CN208848337U - A kind of highway power cable anti-theft alarm device - Google Patents

Abstract

The utility model relates to a kind of highway power cable anti-theft alarm devices.Including the anti theft host and anti-theft alarm terminal successively connecting with power cable along power cable power transmission direction, the anti-theft alarm terminal includes that whether there is or not electric switching modules, the first power supply module, wireless communication module for first singlechip module and the antitheft detection module of power cable connecting with the first singlechip module, the first power cable；The anti theft host includes that whether there is or not electric switching modules, the second source power supply module for powering for entire anti theft host for second singlechip module and the antitheft detectable voltage signals transmitting module connecting with the second singlechip module, the second power cable.The utility model circuit structure is simple, easy for installation, can be realized the wireless transmission of alarm signal, improves the accuracy of power cable burglar alarm, and alarms in time, in addition the utility model can whole day whenever, work normally under any environment.

Description

A kind of highway power cable anti-theft alarm device

Technical field

The utility model relates to a kind of highway power cable anti-theft alarm devices.

Background technique

Existing highway Stealing-proof Alarming System for Power Cable mainly uses PLC technology at home at present, and traditional Carrier technology be applied to highway tunnel street lamp and monitoring device low-voltage power supply operating condition under have the following problems: it is traditional Technological means is to realize cable detection using carrier technology, due to freeway tunnel street lamp and monitoring device category low-voltage circuit, And route is embedded in underground, and line-hit is stronger, and certain technical indicators have certain difference with when becoming a fine day in the moist and rainy day, according to Experience and engineering experiment in terms of product development prove: carrier transmission technique is difficult to protect in the reliability of the antitheft aspect of road lighting cable Card, and higher cost.

The application proposes a kind of a power cable anti-theft journal developed for the protection of highway power cable thus The features such as alert product, having alarm, accuracy rate is high in time, easy for installation, can whole day whenever, under any environment it is normal Work has abandoned conventional carrier detection in cable end piece and has increased the unstable factor of active signal generator bring, fundamentally Solve that cable theft-prevention is steady in a long-term and integrity problem.It is big to can be widely applied for highway, municipal road lamp, industrial factories and miness etc. Part electricity utilization site.

Summary of the invention

The purpose of this utility model is to provide a kind of highway power cable anti-theft alarm device, have alarm and When, accuracy rate is high, it is easy for installation the features such as, can whole day whenever, work normally under any environment, abandoned traditional load Wave detection increases the unstable factor of active signal generator bring in cable end piece, and it is long-term fundamentally to solve cable theft-prevention Stable and integrity problem.

To achieve the above object, the technical solution of the utility model is: a kind of highway power cable burglar alarm dress It sets, it is described including the anti theft host and anti-theft alarm terminal successively being connect with power cable along power cable power transmission direction Anti-theft alarm terminal include first singlechip module and the antitheft detection module of power cable being connect with the first singlechip module, First power cable whether there is or not electric switching module, the first power supply module for powering for entire anti-theft alarm terminal, be used for Realize the wireless communication module that first singlechip module and host computer carry out wireless communication；The anti theft host includes the second monolithic Machine module and the antitheft detectable voltage signals transmitting module connecting with the second singlechip module, whether there is or not cutting for the second power cable Change the mold block, the second source power supply module for powering for entire anti theft host.

In an embodiment of the utility model, the antitheft detection module of the power cable includes that power cable has the antitheft inspection of electricity Module, power cable are surveyed without the antitheft detection module of electricity；It includes the first rectifier bridge that the power cable, which has the antitheft detection module of electricity, the One photoisolator, resistance R2, R3, R4；Two input terminals of the first rectifier bridge are connect with the zero of power cable, firewire respectively, and First output end of one rectifier bridge is connect through R3 with the first input end of the first photoisolator, the second output of the first rectifier bridge End is connect through R4 with the second input terminal of the first photoisolator, and the first output end of the first photoisolator is through R2 and+3.3V End connection, the first output end of the first photoisolator are also connect with the first input end of first singlechip module, the first photoelectricity The second output terminal of isolator is connected to GND；The power cable includes insuring resistance F1 without the antitheft detection module of electricity, and first Relay, the second relay, diode D1, D2, resistance R1；One end of F1, first the first normal open switch of relay one end with The zero curve of power cable connects, and the other end of F1 is through the one of the second relay control coil and first the second normal open switch of relay The firewire connection at end, power cable, the other end of first the first normal open switch of relay is through second the first normally closed switch of relay It is connect with the cathode of D2, the other end of first the second normal open switch of relay is through the sun of the second relay the second normally closed switch and D1 Pole connection, the cathode of D1 through the anode of R1 and D2, GND connection, the cathode of D1 also with the second input terminal of first singlechip module Connection.

In an embodiment of the utility model, first power cable includes triode Q1 whether there is or not electric switching module, electricity R5, R6 are hindered, the collector of Q1 is connected to the end+5V through the first relay control coil, and the emitter of Q1 is connected with one end of R6 To GND, the base stage of Q1 is connected with one end of the other end of R6, R5, the other end of R5 and an output of first singlechip module End connection.

In an embodiment of the utility model, the antitheft detectable voltage signals transmitting module includes the second rectifier bridge, the Three rectifier bridges, diode D11, D12, D13, D14, the 4th relay, the 5th relay, insurance resistance F2, resistance R12, R13, R20, R22, R29, R30, the second photoisolator, voltage conversion chip LM317AJ；One end of F2, the 4th relay first are often The zero curve of one end of switch, the first input end of the second rectifier bridge and power cable connects, and the other end of F2 is through the 5th relay One end of device control coil and the 4th the second normal open switch of relay, the second input terminal of the second rectifier bridge, power cable fire Line connection, the first output end of the second rectifier bridge are connect through R12 with the first input end of the second photoisolator, the second rectifier bridge Second output terminal connect through R13 with the second input terminal of the second photoisolator, the first output end of the second photoisolator Be connected to the end+5V through R22, the first output end of the second photoisolator is also connect with second singlechip module, the second photoelectricity every Second output terminal from device is connected to GND, and the other end of the 4th the first normal open switch of relay is normal through the 5th relay first Make and break pass is connect with the anode of D14, and the other end of the 4th the second normal open switch of relay is through the 5th the second normally closed switch of relay Connect with the cathode of D13, one end of the anode of D13 and R30, the first output end of third rectifier bridge connect, the other end of R30 with One end of the second output terminal connection of the cathode of D14, third rectifier bridge, the first input end of third rectifier bridge and R20, The OUT pin of LM317AJ connects, and the second input terminal of third rectifier bridge is connected with one end of R29 is connected to GND, LM317AJ's The cathode of the other end connection of the other end of ADJ pin and R20, R29, the IN pin of LM317AJ and D11, the cathode of D12 connect It connects, the anode of D11 is connected to GND, and the anode of D12 is connected to the end+24V.

In an embodiment of the utility model, second power cable includes triode Q5 whether there is or not electric switching module, electricity R32, R33 are hindered, the collector of Q5 is connected to the cathode of+D12 through the 4th relay control coil, and the one of the emitter of Q5 and R33 End, which is connected, is connected to GND, and the base stage of Q5 is connected with one end of the other end of R33, R32, the other end and second singlechip mould of R32 One output end of block connects.

In an embodiment of the utility model, first power supply module include the first AC220V turn DC24V module, First 24V turns 5V module, 5V turns 3.3V module and power supply switching module；The second source power supply module includes second AC220V turns DC24V module, the 2nd 24V turns 5V module.

In an embodiment of the utility model, the first AC220V turns DC24V module by transformer for AC220V turns It is changed to DC24V, the transformer uses EI48；2nd AC220V turns the circuit structure and the first AC220V of DC24V module The circuit structure for turning DC24V module is identical.

