CN204884103U - Cable electronic monitoring alarm devices based on thing networking - Google Patents
Cable electronic monitoring alarm devices based on thing networking Download PDFInfo
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- CN204884103U CN204884103U CN201520468118.7U CN201520468118U CN204884103U CN 204884103 U CN204884103 U CN 204884103U CN 201520468118 U CN201520468118 U CN 201520468118U CN 204884103 U CN204884103 U CN 204884103U
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Abstract
The utility model discloses a cable electronic monitoring alarm devices based on thing networking, including the anti theft host and with the theftproof of anti theft host communication is terminal, the anti theft host include embedded microprocessor and with data memory, clock circuit, watchdog circuit, power management circuit, alarm switch circuit, cable state indicating circuit, the running state indicating circuit that deploys troops on garrison duty, reputation drive circuit, wireless communication module, power line carrier communication module, cable that embedded microprocessor connects open circuit monitoring module, input data memory 0 data memory 1. The utility model discloses on theftproof alarm sensor monitors the cable when opening circuit, can initiatively send warning SMS to user preset's cell -phone, can initiate to report to the police to the surveillance center simultaneously, when surveillance center's software is received a crime report, accurately on the GIS map promptly mark the position that the cable opens circuit to send the warning sound.
Description
Technical field
The utility model relates to cable theft-prevention monitoring technique field under a kind of there is electric power or not state, is specifically related to a kind of cable theft-prevention monitoring alarm equipment based on Internet of Things.
Background technology
Recent year capital construction continues to increase, the illuminating street lamp facility of the occasions such as urban road, industrial park, factories and miness, freeway tunnel, school, goods yard also constantly increases, broad covered area, problems are brought to the management and control work of lighting installation, the wherein frequent stolen event of light conduits most serious of all, bring tremendous economic loss to every profession and trade, social influence is severe, very big because stealing the line electrical leakage potential safety hazard caused.
Road lighting is the important public utility ensureing pedestrian's night trip, traffic safety, and the good use of illuminating street lamp facility, play and reduce traffic hazard Probability, reduce the vital role of social security hidden danger, the construction of lighting installation stabilizes society established good basis for creating harmony, therefore at present every profession and trade illumination supervision in the urgent need to the cable monitoring and alarming system had under electricity and electroless state a set of Network Basedization, real-time, 24 hours.
Light conduits anti-thefting monitoring panalarm is made up of anti theft host and antitheft end on the market at present.Anti theft host is arranged in light distribution box, working power is provided by light distribution box, antitheft end is arranged on the tail end of light conduits, under (turning off the light) state that has a power failure daytime, antitheft end is by the accumulator maintenance work carried, anti theft host and antitheft end utilize light conduits as exchanging visit communication media, interrupts judging whether electric discontinuity of cable fault occurs by communication abnormality.At present on the market light conduits antitheft employing technical approach and shortcoming as follows:
1, power carrier mode
Cable have electricity and electroless state under open circuit monitor all adopt power carrier mode.Principle of work: anti theft host is arranged in light distribution box, antitheft end is arranged in the manhole bottom illumination tail end light pole, and under having electricity condition, antitheft end is powered by light conduits, relies on accumulator to maintain self work under electroless state.Anti theft host adopts the antitheft end-wise manner of poll, interrupts judging whether cable open circuit fault occurs, realize cable theft-prevention monitoring to detect communication abnormality.Because antitheft end adopts battery-operated under electroless state, accumulator is in the rugged environment of summer high temperature, winter severe cold and humidity, use the longevity extremely short, build with maintenance cost is high from now on, if run into light conduits to have a power failure for a long time or the situation such as battery charge time is too short, cell damage will certainly cause wrong report, poor reliability.Be polling mechanism due to what technically adopt in addition, when antitheft end quantity is too much, polling cycle can be caused long, the warning sensitivity made is difficult to regulate and control, and rate of false alarm is high, reports to the police seriously delayed.
