CN211061702U

CN211061702U - Electric motor car GPS signal interference detection alarm system

Info

Publication number: CN211061702U
Application number: CN201920612602.0U
Authority: CN
Inventors: 刘峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-07-21
Anticipated expiration: 2029-04-29

Abstract

The utility model provides an electric motor car GPS signal interference detection alarm system, this system includes: the device comprises a power supply module, an interference detection module, a vibration sensor module and an alarm module; the power supply module is electrically connected with the interference detection module, the vibration sensor module and the alarm module; the output end of the vibration sensor module is connected with the first input end of the alarm module; the output end of the interference detection module is connected with the second input end of the alarm module; the vibration sensor module is used for sensing the vibration of the electric vehicle, outputting an electric signal, amplifying the electric signal, comparing the amplified output amplitude with a preset first threshold value, and transmitting a level signal output by the comparison to the alarm circuit; the interference detection module is used for detecting the interference of the GPS signal and transmitting the output level to the alarm circuit; the alarm circuit is used for outputting an alarm signal; the system can sense whether the electric vehicle is running or not while detecting that the GPS of the electric vehicle is interfered, thereby determining whether the electric vehicle is stolen or not and achieving accurate alarm prompt.

Description

Electric motor car GPS signal interference detection alarm system

Technical Field

The utility model belongs to the technical field of the GPS electromagnetic interference detection and specifically relates to an electric motor car GPS signal interference detection alarm system.

Background

At present, the electric vehicle theft means presents a new and intelligent trend. And a theft can utilize the GPS interference device to interfere the vehicle-mounted GPS positioning device of the electric vehicle so as to realize the illegal purpose.

Most GPS receivers use Automatic Gain Control (AGC) circuitry to automatically adjust the input signal level, and if a radio frequency interfering signal is present near the GPS antenna and its transmit power is sufficiently strong, the AGC circuitry will be affected by the interfering signal, thereby rejecting the GPS signal.

The existing electric vehicle usually carries out anti-theft tracking by installing a GPS positioning device, however, after the GPS positioning device is interfered by radio frequency signals, the interference can not be detected and alarm information can not be obtained under most conditions, meanwhile, because the GPS is very easily interfered by various electromagnetic signals in the space, a transmission source of the interference signal is probably not an interference device used by illegal thieves, and when the interference signal automatically disappears after a period of time, under the condition, the theft can not be accurately judged only by means of detecting the GPS interference.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide an electric motor car GPS signal interference detection alarm system.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a technical scheme 1: an electric vehicle GPS signal interference detection alarm system, the system comprising:

the device comprises a power supply module, an interference detection module, a vibration sensor module and an alarm module; wherein,

the power supply module is electrically connected with the interference detection module, the vibration sensor module and the alarm module; the output end of the vibration sensor module is connected with the first input end of the alarm module; the output end of the interference detection module is connected with the second input end of the alarm module; the power supply module is a rechargeable battery;

the vibration sensor module is used for sensing vibration of the electric vehicle, outputting an electric signal, amplifying the electric signal, comparing the amplified output amplitude with a preset first threshold value, and transmitting a level signal output by the comparison to the alarm circuit; the interference detection module is used for detecting the interference of the GPS signal and transmitting an output level signal to the alarm circuit; the alarm circuit is used for outputting an alarm signal.

Further, the interference detection module includes:

the device comprises a power detector module, a filter module, a variable gain amplifier module and a second comparator module; the output end of the variable gain amplifier module is connected with the input end of the filter module, the output end of the filter module is connected with the input end of the power detector module, the output end of the power detector module is connected with the gain control input end of the variable gain amplifier module, and the output end of the power detector module is also connected with the input end of the second comparator module;

the interference detection module is arranged for receiving and processing radio interference signals in the surrounding environment of the GPS, the output amplitude of the power detector module is a voltage signal which is proportional to the power of the radio interference signals, and the output result of the second comparator module is high level or low level;

the variable gain amplifier module comprises a variable gain amplifier chip AD8368, an antenna RFIN, a capacitor C, a resistor R and an inductor 1, wherein the antenna RFIN is used for receiving radio interference signals in the surrounding environment, a gain control input end pin 1 of the chip AD8368 is connected with an output end Vout of the power detector module, a pin 3 of the chip AD8368 is connected with a first end of the capacitor C, a second end of the capacitor C is grounded, a pin 4 of the chip AD8368 is connected with a first end of the capacitor C, a second end of the capacitor C is grounded, a pin 7 of the chip AD8368 is grounded, an output end pin 8 of the chip AD8368 is connected with a first end of the capacitor C of the filter module, a pin 9, a pin 10, a pin 11, a pin 12 and a pin 13 of the chip AD8368 are connected with the first end of the capacitor C and the first end of the capacitor C, the second end of the capacitor C is grounded, the second end of the capacitor C and the second end of the capacitor C is grounded, a pin 14 of the chip AD8368 is connected with a first end of the capacitor C, a pin 15, a pin V5, a pin 8368 of the capacitor C, a pin 8368, a pin V5, a pin R and a pin 18, a pin 17 of the pin of the capacitor C, a pin 18, a pin.

Further, the filter module comprises a filter chip B5070, a capacitor C10, an inductor L2 and an inductor L3, wherein a pin 1, a pin 2, a pin 3, a pin 5, a pin 6, a pin 7, a pin 8, a pin 9, a pin 11 and a pin 12 of the chip B5070 are respectively grounded, a pin 4 of the chip B5070 is connected with a first end of the inductor L4 and a first end of the inductor L5 of the power detector module, the first ends of the inductor L4 and the inductor L5 of the power detector module are input ends of the power detector module, a pin 10 of the chip B5070 is connected with a first end of the inductor L2 and a first end of the inductor L3, a second end of the inductor L2 is grounded, and a second end of the inductor L3 is connected with a second end of the capacitor C10.

The power detector module further comprises a power detector chip AD 5902, a resistor R, a capacitor C, an inductor 4 and an inductor 05, wherein a pin 1 of the chip AD 15902 is connected with a first end of the resistor R and a first end of the resistor R, a second end of the resistor R is grounded, a second end of the resistor R is connected with a first end of the resistor R and a first end of the resistor R, a second end of the resistor R is connected with a first end of the resistor R and a pin 11 of the chip AD 25902, a second end of the resistor R is connected with a first end of the resistor R and a pin 12 of the chip, a second end of the resistor R is grounded, a pin 3 of the chip AD is connected with a first end of the capacitor C, a first end of the capacitor C and a 5V voltage input end, a second end of the capacitor C and a second end of the capacitor C is connected with a second end of the resistor R599, a second end of the resistor R5902 is connected with a second end of the resistor R599, a second end of the resistor R594 is connected with a second end of the capacitor R594, a second end of the capacitor R599, a second end of the resistor R599 is connected with a second end of the resistor R, a second end of the capacitor R599, a second end of the resistor R, a resistor R5902, a second end of the capacitor R599 is connected with a second end of the resistor R, a resistor R599, a.

Furthermore, the second comparator module comprises a comparator chip L M258, a resistor R15, a resistor R16 and a capacitor C18, a pin 3 of the chip L M258 is connected with an output end Vout of the power detector module, a pin 2 of the chip L M258 is connected with a first end of a resistor R15 and a first end of a resistor R16, a second end of the resistor R15 is grounded, a second end of the resistor R16 is connected with a 5V voltage input end, a pin 4 of the chip L M258 is grounded, a pin 8 of the chip L M258 is connected with a first end of the capacitor C18 and a 5V voltage input end, a second end of the capacitor C18 is grounded, and a pin 1 of the chip L M258 is connected with a second input end of the alarm module.