In an embodiment of the utility model, it includes voltage conversion chip LM1117-5 that the first 24V, which turns 5V module, and two Pole pipe D5, D6, D8, capacitor C9, C10, resistance R14, R17；First AC220V turn DC24V module output+24V through D6, R17 with The cathode connection of the IN pin of LM1117-5, D5, the GND pin and the anode of D5 of LM1117-5, one end of C9, C10 one end It is connected and is connected to GND, the anode connection of the OUT pin of LM1117-5, the other end of PAD pin and C9, the other end of C10, D8, and As the end+5V, the cathode of D8 is connected to GND through R14；2nd 24V turns the circuit structure of 5V module and the first 24V turns 5V module Circuit structure is identical.

In an embodiment of the utility model, it includes resistance R9, R15 that the 5V, which turns 3.3V module, capacitor C12, C13, C14, voltage conversion chip LM1117-3.3, third relay and 5V battery；First 24V turns the+5V and C12 of 5V module output One end, one end of C13, one end of R15, the IN pin of LM1117-3.3, third relay normally closed switch one end connection, The other end of R15 is connected to GND through R9, and the other end of R15 is also connect with the third input terminal of first singlechip module, third after The anode of the other end of electric appliance normally closed switch and 5V battery is connect, the other end of the cathode of 5V battery and C12, C13 the other end, The GND pin of LM1117-3.3, C14 one end be connected and be connected to GND, the OUT pin of LM1117-3.3, PAD pin and C14 it is another One end connection, and the end conduct+3.3V.

In an embodiment of the utility model, the power supply switching module includes triode Q2, resistance R10, R11, Q2's Collector is connected to the end+5V that the first 24V turns the output of 5V module through third relay control coil, the emitter of Q2 and R11's One end, which is connected, is connected to GND, and the base stage of Q2 is connected with one end of the other end of R11, R10, the other end and first singlechip of R10 Another output end of module connects.

Compared to the prior art, the utility model has the following beneficial effects: the utility model has alarm in time, accurately The features such as rate is high, easy for installation, can whole day whenever, work normally under any environment, abandoned conventional carrier detection Cable end piece increase the unstable factor of active signal generator bring, fundamentally solve cable theft-prevention steadily in the long term and Integrity problem.

Detailed description of the invention

Fig. 1 is the functional block diagram of the utility model highway power cable anti-theft alarm device.

Fig. 2 is the utility model first singlechip module circuit schematic.

Fig. 3 is the antitheft detection module circuit diagram of the utility model power cable.

Fig. 4 is that whether there is or not electric switching module circuit diagrams for the first power cable of the utility model.

Fig. 5 is the utility model second singlechip module circuit schematic

Fig. 6 is that whether there is or not electric switching module electricity for the antitheft detectable voltage signals transmitting module of the utility model and the second power cable Road schematic diagram.

Fig. 7 is that the utility model first/second AC220V turns DC24V module circuit schematic.

Fig. 8 is that the utility model first/second 24V turns 5V module circuit schematic.

Fig. 9 is that the utility model 5V turns 3.3V module circuit schematic.

Figure 10 is the utility model power supply switching module circuit diagram.

Figure 11 is the utility model wireless communication module circuit diagram.

Specific embodiment

The technical solution of the utility model is specifically described in 1-11 with reference to the accompanying drawing.

The utility model provides a kind of highway power cable anti-theft alarm device, including passes along power cable electric power The anti theft host and anti-theft alarm terminal that defeated direction is successively connect with power cable, the anti-theft alarm terminal include the first monolithic Whether there is or not cutting mold changings for machine module and the antitheft detection module of power cable connecting with the first singlechip module, the first power cable Block, the first power supply module for powering for entire anti-theft alarm terminal, for realizing first singlechip module with it is upper The wireless communication module (using GPRS wireless communication module) that machine carries out wireless communication；The anti theft host includes second singlechip Module and the antitheft detectable voltage signals transmitting module connecting with the second singlechip module, whether there is or not cutting to change for the second power cable Module, the second source power supply module for powering for entire anti theft host.

