CN110361634A - A kind of cable anti-theft device and its monitoring method - Google Patents
A kind of cable anti-theft device and its monitoring method Download PDFInfo
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- CN110361634A CN110361634A CN201910786218.7A CN201910786218A CN110361634A CN 110361634 A CN110361634 A CN 110361634A CN 201910786218 A CN201910786218 A CN 201910786218A CN 110361634 A CN110361634 A CN 110361634A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 68
- 238000012545 processing Methods 0.000 claims abstract description 63
- 238000004891 communication Methods 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
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- 230000003993 interaction Effects 0.000 claims abstract description 10
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- 239000000523 sample Substances 0.000 claims description 32
- 230000006870 function Effects 0.000 claims description 23
- 238000007689 inspection Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 206010070834 Sensitisation Diseases 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 230000008313 sensitization Effects 0.000 claims description 6
- 230000002123 temporal effect Effects 0.000 claims description 5
- 230000001771 impaired effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000001010 compromised effect Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of cable anti-theft device and its monitoring methods, it is related to power electronics field, the device includes that central processing unit and the wireless communication module connecting with central processing unit, serial communication circuit, interaction circuit, sound light alarming circuit, power circuit and signal processing circuit, the input terminal of signal processing circuit are connected with multi-way detecting delivery outlet and detection input port.Cable anti-theft device proposed by the present invention being capable of real-time monitoring cable status, have the function of anti-theft early-warning, the monitoring of cable on-off, remote alarms and wireless telecommunications etc., device application is simple, it can directly be connect with the steel armour of cable to be monitored, realize the monitored over time of cable, when HV CABLE SYSTEM works normally, which also has the on-off function of real-time monitoring phase line, and monitoring result can be made a phone call and be sent short message mode by wireless network and be sent to mobile phone or PC terminal.
Description
Technical field
The invention belongs to portable power electronic technology fields, and in particular to a kind of cable anti-theft device and its monitoring side
Method.
Background technique
Wire and cable is to transmit electric (magnetic) energy, information and the wire product for realizing electromagnetic energy conversion.The electric wire electricity of broad sense
Cable is also referred to simply as cable, and the cable of narrow sense refers to insulated cable, it may be defined as: the aggregate consisted of following parts；One
Or the clad that a plurality of insulated core and each may have, total protective layer and outer jacket, cable can also have additional
The conductor not insulated.Existing cable in actual use, is enclosed with steel armour, can be obviously improved cable after armouring
Tensile strength, compression strength etc., prolong its service life, while armouring has certain external force resistance performance, can also anti-mouse
Equal animals bait, and are unlikely to cause power transmission problem through armouring.However, the main material inside cable is cathode copper, absolutely
Edge material and protective cover material.Cathode copper is per ton at 50,000 yuan or so on raw material market, and the composition brass of recycling is per ton at 40,000 yuan or so, together
When, insulator and protective cover material can be sold, and high Master Cost causes the pilferage cable of criminal's wildness, lead to state
Family, the property of unit are impaired, in order to avoid cable theft, are badly in need of designing a anti-theft device from technological layer, to solve
Existing issue.
Summary of the invention
In view of this, cable anti-theft device proposed by the present invention can real-time monitoring cable status, have anti-theft early-warning, electricity
The functions such as the monitoring of cable on-off, remote alarms and wireless telecommunications, device application is simple, can directly with the steel armour of cable to be monitored
Connection, realizes the monitored over time of cable, and when HV CABLE SYSTEM works normally, which also has the logical of real-time monitoring phase line
Disconnected function, monitoring result can be made a phone call and be sent short message mode by wireless network and be sent to mobile phone or PC terminal.
In order to achieve the object of the present invention, the present invention adopts the following technical scheme:
A kind of cable anti-theft device, which is characterized in that connect including central processing unit and with central processing unit wireless
Communication module, serial communication circuit, interaction circuit, sound light alarming circuit, power circuit, signal processing circuit and attack early warning
Circuit, the input terminal of the signal processing circuit are connected with multi-way detecting delivery outlet, detection input port, in which: described wireless
Communication module can receive the remote control signal of server-side by GPS/GSM, satellite or wireless network mode and supervise cable
The real-time results of survey feed back to remote service end, and the remote service end includes mobile terminal or the end PC；The serial communication circuit
For connecting host computer；The interactive circuit includes LCD display and multiple physical buttons, and the LCD display is for showing
Monitoring data, the physical button are inputted for user's control；The sound light alarming circuit includes buzzer and LED light, center
Processor determine that cable to be monitored is impaired or function setting it is improper after, central processing unit control buzzer works and controls LED light
Flashing alarm；External communication electricity, external dc electricity or internal direct current electricity can be converted into electricity needed for device by the power circuit
Source；The signal processing circuit is used to the analog signal of multi-way detecting input port being converted into digital signal, and by digital signal
It is transmitted to central processing unit processing；The detection delivery outlet passes through the steel that electric wire connects cable to be monitored with input port is detected respectively
Armour；The attack early warning circuit includes multiple infrared probes, and the infrared probe is arranged on the route of cable to be monitored.