The vibration sensor module comprises a vibration sensor RB-02S082A, an operational amplifier chip AD648, a resistor R9, a resistor R10, a resistor R11, a comparator chip L M258, a resistor R12 and a resistor R13, wherein the negative electrode of the vibration sensor RB-02S082A is grounded, the positive electrode of the vibration sensor RB-02S082A is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the pin 3 of the chip AD648, the first end of the resistor R9 is connected with the first end of a potentiometer R10 and the pin 3 of the chip AD648, the second end and the third end of the potentiometer are respectively connected with the pin 1 of the chip AD648, the pin 4 of the chip AD648 is grounded, the pin 8 of the chip AD648 is connected with a 5V voltage input end, the pin 1 of the chip AD648 is connected with the pin 5 of the chip L M258, the pin 6 of the chip L M258 is connected with the first end of the resistor R12, the second end of the resistor R35 13, the second end of the resistor R357377 is connected with the voltage input end of the alarm module 13, and the pin 13 is connected with the voltage input end of the chip AD 648.

The alarm module comprises a two-input AND gate chip 74L VC1G08, a T L P521-1 photoelectric coupler, a resistor R17, a resistor R18, a capacitor 19, a capacitor 20, a voice chip HFC5219, a loudspeaker B, a triode S8050 and a zener diode 1N4619, wherein a pin 1 of the chip 74L VC1G08 is a first input end of the alarm module, a pin 2 of the chip 74L VC1G08 is a second input end of the alarm module, a pin 3 of an output end of the chip 74L VC1G08 is connected with a pin 1 of a T L P521-1 photoelectric coupler, a pin 2 of the T L P521-1 photoelectric coupler is grounded, a pin 4 of the T L P521-1 photoelectric coupler is connected with a voltage input end of 5V, a pin 3 of the T L P521-1 photoelectric coupler is connected with a first end of a resistor R17, a first end of a resistor R5, a positive electrode of the loudspeaker B and a positive electrode of the HFC 20, a negative electrode of the HFC 5224 of the voice chip, a pin of the HFC 4619 is connected with a negative electrode of the voice diode S18, a negative electrode of the HFC 5919, a negative electrode of the voice chip of the HFC 5919, a resistor R8019, a pin of the voice chip is connected with a negative electrode of the HFC 5919, a triode S5919, a negative electrode of the HFC 5919 of the voice chip of the HFC 5919, a triode S8019, a triode T5919 of the voice chip of the HFC 19, a voice chip is connected with;

in addition, the pin 3 of the output end of the chip 74L VC1G08 is further connected with a wireless transmission module, the wireless transmission module is wirelessly connected with an intelligent terminal arranged in a mobile device, and the wireless transmission module is used for sending theft alarm information to the intelligent terminal according to a high-level signal appearing at the pin 3 of the output end of the chip 74L VC1G 08.

The utility model discloses still provide technical scheme 2, scheme 2 compares with scheme 1, except other modular structure and relation of connection homogeneous phase outside the interference detection module, this electric motor car GPS signal interference detection alarm system in scheme 2 the interference detection module still includes:

GPS positioning unit, GSM base station positioning unit, control unit; the control unit is electrically connected with the GPS positioning unit and the GSM base station positioning unit respectively; the control unit comprises a microcontroller, the GPS positioning unit acquires an address coordinate of GPS positioning and sends the address coordinate to the control unit microcontroller, the GSM base station positioning unit acquires an address coordinate of base station positioning and sends the address coordinate to the control unit microcontroller, the control unit microcontroller receives the GPS coordinate and the base station coordinate and compares a distance difference value between the GPS coordinate and the base station coordinate with a set threshold value, and a comparison result is transmitted to a second input end of the alarm module in a high-level or low-level mode.

The utility model has the advantages that:

the utility model provides an electric motor car GPS signal interference detection alarm system makes interference detection module and vibrations sensor module combine together, detects interference signal and detects the electric motor car and surpasss the predetermined threshold value because of the voltage amplitude that vibrations produced through interference detection module to confirm this electric motor car GPS by the illegal interference of thief, and the electric motor car is in the middle of the removal, thereby reaches accurate warning suggestion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the system structure of embodiment 1 of the present invention

Fig. 2 is a schematic diagram of a system circuit according to embodiment 1 of the present invention

Fig. 3 is a schematic diagram of a system circuit according to embodiment 2 of the present invention

In the figure: 1. the device comprises a power supply module, a signal detection module, a power detector module, a filter module, a variable gain amplifier module, a GPS positioning unit, a GSM base station control unit, a GSM base station positioning unit, a GSM base

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.