The antitheft detection module of power cable includes that power cable has the antitheft detection module of electricity, power cable antitheft without electricity Detection module；It includes the first rectifier bridge that the power cable, which has the antitheft detection module of electricity, the first photoisolator, resistance R2, R3, R4；Two input terminals of the first rectifier bridge are connect with the zero of power cable, firewire respectively, and the first output end of the first rectifier bridge is through R3 It is connect with the first input end of the first photoisolator, the second output terminal of the first rectifier bridge is through R4 and the first photoisolator The connection of second input terminal, the first output end of the first photoisolator connect through R2 with the end+3.3V, and the of the first photoisolator One output end is also connect with the first input end of first singlechip module, and the second output terminal of the first photoisolator is connected to GND；The power cable includes insurance resistance F1, the first relay, the second relay, diode without the antitheft detection module of electricity D1, D2, resistance R1；The zero curve of one end of F1, one end of first the first normal open switch of relay and power cable connects, and F1's is another The second relay control coil of one end is connect with the firewire of one end of first the second normal open switch of relay, power cable, the The other end of one the first normal open switch of relay is connected through the cathode of second the first normally closed switch of relay and D2, the first relay The other end of second normal open switch is connected through the anode of second the second normally closed switch of relay and D1, and the cathode of D1 is through R1's and D2 Anode, GND connection, the cathode of D1 are also connect with the second input terminal of first singlechip module.First power cable whether there is or not Electric switching module includes triode Q1, resistance R5, R6, and the collector of Q1 is connected to the end+5V, Q1 through the first relay control coil Emitter be connected with one end of R6 and be connected to GND, the base stage of Q1 is connected with one end of the other end of R6, R5, the other end of R5 It is connect with an output end of first singlechip module.

The antitheft detectable voltage signals transmitting module include the second rectifier bridge, third rectifier bridge, diode D11, D12, D13, D14, the 4th relay, the 5th relay insure resistance F2, resistance R12, R13, R20, R22, R29, R30, the second photoelectricity Isolator, voltage conversion chip LM317AJ；One end of F2, one end of the 4th the first normal open switch of relay, the second rectifier bridge The connection of the zero curve of first input end and power cable, the other end of F2 is through the 5th relay control coil and the 4th relay second The firewire connection of one end of normal open switch, the second input terminal of the second rectifier bridge, power cable, the first output of the second rectifier bridge End is connect through R12 with the first input end of the second photoisolator, and the second output terminal of the second rectifier bridge is through R13 and the second photoelectricity Second input terminal of isolator connects, and the first output end of the second photoisolator is connected to the end+5V through R22, the second photoelectricity every The first output end from device is also connect with second singlechip module, and the second output terminal of the second photoisolator is connected to GND, The other end of 4th the first normal open switch of relay through the anode of the 5th the first normally closed switch of relay and D14 connect, the 4th after The other end of the second normal open switch of electric appliance through the cathode of the 5th the second normally closed switch of relay and D13 connect, the anode of D13 with The second of the cathode of the first output end connection of one end of R30, third rectifier bridge, the other end of R30 and D14, third rectifier bridge Output end connection, the OUT pin connection of one end, LM317AJ of the first input end and R20 of third rectifier bridge, third rectifier bridge The second input terminal be connected with one end of R29 and be connected to GND, the other end of the other end of the ADJ pin of LM317AJ and R20, R29 Connection, the cathode connection of the cathode, D12 of the IN pin and D11 of LM317AJ, the anode of D11 are connected to GND, and the anode of D12 connects It is connected to the end+24V.Second power cable includes triode Q5, resistance R32, R33, the collector of Q5 whether there is or not electric switching module The cathode of+D12 is connected to through the 4th relay control coil, the emitter of Q5 is connected with one end of R33 is connected to GND, the base of Q5 Pole is connected with one end of the other end of R33, R32, and the other end of R32 is connect with an output end of second singlechip module.

