CN104091403A - Burglary warning device for power cable to be put into operation - Google Patents
Burglary warning device for power cable to be put into operation Download PDFInfo
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- CN104091403A CN104091403A CN201410304331.4A CN201410304331A CN104091403A CN 104091403 A CN104091403 A CN 104091403A CN 201410304331 A CN201410304331 A CN 201410304331A CN 104091403 A CN104091403 A CN 104091403A
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Abstract
The invention discloses a burglary warning device for a power cable to be put into operation, and relates to the technical field of cable warning devices. The burglary warning device comprises a power module, an MCU signal processing module, a signal output module, a signal receiving module, a system self-detection and indication module, a parameter tuning and fault judging module, a fault indication and output module and a warning device. Rectangular square waves sent by the MCU signal processing module pass through the signal output module, the cable and the signal receiving module and then are sent back to the MCU signal processing module, and the MCU signal processing module judges whether a broken cable exists or not according to the signal; if yes, stored critical capacitance values are retrieved from a parameter tuning unit and compared, box transformer numbers adjacent to a fault point are judged, judging results are sent to the fault indication and output module for display, and warning is given through the warning device. The burglary warning device can perform burglary monitoring on the power cable to be put into operation and is high in universality, simple in structure, low in cost and reliable in operation.
Description
Technical field
The present invention relates to power cable technical field.
Background technology
Increase along with urban population, newly-built residential quarters are mostly positioned at city suburbs, in to the process of newly-built community cabling, because suburb public security environment is poor, security weak in community, in addition power cable equipment needs the regular hour from being applied to put into operation, and causes cable machinery not charged idle for a long time.And existing cable anti-theft device is all the anti-thefting monitoring for live electric cable equipment, make power cable to be put into operation can not get monitoring, then cause when putting into operation power cable, having in newly-built community stolen.Cause great economic loss, had a strong impact on cable laying progress and project acceptance inspection work.Thereby the burglar alarm of power cable to be put into operation just becomes increasingly severe problem in new residential area.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of power cable anti-theft alarm device to be thrown, can treat throwing power cable and carry out anti-thefting monitoring, highly versatile, simple in structure, cheap, reliable, the provisional burglar alarm before being particularly suitable for residential quarters inner cable and not putting into operation is used.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of power cable anti-theft alarm device to be thrown, comprises power module, MCU signal processing module, signal output module, signal receiving module, System self-test survey and indicating module, parameter tuning and fault judge module, indicating fault and output module and warning device;
Described power module is converted into 220V alternating current direct current and powers respectively to MCU signal processing module, signal output module, signal receiving module and indicating fault and output module after transformation, rectification and filtering;
Described MCU signal processing module is realized to signal output module and is sent rectangle square wave, receives the rectangle square wave that signal receiving module sends; The rectangle square wave that real time detection signal receiver module sends, when there is disconnected cable, start indicating fault and output module and send low level signal to it, and receive the pulse signal that indicating fault and output module send, according to the pulse signal receiving, judge the capacitance of disconnected cable part and compare judgement with the capacitance of adjusting in advance, result is relatively sent to indicating fault and output module; Realization is surveyed and indicating module transmitted signal to System self-test;
Described signal output module is amplified the MCU signal processing module square-wave signal of reception after voltage stabilizing, exports to cable;
Described signal receiving module receives the rectangle square-wave signal of cable, is carried out exporting to MCU signal processing module after filtering amplitude limit;
Described System self-test is surveyed with indicating module and is comprised System self-test survey module and indicating module, System self-test is surveyed module and is received the pulse signal that MCU signal processing module sends, the duty of monitoring singlechip, realizes the voltage monitoring of single-chip microcomputer and program is detected certainly in real time; Indicating module is surveyed module with System self-test and is connected, and System self-test is surveyed to the testing result of module and is indicated, and when single-chip microcomputer is normally worked, does not indicate, and when System self-test survey module finds that single-chip microcomputer breaks down, indicating module carries out indicating fault;
Described parameter tuning and fault judge module connect MCU signal processing module, comprise parameter tuning unit and fault judging unit, and parameter tuning and the storage that each case is become to critical capacitance value realized in parameter tuning unit; The real-time detection streamer circuit of fault judging unit integrality, after disconnection fault occurs, MCU signal processing module is transferred the critical capacitance value of storage and is compared from parameter tuning unit, the case reversion that failure judgement point is contiguous;
Described indicating fault is connected with MCU signal processing module with output module, and realization, to interval demonstration and the action output of breaking, when there is disconnected cable, shows by charactron the case reversion that stolen cable closes on, and acts on relay connection warning device.
Further technical scheme, described MCU signal processing module controller used thereby is single-chip microcomputer STC89S52.
Further technical scheme, described warning device comprises alarm lamp and the emergency alarm bell of series connection.