Example 1

As shown in fig. 1, the system for detecting and warning GPS signal interference of an electric vehicle according to embodiment 1 includes:

the vibration sensor module is used for sensing vibration of the electric vehicle, outputting an electric signal, amplifying the electric signal, and judging whether the output amplitude of the vibration sensor module is greater than a preset first threshold value or not through a first comparator; the alarm circuit is used for outputting an alarm signal.

As shown in fig. 2, the interference detection module includes:

The filter module comprises a filter chip B5070, a capacitor C10, an inductor L2 and an inductor L3, wherein a pin 1, a pin 2, a pin 3, a pin 5, a pin 6, a pin 7, a pin 8, a pin 9, a pin 11 and a pin 12 of the chip B5070 are respectively grounded, a pin 4 of the chip B5070 is connected with a first end of the inductor L4 and a first end of the inductor L5 of the power detector module, the first ends of the inductor L4 and the inductor L5 of the power detector module are input ends of the power detector module, a pin 10 of the chip B5070 is connected with the first end of the inductor L2 and the first end of the inductor L3, the second end of the inductor L2 is grounded, and the second end of the inductor L3 is connected with the second end of the capacitor C10.

The power detector module comprises a power detector chip AD 5902, a resistor R, a capacitor C, an inductor 4 and an inductor 05, wherein a pin 1 of the chip AD 15902 is connected with a first end of the resistor R and a first end of the resistor R, a second end of the resistor R is grounded, a second end of the resistor R is connected with a first end of the resistor R and a pin 11 of the chip AD 25902, a second end of the resistor R is connected with a first end of the resistor R and a pin 12 of the chip AD, a second end of the resistor R is grounded, a pin 3 of the chip AD is connected with a first end of the capacitor C, a first end of the capacitor C and a 5V voltage input end, a second end of the capacitor C and a second end of the capacitor C are grounded, a pin 4 of the chip AD is grounded, a pin 5 of the chip AD 65902 is connected with a first end of the capacitor C, a second end of the capacitor C is grounded, a second end of the resistor R is connected with a second end of the resistor R599, a second end of the resistor R594 is connected with a second end of the resistor R, a pin 599, a pin of the capacitor C is connected with a second end of the resistor R599, a second end of the resistor R, a second end of the capacitor C is connected with a resistor R, a pin 599 of the capacitor C, a pin 599 is connected with a resistor R, a pin of the capacitor C, a resistor.

The second comparator module comprises a comparator chip L M258, a resistor R15, a resistor R16 and a capacitor C18, wherein a pin 3 of the chip L M258 is connected with an output end Vout of the power detector module, a pin 2 of the chip L M258 is connected with a first end of a resistor R15 and a first end of a resistor R16, a second end of the resistor R15 is grounded, a second end of the resistor R16 is connected with a 5V voltage input end, a pin 4 of the chip L M258 is grounded, a pin 8 of the chip L M258 is connected with a first end of the capacitor C18 and a 5V voltage input end, a second end of the capacitor C18 is grounded, and a pin 1 of the chip L M258 is connected with a second input end of the alarm module;

it should be noted that the detection range of the AD L5902 detector is 65dB, the detection range can be extended to 95dB by adding an AD8368 variable gain amplifier, and a filter chip B5070 is added to reduce noise and increase detection sensitivity, because the output terminal Vout of the power detector module is directly connected to the gain control input terminal of the AD8368, the variable gain is adjusted to be increased or decreased until the output levels of the power detector module and the variable gain amplifier module are equal, the voltage of the pin 3 of the chip L M258 is the voltage of the output terminal Vout of the power detector module, the voltage of the pin 2 of the comparator chip L M258 is a preset second threshold value, the preset second threshold value can be set after statistical analysis according to the strength of interference signals emitted by a common GPS jammer in the market, the preset second threshold value is the magnitude of the series connection of a resistor R15 and a resistor R16, the voltage of the pin 3 of the comparator chip L M258 is the voltage of the output terminal of the signal detection unit, when the input voltage of the pin L M258 pin 3 is greater than the input voltage of the pin 2, that the amplitude of the signal detection unit is greater than the preset second threshold value of the output terminal of the second threshold of the signal detection module L, and the alarm signal output terminal.

