CN108639011B - Vehicle-mounted security system and implementation method thereof - Google Patents

Abstract

The invention discloses a vehicle-mounted security system and a realization method thereof, comprising: an unmanned monitoring device, a vehicle door control subsystem, an alcohol detection subsystem, an engine control subsystem, an intelligent terminal and a main control subsystem. In the vehicle engine startup mode, the present invention firstly introduces identity verification to improve security, introduces instruction verification to provide convenience for the vehicle owner to remotely authorize others to drive, and opens the vehicle door through the intelligent terminal to provide convenience and practicability for the vehicle owner to forget his key. Strong; the gas alcohol sensor and the sweat alcohol sensor are used again to collect the driver's alcohol content at the same time, and the measurement time must be within the set time range to ensure the accuracy of the alcohol content measurement; finally, the identity verification or remote command verification is carried out, and the door is normal. Turn on the engine, check the alcohol concentration to start the engine. The conditions for starting the engine are complex, which not only ensures the safety of the vehicle, but also effectively avoids the situation of drunk driving, ensures personal safety, and has strong practicability.

Description

A vehicle-mounted security system and its realization method

technical field

The invention relates to the technical field of automobile security, and more particularly to a vehicle security system and a realization method thereof.

Background technique

With the development of society and economy, people's living range is getting wider and wider, which also promotes the development and growth of the automobile industry market. With the continuous increase in the number of vehicles used, the security measures of automobiles have not made great progress. Security system is an important technical means to implement security control.

At present, the anti-theft logic of the car engine is: when the ignition switch is turned on, the key transponder and the anti-theft controller form the first information exchange, the identification code of the key and the chip is different, the anti-theft controller will not continue to communicate with the ECU, the ignition system and the fuel injection system. The circuit remains open and the engine cannot be started. If the signals match, the anti-theft controller receives the verification request sent by the ECU, calculates a 128-bit encrypted password according to the set 32-bit random code, and then the ECU and the anti-theft controller meet each other. can start normally. However, engine anti-theft is not a panacea. The decoder can be found in the market for less than a few thousand dollars, and there are also hidden dangers. If the key of the vehicle is lost, it can be quickly found from the nearby parking lot through the key. The matching vehicle causes the vehicle to be stolen, that is, the existing engine start condition is single, and the practicability is poor.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a vehicle-mounted security system and an implementation method thereof, which are used to solve the problems of single engine start-up conditions and poor practicability in the prior art.

An embodiment of the present invention provides a vehicle-mounted security system, including: an unmanned monitoring device, a door control subsystem, an alcohol detection subsystem, an engine control subsystem, an intelligent terminal, and a main control subsystem, and the unmanned monitoring device, all the The door control subsystem, the alcohol detection subsystem, the engine control subsystem and the intelligent terminal are all electrically connected to the main control subsystem;

The unmanned monitoring device includes: a collection device, a monitoring switch control module, a switch reminder module, a distance calculation module, an image monitoring module and a monitoring protection module; the collection device is arranged in the middle of the roof, and the collection device includes: A telescopic motor device, a protective cover, a plurality of infrared sensors, a plurality of cameras and a plurality of LED lights; the telescopic motor device, a plurality of the infrared sensors, a plurality of the cameras, a plurality of the LED lights, the monitoring The switch control module, the switch reminder module, the distance calculation module, the image monitoring module and the monitoring protection module are all electrically connected with the main control subsystem;

Wherein, the fixed part of the telescopic motor device is arranged at the bottom of the groove, the top of the telescopic part of the telescopic motor device is provided with a protective cover matching the opening of the groove, and the cover edge of the protective cover is provided with a plurality of collection blocks , each acquisition block is integrated with an infrared sensor, a camera and an LED light, and the acquisition range formed by a plurality of the acquisition blocks is a complete vehicle surrounding space;

Wherein, the monitoring switch control module is configured to, when the main control subsystem receives the monitoring switch turn-on command from the smart terminal, the telescopic motor device is extended, the plurality of infrared sensors are turned on, and the plurality of infrared sensors are turned on. The camera is in standby, and a plurality of the LED lights are turned on; and when the main control subsystem receives a monitoring switch closing command from the intelligent terminal, the telescopic motor device retracts, and a plurality of the The infrared sensor is turned off, a plurality of the cameras are turned off, and a plurality of the LED lights are turned off;

Wherein, the switch reminder module is used to start timing when the main control subsystem receives the monitoring switch on command or the monitoring switch off command from the smart terminal, and when the timing time reaches a preset reminder time, Send a reminder signal through the intelligent terminal;

Wherein, the distance calculation module is used to turn on the camera on the corresponding acquisition block to perform video acquisition when the infrared sensor senses a person, and extract the spatial images of the person and the vehicle in the video, through the acquisition of the image and the actual The scaling of the size to determine the actual relative distance between the person and the car;

Wherein, the image monitoring module is configured to display the video image collected by the camera in real time through the intelligent terminal when the actual relative distance between the person and the vehicle is less than the preset monitoring distance;

Wherein, the monitoring and protection module is used to display the collected data from the camera in real time through the intelligent terminal when the actual relative distance between the person and the vehicle is less than the distance between the unmanned monitoring device and the edge of the vehicle at the corresponding position the video image, and at the same time control the telescopic motor device to retract into the groove through the main control subsystem;

The door control subsystem includes: an identity verification unit, a remote verification unit, a door line connection unit, an electronic lock control door unit and a terminal control door unit, and the identity verification unit, the remote verification unit, and the door line are connected The unit, the electronic lock control door unit and the terminal control door unit are all electrically connected to the main control subsystem;

Wherein, the identity verification unit is used to perform identity verification by matching fingerprint information or avatar information or RFID card information with pre-stored fingerprint information or pre-stored avatar information or pre-stored RFID card information in the main control subsystem; the remote The verification unit is used for sending remote verification result information to the main control subsystem according to the avatar information obtained by the intelligent terminal through the main control subsystem; the door line connection unit is used for when the identity verification is successful or the remote When the verification is successful, the main control subsystem controls the first electromagnetic switch to connect the ECU system and the door control system, otherwise the ECU system and the door control system are disconnected; the electronic lock controls the door unit, which is used when the identity verification is successful or When the remote verification is successful, a door opening command is sent to the ECU system through the electronic lock, and the ECU system controls the door control system to open the door; the terminal controls the door unit, and is used for when the identity verification is successful or the remote verification is successful, the intelligent terminal passes all The main control subsystem sends a door opening command to the ECU system, and the ECU system controls the door control system to open the door;