The invention also discloses a kind of control method of power cable anti-theft alarm device to be thrown, its control flow is:
(1), after device power, by power module, powered to other each modules;
(2) MCU signal processing module initialization system;
(3) start System self-test and survey and indicating module, whether System self-test is surveyed module judgement and is made mistakes from detecting, if certainly detect mistake, starts indicating module and carries out indicating fault;
(4) if certainly detect and do not make mistakes, MCU signal processing module judge that whether system is in parameter tuning pattern, if the start-up parameter unit of adjusting completes after parameter tuning, restarts the cable detection of breaking of signal output module and signal receiving module; Otherwise, direct enabling signal output module and signal receiving module;
(5) if disconnected cable detected, the MCU signal processing module call parameters unit of adjusting compares, and judgement broken string is interval, and starts indicating fault and output module carries out fault alarm and indication; If disconnected cable do not detected, return to step (3).
The beneficial effect that adopts technique scheme to produce is: the present invention is by the power cable transmitted signal to be put into operation, and this pulse signal is detected in real time, once find disconnected cable, alerting signal is also sent rapidly in the disconnected cable of feedback position in time, has realized the anti-thefting monitoring for the treatment of the power cable that puts into operation; Can be applicable to various cable construction occasions, highly versatile; Can show and the immediate case reversion of disconnected cable, be convenient to the accurately disconnected cable in location position.The present invention is simple in structure, cheap, reliable, and the provisional burglar alarm before being particularly suitable for residential quarters inner cable and not putting into operation is used.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention 1;
Fig. 3 is control method process flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, a power cable anti-theft alarm device to be thrown, comprises power module, MCU signal processing module, signal output module, signal receiving module, System self-test survey and indicating module, parameter tuning and fault judge module, indicating fault and output module; Power module is connected with output module with MCU signal processing module, signal output module, signal receiving module and indicating fault; The rectangle square wave that MCU signal processing module sends, after signal output module, cable and signal receiving module, sends it back MCU signal processing module; MCU signal processing module judges whether to exist disconnected cable according to this signal, if there is disconnected cable, in parameter tuning unit from parameter tuning and fault judge module, transfer the critical capacitance value of storage and compare, the case reversion that failure judgement point is contiguous, and send to indicating fault and output module to show judged result, and report to the police by warning device.
Embodiment 1
As shown in Figure 2, described power module provides reliable and stable direct supply for whole Pulse-trigger control circuit, transformer TS1 changes 220V alternating current into 27V/950mA direct current, transformer TS1 output terminal by rectifier bridge and obtain respectively+24V of DC voltage-stabilizing chip ,+15V and+5V direct supply, power respectively to single-chip microcomputer STC89S52, relay, signal output module and the signal receiving module of MCU signal processing module.
Described signal output module receives the wide square wave of the P1.2 mouth generation of single-chip microcomputer STC89S52, after pull-up resistor R2, promotes MOSFET pipe VT1 and carries out power amplification, and VT1 output terminal, after stabilivolt VS1 and diode D2 voltage stabilizing, is connected to cable.
Described signal receiving circuit receives the signal that cable transmits, and delivers to the P1.3 mouth of single-chip microcomputer STC89S52 after the amplitude limiter circuit of hardware filtering and diode composition, realizes the sample detecting to wide square wave.
Described parameter tuning module and data memory module connect MCU signal processing module, comprise parameter tuning module and data memory module, and both are connected with MCU signal processing module respectively.
Described parameter tuning and fault judge module circuit are comprised of three parts.First is the driver plate key system that SW1, SW2, SW3, SW4 form, and presses the different debugging mode of key assignments, and store different capacitance parameter values by driver plate.The condition judgement of SW1, SW2 and SW3 implementation pattern debug phase, SW4 realizes the switching between debugging mode and running status.Wherein, corresponding case reversion is as shown in table 1 respectively for SW1, SW2.Second portion is the fault judging circuit being comprised of the elements such as 555 timers, UA741, TLC1543 and peripheral circuit thereof.Under normal circumstances, relay K E1 is connected with single-chip microcomputer P1.1 mouth, access signal receiving module.While monitoring short-term or under debugging mode, relay K E1 and 555 timers are connected, and by SW4 dial switch and 555 timers, form RC vibrating circuit; The second order active low-pass filter that UA741 forms is filtered into DC voltage Uo by oscillating voltage Ui, sends into the analog to digital converter that TLC1543 forms; TLC1543 and peripheral circuit thereof are converted to digital quantity A1 by analog quantity and send in single-chip microcomputer and X5045 and compare or store.Third part is the data memory module that X5045 forms, under debugging mode, variable condenser Cx is connected with 555 timers by SW4, sends into TLC1543 and carry out analog to digital conversion after UA741 filtering circuit, then by MCU Instruction, digital quantity is stored in X5045.Because capacitance Cx is corresponding with the frequency f of the oscillating voltage Ui of 555 timers generations, thus consistent with filtered DC voltage Uo, so that corresponding one by one with the digital quantity A1 obtaining after analog to digital conversion, and linear.Monitor after disconnection fault, relay K E1 action is connected with 555 timers, and the cable after broken string exists capacitance Cp, forms oscillatory circuit.Oscillating voltage Ui forms DC voltage Uo after UA741 filtering, and through TLC1543 conversion formation digital quantity, A1 is input in single-chip microcomputer.Single-chip microcomputer reads in this digital quantity A1, and reads the storage data in X5045, through relatively obtaining the immediate capacitance Cx with Cp, and is converted to case reversion, by the charactron being connected with single-chip microcomputer P0 mouth, P3.2 mouth, P3.3 mouth, shows this case reversion.
