CN105844830A - Power cable anti-theft alarm system - Google Patents
Power cable anti-theft alarm system Download PDFInfo
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- CN105844830A CN105844830A CN201610256950.XA CN201610256950A CN105844830A CN 105844830 A CN105844830 A CN 105844830A CN 201610256950 A CN201610256950 A CN 201610256950A CN 105844830 A CN105844830 A CN 105844830A
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- signal
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- power
- cable run
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
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- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The present invention discloses a power cable anti-theft alarm system. The power cable anti-theft alarm system comprises: a master control device, a slave control device and a low-voltage power supply with a presetting voltage value arranged on a presetting cable line; the low-voltage power supply is configured to supply power to the presetting cable line when the power frequency power supply of the presetting cable line is located in the disconnection state; the master control device is located at the control end of the presetting cable line and configured to receive the detection signals sent by the control device and determine whether the presetting cable line is disconnected or not according to the detection signals; and the slave control device is located at the tail end of the presetting cable line and configured to send detection signals through the cable line to the master control device. When the power frequency power supply of the cable line is located in the disconnection state, the low-voltage power supply supplies power to ensure anti-theft monitoring for 24 hours so as to allow the maintenance personnel to discover the condition at the first time and facilitate the process of later accidents; and moreover, the power cable anti-theft alarm system directly employs the cable line with no need for an extra communication line, and is convenient for installation, saved in energy and reliable, and low in maintenance cost.
Description
Technical field
The present invention relates to power cable burglar alarm field, particularly relate to a kind of power cable and prevent
Steal warning system.
Background technology
In power system, inevitably need to use cable to carry out power transmission.Street lamp shines
Bright is i.e. requisite communal facility in daily life, and street lighting line cord is the most stolen,
Normal illumination can be affected, bring inconvenience to the life of people, upset normal orders of life.
The method preventing cable stolen at present mainly has three kinds: one to be to use power cable line
The mode of unfixed point joints cement；Two is the mode using detection of electrical leakage；Three is at power circuit
End installs communication apparatus additional, such as radio set or telephone line etc..But, the first
Mode brings inconvenience to the work of later stage cable maintenance, adds workload and fund is thrown
Entering, maintenance cost is high, and cable is once by broken words, and attendant is difficult to very first time discovery again,
It is unfavorable for the process of later stage accident；The second way is to install an artificial leakage additional at line end
Electric installation, there is potential safety hazard in it, and detection of electrical leakage needs initial electrical leakage, due to by sky
The impact of the factor such as gas and aging circuit, initial electrical leakage is difficult to confirm exactly, and can not be real
Existing public lighting circuit detection under electroless state；The third mode can only have power frequency at public lighting circuit
Anti-theft protection just can be carried out, it is impossible to 24 hours round-the-clock carries out anti-theft protection in the case of power supply.
Therefore, how to realize power cable line is carried out round-the-clock anti-theft protection, and safeguard
Cost is relatively low, is that those skilled in the art are presently required and solve the technical problem that.
Summary of the invention
It is an object of the invention to provide a kind of Stealing-proof Alarming System for Power Cable, it is possible to realize electricity
Power cable run carries out round-the-clock anti-theft protection, and maintenance cost is relatively low.
For solving above-mentioned technical problem, the technical scheme is that
A kind of Stealing-proof Alarming System for Power Cable, including: it is arranged on the master on default cable run
Control device, from controlling device and the low-tension supply of preset voltage value,
Wherein, described low-tension supply is in disconnected for the power frequency supply at described default cable run
It is that described default cable run is powered during open state；
Described main control unit is positioned at the control end of described default cable run, is used for receiving described
From controlling the detection signal that device sends, judge described default cable according to described detection signal
Whether road interrupts；
The described end being positioned at described default cable run from control device, for by described electricity
Main control unit described in cable road direction sends detection signal.
Preferably, described from control device include: signal generator and carrier generator,
Wherein, described signal generator supplies for being in described low-tension supply at described cable run
During electricity condition, according to default time interval unidirectional send to described main control unit carry pre-
If first coding electric impulse signal；
Described carrier generator is used for when described cable run is in power frequency supply power supply state,
Receive, by described cable run, the carrier signal that described main control unit sends, and judging institute
State carrier signal when meeting the second default coding rule, send feedback to described main control unit
Carrier signal.
Preferably, described main control unit includes: master controller, relay portion and centralized Control
Device,
Wherein, described master controller is for communicating from control device with described, and judges institute
State the on off operating mode of cable run, and the result of determination signal of the on off operating mode of cable run is sent out
Deliver to described Centralized Controller；
Described relay portion is for controlling the break-make of described power frequency supply, and controls described power frequency
Power supply and the switching of described low-tension supply；
Described Centralized Controller is used for receiving described result of determination signal, and and extraneous monitoring in
The heart communicates.
