CN201035114Y - Automatic detection warning device for communication cable fault - Google Patents
Automatic detection warning device for communication cable fault Download PDFInfo
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- CN201035114Y CN201035114Y CNU2007200845145U CN200720084514U CN201035114Y CN 201035114 Y CN201035114 Y CN 201035114Y CN U2007200845145 U CNU2007200845145 U CN U2007200845145U CN 200720084514 U CN200720084514 U CN 200720084514U CN 201035114 Y CN201035114 Y CN 201035114Y
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- detection alarm
- circuit
- automatic detection
- alarm device
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Abstract
The utility model discloses a communication cable fault automatic detection and alarming device which comprises a cable distribution frame, at least one detection and alarming circuit unit and at least one communication cable. A pair of idle wires of the cable is taken from the cable distribution frame and is connected with the detection and alarming circuit unit. The terminals of the cable are respectively connected with terminal weighted resistors. The automatic detection and alarming device can also comprise an alarming device and a testing instrument. When open circuit or short circuit happens to the cable, the detection and alarming circuit unit alarms through the alarming device and switches the fault cable to the testing instrument. The utility model can position the fault part quickly and shorten the repair time to the greatest extent.
Description
Technical field
The utility model relates to the telecommunication cable technical field, particularly relates to the automatic detection alarm device of a kind of telecommunication cable fault.
Background technology
Cable has constituted complicated communication network as the transport vehicle of wire communication.In recent years, along with putting more effort of enterprise reform development, the construction of technological transformation and project begun newly causes the artificial phenomenon of damaging of telecommunication cable to increase, and the copper valency goes up in addition, the behavior that some lawless persons robbers cut cable is very rampant, and it is unimpeded to have had a strong impact on communications network security.When above-mentioned phenomenon takes place in cable, accuse fault if having only the individual user Shen this moment, the maintainer thinks the unit problem basically, do not recognize cable bad at all or be cut and cause, have only subscriber complaint many, experienced maintainer just recognizes it is cable problem, and it is long that fault restoration is lasted, and consumers' opinions is very big.
Publication number is that the Chinese invention patent of CN2285464 discloses a kind of warning device that utilizes telephone communication system that the abnormal failure in the underground raceway is monitored.Circuit unit takes place by time base in it, fault-signal transtation mission circuit unit and at least one road down pulse produce circuit unit and form, every road down pulse produces circuit the fault-signal of needs monitoring is converted into periodic down pulse, is sent by the band memory storage function button formula telephone set in the fault-signal transtation mission circuit unit.This invention circuit is simple, diverse in function, can send corresponding particular number to different failure conditions, so that the maintainer keeps the unimpeded of cable line.
But this device can only be applicable to the malfunction monitoring of underground cable, and it is in actual use, can not to the modern times more the complicated cable fault detect, the scope of application is very little, can not determine trouble location rapidly, detects weak effect.
Summary of the invention
The purpose of this utility model is to provide a kind of telecommunication cable fault automatic detection alarm device, and it can promptly determine to shorten repair time to greatest extent by trouble location.
The automatic detection alarm device of a kind of telecommunication cable fault for realizing that the utility model purpose provides comprises cable distribution rack, and at least one detection alarm circuit unit and at least one telecommunication cable;
The a pair of ceases to be busy of getting described cable on the described cable distribution rack is right, is connected on to detect on the described warning circuit unit;
The terminal of described cable connects terminal power resistance respectively.
Described automatic detection alarm device can also comprise alarm;
When described cable opens circuit or during short trouble, described detection alarm circuit unit sends warning by alarm.
Described automatic detection alarm device can further include tester;
When described cable opens circuit or during short trouble, described detection alarm circuit unit switches to tester with failure cable.
Described detection alarm circuit unit comprises control circuit and testing circuit.
Described detection alarm circuit unit can also comprise oscillatory circuit.
Described detection alarm circuit unit can further include power circuit.
Described oscillatory circuit is many together with oscillator for no stable state, and T=1/5 oscillation period of described oscillator is adjustable at 0.5～15 second.
Described tester is a DC-350B type electric cable failure detector.
The terminal power resistance of described cable is 100K.
Described power circuit is the 12V/10A D.C. regulated power supply.
The beneficial effects of the utility model are: the utility model is the automatic detection alarm device of a kind of telecommunication cable fault, and telecommunication cable is opened circuit and short circuit reflection sensitivity, and warning in time, accurately.Not only play the cable theft-prevention effect, and tracing trouble phenomenon rapidly, shorten to repair and last, improve the communication support quality.This device design is reasonable, and is simple in structure, easy to operate, safeguards easily and overhauls.Its formation mainly is made up of low-tension supply, detection signal generator, alarm, tellurometer and control circuit, can be widely used in the wire communication field, especially the backcountry cable rapid wear zone that easily is cut also is applicable to field cable maintenances management such as enterprises and institutions' wired intercom and monitoring.
