Vehicle monitoring and early warning system and method based on satellite positioning technology

Abstract

The invention relates to the technical field of vehicle monitoring and early warning, in particular to a vehicle monitoring and early warning system and method based on the satellite positioning technology, and the system comprises a vehicle monitoring and early warning platform, a vehicle database, a positioning monitoring analysis unit, a vehicle tracking unit, a vehicle following evaluation unit, a driving early warning unit, an influence division unit, and an early warning response unit. The position coordinates and the current driving road section information of the target vehicle are analyzed on the premise that docking positioning monitoring is stable, so that a driver is reminded to drive according to a set route in time, driving safety supervision and early warning analysis is conducted on the driving information in an information progressive mode, the driver is reminded to drive safely, and the driving safety is improved. Driving early warning supervision feedback operation is carried out on the driving posture information on the premise of information feedback and positioning monitoring stability, and analysis is carried out in combination with the influence level of the environment where the advancing route is located on driving, so that the driving concentration of a driver is improved in an early warning reminding mode.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle monitoring and early warning, and in particular to a vehicle monitoring and early warning system and method based on satellite positioning technology. Background Art

[0002] With the development of urbanization and the popularization of vehicles, the number of vehicles in cities has increased dramatically in recent years, resulting in increasingly serious road congestion and more frequent traffic accidents. Cars have made outstanding contributions to the development of human society, but they have also brought shocking harm. Therefore, the research on monitoring and early warning systems that can obtain road and vehicle information at any time and promptly remind car drivers to take measures to avoid danger has become an important means to solve the problem of highway traffic safety.

[0003] However, in the prior art, it is impossible to monitor and warn the docking stability performance of the satellite positioning monitoring of the positioning vehicle, thereby reducing the positioning monitoring and warning effect of the target vehicle, and it is impossible to track, verify and analyze the driving route, resulting in an increased risk of target vehicle deviation. At the same time, it is impossible to monitor the driving information of the target vehicle in real time, which is not conducive to timely reminding the target vehicle to drive safely, and it is impossible to supervise and warn the driving risks of the target vehicle, which leads to an increase in the driving risk of the target vehicle, which is not conducive to timely reminding the driver to improve driving concentration;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide a vehicle monitoring and early warning system and method based on satellite positioning technology to solve the above-mentioned technical defects. The present invention preliminarily analyzes from the perspective of the connection stability between the vehicle-mounted monitoring terminal and the Beidou satellite to ensure the accuracy of Beidou satellite positioning, and at the same time helps to improve the positioning and monitoring effect of the target vehicle, and analyzes the position coordinates and the current driving section information of the target vehicle by means of information feedback, so as to judge in depth whether the target vehicle is yawed, so as to remind the driver to drive according to the set route in time, and analyzes the driving safety supervision and early warning of the driving information in an information progressive manner, so as to remind the driver to drive safely, and performs driving early warning supervision feedback operation on the driving posture information under the premise of information feedback and positioning monitoring stability, and analyzes the impact level of the driving on the environment of the forward route, so as to improve the driving concentration of the driver by early warning reminder.

[0006] The object of the present invention can be achieved by the following technical solutions: A vehicle monitoring and early warning system based on satellite positioning technology, comprising a vehicle monitoring and early warning platform, a vehicle database, a positioning monitoring and analysis unit, a vehicle tracking unit, a vehicle following assessment unit, a driving early warning unit, an impact division unit and an early warning response unit;

[0007] The vehicle monitoring and early warning platform is used to retrieve the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite from the vehicle database, and send the docking information to the internal positioning monitoring and analysis unit of the on-board monitoring terminal;

[0008] After receiving the docking information, the positioning monitoring and analysis unit immediately performs vehicle positioning monitoring stability assessment and analysis on the docking information, and sends a stability signal or operation and maintenance management signal to the early warning response unit;

[0009] The vehicle tracking unit is used to respond to the stability signal, collect the position coordinates of the target vehicle and the current driving section information, and perform driving tracking deviation supervision feedback analysis at the same time, and perform discrimination processing on the obtained real-time deviation coefficient to obtain a safety signal or a warning deviation signal;

[0010] The vehicle following assessment unit is used to respond to safety signals and collect driving information of the target vehicle. At the same time, it performs driving safety supervision and early warning analysis on the driving information to obtain warning signals or feedback instructions;

[0011] The impact division unit is used to respond to feedback instructions, collect environmental interference information of the target vehicle, conduct driving interference supervision evaluation and analysis on the environmental interference information, and obtain the driving interference level JD;

[0012] The driving warning unit is used to respond to feedback instructions and collect the driving posture information of the target vehicle. At the same time, it performs driving warning supervision feedback operations on the driving posture information, compares and analyzes the obtained driving warning evaluation coefficient R, and obtains a driving warning signal.