The vibration sensor module comprises a vibration sensor RB-02S082A, an operational amplifier chip AD648, a resistor R9, a resistor R10, a resistor R11, a comparator chip L M258, a resistor R12 and a resistor R13, wherein the cathode of the vibration sensor RB-02S082A is grounded, the anode of the vibration sensor RB-02S082A is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the pin 3 of the chip AD648, the first end of the resistor R9 is connected with the first end of a potentiometer R10 and the pin 3 of the chip AD648, the second end and the third end of the potentiometer are respectively connected with the pin 1 of the chip AD648, the pin 4 of the chip AD648 is grounded, the pin 8 of the chip AD648 is connected with a voltage input end, the pin 1 of the chip AD648 is connected with the pin 5 of the chip L M258, the pin 6 of the chip L M258 is connected with the first end of the resistor R12, the first end of the resistor R35 12 is connected with the voltage input end of the chip 13, and the second end of the alarm module is connected with the voltage input end of the pin 13.

It should be noted that, the electrical signal output by the vibration sensor RB-02S082A is amplified in phase by the chip AD648, the amplification factor is 1+ R10/R9, the amplification factor can be changed by adjusting the resistance of the potentiometer R10, and a technician can determine the preset first threshold value meeting the alarm according to the amplitude of the electrical signal generated by measuring the vibration intensity of the electric vehicle under the actual condition, where the preset first threshold value is the voltage division of the resistor R12 and the resistor R13 in series, that is, the input voltage of the pin 6 of the comparator chip L M258, and when the amplified amplitude of the electrical signal is greater than the preset first threshold value, that is, the input voltage of the pin 5 of the comparator chip L M258 is greater than the input voltage of the pin 6, that is, that the amplitude of the electrical signal generated by the vibration of the electric vehicle is greater than the preset first threshold value, the pin 7 of the comparator chip L M.

The alarm module comprises a two-input AND gate chip 74L VC1G08, a T L P521-1 photoelectric coupler, a resistor R17, a resistor R18, a capacitor 19, a capacitor 20, a voice chip HFC5219, a speaker B, a triode S8050 and a zener diode 1N4619, wherein the model of the speaker B is UGYX40280801-1, a pin 1 of the chip 74L VC1G08 is a first input end of the alarm module, a pin 2 of the chip 74L VC1G08 is a second input end of the alarm module, a pin 3 of an output end of the chip 74L VC1G08 is connected with a pin T L P521-1P 17-1, a pin 2 of the T L P521-1 photoelectric coupler is grounded, a pin 4 of the T L P521-1 photoelectric coupler is connected with a voltage input end of 5V, a pin 3 of the T L P521-1 photoelectric coupler is connected with a first end of a resistor R17, a first end of a resistor R521-5P 521-1 photoelectric coupler pin, a positive terminal of the speaker B, a positive terminal of the HFC 5255C pin of the HFC5219, a negative electrode of the HFC voice chip of the voice chip, a negative electrode of the voice chip of the HFC 4619 is connected with a negative electrode of the voice diode, a negative electrode of the voice diode of the HFC 525919, a pin of the HFC 5919, a negative electrode of the voice diode of the HFC 5919, a voice diode of the HFC 5255C-1, a voice diode of the;

it should be noted that, only when the two input terminals of the chip 74L VC1G08 are both at high level, the output terminal is at high level, otherwise, low level is output, when the chip 74L VC1G08 outputs high level, the pin 1 of the T L P521-1 photocoupler is conducted with the pin 2, so that the pin 4 of the T L P521-1 photocoupler is conducted with the pin 3, the OUT pin of the voice chip 52hfc 19 outputs a pre-stored voice electrical signal, the electrical signal is power amplified by the triode S8050, and the speaker is pushed to give OUT a voice alarm prompt, even if the user is not near the site, the duty officer at the intersection or the supervisor at the parking place or even the ordinary people passing by can take relevant measures through the voice alarm sound, and meanwhile, when the source of the interference signal detected by the system is not the jammer adopted, the interference signal may automatically disappear after a period of time, as long as the vibration sensor does not generate the electrical signal or the intensity of the generated by the thief does not meet the preset threshold, the voice chip will not alarm, and complete the accurate alarm prompt of the behavior of the.

In addition, the system also comprises a wireless transmitting module connected with the output terminal pin 3 of the chip 74L VC1G08, the wireless transmitting module is wirelessly connected with an intelligent terminal arranged in the mobile equipment, and the wireless transmitting module is used for sending theft alarm information to the intelligent terminal according to a high-level signal appearing at the output terminal pin 3 of the chip 74L VC1G 08.

Example 2

As shown in fig. 3, compared with embodiment 1, this embodiment 2 is different from embodiment 1 in terms of an interference detection module, and other module structures and connection relations are the same, where the interference detection module 2 includes a GPS positioning unit 24, a GSM base station positioning unit 25, and a control unit 26; the control unit 26 is electrically connected with the GPS positioning unit 24 and the GSM base station positioning unit 25, respectively; the control unit 26 includes a microcontroller 261;

specifically, the microcontroller in this embodiment 2 uses a chip stm32f103c8t 6; the GPS positioning unit acquires an address coordinate of GPS positioning and sends the address coordinate to the control unit microcontroller, the GSM base station positioning unit acquires an address coordinate of base station positioning and sends the address coordinate to the control unit microcontroller, the control unit microcontroller receives the GPS coordinate and the base station coordinate and compares a distance difference value between the GPS coordinate and the base station coordinate with a set threshold value, and a comparison result is transmitted to a second input end of the alarm module in a mode that a PA1 pin of a stm32f103c8t6 of the microcontroller chip outputs a high level or a low level.

When the difference value between the GPS coordinate received by the control unit and the base station coordinate is larger than a set threshold value, that is, the GPS positioning signal of the electric vehicle is interfered, the pin PA1 of the microcontroller outputs a high level and transmits the high level to the second input end of the alarm module, otherwise, the pin PA1 of the microcontroller outputs a low level and transmits the low level to the second input end of the alarm module, the level processing process of the two input ends of the alarm module is the same as that of the embodiment 1, that is, only when the two input ends of the chip 74L VC1G08 are both high levels, the alarm module can give an alarm.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides an electric motor car GPS signal interference detection alarm system which characterized in that: the system comprises: the device comprises a power supply module, an interference detection module, a vibration sensor module and an alarm module; wherein,

2. The system of claim 1 for detecting and warning GPS signal interference of an electric vehicle, wherein:

the interference detection module includes:

3. The GPS signal interference detection alarm system of the electric vehicle as claimed in claim 2, wherein the filter module comprises a filter chip B5070, a capacitor C10, an inductor L2 and an inductor L3, pin 1, pin 2, pin 3, pin 5, pin 6, pin 7, pin 8, pin 9, pin 11 and pin 12 of the chip B5070 are respectively grounded, pin 4 of the chip B5070 is connected with a first end of an inductor L4 and an inductor L5 of the power detector module, first ends of the inductor L4 and the inductor L5 of the power detector module are input ends of the power detector module, pin 10 of the chip B5070 is connected with a first end of an inductor L2 and a first end of an inductor L3, a second end of the inductor L2 is grounded, and a second end of the inductor L3 is connected with a second end of a capacitor C10.

4. The GPS signal interference detection alarm system of the electric vehicle as claimed in claim 3, wherein the power detector module comprises a power detector chip AD 5902, a resistor R, a capacitor C, an inductor 05, a first end of the resistor R and a first end of the resistor R are connected to pin 1 of the chip AD 15902, a second end of the resistor R is grounded, a first end of the resistor R and a second end of the resistor R are connected to pin 12 of the chip AD, a second end of the resistor R is grounded, pin 3 of the chip is connected to a first end of the capacitor C, a first end of the capacitor C and a voltage input end of 5V, a second end of the capacitor C and a second end of the capacitor C are connected to ground, pin AD 4 of the chip AD 655 is connected to pin 902 of the capacitor C, a second end of the capacitor C and a second end of the resistor R594, a second end of the resistor R594 is connected to ground, a second end of the resistor R594 is connected to pin 594, a second end of the resistor R594 is connected to ground, a second end of the resistor R594 is connected to pin 3 of the capacitor C, a second end of the capacitor R594 is connected to pin 594, a second end of the capacitor R594 is connected to a resistor R, a resistor R is connected to a second end.

5. The GPS signal interference detection alarm system for the electric vehicle as claimed in claim 4, wherein the second comparator module comprises a comparator chip L M258, a resistor R15, a resistor R16 and a capacitor C18, a pin 3 of the chip L M258 is connected with an output end Vout of the power detector module, a pin 2 of the chip L M258 is connected with a first end of a resistor R15 and a first end of a resistor R16, a second end of the resistor R15 is grounded, a second end of the resistor R16 is connected with a 5V voltage input end, a pin 4 of the chip L M258 is grounded, a pin 8 of the chip L M258 is connected with a first end of the capacitor C18 and a 5V voltage input end, a second end of the capacitor C18 is grounded, and a pin 1 of the chip L M258 is connected with a second input end of the alarm module.

6. The GPS signal interference detection alarm system of the electric vehicle as claimed in claim 1, wherein the vibration sensor module comprises a vibration sensor RB-02S082A, an operational amplifier chip AD648, a resistor R9, a resistor R10, a resistor R11, a comparator chip L M258, a resistor R12 and a resistor R13, the cathode of the vibration sensor RB-02S082A is grounded, the anode of the vibration sensor RB-02S082A is connected with the first end of the resistor R11, the second end of the resistor R11 is connected with the pin 3 of the chip AD648, the first end of the resistor R9 is connected with the first end of a potentiometer R10 and the pin 3 of the chip AD648, the second end and the third end of the potentiometer are respectively connected with the pin 1 of the chip AD648, the pin 4 of the chip AD648 is grounded, the pin 8 of the chip AD648 is connected with a 5V voltage input terminal, the pin 1 of the chip AD648 is connected with the pin 5 of the chip M L M258, the pin 6 of the chip AD648 is connected with the second end of the pin 356, the first end of the resistor R3527 is connected with the pin 3 of the pin 13, and the first end of the resistor R7377 is connected with the voltage input terminal of the chip AD 648.

7. The system of claim 1 for detecting and warning GPS signal interference of an electric vehicle, wherein:

the interference detection module further comprises:

8. The GPS signal interference detection alarm system of the electric vehicle as claimed in claim 1, wherein the alarm module comprises a two-input AND gate chip 74L VC1G08, a T L P521-1 photocoupler, a resistor R17, a resistor R18, a capacitor 19, a capacitor 20, a voice chip HFC5219, a speaker B, a triode S8050 and a zener diode 1N4619, a pin 1 of the chip 74 VC 92 VC1G 8 is a first input end of the alarm module, a pin 2 of the chip 74L VC1G08 is a second input end of the alarm module, an output terminal pin 3 of the chip 74L VC1G 6329 is connected with a T L P521-1 photocoupler pin 1, a pin 2 of the T L P521-1 photocoupler pin 2 is grounded, a pin 4 of the T L P521-1 photocoupler is connected with a 5V voltage input end, a pin 3 of the T L P521-1 photocoupler pin is connected with a first end of a resistor R17, a first end VSS of a resistor R5, a first end of a resistor R521-1, a positive terminal of a resistor B, a positive terminal of a loudspeaker B-1P 521-1, a positive terminal of the HFC voice coupler pin 4, a negative pole of the HFC 4619, a negative pole of the HFC 19 and a negative pole of the HFC 5919 of the HFC 19 are connected with a negative pole of the HFC 5919, a negative pole of the HFC 5919 of the HFC 19, a triode T5919 of the HFC 19 and a negative pole of the HFC 5919 of the HFC 19 is connected with a voice diode 5235, a voice diode 52C resistor, a voice diode 5235, a negative pole of the HFC 59;