CN105606943A - Alarm device of cable broken line fault and method thereof - Google Patents
Alarm device of cable broken line fault and method thereof Download PDFInfo
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- CN105606943A CN105606943A CN201510703698.8A CN201510703698A CN105606943A CN 105606943 A CN105606943 A CN 105606943A CN 201510703698 A CN201510703698 A CN 201510703698A CN 105606943 A CN105606943 A CN 105606943A
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Abstract
The invention provides an alarm device of a cable broken line fault and a method thereof. The alarm device comprises detection points, an initial detection module, a relay detection modules and terminal equipment, wherein the detection points are arranged on a cable to be detected with intervals\ from front to back; the initial detection module is arranged on the detection point of an initial position and is used for detecting whether the cable between the detection point of the initial position and a next adjacent detection point is broken; the relay detection module is arranged on the detection point, except for the detection point of the initial position, and is used for detecting whether the cable between the detection point where the module is located and the next adjacent detection point is broken; and the terminal equipment is connected to the initial detection module in a communication connection mode. By using the device and the method of the invention, a real-time detection function is possessed, and the broken line fault of the cable can be timely and accurately discovered, which is convenient for timely repairing. The device and the method have advantages that implementation is easy and can be performed on an existing laid overhead cable; a lightning stroke failure can be prevented anytime and anywhere, on-site sound alarm can be performed and so on.
Description
Technical field
The present invention relates to fault detection technique, particularly relate to a kind of warning device and method of cable break fault.
Background technology
At factory and power supply department, cable installation circuit is long, mostly uses communications optical cable, and power in the communications fieldThe cable great majority of system are aluminium core or copper core cable, are worth the most expensively, and a lot of cables are because laying distance, and position is remote, andThe reasons such as left unguarded, the phenomenon that cable is cut happens occasionally, and has a strong impact on production operation and daily life, causes great damageLose.
Sometimes cable power-off also not only is just stolen to cut and is caused, bad weather, road construction is careless, cable is aging etc. alsoCan cause cable break, and then cause power supply trouble. In existing patent, cable theft-prevention, can not often from cable wire itselfUse existing mounted cable large area is universal, or adopt the resonance method, the technical sides such as ohmic leakage method, increase letter collimation methodCase, have that cost is high, complex structure, be not easy to install, unreliable, constructional difficulties, warning device depend on locality, thunderboltThe shortcomings such as easy inefficacy.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of warning of cable break faultDevice and method, depends on cable wire itself for what solve that the antitheft and cable break detection technique of existing cable exists,Can not implement the cable having laid, the cost of existence is high, complex structure, difficulty of construction are large, can not receive whenever and wherever possibleThe problems such as warning message.
For achieving the above object and other relevant objects, one aspect of the present invention provides a kind of warning of cable break faultMethod, comprising:
On cable to be detected, test point is laid at interval from front to back, wherein, and for the test point of section start is installedBeginning detection module is remaining test point installing relaying detection module;
Detected from the test point of section start to the cable next adjacent test point by described initial detection moduleWhether line breaks, and is sent to terminal device if broken string forms corresponding fault message; And
Detected from the test point at its place to the cable next adjacent test point by described relaying detection moduleWhether line breaks, if broken string forms corresponding fault message, and described fault message is sequentially examined through each relaying in frontSurvey module refile to described initial detection module, then by described initial detection module, the described fault message receiving is sent outDeliver to terminal device.
Preferably, also comprise: for described initial detection module is connected lightning-protection module with described relaying detection module;
The first power electricity of connecting between the live wire at described initial detection module and described relaying detection module place and zero lineResistance and the second power resistor, described the first power resistor is formed by the first resistance and the parallel connection of the second resistance, described the second power electricityResistance is formed by the 3rd resistance and the parallel connection of the 4th resistance;
Between described the first power resistor and described the second power resistor, connect piezo-resistance and gas-discharge tube;
The piezo-resistance of connecting between the zero line at described initial detection module and described relaying detection module place and ground wire andGas-discharge tube; And
The piezo-resistance of connecting between the live wire at described initial detection module and described relaying detection module place and ground wire andGas-discharge tube.