[0013] Preferably, the vehicle positioning monitoring stability evaluation and analysis process of the positioning monitoring and analysis unit is as follows:

[0014] Set a monitoring period to obtain the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite during the monitoring period. The docking information includes a connection response value and a usage evaluation value. Compare and analyze the connection response value and the usage evaluation value with the preset connection response value and usage evaluation value thresholds entered and stored internally to generate a stable signal or an operation and maintenance management signal.

[0015] Preferably, the connection response value represents the portion of the connection time between the vehicle-mounted monitoring terminal and the Beidou satellite that exceeds a preset connection time threshold; the usage evaluation value represents the proportion of the time corresponding to the positioning loss in the usage time between the vehicle-mounted monitoring terminal and the Beidou satellite.

[0016] Preferably, the driving tracking deviation supervision feedback analysis process of the vehicle tracking unit is as follows:

[0017] Based on satellite positioning technology, the position coordinates of the target vehicle at multiple times during the monitoring period and the current driving section information are obtained, and the position coordinate change curve of the target vehicle is drawn in the order of position coordinate acquisition. Based on the position coordinate change curve and the current driving section information, the forward direction and forward route of the target vehicle are obtained;

[0018] The prescribed driving route of the target vehicle during the monitoring period is obtained, the overlap between the forward route and the prescribed driving route is set as the real-time deviation coefficient, and the real-time deviation coefficient is judged and processed to generate a safety signal or a warning deviation signal.

[0019] Preferably, the driving safety supervision warning analysis process of the vehicle following assessment unit is as follows:

[0020] The driving information of the target vehicle during the monitoring period is obtained, and the driving information includes the driving speed and the following distance. At the same time, the speed limit value corresponding to the current forward route of the target vehicle is obtained based on the satellite positioning technology, and the driving speed is compared and analyzed with the speed limit value. If the driving speed is less than or equal to the preset driving speed threshold, the driving speed of the target vehicle is compared and analyzed with the preset driving speed interval, and the safe following distance corresponding to the driving speed in the preset driving speed interval is obtained. The following distance is compared and analyzed with the safe following distance. If the following distance is less than or equal to the preset safe following distance, an alarm signal is generated, and if the following distance is greater than the preset safe following distance, a feedback instruction is generated.

[0021] Preferably, the driving interference supervision evaluation and analysis process of the impact division unit is as follows:

[0022] Based on the forward direction of the target vehicle, the environmental interference information corresponding to the current forward route of the target vehicle is obtained, the environmental interference information including the light interference value and the environmental impact value, the light interference value and the environmental impact value are compared and analyzed with the preset light interference value threshold and the preset environmental impact value threshold, the number of light interference values ​​and environmental impact values ​​greater than or equal to the corresponding preset light interference value threshold and the preset environmental impact value threshold is obtained, and it is set as the driving impact depth, and the driving impact depth is discriminated and processed, and the obtained primary impact, secondary impact and tertiary impact are set as the driving interference level JD, JD=1, 2, 3.

[0023] Preferably, the light interference value represents the sum of the time corresponding to the average rearview reflection brightness exceeding the preset rearview reflection brightness threshold and the time corresponding to the average forward illumination light brightness exceeding the preset threshold; the environmental impact value represents the number of corresponding values ​​of environmental impact parameters exceeding the preset threshold, and the environmental impact parameters include visible distance and lateral wind speed average.

[0024] Preferably, the driving warning supervision feedback operation process of the driving warning unit is as follows:

[0025] The driving posture information of the target vehicle during the monitoring period is obtained, including the line-crossing frequency and the maximum swing amplitude, and the number of times the corresponding value of the driving posture information exceeds the preset threshold is obtained, and it is set as the posture risk value; the driving information of the driver of the target vehicle during the monitoring period is obtained, including the driving time and the blinking frequency, and the number of times the corresponding value of the driving information exceeds the preset threshold is obtained, and it is set as the driving fatigue index;

[0026] The driving warning evaluation coefficient R is obtained according to the formula, and the driving warning evaluation coefficient R is compared and analyzed with the preset driving warning evaluation coefficient threshold value entered and stored internally to generate a driving warning signal.

