CN112428957A - STM 32-based GPS _ GSM automobile anti-theft alarm system - Google Patents
STM 32-based GPS _ GSM automobile anti-theft alarm system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
- B60R25/042—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor operating on the fuel supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/104—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device characterised by the type of theft warning signal, e.g. visual or audible signals with special characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/305—Detection related to theft or to other events relevant to anti-theft systems using a camera
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/33—Detection related to theft or to other events relevant to anti-theft systems of global position, e.g. by providing GPS coordinates
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- Engineering & Computer Science (AREA)
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- Radar, Positioning & Navigation (AREA)
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- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a GPS _ GSM automobile anti-theft alarm system based on STM32, which comprises an STM32 module, a GPS module, a GSM module, a user mobile phone module, an oil circuit switch module, a sound alarm module, a camera module and a vibration sensor module; according to the invention, through a GSM network constructed on a mobile or a communicated network and a GPS signal covered on the whole world, based on the vibration signal of the automobile, the judgment of the position and the abnormal detection of the camera module, the alarm of stealing and robbing of property in the automobile and the alarm of stealing the automobile can be realized, remote video and position map monitoring can be realized through a mobile phone terminal APP, and the sound alarm and an oil circuit switch can also be remotely controlled, so that the multifunctional anti-theft alarm of the automobile is realized, and the technological content and the anti-theft effect of the automobile anti-theft alarm system are greatly improved.
Description
Technical Field
The invention relates to the technical field of automobile theft prevention, in particular to a method for preventing automobiles from being stolen by utilizing a GPS technology and a GSM technology.
Background
Automobiles are the main vehicles for humans and are also the hallmarks of modern civilization. The automobile sales volume reaches 5000 thousands of automobiles every year all over the world, and the keeping volume is over 4 hundred million automobiles. The more vehicles are used, the more stolen vehicles are, and the theft prevention of the vehicles becomes an important social problem. The anti-theft technology is listed as four major topics for the development of the automobile technology together with safety, environmental protection and energy conservation. The theft of automobiles is also a crime case with a high incidence in China, and the theft of automobiles is a very common crime phenomenon nowadays, and the solution of the problem is urgent, so that the automobile anti-theft device becomes an essential part for ensuring the safety of the automobile.
The automobile anti-theft technology is a system engineering technology which is continuously improved and perfected along with the development of the automobile industry, is compatible with the automobile environment, is closely connected with automobile machinery and automobile electronics, and has a unique technical background. At present, the automobile anti-theft technology develops very fast in China and has fierce market competition. In order to promote the automobile industry to be more intelligent, convenient and safe, the safety system which is simple, reliable and convenient to operate and can send alarm reminding and position tracking to a driver under the condition of finding theft has practical significance.
The existing automobile anti-theft alarm in the current market mainly has the problems of sound alarm or short message alarm, incapability of realizing remote image and position monitoring on a mobile phone user terminal, incapability of remotely controlling the operation of a vehicle, single function and low integration level.
Disclosure of Invention
The invention aims to provide a GPS _ GSM automobile anti-theft alarm system based on STM32, which solves the problems that the traditional automobile anti-theft system cannot realize remote real-time image viewing and position monitoring, cannot remotely control the automobile or has single function and low integration level.
The technical solution for realizing the purpose of the invention is as follows: an STM 32-based GPS _ GSM automobile anti-theft alarm system comprises an STM32 module, a GPS module, a GSM module, a user mobile phone module, an oil circuit switch module, a sound alarm module, a camera module and a vibration sensor module;
the vibration sensor module is arranged at an automobile door and window and used for detecting whether a vehicle is opened or not;
the GPS module is used for acquiring the real-time position of the vehicle and judging whether the vehicle is moved;
the camera module is used for collecting image data in the vehicle and detecting the movement of objects or people in the vehicle;
the oil circuit switch module is used for controlling an oil circuit switch of the automobile;
the user mobile phone module checks images and position information acquired by the camera module and the GPS module by using the mobile phone APP, and can remotely control the sound alarm and the oil circuit switch;
the STM32 module is used for sending an alarm short message to the user mobile phone module through the GSM module, and when the user confirms that the vehicle is stolen, the STM32 module sends a vehicle oil circuit disconnection and a sound alarm signal through the user mobile phone module.