2,433Mhz communication
Anti theft host and antitheft end adopt communication to realize light conduits open circuit monitoring.Principle of work: anti theft host is arranged in light distribution box, antitheft end is arranged on the street lamp post of cable end piece, and electroless state relies on accumulator to maintain self work, and antitheft end adopts unique geocoding mode.To have under electricity condition when cable generation open circuit, antitheft end can automatically switch to accumulator and maintain self work, and initiatively send warning message to anti theft host, anti theft host contrasts according to the address information of the antitheft end received and the electricity condition that has of host monitor corresponding line, sentences circuit and whether open circuit fault occurs.
Light conduits sends one group of DC24V direct current for antitheft end work and charge in batteries without anti theft host during electricity to light conduits, and this voltage also uses as cable break-make pilot signal by antitheft end simultaneously.When cable generation open circuit, antitheft end automatically switches to storage battery power supply, and initiatively sends warning message to anti theft host, judges whether cable open circuit fault occurs for anti theft host.
Adopt the shortcoming of 433Mhz radio communication: owing to adopting same band communication, there is no communication protocol guarantee in addition, when burglary-resisting installation quantity is too much or multiple equipment initiates to report to the police simultaneously, very easily produce signal conflict; Owing to using public open frequency range, be very easily subject to the interference of other same equipment frequently; In order to ensure wireless communication distance, antitheft end is arranged on lamp stand, the installation of equipment and difficult in maintenance from now on, adopts battery-operated bad environments (summer high temperature, winter severe cold, rainwater weather etc.);
3, zigbee communication
ZigBee have employed collision-avoidance mechanism (talk-when-ready), carrier sense/collision detection (CSMA-CA) mode is adopted to carry out channel access, and zigbee has and automatically sets up network function, well solve the drawback of 433Mhz communication, but because illuminating street lamp cable is long: 1800 meters ~ 2500 meters, and ZigBee technology is one is applicable to transmission technology in short-range, general 10mW's can to tens meters/100 meters, owing to being microwave frequency band, pickup electrode is subject to build thing to be stopped, burglary-resisting system needs to adopt trunk module, in order to ensure radio communication, antitheft end is arranged on lamp stand, the installation of equipment and difficult in maintenance from now on, owing to adopting battery-operated bad environments (summer high temperature under electroless state, winter severe cold, rainwater weather etc.),
4, RC capacitance-resistance probe method
The time base circuit for generating that anti theft host adopts R (resistance) C (electric capacity) to produce carrys out monitoring cable.Principle of work: by monitored cable any one access anti theft host (regarding C as), a time occurring source is formed with anti theft host, because every root cable length is fixed, therefore produced temporal frequency is fixed, when cable generation open circuit, its frequency of operation changes, and with this, anti theft host determines whether cable occurs stolen.Advantage: anti theft host is arranged in light distribution box, without the need to installing antitheft end, installation and maintenance are easy.Shortcoming: because high-pressure mercury lamp has building-out capacitor, in addition as trigger, change light fixture, line maintenance all can have influence on circuit capacitance, therefore debug difficulties, equipment dependability is poor, rate of false alarm is high.
5, pulse echo test
At the high-voltage positive pulses of one end of cable feeding one fixed width, what reflect during electric discontinuity of cable is positive pulse, the time T being reflected back end by ranging pulse is according to electromagnetic wave velocity of propagation V in the cable, calculate breakpoint distance, with sending, receiving and process pulse signal, obtain the distance of transmission and received pulse, reach and determine electric discontinuity of cable position, this mode is only applicable to the monitoring of cable electroless state.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of two kinds of monitor modes realized under whole day 24 hours there is electric power or not states, the cable theft-prevention monitoring alarm equipment based on Internet of Things that monitoring mode is changed automatically.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
Based on a cable theft-prevention monitoring alarm equipment for Internet of Things, the antitheft end comprising anti theft host and communicate with described anti theft host; Data-carrier store, clock circuit, watchdog circuit, electric power management circuit, alarm switch circuit, cable status indicating circuit, running status of deploying troops on garrison duty indicating circuit, acousto-optic driving circuit, wireless communication module, power line carrier, PLC module, electric discontinuity of cable monitoring modular, input exchange signal detection module that described anti theft host comprises embedded microprocessor and is connected with described embedded microprocessor.