First power supply module includes that the first AC220V turns DC24V module, the first 24V turns 5V module, 5V turns 3.3V module and power supply switching module；The second source power supply module includes that the 2nd AC220V turns DC24V module, second 24V turns 5V module.First AC220V turns DC24V module and AC220V is converted to DC24V, the transformer by transformer Using EI48；2nd AC220V turns the circuit structure of DC24V module and the first AC220V turns the circuit structure of DC24V module It is identical.It includes voltage conversion chip LM1117-5, diode D5, D6, D8, capacitor C9, C10, electricity that first 24V, which turns 5V module, Hinder R14, R17；First AC220V turns the cathode of the IN pin of+24V through D6, R17 and LM1117-5 of DC24V module output, D5 Connection, the GND pin of LM1117-5 and the anode of D5, one end of C9, C10 one end be connected and be connected to GND, the OUT of LM1117-5 The anode connection of pin, the other end of PAD pin and C9, the other end of C10, D8, and the end conduct+5V, the cathode of D8 connect through R14 It is connected to GND；2nd 24V turn the circuit structure of 5V module and the first 24V to turn the circuit structure of 5V module identical.The 5V turns 3.3V Module includes resistance R9, R15, capacitor C12, C13, C14, and voltage conversion chip LM1117-3.3, third relay and 5V are electric Pond；First 24V turn 5V module output+5V and one end of C12, one end of C13, one end of R15, LM1117-3.3 IN draw One end connection of foot, third relay normally closed switch, the other end of R15 are connected to GND through R9, and the other end of R15 is also with first The third input terminal of one-chip computer module connects, and the other end of third relay normally closed switch is connect with the anode of 5V battery, 5V electricity The cathode in pond and the other end of C12, the other end of C13, the GND pin of LM1117-3.3, C14 one end be connected and be connected to GND, The other end connection of the OUT pin, PAD pin and C14 of LM1117-3.3, and the end conduct+3.3V.The power supply switching module packet Include triode Q2, the collector of resistance R10, R11, Q2 through third relay control coil is connected to the first 24V, and to turn 5V module defeated The end+5V out, the emitter of Q2 is connected with one end of R11 is connected to GND, base stage and the other end of R11, one end phase of R10 of Q2 Connection, the other end of R10 are connect with another output end of first singlechip module.

The first singlechip module includes first singlechip and the first singlechip connecting with first singlechip periphery Circuit, the first singlechip peripheral circuit include the crystal oscillating circuit, reset circuit, start-up circuit connecting with first singlechip, The first singlechip uses STM32F103C8T6；The second singlechip module includes second singlechip and second single with this The second singlechip peripheral circuit of piece machine connection, the second singlechip peripheral circuit includes the crystal oscillator connecting with second singlechip Circuit, reset circuit, the second singlechip use SH79F083AM.

The following are the working principles of the highway power cable anti-theft alarm device of the utility model:

Highway power cable, the especially power cable of highway street lamp power supply, road lamp power supply, general daytime, evening was just without electricity It can power and highway street lamp can be illuminated, therefore the electricity of the highway power cable anti-theft alarm device of the utility model The detection of power cable theft-prevention includes following two situation:

(1) in the case of daytime, i.e., when power cable is without electricity:

Referring to attached drawing 5-8, anti theft host turns DC24V module by the 2nd AC220V by 220V in control room, the 2nd 24V turns 5V module exports 5V power supply, at this point, the single-chip microcontroller U3 of anti theft host can not pass through antitheft detection voltage since power cable is without electricity Signal emission module detects that the electric signal that power cable is incuded by photoisolator U4, single-chip microcontroller U3 control at triode Q5 In closed state, K1B obtains electric, so that K1A is in closed state, 220V turns DC24V module by the 2nd AC220V in control room Voltage conversion chip V1, third rectifier bridge, D13, K2A, K1A of the 24V of output by antitheft detectable voltage signals transmitting module It transmits on voltage signal to power cable, and is transferred to anti-theft alarm terminal through power cable；

Referring to attached drawing 2-4,11, anti-theft alarm terminal since power cable is without electricity, the single-chip microcontroller U1 of anti-theft alarm terminal without Method has the telecommunications of the photoisolator U2 induction of the antitheft detection module of electricity by the power cable of the antitheft detection module of power cable Number, anti-theft alarm terminal turns 3.3V module by 5V by 5V battery as anti-theft alarm terminal power supply, and single-chip microcontroller U1 controls Q1 closure, K4B obtain it is electric so that K4A be closed；