Preferably, also comprise: the described relaying of described initial detection module and adjacent next place test point is detected to mouldPiece radio communication connects, so that described initial detection module can be received from described in next the place's test point being adjacentThe information that relaying detection module sends; And
Described relaying detection module is sequentially established a communications link from front to back between any two, in the time carrying out data communication,Transmit information by the rear relaying detection module in two adjacent relaying detection modules to previous relaying detection module.
Preferably, described initial detection module is sent to terminal device by mobile communication by described fault message;
Described terminal device comprises terminal and mobile terminal, described terminal and cloud server communication linkConnect, institute's cloud server is connected with described communication of mobile terminal.
Preferably, described initial detection module and described relaying detection module send buzzing alarm in the time broken string being detected.
The present invention also provides a kind of warning device of cable break fault on the other hand, comprising:
Interval is laid in the test point on cable to be detected from front to back;
Be installed in the initial detection module of section start test point, examine apart from next adjacent place for detection of section start test pointWhether the described cable between measuring point breaks;
Be installed in the relaying detection module of the test point except section start test point, for detection of the test point at its placeWhether the described cable apart from next adjacent place's test point breaks;
Terminal device with described initial detection module communication connection;
Wherein:
Described initial detection module in the time described cable broken string being detected, form corresponding fault message and by described thereforeBarrier information is sent to described terminal device;
Described relaying detection module in the time described cable broken string being detected, form corresponding fault message and by described thereforeBarrier information sequentially through each relaying detection module refile in front to described initial detection module, then through described initial detectionThe described fault message receiving is sent to terminal device by module.
Preferably, described initial detection module and described relaying detection module are all equiped with lightning-protection module;
Described lightning-protection module comprises the first power resistor of being series between live wire and zero line and the second power resistor, serial connectionPiezo-resistance and gas-discharge tube between described the first power resistor and described the second power resistor, be series at zero line and groundPiezo-resistance between line and gas-discharge tube and be series at live wire and ground wire between piezo-resistance and gas-discharge tube,Described the first power resistor is formed by the first resistance and the parallel connection of the second resistance, and described the second power resistor is by the 3rd resistance and the 4thResistance is in parallel to be formed.
Preferably, described initial detection module and described relaying detection module comprise exchanging of being connected with zero line with live wire/Direct current transducer and the wireless module being connected with described AC/DC converter, described wireless module is used for initial detection mouldPiece and each relaying detection module sequentially establish a communications link from front to back between any two, in the time carrying out data communication, by adjacentTwo modules from rear to front one-way transmission information.
Preferably, described initial detection module also comprises mobile communication module, for communicating to connect with described terminal device;Described terminal device comprises terminal and mobile terminal, described terminal and cloud server communication connection, institute's cloudEnd server is connected with described communication of mobile terminal.
Preferably in, described initial detection module and described relaying detection module comprise buzzing alarm module, for inspectionWhile measuring described cable broken string, send buzzing alarm.
As mentioned above, the warning device of a kind of cable break fault of the present invention and method, have following beneficial effect:
The warning device of cable break fault of the present invention and method, detect by the scanning of WDS technology pointwise relaying, if go outExisting disconnection fault, the geographical position of this power-off section can judge by the corresponding detection module of pointwise relaying scanning interruption position,Fault message feeds back forward by wireless pointwise again, finally sends event by initial detection module to terminal and mobile terminalBarrier information. The present invention has the function of real-time detection, and the disconnection fault of discovery cable that can be promptly and accurately, is convenient to repair in timeProtect, the present invention also has easy to implement, can implement the existing aerial cable having laid, can be whenever and wherever possible, prevent thunderboltLost efficacy, can on-the-spot audible alarm etc. advantage.
Brief description of the drawings
Fig. 1 is shown as the structural representation of the warning device of cable break fault of the present invention.
Fig. 2 is shown as the structured flowchart of initial detection module in the warning device of cable break fault of the present invention.
Fig. 3 is shown as the structured flowchart of relaying detection module in the warning device of cable break fault of the present invention.
Fig. 4 is shown as the structured flowchart of lightning-protection module in the warning device of cable break fault of the present invention.
Fig. 5 is shown as the flow chart of the alarm method of cable break fault of the present invention.
