Remote anti-theft control system for vehicle-mounted liquid crystal display (LCD) screen

Abstract

The utility model relates to the technical field of remote anti-theft of vehicles, and discloses a remote anti-theft control system for a vehicle-mounted LCD (liquid crystal display), which can comprehensively monitor the state of a vehicle through the design of a sensor module, a vibration sensor and an acoustic sensor, can sensitively sense various abnormal conditions possibly occurring in the parking or driving process of the vehicle, and can realize the remote anti-theft of the vehicle. Physical signals such as illegal prying, collision, abnormal opening of a vehicle door, glass smashing and the like can be detected, and the physical signals are converted into electric signals; through the design of the communication module, after the microcontroller module judges that the vehicle is abnormal, the communication module quickly plays a role. By means of the GSM / GPRS module, the Bluetooth module or the Wi-Fi module, the abnormal state information of the vehicle is sent to the remote terminal pre-bound by the vehicle owner in the form of short messages, network data and the like, it is guaranteed that the vehicle owner receives the alarm information of the vehicle at the first time, remote real-time monitoring is achieved, and the control ability and the response speed of the vehicle owner to the safety condition of the vehicle are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle remote theftproof technical field, concretely is a kind of vehicle-mounted LCD liquid crystal display screen remote theftproof control system. BACKGROUND

[0002] Vehicle remote theftproof mainly relies on modern science and technology means, realizes remote monitoring, positioning and control to vehicle by integrating GSM network digital mobile communication technology and GPS satellite positioning technology. Through vehicle-mounted camera and sensor and other equipment, the environment around vehicle is monitored for 24 hours uninterruptedly, ensures vehicle safety. When vehicle is illegally intruded, system will automatically lock vehicle, prevents vehicle from being moved, when vehicle appears abnormal condition, such as illegal intrusion, attempt to start etc., system will automatically trigger alarm device, and sends alarm information to owner's mobile phone or internet platform by GSM network. Owner can remotely view vehicle state, receive abnormal alarm by mobile phone APP, and can remotely control vehicle, such as remote fuel cut-off, remote power-off, remote start etc.

[0003] Through the retrieval, the patent with the application No. CN201720164437.8 discloses a kind of remote control vehicle-mounted theftproof alarm device, the top of the shell is equipped with top cover by screw, the first spring sleeve is connected to the outer side of guide column, the top of the support plate is equipped with first mounting bracket, the first mounting bracket is hinged with first shock absorber, the top of the first shock absorber is hinged with second mounting bracket, the second mounting bracket is installed in the bottom of mounting plate, the left and right sides of the mounting plate are equipped with fourth mounting bracket, the fourth mounting bracket is hinged with second shock absorber, the left and right sides of the inside of shell are equipped with third mounting bracket, the outer side of the second shock absorber is hinged with third mounting bracket;The device is equipped with first spring, first shock absorber and second shock absorber, so that the alarm device can protect alarm equipment from being damaged when the vehicle body vibrates, improve the service life of alarm device.

[0004] The above scheme is not convenient for comprehensive monitoring the state of vehicle, reduces the anti-theft performance of vehicle, and when abnormal condition occurs in vehicle, cannot quickly and timely send abnormal information to owner, reduces the control ability and response speed of owner to vehicle safety condition, therefore we need to put forward a kind of vehicle-mounted LCD liquid crystal display screen remote theftproof control system. UTILITY MODEL CONTENTS

[0005] The utility model discloses a vehicle-mounted LCD liquid crystal display screen remote theftproof control system, through the design of sensor module, vibration sensor and acoustic sensor can monitor the state of vehicle comprehensively, can acutely perceive various abnormal conditions that may appear in the parking or driving process of vehicle, such as illegal prying, collision, vehicle door abnormal opening, glass is smashed etc.

[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a vehicle-mounted LCD liquid crystal display screen remote theftproof control system, including:

[0007] Sensor module responsible for detecting vehicle state change and providing trigger signal;

[0008] Communication module for building information bridge between vehicle and owner remote terminal and transmitting theftproof information in time;

[0009] Execution module for executing theftproof protection action and preventing vehicle theft;

[0010] LCD display module for showing remote theftproof control system working state and vehicle information;

[0011] Microcontroller module for overall planning and coordination the work of above-mentioned multiple modules and processing the signal sent by sensor module, making corresponding decision;

[0012] Power module for providing stable power supply for remote theftproof control system and electrically connected with sensor module, communication module, execution module, LCD display module and microcontroller module;

[0013] Sensor module, communication module, execution module and LCD display module are electrically connected with microcontroller module.

[0014] Preferably, the sensor module includes:

[0015] Vibration sensor that can acutely perceive mechanical vibration signal and convert into electric signal;

[0016] Acoustic sensor that can capture the frequency when vehicle glass is broken.

[0017] Preferably, the shock sensor comprises a chip U1, a connector P1, the 3-pin of the chip U1 is connected with a capacitor C2, an inclination switch K1 and a resistor R1 for supplying power respectively, the 4-pin of the connector P1 is connected with a light emitting diode D1 and a resistor R3 in series, a light emitting diode D2 and a resistor R4 in series, and a resistor R5 and an adjustable resistor R2 respectively, one end of the resistor R3 is connected to the 3-pin of the connector P1, the resistor R4 and the resistor R5 are both connected to the 2-pin of the connector P1, and the adjustable resistor R2 is connected to the 2-pin of the chip U1.

[0018] Preferably, the acoustic sensor comprises a connector J1 and a connector P2 connected electrically, an amplifier U1A and an amplifier U1B connected electrically, the amplifier U1A and the amplifier U1B are both connected to the connector J1.

[0019] The resistor R52 and a diode D102 are connected in series between the 1-pin of the amplifier U1A and the 5-pin of the amplifier U1B, the 2-pin of the amplifier U1A is connected with a resistor R42, a capacitor C22 and a microphone MK1 in sequence, the resistor R22 is connected between the 1-pin and the 2-pin of the amplifier U1A, the capacitor C42 and the resistor R122 are connected in parallel to the 5-pin of the amplifier U1B, the resistor R132, the resistor R82 and the light emitting diode D32 in series are connected to the 7-pin of the amplifier U1B, and the resistor R132 is connected to the 6-pin of the connector J1.

[0020] Preferably, the communication module comprises:

[0021] The GPRS module can send the vehicle abnormal state information in the form of short message or network data to the owner terminal;

[0022] The Bluetooth module is connected with the owner terminal in pairs and realizes the real-time viewing of the part anti-theft parameters of the vehicle within the Bluetooth range;

[0023] The Wi-Fi module is used for connecting the vehicle to the network and quickly transmitting the high-definition monitoring picture or data information to the owner terminal.

[0024] Preferably, the GPRS module comprises a connector P3, a MOS tube Q13 and a MOS tube Q23, the diode D23 is connected between the 1-pin and the 2-pin of the connector P3, the diode D13 is connected to the 2-pin of the connector P3, the resistor R23 is connected between the 1-pin and the 2-pin of the MOS tube Q13, the resistor R13 is connected to the 3-pin of the MOS tube Q13, the resistor R63 is connected between the 1-pin and the 2-pin of the MOS tube Q23, and the resistor R53 is connected to the 3-pin of the MOS tube Q23.

[0025] Preferably, the Bluetooth module comprises a chip U4, a capacitor C74 is connected to the 1st pin of the chip U4, a capacitor C134 and a resistor R204 are connected in parallel to the 1st pin of the chip U4, a capacitor C194 and a capacitor C204 are connected to the 8th pin of the chip U4 respectively, a capacitor C84, a capacitor C14 and a resistor R244 arranged in parallel are connected to the 7th pin of the chip U4.

[0026] A resistor R174 and a capacitor C54 are connected in series to the 2nd pin of the chip U4, a resistor R184 and a capacitor C64 are connected in series to the 3rd pin of the chip U4, a resistor R254 and a capacitor C94 are connected in series to the 6th pin of the chip U4, and a resistor R264 and a capacitor C014 are connected in series to the 5th pin of the chip U4.

