CN208847808U - A kind of power cable Anti-theft detection device - Google Patents
A kind of power cable Anti-theft detection device Download PDFInfo
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- CN208847808U CN208847808U CN201821460218.5U CN201821460218U CN208847808U CN 208847808 U CN208847808 U CN 208847808U CN 201821460218 U CN201821460218 U CN 201821460218U CN 208847808 U CN208847808 U CN 208847808U
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Abstract
The utility model relates to a kind of power cable Anti-theft detection devices.Including one-chip computer module, the antitheft detection module of power cable, power supply module, wireless communication module；One-chip computer module includes single-chip microcontroller and the SCM peripheral circuit connecting with the single-chip microcontroller；The antitheft detection module of power cable includes rectifier bridge, photoisolator, first to 3rd resistor, two input terminals of rectifier bridge respectively with power cable zero, firewire connection, first output end of rectifier bridge is connected through the first input end of first resistor and photoisolator, the second output terminal of rectifier bridge is connected through the second input terminal of second resistance and photoisolator, first output end of photoisolator is connect through 3rd resistor with the end+3.3V, first output end of photoisolator is also connect with an input terminal of single-chip microcontroller, the second output terminal of photoisolator is connected to GND.The utility model circuit structure is simple, easy for installation, can be realized the wireless transmission of alarm signal, improves the accuracy of power cable burglar alarm, and it is timely to alarm.
Description
Technical field
The utility model relates to a kind of power cable Anti-theft detection devices.
Background technique
Existing highway Stealing-proof Alarming System for Power Cable mainly uses PLC technology at home at present, and traditional
Carrier technology be applied to highway tunnel street lamp and monitoring device low-voltage power supply operating condition under have the following problems: it is traditional
Technological means is to realize cable detection using carrier technology, due to freeway tunnel street lamp and monitoring device category low-voltage circuit,
And route is embedded in underground, and line-hit is stronger, and certain technical indicators have certain difference with when becoming a fine day in the moist and rainy day, according to
Experience and engineering experiment in terms of product development prove: carrier transmission technique is difficult to protect in the reliability of the antitheft aspect of road lighting cable
Card, and higher cost.
The application proposes a kind of a power cable anti-theft journal developed for the protection of highway power cable thus
The features such as alert product, having alarm, accuracy rate is high in time, easy for installation, can whole day whenever, under any environment it is normal
Work, fundamentally solves that cable theft-prevention is steady in a long-term and integrity problem.It can be widely applied for highway, municipal road
Most of electricity utilization sites such as lamp, industrial factories and miness.
Summary of the invention
The purpose of this utility model is to provide a kind of power cable Anti-theft detection devices, and the apparatus structure is simple, installation
It is convenient, it can be realized the wireless transmission of alarm signal, improve the accuracy of power cable burglar alarm, and it is timely to alarm.
To achieve the above object, the technical solution of the utility model is: a kind of power cable Anti-theft detection device, including list
Piece machine module, the antitheft detection module of power cable, the power supply module for powering for whole device, for realizing single-chip microcontroller
The wireless communication module that module and host computer carry out wireless communication；The one-chip computer module includes single-chip microcontroller and connects with the single-chip microcontroller
The SCM peripheral circuit connect；The antitheft detection module of power cable includes rectifier bridge, photoisolator, first to third electricity
Resistance, two input terminals of rectifier bridge connects with the zero of power cable, firewire respectively, the first output end of rectifier bridge through first resistor and
The first input end of photoisolator connects, and the second output terminal of rectifier bridge is through the second of second resistance and photoisolator the input
End connection, the first output end of photoisolator are connect through 3rd resistor with the end+3.3V, and the first output end of photoisolator is also
It is connect with an input terminal of single-chip microcontroller, the second output terminal of photoisolator is connected to GND.
In an embodiment of the utility model, the wireless communication module is GPRS wireless communication module.
In an embodiment of the utility model, the power supply module includes that AC220V turns DC24V module, 24V turns 5V
Module, 5V turn 3.3V module and power supply switching module.