Element numbers explanation
11 initial detection modules
12 relaying detection modules
13 lightning-protection modules
111 AC/DC converters
112 wireless modules
113 buzzing alarm modules
114 mobile communication modules
121 AC/DC converters
122 wireless modules
123 buzzing alarm modules
21 terminals
22 mobile terminals
23 cloud servers
31～3n electric pole
S1～Sn test point
R1～R4 resistance
RV1～RV3 piezo-resistance
D1～D3 gas-discharge tube
L live wire
N zero line
PE ground wire
S21～S24 step S21～S24
Detailed description of the invention
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can be by this descriptionDisclosed content is understood other advantages of the present invention and effect easily. The present invention can also be by other different concrete realityThe mode of executing is implemented or is applied, and the every details in this description also can, based on different viewpoints and application, not deviate fromUnder spirit of the present invention, carry out various modifications or change. It should be noted that, in the situation that not conflicting, following examples and enforcementFeature in example can combine mutually.
It should be noted that, the diagram providing in following examples only illustrates basic structure of the present invention in a schematic wayThink, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size while implementing according to realityDraw, when its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel alsoMay be more complicated.
Refer to Fig. 1, the invention provides a kind of warning device and method of cable break fault, be applicable to cable, steel strandThe field trolley lines such as line, realize in real time and detecting the disconnection fault of cable, find in time the position of disconnection fault and report and submit eventBarrier information, is convenient to timely maintenance. The present invention detects by the scanning of WDS technology pointwise relaying, if there is power-off, and the ground of power-off sectionReason position can be judged by the corresponding detection module of pointwise relaying scanning interruption position, form corresponding fault message by wirelessPointwise is fed back forward, is finally relayed to initial detection module, this initial detection module by mobile communication to terminal andThe mobile terminals such as mobile phone send disconnection fault information. Adopt radio relay method, easy to implement, can enter implementing aerial cableRow is installed, and this warning device does not rely on specific monitoring place, can obtain fault message whenever and wherever possible and navigate to fault groundSection. Warning device and method below in conjunction with accompanying drawing to cable break fault of the present invention describe.
As shown in Figure 1, whether the warning device of a kind of cable break fault of the present invention breaks for detection of cable run, shouldWarning device comprises test point S1～Sn, initial detection module 11, relaying detection module 12 and terminal device, test point S1～Sn from front to back sequentially compartment of terrain be laid on cable to be detected, can set test point according to detecting distance, alsoCan, according to the electric pole 31～3n of the cable of having maked somebody a mere figurehead, in each electric pole place, a test point be set. Initial detectionModule 11 is installed in the test point S1 place of section start, initial detection module 11 for detection of section start test point S1 apart under adjacentWhether the cable between the one test point S2 of place breaks, and the cable setting up on electric pole comprises live wire L, zero line N and groundLine PE, is connected in initial detection module 11 between live wire L and zero line N at test point S1 place, examines by initial detection module 11Whether survey this cable breaks. Relaying detection module 12 is installed in the test point S2～Sn except section start test point S1Place, whether this relaying detection module 12 is disconnected apart from the cable of next adjacent place's test point for detection of the test point at its placeLine, such as the relaying detection module 12 at test point S2 place for detection of test point S2 to the cable between test point S3. InitialDetection module 11 and terminal device communication connection. When initial detection module 11 forms corresponding event in the time cable broken string being detectedBarrier information, and fault message is sent to terminal device, includes the test point that disconnection fault detected in this fault messageNumbering, therefore include test point S1 in the fault message that initial detection module 11 forms, can know cable by such markThe broken string position of line at test point S1 between test point S2. And when relaying detection module 12 shape in the time cable broken string being detectedBecome corresponding fault message, and by this fault message sequentially through each relaying detection module refile in front to initial detectionModule 11, then through initial detection module 11, the fault message receiving is sent to terminal device. Such as, when test point S3 placeRelaying detection module 12 detects cable break, and the relaying detection module 12 at this test point S3 place forms fault message and then shouldFault message sends the relaying detection module 12 at test point S2 place to, puts after testing the relaying detection module 12 at S2 place fault is believedInitial detection module 11 is given in breath refile.