The corresponding case change of table 1 SW1, SW2 arranges table
| Case reversion | SW2.4 | SW2.3 | SW2.2 | SW2.1 | SW1.4 | SW1.3 | SW1.2 | SW1.1 |
| 1# case becomes | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 2# case becomes | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 3# case becomes | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| …… | …… | …… | …… | …… | …… | …… | …… | …… |
Described System self-test is surveyed with indicating module and is comprised System self-test survey module and indicating module, and System self-test is surveyed module and realized by X5045, and the CS pin of X5045 is connected with P1.7 mouth, realizes X5045 is enabled and forbidden.The pulse signal that single-chip microcomputer STC89S52 regularly sends to P1.7 mouth, regularly resets to single-chip microcomputer to realize this port, thereby carries out voltage monitoring and program self-checking function.
Described indicating module is surveyed module with System self-test and is connected, and indicating module is controlled and realized by single-chip microcomputer P3.4, and control signal is oppositely exported by LM339AD comparer, after R19 current limliting, and the negative electrode of sending and receiving optical diode, connect+5V of light-emitting diodes tube anode power supply.Light emitting diode fast blink (while normally moving, this diode extinguishes) when detection finds that single-chip microcomputer STC89S52 breaks down or program occurs that race flies certainly.
Described indicating fault and output module are divided into indicating fault unit and fault actions output unit.Fault actions output unit is moved by single-chip microcomputer P1.4 mouth pilot relay KE2, connects emergency alarm bell and alarm lamp circuit, reports to the police.Indicating fault unit is connected with P0 mouth, P3.2 mouth, P3.3 mouth by three digital tube displays, realizes the demonstration to the close case reversion of fault.
Described MCU signal processing module, its control core is single-chip microcomputer STC89S52, and the P1.2 mouth of single-chip microcomputer STC89S52 produces rectangle square wave, and P1.3 mouth receives the rectangle square wave that signal receiving module sends, the rectangle square wave that real time detection signal receiver module sends; P2 mouth, P1.1 mouth are connected with parameter tuning key SW3 and realize the record to parameter tuning stage capacitance; P1.7 mouth, P3.1 mouth, P3.6 mouth, P3.7 mouth are connected and realize Parameter storage and self-checking function respectively at the corresponding pin of X5045; The test that P1.5 mouth and P1.6 mouth are connected the oscillation period while realizing fault respectively at the corresponding pin of 555 timers; P1.4 mouth is connected with relay and realizes the indication of reporting to the police; P0 mouth, P3.2 mouth, P3.3 mouth are connected with three digital tube displays and realize the case reversion demonstration that fault is closed on.
As shown in Figure 3, a kind of control method of power cable anti-theft alarm device to be thrown, its control flow is:
(1), after device power, by power module, powered to other each modules;
(2) MCU signal processing module initialization system;
(3) start System self-test and survey and indicating module, whether System self-test is surveyed module judgement and is made mistakes from detecting, if certainly detect mistake, starts indicating module and carries out indicating fault;
(4) if certainly detect and do not make mistakes, MCU signal processing module judge that whether system is in parameter tuning pattern, if the start-up parameter unit of adjusting completes after parameter tuning, restarts the cable detection of breaking of signal output module and signal receiving module; Otherwise, direct enabling signal output module and signal receiving module;
(5) if disconnected cable detected, the MCU signal processing module call parameters unit of adjusting compares, and judgement broken string is interval, and starts indicating fault and output module carries out fault alarm and indication; If disconnected cable do not detected, return to step (3).
The present invention, by 220V AC-powered, during use, first, by one end three-phase short circuit of cable, connects respectively signal output module of the present invention and signal input module between any two-phase of the other end, is connected with case and becomes between cable.If cable is stolen, the present invention indication with break the immediate case reversion of cable send warning message, staff hears warning message, and can judge fast disconnected cable position according to the case reversion of indication, takes measures in time.