It preferably, further include multiple relays, the multiple relay is separately positioned on signal processing circuit and detection is defeated
Between entrance, relay is used for partition external circuit and internal circuit in the case where no signal input.
It preferably, further include switching value I/O circuit and voltage adapter, the switching value I/O circuit is arranged in signal processing
Between circuit and detection input port, switching value I/O circuit is used to detect the input voltage of input port, the voltage adapter installation
Between signal processing circuit and relay, the voltage that voltage adapter is used to will test input port is adjusted to signal processing circuit
The range being capable of handling, when the input voltage for detecting input port belongs in preset range, detection input port is straight by relay
Signal processing circuit is connect in succession, and when the input voltage for detecting input port is more than in preset range, detection input port is passed sequentially through
Relay and voltage adapter connection signal processing circuit.
Preferably, the wireless communication module includes SIM800 chip and MY1860 chip.
Preferably, the power circuit includes LTC4051 chip.
Preferably, the central processing unit includes STM32F405 chip.
Preferably, voltage detecting uses isolating transformer and the double insulation blocking of optocoupler in the signal processing circuit.
Cable anti-theft device and its monitoring method of the invention has the advantages that
(1) cable anti-theft device proposed by the present invention can real-time monitoring cable status, have anti-theft early-warning, cable on-off
The functions such as monitoring, remote alarms and wireless telecommunications, device application is simple, can directly connect with the steel armour of cable to be monitored,
Realize the monitored over time of cable.
(2) cable anti-theft device proposed by the present invention uses isolating transformer and optocoupler carries out dual resisteance protection, together
When, switching value I/O circuit and voltage adapter are proposed, excessive, the too small technical problem of monitoring voltage is solved.
(3) cable anti-theft device proposed by the present invention also has real-time monitoring phase when HV CABLE SYSTEM works normally
The on-off function of line, monitoring result can be made a phone call and be sent short message mode by wireless network and be sent to mobile phone or PC end
End.
(4) cable anti-theft device proposed by the present invention has the function of attack early warning by infrared probe group, predicts quilt in advance
Danger is stolen, the when and where of invasion is recorded, on the one hand can provide against hidden trouble in advance, on the other hand can quickly be arranged based on data
It looks into.
A kind of monitoring method of cable anti-theft device, which is characterized in that including following operating procedure:
A1) wiring prepares: external power supply or internal cell power supply being connected to cable anti-theft device and by cable to be monitored
Steel armour distal end be shorted forming circuit, the steel armour of cable to be monitored is respectively connected to detection delivery outlet by electric wire and detection is defeated
One of wireless antenna, GSM/GPS antenna, satellite GSM antenna and satellite SAT antenna or a variety of antennas are connected to by entrance
Cable anti-theft device；
A2) electrifying startup: opening cable anti-theft device, and cable anti-theft device judgement access power supply type works as external communication
When electricity and external dc electricity access cable anti-theft device simultaneously, cable anti-theft device preferentially uses external communication electric；
A3) function is set: user is in such a way that the quantity of cable to be monitored, wireless telecommunications are arranged in interaction circuit, communication
The quantity of number and infrared probe；
A4) equipment self-inspection: after the completion of function setting, cable anti-theft device is directed to detection delivery outlet, detection input port one by one
It checks, the number of cables to be monitored according to setting determines whether wiring is correct, when wiring is correct, into next step；When connecing
When line is incorrect, the sound light alarming circuit of cable anti-theft device starts and passes through the specific fault message of display exhibits, until connecing
After line modification is correct, into next step；
A5) relay open circuit protection: after the completion of equipment self-inspection, for not used detection input port and detecting delivery outlet,
Cable anti-theft device controls corresponding relay partition external circuit and internal circuit；
A6) voltage judges: after the completion of equipment self-inspection, for used detection input port and detection delivery outlet, cable is anti-
It steals device and is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, the switching value I/O circuit in cable anti-theft device
The voltage of acquisition testing input port, when voltage is in preset range, cable anti-theft device enters real-time monitoring state；When voltage not
In preset range, the sound light alarming circuit of cable theft-prevention assembling device starts and passes through the specific fault message of display exhibits, right
The detection input port answered should first access the voltage adapter in cable anti-theft device and carry out voltage conditioning, until voltage is adjusted to pre-
If when range, cable anti-theft device enters real-time monitoring state；
A7) real-time monitoring: cable anti-theft device is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, electricity
The electric current of the real-time acquisition testing input port of the signal processing circuit of cable anti-theft device, when the electric current of detection input port is less than preset value
When, cable anti-theft device determines that cable to be monitored is compromised, and cable anti-theft device notifies remote service by wireless communication module
End；When the electric current for detecting input port is greater than preset value, cable anti-theft device determines that cable to be monitored is normal, continues to monitor；
A8) power-off is closed: cable anti-theft device power-off, software systems are closed.
Preferably, in the real-time monitoring step further include:
Cable anti-theft device has multiple infrared probes by attack early warning circuit connection, and the infrared probe is distributed in wait supervise
It surveys near cable, when the area of coverage has heat biology to enter, cable anti-theft device obtains the position of corresponding infrared probe and by position
Confidence breath and temporal information realize anti-theft early-warning by wireless communication module notice remote service end.
Preferably, in the real-time monitoring step further include:
Cable anti-theft device has multiple infrared probes by attack early warning circuit connection, and the infrared probe is distributed in wait supervise
It surveys near cable, when the area of coverage has heat biology to enter, cable anti-theft device obtains the position of corresponding infrared probe, and records
Entry time and duration, when entering between when belonging to sensitization time section and duration and being more than default residence time, cable
The position of corresponding infrared probe and temporal information are notified remote service end by wireless communication module by anti-theft device, are realized antitheft
Early warning, the sensitization time section are 20:00-5:30, and the default residence time is 3min.
Monitoring method of the invention has the advantages that
(1) monitoring method judges cable situation based on the integrality of Steel armor of cable, since steel armour belongs to conductor structure,
Therefore the distal end of two Steel armor of cable being shorted can be formed into a loop, at this point, passing through the steel of cable anti-theft device thereto
Armour is powered, and cable anti-theft device monitors another loop voltage simultaneously can obtain cable situation, and the monitoring method is accurate, is easy to
Implement.
(2) monitoring method has the function of attack early warning by infrared probe group, in advance the stolen danger of precognition, record invasion
When and where, on the one hand can provide against hidden trouble, on the other hand can quickly be checked based on data in advance.
Detailed description of the invention
Fig. 1 is electrical block diagram of the invention；
Fig. 2 is surface structure schematic diagram of the invention；
Fig. 3 is installation application schematic diagram of the invention；
Fig. 4 is charging process schematic diagram in circuit of the present invention；
Fig. 5 is external power principle figure in circuit of the present invention；
Fig. 6 is central processing unit structure principle chart in circuit of the present invention；
Fig. 7 is the design drawing of processor STM32F405 in circuit of the present invention；
Fig. 8 is radio communication circuit schematic diagram in circuit of the present invention；
Fig. 9 is that USB turns TTL module and the connection figure of MY1680 in circuit of the present invention.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.Art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
As depicted in figs. 1 and 2, a kind of cable anti-theft device is connect including central processing unit and with central processing unit
Wireless communication module, serial communication circuit, interaction circuit, sound light alarming circuit, power circuit, signal processing circuit and invasion
Early warning circuit, the input terminal of signal processing circuit are connected with multi-way detecting delivery outlet, detection input port, in which: wireless telecommunications mould
Block can be received the remote control signal of server-side by GPS/GSM, satellite or wireless network mode and by the reality of cable monitoring
When result feed back to remote service end, remote service end includes mobile terminal or the end PC；Serial communication circuit is for connecting host computer；
Interaction circuit includes LCD display and multiple physical buttons, and LCD display is for showing that monitoring data, physical button are used
Family control input, as shown in Fig. 2, route only has 12 tunnels in Fig. 2, can be set 16 tunnels or more in actual work；Acousto-optic report
Alert circuit includes buzzer and LED light, central processing unit determine that cable to be monitored is impaired or function setting it is improper after, central processing
Device control buzzer works and controls LED light flashing alarm；Power circuit can be by external communication electricity, external dc electricity or interior
Portion's direct current is converted into power supply needed for device；Signal processing circuit is for the analog signal of multi-way detecting input port to be converted into counting
Word signal, and digital data transmission to central processing unit is handled；It detects delivery outlet and detection input port is connected by electric wire respectively
The steel armour of reception monitoring cable；Attack early warning circuit includes multiple infrared probes, and infrared probe is arranged in the line of cable to be monitored
On the road.
Specifically, user can carry out relevant operation by key, for example defence area setting, alarming determining are cancelled, alarm electricity
Words setting, detection function selection etc., in Fig. 2, the function of control panel is as follows: on output indicator signal to display board；It calculates
Processing input detection signal, including line voltage distribution detection signal and circuit on-off signal；The control letter of outlet line on-off detection
Number；Receive and save the information of human-computer interaction；Wireless communication module is controlled, relevant information is sended and received；Internal cell charging
Detection control；Alarm control signal is exported to display board；Receive and handle infrared alarm information.
It should be noted that anti-theft device shares 7 keys, be respectively " setting ", " determination ", " cancellation ", " to the left ",
" to the right ", " upward " and " downward " key.The first step presses " setting " key first, system is made to enter function after system normally starts
Menu can be set；Second step, entered function be arranged menu after, can press " determination ", " cancellation ", " to the left ", " to the right ",
" upward " and " downward " key carry out function selection or determination or cancellation.Third step, when being in facility information or phone information dish
Dan Shi presses " setting " key, can store 6 phone numbers with input equipment information or phone information, present apparatus phone.Input letter
Breath can only be number, and carry out digital selection with " upward " or " downward " key.Position selection is carried out with " to the left " or " to the right " key.
It after the completion of input, is saved and is inputted with " determination " key, cancelled with " cancellation " key and being saved.The switch setting of indicator light is also by " really
It is fixed ", " cancellation ", " to the left ", " to the right ", " upward " and " downward " key be arranged.
As shown in figure 3, the distal end of Steel armor of cable is shorted forming circuit using when the cable anti-theft device, then pass through electricity
Wireline inspection input port and the detection delivery outlet of cable anti-theft device are accessed in the proximal end of Steel armor of cable by line in sequence, at this point,
It is configured by physical button, the configuration of device can be completed.
Specifically, power circuit major function include the following: external dc input voltage and AC/DC electric power output voltage it
Between automatically switch, when AC/DC power supply has output voltage, disconnection external dc input voltage be system power supply, otherwise by outside
DC input voitage is system power supply；The voltage of internal cell is converted into the operating voltage of system, i.e., it is defeated without direct current when outside
When entering voltage and AC/DC power supply without output voltage, internal battery voltage is converted into the operating voltage of system.The power circuit can
To connect external communication 220V input and external dc input.External dc power is+12V DC power supply.Two class power supplys can be with
It accesses simultaneously, can also appoint and connect an input, when accessing simultaneously, effectively, running parameter is such as the input of system default external communication
Under: op:-25~+70 DEG C of work temperature；Ts:-40~+85 DEG C of storage temperature；Operating altitude height H :≤3500m；Work phase
To humidity: most wet moon monthly average maximum relative humidity is not more than 90%；Input supply voltage 1: 10~30VDC of direct current；Specified work
Make voltage 1: direct current 12VDC；Input supply voltage 2: 185~240VAC of exchange；Rated operational voltage 2: alternating current 220V AC；Switch
Amount input amplitude: 0~30Vdc of direct current；Exchange: 185~240VAC of exchange；Output switch parameter amplitude: 0~12Vdc；Electric current output
Range: 0~100mA.It should be noted that the present invention increases fuse in the front end of AC/DC module, prevent because in system
Portion's damage causes the influence to outside line.
The case where being disconnected due to system power supply there are external 220V AC power source, so internal use lithium battery as spare
Power supply power supply, while also increasing external dc power input interface.There are 220V exchange or outside to have DC power supply when outside
When input, the output voltage of AC/DC module or DC input voitage are converted into internal lithium battery by the charging circuit of internal system
Charging voltage, when external 220V AC power source or DC power supply disconnect, system automatically switches to lithium battery power supply.Work as outside
When 220V AC power source and DC power supply exist simultaneously, system is automatically selected is powered by external 220V AC power source.
Specifically, power circuit has used LTC4051 chip to be illustrated in figure 4 and fill as the core chips of battery management
Electric process schematic diagram is illustrated in figure 5 external power supply schematic diagram, wherein V4 is for system power supply and battery power switching
Switch.When there is electricity in outside, V4 is obstructed.When outside is without electricity, system power supply is given in V4 conducting.CELLS pin is for being arranged electricity
The sum in pond, CHEM pin are used to be arranged the type or voltage of battery.DVCC is the power supply of digital display circuit.It is mainly total for I2C
Line is powered as the power supply of single-chip microcontroller.It just can guarantee so consistent with logic level when single chip communication.SCL:I2C is serial
The clock of port inputs, the data input and output of SDA:I2C serial port.SMBALERT: the pin is that abnormal signal output refers to
Show pin, when 4015 detect one or more abnormal conditions, that is, exports low level, it is without exception, export high level.