Preferably, described main control unit also includes:
Loop control unit, for receiving the first control signal of described Centralized Controller, and according to
Described first control signal controls described relay portion to control the break-make of described power frequency supply.
Preferably, described relay portion includes: A.C. contactor and auxiliary reclay,
Described A.C. contactor, for receiving the control signal of described loop control unit, controls described
The break-make of power frequency supply；
Described auxiliary reclay, for receiving the control signal of described master controller, controls described work
Frequency power and the switching of described low-tension supply；
Wherein, described A.C. contactor and the interlocking of described auxiliary reclay relation.
Preferably, described Centralized Controller passes through GPRS network and the Surveillance center in the described external world
Communicate.
Preferably, described Centralized Controller includes alarm module, and described alarm module is in institute
State the result of determination signal of main controller when being described cable run cut-off signal, to the described external world
Surveillance center sends alarm signal.
Preferably, described low-tension supply is AC24V power module.
Compared with prior art, technique scheme has the advantage that
Stealing-proof Alarming System for Power Cable provided by the present invention, including: it is arranged on default cable
Main control unit on circuit, from controlling device and the low-tension supply of preset voltage value, wherein,
Low-tension supply is for when the power frequency supply of default cable run is off being default cable
Line powering；Main control unit is positioned at the control end of default cable run, for receiving from control
The detection signal that device sends, judges to preset whether cable run interrupts according to detection signal；From
Control device and be positioned at the end of default cable run, be used for by cable run to main control unit
Send detection signal.The control end of cable run and end be respectively provided with main control unit and from
Control device, by detecting this electricity from the signal of communication controlled between device and main control unit
Whether cable road disconnects, to judge that cable is the most stolen.At the power frequency supply on cable run
When off-state, low-tension supply is powered to whole system, to ensure that whole day is prevented for 24 hours
Stealing monitoring, once cable is stolen, and main control unit can detect so that attendant can
The very first time finds, in order to the process of later stage accident, and native system directly utilizes cable run
And without extra communication line, easy for installation, energy-conservation reliably, maintenance cost is relatively low.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is some embodiments of the present invention, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
The Stealing-proof Alarming System for Power Cable that Fig. 1 is provided by a kind of detailed description of the invention of the present invention
Structural representation；
Fig. 2 is that Stealing-proof Alarming System for Power Cable provided by the present invention is at AC24V power supply mould
A kind of coded method when block is powered；
Fig. 3 is provided by another kind detailed description of the invention of the present invention power cable burglar alarm system
System structural representation.
Detailed description of the invention
The core of the present invention is to provide a kind of Stealing-proof Alarming System for Power Cable, it is possible to realize electricity
Power cable run carries out round-the-clock anti-theft protection, and maintenance cost is relatively low.
Understandable in order to enable the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below
In conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.
Elaborate detail in the following description so that fully understanding the present invention.But this
Bright can be different from alternate manner described here implement with multiple, those skilled in the art can
To do similar popularization in the case of intension of the present invention.Therefore the present invention is not by following public affairs
The restriction of the detailed description of the invention opened.
Refer to the power cable that Fig. 1, Fig. 1 are provided by a kind of detailed description of the invention of the present invention
Guard against theft and alarm system structural representation.
One embodiment of the present invention provides a kind of Stealing-proof Alarming System for Power Cable, bag
Include: the main control unit 1 that is arranged on default cable run, from controlling device 2 and presetting electricity
The low-tension supply of pressure value, the most preferably this low-tension supply are AC24V power supply mould
Block, AC24V power module can be AC24V transformator, i.e. this low-tension supply provides 24V
Alternating voltage.Wherein, low-tension supply is in disconnection for the power frequency supply at default cable run
Power for default cable run during state；Main control unit 1 is positioned at the control of default cable run
End, for receiving from controlling the detection signal that device 2 sends, judges to preset according to detection signal
Whether cable run interrupts；It is positioned at the end of default cable run from control device 2, is used for leading to
Cross cable run and send detection signal to main control unit.
In the present embodiment, as a example by public lighting circuit, time by day without street lighting,
Power frequency supply on public lighting circuit is closed, and is i.e. in without power frequency supply power supply state,
Now low-tension supply is that whole Stealing-proof Alarming System for Power Cable is powered, will low-tension supply switching
To public lighting circuit, the relevant device such as controller for road lamp and street lamp need not work, will not set
Itself power consumption standby, to reach energy-conservation effect.When needs street lighting, now power frequency electric
Source is whole public lighting circuit, and Stealing-proof Alarming System for Power Cable is powered, and now, closes
Close low-tension supply, to ensure Electrical Safety.Main control unit passes through cable run (public lighting circuit
Cable) receive from control device send detection signal, if cable is stolen, will necessarily cause
Cable cut, then main control unit now can not receive from controlling the inspection preset that device sends
Survey signal, then by main control unit, attendant can learn that cable is stolen, thus carries out
The process of later stage accident.Therefore, by when cable run is powered without power frequency supply, introduce low
Voltage source, to ensure that Stealing-proof Alarming System for Power Cable whole day carries out anti-thefting monitoring for 24 hours, one
Denier cable is stolen, and main control unit can detect so that attendant can send out the very first time
Existing.Native system directly utilize cable run and without extra communication line, easy for installation, joint
Can be reliable, maintenance cost is relatively low.
On the basis of above-mentioned embodiment, in one embodiment of the present invention, from controlling device
Including: signal generator and carrier generator, wherein, signal generator is at cable run
When being in low-tension supply power supply state, send out to main control unit according to default time interval is unidirectional
Send the electric impulse signal carrying the first default coding.When low-tension supply is that cable run is powered
Time, trigger signal generator form with coding set in advance at a certain time interval sends
Electric impulse signal (now carrier generator does not works), carries out coupling modulation by this electric impulse signal
On cable run, exporting to main control unit through the cable of cable run, main control unit is real
Time receive the signal on cable run, receiving on cable after the signal of conveying, at electricity
After the technology such as reason, demodulation and decoding process, it is judged that whether the signal received meets in advance
The coded system set, as in figure 2 it is shown, Fig. 2 is that power cable provided by the present invention is antitheft
The warning system a kind of coded method when AC24V power module is powered, by using
The digital signal order of 0/1, through electric treatment, is converted into the analogue signal of correspondence and is coupled to
In electrical network, to propagate, i.e. judge whether this signal is carrying of signal generator transmission
The electric impulse signal of the first coding, if meeting, then judges that cable does not interrupts；If n time receives
Signal do not comply with the coded system of agreement, decide that cable interrupts, wherein, n is not
Integer less than 1, and preferably n more than 1 to avoid owing to the impact of some objective factor causes
Electric impulse signal sudden change and cause main control unit to judge by accident.
Carrier generator, for when cable run is in power frequency supply power supply state, passes through cable
The carrier signal that line receiver main control unit sends, and judging that carrier signal meets default
During the second coding rule, send feedback carrier signal to main control unit.When power frequency supply is carried out
During power supply, triggering carrier generator and be operated, now signal generator quits work, simultaneously
Main control unit enters and actively sends carrier signal pattern, and main control unit is sent out by cable run
Send carrier signal, when after the signal receiving cable run from control device, through decoding etc.
Reason, when this signal meets default carrier wave coding rule (the second coding rule), to master control
Device processed sends feedback carrier signal, and the feedback signal received is decoded by main control unit
After processing, it is judged that whether this feedback signal meets and the coding rule of carrier generator agreement,
If meeting, then judge that cable does not interrupts；If the signal received for m time does not complys with the volume of agreement
Code mode, decides that cable interrupts, and wherein, m is the integer not less than 1, and preferably m
More than 1 to avoid the feedback carrier signal sudden change caused due to the impact of some objective factor to make
Become main control unit erroneous judgement.
Refer to the electric power electricity that Fig. 3, Fig. 3 are provided by another kind detailed description of the invention of the present invention
Cable guard against theft and alarm system structural representation.
In one embodiment of the invention, main control unit 1 includes: master controller 11,
Relay portion 12 and Centralized Controller 13, wherein, master controller 11 is used for and from controlling device
2 communicate, and judge the on off operating mode of cable run, and by the on off operating mode of cable run
Result of determination signal send to Centralized Controller 13；Relay portion 12 is used for controlling power frequency electric
The break-make in source, and control power frequency supply and the switching of low-tension supply；Centralized Controller 13 is used for
Receive result of determination signal, and communicate with extraneous Surveillance center, preferably Centralized Controller
Communicated by GPRS network and extraneous Surveillance center, wherein, preferably Centralized Controller
RS485 (intelligence instrument) is used to carry out connected network communication with corresponding communication component.Further,
Main control unit 1 also includes: loop control unit 14, for receiving the of Centralized Controller 13
One control signal, and control relay portion 12 to control power frequency supply according to the first control signal
Break-make.