Initial detection module 11 and relaying detection module 12 are all equiped with lightning-protection module 13, protect initial by lightning-protection moduleDetection module 11 and relaying detection module 12, improved the reliability detecting. As shown in Figure 4, lightning-protection module 13 comprises and being connected onThe first power resistor between live wire L and zero line N and the second power resistor are in being series at the first power resistor and the second power electricityPiezo-resistance RV1 between resistance and gas-discharge tube D1, the first power resistor is by the first resistance R 1 and the second resistance R 2 shape in parallelBecome, the second power resistor is formed by the 3rd resistance R 3 and the 4th resistance R 4 parallel connections. Between zero line N and ground wire PE, be in series with pressure-sensitiveResistance R V2 and gas-discharge tube D2. Between live wire L and ground wire PE, be in series with piezo-resistance RV3 and gas-discharge tube D3.
Lightning-protection module 13 by sealing in the first power resistor (51ohm3W), this power resistor between live wire L and zero line NIn parallel with resistance R 2 by resistance R 1, then connect piezo-resistance RV1 (MOV) (20D471), then the gas-discharge tube D1 (GDT) that connects(B8G600M), series connection the second power resistor (R3//R4) forms the protection of differential mode circuit, and live wire L and zero line N are respectively by pressure-sensitive electricity(20D471), series connection gas-discharge tube (GDT), (B8G600M) to the protection of PE ground wire, uses this group parameter topology to connect in resistance (MOV)Mode can reach 10KV lightning Protection.
Wherein seal in the power resistor being formed by parallel resistance, in the time of thunderbolt, can provide dividing potential drop, can reduce thunderbolt to pressure-sensitiveThe damage of resistance (MOV) and gas-discharge tube (GDT) device. In addition, piezo-resistance has larger parasitic capacitance, when its applicationIn the time of the protection of AC power supply system, tend to the leakage current under normal operating condition. By piezo-resistance and electric discharge pipe stringAfter connection, because the parasitic capacitance of discharge tube is very little, can make the total capacitance of whole series arm reduce. Utilize on the other hand pressure-sensitiveElectrical response speed is fast, and nonlinear characteristic is good, and discharge capacity is large, and the two series connection can be avoided gas-discharge tube afterflow, reactionSlow shortcoming, the nonlinear characteristic of piezo-resistance is turn-offed immediately gas-discharge tube after action, and without afterflow, operating duty is light,Resistance to repetitive operation ability is strong. The operation principle of gas-discharge tube is gas discharge. In the time that two voltage across poles are enough large, pole clearanceBy discharge breakdown, be converted into conduction state by original state of insulation, similar short circuit. The voltage that under conduction state, two interpolars maintainVery low, generally at 20～50V, therefore can play the effect of protection late-class circuit, but reaction is slower.
As shown in Figure 2, initial detection module 11 comprise the AC/DC converter 111 that is connected with live wire L and zero line N, withThe wireless module 112 that AC/DC converter 111 connects, the buzzing alarm module being connected with AC/DC converter 111113 and the mobile communication module 114 that is connected with AC/DC converter 111, AC/DC converter 111 connects and detectsLive wire L and the zero line N at some S1 place, for the alternating current at live wire L and zero line N place being converted to direct current, and by this direct currentFor wireless module 112, buzzing alarm module 113 and mobile communication module 114 are powered, can be in real time by this current supply circuitThe break-make situation of detection streamer line. Wireless module 112 is for communicating and be connected with adjacent relaying detection module 12, in conjunction with figureShown in 1, receive by this wireless module 112 fault message that the relaying detection module 12 at test point S2 place sends. Mobile communicationModule 114, for communicating to connect with terminal device, is sent to terminal device by mobile communication by fault message, and mobile communication canThink the communication networks such as 3G, 4G or GSM, this terminal device comprises terminal 21 and mobile terminal 22, mobile terminal 22Comprise mobile phone, panel computer etc., fault message is sent to terminal 21 and mobile terminal 22, can guarantee fault messageKnown in time, terminal 21 communicates to connect by network service and cloud server 23, and terminal 21 is receivingAfter fault message, fault message is sent to cloud server 23, this cloud server 23 communicates to connect with mobile terminal 22,The fault message obtaining is sent to mobile terminal 22. Buzzing alarm module 113 for sending in the time cable broken string being detectedBuzzing alarm, plays the effect of warning, if this cable breaks because pilferage behavior causes, this buzzing can also be deterred and be stolenSteal the involved party of cable, and make it end to steal.