UVCLFB: under-voltage electric current inhibits feedback pin, when input voltage is lower than threshold value, limits the maximum current of charging.Work as voltage
When as low as a limit value, shutdown charging.VC: current threshold ground compensation point, current control errors compensate amplifier input.RT:
By one resistance of external connection, for the switching frequency of LTC4015 to be arranged, i.e., external input voltage is become into battery charging electricity
The power switch frequency of pressure exactly controls the complementary switch frequency of V5V6.NTC: the input terminal of thermistor, for detecting battery
Temperature.NTCBIAS: temperature and resistance bias voltage output pin exports 1.2V, measures for NTC.EQ: equivalent mode, mainly
It is for lead-acid battery.Other situations ground connection.The working power of CSPM5:4015 chip interior system.Outside connects capacitor and does pressure stabilizing
And filtering.CCREFM, CCREFP are the reference resistance access pins of Coulomb meter, and the reference of battery capacity is calculated for Coulomb meter.
As shown in Figure 6 and Figure 7, central processing unit has used STM32F405 chip, and STM32F405 is based on ARM kernel
32 bit processors, high speed in-line memory built in STM32F405, flash memory are up to 1M byte, the backup SRAM of up to 4 kilobytes
With extensive enhanced I/O and the range APB bus for being connected to two peripheral equipments and ahb bus matrix more than 32.Meanwhile
STM32F405 provides three 12 ADC, two DAC, a low pass RTC, 12 general 16 bit timing devices, including two be used for
The PWM timer of motor control, two 32 general bit timing devices.One real randomizer RNG.Also have simultaneously
Standardization and advanced communication interface.The design of processor STM32F405 is as shown in fig. 7, when the central processing unit further includes
Clock circuit, FM24LC16 storage circuit etc., do not do excessive introduction herein.
It should be noted that STM32F405 processor is the processing core of whole system, external various types of signal is carried out
Logic judgment and processing.Function is as follows: on output indicator signal to display board；Calculation processing input detection signal, including line
Road voltage detection signal and circuit on-off signal；The control signal of outlet line on-off detection；Receive and save human-computer interaction
Information；Wireless communication module is controlled, relevant information is sended and received；Internal cell charging detection control；Export controlling alarm letter
Number arrive display board；Receive and handle infrared alarm information.
Specifically, wireless communication module uses the technical grade SIM800 chip of SIMCOM company, language can be realized with low-power consumption
The transmission of sound, SMS, data and facsimile message.SIM800 support four keep pouring in it is defeated, can the whole world use, relative to early version
SIM900A realizes upgrading.Module supports RS232 and TTL Interface Controller, it may be convenient to use computer or chip microcontroller
GSM/GPRS function, while module uses the measure of power supply reverse connection protection protection, effectively raises the reliability of module, such as schemes
Shown in 8.The module is powered using 3.9V, and the reception and transmitting terminal of RXD interface and TXD interface for data, SPK is main channel earpiece
Positive and negative anodes, MIC are the interface of Mike.MY1680-12P is that voice uses module, supports the dual decoding of Mp3, WAV format.In module
Set FLASH storage chip, 1-16M is optional, while can also external USB flash disk or USB data line connection computer replacement FLASH audio text
Part.SPK pin is that external passive loudspeaker, DACR and DACL export for left and right sound track signals, and ADKEY is realized a variety of by resistance value
Keypress function selection.Standard UART asynchronous serial port interface built in MY1680-12P is 3.3VTTL electric level interface, can pass through
MAX3226 chip is converted into RS232 level or turns TTL module and PC communication by USB being debugged.Fig. 9 is that USB turns TTL
The connection figure of module and MY1680.Specifically, totally 4, the antenna of the present apparatus, it is GPS/GSM antenna, wireless antenna, satellite respectively
GSM antenna and satellite SAT antenna.
It should be noted that wireless communication module can also use E32-TTL-100 chip.
In the present invention signal processing circuit used E32-TTL-100 wireless module, STM32F405 central processing unit and
KP4010 light is even, voltage detecting uses isolating transformer and the double insulation blocking of optocoupler.Specifically, when line voltage distribution is small
When 50V, device determines external cable without electricity, device investment detection；When voltage is greater than 50V, external cable electrification, dress are determined
It sets out of service.