In an embodiment of the utility model, the AC220V turns DC24V module and is converted to AC220V by transformer
DC24V, the transformer use EI48.
In an embodiment of the utility model, it includes voltage conversion chip LM1117-5, diode that the 24V, which turns 5V module,
D5, D6, D8, capacitor C9, C10, resistance R14, R17；AC220V turns the+24V of DC24V module output through D6, R17 and LM1117-5
IN pin, D5 cathode connection, the GND pin of LM1117-5 and the anode of D5, one end of C9, C10 one end be connected and be connected to
The anode connection of the OUT pin of GND, LM1117-5, the other end of PAD pin and C9, the other end of C10, D8, and conduct+5V
End, the cathode of D8 are connected to GND through R14.
In an embodiment of the utility model, it includes resistance R9, R15 that the 5V, which turns 3.3V module, capacitor C12, C13,
C14, voltage conversion chip LM1117-3.3, relay and 5V battery；24V turn 5V module output+5V and C12 one end,
One end connection of one end of C13, one end of R15, the IN pin of LM1117-3.3, relay normally closed switch, the other end warp of R15
R9 is connected to GND, and the other end of R15 is also connect with another input terminal of single-chip microcontroller, the other end and 5V of relay normally closed switch
The anode connection of battery, the cathode and the other end of C12 of 5V battery, the other end of C13, LM1117-3.3 GND pin, C14
One end be connected and be connected to GND, the other end of the OUT pin of LM1117-3.3, PAD pin and C14 connects, and the end conduct+3.3V.
In an embodiment of the utility model, the power supply switching module includes triode, resistance R10, R11, triode
Collector be connected to the end+5V that 24V turns the output of 5V module through relay control coil, the one of the emitter of triode and R11
End, which is connected, is connected to GND, and the base stage of triode is connected with one end of the other end of R11, R10, the other end of R10 and single-chip microcontroller
The connection of one output end.
In an embodiment of the utility model, the SCM peripheral circuit include the crystal oscillating circuit being connect with single-chip microcontroller,
Reset circuit, start-up circuit.
In an embodiment of the utility model, the single-chip microcontroller supply voltage is 3.3V.
Compared to the prior art, the utility model has the following beneficial effects: utility model device structure is simple, installation
It is convenient, it can be realized the wireless transmission of alarm signal, improve the accuracy of power cable burglar alarm, and it is timely to alarm.
Detailed description of the invention
Fig. 1 is the utility model one-chip computer module circuit diagram.
Fig. 2 is the antitheft detection module circuit diagram of the utility model power cable.
Fig. 3 is that the utility model AC220V turns DC24V module circuit schematic.
Fig. 4 is that the utility model 24V turns 5V module circuit schematic.
Fig. 5 is that the utility model 5V turns 3.3V module circuit schematic.
Fig. 6 is the utility model power supply switching module circuit diagram.
Fig. 7 is the utility model wireless communication module circuit diagram.
Specific embodiment
The technical solution of the utility model is specifically described in 1-7 with reference to the accompanying drawing.
The utility model provides a kind of power cable Anti-theft detection device, including one-chip computer module, power cable are antitheft
Detection module, the power supply module for powering for whole device carry out wirelessly for realizing one-chip computer module and host computer
The wireless communication module (GPRS wireless communication module) of communication；The one-chip computer module includes that single-chip microcontroller (uses
STM32F103C8T6, supply voltage 3.3V) and connect with the single-chip microcontroller SCM peripheral circuit (including crystal oscillating circuit,
Reset circuit, start-up circuit etc.)；The antitheft detection module of power cable includes rectifier bridge, photoisolator, first to third
Resistance, two input terminals of rectifier bridge are connect with the zero of power cable, firewire respectively, and the first output end of rectifier bridge is through first resistor
It is connect with the first input end of photoisolator, the second output terminal of rectifier bridge is defeated through the second of second resistance and photoisolator
Enter end connection, the first output end of photoisolator is connect through 3rd resistor with the end+3.3V, the first output end of photoisolator
It is also connect with an input terminal of single-chip microcontroller, the second output terminal of photoisolator is connected to GND.