Wherein, relay portion 12 includes: A.C. contactor 121 and auxiliary reclay 122, hands over
Stream catalyst 121, for receiving the control signal of loop control unit 14, controls the logical of power frequency supply
Disconnected；Auxiliary reclay 122, for receiving the control signal of master controller 11, controls power frequency supply
Switching with low-tension supply；Wherein, A.C. contactor 121 and auxiliary reclay 122 interlock.
Present embodiment still illustrates as a example by public lighting circuit, and wherein main control unit is preferred
It is arranged in the control chamber of street lamp, and is preferably mounted at last of public lighting circuit from controlling device
Individual lamp stand.
In the present embodiment, main control unit includes auxiliary reclay, A.C. contactor, returns
Road controller, Centralized Controller and master controller, auxiliary reclay main controller controls, in
Between the normal-closed end of the normal-closed end of relay and A.C. contactor form relation interlocking.Due at this
In bright embodiment, power frequency supply and low-tension supply switch use in cable run, in order to
Guarantee the Electrical Safety of cable run, utilize A.C. contactor and auxiliary reclay normal-closed end and
Normally opened end, makes auxiliary reclay and A.C. contactor form relation interlocking, it is ensured that in cable run
It is powered at a kind of power supply of synchronization, to ensure the Electrical Safety of circuit-line, and
Circuit can be made to reach energy-conservation effect, when power frequency supply is not powered, on circuit
A little equipment can not work, it is possible to saves the power consumption of equipment itself, reaches energy-conservation effect.
In the present embodiment, when powering without power frequency supply, loop control unit receives concentration
After control order, control A.C. contactor, cut off the power frequency supply on cable run, exchange
Catalyst normal-closed end closes, and normally opened end disconnects.Now, auxiliary reclay control end connects with exchanging
The normal-closed end physical link connection of tentaculum, main controller controls auxiliary reclay, auxiliary reclay
Normally opened end closes, and normal-closed end disconnects, and control low-tension supply is cut and delivered to cable run.Now, hand over
Stream catalyst controls the physical link of end and disconnects, and A.C. contactor and auxiliary reclay form interlocking.
The signal generator that low-tension supply triggers from controlling device is started working, and carrier generator stops work
Making, master controller enters and passively receives signal mode simultaneously, and according in above-mentioned embodiment
Cable run detection process is operated.
When needs power frequency supply is powered, main controller controls auxiliary reclay, auxiliary reclay
Normal-closed end closes, and normally opened end disconnects, and cuts off the low-tension supply on cable run, and now exchange connects
Tentaculum controls the physical link connection of end, and Centralized Controller sends order, it is desirable to loop control unit
Controlling A.C. contactor, the normally opened end of A.C. contactor closes, and normal-closed end disconnects, and power frequency supply is cut
Deliver to public lighting circuit.Now auxiliary reclay controls the disconnection of end link, A.C. contactor and centre
Relay forms again interlocking.Power frequency supply triggers carrier generator and starts working, signal generator
Quitting work, main control unit enters and actively sends carrier signal pattern simultaneously, and according to above-mentioned
Cable run detection process in embodiment is operated.
In one embodiment of the invention, in order to make attendant's very first time find cable
Stolen accident, preferably Centralized Controller include alarm module, and alarm module is at main controller
When result of determination signal is cable run cut-off signal, Surveillance center outwardly sends alarm signal
Number.When main control unit judges that cable is stolen, can be by GPRS by signal real-time report
To Surveillance center, report to the police.
In sum, Stealing-proof Alarming System for Power Cable provided by the present invention, make use of itself
For the cable of good communications carrier, cable run introduces low-tension supply, in power frequency electric
When source does not works, use low-tension supply to be powered, and be provided with power frequency supply and low-tension supply
Secure handoff mechanism, in synchronization cable run, only a kind of power supply is powered, it is achieved that
The Electrical Safety of cable run；Achieve to cable run 24 hours round-the-clock anti-thefting monitorings,
Use carrier generator and main control unit with power line carrier communication side when power frequency supply works
Formula carries out two-way communication, carries out data interaction to realize anti-thefting monitoring, and powers in low-tension supply
Time, use signal generator unidirectional to main control with the form of pre-arranged code at a time interval
Device sends signal and carries out anti-thefting monitoring, and both effective real-time report cable running status, prevented
Steal monitoring, the energy-conservation of cable run can be realized again；And the device knot in the system of present invention offer
Structure is simple, easy for installation, and strong adaptability is safe and reliable, and is susceptible to the impact of peripheral environment.