If at this point, anti theft host is transferred to the voltage signal energy of power cable by antitheft detectable voltage signals transmitting module Enough there is the antitheft detection module of electricity to be detected that then judgement is anti-by single-chip microcontroller U1 by the power cable of the antitheft detection module of power cable It steals host to the power cable between anti-theft alarm terminal not break, i.e., power cable is not stolen, and single-chip microcontroller U1 is by wireless communication Module sends normal signal to host computer；

And if at this point, anti theft host is transferred to the voltage signal of power cable by antitheft detectable voltage signals transmitting module There can not be the antitheft detection module of electricity to be detected by single-chip microcontroller U1 by the power cable of the antitheft detection module of power cable, then sentence Disconnected anti theft host to the power cable between anti-theft alarm terminal has disconnected, i.e., power cable there may be it is stolen situations such as, it is single Module sends alarm signal to host computer to piece machine U1 by wireless communication；

(2) in the case of evening, i.e., when power cable has electricity:

Referring to attached drawing 5-8, anti theft host turns DC24V module by the 2nd AC220V by 220V in control room, the 2nd 24V turns 5V module exports 5V power supply, at this point, the single-chip microcontroller U3 of anti theft host detects electricity by antitheft detectable voltage signals transmitting module The electric signal that power cable is incuded by photoisolator U4, single-chip microcontroller U3 control triode Q5 are in an off state, K1B power loss, So that K1A is in an off state, 220V can not be by anti-by the 24V that the 2nd AC220V turns the output of DC24V module in control room It steals on detectable voltage signals transmitting module transmission voltage signal to power cable；

Referring to attached drawing 2-4,7-11, if the single-chip microcontroller U1 of anti-theft alarm terminal can pass through the antitheft detection module of power cable Power cable have the antitheft detection module of electricity photoisolator U2 induction electric signal, then judge that power cable does not break, i.e., it is electric Power cable is not stolen, and module sends normal signal to host computer to single-chip microcontroller U1 by wireless communication, meanwhile, the 220V of power cable It is formed into a loop by F1, K3B, K3B obtains electric, so that K3A is disconnected, the 220V of power cable can not pass through the antitheft inspection of power cable The power cable for surveying module is transmitted to single-chip microcontroller U1 without the antitheft detection module of electricity, to prevent the 220V of power cable from causing monolithic Machine U1 damage, and single-chip microcontroller U1 control Q1 is disconnected, and K4B power loss, K4A is in an off state, and further prevents power cable 220V causes single-chip microcontroller U1 to damage, and in addition anti-theft alarm terminal turns DC24V mould by the first AC220V by the 220V of power cable Block, the first 24V turn 5V module, 5V turn 3.3V module output 5V, 3V power supply, single-chip microcontroller U1 control Q2 closure, K5B obtain it is electric so that K5A is in an off state, so that battery stops power supply, is powered by power cable 220V, is completed battery and is supplied power to power cable The conversion of 220V power supply, if at this time power cable without electricity or power cable since stolen, damage etc. is suddenly in without in electric situation, Then can be because of single-chip microcontroller U1 instant cut-off, K5B power loss, K5A is in closed state, is converted to the power supply of 5V battery, entire anti-theft journal Alert terminal continues to work normally；

If the single-chip microcontroller U1 of anti-theft alarm terminal can not have electricity anti-by the power cable of the antitheft detection module of power cable The electric signal for stealing the photoisolator U2 induction of detection module then judges anti theft host to the electric power electricity between anti-theft alarm terminal Cable has disconnected, i.e., power cable there may be it is stolen situations such as, single-chip microcontroller U1 by wireless communication module send alarm signal extremely Host computer continues to work normally at this point, anti-theft alarm terminal turns 3.3V module for power supply by 5V by 5V battery.

In addition, as shown in Figure 9, single-chip microcontroller can also detect the electricity of 5V battery, user is reminded to replace electricity in time with this Pond.