The power supply module includes that AC220V turns DC24V module, 24V turns 5V module, 5V turns 3.3V module and electricity
Source switching module.The AC220V turns DC24V module and AC220V is converted to DC24V by transformer, and the transformer uses
EI48.It includes voltage conversion chip LM1117-5, diode D5, D6, D8, capacitor C9, C10, resistance that the 24V, which turns 5V module,
R14,R17；AC220V turns the cathode connection of IN pin, D5 of the+24V of DC24V module output through D6, R17 and LM1117-5,
The GND pin of LM1117-5 and the anode of D5, one end of C9, C10 one end be connected and be connected to GND, the OUT pin of LM1117-5,
The anode connection of the other end of PAD pin and C9, the other end of C10, D8, and the end conduct+5V, the cathode of D8 are connected to through R14
GND.It includes resistance R9, R15, capacitor C12, C13, C14 that the 5V, which turns 3.3V module, voltage conversion chip LM1117-3.3, after
Electric appliance and 5V battery；24V turns+5V and one end of C12, one end of C13, one end of R15, LM1117-3.3 of 5V module output
IN pin, relay normally closed switch one end connection, the other end of R15 is connected to GND through R9, the other end of R15 also with list
Another input terminal of piece machine connects, and the other end of relay normally closed switch is connect with the anode of 5V battery, the cathode of 5V battery and
The other end of C12, the other end of C13, the GND pin of LM1117-3.3, C14 one end be connected be connected to GND, LM1117-3.3's
The other end of OUT pin, PAD pin and C14 connects, and the end conduct+3.3V.The power supply switching module includes triode, electricity
R10, R11 are hindered, the collector of triode is connected to the end+5V that 24V turns the output of 5V module through relay control coil, triode
Emitter is connected with one end of R11 is connected to GND, and the base stage of triode is connected with one end of the other end of R11, R10, R10's
The connection of one output end of the other end and single-chip microcontroller.
The working principle of the utility model power cable Anti-theft detection device is as follows:
5V battery turns 3.3V module by 5V as single-chip microcontroller power supply, starts one-chip computer module, single-chip microcontroller by start-up circuit
Module is started to work, at this point, if the antitheft detection module of power cable detects that power cable has electricity, the corresponding I/O of single-chip microcontroller
It detects signal, and after processing, module sends a signal to host computer by wireless communication, informs that host computer power cable is normal,
It is not stolen, at this point, single-chip microcontroller is electric by obtaining the relay control coil K5B of power supply switching module, control relay is normally closed
Switch K5A is disconnected, and disconnects battery power supply, turns to turn DC24V module, 24V turn by AC220V by the 220V alternating current of power cable
5V module, 5V turn 3.3V module as single-chip microcontroller power supply, and if power cable without electricity, since the relay of power supply switching module controls
Coil K5B power loss, so that relay normally closed switch K5A return to primitive age closed state, powers to single-chip microcontroller by 5V battery, it is single at this time
Piece machine can not also obtain electric signal from the antitheft detection module of power cable, and module is sent a signal to single-chip microcontroller by wireless communication
Position machine is informed that host computer power cable state is abnormal, may be stolen.In addition, as shown in Figure 5, single-chip microcontroller can also detect
The electricity of 5V battery reminds user to replace battery in time with this.
It is the preferred embodiment of the utility model above, it is all to change according to made by technical solutions of the utility model, it is produced
Function without departing from technical solutions of the utility model range when, belong to the protection scope of the utility model.