As shown in Figure 3, relaying detection module 12 comprise the AC/DC converter 121 that is connected with live wire L and zero line N, withThe wireless module 122 that AC/DC converter 121 connects and the buzzing alarm mould being connected with AC/DC converter 121Piece 123. AC/DC converter 121 connects live wire L and the zero line N at the test point place at its places, for by live wire L and zero line NThe alternating current at place is converted to direct current, and is that wireless module 122 and buzzing alarm module 123 are powered by this direct current, passes throughThis current supply circuit gets final product the break-make situation of real-time detection streamer line. Wireless module 122 in relaying detection module 12 is each for inciting somebody to actionIndividual relaying detection module sequentially establishes a communications link from front to back between any two, in the time carrying out data communication, sends fault letterWhen breath, by two adjacent relaying detection modules from rear to front one-way transmission fault message. Buzzing alarm module 123 is for examiningWhile measuring cable broken string, send buzzing alarm, play the effect of warning, if this cable broken string is because pilferage behavior causes, this buzzing can also be deterred the involved party who steals cable, and makes it end to steal.
As shown in Figure 1, the warning device of cable break fault of the present invention utilizes wireless relaying technique, by wireless signal fromThe a relay point next relay point of delivering in relays, and form new wireless coverage area, thus form multiple wireless relayCover some relay pattern, finally reach the object of the coverage of extending wireless network. The present invention is by test point is sequentially set,Carrying out the detection of cable by the detection module of being located at test point place,, by wireless connections, and is phase between each detection moduleBetween adjacent detection module, from rear to front one-way communication, in the time detecting, realize the retrieval of relaying step by step from front to back, work as discoveryWhen broken string, feed back to forward step by step initial detection module by the detection module at breakpoint place, inform that by initial detection module terminal establishesStandby, can make attendant receive that fault message is reported to the police whenever and wherever possible and accurately navigate to cable break ground by fault messageSection. The simultaneously contiguous prime detection module in the breakpoint place sound warning of can sounding a buzzer.
Below the alarm method of cable break fault of the present invention is described.
As shown in Figure 5, the alarm method of cable break fault of the present invention comprises the steps:
Execution step S21, on the cable detecting in need, test point is laid at interval from front to back; Shown in Fig. 1, at cableOn from front to back interval lay test point S1～Sn, being spaced apart its front-end detection and putting the section of required detection between this test pointRoad, in practice, can mark off test point according to electric pole 31～3n, at each electric pole place, a test point is set. ConnectExecution step S22.
Execution step S22, for the test point of section start is installed initial detection module, remaining test point installing relaying detectsModule; At the initial detection module 11 of test point S1 place installing, test point S2～Sn place all installs relaying detection module 12. Then holdRow step S23 and step S24.
Execution step S23, is detected from section start to the cable next adjacent test point by initial detection moduleWhether line breaks, and is sent to terminal device if broken string forms fault message; Be installed in the initial detection module at test point S1 placeWhether 11 detect test point S1 breaks to the cable between test point S2, forms fault message and is sent to terminal if there is broken stringEquipment, notifies attendant.
Execution step S24, is detected the test point at its place to the cable between next test point by relaying detection moduleWhether break, if broken string form fault message and forward refile to initial detection module, sent by initial detection moduleTo terminal device; The detection that the detection segment of the relaying detection module 12 at each test point place is its place to next test point itBetween, describing as an example of the relaying detection module 12 at test point S3 place example, the relaying detection module 12 at test point S3 place is for inspectionSurvey test point S3 and whether break to the cable between test point S4, if detect broken string form fault message and forward relay passDeliver to initial detection module 11, the relaying detection module 12 at test point S3 place by fault message be sent to test point S2 place inThe detection module 12 that continues, the fault message of reception is sent to initial detection module by the relaying detection module 12 of putting after testing S2 place11, then by initial detection module 11, fault message is sent to terminal device, notify attendant.
Install detection module at each test point place, comprised initial detection module 11 and relaying detection module 12, will riseBeginning detection module 11 is connected by radio communication with the relaying detection module 12 at test point S2 place, makes initial detection module 11 energyThe fault message that enough acceptance sends from the relaying detection module 12 at test point S2 place; Relaying detection module 12 is complied with from front to backOrder is set up between any two radio communication and is connected, in the time carrying out data communication, after in two adjacent relaying detection modules 12A relaying detection module 12 transmits fault message to previous relaying detection module 12, and the relay that forms fault message feedback passesSend. By by each detection module wireless connections, realized wireless signal from the next one inspection of delivering in relays of a test pointMeasuring point, has formed wireless coverage area, and the detection module relaying that has formed multiple test points place covers some relay pattern, then formsNeed, after the fault message of feedback, to feed back to forward one by one initial detection module by the detection module at each test point place.