Further technical scheme is that electric discontinuity of cable monitoring modular comprises the monitor data receiver module and monitor data sending module that are connected with described embedded microprocessor; Described monitor data receiver module is connected with described input exchange signal detection module.
Further technical scheme also comprises the RS485 communication module, USB interface and the alarm sound circuit that are connected with described embedded microprocessor.
Further technical scheme is that wireless communication module comprises SIM card circuit, and described SIM card circuit connects electrostatic discharge protective circuit and embedded microprocessor.
Further technical scheme is isolated form DC-DC power source, anti-static protective circuit, anti-surge protection circuit and the protection against lightning strikes circuit that RS485 communication module comprises isolated form RS485 chip and is connected with described isolated form RS485 chip.
Further technical scheme is the triode that acousto-optic driving circuit comprises relay and positive-negative-positive structure, and the coil two ends of a described relay inverse electromotive force in parallel is released the contact shunt surge protection circuit of protection diode, described relay; Described transistor base is connected with embedded microprocessor through current-limiting resistance; Described transistor collector connects described relay; Described transistor emitter ground connection.
Further technical scheme is that alarm switch circuit comprises DIP toggle switch, described DIP toggle switch one end ground connection, and the other end connects pull-up resistor; Switch signal line one end of described alarm switch circuit connects described DIP toggle switch, and the other end of switch signal line is connected to filter capacitor and is connected with embedded microprocessor with TVS pipe again.
Further technical scheme is the carrier wave microprocessor that power line carrier, PLC module comprises LonWorks bus protocol, and the carrier wave microprocessor of described LonWorks bus protocol is connected with embedded microprocessor by universal serial bus; The carrier wave microprocessor modulation signal end connection signal coupling filtering circuit of described LonWorks bus protocol, described signal coupling filtering circuit connects carrier signal amplification circuit, and described carrier signal amplification circuit connects output filter circuit; Described output filter circuit connects anti-surge protection circuit, described anti-surge protection circuit connection signal coupling transformer; Described signal coupling transformer by carrier (boc) modulated signals through coupling which couple on cable line; Described coupling circuit output end connects the second anti-surge protection circuit; described second anti-surge protection circuit connects current-limiting circuit; described current-limiting circuit connects zero cross detection circuit, and described zero cross detection circuit connects waveform shaping circuit, and described waveform shaping circuit connects embedded microprocessor.
Further technical scheme is that monitor data receiver module comprises choke induction, surge protection circuit, dividing potential drop current-limiting circuit and wave shaping filtering circuit; Described choke induction connects antitheft end, and described choke induction connects surge protection circuit, and described surge protection circuit connects dividing potential drop current-limiting circuit, and described dividing potential drop current-limiting circuit connects wave shaping filtering circuit; Described wave shaping filtering circuit connects described embedded microprocessor.
Further technical scheme is that monitor data sending module comprises baseband signal amplifying circuit, relay commutation circuit, pressure-sensitive protection circuit and choke inductor; Described baseband signal input amplifier connects described embedded microprocessor; described baseband signal amplification circuit output end connects relay commutation circuit; described relay commutation circuit connects pressure-sensitive protection circuit, and described pressure-sensitive protection circuit connects described choke inductor.
Compared with prior art, the beneficial effects of the utility model are: the utility model anti theft host adopts Modular Structure Design, and monitor channel can according to the output cable quantity flexible configuration of user's light distribution box reality, plug and play; Anti theft host supports that communication such as: radio communication supports the communication of GSM/GPRS/CDMA/3G/4G public network, and the communication of RS485 industrial bus, optical fiber communication, ethernet communication etc. are supported in wire communication, and burglary-resisting installation is applicable to the use of different occasion; When burglar alarm host supervision is to electric discontinuity of cable, can initiatively send alarming short message to user preset mobile phone on, simultaneously can initiate to report to the police, when monitoring center software is received a crime report to Surveillance center, namely in GIS map, accurately mark the position of electric discontinuity of cable, and send alarm sound; Monitoring software can long-rangely arrange anti theft host warning sensitivity, alarm times, deploy troops on garrison duty and withdraw a garrison, every controling parameters such as alarm sound; Effectively rate of false alarm can be reduced by every monitoring parameter of long-range adjustment alarm host machine.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of the utility model embodiment.