[0027] Preferably, the Wi-Fi module comprises a chip U25, a chip U5 and a connector P5, the connector P5 is connected with the chip U25 and the chip U5 respectively, a resistor R45 is connected to the 2nd pin of the chip U25, a resistor R15 is connected to the 4th pin of the chip U25, a diode D15 and a resistor R35 are connected to the 7th pin of the chip U25 respectively, and a diode D25 and a resistor R25 are connected to the 8th pin of the chip U25 respectively.

[0028] A capacitor C15 is connected between the connecting end of the 6th pin of the connector P5 and the 1st pin of the chip U5 and the connecting end of the 5th pin of the connector P5 and the 2nd pin of the chip U5, a capacitor C25 is connected to the 4th pin of the chip U5, and a capacitor C35 and a capacitor C45 arranged in parallel are connected to the 5th pin of the chip U5.

[0029] Preferably, the executing module comprises an audible and visual alarm, the audible and visual alarm comprises a triode Q61, a triode Q62, a triode Q63, a triode Q64 and a loudspeaker LS6, the base of the triode Q63 and the collector of the triode Q64 are connected, the emitter of the triode Q61, the emitter of the triode Q62 and the emitter of the triode Q64 are connected to the 2nd pin of the loudspeaker LS6, and the collector of the triode Q63 is connected to the 1st pin of the loudspeaker LS6.

[0030] A capacitor C26, a capacitor C36, a resistor R66, a capacitor C46 and a resistor R56 are connected between the base of the triode Q61 and the 1st pin of the loudspeaker LS6, and a capacitor C16 is connected between the collector of the triode Q61 and the base of the triode Q62.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] 1. The utility model discloses a sensor module's design, vibration sensor and acoustic sensor can monitor the state of vehicle comprehensively, can acutely perceive the various abnormal conditions that vehicle can appear in parking or driving process, such as illegal pry, collision, vehicle door abnormal opening, glass is smashed etc.

[0033] 2. The utility model discloses a communication module's design, microcontroller module determines that the vehicle exists the exception, and communication module plays the role rapidly. With the help of GSM / GPRS module, bluetooth module or wi-fi module, the abnormal state information of vehicle is sent to the remote terminal that vehicle owner binds in advance in the form such as short message, network data etc., guarantees that vehicle owner receives the alarm information of vehicle in the first time, realizes remote real -time monitoring, and the control ability and response speed of vehicle owner to vehicle safety condition have been improved greatly. DRAWINGS

[0034] Figure 1 It is the system block diagram of the utility model;

[0035] Figure 2 It is the circuit diagram of vibration sensor of the utility model;

[0036] Figure 3 It is the circuit diagram of acoustic sensor of the utility model;

[0037] Figure 4 It is the circuit diagram of GPRS module of the utility model;

[0038] Figure 5 It is the circuit diagram of bluetooth module of the utility model;

[0039] Figure 6 It is the circuit diagram of wi-fi module of the utility model;

[0040] Figure 7 It is the circuit diagram of audible -visual alarm of the utility model. DETAILED DESCRIPTION

[0041] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0042] Please refer to Figures 1-7 The utility model provides a technical scheme: a kind of vehicle-mounted LCD liquid crystal display screen remote theftproof control system, comprising:

[0043] a sensor module responsible for detecting the change of vehicle state and providing a trigger signal;

[0044] The sensor module comprises:

[0045] a vibration sensor capable of sensing mechanical vibration signals and converting them into electrical signals. When the vehicle is subjected to a collision or prying, the vibration sensor can immediately sense the mechanical vibration signals and convert them into electrical signals. For example, when someone tries to force open the trunk or hit the vehicle body, the vibration sensor will respond immediately.

[0046] an acoustic sensor capable of capturing the frequency of broken glass. The acoustic sensor captures the specific frequency of sound emitted when the glass breaks, preventing theft from breaking the window.