Claims (9)
1. a kind of power cable Anti-theft detection device, which is characterized in that including one-chip computer module, the antitheft detection mould of power cable
Block, carries out wireless communication for realizing one-chip computer module and host computer the power supply module for powering for whole device
Wireless communication module；The one-chip computer module includes single-chip microcontroller and the SCM peripheral circuit connecting with the single-chip microcontroller；The electricity
Power cable theft-prevention detection module includes rectifier bridge, photoisolator, first to 3rd resistor, two input terminals of rectifier bridge respectively with
Power cable zero, firewire connection, the first output end of rectifier bridge connects through the first input end of first resistor and photoisolator
It connecing, the second output terminal of rectifier bridge is connected through the second input terminal of second resistance and photoisolator, and the first of photoisolator
Output end is connect through 3rd resistor with the end+3.3V, and the first output end of photoisolator is also connect with an input terminal of single-chip microcontroller,
The second output terminal of photoisolator is connected to GND.
2. a kind of power cable Anti-theft detection device according to claim 1, which is characterized in that the wireless communication module
For GPRS wireless communication module.
3. a kind of power cable Anti-theft detection device according to claim 1, which is characterized in that the power supply module
Turn DC24V module including AC220V, 24V turns 5V module, 5V turns 3.3V module and power supply switching module.
4. a kind of power cable Anti-theft detection device according to claim 3, which is characterized in that the AC220V turns
AC220V is converted to DC24V by transformer by DC24V module, and the transformer uses EI48.
5. a kind of power cable Anti-theft detection device according to claim 3, which is characterized in that the 24V turns 5V module
Including voltage conversion chip LM1117-5, diode D5, D6, D8, capacitor C9, C10, resistance R14, R17；AC220V turns DC24V
The cathode connection of the IN pin of+24V through D6, R17 and LM1117-5, D5 of module output, the GND pin of LM1117-5 and D5's
Anode, one end of C9, C10 one end be connected be connected to GND, the OUT pin of LM1117-5, the other end of PAD pin and C9, C10
The other end, D8 anode connection, and the end conduct+5V, the cathode of D8 are connected to GND through R14.
6. a kind of power cable Anti-theft detection device according to claim 3, which is characterized in that the 5V turns 3.3V module
Including resistance R9, R15, capacitor C12, C13, C14, voltage conversion chip LM1117-3.3, relay and 5V battery；24V turns
+ the 5V of 5V module output and one end of C12, one end of C13, one end of R15, IN pin, the relay of LM1117-3.3 are normally closed
One end of switch connects, and the other end of R15 is connected to GND through R9, and the other end of R15 also connects with another input terminal of single-chip microcontroller
Connect, the other end of relay normally closed switch is connect with the anode of 5V battery, the other end of the cathode of 5V battery and C12, C13 it is another
One end, the GND pin of LM1117-3.3, C14 one end be connected and be connected to GND, the OUT pin of LM1117-3.3, PAD pin with
The other end of C14 connects, and the end conduct+3.3V.
7. a kind of power cable Anti-theft detection device according to claim 6, which is characterized in that the power supply switching module
Including triode, resistance R10, R11, the collector of triode through relay control coil be connected to 24V turn the output of 5V module+
The end 5V, the emitter of triode is connected with one end of R11 is connected to GND, one end of the other end of the base stage of triode and R11, R10
It is connected, the other end of R10 and an output end of single-chip microcontroller connect.
8. a kind of power cable Anti-theft detection device according to claim 1, which is characterized in that the SCM peripheral electricity
Road includes the crystal oscillating circuit, reset circuit, start-up circuit connecting with single-chip microcontroller.
9. a kind of power cable Anti-theft detection device according to claim 1, which is characterized in that the single-chip microcontroller power supply electricity
Pressure is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821460218.5U CN208847808U (en) | 2018-09-07 | 2018-09-07 | A kind of power cable Anti-theft detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821460218.5U CN208847808U (en) | 2018-09-07 | 2018-09-07 | A kind of power cable Anti-theft detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208847808U true CN208847808U (en) | 2019-05-10 |
Family
ID=66371546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821460218.5U Active CN208847808U (en) | 2018-09-07 | 2018-09-07 | A kind of power cable Anti-theft detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208847808U (en) |
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2018
- 2018-09-07 CN CN201821460218.5U patent/CN208847808U/en active Active
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