[0027] The beneficial effects of the present invention are as follows:

[0028] (1) The present invention preliminarily analyzes the connection stability between the vehicle-mounted monitoring terminal and the Beidou satellite to ensure the accuracy of Beidou satellite positioning, and at the same time helps to improve the positioning monitoring effect of the target vehicle. The position coordinates and current driving section information of the target vehicle are analyzed by information feedback to deeply judge whether the target vehicle is yawed, so as to timely remind the driver to drive according to the set route, and at the same time help to reduce the driver's yaw risk;

[0029] (2) The present invention conducts driving safety supervision and early warning analysis on driving information in an information progressive manner, so as to remind the driver to drive safely, increase the following distance of the target vehicle, so as to increase the braking reaction time, so as to reduce the risk of vehicle accidents, and conduct driving early warning supervision feedback operation on driving posture information under the premise of stable information feedback and positioning monitoring, and analyze the impact level of driving in combination with the environment of the forward route, which helps to improve the accuracy of the analysis results, so as to enhance the safety awareness of the driver, and at the same time improve the driver's driving concentration through early warning reminders, thereby helping to improve the driving safety of the target vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings;

[0031] Figure 1 It is a flowchart of the system of the present invention;

[0032] Figure 2 It is a reference analysis diagram of the method of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1 to Figure 2 As shown, the present invention is a vehicle monitoring and early warning system based on satellite positioning technology, including a vehicle monitoring and early warning platform, a vehicle database, a positioning monitoring and analysis unit, a vehicle tracking unit, a vehicle following assessment unit, a driving warning unit, an impact division unit and an early warning response unit, the vehicle database is connected to the vehicle monitoring and early warning platform in a one-way communication, the vehicle monitoring and early warning platform is connected to the positioning monitoring and analysis unit in a one-way communication, the positioning monitoring and analysis unit is connected to the vehicle tracking unit and the early warning response unit in a one-way communication, the vehicle tracking unit is connected to the vehicle following assessment unit in a one-way communication, the vehicle following assessment unit is connected to the driving warning unit, the impact division unit and the early warning response unit in a one-way communication, the early warning response unit is connected to the driving warning unit in a one-way communication, and the driving warning unit is connected to the early warning response unit in a one-way communication;

[0036] The vehicle monitoring and early warning platform is used to retrieve the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite from the vehicle database, and send the docking information to the internal positioning monitoring and analysis unit of the on-board monitoring terminal. After receiving the docking information, the positioning monitoring and analysis unit immediately performs vehicle positioning monitoring stability evaluation and analysis on the docking information to determine whether the connection between the on-board monitoring terminal and the Beidou satellite is stable, so as to ensure the accuracy of Beidou satellite positioning. The specific vehicle positioning monitoring stability evaluation and analysis process is as follows:

[0037] Set the monitoring period and obtain the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite during the monitoring period. The docking information includes the connection response value and the use evaluation value. Compare and analyze the connection response value and the use evaluation value with the preset connection response value and the use evaluation value thresholds stored in the internal storage:

[0038] If the connection response value is less than a preset connection response value threshold, and the usage evaluation value is less than a preset usage evaluation value threshold, a stable signal is generated;

[0039] If the connection response value is greater than or equal to the preset connection response value threshold, or the usage evaluation value is greater than or equal to the preset usage evaluation value threshold, an operation and maintenance management signal is generated, and a stable signal or an operation and maintenance management signal is sent to the early warning response unit. After receiving the stable signal or the operation and maintenance management signal, the early warning response unit immediately performs a preset early warning operation corresponding to the stable signal or the operation and maintenance management signal, so as to improve the connection stability between the on-board monitoring terminal of the target vehicle and the Beidou satellite, thereby helping to improve the positioning monitoring and early warning effect of the target vehicle;

[0040] In the embodiment of the present invention, the connection response value indicates the portion of the connection time between the vehicle-mounted monitoring terminal and the Beidou satellite that exceeds the preset connection time threshold. It should be noted that the larger the value of the connection response value, the greater the risk of connection abnormality.

[0041] In the embodiment of the present invention, the usage evaluation value represents the proportion of the usage time of the vehicle-mounted monitoring terminal and the Beidou satellite during which the positioning loss occurs. It should be noted that the larger the value of the usage evaluation value, the greater the risk of abnormal connection stability.

[0042] When a stable signal is generated, the vehicle tracking unit is used to respond to the stable signal and collect the position coordinates and current driving section information of the target vehicle, and perform driving tracking deviation supervision feedback analysis to determine whether the target vehicle is yawed. The specific driving tracking deviation supervision feedback analysis process is as follows:

[0043] Based on satellite positioning technology, the position coordinates of the target vehicle at multiple times during the monitoring period and the current driving section information are obtained, and the position coordinate change curve of the target vehicle is drawn in the order of position coordinate acquisition. Based on the position coordinate change curve and the current driving section information, the forward direction and forward route of the target vehicle are obtained;

[0044] In the embodiment of the present invention, the current driving section information includes the road name, the fork road name, etc.;

[0045] The specified driving route of the target vehicle within the monitoring period is obtained, the overlap between the forward route and the specified driving route is set as the real-time deviation coefficient, and the real-time deviation coefficient is judged:

[0046] If the real-time deviation coefficient is equal to the preset real-time deviation coefficient threshold, a safety signal is generated;

[0047] If the real-time deviation coefficient is not equal to the preset real-time deviation coefficient threshold, a warning deviation signal is generated, and the safety signal or the warning deviation signal is sent to the warning response unit. After receiving the safety signal or the warning deviation signal, the warning response unit immediately performs the preset warning operation corresponding to the safety signal or the warning deviation signal, so as to promptly remind the driver to drive according to the set route, and at the same time help reduce the driver's deviation risk.

[0048] Embodiment 2:

[0049] When a safety signal is generated, the following vehicle assessment unit is used to respond to the safety signal and collect the driving information of the target vehicle. At the same time, it performs driving safety supervision and early warning analysis on the driving information to remind the driver to drive safely and increase the following distance of the target vehicle to increase the braking reaction time and reduce the risk of vehicle accidents. The specific driving safety supervision and early warning analysis process is as follows:

[0050] Acquire the driving information of the target vehicle during the monitoring period, the driving information includes the driving speed and the following distance, and at the same time, obtain the speed limit value corresponding to the current forward route of the target vehicle based on the satellite positioning technology, and compare and analyze the driving speed with the speed limit value. If the driving speed is less than or equal to the preset driving speed threshold, then compare and analyze the driving speed of the target vehicle with the preset driving speed interval, obtain the safe following distance corresponding to the driving speed in the preset driving speed interval, compare and analyze the following distance with the safe following distance, and generate an alarm signal if the following distance is less than or equal to the preset safe following distance, and generate a feedback instruction if the following distance is greater than the preset safe following distance, and send the alarm signal to the early warning response unit. After receiving the alarm signal, the early warning response unit immediately performs the preset early warning operation corresponding to the alarm signal, so as to remind the driver to drive safely and increase the following distance of the target vehicle, so as to increase the braking reaction time, so as to reduce the risk of vehicle accidents;

[0051] When a feedback instruction is generated, the driving warning unit is used to respond to the feedback instruction and collect the driving posture information of the target vehicle, and perform driving warning supervision feedback operation on the driving posture information, so as to enhance the driving safety awareness of the driver, and improve the driving concentration of the driver through warning reminders, thereby helping to improve the driving safety of the target vehicle. The specific driving warning supervision feedback operation process is as follows:

[0052] The driving posture information of the target vehicle during the monitoring period is obtained, and the driving posture information includes the line-crossing frequency, the maximum swing amplitude, etc. The number of times the corresponding value of the driving posture information exceeds the preset threshold is obtained, and it is set as the posture risk value. It should be noted that the larger the value of the posture risk value, the greater the driving abnormality risk of the target vehicle;

[0053] The driving information of the target vehicle driver during the monitoring period is obtained, including driving time, blinking frequency, etc. The number of times the corresponding value of the driving information exceeds the preset threshold is obtained, and the value is set as the driving fatigue index. It should be noted that the larger the value of the driving fatigue index, the greater the risk of abnormal driving of the target vehicle;

[0054] According to the formula The driving warning evaluation coefficient is obtained, where ZF represents the posture risk value, JP represents the driving fatigue index, JD represents the current driving interference level JD of the target vehicle, a1, a2 and a3 are respectively the preset error correction factors of the posture risk value, the driving fatigue index and the current driving interference level JD of the target vehicle, a4 is the preset fault tolerance factor coefficient, a1, a2, a3 and a4 are all greater than zero, R is the driving warning evaluation coefficient, and the driving warning evaluation coefficient R is compared and analyzed with the preset driving warning evaluation coefficient threshold value stored in the internal input:

[0055] If the driving warning evaluation coefficient R is less than the preset driving warning evaluation coefficient threshold, no signal is generated;

[0056] If the driving warning evaluation coefficient R is greater than or equal to the preset driving warning evaluation coefficient threshold, a driving warning signal is generated and sent to the warning response unit. After receiving the driving warning signal, the warning response unit immediately performs a preset warning operation corresponding to the driving warning signal, so as to enhance the driving safety awareness of the driver and improve the driving concentration of the driver through warning reminders, thereby helping to improve the driving safety of the target vehicle;

[0057] When a feedback instruction is generated, the impact division unit is used to respond to the feedback instruction and collect the environmental interference information of the target vehicle, and perform driving interference supervision evaluation and analysis on the environmental interference information to understand the impact level of the environment of the forward route on driving. The specific driving interference supervision evaluation and analysis process is as follows:

[0058] Based on the forward direction of the target vehicle, the environmental interference information corresponding to the current forward route of the target vehicle is obtained, and the environmental interference information includes a light interference value and an environmental impact value. The light interference value and the environmental impact value are compared and analyzed with a preset light interference value threshold and a preset environmental impact value threshold, and the number of light interference values ​​and environmental impact values ​​greater than or equal to the corresponding preset light interference value threshold and preset environmental impact value threshold is obtained, and it is set as the driving impact depth, and the driving impact depth is judged:

[0059] If the driving impact depth = 0, it is judged as a first-level impact;

[0060] If the driving impact depth = 1, it is judged as a secondary impact;

[0061] If the driving interference depth = 2, it is judged as a third-level influence, wherein the influence risks corresponding to the first-level influence, the second-level influence and the third-level influence increase in sequence, and the first-level influence, the second-level influence and the third-level influence are set as the driving interference level JD, JD = 1, 2, 3, when the driving interference level JD = 1, it means the first-level influence, the driving interference level JD = 2, it means the second-level influence, and the driving interference level JD = 3, it means the third-level influence;

[0062] In the embodiment of the present invention, the light interference value represents the sum of the time corresponding to the mean value of the rear-view reflection brightness exceeding the preset rear-view reflection brightness mean threshold and the time corresponding to the mean value of the front-view illumination light brightness exceeding the preset threshold. It should be noted that the larger the value of the light interference value, the greater the risk of impact on driving.

[0063] In the embodiment of the present invention, the environmental impact value represents the number of values ​​corresponding to environmental impact parameters that exceed a preset threshold value. The environmental impact parameters include visible distance, average lateral wind speed, etc. It should be noted that the environmental impact value is a parameter that reflects the impact of the environment on driving risks.

[0064] Embodiment three:

[0065] The vehicle monitoring and early warning method based on satellite positioning technology includes the following steps:

[0066] Step 1: Carry out a stable evaluation and analysis of the vehicle positioning monitoring stability of the connection between the vehicle-mounted monitoring terminal and the Beidou satellite, and perform a judgment and processing on the obtained docking information. If a stable signal is obtained, proceed to step 2. If an operation and maintenance management signal is obtained, feedback output is performed;

[0067] Step 2: Based on the information feedback driving tracking deviation supervision feedback analysis, the obtained real-time deviation coefficient is judged and processed. If a safety signal is obtained, it goes to step 3. If a warning deviation signal is obtained, it is fed back and output;

[0068] Step 3: Perform driving safety supervision and early warning analysis on driving information in an information progressive manner to understand the score between the following distance and the safe following distance. If a warning signal is obtained, feedback output is given; if a feedback instruction is obtained, proceed to step 4 and step 5;

[0069] Step 4: Collect the environmental interference information of the target vehicle and conduct driving interference supervision assessment and analysis, discriminate the driving influence depth obtained, and substitute the obtained driving interference level JD into step 4;

[0070] Step 5: Collect the driving posture information of the target vehicle and perform driving warning supervision feedback operation, compare and analyze the obtained driving warning evaluation coefficient R, and if a driving warning signal is obtained, feedback output;

[0071] In summary, the present invention is initially analyzed from the perspective of the connection stability between the vehicle-mounted monitoring terminal and the Beidou satellite to ensure the accuracy of Beidou satellite positioning, and at the same time help to improve the positioning monitoring effect of the target vehicle, and analyze the position coordinates and current driving section information of the target vehicle by means of information feedback, so as to deeply judge whether the target vehicle is yawed, so as to timely remind the driver to drive according to the set route, and at the same time help to reduce the driver's yaw risk, and perform driving safety supervision and early warning analysis on the driving information in an information progressive manner, so as to remind the driver to drive safely, increase the following distance of the target vehicle, so as to increase the braking reaction time, so as to reduce the risk of vehicle accidents, and perform driving warning supervision feedback operation on the driving posture information under the premise of information feedback and positioning monitoring stability, and analyze the impact level of the driving environment in the forward route, which helps to improve the accuracy of the analysis result, so as to enhance the safety awareness of the driver, and at the same time improve the driving concentration of the driver by means of early warning reminders, thereby helping to improve the driving safety of the target vehicle.

[0072] The preset error correction factor is used to correct the deviation of various parameters in the process of formula calculation, so as to make the calculation result more accurate;

[0073] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0074] The above formulas are obtained by collecting a large amount of data for software simulation and selecting a formula that is close to the actual value. The coefficients in the formula are set by technical personnel in this field according to actual conditions. The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited to this. Any technical personnel familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, make equivalent replacement or change, which should be covered within the protection scope of the present invention.

Claims

1. The vehicle monitoring and early warning system based on satellite positioning technology is characterized by: It includes vehicle monitoring and early warning platform, vehicle database, positioning monitoring and analysis unit, vehicle tracking unit, vehicle following assessment unit, driving early warning unit, impact classification unit and early warning response unit; The vehicle monitoring and early warning platform is used to retrieve the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite from the vehicle database, and send the docking information to the internal positioning monitoring and analysis unit of the on-board monitoring terminal; After receiving the docking information, the positioning monitoring and analysis unit immediately performs vehicle positioning monitoring stability assessment and analysis on the docking information, and sends a stability signal or operation and maintenance management signal to the early warning response unit; The vehicle tracking unit is used to respond to the stability signal, collect the position coordinates of the target vehicle and the current driving section information, and perform driving tracking deviation supervision feedback analysis at the same time, and perform discrimination processing on the obtained real-time deviation coefficient to obtain a safety signal or a warning deviation signal; The vehicle following assessment unit is used to respond to safety signals and collect driving information of the target vehicle. At the same time, it performs driving safety supervision and early warning analysis on the driving information to obtain warning signals or feedback instructions; The impact division unit is used to respond to feedback instructions, collect environmental interference information of the target vehicle, conduct driving interference supervision evaluation and analysis on the environmental interference information, and obtain the driving interference level JD; The driving warning unit is used to respond to feedback instructions and collect the driving posture information of the target vehicle. At the same time, it performs driving warning supervision feedback operations on the driving posture information, compares and analyzes the obtained driving warning evaluation coefficient R, and obtains a driving warning signal.

2. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 1 is characterized in that: The vehicle positioning monitoring stability evaluation and analysis process of the positioning monitoring and analysis unit is as follows: Set a monitoring period to obtain the docking information between the on-board monitoring terminal of the target vehicle and the Beidou satellite during the monitoring period. The docking information includes a connection response value and a usage evaluation value. Compare and analyze the connection response value and the usage evaluation value with the preset connection response value and usage evaluation value thresholds entered and stored internally to generate a stable signal or an operation and maintenance management signal.

3. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 2 is characterized in that: The connection response value represents the portion of the connection time between the vehicle-mounted monitoring terminal and the Beidou satellite that exceeds the preset connection time threshold; the usage evaluation value represents the proportion of the time corresponding to the positioning loss in the usage time between the vehicle-mounted monitoring terminal and the Beidou satellite.

4. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 3 is characterized in that: The driving tracking deviation supervision feedback analysis process of the vehicle tracking unit is as follows: Based on satellite positioning technology, the position coordinates of the target vehicle at multiple times during the monitoring period and the current driving section information are obtained, and the position coordinate change curve of the target vehicle is drawn in the order of position coordinate acquisition. Based on the position coordinate change curve and the current driving section information, the forward direction and forward route of the target vehicle are obtained; The prescribed driving route of the target vehicle during the monitoring period is obtained, the overlap between the forward route and the prescribed driving route is set as the real-time deviation coefficient, and the real-time deviation coefficient is judged and processed to generate a safety signal or a warning deviation signal.

5. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 4 is characterized in that: The driving safety supervision warning analysis process of the following vehicle assessment unit is as follows: The driving information of the target vehicle during the monitoring period is obtained, and the driving information includes the driving speed and the following distance. At the same time, the speed limit value corresponding to the current forward route of the target vehicle is obtained based on the satellite positioning technology, and the driving speed is compared and analyzed with the speed limit value. If the driving speed is less than or equal to the preset driving speed threshold, the driving speed of the target vehicle is compared and analyzed with the preset driving speed interval, and the safe following distance corresponding to the driving speed in the preset driving speed interval is obtained. The following distance is compared and analyzed with the safe following distance. If the following distance is less than or equal to the preset safe following distance, an alarm signal is generated, and if the following distance is greater than the preset safe following distance, a feedback instruction is generated.

6. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 5 is characterized in that: The driving interference supervision evaluation and analysis process of the impact division unit is as follows: Based on the forward direction of the target vehicle, the environmental interference information corresponding to the current forward route of the target vehicle is obtained, the environmental interference information including the light interference value and the environmental impact value, the light interference value and the environmental impact value are compared and analyzed with the preset light interference value threshold and the preset environmental impact value threshold, the number of light interference values ​​and environmental impact values ​​greater than or equal to the corresponding preset light interference value threshold and the preset environmental impact value threshold is obtained, and it is set as the driving impact depth, and the driving impact depth is discriminated and processed, and the obtained primary impact, secondary impact and tertiary impact are set as the driving interference level JD, JD=1, 2, 3.

7. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 6 is characterized in that: The light interference value represents the sum of the duration corresponding to the average rearview reflection brightness exceeding the preset rearview reflection brightness threshold and the duration corresponding to the average forward illumination light brightness exceeding the preset threshold; the environmental impact value represents the number of corresponding values ​​of environmental impact parameters exceeding the preset threshold, and the environmental impact parameters include visible distance and lateral wind speed average.

8. The vehicle monitoring and early warning system based on satellite positioning technology according to claim 7 is characterized in that: The driving warning supervision feedback operation process of the driving warning unit is as follows: The driving posture information of the target vehicle during the monitoring period is obtained, and the driving posture information includes the line-crossing frequency and the maximum swing amplitude. The number of times the corresponding value of the driving posture information exceeds the preset threshold is obtained, and it is set as the posture risk value; Acquire the driving information of the target vehicle driver during the monitoring period, the driving information including driving time and blinking frequency, obtain the number of times the corresponding value of the driving information exceeds the preset threshold, and set it as the driving fatigue index; The driving warning evaluation coefficient R is obtained according to the formula, and the driving warning evaluation coefficient R is compared and analyzed with the preset driving warning evaluation coefficient threshold value entered and stored internally to generate a driving warning signal.

9. A vehicle monitoring and early warning method based on satellite positioning technology, the method being applied to the vehicle monitoring and early warning system based on satellite positioning technology as claimed in claim 8, characterized in that: The following steps are involved: Step 1: Carry out a stable evaluation and analysis of the vehicle positioning monitoring stability of the connection between the vehicle-mounted monitoring terminal and the Beidou satellite, and perform a judgment and processing on the obtained docking information. If a stable signal is obtained, proceed to step 2. If an operation and maintenance management signal is obtained, feedback output is performed; Step 2: Based on the information feedback driving tracking deviation supervision feedback analysis, the obtained real-time deviation coefficient is judged and processed. If a safety signal is obtained, it goes to step 3. If a warning deviation signal is obtained, it is fed back and output; Step 3: Perform driving safety supervision and early warning analysis on driving information in an information progressive manner to understand the score between the following distance and the safe following distance. If a warning signal is obtained, feedback output is given; if a feedback instruction is obtained, proceed to step 4 and step 5; Step 4: Collect the environmental interference information of the target vehicle and conduct driving interference supervision assessment and analysis, discriminate the driving influence depth obtained, and substitute the obtained driving interference level JD into step 4; Step 5: Collect the driving posture information of the target vehicle and perform driving warning supervision feedback operation, compare and analyze the obtained driving warning evaluation coefficient R, and if a driving warning signal is obtained, feedback output is performed.

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