The fault message forming comprises the positional information of test point, the position of breaking by the positional information mark of test pointPut, can make attendant know in time trouble point, be convenient to safeguard in time.
Preferably, initial detection module 11 connects terminal device by mobile communication, by mobile communication by fault messageBe sent to terminal device, mobile communication comprises the communication networks such as 3G, 4G, GSM. Wherein terminal device comprises terminal 21 HesMobile terminal 22, initial detection module 11 is sent out the fault message of the fault message receiving and oneself formation by mobile communicationGive terminal 21 and mobile terminal 22, this mobile terminal 22 can be mobile phone or panel computer etc. Terminal21 communicate to connect with cloud server 23, the fault message receiving are synchronized to cloud server 23, this cloud server 23Communicate to connect with mobile terminal 22, the fault message synchronously receiving is sent to mobile terminal 22 by cloud server 23. By upperState the multiple feedback communication of information, can make attendant receive fault message whenever and wherever possible and report to the police, and pass through fault messageNavigate to exactly cable break location.
Initial detection not 11 and relaying detection module 12 detect that cable break fault forms in fault message and send outGo out buzzing alarm, form deterrent force by buzzing sound, if break because pilferage behavior causes, this buzzing sound is to stealingInvolved party can play certain deterrent effect, and then ends pilferage behavior.
The structure of the initial detection module 11 in the alarm method of cable break fault of the present invention is as follows: as shown in Figure 2, and shouldInitial detection module 11 comprise the AC/DC converter 111 that is connected with live wire L and zero line N, with AC/DC converter 111Connect wireless module 112, the buzzing alarm module 113 being connected with AC/DC converter 111 and turn with ac/dcThe mobile communication module 114 that parallel operation 111 connects, connects the live wire L and zero at test point S1 place by AC/DC converter 111Line N for the alternating current at live wire L and zero line N place is converted to direct current, and is wireless module 112, buzzing by this direct currentAlarm module 113 and mobile communication module 114 are powered, and then get final product the logical of real-time detection streamer line by this current supply circuitDisconnected situation. Wireless module 112 is for communicating and be connected with adjacent relaying detection module 12, shown in Fig. 1, by this nothingWire module 112 receives the fault message that the relaying detection module 12 at test point S2 place sends. Mobile communication module 114 for endEnd devices communicating connect, by mobile communication, fault message is sent to terminal device, mobile communication can be 3G, 4G orThe communication networks such as GSM, buzzing alarm module 113 is for detecting that cable broken string time sends buzzing alarm, plays warningEffect.
The structure of the relaying detection module 12 in the alarm method of cable break fault of the present invention is as follows: as shown in Figure 3, inThe detection module 12 that continues comprises the AC/DC converter 121 that is connected with live wire L and zero line N, connects with AC/DC converter 121The wireless module 122 connecing and the buzzing alarm module 123 being connected with AC/DC converter 121. AC/DC converter121 connect live wire L and the zero line N at the test point place at its place, for the alternating current at live wire L and zero line N place is converted to direct currentElectricity, and be that wireless module 122 and buzzing alarm module 123 are powered by this direct current, can examine in real time by this current supply circuitSurvey the break-make situation of cable. Wireless module 122 in relaying detection module 12 is for by each relaying detection module in the past extremelyAfter sequentially establish a communications link between any two, in the time carrying out data communication, while sending fault message, by two adjacent relayingsDetection module is from rear to front one-way transmission fault message. Buzzing alarm module 123 for sending in the time cable broken string being detectedBuzzing alarm, plays the effect of warning.