Fig. 2 is power line carrier, PLC modular circuit theory diagram in the utility model embodiment.
Fig. 3 is monitor data transmission, receiver module and input exchange signal detection module schematic block circuit diagram in the utility model embodiment.
Fig. 4 is wireless communication module schematic block circuit diagram in the utility model embodiment.
Fig. 5 is acousto-optic driving circuit principle figure in the utility model embodiment.
Fig. 6 is input exchange signal testing circuit schematic diagram in the utility model embodiment.
Fig. 7 is RS485 communication module circuit theory diagrams in the utility model embodiment.
Fig. 8 is alarm switch circuit and cable status indicating circuit schematic diagram in the utility model embodiment
Fig. 9 is the software flow pattern of the utility model embodiment.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this instructions (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in detail.
As shown in Figure 1, according to an embodiment of the present utility model, the present embodiment discloses a kind of cable theft-prevention monitoring alarm equipment based on Internet of Things, the antitheft end that it comprises anti theft host and communicates with anti theft host; Anti theft host is provided with Main Processing Unit, data-carrier store, clock circuit, watchdog circuit, electric power management circuit, alarm switch circuit, cable status indicating circuit, running status of deploying troops on garrison duty indicating circuit, acousto-optic driving circuit, wireless communication module, power line carrier, PLC module, electric discontinuity of cable monitoring modular, input exchange signal detection module, USB interface, alarm sound circuit, RS485 communication module that the electrical structure of anti theft host comprises embedded microprocessor and is connected with embedded microprocessor; Anti theft host also comprises the lithium battery group be connected with electric power management circuit.
The present embodiment is having under electricity condition based on the cable theft-prevention monitoring alarm equipment of Internet of Things, by realizing light conduits open circuit monitoring based on LonWorks power carrier bus communication technology, the power carrier bussing technique advantage of LonWorks technology: LON net is open and the standard network control system of the fieldbus recommendation of interoperability, data communication due to LonWorks power carrier have employed collision-avoidance mechanism (talk-when-ready), have employed carrier sense/collision detection (CSMA-CA) mode and carry out channel access, and there are data automatically forward, automatic establishing network function.In the present embodiment, power carrier adopts narrow band communication pattern, BFSK modulation system (two phase shift key modulation modes), out of phase is utilized to carry out the communication of expression data, traffic rate 300bps-9600bps, adopt dual-frequency data transmission mode, carrier frequency is respectively 132Khz and 115Khz, is initiatively switched on subaisle reduces transmission error code and communication failure when main channel signal can not be communicated by interference.
The present embodiment adopts LonWorks power carrier bus communication technology, thoroughly solve communication data collision problem, under having electricity condition, anti theft host is only in accepting state, and antitheft end initiatively sends data to anti theft host real-time continuous, because the data communication of LonWorks power carrier have employed collision-avoidance mechanism, thoroughly solve polling mode, various technical matterss that wireless mode brings.Because the antitheft end of every platform all has unique geocoding, anti theft host judges that antitheft end communication disruption according to the address information received, and judges cable generation open circuit fault with this.
The present embodiment provides a kind of passive mode, real-time, multichannel light conduits monitoring technique under electroless state.The characteristic that the present embodiment utilizes light conduits zero line public, continuous print monitor data stream is sent to zero line by the transmit port of anti theft host, data stream turns back to phase line through passive antitheft end, data message in the monitored phase line of anti theft host real-time sampling, according to determining cable generation open circuit fault with or without traffic flow information.This mode can in real time, synchronization monitoring many light conduits, equipment dependability is high, rate of false alarm is low, extendability is strong, easy maintenance, thoroughly overcomes the defect of cable monitoring technique under above-mentioned electroless state simultaneously.
Concrete, in the present embodiment, Main Processing Unit adopts embedded-type ARM microprocessor (MCU), what be connected with embedded-type ARM microprocessor (MCU) has Program reset chip, power management chip, real-time timepiece chip, pin-saving chip, lithium battery managing chip, USB interface chip, RS485 interface chip, RS232 interface chip, luminotron diode, relay driving chip, relay, hummer, DIP toggle switch.