It should be further noted that the device further includes multiple relays, multiple relays are separately positioned at signal
It manages between circuit and detection input port, relay is used for partition external circuit and internal circuit in the case where no signal input.
Specifically, relay disconnects internal wiring and outside line when not detecting；Internal detection circuitry and system signal processing electricity
Secondary isolation is carried out using optocoupler between road；Insulating sleeve is increased between external connection line, make detect connecting line between mutually every
From.Specifically, optocoupler uses the light-coupled isolation of KP4010 type.
It should be further noted that further including switching value I/O circuit and voltage adapter, the setting of switching value I/O circuit exists
Between signal processing circuit and detection input port, switching value I/O circuit is used to detect the input voltage of input port, voltage adapter
It is mounted between signal processing circuit and relay, the voltage that voltage adapter is used to will test input port is adjusted to signal processing
The range that circuit is capable of handling, when the input voltage for detecting input port belongs in preset range, detection input port passes through relay
Device is directly connected to signal processing circuit, and when the input voltage for detecting input port is more than in preset range, detection input port is successively
Pass through relay and voltage adapter connection signal processing circuit.Wherein, the specifically used SN74AHC245 of switching value I/O circuit is total
Line driving, SN74HC573 are latched, SN74HC138 decoding and P2801-4 light are even.
The monitoring method of cable anti-theft device in the present invention includes following operating procedure:
A1) wiring prepares: external power supply or internal cell power supply being connected to cable anti-theft device and by cable to be monitored
Steel armour distal end be shorted forming circuit, the steel armour of cable to be monitored is respectively connected to detection delivery outlet by electric wire and detection is defeated
One of wireless antenna, GSM/GPS antenna, satellite GSM antenna and satellite SAT antenna or a variety of antennas are connected to by entrance
Cable anti-theft device；
A2) electrifying startup: opening cable anti-theft device, and cable anti-theft device judgement access power supply type works as external communication
When electricity and external dc electricity access cable anti-theft device simultaneously, cable anti-theft device preferentially uses external communication electric；
A3) function is set: user is in such a way that the quantity of cable to be monitored, wireless telecommunications are arranged in interaction circuit, communication
The quantity of number and infrared probe；
A4) equipment self-inspection: after the completion of function setting, cable anti-theft device is directed to detection delivery outlet, detection input port one by one
It checks, the number of cables to be monitored according to setting determines whether wiring is correct, when wiring is correct, into next step；When connecing
When line is incorrect, the sound light alarming circuit of cable anti-theft device starts and passes through the specific fault message of display exhibits, until connecing
After line modification is correct, into next step；
A5) relay open circuit protection: after the completion of equipment self-inspection, for not used detection input port and detecting delivery outlet,
Cable anti-theft device controls corresponding relay partition external circuit and internal circuit；
A6) voltage judges: after the completion of equipment self-inspection, for used detection input port and detection delivery outlet, cable is anti-
It steals device and is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, the switching value I/O circuit in cable anti-theft device
The voltage of acquisition testing input port, when voltage is in preset range, cable anti-theft device enters real-time monitoring state；When voltage not
In preset range, the sound light alarming circuit of cable theft-prevention assembling device starts and passes through the specific fault message of display exhibits, right
The detection input port answered should first access the voltage adapter in cable anti-theft device and carry out voltage conditioning, until voltage is adjusted to pre-
If when range, cable anti-theft device enters real-time monitoring state；
A7) real-time monitoring: cable anti-theft device is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, electricity
The electric current of the real-time acquisition testing input port of the signal processing circuit of cable anti-theft device, when the electric current of detection input port is less than preset value
When, cable anti-theft device determines that cable to be monitored is compromised, and cable anti-theft device notifies remote service by wireless communication module
End；When the electric current for detecting input port is greater than preset value, cable anti-theft device determines that cable to be monitored is normal, continues to monitor；It needs
It is noted that detection electric current=supply voltage/line loop resistance, after steel armour is shorted, equipment is that constant voltage is powered to steel armour.
Specifically, after the cable of monitoring disconnects, sound and light alarm signal can be generated after the completion of system detection, it is concurrent in 30S
It send in short message to related mobile phone, and reserved alarm call can be dialed.Meanwhile system will pop up annunciator menu.It utilizes " upward "
" downward " key checks warning message, presses " determination " key and carries out alarming determining, sound and light alarm signal is cancelled at this time.
A8) power-off is closed: cable anti-theft device power-off, software systems are closed.