Compared with the prior art, the invention has the following remarkable advantages: according to the invention, based on vibration signals of the automobile, judgment of the position and image abnormity detection of the camera module through a GSM network and Global Positioning System (GPS) signals which are constructed in a mobile or a communication mode, the alarm for stealing and robbing of property in the automobile and the alarm for stealing the automobile can be realized, remote video and position map monitoring can be realized through a mobile phone terminal APP, and the sound alarm and an oil circuit switch can also be remotely controlled, so that the multifunctional anti-theft alarm of the automobile is realized, the technological content and the anti-theft effect of an automobile anti-theft alarm system are greatly improved, the regional limitation is broken, a user can be timely informed to take corresponding protection measures when the automobile is stolen, the stolen vehicle can be timely tracked, and the property safety of the user is powerfully guaranteed.
Drawings
FIG. 1 is a system framework diagram of the present invention.
Fig. 2 is a flow chart of basic configuration of USART serial port communication.
Fig. 3 is a GPS protocol frame command diagram.
FIG. 4 is a schematic diagram of the serial assistant accepting GPS data.
Fig. 5 is a GPS data parsing flowchart.
Fig. 6 is a flow chart of alarm message transmission.
Fig. 7 is a flow chart of system burglar alarm.
Detailed Description
As shown in fig. 1, an STM 32-based GPS _ GSM automobile anti-theft alarm system includes an STM32 module 1, a GPS module 2, a power module 3, a GSM module 4, a user handset module 5, an oil circuit switch module 6, a sound alarm module 7, a camera module 8, and a vibration sensor module 9;
the vibration sensor module 9 is arranged at an automobile door and window and used for detecting whether a vehicle is opened or not;
the GPS module 2 is used for acquiring the real-time position of the vehicle and judging whether the vehicle is moved;
the camera module 8 is used for acquiring image data in the vehicle and detecting the movement of objects or people in the vehicle;
the oil circuit switch module 6 is used for controlling an oil circuit switch of the automobile;
the user mobile phone module 5 checks the images and the position information collected by the camera module 8 and the GPS module 2 by using the mobile phone APP, and can remotely control the sound alarm and the oil circuit switch;
And the power supply module 3 supplies power to the STM32 module 1, the GPS module 2 and the GSM module 4.
The STM32 module 1 sends an alarm short message to the user mobile phone module 5 through the GSM module when the vibration sensor module detects that the vehicle is opened, the GPS module detects that the vehicle moves or the camera module 8 detects that an object or a person in the vehicle moves.
When the vibration sensor module detects that the vehicle is opened and the GPS module detects that the vehicle moves, the STM32 module 1 sends an alarm short message to the user mobile phone module 5 through the GSM module.
The vibration sensor module detects that the vehicle is opened, and the camera module 8 detects the movement of objects or people in the vehicle, then the STM32 module 1 sends an alarm short message to the user mobile phone module 5 through the GSM module.
The GPS module detects that the vehicle moves, and the camera module 8 detects that an object or a person in the vehicle moves, then the STM32 module 1 sends an alarm short message to the user mobile phone module 5 through the GSM module.
The vibration sensor module detects that the vehicle is opened, the GPS module detects that the vehicle moves, and the camera module 8 detects that an object or a person in the vehicle moves, so that the STM32 module 1 sends an alarm short message to the user mobile phone module 5 through the GSM module.
And the sound alarm module 7 alarms through a buzzer.
The oil circuit switch module controls the switch of the automobile oil circuit through a relay.
The STM32 module collects image data for 1 time every 10s, compares the image data with the image data collected last time to obtain the pixel difference value of two images, and judges that the object or person abnormally moves in the vehicle when the pixel difference value exceeds a set threshold value.
The system adopts the STM32 module as a controller, detects whether a vehicle is violently opened or not through a vibration sensor arranged at an automobile door and window, judges whether the vehicle is moved or not through the real-time position of the vehicle obtained through the positioning of the GPS module, and can detect the movement of objects or people in the automobile under the static condition in the automobile through the image abnormity detection function of the camera module. When the STM32 module detects the stolen condition of above-mentioned vehicle, can send the warning SMS through the GSM module earlier and in time remind the user, the user can open and open the camera through mobile terminal APP through GSM network remote control and monitor the interior real-time condition of car, also can look over the real-time position map of vehicle through mobile terminal APP. When the user confirms that the vehicle is stolen, can send vehicle oil circuit disconnection and sound alarm signal through cell-phone terminal APP to in time control and retrieve the vehicle.
According to the invention, based on vibration signals of the automobile, judgment of the position and image abnormity detection of the camera module, the alarm of property theft and robbery in the automobile and the alarm of vehicle theft can be realized through a GSM network constructed on the mobile or the communication and a GPS signal covered on the global, remote video and position map monitoring is realized through a mobile phone terminal APP, and the sound alarm and an oil circuit switch can be remotely controlled, so that the multifunctional and omnibearing anti-theft alarm of the automobile is realized, and the technological content and the anti-theft effect of the automobile anti-theft alarm system are greatly improved.
The technical scheme of the invention is specifically explained below by combining the attached drawings.
Examples
With reference to fig. 1, an STM 32-based GPS _ GSM automobile anti-theft alarm system includes an STM32 module 1, a GPS module 2, a power module 3, a GSM module 4, a user handset module 5, an oil circuit switch module 6, a sound alarm module 7, a camera module 8, and a vibration sensor module 9.
The STM32 module is a processor, and STM32F103ZET6 is selected as a main control chip; the GPS module provides positioning information for the vehicle and adopts a UBLOX NEO-6M GPS module; the GSM module is a bridge for data transmission between the vehicle-mounted anti-theft system and the user mobile phone module, and adopts an SIM800 chip; the power module adopts a 12V lithium ion battery to supply power to the system; the user mobile phone module is mainly used for checking images and position information acquired by the camera module and the GPS module by using the mobile phone APP, and can remotely control sound alarm and oil circuit switch; the oil circuit switch module is mainly used for switching an oil circuit of the automobile through a relay; the sound alarm module alarms through a buzzer; the vibration sensor module is used for judging whether the vehicle window is violently opened or not by detecting the vibration condition of the vehicle door window.
The camera module is used for collecting image data in the vehicle and transmitting the image data to the STM32 module processor, the processor collects the image data for 1 time every 10s and compares the image data with the image data collected last time to obtain the pixel difference value of two images, when a certain threshold value is exceeded, the image collected for two adjacent times can be judged to have great difference, namely the difference of the images caused by the abnormal movement of objects or people in the vehicle can be judged, and therefore the function of detecting the image abnormality of video monitoring is achieved.
In connection with fig. 2, the GPS module and the GSM module and the USART (full duplex universal synchronous/asynchronous serial transceiver) communication procedure of the STM32 module. STM32F103ZET6 has 3 USART serial ports, and in the invention, the GPS module utilizes USART2 serial port, and the GSM module utilizes USART1 to carry out data communication with STM 32. Serial port setting takes USART2 as an example to explain the initialization setting steps of serial port communication: (1) enabling a serial port clock and enabling a GPIO clock; (2) GPIO port mode setting; (3) initializing serial port parameters; (4) turn on interrupt and initialize NVIC (this step is required if it needs to be turned on); (5) enabling a serial port; (6) and writing an interrupt processing function.
The STM32F103 interrupt system provides 10 system exceptions and 60 maskable interrupt sources with 16 interrupt priorities. The interrupt system is composed of a nested interrupt vector controller (NVIC), an external interrupt/event controller (EXTI) and peripheral interrupt control parts. The serial port interrupt firstly needs to configure the priority of the serial port interrupt, the values of the preemption priority and the sub-priority are set, the level of the preemption priority is higher than the response priority, and the smaller the value is, the higher the priority is represented. After the serial port interrupt priority and the serial port initialization are set, the serial port interrupt and the enabled serial port are started.
And setting an interrupt processing function related to the GPS module and the GSM module after the serial port interrupt and the enabled serial port are started.
The GPS data communication protocol is explained in conjunction with fig. 3 and 4. NMEA 0183 is a standard format established by the National Marine Electronics Association (National Marine Electronics Association) for Marine electronic devices. At present, the universal rtcm (radio Technical Commission for Maritime services) standard protocol of the GPS navigation equipment is formed. The NMEA-0183 protocol uses ASCII codes to convey GPS location information, which we refer to as frames. Frame commands are shown in fig. 3, and the frame format is as follows: $ aaccc, ddd, ddd, …, ddd × hh (CR) (LF)
(1) "$": the frame command start bit.
(2) aaccc: the address field, the first two digits are identifiers (aa), and the last three digits are sentence names (ccc).
(3) ddd … ddd: and (4) data.
(4)"*": checksum prefix (which may also be a flag for the end of statement data).
(5) hh: checksum (check sum), checksum of all characters ASCII code between $and ×.
(6) (CR) (LF): frame end, carriage return and linefeed break.
Further, the $ GPRMC instruction, the $ GPRMC (Recommended Minimum Specific GPS/Transit Data, Recommended positioning information), is used at this time, and the basic format of the $ GPRMC statement is as follows: GPRMC, (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), (12) × hh (CR) (LF)
(1) UTC time, hhmmss (time in minutes).
(2) The positioning state, a is valid positioning and V is invalid positioning.
(3) Latitude ddmm. mmmmmmm (degree division).
(4) Latitude hemisphere N (northern hemisphere) or S (southern hemisphere).
(5) Longitude dddmm. mmmmmm (degrees).
(6) Longitudinal hemisphere E (east longitude) or W (west longitude).
(7) Ground speed (000.0-999.9 knots).
(8) The ground heading (000.0-359.9 degrees, with true north as reference).
(9) UTC date, ddmmyy (sun, month).
(10) Declination (000.0-180.0 degree, and 0 is compensated if the leading digit is not enough).
(11) Declination direction E (east) or W (west).
(12) Mode indication (a is autonomous positioning, D is differential, E is estimated, and N is data invalid).
The GPS data received by the serial assistant is shown in fig. 4.
The GPS data acquisition procedure is explained with reference to fig. 5. And carrying out data analysis on the received $ GPRMC instruction data, wherein a data analysis program is placed in a USART2 serial port interrupt service program. The data parsing process flow is shown in fig. 5. In the USART2 serial port interrupt service program, firstly judging whether GPS data is received, after receiving the GPS data, a series of frame commands are processed by a communication protocol NMEA-0183 protocol of the GPS, as shown in figure 4, after finding a $ GPRMC command, placing a latitude and longitude coordinate in a set character string, and taking the change of the last 5 bits of the latitude as a basis for judging whether a vehicle moves or not, namely whether the vehicle is stolen or not.
The short message alarm programming is explained with reference to fig. 6. The AT command is used as an interface standard, so the command and the returned value and format are fixed, the invention adopts the AT + CMGS command to send Chinese and English short messages, adopts the text mode to send, and the process of sending the command is shown in figure 6.
With reference to fig. 7, after the system is started, the STM32 module firstly acquires initial coordinates of a vehicle, detect images of a camera module and data signals of a vibration sensor, cyclically detect vehicle positions, and determine whether the vibration and the image signals are abnormal, when the abnormality is detected, an alarm short message is sent through the GSM module, after a user receives the alarm short message, the mobile phone APP is opened to check vehicle position map information transmitted through the GSM network and image information acquired by the camera, so as to determine whether the vehicle theft information is true, if not, an alarm system triggered by other abnormal conditions is found out, if true, the user can remotely start the sound alarm to deter criminals, and an oil circuit is cut off by using the oil circuit switch module, the criminals are prevented from stealing the vehicle, and meanwhile, the user can find back the stolen vehicle through the real-time position map positioning of the mobile phone APP.