Further, as shown in Figure 2, in the present embodiment, power line carrier, PLC module is made up of the carrier wave microprocessor, serial port circuit, resistance, electric capacity, diode, triode, optocoupler, pickup coil, inductance, TVS pipe etc. of LonWorks bus protocol; The carrier signal exported by carrier wave microprocessor modulation signal end is connected with LC filtering circuit through RC series coupled circuit, and the carrier signal amplification circuit formed through triode is connected with the output filter circuit that resistance, electric capacity, inductance are formed; The protection circuit formed through TVS pipe is connected with signal input and output coupling transformer; Carrier (boc) modulated signals through three high-voltage capacitances by information coupling on three-phase lighting circuit; The carrier wave microprocessor of LonWorks bus protocol is connected with embedded microprocessor (MCU) by universal serial bus; The described primary side crossed three-phase alternating current zero-crossing detection circuit input test side antisurge protection in parallel voltage dependent resistor (VDR), be connected to interchange optocoupler through current-limiting resistor voltage divider, optocoupler primary side parallel connection protection voltage stabilizing diode; The secondary side of optocoupler inputs to the carrier wave microprocessor of LonWorks bus protocol through the waveform shaping circuit that trigger is formed.
As shown in Figure 3, the break monitoring in the present embodiment under cable electroless state comprises transmission and receives two parts circuit; Pilot signal sends: the continuous square-wave signal produced by embedded microprocessor (MCU), the baseband signal amplifying circuit, the relay commutation circuit that form through amplifier, is sent to power for illumination cable by choke inductor after pressure-sensitive protection circuit; The pilot signal that pilot signal receiving circuit is returned by antitheft end is connected to wave shaping filtering circuit after choke induction, anti-surge protection circuit, dividing potential drop limiting filter circuit, delivers to and embedded microprocessor (MCU) through reshaping signal.
Further, as shown in Figure 6, input exchange signal detection module is made up of optocoupler, diode, zener diode, resistance, electrochemical capacitor, triode, voltage dependent resistor (VDR), light emitting diode; Wherein, input sampling alternating voltage, through voltage dependent resistor (VDR) in parallel between live wire and zero line, inputs phase line series capacitance; Input phase line and each resistance in series of zero line and zener diode and form dividing potential drop and current-limiting circuit, again through diode and light emitting diode composition rectification circuit and filter capacitor after, deliver to optocoupler primary side, a primary side 10mA shunt resistance in parallel of optocoupler, the secondary side triode of optocoupler forms OC gate drive circuit, be connected to input and output change again and send motherboard, then be connected with embedded microprocessor (MCU).
Further, as shown in Figure 4, wireless communication module is connected with serial communication circuit by GPRS/CDMA/3G/4G communication module, antenna circuit, sim card slot circuit, communications status indicating circuit, working power circuit; Wireless communication module is connected with embedded microprocessor (MCU) by serial port circuit; In order to protect SIM card safety, CLK, DATA, RESET data signal line of sim card slot is connected in series by current-limiting resistance, then is connected with embedded microprocessor (MCU) through the electrostatic discharge protective circuit that TVS pipe and filter capacitor are formed.
Further, as shown in Figure 7, RS485 communication module is made up of isolated form RS485 chip, isolated form DC-DC power source, antistatic protection, antisurge and protection against lightning strikes circuit.The A/B Differential Signal Bus series thermal-sensitive protective resistance that RS485 interface integrated circuit exports, through to connect up and down partially and the common and different mode of lower inclined resistance and the special three terminal bidirectional TVS pipe composition of RS485 suppresses protection circuit, then exports; TXD with RXD of RS485 is connected with embedded microprocessor (MCU).
Further, in the present embodiment, usb circuit is made up of USBV2.0 chip, crystal and electric capacity, and TXD, RXD receiving and transmitting signal of USB is connected with embedded microprocessor (MCU); USB interface is used for extrapolation USB flash disk store alarms information.