Traditional burglar alarm, for be the power cable having put into operation, i.e. live electric cable; Some warning device can show stolen, and what when it is reported to the police, show is and the distance of warning device that staff can not accurately judge disconnected cable position according to its distance.The present invention is mainly applicable to the not live electric cable to be put into operation of various construction occasions, and as on-the-spot in newly-built community cable laying, its scope of application is wider, and versatility is stronger.Before use, the positional information first case between cable the being become record of adjusting, can the immediate case reversion in the disconnected cable position of range of a signal when it is reported to the police, and facilitates the accurately disconnected cable of judgement position of staff, takes measures in time.
Claims (4)
1. a power cable anti-theft alarm device to be thrown, is characterized in that comprising power module, MCU signal processing module, signal output module, signal receiving module, System self-test survey and indicating module, parameter tuning and fault judge module, indicating fault and output module and warning device;
Described power module is converted into 220V alternating current direct current and powers respectively to MCU signal processing module, signal output module, signal receiving module and indicating fault and output module after transformation, rectification and filtering;
Described MCU signal processing module is realized to signal output module and is sent rectangle square wave, receives the rectangle square wave that signal receiving module sends; The rectangle square wave that real time detection signal receiver module sends, when there is disconnected cable, start indicating fault and output module and send low level signal to it, and receive the pulse signal that indicating fault and output module send, according to the pulse signal receiving, judge the capacitance of disconnected cable part and compare judgement with the capacitance of adjusting in advance, result is relatively sent to indicating fault and output module; Realization is surveyed and indicating module transmitted signal to System self-test;
Described signal output module is amplified the MCU signal processing module square-wave signal of reception after voltage stabilizing, exports to cable;
Described signal receiving module receives the rectangle square-wave signal of cable, is carried out exporting to MCU signal processing module after filtering amplitude limit;
Described System self-test is surveyed with indicating module and is comprised System self-test survey module and indicating module, System self-test is surveyed module and is received the pulse signal that MCU signal processing module sends, the duty of monitoring singlechip, realizes the voltage monitoring of single-chip microcomputer and program is detected certainly in real time; Indicating module is surveyed module with System self-test and is connected, and System self-test is surveyed to the testing result of module and is indicated, and when single-chip microcomputer is normally worked, does not indicate, and when System self-test survey module finds that single-chip microcomputer breaks down, indicating module carries out indicating fault;
Described parameter tuning and fault judge module connect MCU signal processing module, comprise parameter tuning unit and fault judging unit, and parameter tuning and the storage that each case is become to critical capacitance value realized in parameter tuning unit; The real-time detection streamer circuit of fault judging unit integrality, after disconnection fault occurs, MCU signal processing module is transferred the critical capacitance value of storage and is compared from parameter tuning unit, the case reversion that failure judgement point is contiguous;
Described indicating fault is connected with MCU signal processing module with output module, and realization, to interval demonstration and the action output of breaking, when there is disconnected cable, shows by charactron the case reversion that stolen cable closes on, and acts on relay connection warning device.
2. a kind of power cable anti-theft alarm device to be thrown according to claim 1, is characterized in that described MCU signal processing module controller used thereby is single-chip microcomputer STC89S52.
3. a kind of power cable anti-theft alarm device to be thrown according to claim 1, is characterized in that described warning device comprises alarm lamp and the emergency alarm bell of series connection.
4. a control method for power cable anti-theft alarm device to be thrown, is characterized in that control flow is:
(1), after device power, by power module, powered to other each modules;
(2) MCU signal processing module initialization system;
(3) start System self-test and survey and indicating module, whether System self-test is surveyed module judgement and is made mistakes from detecting, if certainly detect mistake, starts indicating module and carries out indicating fault;
(4) if certainly detect and do not make mistakes, MCU signal processing module judge that whether system is in parameter tuning pattern, if the start-up parameter unit of adjusting completes after parameter tuning, restarts the cable detection of breaking of signal output module and signal receiving module; Otherwise, direct enabling signal output module and signal receiving module;
(5) if disconnected cable detected, the MCU signal processing module call parameters unit of adjusting compares, and judgement broken string is interval, and starts indicating fault and output module carries out fault alarm and indication; If disconnected cable do not detected, return to step (3).
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Cited By (4)
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| CN106097614A (en) * | 2016-07-05 | 2016-11-09 | 安徽电信工程有限责任公司 | A kind of optical fiber anti-theft monitoring system |
| CN106961158A (en) * | 2017-04-28 | 2017-07-18 | 国家电网公司 | One kind matches somebody with somebody electrical equipment management method and system |
| CN113936404A (en) * | 2021-10-12 | 2022-01-14 | 重庆机场集团有限公司 | Anti-theft intelligent monitoring system and method for street lamp cable |
| CN114155675A (en) * | 2021-12-10 | 2022-03-08 | 重庆福田电力器材有限公司 | Cable fire prevention theftproof detects alarm system |
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