In the alarm method of cable break fault of the present invention, also comprise: be initial detection module 11 and relaying detection module 12Connect lightning-protection module 13, play lightning protection, concrete steps are as follows:
As shown in Fig. 4 and Fig. 1, at the live wire L and zero of initial detection module 11 and relaying detection module 12 place test pointsBetween line N, connect the first power resistor and the second power resistor, the first power resistor by the first resistance R 1 and the second resistance R 2 alsoConnection forms, and the second power resistor is formed by the 3rd resistance R 3 and the 4th resistance R 4 parallel connections; In the first power resistor and the second powerThe piezo-resistance of connecting between resistance RV1 and gas-discharge tube D1; The pressure-sensitive electricity of connecting between the zero line N of this test point and ground wire PEResistance RV2 and gas-discharge tube D2; Between the live wire L of this test point and ground wire PE, connect piezo-resistance RV3 and gas-discharge tubeD3。
This lightning-protection module 13 by sealing in the first power resistor (51ohm3W), this power electricity between live wire L and zero line NHinder in parallelly with resistance R 2 by resistance R 1, then connect piezo-resistance RV1 (MOV) (20D471), then the gas-discharge tube D1 (GDT) that connects(B8G600M), series connection the second power resistor (R3//R4) forms the protection of differential mode circuit, and live wire L and zero line N are respectively by pressure-sensitive electricity(20D471), series connection gas-discharge tube (GDT), (B8G600M) to the protection of PE ground wire, uses this group parameter topology to connect in resistance (MOV)Mode can reach 10KV lightning Protection.
Wherein seal in the power resistor being formed by parallel resistance, in the time of thunderbolt, can provide dividing potential drop, can reduce thunderbolt to pressure-sensitiveThe damage of resistance (MOV) and gas-discharge tube (GDT) device. In addition, piezo-resistance has larger parasitic capacitance, when its applicationIn the time of the protection of AC power supply system, tend to the leakage current under normal operating condition. By piezo-resistance and electric discharge pipe stringAfter connection, because the parasitic capacitance of discharge tube is very little, can make the total capacitance of whole series arm reduce. Utilize on the other hand pressure-sensitiveElectrical response speed is fast, and nonlinear characteristic is good, and discharge capacity is large, and the two series connection can be avoided gas-discharge tube afterflow, reactionSlow shortcoming, the nonlinear characteristic of piezo-resistance is turn-offed immediately gas-discharge tube after action, and without afterflow, operating duty is light,Resistance to repetitive operation ability is strong. The operation principle of gas-discharge tube is gas discharge. In the time that two voltage across poles are enough large, pole clearanceBy discharge breakdown, be converted into conduction state by original state of insulation, similar short circuit. The voltage that under conduction state, two interpolars maintainVery low, generally at 20～50V, therefore can play the effect of protection late-class circuit, but reaction is slower.
In sum, the warning device of cable break fault of the present invention and method, adopt wireless relay mode, and it is right to have realizedCable segmentation relaying detects and relaying feeds back fault message step by step, and the monitoring of its detection does not rely on specific monitoring place,Can obtain fault alarm whenever and wherever possible and navigate to fault location, being convenient to implement, also can be real for the aerial cable having laidExecute detection. Having solved existing cable theft-prevention scheme depends on cable wire itself and can not carry out the aerial cable having laidThe problem of implementing. In addition, the present invention also has lightning protection circuit, and reliability is high. So the present invention has effectively overcome existing skillVarious shortcoming in art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention. Any ripeThe personage who knows this technology all can, under spirit of the present invention and category, modify or change above-described embodiment. CauseThis, have in technical field under such as conventionally know the knowledgeable do not depart under disclosed spirit and technological thought completeAll equivalences that become are modified or change, and must be contained by claim of the present invention.
Claims (10)
1. an alarm method for cable break fault, is characterized in that, comprising:
On cable to be detected, test point is laid at interval from front to back, wherein, and for the test point of section start is installed initial inspectionSurveying module, is remaining test point installing relaying detection module;
Detected by described initial detection module and from the test point of section start to the cable next adjacent test point beNo broken string, is sent to terminal device if broken string forms corresponding fault message; And
Detected by described relaying detection module and from the test point at its place to the cable next adjacent test point beNo broken string, if broken string forms corresponding fault message, and sequentially detects mould through each relaying in front by described fault messagePiece refile is described initial detection module extremely, then by described initial detection module, the described fault message receiving is sent toTerminal device.
2. the alarm method of cable break fault as claimed in claim 1, is characterized in that, also comprises: be described initial inspectionSurvey module and be connected lightning-protection module with described relaying detection module;
Between the live wire at described initial detection module and described relaying detection module place and zero line, connect the first power resistor andThe second power resistor, described the first power resistor forms by the first resistance and the second resistance are in parallel, described the second power resistor byThe 3rd resistance and the 4th resistance are in parallel to be formed;
Between described the first power resistor and described the second power resistor, connect piezo-resistance and gas-discharge tube;
Between the zero line at described initial detection module and described relaying detection module place and ground wire, connect piezo-resistance and gasDischarge tube; And
Between the live wire at described initial detection module and described relaying detection module place and ground wire, connect piezo-resistance and gasDischarge tube.
3. the alarm method of cable break fault as claimed in claim 1, is characterized in that, also comprises: by described initial inspectionSurvey the described relaying detection module radio communication that module locates test point with adjacent next and be connected, to make described initial detection mouldPiece can receive the information sending from the described relaying detection module of next the place's test point being adjacent; And
Described relaying detection module is sequentially established a communications link from front to back between any two, in the time carrying out data communication, by phaseA rear relaying detection module in two adjacent relaying detection modules transmits information to previous relaying detection module.
4. the alarm method of cable break fault as claimed in claim 1, is characterized in that,
Described initial detection module is sent to terminal device by mobile communication by described fault message;
Described terminal device comprises terminal and mobile terminal, described terminal and cloud server communication connection,Institute's cloud server is connected with described communication of mobile terminal.
5. the alarm method of cable break fault as claimed in claim 1, is characterized in that, described initial detection module and instituteState relaying detection module and in the time broken string being detected, send buzzing alarm.
6. a warning device for cable break fault, is characterized in that, comprising:
Interval is laid in the test point on cable to be detected from front to back;
Be installed in the initial detection module of section start test point, locate test point for detection of section start test point apart from adjacent nextBetween described cable whether break;
Be installed in the relaying detection module of the test point except section start test point, for detection of the test point at its place apart from phaseWhether the described cable of next adjacent place's test point breaks;
Terminal device with described initial detection module communication connection;
Wherein:
Described initial detection module forms corresponding fault message and described fault is believed in the time described cable broken string being detectedBreath is sent to described terminal device;
Described relaying detection module forms corresponding fault message and described fault is believed in the time described cable broken string being detectedCease the sequentially extremely described initial detection module of each relaying detection module refile through front, then through described initial detection moduleThe described fault message receiving is sent to terminal device.
7. the warning device of cable break fault as claimed in claim 6, is characterized in that, described initial detection module and instituteState relaying detection module and be all equiped with lightning-protection module;
Described lightning-protection module comprises the first power resistor and the second power resistor that are series between live wire and zero line, is serially connected with instituteState piezo-resistance and gas-discharge tube between the first power resistor and described the second power resistor, be series at zero line and ground wire itBetween piezo-resistance and gas-discharge tube and be series at live wire and ground wire between piezo-resistance and gas-discharge tube, described inThe first power resistor is formed by the first resistance and the parallel connection of the second resistance, and described the second power resistor is by the 3rd resistance and the 4th resistanceIn parallel formation.
8. the warning device of the cable break fault as described in claim 6 or 7, is characterized in that, described initial detection moduleComprise the AC/DC converter being connected with live wire and zero line and change with described ac/dc with described relaying detection moduleThe wireless module that device connects, described wireless module is for by initial detection module and each relaying detection module sequentially from front to backEstablish a communications link between any two, in the time carrying out data communication, by two adjacent modules from rear to front one-way transmission information.
9. the warning device of cable break fault as claimed in claim 8, is characterized in that, described initial detection module also wrapsDraw together mobile communication module, for communicating to connect with described terminal device; Described terminal device comprises terminal and eventually mobileEnd, described terminal and cloud server communication connection, institute's cloud server is connected with described communication of mobile terminal.
10. the warning device of cable break fault as claimed in claim 6, is characterized in that, described initial detection module andDescribed relaying detection module comprises buzzing alarm module, for send buzzing alarm in the time described cable broken string being detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510703698.8A CN105606943A (en) | 2015-10-27 | 2015-10-27 | Alarm device of cable broken line fault and method thereof |
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| CN201510703698.8A CN105606943A (en) | 2015-10-27 | 2015-10-27 | Alarm device of cable broken line fault and method thereof |
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| CN201510703698.8A Pending CN105606943A (en) | 2015-10-27 | 2015-10-27 | Alarm device of cable broken line fault and method thereof |
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