Description of drawings
Fig. 1 is the automatic detection alarm schematic representation of apparatus of telecommunication cable fault;
Fig. 2 is the automatic detection alarm apparatus module of a telecommunication cable fault synoptic diagram;
Fig. 3 is the automatic detection alarm device circuit of the telecommunication cable fault figure of 4 cables of control.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing and example, the automatic detection alarm device of a kind of telecommunication cable fault of the present utility model are described in further detail.Should be appreciated that instantiation described herein only limits in order to understand the utility model.
The utility model patent mainly can be carried out effective monitoring and management to telecommunication cable, and it is unimpeded to guarantee network security.Its core content is to be provided with the user right balancing circuitry, in case cable opens circuit or short circuit, the circuit out of trim causes voltage fluctuation, by the conversion of high-low level, triggers logical circuit and control circuit, makes warning circuit work, reaches the warning purpose.
Fig. 1 is the automatic detection alarm schematic representation of apparatus of telecommunication cable fault.Automatic detection alarm device of the present utility model, be that a pair of ceases to be busy got on cable distribution rack 12 in the every cable is right, be connected in order on the detection alarm circuit unit 11, the terminal 15 of cable 1～cable 200 connects terminal power resistance 25 respectively, and its resistance is 100K.11 pairs of cables 1～200 of detection alarm circuit unit are monitored.When any cable opens circuit or during short trouble, detection alarm circuit unit 11 can both in time send warning by alarm 13, and failure cable is switched to tester 14 automatically.After the operator on duty hears warning, can press tester 14 automatic Test Switchboards, tester 14 shows that automatically this cable is in opening circuit or short trouble that how many kilometers (KM) are located.The operator on duty can directly assign maintenance instructions according to test result.
As shown in Figure 2, be the automatic detection alarm apparatus module of the utility model telecommunication cable fault synoptic diagram, it comprises control circuit 22, testing circuit 21, oscillatory circuit 23, power circuit 24, alarm 13, tester 14, and cable distribution rack 12 and terminal power circuit 25.
Described detection alarm circuit unit 11 comprises control circuit 22, testing circuit 21, and oscillatory circuit 23 and power circuit 24.
The automatic detection alarm device circuit of the telecommunication cable fault figure of 4 cables of Fig. 3 the utility model control.It is user's plate of 4 cables of a control, is the example explanation warning device course of work with the Line 1 cable below:
Z1 sealed relay Q1, Q2 form control circuit 22, and major function is the control alarm lamp, the work of alarm 13 and tester 14.
IC1 six ungated integrated circuits and D1, D2, D3 form failure detector circuit 21.
IC5, IC6 vibration and decimal counter are formed detection signal generation circuit, and it is glittering to detect pilot lamp D10 during work.
When operate as normal: power supply+12V → Z1 (2) (14) → terminal power resistance R → Z1 (4) (6) → R1, R2 → power cathode, because 2 of six not circuit a, b are connected to the power resistance R, so IC1 (9) pin is noble potential, the output of F1 gate circuit is anti-phase.IC1 (8) pin is that electronegative potential → F2 imports electronegative potential, is output as noble potential, and IC1 (6) noble potential ends D2.
When positive supply during, make that the d point is an electronegative potential through b point → R1, R2 → power-.The anti-phase D1 of making of F3 ends among the IC1.Because D1, D2 end simultaneously, IC1 (F4, F6) output is all electronegative potential, makes Q1, Q2 end, and alarm lamp does not work, and control circuit Z1 does not work.
When circuit breaks down:
Because a of testing circuit 21, b two ends adopt power resistance password to carry out true and false identification, when short circuit or open circuit appearred in a, b, power resistance R resistance increased or reduces, and causes F4 gate circuit e point high level to occur, made Q1, Q2 conducting.
Below with regard to the cable short circuit or the course of work when opening circuit be described in detail:
(1) short trouble: when external cable was short-circuited, power resistance equalled zero, and gate circuit F1 input high level → F2 output high level ends D2.The D point becomes high level by original low level to be made F3 be output as low level to make the D1 conducting.The c point becomes electronegative potential by noble potential after the D1 conducting, makes the e point become high level after the F4 gate circuit is anti-phase.
E point high level warp → R5 → Q2 conducting → D5 alarm lamp is bright.
→ D3 → F5 → F6 → R4 → Q1 conducting → Z1 adhesive
Z1 adhesive → contact 14,10,4,8 closures insert tester with outside line
→ contact 3,7 closures are connected alarm 13 power supplys, alarm 13 work
→ contact 13,11 disconnects, and test pilot lamp D4 extinguishes
(2) open circuit fault:
When outside line generation open circuit fault, power resistance becomes big, and the F1 input end is a low level, and output high level → F2 output low level makes D2 conducting → c point high level become low level → F4 to make the e point become high level after anti-phase.
E point high level → R5 → Q2 conducting → D5 alarm lamp is bright
→ D3 → F5 → F6 → R4 → Q1 conducting → Z1 adhesive
The Z1 adhesive; → contact 14,10,4,8 closures insert tester 14 with external cable
→ contact 3,7 closures are connected alarm 13 power supplys, send chimes of doom
→ contact 13,11 disconnects, and test pilot lamp D4 extinguishes.