Further, in real-time monitoring step further include:
Cable anti-theft device has multiple infrared probes by attack early warning circuit connection, and infrared probe is distributed in electricity to be monitored
Near cable, when the area of coverage has heat biology to enter, cable anti-theft device obtains the position of corresponding infrared probe, and records entrance
Time and duration, when entering between when belonging to sensitization time section and duration and being more than default residence time, cable theft-prevention
The position of corresponding infrared probe and temporal information are notified remote service end by wireless communication module by device, are realized antitheft pre-
Alert, sensitization time section is 20:00-5:30, and presetting residence time is 3min.
Wherein, infrared probe uses pyroelectric infrared sensor, and pyroelectric infrared sensor introduces field-effect in structure
Pipe, its object is to complete impedance transformation.What it is due to the output of thermoelectricity member is charge signal, can not directly be used, thus is needed
Voltage form is converted into resistance.Therefore the N-channel technotron introduced should be connected into total leakage form to complete impedance and become
It changes.Pyroelectric infrared sensor is made of sensor measuring member, interferometric filter and field-effect tube adaptation three parts.It is answered when design
Certain thickness thin slice is made in high thermoelectric material, and plates metal electrode on its two sides, is then powered on and polarizes to it.
It should be noted that the quantity of infrared probe, number and corresponding position information are entered into system in advance, tool
When body is implemented, infrared probe can be equally distributed on cable run, also be may be mounted at and stolen hotspot, such as: cable
Neighbouring bridge opening, culvert or other concealment areas.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of cable anti-theft device, which is characterized in that including central processing unit and the channel radio being connect with central processing unit
Interrogate module, serial communication circuit, interaction circuit, sound light alarming circuit, power circuit, signal processing circuit and attack early warning electricity
Road, the input terminal of the signal processing circuit are connected with multi-way detecting delivery outlet, detection input port, in which:
The wireless communication module can receive the long-range control letter of server-side by GPS/GSM, satellite or wireless network mode
Number and the real-time results of cable monitoring are fed back into remote service end, the remote service end includes mobile terminal or the end PC；
The serial communication circuit is for connecting host computer；
The interactive circuit includes LCD display and multiple physical buttons, and the LCD display is for showing monitoring data, institute
Physical button is stated to input for user's control；
The sound light alarming circuit includes buzzer and LED light, and central processing unit determines that cable to be monitored is impaired or function is arranged
After improper, central processing unit control buzzer works and controls LED light flashing alarm；
External communication electricity, external dc electricity or internal direct current electricity can be converted into power supply needed for device by the power circuit；
The signal processing circuit is used to the analog signal of multi-way detecting input port being converted into digital signal, and by digital signal
It is transmitted to central processing unit processing；
The detection delivery outlet passes through the steel armour that electric wire connects cable to be monitored with input port is detected respectively；
The attack early warning circuit includes multiple infrared probes, and the infrared probe is arranged on the route of cable to be monitored and people
The mechanical entrance of member.
2. cable anti-theft device as described in claim 1, which is characterized in that further include multiple relays, the multiple relay
Device is separately positioned between signal processing circuit and detection input port, and it is outer that relay is used for partition in the case where no signal input
Portion's circuit and internal circuit.
3. cable anti-theft device as claimed in claim 2, which is characterized in that further include switching value I/O circuit and voltage adaptation
Device, between signal processing circuit and detection input port, switching value I/O circuit is defeated for detecting for the switching value I/O circuit setting
The input voltage of entrance, the voltage adapter are mounted between signal processing circuit and relay, and voltage adapter is used for will
Detection input port voltage be adjusted to the range that signal processing circuit is capable of handling, when detection input port input voltage belong to it is pre-
If when in range, detecting input port by relay and being directly connected to signal processing circuit, when the input voltage of detection input port is super
When crossing in preset range, detection input port passes sequentially through relay and voltage adapter connection signal processing circuit.
4. cable anti-theft device as claimed in claim 3, which is characterized in that the wireless communication module includes SIM800 chip
With MY1860 chip.
5. cable anti-theft device as claimed in claim 4, which is characterized in that the power circuit includes LTC4051 chip.
6. cable anti-theft device as claimed in claim 5, which is characterized in that the central processing unit includes STM32F405 core
Piece.
7. cable anti-theft device as claimed in claim 6, which is characterized in that voltage detecting uses in the signal processing circuit
Isolating transformer and the double insulation blocking of optocoupler.