[0047] The vibration sensor comprises a chip U1 and a connector P1. The 3-pin of the chip U1 is connected with a capacitor C2, an inclination switch K1, and a resistor R1 for supplying power. The 4-pin of the connector P1 is connected with a light-emitting diode D1 and a resistor R3 in series, a light-emitting diode D2 and a resistor R4 in series, and a resistor R5 and an adjustable resistor R2. One end of the resistor R3 is connected to the 3-pin of the connector P1. The resistor R4 and the resistor R5 are both connected to the 2-pin of the connector P1. The adjustable resistor R2 is connected to the 2-pin of the chip U1.

[0048] When the inclination switch K1 is in different states (such as inclined or not inclined), its conduction will change, thereby affecting the potential of pin 2 (IN) of the chip U1. The capacitor C1 is connected between the 4-pin and the 8-pin of the chip U1, which plays a filtering role to stabilize the power supply voltage.

[0049] The resistor R1 plays a current-limiting role to limit the current flowing into the input end of the chip U1. The capacitor C2 is mainly used to filter out high-frequency noise to prevent interference signals from affecting the normal work of the chip U1.

[0050] Two light-emitting diodes (D1, D2) are connected to the power supply VCC through resistors R3 and R4 respectively, and the cathodes are connected together and connected to the pin 1 (OUTA) of the chip U1 through the 2-pin (OUT) of the connector P1. When the pin 1 (OUTA) of the chip U1 outputs a high level, the current flows through D1 or D2 through R3 or R4 to make it emit light. When the pin 1 (OUTA) outputs a low level, D1 and D2 do not emit light.

[0051] The acoustic sensor comprises an electrically connected connector J1 and a connector P2, and an electrically connected amplifier U1A and an amplifier U1B. The amplifier U1A and the amplifier U1B are both connected to the connector J1.

[0052] The resistor R52 and the diode D102 are connected in series between the pin 1 of the amplifier U1A and the pin 5 of the amplifier U1B, the resistor R42, the capacitor C22 and the microphone MK1 are connected in sequence to the pin 2 of the amplifier U1A, the resistor R22 is connected between the pin 1 and the pin 2 of the amplifier U1A, the capacitor C42 and the resistor R122 are connected in parallel to the pin 5 of the amplifier U1B, the resistor R132 and the resistor R82 in series are connected to the pin 7 of the amplifier U1B, and the resistor R132 is connected to the pin 6 of the connector J1.

[0053] The diode D12 connected to the pin 4 of the connector J1 prevents the reverse connection of the power supply, protects the circuit, and one end of the microphone MK1 is connected to the power supply VCC, the other end is grounded GND through the resistor R32 (10kΩ), and is connected to the subsequent circuit through the capacitor C22 (0.1uF) for collecting sound signals and converting them into electrical signals.

[0054] The resistor R32 is connected in parallel with the microphone MK1 to provide a bias voltage for the microphone to work in a suitable state; the capacitor C22 is connected between the microphone MK1 and the subsequent circuit, and functions as a direct current blocking and alternating current passing device, allowing only alternating audio signals output by the microphone to pass through and blocking direct current components;

[0055] One end of the resistor R42 is connected to the capacitor C22, and the other end is connected to the pin 2 of the operational amplifier U1A, which together with the subsequent resistor constitutes an input resistance network of the amplification circuit; the amplifier U1A and the surrounding resistors and capacitors constitute an audio signal amplification circuit to amplify the weak audio signals input by the microphone; the resistor R62 provides a direct current bias voltage for the amplifier U1A to determine the static working point of the amplification circuit.

[0056] The diode D102 is connected to the subsequent circuit through the resistor R52, which functions as an amplitude limiting protection to prevent the output signal from damaging the subsequent circuit elements due to excessive amplitude; the capacitor C42 is used to filter high-frequency noise in the audio signal to make the output signal smoother.

[0057] The operational amplifier U1B and the surrounding elements constitute a comparison circuit to output high and low levels according to the size of the input signal to control the brightness of the blue light-emitting diode; the resistor R82 provides current limiting protection for the light-emitting diode D32, and the blue light-emitting diode D32 is used to indicate the state of the audio signal and is lit when the input signal reaches a certain threshold.

[0058] A communication module for building an information bridge between a vehicle and a remote terminal of an owner and timely transmitting anti-theft information;

[0059] The communication module comprises:

[0060] The vehicle abnormal state information can be sent to the GPRS module of the owner terminal in the form of short message or network data; with the network of the mobile operator, the abnormal state of the vehicle, such as the vehicle door being pried, abnormal vibration and the like, is sent to the mobile phone of the owner in the form of short message or network data. The owner can know the vehicle condition in the first time even if he is thousands of miles away.

[0061] The Bluetooth module is connected with the owner terminal in pairs and realizes real-time viewing of part of the anti-theft parameters of the vehicle by the owner within the Bluetooth range; in the near distance scene, the Bluetooth module can be quickly connected with the smart phone of the owner in pairs. The owner can view part of the anti-theft parameters of the vehicle in real time or make simple settings for the anti-theft system within the Bluetooth coverage range without consuming mobile network traffic.

[0062] The Wi-Fi module is used for connecting the vehicle to the network and quickly transmitting the high-definition monitoring picture or data information to the owner terminal. If the vehicle is in an area covered by a Wi-Fi hotspot, the module can be connected to the network to realize faster data transmission speed and is used for transmitting the high-definition monitoring picture and the like to the owner terminal.

[0063] The GPRS module comprises a connector P3, a MOS tube Q13 and a MOS tube Q23, a diode D23 is connected between the 1st pin and the 2nd pin of the connector P3, a diode D13 is connected to the 2nd pin of the connector P3, a resistor R23 is connected between the 1st pin and the 2nd pin of the MOS tube Q13, a resistor R13 is connected to the 3rd pin of the MOS tube Q13, a resistor R63 is connected between the 1st pin and the 2nd pin of the MOS tube Q23, and a resistor R53 is connected to the 3rd pin of the MOS tube Q23.

[0064] The diode D13 and the diode D23 constitute a simple anti-reverse connection circuit of power supply. When the external power supply VBAT is correctly connected (the positive electrode is connected to the cathode of the diode D23, and the negative electrode is connected to the ground), the current can flow to the VCC through the diode D23 to supply power to the circuit. If the power supply is reversed, the diode D23 is reverse-biased to prevent the current from flowing in the reverse direction and protect the circuit elements from being damaged. At the same time, the diode D13 plays a certain isolation role to prevent the current of the VCC from flowing back to the VBAT. The connector P3 is used for connecting the external power supply VBAT to provide working voltage for the entire circuit.

[0065] When the TXD signal is high, the gate voltage of MOS tube Q13 is higher than its threshold voltage, MOS tube Q13 is turned on, VDD_EXT is connected to TXD1 through resistance R23 and turned-on MOS tube Q13, so that TXD1 outputs high level; when the TXD signal is low, MOS tube Q13 is cut off, TXD1 is pulled up to VDD_EXT through resistance R23, and outputs low level. In this way, the conversion from the level of TXD to the level of TXD1 is realized, wherein V_TTL and VDD_EXT can be different voltage domains, meeting the requirements of different circuit modules on the level.

[0066] Similarly, when the RXD signal is high, MOS tube Q23 is turned on, VDD_EXT is connected to RXD1 through resistance R63 and turned-on MOS tube Q23, so that RXD1 outputs high level; when the RXD signal is low, MOS tube Q23 is cut off, RXD1 is pulled up to VDD_EXT through resistance R63, and outputs low level, realizing the conversion of the level.

[0067] The Bluetooth module comprises a chip U4, a capacitor C74 is connected to the 1st pin of the chip U4, a capacitor C134 and a resistance R204 are connected in parallel, a capacitor C194 and a capacitor C204 are respectively connected to the 8th pin of the chip U4, a capacitor C84, a capacitor C14 and a resistance R244 are connected in parallel to the 7th pin of the chip U4;

[0068] A resistance R174 and a capacitor C54 are connected in series to the 2nd pin of the chip U4, a resistance R184 and a capacitor C64 are connected in series to the 3rd pin of the chip U4, a resistance R254 and a capacitor C94 are connected in series to the 6th pin of the chip U4, and a resistance R264 and a capacitor C014 are connected in series to the 5th pin of the chip U4.

[0069] SPKL-N and SPKL-P: are audio signal input terminals, connected to subsequent circuits through capacitors C54 (225pF) and C64 (225pF) respectively, and the capacitors play a role in blocking direct current and passing alternating current, only allowing audio signals to pass through and blocking direct current components;

[0070] Resistances R174 and R184: are connected in series after capacitors C54 and C64 respectively, and together with subsequent resistances, form an input resistance network of an operational amplifier, affecting input impedance and signal amplification factor.

[0071] Pin 1 of chip U4 is connected to output terminal LOUT through capacitor C134 (20pF) and resistor R204 (47KΩ), which constitute a feedback network, affecting the frequency response and stability of the amplifier; pin 2 of chip U4 is connected to the connection point of resistors R174 and R204, receiving the input audio signal, and resistors R194 and R214 constitute a voltage dividing circuit, providing a DC bias voltage for the in-phase input terminal, determining the static working point of the amplifier.

[0072] Capacitors C194 and C204 serve as power supply filtering, filtering out high-frequency noise in the power supply and stabilizing the power supply voltage. Capacitor C214 and resistor R214 constitute an RC filter circuit, further filtering out power supply noise and providing a purer DC bias voltage for the in-phase input terminal.

[0073] Capacitors C74 and C14 serve as output coupling, coupling the amplified audio signal to the output terminal while blocking the DC component to prevent the DC voltage from damaging the subsequent load speaker. SPKR-N and SPKR-P: are load speaker interfaces, connected to output terminals ROUT and LOUT through capacitors C94 (225pF) and C104 (225pF) respectively, and the capacitors serve as DC blocking and AC passing, transmitting the audio signal to the speaker and driving the speaker to produce sound.

[0074] The Wi-Fi module includes chip U25, chip U5, and connector P5, which are connected to each other. Pin 2 of chip U25 is connected to resistor R45, pin 4 of chip U25 is connected to resistor R15, pin 7 of chip U25 is connected to diode D15 and resistor R35 respectively, and pin 8 of chip U25 is connected to diode D25 and resistor R25 respectively.

[0075] Capacitor C15 is connected between the connection terminals of pin 1 of chip U5 and pin 2 of chip U5, capacitor C25 is connected to pin 4 of chip U5, and capacitor C35 and capacitor C45 are connected in parallel to pin 5 of chip U5.

[0076] Pins 7 (RXD) and 8 (TXD) of chip U25 are used for serial communication and are connected to external RXDTTL and TXDTTL signals respectively, and two diodes D15 and D25 (MBR0520) and resistors R25 (5.6KΩ) and R35 (5.6KΩ) are used for level conversion and protection.

[0077] The execution module executes anti-theft protection action to prevent the vehicle from being stolen; pin 9 (RESET) of chip U25 is connected to 3.3V power supply (VCC3.3) through resistor R65 (1KΩ), and can be reset by an external signal.

[0078] Anode of light emitting diode PWR is connected to 3.3V power supply (VCC3.3) through resistor R75 (512Ω), and cathode is grounded GND, which is used for indicating power supply state, and the light emitting diode is lit when the power supply is normal.

[0079] The execution module includes an acousto-optic alarm, which includes triode Q61, triode Q62, triode Q63, triode Q64, and speaker LS6, the base of triode Q63 is connected to the collector of triode Q64, the emitter of triode Q61, the emitter of triode Q62, and the emitter of triode Q64 are connected to pin 2 of speaker LS6, and the collector of triode Q63 is connected to pin 1 of speaker LS6.

[0080] Capacitors C26, C36, resistor R66, capacitor C46, and resistor R56 are connected between the base of triode Q61 and pin 1 of speaker LS6, and capacitor C16 is connected between the collector of triode Q61 and the base of triode Q62.

[0081] Resistors R16 (1KΩ) and R46 (1KΩ) are respectively connected in series between the collectors of Q61 and Q62 and light emitting diodes LED1 and LED2, which are used for current limiting and protecting the light emitting diodes.

[0082] Light emitting diodes LED1 and LED2 are respectively connected between the collectors of Q61 and Q62 and resistors R16 and R46, which are used for indicating oscillation state of the circuit, and the corresponding light emitting diode is lit when the transistor is turned on.

[0083] One end of speaker LS6 is connected to the collector of Q63 through resistor R56, and the other end is grounded, which converts amplified audio signal into sound output.

[0084] The LCD display module is used for displaying working state of the remote anti-theft control system and vehicle information; in daily states such as vehicle starting and parking, it displays normal prompt information such as whether the current anti-theft system is set or not and whether the vehicle door is closed or not; once an abnormality occurs, it switches the screen to present specific abnormal content, such as "right rear door is abnormally opened", which helps the vehicle owner to quickly understand the situation

[0085] The microcontroller module coordinates the work of the above-mentioned multiple modules, processes the signals sent by the sensor module, and makes corresponding decisions; the microcontroller module receives the electrical signals of the sensor, judges whether the vibration intensity exceeds the normal range, whether the opening of the vehicle door is in compliance, etc. Once it is determined that there is an abnormality, it immediately issues an instruction to the communication module and the execution module.

[0086] The power module provides stable power supply for the remote anti-theft control system and is electrically connected with the sensor module, the communication module, the execution module, the LCD display module and the microcontroller module; the 12V or 24V direct current output by the vehicle battery is converted into working voltages suitable for the circuit modules through a series of processes such as voltage reduction, voltage stabilization and filtering, such as the commonly used 3.3V and 5V voltages of the microcontroller. At the same time, it also has a certain energy storage capacitor or backup battery to prevent the vehicle battery from suddenly being powered off, maintain the temporary emergency operation of the anti-theft system, and continue to send alarm information.

[0087] The sensor module, the communication module, the execution module and the LCD display module are electrically connected with the microcontroller module.

[0088] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A remote anti-theft control system for a vehicle-mounted LCD liquid crystal display screen, characterized in that, It comprises: a sensor module responsible for detecting changes in vehicle status and providing trigger signals; a communication module for building a bridge of information between the vehicle and the owner's remote terminal and timely transmitting anti-theft information; an execution module for performing anti-theft protection actions to prevent the vehicle from being stolen; an LCD display module for displaying the working status of the remote anti-theft control system and vehicle information; a microcontroller module for coordinating the work of the above-mentioned modules, processing signals sent by the sensor module, and making corresponding decisions; a power module for providing stable power supply for the remote anti-theft control system and electrically connecting with the sensor module, communication module, execution module, LCD display module, and microcontroller module; The sensor module, communication module, execution module, and LCD display module are electrically connected with the microcontroller module.

2. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 1, characterized in that: The sensor module comprises: a vibration sensor that can sensitively perceive mechanical vibration signals and convert them into electrical signals; an acoustic sensor that can capture the frequency when the vehicle glass is broken.

3. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 2, characterized in that: The vibration sensor comprises a chip U1 and a connector P1. The 3-pin of the chip U1 is respectively connected with a capacitor C2, an inclination switch K1, and a resistor R1 that provides power supply. The 4-pin of the connector P1 is respectively connected with a series of a light-emitting diode D1 and a resistor R3, a series of a light-emitting diode D2 and a resistor R4, and a resistor R5 and an adjustable resistor R2. One end of the resistor R3 is connected to the 3-pin of the connector P1. The resistor R4 and the resistor R5 are both connected to the 2-pin of the connector P1. The adjustable resistor R2 is connected to the 2-pin of the chip U1.

4. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 2, characterized in that: The acoustic sensor comprises an electrically connected connector J1 and a connector P2, and an electrically connected amplifier U1A and an amplifier U1B. The amplifier U1A and the amplifier U1B are both connected to the connector J1. A resistor R52 and a diode D102 are connected in series between the 1-pin of the amplifier U1A and the 5-pin of the amplifier U1B. A resistor R42, a capacitor C22, and a microphone MK1 are connected in series to the 2-pin of the amplifier U1A. A resistor R22 is connected between the 1-pin and the 2-pin of the amplifier U1A. A capacitor C42 and a resistor R122 are connected in parallel to the 5-pin of the amplifier U1B. A resistor R132, a series of a resistor R82 and a light-emitting diode D32 are connected to the 7-pin of the amplifier U1B. The resistor R132 is connected to the 6-pin of the connector J1.

5. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 1, characterized in that: The communication module comprises: a GPRS module that can send vehicle abnormal state information to the owner's terminal in the form of a short message or network data; a Bluetooth module that is paired with the owner's terminal and allows the owner to view part of the anti-theft parameters of the vehicle in real time within the Bluetooth range; a Wi-Fi module for connecting the vehicle to the network and quickly transmitting high-definition monitoring pictures or data information to the owner's terminal.

6. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 5, characterized in that: The GPRS module includes connector P3, MOS tube Q13, MOS tube Q23, diode D23 is connected between the 1st pin and the 2nd pin of the connector P3, diode D13 is connected to the 2nd pin of the connector P3, resistance R23 is connected between the 1st pin and the 2nd pin of the MOS tube Q13, resistance R13 is connected to the 3rd pin of the MOS tube Q13, resistance R63 is connected between the 1st pin and the 2nd pin of the MOS tube Q23, and resistance R53 is connected to the 3rd pin of the MOS tube Q23.

7. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 5, characterized in that: The Bluetooth module includes chip U4, the 1st pin of the chip U4 is connected with capacitor C74, capacitor C134 and resistance R204 in parallel, the 8th pin of the chip U4 is connected with capacitor C194 and capacitor C204 respectively, the 7th pin of the chip U4 is connected with capacitor C84, capacitor C14 and resistance R244 in parallel; The 2nd pin of the chip U4 is connected with resistance R174 and capacitor C54 in series, the 3rd pin of the chip U4 is connected with resistance R184 and capacitor C64 in series, the 6th pin of the chip U4 is connected with resistance R254 and capacitor C94 in series, and the 5th pin of the chip U4 is connected with resistance R264 and capacitor C014 in series.

8. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 5, characterized in that: The Wi-Fi module includes chip U25, chip U5 and connector P5, the connector P5 is connected with the chip U25 and the chip U5 respectively, the 2nd pin of the chip U25 is connected with resistance R45, the 4th pin of the chip U25 is connected with resistance R15, the 7th pin of the chip U25 is connected with diode D15 and resistance R35 respectively, and the 8th pin of the chip U25 is connected with diode D25 and resistance R25 respectively. The 6th pin of the connector P5 and the 1st pin of the chip U5 are connected with capacitor C15, the 4th pin of the chip U5 is connected with capacitor C25, and the 5th pin of the chip U5 is connected with capacitor C35 and capacitor C45 in parallel.

9. The vehicle-mounted LCD liquid crystal display screen remote theft prevention control system according to claim 1, characterized in that: The execution module includes sound light alarm, the sound light alarm includes triode Q61, triode Q62, triode Q63, triode Q64 and loudspeaker LS6, the base of the triode Q63 and the collector of the triode Q64 are connected, the emitter of the triode Q61, the emitter of the triode Q62 and the emitter of the triode Q64 are connected to the 2nd pin of the loudspeaker LS6, and the collector of the triode Q63 is connected to the 1st pin of the loudspeaker LS6; The capacitor C26, capacitor C36, resistance R66, capacitor C46 and resistance R56 are connected between the base of the triode Q61 and the 1st pin of the loudspeaker LS6, and the capacitor C16 is connected between the collector of the triode Q61 and the base of the triode Q62.

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