The above oscillatory circuit is to comprise that the no stable state of IC5 and W1, R29, R30, C1 is many together with oscillator, oscillator f=1.44/ (RW1+R29+2R30) C1.
T=1/5 oscillation period of described oscillator is adjustable at 0.5～15 second.Its output is as the counting clock of IC6.
IC6 adopts decade counter/pulsqe distributor CD4017, and under the clock effect, high level pulse appears in IC6 (2)～(6) pin successively, pulse width is the clock period, D4, D10, D16, the D22 of correspondence are detected pilot lamp and light successively, go round and begin again, circulation endlessly.
Described tester 15 has adopted DC-350B type electric cable failure detector.This tester 15 has automatic test and manual test.The full test distance is 8 kilometers.4 kilometers with interior can be directly with test automatically.Exceed 4 kilometers and must use manual test.After fault alarm 14 sounded, the operator on duty can turn off alarm 14 sound equipments, directly presses automatic feeler switch, and LCD demonstrates the trouble spot automatically at what kilometer places.Simple to operate, data are directly perceived.
Described power circuit 24 adopts the 12V/10A D.C. regulated power supply, is installed in warning device portion cashier's office in a shop.
The utility model can be monitored 200 telecommunication cables, can also extend to 300 as required.
The complete machine power supply is the once-through type stabilized voltage supply, and specification is 12V/10A.
What tellurometer used is the product of east, Chongqing City electrical communication technology company limited production and sales, and model is DC-350B.
The utility model is through close beta, and is fairly obvious to the cable monitoring effect of being monitored.The one, the cable bad that plant area's construction causes can in time be reported to the police, and accurately measures trouble location, and the maintainer rushes for the site of an accident rapidly and rushes to repair, shortened greatly and judged by accident and search the time, improved maintenance efficiency, fault effects has been dropped to minimum, praised by the maintainer.The 2nd, successfully stoped repeatedly the law-breaker to steal behavior, because of reporting to the police in time, cooperate the public security department scene to catch and steal the personnel that cut, effectively contained the behavior of cutting of stealing, both ensured that communications network security was unimpeded,, obtained affirming of security department and company leader again for company has saved cost.
In conjunction with the drawings to the description of the utility model instantiation, others of the present utility model and feature are conspicuous to those skilled in the art.
More than instantiation of the present utility model is described and illustrates it is exemplary that these examples should be considered to it, and be not used in the utility model limited, the utility model should make an explanation according to appended claim.
Claims (10)
1. the automatic detection alarm device of telecommunication cable fault is characterized in that, comprises cable distribution rack, and at least one detection alarm circuit unit and at least one telecommunication cable;
The a pair of ceases to be busy of getting described cable on the described cable distribution rack is right, is connected on to detect on the described warning circuit unit;
The terminal of described cable connects terminal power resistance respectively.
2. automatic detection alarm device according to claim 1 is characterized in that, also comprises alarm;
When described cable opens circuit or during short trouble, described detection alarm circuit unit sends warning by alarm.
3. automatic detection alarm device according to claim 2 is characterized in that, also comprises tester;
When described cable opens circuit or during short trouble, described detection alarm circuit unit switches to tester with failure cable.
4. according to each described automatic detection alarm device of claim 1 to 3, it is characterized in that described detection alarm circuit unit comprises control circuit and testing circuit.
5. automatic detection alarm device according to claim 4 is characterized in that described detection alarm circuit unit also comprises oscillatory circuit.
6. automatic detection alarm device according to claim 5 is characterized in that described detection alarm circuit unit also comprises power circuit.
7. automatic detection alarm device according to claim 5 is characterized in that, described oscillatory circuit is many together with oscillator for no stable state, and T=1/5 oscillation period of described oscillator is adjustable at 0.5～15 second.
8. automatic detection alarm device according to claim 3 is characterized in that, described tester is a DC-350B type electric cable failure detector.
9. automatic detection alarm device according to claim 1 is characterized in that, the terminal power resistance of described cable is 100K.
10. automatic detection alarm device according to claim 6 is characterized in that described power circuit is the 12V/10A D.C. regulated power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200845145U CN201035114Y (en) | 2007-04-30 | 2007-04-30 | Automatic detection warning device for communication cable fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200845145U CN201035114Y (en) | 2007-04-30 | 2007-04-30 | Automatic detection warning device for communication cable fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035114Y true CN201035114Y (en) | 2008-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200845145U Expired - Fee Related CN201035114Y (en) | 2007-04-30 | 2007-04-30 | Automatic detection warning device for communication cable fault |
Country Status (1)
| Country | Link |
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| CN (1) | CN201035114Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI463153B (en) * | 2012-03-30 | 2014-12-01 | Atomic Energy Council | Triple-redundant failure auto-detector of analog output module |
-
2007
- 2007-04-30 CN CNU2007200845145U patent/CN201035114Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI463153B (en) * | 2012-03-30 | 2014-12-01 | Atomic Energy Council | Triple-redundant failure auto-detector of analog output module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20140430 |