The anti theft host and anti-theft alarm terminal of multiple groups are arranged by each section of power cable in power cable by the application Combination, therefore, by the data integration of host computer, can be realized the judgement of each section of power cable on-off, to can also realize The positioning of power cable fault.

It is the preferred embodiment of the utility model above, it is all to change according to made by technical solutions of the utility model, it is produced Function without departing from technical solutions of the utility model range when, belong to the protection scope of the utility model.

Claims (10)

1. a kind of highway power cable anti-theft alarm device, which is characterized in that including along power cable power transmission direction The anti theft host and anti-theft alarm terminal successively connecting with power cable, the anti-theft alarm terminal include first singlechip module And whether there is or not electric switching modules, use for the antitheft detection module of power cable, the first power cable connecting with the first singlechip module It is carried out in the first power supply module powered for entire anti-theft alarm terminal, for realizing first singlechip module and host computer The wireless communication module of wireless communication；The anti theft host includes second singlechip module and connect with the second singlechip module Antitheft detectable voltage signals transmitting module, the second power cable whether there is or not electric switching module, for for entire anti theft host power Second source power supply module.

2. a kind of highway power cable anti-theft alarm device according to claim 1, which is characterized in that the electric power Cable theft-prevention detection module includes that power cable has the antitheft detection module of electricity, power cable without the antitheft detection module of electricity；The electricity It includes the first rectifier bridge, the first photoisolator, resistance R2, R3, R4 that power cable, which has the antitheft detection module of electricity,；First rectifier bridge Two input terminals are connect with the zero of power cable, firewire respectively, and the first output end of the first rectifier bridge is through R3 and the first Phototube Coupling The first input end of device connects, and the second output terminal of the first rectifier bridge connects through the second input terminal of R4 and the first photoisolator Connect, the first output end of the first photoisolator is connect through R2 with the end+3.3V, the first output end of the first photoisolator also with The first input end of first singlechip module connects, and the second output terminal of the first photoisolator is connected to GND；The electric power electricity Cable includes insurance resistance F1, the first relay, the second relay, diode D1, D2, resistance R1 without the antitheft detection module of electricity； The zero curve of one end of F1, one end of first the first normal open switch of relay and power cable connects, the other end of F1 through second after Electrical equipment control coil is connect with the firewire of one end of first the second normal open switch of relay, power cable, the first relay first The other end of normal open switch is connected through the cathode of second the first normally closed switch of relay and D2, first the second normal open switch of relay The other end connected through the anode of second the second normally closed switch of relay and D1, the cathode of D1 connects through the anode of R1 and D2, GND It connects, the cathode of D1 is also connect with the second input terminal of first singlechip module.

3. a kind of highway power cable anti-theft alarm device according to claim 2, which is characterized in that described first Power cable includes triode Q1, resistance R5, R6 whether there is or not electric switching module, and the collector of Q1 connects through the first relay control coil It is connected to the end+5V, the emitter of Q1 is connected with one end of R6 is connected to GND, and the base stage of Q1 is connected with one end of the other end of R6, R5 It connects, the other end of R5 is connect with an output end of first singlechip module.

4. a kind of highway power cable anti-theft alarm device according to claim 1, which is characterized in that described antitheft Detectable voltage signals transmitting module includes the second rectifier bridge, third rectifier bridge, diode D11, D12, D13, D14, the 4th relay Device, the 5th relay insure resistance F2, resistance R12, R13, R20, R22, R29, R30, the second photoisolator, voltage conversion Chip LM317AJ；One end of F2, one end of the 4th the first normal open switch of relay, the second rectifier bridge first input end and electricity The zero curve of power cable connects, and the other end of F2 is through the one of the 5th relay control coil and the 4th the second normal open switch of relay The firewire connection at end, the second input terminal of the second rectifier bridge, power cable, the first output end of the second rectifier bridge is through R12 and the The first input ends of two photoisolators connects, the second output terminal of the second rectifier bridge through R13 and the second photoisolator the The connection of two input terminals, the first output end of the second photoisolator are connected to the end+5V through R22, and the first of the second photoisolator Output end is also connect with second singlechip module, and the second output terminal of the second photoisolator is connected to GND, the 4th relay The other end of one normal open switch is connected through the anode of the 5th the first normally closed switch of relay and D14, and the 4th relay second is normally opened The other end of switch is connected through the cathode of the 5th the second normally closed switch of relay and D13, the anode of D13 and one end, the third of R30 First output end of rectifier bridge connects, the second output terminal connection of the cathode, third rectifier bridge of the other end and D14 of R30, third One end of the first input end of rectifier bridge and R20, LM317AJ OUT pin connect, the second input terminal of third rectifier bridge with One end of R29, which is connected, is connected to GND, the other end connection of the other end, R29 of the ADJ pin and R20 of LM317AJ, LM317AJ's The cathode connection of the cathode of IN pin and D11, D12, the anode of D11 are connected to GND, and the anode of D12 is connected to the end+24V.