Further, as shown in Figure 5, in the present embodiment, acousto-optic driving circuit is made up of relay, triode, diode, resistance, electric capacity; Because the embedded microprocessor port that initially powers on is in high level, in order to avoid now misoperation appears in relay, driving circuit adopts the triode of positive-negative-positive structure, the collector driving circuit of formation; The coil two ends of a relay inverse electromotive force in parallel is released the surge protection circuit of protection diode, the pressure-sensitive formation of contact shunt of relay; The base stage of triode is connected with embedded microprocessor (MCU) through current-limiting resistance.
Further, as shown in Figure 8, in the present embodiment, alarm switch circuit is made up of DIP toggle switch, resistance, electric capacity; Alarm switch adopts Low level effective mode, and toggle switch one end ground connection, the other end connects pull-up resistor, and switch signal line is connected to filter capacitor over the ground and is connected with embedded microprocessor (MCU) with TVS pipe again.
Alarm sound circuit on mainboard is made up of hummer, triode, resistance, electric capacity; Because the microprocessor port that initially powers on is in high level, in order to avoid ringing by mistake, the collector driving circuit that hummer adopts the triode of positive-negative-positive structure to form, the base stage of triode is connected with embedded microprocessor (MCU) with filter capacitor through current-limiting resistance.
Watchdog circuit on mainboard, adopts the reset protective circuit that the integrated circuit of special Program reset and anti-deadlock protection is formed.Work as operating voltage, during operating voltage lower than setting, program is run there will be and is crashed or run when flying, and reset protective circuit initiatively can send reset signal to MCU, forces MCU to enter reset mode, occurs misoperation to avoid program.If when program emerged in operation crashes in addition or race flies, reset protective circuit is waiting in the time situation of 1.6 seconds to be fixed, if can not get MCU response again, initiatively can send reset signal, force MCU Program reset, avoid program to crash.
Further, as shown in Figure 9, the present embodiment based on the workflow of the cable theft-prevention monitoring alarm equipment of Internet of Things is, judging have electricity condition or electroless state, when being judged as electroless state, sending monitor data stream, antitheft end receives monitor data stream, anti theft host judges whether communication terminal occurs, if there is communication disruption, then realizes fault alarm.Judge it is when having electricity condition when anti theft host, wait-receiving mode end data, anti theft host judges whether communication disruption occurs, if there is communication disruption, then realizes fault alarm.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any one embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although the multiple explanatory embodiment here with reference to utility model is described the utility model, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. based on a cable theft-prevention monitoring alarm equipment for Internet of Things, the antitheft end comprising anti theft host and communicate with described anti theft host; It is characterized in that: data-carrier store, clock circuit, watchdog circuit, electric power management circuit, alarm switch circuit, cable status indicating circuit, running status of deploying troops on garrison duty indicating circuit, acousto-optic driving circuit, wireless communication module, power line carrier, PLC module, electric discontinuity of cable monitoring modular, input exchange signal detection module that described anti theft host comprises embedded microprocessor and is connected with described embedded microprocessor.
2. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, is characterized in that described electric discontinuity of cable monitoring modular comprises the monitor data receiver module and monitor data sending module be connected with described embedded microprocessor; Described monitor data receiver module is connected with described input exchange signal detection module.
3. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, characterized by further comprising the RS485 communication module, USB interface and the alarm sound circuit that are connected with described embedded microprocessor.
4. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, is characterized in that described wireless communication module comprises SIM card circuit, and described SIM card circuit connects electrostatic discharge protective circuit and embedded microprocessor.
5. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 3, is characterized in that isolated form DC-DC power source, anti-static protective circuit, anti-surge protection circuit and protection against lightning strikes circuit that described RS485 communication module comprises isolated form RS485 chip and is connected with described isolated form RS485 chip.
6. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, it is characterized in that described acousto-optic driving circuit comprises the triode of relay and positive-negative-positive structure, the coil two ends of a described relay inverse electromotive force in parallel is released the contact shunt surge protection circuit of protection diode, described relay; Described transistor base is connected with embedded microprocessor through current-limiting resistance; Described transistor collector connects described relay; Described transistor emitter ground connection.
7. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, is characterized in that described alarm switch circuit comprises DIP toggle switch, described DIP toggle switch one end ground connection, and the other end connects pull-up resistor; Switch signal line one end of described alarm switch circuit connects described DIP toggle switch, and the other end of switch signal line is connected to filter capacitor and is connected with embedded microprocessor with TVS pipe again.
8. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 1, it is characterized in that described power line carrier, PLC module comprises the carrier wave microprocessor of LonWorks bus protocol, the carrier wave microprocessor of described LonWorks bus protocol is connected with embedded microprocessor by universal serial bus; The carrier wave microprocessor modulation signal end connection signal coupling filtering circuit of described LonWorks bus protocol, described signal coupling filtering circuit connects carrier signal amplification circuit, and described carrier signal amplification circuit connects output filter circuit; Described output filter circuit connects anti-surge protection circuit, described anti-surge protection circuit connection signal coupling transformer; Described signal coupling transformer by carrier (boc) modulated signals through coupling which couple on cable line; Described coupling circuit output end connects the second anti-surge protection circuit; described second anti-surge protection circuit connects current-limiting circuit; described current-limiting circuit connects zero cross detection circuit, and described zero cross detection circuit connects waveform shaping circuit, and described waveform shaping circuit connects embedded microprocessor.
9. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 2, is characterized in that described monitor data receiver module comprises choke induction, surge protection circuit, dividing potential drop current-limiting circuit and wave shaping filtering circuit; Described choke induction connects antitheft end, and described choke induction connects surge protection circuit, and described surge protection circuit connects dividing potential drop current-limiting circuit, and described dividing potential drop current-limiting circuit connects wave shaping filtering circuit; Described wave shaping filtering circuit connects described embedded microprocessor.
10. the cable theft-prevention monitoring alarm equipment based on Internet of Things according to claim 2 or 9, is characterized in that described monitor data sending module comprises baseband signal amplifying circuit, relay commutation circuit, pressure-sensitive protection circuit and choke inductor; Described baseband signal input amplifier connects described embedded microprocessor; described baseband signal amplification circuit output end connects relay commutation circuit; described relay commutation circuit connects pressure-sensitive protection circuit, and described pressure-sensitive protection circuit connects described choke inductor.
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| CN201520468118.7U CN204884103U (en) | 2015-06-30 | 2015-06-30 | Cable electronic monitoring alarm devices based on thing networking |
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| CN201520468118.7U CN204884103U (en) | 2015-06-30 | 2015-06-30 | Cable electronic monitoring alarm devices based on thing networking |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993390A (en) * | 2017-12-05 | 2018-05-04 | 国网江苏省电力公司南通供电公司 | A kind of antitheft remote alarming device of high-tension apparatus and circuit based on DSP |
| CN109315310A (en) * | 2018-11-30 | 2019-02-12 | 成都普连众通科技有限公司 | A kind of pet apparatus for managing and monitoring based on narrowband Internet of Things |
| CN109697816A (en) * | 2019-03-04 | 2019-04-30 | 四川艾贝斯科技发展有限公司 | Power cable anti-theft monitoring system and monitoring method based on constant-current dc electricity |
| CN113324592A (en) * | 2021-06-30 | 2021-08-31 | 国网河北省电力有限公司信息通信分公司 | System, method, switching device and storage medium for pipe gallery monitoring |
-
2015
- 2015-06-30 CN CN201520468118.7U patent/CN204884103U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993390A (en) * | 2017-12-05 | 2018-05-04 | 国网江苏省电力公司南通供电公司 | A kind of antitheft remote alarming device of high-tension apparatus and circuit based on DSP |
| CN109315310A (en) * | 2018-11-30 | 2019-02-12 | 成都普连众通科技有限公司 | A kind of pet apparatus for managing and monitoring based on narrowband Internet of Things |
| CN109697816A (en) * | 2019-03-04 | 2019-04-30 | 四川艾贝斯科技发展有限公司 | Power cable anti-theft monitoring system and monitoring method based on constant-current dc electricity |
| CN113324592A (en) * | 2021-06-30 | 2021-08-31 | 国网河北省电力有限公司信息通信分公司 | System, method, switching device and storage medium for pipe gallery monitoring |
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