The alcohol detection subsystem includes: a non-contact alcohol sensor, multiple contact alcohol sensors, multiple pressure sensors, a timing module and an alcohol concentration analysis module;

Wherein, the non-contact alcohol sensor is movably arranged in front of the driver's seat through a bracket; a plurality of the contact alcohol sensors and a plurality of the pressure sensors are arranged in the permeable surface layer on the bracket; the timing module is used for the hand The effective detection time when the pressure value of the pressure sensor is greater than the preset pressure value when holding the bracket is calculated; the alcohol concentration analysis module is used to analyze the alcohol concentration obtained within the effective detection time less than the preset effective detection time range, And compare it with the standard alcohol concentration value for driving;

The engine control subsystem is used to control the second electromagnetic switch when the main control subsystem receives the switch closing command from the intelligent terminal, the door opening command from the ECU system, and the alcohol concentration reaching the standard command Connect the ECU system to the engine control system;

The intelligent terminal is embedded with an on-board monitoring APP, and the on-board monitoring APP includes: a monitoring switch module, a time reminder module, a display control module, a remote switch module and a door switch module;

Wherein, the monitoring switch module is used to send a monitoring switch on command or a monitoring switch off command to the main control subsystem by touch; the time reminder module is used to send a reminder signal for checking the monitoring switch status; the display control The module is used to turn on and display image information, avatar information and alcohol concentration information; the remote switch module is used to send a remote verification success command or a remote verification failure command to the main control subsystem by touch; the door switch module , which is used to send an ECU door opening command or an ECU door closing command to the main control subsystem in a touch manner.

Further, the vehicle-mounted security system provided by the embodiment of the present invention further includes: an in-vehicle environment monitoring subsystem; the in-vehicle environment monitoring subsystem includes: a temperature sensor, an air quality sensor, a vibration sensor, and a smoke sensor, and the temperature The sensor, the air quality sensor, the vibration sensor and the smoke sensor are all electrically connected to the main control subsystem.

Further, the intelligent terminal and the main control subsystem perform wireless communication through one or more of a 3G network, a 4G network, a WIFI network, and a GPRS mobile network.

Preferably, the vehicle-mounted security system provided by the embodiment of the present invention further includes: a vehicle tracking subsystem arranged in the vehicle and under the vehicle body; the vehicle tracking subsystem includes: a first GPS positioning module and a first position calculation module and a position sharing module, wherein the first GPS positioning module, the position calculating module and the position sharing module are all electrically connected to the main control subsystem;

Wherein, the first GPS positioning module is used to obtain the position information of the car; the first position calculation module is used to obtain the position information of the car and the GIS geography pre-stored in the memory of the main control subsystem according to the position information of the car. information to determine the geographic information of the vehicle; the location sharing module is used to send the geographic information of the vehicle to the intelligent terminal in real time, and display the dynamic geographic location of the vehicle through the GIS map of the intelligent terminal.

Preferably, the vehicle-mounted security system provided by the embodiment of the present invention further includes: a key tracking subsystem embedded in the card card on the key chain; the key tracking subsystem includes: a second GPS positioning module, a second position solution The second GPS positioning module, the second position calculation module, the navigation module, the voice communication module and the sound and light alarm module are all electrically connected with the main control subsystem;

Wherein, the second GPS positioning module is used to obtain the position information of the key chain; the second position calculation module is used to obtain the position information of the key chain according to the position information of the key chain and the pre-stored memory in the main control subsystem. GIS geographic information, to determine the geographic information of the keychain; the navigation module, used to send the geographic information of the keychain to the intelligent terminal, and display and navigate the geographic location of the keychain through the GIS map of the intelligent terminal; the The voice communication module is used for realizing voice communication between the key tracking subsystem and the intelligent terminal; the sound and light alarm module is used for sound and light alarm according to the alarm command sent by the intelligent terminal.

Further, the unmanned monitoring device further includes: a reminder time setting module; the reminder time setting module is used to set a preset reminder time.

Further, the main control subsystem adopts an ARM microprocessor.

An embodiment of the present invention provides a method for implementing a vehicle-mounted security system, including:

Step 1: When the main control subsystem receives the monitoring switch on command from the intelligent terminal, it realizes unmanned monitoring and security; the specific steps include:

Step 11: Set the collection device in the middle of the roof; wherein, the fixed part of the telescopic motor device is set at the bottom of the groove, the top of the telescopic part of the telescopic motor device is provided with a protective cover matching the opening of the groove, and the cover edge of the protective cover is on the top There are multiple acquisition blocks, each of which is integrated with an infrared sensor, a camera and an LED light, and the acquisition range formed by the multiple acquisition blocks is a complete vehicle surrounding space;

Step 12: When the infrared sensor senses a person, turn on the camera on the corresponding acquisition block for video acquisition, and extract the spatial image of the person and the vehicle in the video. actual relative distance;

Step 13: when the actual relative distance between the person and the vehicle is less than the preset monitoring distance, display the video image collected by the camera in real time through the intelligent terminal;

Step 14: When the actual relative distance between the person and the vehicle is smaller than the distance between the unmanned monitoring device and the edge of the vehicle at the corresponding position, the video image captured by the camera is displayed in real time through the intelligent terminal, and the telescopic motor is controlled through the main control subsystem. The device is retracted into the groove;

Step 2: When the main control subsystem receives the monitoring switch closing command from the intelligent terminal, it realizes the security of vehicle starting; the specific steps include:

Step 21: Perform identity verification by matching fingerprint information or avatar information or RFID card information with pre-stored fingerprint information or pre-stored avatar information or pre-stored RFID card information in the main control subsystem;

Step 22: Send remote verification result information to the main control subsystem according to the avatar information obtained by the intelligent terminal through the main control subsystem;

Step 23: When the identity verification is successful or the remote verification is successful, the main control subsystem controls the first electromagnetic switch to connect the ECU system and the door control system, otherwise disconnect the ECU system and the door control system;

Step 24: When the identity verification is successful or the remote verification is successful, the door opening command is sent to the ECU system through the electronic lock, and the ECU system controls the door control system to open the door;

Step 25: When the identity verification is successful or the remote verification is successful, the intelligent terminal sends a door opening command to the ECU system through the main control subsystem, and the ECU system controls the door control system to open the door;

Step 26: The non-contact alcohol sensor is movably arranged in front of the driver's seat through a bracket, and a plurality of contact alcohol sensors and a plurality of pressure sensors are arranged in the permeable surface layer on the bracket;

Step 27: Calculate the effective detection time when the pressure value of the pressure sensor is greater than the preset pressure value when the hand is holding the bracket, and analyze the alcohol concentration obtained within the range where the effective detection time is less than the preset effective detection time, and compare it with the driving standard alcohol concentration. value to compare;

Step 28: When the main control subsystem receives the door opening command and the alcohol concentration reaching command from the ECU system, it controls the second electromagnetic switch to connect the ECU system and the engine control system;

Step 3: When the main control subsystem receives the monitoring switch on command or the monitoring switch off command from the smart terminal, it starts timing, and when the timing time reaches the preset reminder time, a reminder signal is sent through the smart terminal.