5. a kind of highway power cable anti-theft alarm device according to claim 4, which is characterized in that described second Power cable includes triode Q5 whether there is or not electric switching module, and resistance R32, R33, the collector of Q5 is through the 4th relay control coil It is connected to the cathode of+D12, the emitter of Q5 is connected with one end of R33 is connected to GND, the other end of the base stage of Q5 and R33, R32 One end is connected, and the other end of R32 is connect with an output end of second singlechip module.

6. a kind of highway power cable anti-theft alarm device according to claim 2, which is characterized in that described first Power supply module includes that the first AC220V turns DC24V module, the first 24V turns 5V module, 5V turns 3.3V module and power supply is cut Change the mold block；The second source power supply module includes that the 2nd AC220V turns DC24V module, the 2nd 24V turns 5V module.

7. a kind of highway power cable anti-theft alarm device according to claim 6, which is characterized in that described first AC220V turns DC24V module and AC220V is converted to DC24V by transformer, and the transformer uses EI48；Described second AC220V turn the circuit structure of DC24V module and the first AC220V to turn the circuit structure of DC24V module identical.

8. a kind of highway power cable anti-theft alarm device according to claim 6, which is characterized in that described first It includes voltage conversion chip LM1117-5, diode D5, D6, D8, capacitor C9, C10, resistance R14, R17 that 24V, which turns 5V module,；The One AC220V turns the cathode connection of IN pin, D5 of the+24V of DC24V module output through D6, R17 and LM1117-5, LM1117-5 GND pin and the anode of D5, one end of C9, C10 one end be connected and be connected to GND, the OUT pin of LM1117-5, PAD pin with The anode connection of the other end of C9, the other end of C10, D8, and the end conduct+5V, the cathode of D8 are connected to GND through R14；Second 24V turn the circuit structure of 5V module and the first 24V to turn the circuit structure of 5V module identical.

9. a kind of highway power cable anti-theft alarm device according to claim 6, which is characterized in that the 5V turns 3.3V module includes resistance R9, R15, capacitor C12, C13, C14, voltage conversion chip LM1117-3.3, third relay and 5V battery；First 24V turn 5V module output+5V and one end of C12, one end of C13, one end of R15, LM1117-3.3 IN One end connection of pin, third relay normally closed switch, the other end of R15 are connected to GND through R9, and the other end of R15 is also with the The third input terminal of one one-chip computer module connects, and the other end of third relay normally closed switch is connect with the anode of 5V battery, 5V The cathode of battery and the other end of C12, the other end of C13, the GND pin of LM1117-3.3, C14 one end be connected and be connected to GND, The other end connection of the OUT pin, PAD pin and C14 of LM1117-3.3, and the end conduct+3.3V.

10. a kind of highway power cable anti-theft alarm device according to claim 9, which is characterized in that the electricity Source switching module includes triode Q2, resistance R10, R11, and the collector of Q2 is connected to first through third relay control coil 24V turns the end+5V of 5V module output, and the emitter of Q2 is connected with one end of R11 is connected to GND, and the base stage of Q2 and R11's is another End, R10 one end be connected, the other end of R10 is connect with another output end of first singlechip module.