Above a kind of Stealing-proof Alarming System for Power Cable provided by the present invention is carried out in detail
Introduce.Principle and the embodiment of the present invention are set forth by specific case used herein,
The explanation of above example is only intended to help and understands the present invention and core concept thereof.It should be pointed out that,
For those skilled in the art, under the premise without departing from the principles of the invention,
The present invention can also be carried out some improvement and modification, these improve and modification also falls into the present invention
In scope of the claims.
Claims (8)
1. a Stealing-proof Alarming System for Power Cable, it is characterised in that including: be arranged on pre-
If the main control unit on cable run, from controlling device and the low-tension supply of preset voltage value,
Wherein, described low-tension supply is in disconnected for the power frequency supply at described default cable run
It is that described default cable run is powered during open state；
Described main control unit is positioned at the control end of described default cable run, is used for receiving described
From controlling the detection signal that device sends, judge described default cable according to described detection signal
Whether road interrupts；
The described end being positioned at described default cable run from control device, for by described electricity
Main control unit described in cable road direction sends detection signal.
System the most according to claim 1, it is characterised in that described from controlling device
Including: signal generator and carrier generator,
Wherein, described signal generator supplies for being in described low-tension supply at described cable run
During electricity condition, according to default time interval unidirectional send to described main control unit carry pre-
If first coding electric impulse signal；
Described carrier generator is used for when described cable run is in power frequency supply power supply state,
Receive, by described cable run, the carrier signal that described main control unit sends, and judging institute
State carrier signal when meeting the second default coding rule, send feedback to described main control unit
Carrier signal.
System the most according to claim 2, it is characterised in that described main control unit
Including: master controller, relay portion and Centralized Controller,
Wherein, described master controller is for communicating from control device with described, and judges institute
State the on off operating mode of cable run, and the result of determination signal of the on off operating mode of cable run is sent out
Deliver to described Centralized Controller；
Described relay portion is for controlling the break-make of described power frequency supply, and controls described power frequency
Power supply and the switching of described low-tension supply；
Described Centralized Controller is used for receiving described result of determination signal, and and extraneous monitoring in
The heart communicates.
System the most according to claim 3, it is characterised in that described main control unit
Also include:
Loop control unit, for receiving the first control signal of described Centralized Controller, and according to
Described first control signal controls described relay portion to control the break-make of described power frequency supply.
System the most according to claim 4, it is characterised in that described relay portion bag
Include: A.C. contactor and auxiliary reclay,
Described A.C. contactor, for receiving the control signal of described loop control unit, controls described
The break-make of power frequency supply；
Described auxiliary reclay, for receiving the control signal of described master controller, controls described work
Frequency power and the switching of described low-tension supply；
Wherein, described A.C. contactor and the interlocking of described auxiliary reclay relation.
System the most according to claim 3, it is characterised in that described Centralized Controller
Communicated by the Surveillance center of GPRS network and the described external world.
System the most according to claim 6, it is characterised in that described Centralized Controller
Including alarm module, described alarm module is institute for the result of determination signal at described main controller
When stating cable run cut-off signal, the Surveillance center to the described external world sends alarm signal.
8. according to the system described in any one of claim 1 to 7, it is characterised in that described
Low-tension supply is AC24V power module.
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| CN201610256950.XA CN105844830B (en) | 2016-04-22 | 2016-04-22 | A kind of Stealing-proof Alarming System for Power Cable |
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| CN201610256950.XA CN105844830B (en) | 2016-04-22 | 2016-04-22 | A kind of Stealing-proof Alarming System for Power Cable |
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| CN108152648A (en) * | 2017-12-19 | 2018-06-12 | 四川九洲电器集团有限责任公司 | It is a kind of to have electricity and without the cable disconnecting warning device under electric situation |
| CN108152648B (en) * | 2017-12-19 | 2020-04-07 | 四川九洲电器集团有限责任公司 | Cable disconnection alarm device under power on and power off conditions |
| CN110224403A (en) * | 2019-06-24 | 2019-09-10 | 广州华铭电力科技有限公司 | A kind of dual power supply family table is to line method, apparatus and system |
| CN110224403B (en) * | 2019-06-24 | 2023-08-01 | 广州华铭电力科技有限公司 | Dual-power household meter alignment method, device and system |
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| CN105844830B (en) | 2018-07-13 |
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Denomination of invention: A power cable anti theft alarm system Effective date of registration: 20210128 Granted publication date: 20180713 Pledgee: Hangzhou United Rural Commercial Bank Co.,Ltd. Xixing sub branch Pledgor: INFOSTRONG (R) TECHNOLOGY Co.,Ltd. Registration number: Y2021330000092 |
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