Preferably, the implementation method of the vehicle-mounted security system provided by the embodiment of the present invention further includes: a vehicle tracking step; specifically:

Step 41: Set up the vehicle tracking subsystem in the car and under the body;

Step 42: Obtain the location information of the vehicle through the first GPS positioning module;

Step 43: Determine the geographic information of the vehicle according to the location information of the vehicle and the GIS geographic information pre-stored in the memory of the main control subsystem;

Step 44: Send the geographic information of the vehicle to the intelligent terminal in real time, and display the dynamic geographic location of the vehicle through the GIS map of the intelligent terminal.

Preferably, the implementation method of the vehicle-mounted security system provided by the embodiment of the present invention further includes: a key tracking step; specifically:

Step 51: embed a key tracking subsystem in the card on the key chain;

Step 52: Obtain the location information of the key chain through the second GPS positioning module;

Step 53: Determine the geographic information of the key chain according to the position information of the key chain and the GIS geographic information pre-stored in the memory of the main control subsystem;

Step 54: sending the geographic information of the key chain to the intelligent terminal, and displaying and navigating the geographic position of the key chain through the GIS map of the intelligent terminal;

Step 55: realize the voice communication between the key tracking subsystem and the intelligent terminal through the voice communication module;

Step 56 : sound and light alarm is performed according to the alarm command sent by the intelligent terminal.

In the embodiment of the present invention, a vehicle-mounted security system and an implementation method thereof are provided. Compared with the prior art, the beneficial effects thereof are as follows:

In the present invention, the unmanned monitoring mode is turned on when the vehicle owner leaves the vehicle, and when the unmanned monitoring mode is turned off, the vehicle engine start mode is turned on, that is, the vehicle is fully protected when there are people or no one, and the safety of the vehicle is effectively ensured. Further, by regularly reminding to check the security mode of the vehicle (unmanned monitoring mode + vehicle engine start mode), the vehicle security system is improved in terms of time.

In the unmanned monitoring mode: by setting the acquisition device in the middle of the roof; according to the spatial image of the person and the vehicle in the acquired video, and by scaling the acquired image with the actual size, the actual relative distance between the person and the vehicle is determined; when When the actual relative distance between the person and the vehicle is less than the preset monitoring distance, the video image captured by the camera is displayed in real time through the smart terminal, that is, when someone enters the safe area, the video image is sent to the smart terminal, and the behavior of the person is observed through the video image. Whether it is car theft or car damage, if so, an alarm signal can be issued; when the actual relative distance between the person and the car is less than the distance between the unmanned monitoring device and the edge of the car at the corresponding position, the camera will be displayed in real time through the smart terminal. At the same time, the main control subsystem controls the telescopic motor device to retract into the groove, that is, when someone's hand enters the safe range of the monitoring device, the video image is sent to the smart terminal, and the video image is used to observe whether the person's behavior is sabotage. Monitor the behavior of the device, if it is, it can issue an alarm signal, and at the same time withdraw the monitoring device to avoid damage. It can be seen that in the unmanned monitoring mode, the remote video monitoring of the vehicle is not only realized by accurate distance calculation, so that the owner can take timely measures, but also the effective protection of the monitoring device is realized.

In the vehicle engine start mode, first pass the identity verification or remote command verification, after the verification is successful, the ECU system and the door control system are connected, and then the door is opened through the electronic lock or smart terminal; that is, the introduction of identity verification improves security, and the introduction of command verification is It is convenient for the car owner to authorize others to drive remotely, and opening the car door through the smart terminal provides convenience and practicability for the car owner who forgets the key. Once again, the non-contact alcohol sensor is movably arranged in front of the driver's seat through the bracket, and multiple contact alcohol sensors and multiple pressure sensors are arranged in the permeable surface layer on the bracket. Set the effective detection time of the pressure value to calculate, and analyze the alcohol concentration obtained when the effective detection time is less than the preset effective detection time, and compare it with the standard alcohol concentration value for driving; that is, the gas alcohol sensor and the sweat alcohol sensor are used at the same time. The alcohol content of the driver is collected, and the measurement time must be within the set time range, so as to ensure the accuracy of the alcohol content measurement. Finally, when the door is opened normally and the conditions for the alcohol concentration to meet the standard are met at the same time, the ECU system and the engine control system are turned on, and the engine can be started at this time, that is, before the engine is started, identity verification or remote command verification is required, the door is opened normally, and the alcohol The engine can be turned on only after the concentration detection. The conditions for turning on the engine are complex, which not only ensures the safety of the vehicle, but also effectively avoids the situation of drunk driving, ensures personal safety, and has strong practicability.

Description of drawings

FIG. 1 is an overall schematic block diagram of a vehicle-mounted security system provided by an embodiment of the present invention;

FIG. 2 is a functional realization principle diagram of an unmanned monitoring device provided by an embodiment of the present invention;

3 is a schematic structural diagram of a protective cover in an unmanned monitoring device provided by an embodiment of the present invention;

FIG. 4 is a functional realization principle diagram of a door control subsystem provided by an embodiment of the present invention;

FIG. 5 is a functional realization principle diagram of an alcohol detection subsystem provided by an embodiment of the present invention;

FIG. 6 is a functional realization principle diagram of an engine control subsystem provided by an embodiment of the present invention;

7 is a functional block diagram of an intelligent terminal provided by an embodiment of the present invention;

8 is a functional block diagram of an in-vehicle environment monitoring subsystem provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of a functional realization of a vehicle tracking subsystem provided by an embodiment of the present invention;

FIG. 10 is a functional realization principle diagram of a key tracking subsystem provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1 to 10, a vehicle-mounted security system provided by an embodiment of the present invention includes: an unmanned monitoring device 1, a door control subsystem 2, an alcohol detection subsystem 3, an engine control subsystem 4, an intelligent terminal 5, and a main A control subsystem 6 , and the unmanned monitoring device 1 , the door control subsystem 2 , the alcohol detection subsystem 3 , the engine control subsystem 4 and the intelligent terminal 5 are all electrically connected to the main control subsystem 6 .

To further explain, the intelligent terminal 5 and the main control subsystem 6 conduct wireless communication through one or more of the 3G network, the 4G network, the WIFI network, and the GPRS mobile network.

Further explanation, the main control subsystem 6 involved in the present invention preferably adopts an ARM microprocessor.

The specific functional principle of the unmanned monitoring device 1 is described as follows:

Specifically, the unmanned monitoring device 1 includes: a collection device, a monitoring switch control module 12, a switch reminder module 13, a distance calculation module 14, an image monitoring module 15, and a monitoring protection module 16; The device includes: a telescopic motor device 111 , a protective cover 112 , a plurality of infrared sensors 113 , a plurality of cameras 114 and a plurality of LED lights 115 ; , the monitoring switch control module 12 , the switch reminder module 13 , the distance calculation module 14 , the image monitoring module 15 and the monitoring protection module 16 are all electrically connected to the main control subsystem 6 .

The fixed part of the telescopic motor device 111 is provided at the bottom of the groove, the top of the telescopic part of the telescopic motor device 111 is provided with a protective cover 112 matching the opening of the groove, and the cover edge of the protective cover 112 is provided with a plurality of collecting blocks, each Each acquisition block is integrated with an infrared sensor 113 , a camera 114 and an LED light 115 , and the acquisition range formed by the multiple acquisition blocks is a complete space around the vehicle.

It should be noted that the shape structure of the protective cover 112 is a circular truncated structure with a large upper radius and a small lower radius, which is convenient for setting the positions of the infrared sensor 113 , the camera 114 and the LED light 115 .

Among them, the monitoring switch control module 12 is used for when the main control subsystem 6 receives the monitoring switch on command from the smart terminal 5, the telescopic motor device 111 is extended, the plurality of infrared sensors 113 are turned on, the plurality of cameras 114 are on standby, and the plurality of cameras 114 are on standby. The LED lights 115 are turned on; and when the main control subsystem 6 receives the monitoring switch off command from the smart terminal 5, the telescopic motor device 111 retracts, the infrared sensors 113 are turned off, the cameras 114 are turned off, and the multiple cameras 114 are turned off. The LED lights 115 are turned off.

Among them, the switch reminder module 13 is used to start timing when the main control subsystem 6 receives the monitoring switch on command or the monitoring switch off command from the smart terminal 5, and when the timing time reaches the preset reminder time, the smart terminal 5 Send a reminder signal.

Among them, the distance calculation module 14 is used to turn on the camera 114 on the corresponding acquisition block to perform video acquisition when the infrared sensor 113 senses a person, and extract the spatial image of the person and the vehicle in the video, by scaling the acquired image with the actual size Scale, which determines the actual relative distance between the person and the car.

The image monitoring module 15 is configured to display the video image collected by the camera 114 in real time through the intelligent terminal 5 when the actual relative distance between the person and the vehicle is less than the preset monitoring distance.

Wherein, the monitoring protection module 16 is used to display the video image collected by the camera 114 in real time through the intelligent terminal 5 when the actual relative distance between the person and the vehicle is less than the distance between the unmanned monitoring device 1 and the edge of the vehicle at the corresponding position, At the same time, the main control subsystem 6 controls the telescopic motor device 111 to retract into the groove.

Further, the unmanned monitoring device 1 further includes: a reminder time setting module 17; and a reminder time setting module 17, which is used for setting the preset reminder time.

To sum up, in the unmanned monitoring mode: by setting the acquisition device in the middle of the roof; according to the spatial image of the person and the vehicle in the collected video, and through the scaling ratio between the collected image and the actual size, determine the distance between the person and the vehicle. Actual relative distance; when the actual relative distance between the person and the vehicle is less than the preset monitoring distance, the video image captured by the camera is displayed in real time through the smart terminal, that is, when someone enters the safe area, the video image is sent to the smart terminal, and the video image is sent to the smart terminal. Observe whether the person's behavior is car theft or car damage, and if so, an alarm signal can be issued; when the actual relative distance between the person and the car is less than the distance between the unmanned monitoring device and the edge of the car at the corresponding location, the intelligent The terminal displays the video image collected by the camera in real time, and at the same time controls the telescopic motor device to retract into the groove through the main control subsystem, that is, when someone enters the safe range of the monitoring device, the video image is sent to the smart terminal, and the person is observed through the video image. Whether the behavior is the behavior of destroying the monitoring device, if so, an alarm signal can be issued, and the monitoring device can be retracted to avoid being destroyed. It can be seen that in the unmanned monitoring mode, the remote video monitoring of the vehicle is not only realized by accurate distance calculation, so that the owner can take timely measures, but also the effective protection of the monitoring device is realized.

The specific functional principle of the door control subsystem 2 is described as follows:

Specifically, the door control subsystem 2 includes: an identity verification unit 21, a remote verification unit 22, a door line connection unit 23, an electronic lock control door unit 24 and a terminal control door unit 25, and the identity verification unit 21, the remote verification unit 22, The door line connection unit 23 , the electronic lock control door unit 24 and the terminal control door unit 25 are all electrically connected to the main control subsystem 6 .

Wherein, the identity verification unit 21 is used to perform identity verification by matching fingerprint information or avatar information or RFID card information with the pre-stored fingerprint information or pre-stored avatar information or pre-stored RFID card information in the main control subsystem 6; the remote verification unit 22, It is used to send the remote verification result information to the main control subsystem 6 according to the avatar information obtained by the intelligent terminal 5 through the main control subsystem 6; The system 6 controls the first electromagnetic switch to connect the ECU system and the door control system, otherwise the ECU system and the door control system are disconnected; the electronic lock controls the door unit 24, for when the identity verification is successful or the remote verification is successful, through the electronic lock to the door. The ECU system sends a door opening command, and the ECU system controls the door control system to open the door; the terminal controls the door unit 25, for when the identity verification is successful or the remote verification is successful, the intelligent terminal 5 sends the door opening command to the ECU system through the main control subsystem 6 , the ECU system controls the door control system to open the door.

The specific functional principle of alcohol detection subsystem 3 is described as follows:

Specifically, the alcohol detection subsystem 3 includes: a non-contact alcohol sensor 31 , a plurality of contact alcohol sensors 32 , a plurality of pressure sensors 33 , a timing module 34 and an alcohol concentration analysis module 35 .

Among them, the non-contact alcohol sensor 31 is movably arranged in front of the driver's seat through a bracket; a plurality of contact alcohol sensors 32 and a plurality of pressure sensors 33 are arranged in the permeable surface layer on the bracket; the timing module 34 is used for the pressure when the hand holds the bracket The effective detection time when the pressure value of the sensor 33 is greater than the preset pressure value is calculated; the alcohol concentration analysis module 35 is used to analyze the alcohol concentration obtained within the effective detection time less than the preset effective detection time range, and compare it with the driving standard alcohol concentration. value to compare.

The specific functional principle of the engine control subsystem 4 is described as follows:

The engine control subsystem 4 is used to control the second electromagnetic switch to turn the ECU system on when the main control subsystem 6 receives the switch closing command from the smart terminal 5, the door opening command from the ECU system, and the alcohol concentration standard command. Connected to the engine control system;

The specific functional principle of the smart terminal 5 is described as follows:

Specifically, the smart terminal 5 is embedded with a vehicle monitoring APP 51 , and the vehicle monitoring APP 51 includes a monitoring switch module 511 , a time reminder module 512 , a display control module 513 , a remote switch module 514 and a door switch module 515 .

Among them, the monitoring switch module 511 is used to send the monitoring switch on command or the monitoring switch off command to the main control subsystem 6 by touch; the time reminder module 512 is used to issue a reminder signal for checking the status of the monitoring switch; the display control module 513, It is used to open and display image information, avatar information and alcohol concentration information; the remote switch module 514 is used to send a remote verification success command or a remote verification failure command to the main control subsystem 6 by touch; the door switch module 515 is used to touch way to send an ECU door opening command or an ECU door closing command to the main control subsystem 6 .

To sum up, in the vehicle engine start mode, first pass the identity verification or remote command verification, after the verification is successful, the ECU system and the door control system are connected, and then the door is opened through the electronic lock or smart terminal; that is, the introduction of identity verification improves security. , the introduction of instruction verification provides convenience for the car owner to remotely authorize others to drive, and opening the car door through the intelligent terminal provides convenience for the car owner to forget the key, and has strong practicability. Once again, the non-contact alcohol sensor is movably arranged in front of the driver's seat through the bracket, and multiple contact alcohol sensors and multiple pressure sensors are arranged in the permeable surface layer on the bracket. Set the effective detection time of the pressure value to calculate, and analyze the alcohol concentration obtained when the effective detection time is less than the preset effective detection time, and compare it with the standard alcohol concentration value for driving; that is, the gas alcohol sensor and the sweat alcohol sensor are used at the same time. The alcohol content of the driver is collected, and the measurement time must be within the set time range, so as to ensure the accuracy of the alcohol content measurement. Finally, when the door is opened normally and the conditions for the alcohol concentration to meet the standard are met at the same time, the ECU system and the engine control system are turned on, and the engine can be started at this time, that is, before the engine is started, identity verification or remote command verification is required, the door is opened normally, and the alcohol The engine can be turned on only after the concentration detection. The conditions for turning on the engine are complex, which not only ensures the safety of the vehicle, but also effectively avoids the situation of drunk driving, ensures personal safety, and has strong practicability.

In addition, as a preferred embodiment of the present invention, the vehicle-mounted security system of the present invention further includes: an in-vehicle environment monitoring subsystem 7; the in-vehicle environment monitoring subsystem 7 includes: a temperature sensor 71 , an air quality sensor 72 , and a vibration sensor 73 and a smoke sensor 74 , and the temperature sensor 71 , the air quality sensor 72 , the vibration sensor 73 and the smoke sensor 74 are all electrically connected to the main control subsystem 6 .

In addition, as a preferred embodiment of the present invention, the vehicle-mounted security system of the present invention further includes: a vehicle tracking subsystem 8 arranged in the vehicle and under the vehicle body; the vehicle tracking subsystem 8 includes: a first GPS positioning module 81, a first A position calculation module 82 and a position sharing module 83 , the first GPS positioning module 81 , the position calculation module 82 and the position sharing module 83 are all electrically connected to the main control subsystem 6 . Among them, the first GPS positioning module 81 is used to obtain the position information of the vehicle; the first position calculation module 82 is used to determine the location information of the vehicle and the GIS geographic information pre-stored in the memory of the main control subsystem 6 . The geographic information of the vehicle; the location sharing module 83 is used to send the geographic information of the vehicle to the intelligent terminal 5 in real time, and display the dynamic geographic location of the vehicle through the GIS map of the intelligent terminal 5 .

In addition, as a preferred embodiment of the present invention, the vehicle-mounted security system of the present invention further includes: a key tracking subsystem 9 embedded in the card card on the key chain; the key tracking subsystem 9 includes: a second GPS positioning module 91 , the second position calculation module 92, the navigation module 93, the voice communication module 94 and the sound and light alarm module 95, the second GPS positioning module 91, the second position calculation module 92, the navigation module 93, the voice communication module 94 and the sound and light The alarm modules 95 are all electrically connected to the main control subsystem 6 . Wherein, the second GPS positioning module 91 is used to obtain the position information of the key chain; the second position calculation module 92 is used to obtain the position information of the key chain according to the position information of the key chain and the GIS geographic information pre-stored in the memory of the main control subsystem 6 , determine the geographic information of the key chain; the navigation module 93 is used to send the geographic information of the key chain to the intelligent terminal 5, and display and navigate the geographic position of the key chain through the GIS map of the intelligent terminal 5; the voice call module 94 is used to realize Voice communication between the key tracking subsystem 9 and the intelligent terminal 5 ; the sound and light alarm module 95 is used for sound and light alarm according to the alarm command sent by the intelligent terminal 5 .

An implementation method of a vehicle-mounted security system provided by an embodiment of the present invention includes:

Step 1: When the main control subsystem receives the monitoring switch on command from the intelligent terminal, it realizes unmanned monitoring and security; the specific steps include:

Step 11: Set the collection device in the middle of the roof; wherein, the fixed part of the telescopic motor device is set at the bottom of the groove, the top of the telescopic part of the telescopic motor device is provided with a protective cover matching the opening of the groove, and the cover edge of the protective cover is on the top A plurality of acquisition blocks are provided, and each acquisition block is integrated with an infrared sensor, a camera and an LED light, and the acquisition range formed by the plurality of acquisition blocks is a complete vehicle surrounding space.

Step 12: When the infrared sensor senses a person, turn on the camera on the corresponding acquisition block for video acquisition, and extract the spatial image of the person and the vehicle in the video. actual relative distance.

Step 13: When the actual relative distance between the person and the vehicle is less than the preset monitoring distance, display the video image collected by the camera in real time through the intelligent terminal.

Step 14: When the actual relative distance between the person and the vehicle is smaller than the distance between the unmanned monitoring device and the edge of the vehicle at the corresponding position, the video image captured by the camera is displayed in real time through the intelligent terminal, and the telescopic motor is controlled through the main control subsystem. The device retracts into the groove.

Step 2: When the main control subsystem receives the monitoring switch closing command from the intelligent terminal, it realizes the security of vehicle starting; the specific steps include:

Step 21: Perform identity verification by matching fingerprint information or avatar information or RFID card information with pre-stored fingerprint information or pre-stored avatar information or pre-stored RFID card information in the main control subsystem.

Step 22: Send remote verification result information to the main control subsystem according to the avatar information obtained by the intelligent terminal through the main control subsystem.

Step 23: When the identity verification is successful or the remote verification is successful, the main control subsystem controls the first electromagnetic switch to connect the ECU system and the door control system, otherwise disconnect the ECU system and the door control system.

Step 24: When the identity verification is successful or the remote verification is successful, a door opening command is sent to the ECU system through the electronic lock, and the ECU system controls the door control system to open the door.

Step 25: When the identity verification is successful or the remote verification is successful, the intelligent terminal sends a door opening command to the ECU system through the main control subsystem, and the ECU system controls the door control system to open the door.

Step 26: The non-contact alcohol sensor is movably arranged in front of the driver's seat through a bracket, and a plurality of contact alcohol sensors and a plurality of pressure sensors are arranged in the permeable surface layer on the bracket.

Step 27: Calculate the effective detection time when the pressure value of the pressure sensor is greater than the preset pressure value when the hand is holding the bracket, and analyze the alcohol concentration obtained within the range where the effective detection time is less than the preset effective detection time, and compare it with the driving standard alcohol concentration. value to compare.

Step 28: When the main control subsystem receives the door opening command and the alcohol concentration reaching command from the ECU system, it controls the second electromagnetic switch to connect the ECU system and the engine control system.

Step 3: When the main control subsystem receives the monitoring switch on command or the monitoring switch off command from the smart terminal, it starts timing, and when the timing time reaches the preset reminder time, a reminder signal is sent through the smart terminal.

In addition, as a preferred embodiment of the present invention, the implementation method of the vehicle-mounted security system of the present invention further includes:

Step 41: Set up the vehicle tracking subsystem inside and under the vehicle body.

Step 42: Acquire location information of the vehicle through the first GPS positioning module.

Step 43: Determine the geographic information of the vehicle according to the location information of the vehicle and the GIS geographic information pre-stored in the memory of the main control subsystem.

Step 44: Send the geographic information of the vehicle to the intelligent terminal in real time, and display the dynamic geographic location of the vehicle through the GIS map of the intelligent terminal.

In addition, as a preferred embodiment of the present invention, the implementation method of the vehicle-mounted security system of the present invention further includes:

Step 51: Embed a key tracking subsystem in the card on the key chain.

Step 52: Obtain the location information of the key fob through the second GPS positioning module.

Step 53: Determine the geographic information of the key chain according to the location information of the key chain and the GIS geographic information pre-stored in the memory of the main control subsystem.

Step 54: Send the geographic information of the keychain to the intelligent terminal, and display and navigate the geographic location of the keychain through the GIS map of the intelligent terminal.

Step 55: Implement the voice communication between the key tracking subsystem and the intelligent terminal through the voice communication module.

Step 56 : sound and light alarm is performed according to the alarm command sent by the intelligent terminal.

To sum up, in the present invention, when the vehicle owner leaves the vehicle, the unmanned monitoring mode is turned on, and when the unmanned monitoring mode is turned off, the vehicle engine start mode is turned on, that is, the vehicle is fully protected when there is no one or no one, which effectively ensures the safety of the vehicle. vehicle safety. Further, by regularly reminding to check the security mode of the vehicle (unmanned monitoring mode + vehicle engine start mode), the vehicle security system is improved in terms of time.

The above disclosures are only a few specific embodiments of the present invention, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, provided that these modifications and modifications of the present invention belong to the rights of the present invention The present invention is also intended to include these changes and modifications within the scope of the claims and their equivalents.

Claims (10)

1. The utility model provides an on-vehicle security protection system which characterized in that includes: the system comprises an unmanned monitoring device (1), a vehicle door control subsystem (2), an alcohol detection subsystem (3), an engine control subsystem (4), an intelligent terminal (5) and a main control subsystem (6), wherein the unmanned monitoring device (1), the vehicle door control subsystem (2), the alcohol detection subsystem (3), the engine control subsystem (4) and the intelligent terminal (5) are all electrically connected with the main control subsystem (6);

the unmanned monitoring device (1) comprises: the system comprises an acquisition device, a monitoring switch control module (12), a switch reminding module (13), a distance calculating module (14), an image monitoring module (15) and a monitoring protection module (16); the collection system sets up in the middle part of the roof, just collection system includes: the device comprises a telescopic motor device (111), a protective cover (112), a plurality of infrared sensors (113), a plurality of cameras (114) and a plurality of LED lamps (115); the telescopic motor device (111), the infrared sensors (113), the cameras (114), the LED lamps (115), the monitoring switch control module (12), the switch reminding module (13), the distance calculating module (14), the image monitoring module (15) and the monitoring protection module (16) are all electrically connected with the main control subsystem (6);

the fixed part of the telescopic motor device (111) is arranged at the bottom of the groove, the top of the telescopic part of the telescopic motor device (111) is provided with a protective cover (112) matched with the opening of the groove, the cover edge of the protective cover (112) is provided with a plurality of acquisition blocks, each acquisition block is integrated with an infrared sensor (113), a camera (114) and an LED lamp (115), and the acquisition range formed by the acquisition blocks is the complete circumferential space;

the monitoring switch control module (12) is used for stretching the telescopic motor device (111), turning on the infrared sensors (113), waiting for the cameras (114) and turning on the LED lamps (115) when the main control subsystem (6) receives a monitoring switch turn-on command transmitted by the intelligent terminal (5); when the main control subsystem (6) receives a monitoring switch closing command transmitted by the intelligent terminal (5), the telescopic motor device (111) retracts, the infrared sensors (113) are closed, the cameras (114) are closed, and the LED lamps (115) are closed;

the switch reminding module (13) is used for starting timing when the main control subsystem (6) receives a monitoring switch opening command or a monitoring switch closing command transmitted by the intelligent terminal (5), and sending a reminding signal through the intelligent terminal (5) when the timing time reaches a preset reminding time;

the distance calculating module (14) is used for starting the camera (114) on the corresponding acquisition block to acquire video when the infrared sensor (113) senses a person, extracting space images of the person and the vehicle in the video, and determining the actual relative distance between the person and the vehicle by acquiring the scaling of the image and the actual size;

the image monitoring module (15) is used for displaying the video image collected by the camera (114) in real time through the intelligent terminal (5) when the actual relative distance between the person and the vehicle is smaller than a preset monitoring distance;

the monitoring and protecting module (16) is used for displaying a video image acquired by the camera (114) in real time through the intelligent terminal (5) and controlling the telescopic motor device (111) to retract into the groove through the main control subsystem (6) when the actual relative distance between a person and a vehicle is smaller than the distance between the unmanned monitoring device (1) and the edge of the vehicle at the corresponding position;

the vehicle door control subsystem (2) comprises: the system comprises an identity verification unit (21), a remote verification unit (22), a vehicle door line connection unit (23), an electronic lock control vehicle door unit (24) and a terminal control vehicle door unit (25), wherein the identity verification unit (21), the remote verification unit (22), the vehicle door line connection unit (23), the electronic lock control vehicle door unit (24) and the terminal control vehicle door unit (25) are all electrically connected with a main control subsystem (6);

the identity authentication unit (21) is used for performing identity authentication by collecting fingerprint information or head portrait information or RFID card information and matching with prestored fingerprint information or prestored head portrait information or prestored RFID card information in the main control subsystem (6); the remote verification unit (22) is used for sending remote verification result information to the main control subsystem (6) according to the head portrait information acquired by the intelligent terminal (5) through the main control subsystem (6); the vehicle door line connecting unit (23) is used for controlling the first electromagnetic switch to connect the ECU system and the vehicle door control system when the identity authentication is successful or the remote authentication is successful, or disconnecting the ECU system and the vehicle door control system; the electronic lock control vehicle door unit (24) is used for sending a vehicle door opening command to the ECU system through the electronic lock when the identity verification is successful or the remote verification is successful, and the ECU system controls the vehicle door control system to open the vehicle door; the terminal control vehicle door unit (25) is used for sending a vehicle door opening command to the ECU system through the main control subsystem (6) when the identity authentication is successful or the remote authentication is successful, and the ECU system controls the vehicle door control system to open the vehicle door;

the alcohol detection subsystem (3) comprises: a non-contact alcohol sensor (31), a plurality of contact alcohol sensors (32), a plurality of pressure sensors (33), a timing module (34), and an alcohol concentration analysis module (35);

wherein, the non-contact alcohol sensor (31) is movably arranged in front of the driver seat through a bracket; a plurality of contact alcohol sensors (32) and a plurality of pressure sensors (33) are arranged in the water permeable surface layer on the bracket; the timing module (34) is used for calculating effective detection time when the pressure value of the pressure sensor (33) is larger than a preset pressure value when the support is held by hands; the alcohol concentration analysis module (35) is used for analyzing the alcohol concentration obtained within the range that the effective detection time is less than the preset effective detection time and comparing the alcohol concentration with the driving standard alcohol concentration value;

the engine control subsystem (4) is used for controlling the second electromagnetic switch to connect the ECU system with the engine control system when the main control subsystem (6) receives a monitoring switch closing command transmitted by the intelligent terminal (5), a vehicle door opening command transmitted by the ECU system and an alcohol concentration standard reaching command;

intelligent terminal (5) are embedded to be equipped with on-vehicle control APP (51), on-vehicle control APP (51) include: the system comprises a monitoring switch module (511), a time reminding module (512), a display control module (513), a remote switch module (514) and a vehicle door switch module (515);

the monitoring switch module (511) is used for sending a monitoring switch opening command or a monitoring switch closing command to the main control subsystem (6) in a touch mode; the time reminding module (512) is used for sending a reminding signal for checking the state of the monitoring switch; the display control module (513) is used for starting to display image information, head portrait information and alcohol concentration information; the remote switch module (514) is used for sending a remote authentication success command or a remote authentication failure command to the master control subsystem (6) in a touch manner; the vehicle door opening and closing module (515) is used for sending an ECU (electronic control unit) vehicle door opening command or an ECU vehicle door closing command to the main control subsystem (6) in a touch mode.

2. The vehicle-mounted security system of claim 1, further comprising: an in-vehicle environment monitoring subsystem (7); the in-vehicle environment monitoring subsystem (7) includes: temperature sensor (71), air mass sensor (72), vibration sensor (73) and smoke sensor (74), and temperature sensor (71), air mass sensor (72), vibration sensor (73) and smoke sensor (74) all with master control subsystem (6) electricity is connected.

3. The vehicle-mounted security system according to claim 1, wherein the intelligent terminal (5) and the main control subsystem (6) are in wireless communication through one or more of a 3G network, a 4G network, a WIFI network and a GPRS mobile network.

4. The vehicle-mounted security system according to claim 1 or 3, further comprising: a vehicle tracking subsystem (8) disposed within the vehicle and beneath the vehicle body; the vehicle tracking subsystem (8) comprises: the system comprises a first GPS positioning module (81), a first position calculating module (82) and a position sharing module (83), wherein the first GPS positioning module (81), the position calculating module (82) and the position sharing module (83) are all electrically connected with the main control subsystem (6);

wherein the first GPS positioning module (81) is used for acquiring the position information of the vehicle; the first position resolving module (82) is used for determining the geographic information of the vehicle according to the position information of the vehicle and GIS geographic information pre-stored in a memory in the main control subsystem (6); and the position sharing module (83) is used for sending the geographic information of the vehicle to the intelligent terminal (5) in real time and displaying the dynamic geographic position of the vehicle through a GIS map of the intelligent terminal (5).

5. The vehicle-mounted security system according to claim 1 or 3, further comprising: a key tracking subsystem (9) embedded in a card plate on the key chain; the key tracking subsystem (9) comprises: the system comprises a second GPS positioning module (91), a second position resolving module (92), a navigation module (93), a voice call module (94) and an acousto-optic alarm module (95), wherein the second GPS positioning module (91), the second position resolving module (92), the navigation module (93), the voice call module (94) and the acousto-optic alarm module (95) are all electrically connected with the main control subsystem (6);

the second GPS positioning module (91) is used for acquiring the position information of the key chain; the second position resolving module (92) is used for determining the geographic information of the key chain according to the position information of the key chain and GIS geographic information pre-stored in a memory in the main control subsystem (6); the navigation module (93) is used for sending geographic information of the key chain to the intelligent terminal (5), and displaying and navigating the geographic position of the key chain through a GIS map of the intelligent terminal (5); the voice call module (94) is used for realizing voice communication between the key tracking subsystem (9) and the intelligent terminal (5); and the sound-light alarm module (95) is used for carrying out sound-light alarm according to the alarm command sent by the intelligent terminal (5).

6. The vehicle-mounted security system according to claim 1, wherein the unmanned monitoring device (1) further comprises: a reminding time setting module (17); and the reminding time setting module (17) is used for setting the preset reminding time.

7. The vehicle-mounted security system according to claim 1, wherein the main control subsystem (6) adopts an ARM microprocessor.

8. A method for realizing a vehicle-mounted security system is characterized by comprising the following steps:

step 1: when the main control subsystem receives a monitoring switch starting command transmitted by the intelligent terminal, unmanned monitoring security protection is realized; the method comprises the following specific steps:

step 11: arranging the collecting device in the middle of the roof of the car; the fixed part of the telescopic motor device is arranged at the bottom of the groove, the top of the telescopic part of the telescopic motor device is provided with a protective cover matched with the opening of the groove, the cover edge of the protective cover is provided with a plurality of acquisition blocks, each acquisition block is integrated with an infrared sensor, a camera and an LED lamp, and the acquisition range formed by the acquisition blocks is the space around the finished vehicle;

step 12: when the infrared sensor senses a person, a camera on the corresponding acquisition block is started to acquire a video, space images of the person and the vehicle in the video are extracted, and the actual relative distance between the person and the vehicle is determined through the scaling of the acquired images and the actual size;

step 13: when the actual relative distance between the person and the vehicle is smaller than the preset monitoring distance, displaying a video image acquired by the camera in real time through the intelligent terminal;

step 14: when the actual relative distance between the person and the vehicle is smaller than the distance between the unmanned monitoring device and the edge of the vehicle at the corresponding position, the video image collected by the camera is displayed in real time through the intelligent terminal, and the telescopic motor device is controlled to retract into the groove through the main control subsystem;

step 2: when the main control subsystem receives a monitoring switch closing command transmitted by the intelligent terminal, vehicle starting security is achieved; the method comprises the following specific steps:

step 21: identity authentication is carried out by matching the collected fingerprint information or head portrait information or RFID card information with prestored fingerprint information or prestored head portrait information or prestored RFID card information in the main control subsystem;

step 22: sending remote verification result information to the main control subsystem according to the head image information acquired by the intelligent terminal through the main control subsystem;

step 23: when the identity authentication is successful or the remote authentication is successful, the main control subsystem controls the first electromagnetic switch to connect the ECU system with the vehicle door control system, otherwise, the ECU system and the vehicle door control system are disconnected;

step 24: when the identity authentication is successful or the remote authentication is successful, a vehicle door opening command is sent to the ECU system through the electronic lock, and the ECU system controls the vehicle door control system to open the vehicle door;

step 25: when the identity authentication is successful or the remote authentication is successful, the intelligent terminal sends a vehicle door opening command to the ECU system through the main control subsystem, and the ECU system controls the vehicle door control system to open the vehicle door;

step 26: the non-contact alcohol sensor is movably arranged in front of a driver seat through a support, and a plurality of contact alcohol sensors and a plurality of pressure sensors are arranged in a water permeable surface layer on the support;

step 27: calculating effective detection time when the pressure value of the pressure sensor is larger than a preset pressure value when the support is held by a hand, analyzing the alcohol concentration obtained within the range that the effective detection time is smaller than the preset effective detection time, and comparing the alcohol concentration with a driving standard alcohol concentration value;

step 28: when the main control subsystem receives a vehicle door opening command and an alcohol concentration standard reaching command transmitted by the ECU system, the second electromagnetic switch is controlled to connect the ECU system with the engine control system;

and step 3: and when the timing time reaches the preset reminding time, a reminding signal is sent out through the intelligent terminal.

9. The implementation method of the vehicle-mounted security system of claim 8, further comprising: a vehicle tracking step; the method specifically comprises the following steps:

step 41: arranging vehicle tracking subsystems in the vehicle and below the vehicle body;

step 42: acquiring the position information of the vehicle through a first GPS positioning module;

step 43: determining the geographic information of the vehicle according to the position information of the vehicle and GIS geographic information pre-stored in a memory in the main control subsystem;

step 44: and sending the geographic information of the vehicle to the intelligent terminal in real time, and displaying the dynamic geographic position of the vehicle through a GIS map of the intelligent terminal.

10. The implementation method of the vehicle-mounted security system of claim 8, further comprising: tracking a key; the method specifically comprises the following steps:

step 51: a key tracking subsystem is embedded in a card plate on the key chain;

step 52: acquiring the position information of the key chain through a second GPS positioning module;

step 53: determining the geographic information of the key chain according to the position information of the key chain and GIS geographic information pre-stored in a memory in the main control subsystem;

step 54: sending geographic information of the key chain to the intelligent terminal, and displaying and navigating the geographic position of the key chain through a GIS map of the intelligent terminal;

step 55: the voice communication between the key tracking subsystem and the intelligent terminal is realized through the voice communication module;

step 56: and performing sound-light alarm according to the alarm command sent by the intelligent terminal.

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