Claims (10)
1. An STM 32-based GPS _ GSM automobile anti-theft alarm system is characterized by comprising an STM32 module (1), a GPS module (2), a GSM module (4), a user mobile phone module (5), an oil circuit switch module (6), a sound alarm module (7), a camera module (8) and a vibration sensor module (9);
the vibration sensor module (9) is arranged at an automobile door and window and used for detecting whether a vehicle is opened or not;
the GPS module (2) is used for acquiring the real-time position of the vehicle and judging whether the vehicle is moved;
the camera module (8) is used for collecting image data in the vehicle and detecting the movement of objects or people in the vehicle;
the oil circuit switch module (6) is used for controlling an oil circuit switch of the automobile;
the user mobile phone module (5) checks images and position information collected by the camera module (8) and the GPS module (2) by using the mobile phone APP, and remotely controls the sound alarm and the oil circuit switch;
the STM32 module (1) is used for sending an alarm short message to the user mobile phone module (5) through the GSM module (4), and when the user confirms that the vehicle is stolen, the vehicle oil circuit disconnection and sound alarm signal are sent through the user mobile phone module (5).
2. The STM 32-based GPS _ GSM automobile anti-theft alarm system according to claim 1, wherein the STM32 module (1) sends an alarm message to the user handset module (5) through the GSM module when the vibration sensor module (9) detects that the vehicle is turned on, the GPS module (2) detects that the vehicle moves, or the camera module (8) detects that an object or a person in the vehicle moves.
3. The STM 32-based GPS _ GSM automobile burglar alarm system according to claim 1, wherein when the vibration sensor module (9) detects that the vehicle is turned on and the GPS module (2) detects that the vehicle is moving, the STM32 module (1) sends an alarm message to the user handset module (5) through the GSM module.
4. The STM 32-based GPS _ GSM automobile burglar alarm system according to claim 1, wherein the vibration sensor module (9) detects that the vehicle is turned on, and the camera module (8) detects the movement of an object or a person in the vehicle, then the STM32 module (1) sends an alarm message to the user handset module (5) through the GSM module.
5. The STM 32-based GPS _ GSM automobile burglar alarm system according to claim 1, wherein the GPS module (2) detects the movement of a vehicle, and the camera module (8) detects the movement of an object or a person in the vehicle, then the STM32 module (1) sends an alarm message to the user handset module (5) through the GSM module.
6. The STM 32-based GPS _ GSM automobile burglar alarm system according to claim 1, wherein the vibration sensor module (9) detects that the vehicle is turned on, the GPS module (2) detects that the vehicle moves, and the camera module (8) detects the movement of an object or a person in the vehicle, then the STM32 module (1) sends an alarm message to the user handset module (5) through the GSM module.
7. The STM 32-based GPS _ GSM automobile burglar alarm system according to claim 1, wherein the sound alarm module (7) gives an alarm through a buzzer.
8. The STM 32-based GPS _ GSM automobile anti-theft alarm system according to claim 1, wherein the STM32 module adopts STM32F103ZET6 as a main control chip; the GPS module provides positioning information for the vehicle and adopts a UBLOX NEO-6M GPS module; the GSM module adopts a SIM800 chip.
9. The STM 32-based GPS _ GSM automobile anti-theft alarm system according to claim 1, wherein the oil circuit switch module controls the switch of the automobile oil circuit through a relay.
10. The STM 32-based GPS _ GSM automobile anti-theft alarm system according to claim 1, wherein the STM32 module collects image data every 10s for 1 time, compares the image data with the image data collected last time to obtain a pixel difference value of two images, and judges that there is abnormal movement of an object or a person in the automobile when the pixel difference value exceeds a set threshold value.
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| CN113112642A (en) * | 2021-05-08 | 2021-07-13 | 深圳市迈鸿车联网服务有限公司 | Car networking platform with high intellectuality |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113112642A (en) * | 2021-05-08 | 2021-07-13 | 深圳市迈鸿车联网服务有限公司 | Car networking platform with high intellectuality |
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