8. the monitoring method of the cable anti-theft device as described in claim 1 to 7 any one, which is characterized in that including such as
Lower operating procedure:
A1) wiring prepares: external power supply or internal cell power supply being connected to cable anti-theft device and by the steel of cable to be monitored
Armour distal end is shorted forming circuit, and the steel armour of cable to be monitored is respectively connected to detection delivery outlet by electric wire and detection inputs
Mouthful, one of wireless antenna, GSM/GPS antenna, satellite GSM antenna and satellite SAT antenna or a variety of antennas are connected to electricity
Cable anti-theft device；
A2) electrifying startup: opening cable anti-theft device, cable anti-theft device judgement access power supply type, when external communication electricity and
When external dc electricity accesses cable anti-theft device simultaneously, cable anti-theft device preferentially uses external communication electric；
A3) function is set: user is in such a way that the quantity of cable to be monitored, wireless telecommunications are arranged in interaction circuit, communication number
With the quantity of infrared probe；
A4) equipment self-inspection: after the completion of function setting, cable anti-theft device checks one by one for detection delivery outlet, detection input port,
Number of cables to be monitored according to setting determines whether wiring is correct, when wiring is correct, into next step；When wiring not just
When true, the sound light alarming circuit of cable anti-theft device starts and passes through the specific fault message of display exhibits, until wiring is modified
After correct, into next step；
A5) relay open circuit protection: after the completion of equipment self-inspection, for not used detection input port and detection delivery outlet, cable
Anti-theft device controls corresponding relay partition external circuit and internal circuit；
A6) voltage judges: after the completion of equipment self-inspection, for used detection input port and detection delivery outlet, cable theft-prevention dress
It sets and is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, the switching value I/O circuit acquisition in cable anti-theft device
The voltage of input port is detected, when voltage is in preset range, cable anti-theft device enters real-time monitoring state；When voltage is not pre-
If when range, the sound light alarming circuit of cable theft-prevention assembling device starts and passes through the specific fault message of display exhibits, corresponding
Detection input port should first access the voltage adapter in cable anti-theft device and carry out voltage conditioning, until voltage is adjusted to default model
When enclosing, cable anti-theft device enters real-time monitoring state；
A7) real-time monitoring: cable anti-theft device is powered by detection delivery outlet to the steel armour constant voltage of cable to be monitored, and cable is anti-
The electric current for stealing the real-time acquisition testing input port of signal processing circuit of device, when the electric current for detecting input port is less than preset value,
Cable anti-theft device determines that cable to be monitored is compromised, and cable anti-theft device notifies remote service end by wireless communication module；
When the electric current for detecting input port is greater than preset value, cable anti-theft device determines that cable to be monitored is normal, continues to monitor；
A8) power-off is closed: cable anti-theft device power-off, software systems are closed.
9. the monitoring method of cable anti-theft device as claimed in claim 8, which is characterized in that in the real-time monitoring step also
Include:
Cable anti-theft device has multiple infrared probes by attack early warning circuit connection, and the infrared probe is distributed in electricity to be monitored
Near cable, when the area of coverage has heat biology to enter, cable anti-theft device obtains the position of corresponding infrared probe and believes position
Breath and temporal information realize anti-theft early-warning by wireless communication module notice remote service end.
10. the monitoring method of cable anti-theft device as claimed in claim 9, which is characterized in that in the real-time monitoring step
Further include:
Cable anti-theft device has multiple infrared probes by attack early warning circuit connection, and the infrared probe is distributed in electricity to be monitored
Near cable, when the area of coverage has heat biology to enter, cable anti-theft device obtains the position of corresponding infrared probe, and records entrance
Time and duration, when entering between when belonging to sensitization time section and duration and being more than default residence time, cable theft-prevention
The position of corresponding infrared probe and temporal information are notified remote service end by wireless communication module by device, are realized antitheft pre-
Alert, the sensitization time section is 20:00-5:30, and the default residence time is 3min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786218.7A CN110361634A (en) | 2019-08-24 | 2019-08-24 | A kind of cable anti-theft device and its monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786218.7A CN110361634A (en) | 2019-08-24 | 2019-08-24 | A kind of cable anti-theft device and its monitoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028457A (en) * | 2019-11-02 | 2020-04-17 | 国网上海市电力公司 | Anti-theft tracking system of insulated overhead conductor |
| CN117351626A (en) * | 2023-09-29 | 2024-01-05 | 南京派光智慧感知信息技术有限公司 | Security induction detection system and method |
-
2019
- 2019-08-24 CN CN201910786218.7A patent/CN110361634A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028457A (en) * | 2019-11-02 | 2020-04-17 | 国网上海市电力公司 | Anti-theft tracking system of insulated overhead conductor |
| CN117351626A (en) * | 2023-09-29 | 2024-01-05 | 南京派光智慧感知信息技术有限公司 | Security induction detection system and method |
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