CN2171117Y - Automatic alarm for line fault - Google Patents
Automatic alarm for line fault Download PDFInfo
- Publication number
- CN2171117Y CN2171117Y CN 93224906 CN93224906U CN2171117Y CN 2171117 Y CN2171117 Y CN 2171117Y CN 93224906 CN93224906 CN 93224906 CN 93224906 U CN93224906 U CN 93224906U CN 2171117 Y CN2171117 Y CN 2171117Y
- Authority
- CN
- China
- Prior art keywords
- relay
- alarm
- faults
- loop
- utility
- 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 - Fee Related
Links
- 230000007774 longterm Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Alarm Systems (AREA)
Abstract
The utility model relates to an automatic alarm for line faults, which can continuously monitor various lines and electrical cables and automatically give the alarm once faults occur. The utility model comprises an operating power source with high internal resistance, a fixed bias circuit, a dc operating circuit, an alarm circuit, etc. The device can be coupled in electric current for a long term, can work independently and continuously when arranged in a carrier chamber, does not influence the normal operation of the original external line circuits, and does not introduce telluric effluvium and noises. Once external lines are stolen, broken off, or twisted, the utility model can be matched with other devices to report specific positions of faults within three minutes, can clear the faults in time, and can quickly recover unblocked communication lines.
Description
A kind of can uninterruptedly the prison shown all kinds of circuits, cable, in case the line fault autoalarm that breaks down and can report to the police automatically.
It belongs to the unimpeded device of protection communication line.
At present China is not also to the automatic monitoring and warning device of open-wire line or telecommunication cable, existing testing tool, can only be used in as decibel meter, oscillator, detection of cable fault instrument, line fault pulsing telemeter etc. and to have found outside line broken string or twisted wire fault time test is used, instrument itself can not show and alarm automatically that conventionally test work at ordinary times also must be carried out after the interrupt communication by day and night continual prison.
The purpose of this utility model is exactly in a single day to break down and can in time alarm in order to solve used various open-wire lines of present various types of communication circuit or cable, and can cooperate the pulse telegauge to quote the particular location of fault, fix a breakdown so that in time handle, to guarantee the unimpeded of communication line.
The utility model comprises parts such as power supply, bias current loop, DC operation loop, alarm loop, and direct supply forms high internal resistance working power through diode polarity protection, voltage stabilizing connection electrical resistance element again; Electric current forms the bias current loop through a coil and some resistance of relay; Electric current inserts outside line formation DC operation loop through another coil of pilot tone table and relay again; Electric current is through relay J
1Touch spring and relay J
2, stand by lamp, signal alarm bell, form the alarm loop, stabilized voltage supply is directly supplied with the direct current of stand by lamp, signal alarm bell, and can supply with other lines of machine public to same equipment parallel connection.
When relay to touch spring and pilot tone table normal when placed in the middle, relay J
1The magnetic flux that produces separately of two coils equate that direction is opposite each other, is in the counteracting state.When the outside line resistance variations, the electric current in DC operation loop produce change accordingly, when surpassing setting, left avertence or right avertence appear in the spring that touches of relay, connect stand by lamp, signal alarm bell by relay.
This equipment can insert in the electric current for a long time, be placed in carrier room, independent non-stop run, become a part of equipment of telecommunication circuit, all do not influence former line circuit operate as normal no matter whether it normally (comprises power failure), do not introduce ground vapour and noise, to various audio frequency open-wire lines, under the situation of not interrupt communication of cable, make continual state and show fault warning, in case circuit is stolen, broken string or twisted wire, or broken string, or twisted wire, can cooperate the pulse telegauge in 3 minutes, to quote the particular location of fault, so that in time handle, fix a breakdown, it is unimpeded to recover communication line rapidly.
Accompanying drawing of the present utility model is the electrical schematic diagram of line fault autoalarm.
Embodiment can adopt 24V direct current serial connection diode D referring to accompanying drawing
1C in parallel
1, D
2Voltage stabilizing, serial connection R
1, R
3Form high internal resistance stabilized voltage supply; The power series relay J
16---5 coils, resistance R
6, R
5, R
4Form the bias current loop; The output terminal shunt capacitance C of power supply
2After, its positive terminal serial connection pilot tone table and relay J
12---1 coil, insert repeating coil, connect outside line T line again, through outer load, connect outside line R line and return, through resistance R
3Connect power cathode, form the DC operation loop.Connect between the end at power positive end and outside line simultaneously, meet a diode D that working inverse voltage is higher again
3, itself and relay J
1The parallel connection of pilot tone table is used for anti-user's ring mistake alarm of crosstalking.Relay J
1In touch spring J
1-1One end connects relay J
2With stand by lamp, signal alarm bell, directly be connected on the 24V stabilized voltage supply relay J
2With C
4, R
7Parallel connection, a pilot tone table and a shunt resistance R
2Parallel connection is used C between two series sides in the outside line
3Hand over every straight-through.This inspect by instrument is errorless, and the interior lines that are loaded on the carrier room outside line after the adjustment connect jack, get final product operate as normal.
Claims (2)
1, a kind of line fault autoalarm, it is made up of power supply, bias current loop, DC operation loop, alarm loop etc., it is characterized in that direct current serial connection diode D
1, C in parallel
1, D
2, the serial connection R
1, R
3, form high internal resistance stabilized voltage supply, power series relay J
1Form bias current loop, power series pilot tone table and relay J with some resistance
1, insert outside line again and form DC operation loop, relay J
1The spring that touches connect relay J
2Form the alarm loop with stand by lamp, signal alarm bell.
2, line fault autoalarm according to claim 1 is characterized in that meeting a diode D between power positive end and the outside line link
3, itself and relay J
1With the parallel connection of pilot tone table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224906 CN2171117Y (en) | 1993-09-18 | 1993-09-18 | Automatic alarm for line fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224906 CN2171117Y (en) | 1993-09-18 | 1993-09-18 | Automatic alarm for line fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2171117Y true CN2171117Y (en) | 1994-07-06 |
Family
ID=33802818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93224906 Expired - Fee Related CN2171117Y (en) | 1993-09-18 | 1993-09-18 | Automatic alarm for line fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2171117Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376191A (en) * | 2012-04-20 | 2013-10-30 | 上海华虹Nec电子有限公司 | Intelligent multi-channel leakage and breakage detection system |
| CN104101811A (en) * | 2013-04-14 | 2014-10-15 | 英飞凌科技奥地利有限公司 | Detection of defective electrical connections |
-
1993
- 1993-09-18 CN CN 93224906 patent/CN2171117Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376191A (en) * | 2012-04-20 | 2013-10-30 | 上海华虹Nec电子有限公司 | Intelligent multi-channel leakage and breakage detection system |
| CN104101811A (en) * | 2013-04-14 | 2014-10-15 | 英飞凌科技奥地利有限公司 | Detection of defective electrical connections |
| US9664728B2 (en) | 2013-04-14 | 2017-05-30 | Infineon Technologies Austria Ag | Detection of defective electrical connections |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |