CN216734192U - Car bluetooth control anti-theft device - Google Patents

Abstract

The anti-theft device of the utility model is controlled by bluetooth. The anti-theft detection module adopts a vibration sensor, a glass breaking sensor and a magnetic control switch sensor for anti-theft detection, and is encoded by a priority encoder and then transmitted to an electric control module. The electric control module communicates with the Bluetooth communication module. The terminal communicates instructions with each other, or the theft instruction judged according to the anti-theft detection signal, outputs the control signal, drives the voice alarm circuit to give a voice alarm, the engine electronic lock drive circuit The engine electronic lock action, according to the control signal of the single chip, the engine electronic lock drives the motor Positive voltage or negative voltage is applied to both ends of B1, the engine electronic lock action will be locked or not operated to unlock, or when the normally open button SB2 is pressed, the engine electronic lock will be locked, and the normally closed button SB1 will be pressed. When the car is locked, the engine electronic lock does not act to unlock, which is intelligent and convenient, so as to carry out anti-theft protection, safe and reliable, and can notify the owner in time when it is stolen.

Description

Car bluetooth control anti-theft device

technical field

The utility model relates to the technical field of automobiles, in particular to an automobile Bluetooth control anti-theft device.

Background technique

The traditional car anti-theft has gradually evolved from the mechanical steering wheel lock and gear lock that is opened by a key to an electronic remote anti-theft device. The problem is that although the electronic remote control anti-theft device is easy to lock and unlock, it is easy to be copied and recorded, and is susceptible to high-frequency interference, and both of them cannot communicate with the car owner, and the car owner cannot be notified in time when it is stolen. .

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a car Bluetooth control anti-theft device, which effectively solves the problem of the prior art that the car anti-theft cannot communicate with the car owner, and the car owner cannot be notified in time when it is stolen.

The technical solution it solves is that it includes an anti-theft detection module, an electronic control module, a bluetooth communication module, and an anti-theft execution module. After encoding, it is sent to the electronic control module. The electronic control module communicates with the communication terminal through the Bluetooth communication module, and drives the anti-theft execution module to perform voice alarm and engine electronic lock actions.

Preferably, the voice alarm circuit includes a voice chip U3, the pin 2 of the voice chip U3 is connected to the pin 2 of the single-chip microcomputer U2, the pin 3 of the voice chip U3 is connected to the pin 3 of the single-chip microcomputer U2, and the pin 4 of the voice chip U3 Connect the negative pole of the buzzer LS1, the pin 5 of the voice chip U3 is connected to the positive pole of the buzzer LS1, the pin 6 of the voice chip U3 and one end of the capacitor C4 are connected to the +5V power supply, the pin 6 of the voice chip U3 and the capacitor C4 The other end is connected to ground.

Preferably, the engine electronic lock drive circuit includes a photocoupler PC1, the pin 1 of the photocoupler PC1 is connected to the power supply +5V through the resistor R7, the pin 2 of the photocoupler PC1 is connected to the pin 1 of the single-chip microcomputer U2, and the photoelectric coupling The pin 3 of the PC1 is connected to one end of the resistor R9 and one end of the resistor R11 respectively, the other end of the resistor R9 is connected to the power supply -5V, and the other end of the resistor R11 is connected to one end of the normally open contact JK1-2 of the relay JK1, the engine electronic lock The upper end of the drive motor B1, the lower end of the engine electronic lock drive motor B1 is connected to the ground through the resistor R10, the pin 4 of the photocoupler PC1 is connected to the power supply +12V through the resistor R8, and the other end of the normally open contact JK1-2 of the relay JK1 is connected to the power supply +12V, one end of the relay JK1 coil is connected to the ground, the other end of the relay JK1 coil is connected to one end of the relay JK1 normally open contact JK1-1, one end of the normally open button SB2, and the other end of the relay JK1 normally open contact JK1-1 . The other end of the normally open button SB2 is connected to one end of the normally closed button SB1, and the other end of the normally closed button SB1 is connected to the power supply +5V.

The utility model has the advantages of simple structure and reliable action. The anti-theft detection is carried out by using a vibration sensor, a glass breaking sensor and a magnetic control switch sensor, and is encoded by a priority encoder and then transmitted to an electric control module. The electric control module communicates with the communication terminal through the bluetooth communication module. The command, or the theft command judged according to the vibration, glass breakage, window switch signal received by the electronic control module, output the control signal, drive the voice alarm circuit voice alarm, the engine electronic lock drive circuit engine electronic lock action, in order to prevent anti-theft It is safe and reliable, and can notify the owner in time when it is stolen.

Description of drawings

FIG. 1 is a schematic diagram of the anti-theft detection module of the present invention.

FIG. 2 is a schematic diagram of the electric control module of the present invention.

FIG. 3 is a schematic diagram of the Bluetooth communication module of the present invention.

FIG. 4 is a schematic diagram of the voice alarm circuit of the present invention.

FIG. 5 is a schematic diagram of the driving circuit of the engine electronic lock of the present invention.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to FIGS. 1 to 5 . The structural contents mentioned in the following embodiments are all taken as reference to the accompanying drawings.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Automobile Bluetooth control anti-theft device, including anti-theft detection module, electronic control module, Bluetooth communication module, anti-theft execution module, the anti-theft detection module adopts vibration sensor, glass breaking sensor, magnetic switch sensor for anti-theft detection, and encoded by priority encoder After that, it is transmitted to the electronic control module. The electronic control module communicates with the communication terminal through the Bluetooth communication module. When it is stolen, it can notify the car owner in time, and drive the anti-theft execution module to perform voice alarm and engine electronic lock action to prevent theft.

On the basis of the above scheme, the anti-theft detection module adopts the vibration sensor J1 installed on the body for real-time detection. For example, the SW-18020P vibration sensor can be used, which uses the comparator output, the signal is clean, the waveform is good, and the driving ability is strong. More than 15mA, working voltage 3.3V-5V, digital switch output (0 and 1), when someone smashes the car and the car vibrates, the output low level is added to the pin 1 of the priority encoder U1, the glass breakage sensor J2 detects the car window in real time The frequency signal when broken (for example, the window piezoelectric glass breaking sensor can be used for detection) is added to the pin 2 of the priority encoder U1, and the magnetic control switch sensor K1 is used to detect the state of the car door in real time, and added to the priority encoder U1. Pin 3 is used for anti-theft detection, and when all three signals arrive through the priority encoder U1, it is encoded according to the importance order of vibration, glass breakage, and window switch, and then transmitted to the electronic control module. The electronic control module passes the Bluetooth communication module. It communicates with the communication terminal, and can notify the car owner in time when it is stolen, including the vibration sensor J1, the glass breakage sensor J2, the magnetic switch sensor K1, the pin 1 of the vibration sensor J1 is connected to the power supply +5V, and the pin 3 of the vibration sensor J1 is connected Ground, the pin 2 of the shock sensor J1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the grounding capacitor C1, the pin 1 of the priority encoder U1, the pin 3 of the glass breakage sensor J2 is connected to the power supply +5V, The pin 1 of the glass breakage sensor J2 is connected to the ground, the pin 2 of the glass breakage sensor J2 is connected to one end of the resistor R1, and the other end of the resistor R1 is respectively connected to one end of the grounding resistor R2, the non-inverting input of the operational amplifier OP1, and the The inverting input terminal and output terminal are connected to the pin 2 of the priority encoder U1, the VCC terminal of the operational amplifier OP1 is connected to the power supply +5V, the GND terminal of the operational amplifier OP1 is connected to the ground, the lower end of the magnetic control switch sensor K1 is connected to the ground, the magnetic control switch The upper end of the sensor K1 is connected to one end of the resistor R4, the other end of the resistor R4 is connected to one end of the resistor R3 and the pin 3 of the priority encoder U1, the other end of the resistor R3 is connected to the power supply +5V, and the pin 16 of the priority encoder U1 is connected The power supply is +5V, the pin 8 of the priority encoder U1 is connected to the ground, the pin 9 of the priority encoder U1 is connected to the pin 5 of the microcontroller U2, the pin 7 of the priority encoder U1 is connected to the pin 7 of the microcontroller U2, and the priority encoder Pin 6 of U1 is connected to pin 8 of U2 of the microcontroller.

On the basis of the above scheme, the anti-theft execution module communicates with a communication terminal, such as a mobile phone, through a Bluetooth communication module (Fig. 3 shows the CSR BCZ Bluetooth communication interface U4, and the Bluetooth communication interface U4 is connected to the Bluetooth chip BC417143 according to the electronic control module. The chip adopts Blue2.0, supports master or slave mode, supports AT command set, supports baud rate from 2 400 to 1 382 400 bps, and is suitable for embedded serial transmission wireless new module) and communication terminals to communicate with each other. , or according to the vibration, glass breakage, window switch signal received by the electronic control module (including the STC15F2K60S2 single-chip microcomputer and the crystal oscillator circuit) to determine the theft command, if any abnormality is judged, the control signal is output to drive the voice alarm circuit. Alarm, engine electronic lock drive circuit Engine electronic lock action (circuit that can supply oil or ignition to lock the engine), including voice alarm circuit, engine electronic lock drive circuit.

On the basis of the above scheme, when the voice alarm circuit outputs control signals at pins 2 and 3 of the single-chip microcomputer, the voice chip U3 of the model NVC080 works, and the buzzer LS1 sounds for voice alarm, including the voice chip U3, The pin 2 of the voice chip U3 is connected to the pin 2 of the MCU U2, the pin 3 of the voice chip U3 is connected to the pin 3 of the MCU U2, the pin 4 of the voice chip U3 is connected to the negative electrode of the buzzer LS1, and the lead of the voice chip U3 is connected. The pin 5 is connected to the positive pole of the buzzer LS1, the pin 6 of the voice chip U3 and one end of the capacitor C4 are connected to the power supply +5V, and the pin 6 of the voice chip U3 and the other end of the capacitor C4 are connected to the ground.

On the basis of the above scheme, according to the control signal output by pin 1 of the single-chip microcomputer, the motor electronic lock drive circuit turns on or off the photocoupler PC1, and the two ends of the motor electronic lock drive motor B1 apply a positive voltage or a negative voltage. To the voltage, the engine electronic lock acts to lock or does not act to unlock, or when the normally open button SB2 is pressed, the relay JK1 coil is energized, the normally open contact is closed, the normally closed contact is disconnected, and the self-locking switch JK1 is at the same time. -1 is closed, the engine electronic lock acts to lock, when the normally closed button SB1 is pressed, the relay JK1 coil is de-energized, and the engine electronic lock does not act to unlock. The two methods are combined to lock or unlock anti-theft, which is more intelligent and convenient, including Optocoupler PC1, the pin 1 of the optocoupler PC1 is connected to the power supply +5V through the resistor R7, the pin 2 of the optocoupler PC1 is connected to the pin 1 of the microcontroller U2, and the pin 3 of the optocoupler PC1 is connected to the resistor R9. One end, one end of the resistor R11, the other end of the resistor R9, one end of the normally closed contact JK1-3 of the relay JK1 are connected to the power supply -5V, and the other end of the resistor R11 is respectively connected to one end of the normally open contact JK1-2 of the relay JK1, and one end of the relay JK1 The other end of the normally closed contact JK1-3, the upper end of the engine electronic lock drive motor B1, the lower end of the engine electronic lock drive motor B1 is connected to the ground through the resistor R10, the pin 4 of the photocoupler PC1 is connected to the power +12V through the resistor R8, The other end of the relay JK1 normally open contact JK1-2 is connected to the power supply +12V, one end of the relay JK1 coil is connected to the ground, and the other end of the relay JK1 coil is respectively connected to one end of the relay JK1 normally open contact JK1-1, and the normally open button SB2. One end, the other end of the normally open contact JK1-1 of the relay JK1, the other end of the normally open button SB2 is connected to one end of the normally closed button SB1, and the other end of the normally closed button SB1 is connected to the power supply +5V.

The above is a further detailed description of the present invention in conjunction with the specific embodiments, and it cannot be considered that the specific implementation of the present invention is limited to this; Under the premise of the idea of the scheme, the expansion, the replacement of the operation method and the data should all fall within the protection scope of the present invention.

Claims (5)

1. The automobile Bluetooth control anti-theft device comprises an anti-theft detection module, an electric control module, a Bluetooth communication module and an anti-theft execution module, and is characterized in that the anti-theft detection module adopts a vibration sensor, a glass crushing sensor and a magnetic control switch sensor to carry out anti-theft detection and transmits the anti-theft detection to the electric control module after being coded by a priority coder, and the electric control module communicates with a communication terminal through the Bluetooth communication module and drives the anti-theft execution module to carry out voice alarm and engine electronic lock action.

2. The automotive Bluetooth-controlled anti-theft device according to claim 1, characterized in that the anti-theft detection module comprises a shock sensor J1, a glass breaking sensor J2 and a magnetic control switch sensor K1, wherein a pin 1 of the shock sensor J1 is connected with +5V of a power supply, a pin 3 of the shock sensor J1 is connected with ground, a pin 2 of the shock sensor J1 is connected with one end of an inductor L1, the other end of the inductor L1 is respectively connected with one end of a grounding capacitor C1 and a pin 1 of a priority encoder U1, a pin 3 of the glass breaking sensor J2 is connected with +5V of the power supply, a pin 1 of the glass breaking sensor J2 is connected with ground, a pin 2 of the glass breaking sensor J2 is connected with one end of a resistor R1, the other end of the resistor R1 is respectively connected with one end of a grounding resistor R2 and a non-inverting input end of an operational amplifier OP1, an inverting input end and an inverting input end of the operational amplifier OP1 are connected with a pin 2 of the priority encoder U1, the VCC end of the operational amplifier OP1 is connected with +5V of a power supply, the GND end of the operational amplifier OP1 is connected with ground, the lower end of the magnetic control switch sensor K1 is connected with ground, the upper end of the magnetic control switch sensor K1 is connected with one end of a resistor R4, the other end of the resistor R4 is respectively connected with one end of the resistor R3 and a pin 3 of a priority encoder U1, the other end of the resistor R3 is connected with the power supply +5V, a pin 16 of the priority encoder U1 is connected with the power supply +5V, a pin 8 of the priority encoder U1 is connected with ground, a pin 9 of the priority encoder U1 is connected with a pin 5 of a singlechip U2, a pin 7 of the priority encoder U1 is connected with a pin 7 of a singlechip U2, and a pin 6 of the priority encoder U1 is connected with a pin 8 of the singlechip U2.

3. The automobile Bluetooth control anti-theft device according to claim 1, wherein the anti-theft execution module comprises a voice alarm circuit and an engine electronic lock driving circuit.

4. The automobile Bluetooth control anti-theft device according to claim 3, wherein the voice alarm circuit comprises a voice chip U3, pin 2 of the voice chip U3 is connected with pin 2 of the single chip microcomputer U2, pin 3 of the voice chip U3 is connected with pin 3 of the single chip microcomputer U2, pin 4 of the voice chip U3 is connected with the negative electrode of the buzzer LS1, pin 5 of the voice chip U3 is connected with the positive electrode of the buzzer LS1, pin 6 of the voice chip U3 and one end of the capacitor C4 are connected with +5V, and pin 6 of the voice chip U3 and the other end of the capacitor C4 are connected with ground.

5. The bluetooth-controlled anti-theft device according to claim 3, characterized in that the engine electronic lock driving circuit comprises a photocoupler PC1, pin 1 of photocoupler PC1 is connected with +5V of power supply through resistor R7, pin 2 of photocoupler PC1 is connected with pin 1 of singlechip U2, pin 3 of photocoupler PC1 is connected with one end of resistor R9 and one end of resistor R11 respectively, the other end of resistor R9 and one end of normally-closed contact JK1-3 of relay JK1 are connected with-5V of power supply, the other end of resistor R11 is connected with one end of normally-open contact JK1 JK1-2, the other end of normally-closed contact JK1-3 of relay JK1 and the upper end of engine electronic lock driving motor B1 respectively, the lower end of engine electronic lock driving motor B1 is connected with ground through resistor R10, pin 4 of photocoupler 1 is connected with +12V of power supply through resistor PC R8, the other end of normally open contact JK1-2 of relay JK1 is connected with power supply +12V, the one end of relay JK1 coil is connected with ground, the other end of relay JK1 coil is connected with the one end of normally open contact JK1-1 of relay JK1, the one end of normally open button SB2 respectively, the other end of relay JK1 normally open contact JK1-1, the one end of normally closed button SB1 is connected to the other end of normally open button SB2, the other end of normally closed button SB1 is connected with power supply + 5V.

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