wise disconnected from the transmission line. Then, DC is applied to the next stage repeater 2 k+1 , and it is detected by the repeater 2 k+1 and the path B k+1 ,
B′ k+1 is set, and the repeater 2 k+1 is circuit-wise separated from the transmission line. The same applies below. In this way, the paths B 1 , ..., B k , B k+1 , ..., B' k+1 , B' k ,
..., B′ 1 are set, a line test is performed by inputting AC, etc. to the relay system from a remote location.

このような機能を有する中継系において、次段
の中継器２k+1が障害の時、パスＡkによる折り返
し試験と線路試験は可能であるが、パスＡk+1に
よる折り返し試験は不可能となる。一方、伝送線
路１k+1，１′k+1が障害の場合、パスＡkによる折
り返し試験は可能であるが、線路試験とパスＡk+
１による折り返し試験は不可能となる。 In a relay system with such a function, when the next stage repeater 2 k+1 has a failure, loopback tests and line tests using path A k are possible, but loopback tests using path A k+1 are impossible. becomes. On the other hand, if the transmission lines 1 k+1 and 1' k+1 are faulty, a loopback test using path A k is possible, but line testing and path A k+
A repeat test based on 1 will not be possible.

したがつて、本発明を用いることにより、線路
試験、パスＡk、パスＡk+1の折り返し試験結果に
より、中継器障害か線路障害かの区別をつけるこ
とができる。 Therefore, by using the present invention, it is possible to distinguish between a repeater failure and a line failure based on the line test and the return test results of path A k and path A k+1 .

第２図は本発明による一実施例の構成を示した
ブロツク図である。図において、２kは中継器、
３kはリレー、Ｔ１k，Ｔ２k，Ｔ３k，Ｔ４kはトラ
ンス、SW１k，SW２k，SW３k，SW４k，SW５k
はリレー３kの接点、SW６k，SW７kはスイツチ
である。またＰk，P′k，Ｑk，Q′kは線路端、４kは
内蔵電源である。スイツチSW１k，SW２k，SW
３k，SW４k，SW５k，SW６k，SW７kは、通常
状態では、図中黒丸方向に接触している。また図
面に向つて左側が遠隔地側である。 FIG. 2 is a block diagram showing the configuration of an embodiment according to the present invention. In the figure, 2 k is a repeater,
3 k is a relay, T1 k , T2 k , T3 k , T4 k are transformers, SW1 k , SW2 k , SW3 k , SW4 k , SW5 k
is the contact of relay 3k , and SW6k and SW7k are switches. Further, P k , P' k , Q k and Q' k are line ends, and 4 k is a built-in power supply. Switch SW1 k , SW2 k , SW
3 k , SW4 k , SW5 k , SW6 k , and SW7 k are in contact in the direction of the black circles in the figure in the normal state. The left side of the drawing is the remote side.

以下、第２図を参照して動作を説明する。 The operation will be explained below with reference to FIG.

遠隔地より特定コードが送られてくると線路端
Ｐkを介して中継器２kに入力され、中継器２kで
それを検出し、スイツチSW６k，SW７kを反転す
る。この状態では遠隔地からのデータが線路端
P′kを介して遠隔地に返送される。 When a specific code is sent from a remote location, it is input to the repeater 2k via the line end Pk , which detects it and inverts the switches SW6k and SW7k . In this state, data from a remote location is transmitted to the track end.
is sent back to the remote location via P′ k .

次に遠隔地より直流が印加されると、線路端Ｐ
kから直流電源がリレー３kに流れこみ、接点SW
１k，SW２k，SW３k，SW４k，SW５kを反転す
る。したがつて中継器２kはバイパスされ、線路
がトランスを介して直結される。リレー３kに流
れこんだ電流は線路端P′kを介して遠隔地に戻
る。また接点SW５kが閉じることにより内蔵電源
４kはＱkを介して次段の中継器（図示せず）に直
流電流を印加する。 Next, when DC is applied from a remote location, the line end P
DC power flows from k to relay 3 k , contact SW
1 k , SW2 k , SW3 k , SW4 k , and SW5 k are inverted. Therefore, the repeater 2k is bypassed and the line is directly connected via the transformer. The current flowing into relay 3 k returns to the remote location via line end P′ k . Further, when the contact SW5k closes, the built-in power supply 4k applies a direct current to the next-stage repeater (not shown) via Qk .

したがつて第１図におけるパスＡk，Ｂk，B′k
の設定が可能となる。 Therefore, the paths A k , B k , B′ k in FIG.
settings can be made.

以上の説明により明らかなように、本発明によ
れば、中継系において中継器障害と線路障害の区
別が明確にでき、障害場所の識別が確実にできる
という効果がある。 As is clear from the above description, according to the present invention, it is possible to clearly distinguish between a repeater failure and a line failure in a relay system, and the location of the failure can be reliably identified.

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

第１図は本発明を用いた中継系の一部の構成を
示した回路図、第２図は本発明による一実施例の
構成を示したブロツク図である。 記号の説明：２kは中継器、２k+1は次段の中継
器、３kはリレー、４kは内蔵電源をそれぞれあら
わしている。 FIG. 1 is a circuit diagram showing a partial configuration of a relay system using the present invention, and FIG. 2 is a block diagram showing the configuration of an embodiment according to the present invention. Explanation of symbols: 2k represents a repeater, 2k +1 represents a next stage repeater, 3k represents a relay, and 4k represents a built-in power supply.

Claims (1)

【特許請求の範囲】[Claims] １ 中継系の障害を監視するために各々の中継器
に設けられた中継器監視回路において、遠隔地よ
り送られてくる特定コードを検出する手段と、該
コードを検出した後前記遠隔地より送られてくる
データをループ折り返しする手段と、前記遠隔地
より送られてくる直流を検出する手段と、該直流
を検出した時、中継器をバイパスし、該中継器に
設置された直流電源を次段中継器に印加する手段
とを有することを特徴とする中継器監視回路。1. In a repeater monitoring circuit provided in each repeater to monitor failures in the repeater system, means for detecting a specific code sent from a remote location, and means for detecting a specific code sent from the remote location after detecting the code. means for looping back data received from the remote location; means for detecting direct current sent from the remote location; 1. A repeater monitoring circuit comprising: means for applying voltage to a stage repeater.
JP57178440A 1982-10-13 1982-10-13 Supervisory circuit of repeater Granted JPS5970028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57178440A JPS5970028A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57178440A JPS5970028A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Publications (2)

Publication Number Publication Date
JPS5970028A JPS5970028A (en) 1984-04-20
JPS6244742B2 true JPS6244742B2 (en) 1987-09-22

Family

ID=16048552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57178440A Granted JPS5970028A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Country Status (1)

Country Link
JP (1) JPS5970028A (en)

Also Published As

Publication number Publication date
JPS5970028A (en) 1984-04-20

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