CN208325149U - A kind of shared electric car protection alarm device - Google Patents
A kind of shared electric car protection alarm device Download PDFInfo
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- CN208325149U CN208325149U CN201820393869.0U CN201820393869U CN208325149U CN 208325149 U CN208325149 U CN 208325149U CN 201820393869 U CN201820393869 U CN 201820393869U CN 208325149 U CN208325149 U CN 208325149U
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Abstract
The utility model discloses a kind of shared electric car protection alarm devices, including power-sensing circuit, frequency modulation amplifying circuit and triode pressure stabilizing warning circuit, MA2482D power sensor U1 acquires power when shared electric car security system work, and be converted into analog signal output to frequency modulation amplifying circuit input terminal, ratio enlargement in transport and placing device A1 is sent into after frequency modulation amplifying circuit is adjusted by Order RC filtering frequency-selecting, triode VT1, resistance R7 and zener diode DZ1 composition triode voltage regulator circuit carries out pressure stabilizing to signal, driving metal-oxide-semiconductor Q1 grid continually and steadily can obtain forward conduction voltage, relay K1 obtain it is electric make its normally opened contact be closed, to make alarm lamp LED and buzzer BELL obtain electric sending sound and light alarm signal, make shared electric car protection alarm device With good stability and reliability.
Description
Technical field
The utility model relates to share electric car field, filled more particularly to a kind of shared electric car security alarm
It sets.
Background technique
Shared electric car is an important trend of automobile industry future development, it is with unattended, online or mobile phone
The features such as end reservation, attracts people's use, but shares electric car simultaneously and also therefore much destroyed, so in shared electricity
It is essential to install protection alarm device on electrical automobile additional, and the shared electric car protection alarm device of existing market is in security protection report
When alert system is by attacking, usually occur causing to alarm because spread of voltage occurs in transmission process in the signal to attack detected
The phenomenon that failure.
So the utility model provides the new scheme of one kind to solve the problems, such as this.
Utility model content
For above situation, for the defect for overcoming the prior art, the utility model is designed to provide a kind of shared electricity
Electrical automobile protection alarm device, have be skillfully constructed, the characteristic of human oriented design, signal to attack can be effectively improved and transmitted
The stability of voltage in the process.
Its technical solution solved is a kind of shared electric car protection alarm device, including power-sensing circuit, frequency modulation
Amplifying circuit and triode pressure stabilizing warning circuit, the power-sensing circuit detect when shared electric car security system works
Power, and be converted into analog signal and be sent into frequency modulation amplifying circuit, it is sent into transport and placing device A1 and compares after Order RC filtering frequency-selecting is adjusted
Example amplification is re-fed into triode pressure stabilizing warning circuit and stablizes signal voltage, once shared electric car security system is attacked
It hits, alarm lamp and buzzer issue sound and light alarm signal at once；
The power-sensing circuit includes the power sensor U1 of model MA2482D, and power sensor U1 is total by acquisition
The power when work of electric car security system is enjoyed, and is converted into analog signal and is output to frequency modulation amplifying circuit in its output port
Input terminal, the power end of power sensor U1 connect with one end of resistance R1, the other end of resistance R1 and one end of capacitor C1
It is connected with+5V power supply, the other end ground connection of capacitor C1, the ground terminal ground connection of power sensor U1.
Preferably, the frequency modulation amplifying circuit includes transport and placing device A1, the noninverting input of transport and placing device A1 by resistance R2 and
Capacitor C2 forms the output that low-pass filter, capacitor C3 and resistance R3 form reception power-sensing circuit after high pass filter, processes
Feedback signal a part of signal, transport and placing device A1 flows between low-pass filter and high-pass filter through resistance R4, another part
The reverse input end of transport and placing device A1 is flowed into through resistance R5, the reverse input end of transport and placing device A1 is grounded by resistance R6.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. shared electric car security system is by attacking, MA2482D power sensor U1 detects that exception is high-power,
After low pass, high-pass filtering carry out frequency adjusting to power sensor U1 output signal, by transport and placing device A1 by signal voltage ratio
Example amplification, driving metal-oxide-semiconductor Q1 grid reaches forward conduction voltage after triode voltage regulator circuit is stablized, and relay K1, which is obtained, electric makes it
Normally opened contact closure, so that alarm lamp LED and buzzer BELL be made to obtain electric sending sound and light alarm signal, circuit design is simply skilful
It is wonderful, there is good practical value and Development volue.
2. the signal voltage amplitude after transport and placing device A1 ratio enlargement has certain unstability, it may result in alarm and drive
Dynamic failure receives the defeated of transport and placing device A1 using triode VT1, resistance R7 and zener diode DZ1 composition triode voltage regulator circuit
Signal out, when shared electric car security system is by attacking, what MOS pipe Q1 grid can be continual and steady obtains positive guide
Be powered pressure, and shared electric car protection alarm device is made to have good stability and reliability.
Detailed description of the invention
Fig. 1 is a kind of circuit module figure of shared electric car protection alarm device of the utility model.
Fig. 2 is a kind of circuit diagram of shared electric car protection alarm device of the utility model.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached
Fig. 2 can be clearly presented in the detailed description of embodiment.The structure content being previously mentioned in following embodiment is to say
Bright book attached drawing is reference.
Embodiment one, a kind of shared electric car protection alarm device, including power-sensing circuit, frequency modulation amplifying circuit and
Triode pressure stabilizing warning circuit, the power-sensing circuit detects power when shared electric car security system work, and turns
It turns to analog signal and is sent into frequency modulation amplifying circuit, be sent into ratio enlargement in transport and placing device A1 after Order RC filtering frequency-selecting is adjusted, then
Feeding forms triode voltage regulator circuit by triode VT1, resistance R7 and zener diode DZ1 and stablizes to signal voltage value,
Improve the stability of signal to attack voltage in transmission process；
The power-sensing circuit acquires shared electric car security protection system using the power sensor U1 of model MA2482D
Power when system work, and it is converted into the input terminal that analog signal is output to frequency modulation amplifying circuit in its output port, power passes
The power end of sensor U1 is connect with one end of resistance R1, and the other end of resistance R1 is connect with one end of capacitor C1 and+5V power supply, electricity
Hold the other end ground connection of C1, the ground terminal ground connection of power sensor U1.
Embodiment two, on the basis of example 1, the frequency modulation amplifying circuit are low using resistance R2 and capacitor C2 composition
The output signal of bandpass filter, capacitor C3 and resistance R3 composition high pass filter, processes power-sensing circuit, low pass, high-pass filtering
Device forms second order RC network and signal frequency is adjusted, and improves the accuracy of signal frequency, is re-fed into the in the same direction of transport and placing device A1
Input terminal carries out ratio enlargement to signal, and feedback signal a part of transport and placing device A1 flows into low-pass filter and high pass through resistance R4
Between filter, another part flows into the reverse input end of transport and placing device A1 through resistance R5, and the reverse input end of transport and placing device A1 passes through
Resistance R6 ground connection, the output end of transport and placing device A1 are connect with the input terminal of triode pressure stabilizing warning circuit.
Embodiment three, on the basis of example 2, the signal voltage amplitude after transport and placing device A1 ratio enlargement have certain
Unstability, may result in alarm driving failure, using triode VT1, resistance R7 and zener diode DZ1 form three poles
Pipe voltage regulator circuit receives the output signal of transport and placing device A1, when shared electric car security system is by attacking, triode pressure stabilizing
Circuit output voltage allow MOS pipe Q1 grid it is continual and steady obtain forward conduction voltage, relay K1, which is obtained, electric keeps its normally opened
Contact closure makes shared electric car security protection report so that alarm lamp LED and buzzer BELL be made to obtain electric sending sound and light alarm signal
Alarm device has good stability and reliability, wherein the collector of triode VT1 and one end of resistance R7 and transport and placing device A1
Output end connection, the base stage of triode VT1 connect with the cathode of the other end of resistance R7 and zener diode DZ1, pressure stabilizing two
The emitter of the plus earth of pole pipe DZ1, triode VT1 is connect with the grid of metal-oxide-semiconductor Q1, the source electrode ground connection of metal-oxide-semiconductor Q1, MOS
The drain electrode of pipe Q1 is connect with one end of relay K1 coil, and the other end of relay K1 coil is connected by resistance R8 and+12V power supply
Connect, one end of relay K1 normally opened contact is connect by resistance R9 with+12V power supply, the other end of relay K1 normally opened contact and
One end of resistance R10, R11 connect, and the other end of resistance R10 is connect with the anode of alarm lamp LED, and the cathode of alarm lamp LED connects
Ground, the other end of resistance R11 are connect with the anode of buzzer BELL, the cathode ground connection of buzzer BELL.
When the utility model is specifically used, when shared electric car security system is by attacking, MA2482D power sensing
Device U1 detects that exception is high-power, after low pass, high-pass filtering carry out frequency adjusting to power sensor U1 output signal, by
By signal voltage ratio enlargement, the signal voltage amplitude after transport and placing device A1 ratio enlargement has certain unstable transport and placing device A1
Property, it may result in alarm driving failure, using triode VT1, resistance R7 and zener diode DZ1 composition triode pressure stabilizing electricity
Road receives the output signal of transport and placing device A1, what driving MOS pipe Q1 grid can be continual and steady after triode voltage regulator circuit is stablized
Obtain forward conduction voltage, relay K1 obtain it is electric be closed its normally opened contact, so that it is electric to obtain alarm lamp LED and buzzer BELL
Sound and light alarm signal is issued, makes shared electric car protection alarm device that there is good stability and reliability.
The above is to combine specific embodiment further detailed description of the utility model, and it cannot be said that originally
Utility model specific implementation is limited only to this；Belonging to the utility model and for those skilled in the technology concerned,
Under the premise of technical solutions of the utility model thinking, made expansion and the replacement of operating method, data should all be fallen in
Within scope of protection of the utility model.
Claims (3)
1. a kind of shared electric car protection alarm device, including power-sensing circuit, frequency modulation amplifying circuit and triode pressure stabilizing
Warning circuit, which is characterized in that the power-sensing circuit detects power when shared electric car security system work, and turns
It turns to analog signal and is sent into frequency modulation amplifying circuit, be sent into ratio enlargement in transport and placing device A1 after Order RC filtering frequency-selecting is adjusted, then
Triode pressure stabilizing warning circuit is sent into stablize signal voltage, once shared electric car security system is attacked, alarm lamp
Sound and light alarm signal is issued at once with buzzer；
The power-sensing circuit includes the power sensor U1 of model MA2482D, and power sensor U1 is shared electric by acquisition
Power when electrical automobile security system works, and be converted into analog signal and be output to the defeated of frequency modulation amplifying circuit in its output port
Enter end, the power end of power sensor U1 is connect with one end of resistance R1, the other end of resistance R1 and one end of capacitor C1 and+5V
Power supply connection, the other end ground connection of capacitor C1, the ground terminal ground connection of power sensor U1.
2. a kind of shared electric car protection alarm device as described in claim 1, which is characterized in that the frequency modulation amplifying circuit
Including transport and placing device A1, the noninverting input of transport and placing device A1 forms low-pass filter, capacitor C3 and electricity by resistance R2 and capacitor C2
Hinder the output signal that R3 forms reception power-sensing circuit after high pass filter, processes, feedback signal a part warp of transport and placing device A1
Resistance R4 is flowed between low-pass filter and high-pass filter, and another part flows into the reversed input of transport and placing device A1 through resistance R5
End, the reverse input end of transport and placing device A1 are grounded by resistance R6.
3. a kind of shared electric car protection alarm device as claimed in claim 2, which is characterized in that the triode pressure stabilizing report
Alert circuit includes triode VT1, and triode VT1, resistance R7 and zener diode DZ1 composition triode voltage regulator circuit receive amplifier
The collector of the output signal of device A1, triode VT1 is connect with the output end of one end of resistance R7 and transport and placing device A1, triode
The base stage of VT1 is connect with the cathode of the other end of resistance R7 and zener diode DZ1, the plus earth of zener diode DZ1, and three
The emitter of pole pipe VT1 is connect with the grid of metal-oxide-semiconductor Q1, the source electrode ground connection of metal-oxide-semiconductor Q1, the drain electrode of metal-oxide-semiconductor Q1 and relay K1
One end of coil connects, and the other end of relay K1 coil is connect by resistance R8 with+12V power supply, relay K1 normally opened contact
One end connect with+12V power supply by resistance R9, the other end of relay K1 normally opened contact and one end company of resistance R10, R11
Connect, the other end of resistance R10 connect with the anode of alarm lamp LED, the cathode ground connection of alarm lamp LED, the other end of resistance R11 and
The anode connection of buzzer BELL, the cathode ground connection of buzzer BELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393869.0U CN208325149U (en) | 2018-03-22 | 2018-03-22 | A kind of shared electric car protection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393869.0U CN208325149U (en) | 2018-03-22 | 2018-03-22 | A kind of shared electric car protection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208325149U true CN208325149U (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820393869.0U Expired - Fee Related CN208325149U (en) | 2018-03-22 | 2018-03-22 | A kind of shared electric car protection alarm device |
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| Country | Link |
|---|---|
| CN (1) | CN208325149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198531A (en) * | 2020-01-17 | 2020-05-26 | 刘睿妍 | Intelligent control system for power communication and working method thereof |
-
2018
- 2018-03-22 CN CN201820393869.0U patent/CN208325149U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198531A (en) * | 2020-01-17 | 2020-05-26 | 刘睿妍 | Intelligent control system for power communication and working method thereof |
| CN111198531B (en) * | 2020-01-17 | 2021-02-12 | 刘睿妍 | Intelligent control system for power communication and working method thereof |
| CN112859957A (en) * | 2020-01-17 | 2021-05-28 | 刘睿妍 | Intelligent control system for power communication and working method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |