Intelligent risk avoiding system for road traffic accidents

Abstract

The invention provides an intelligent risk avoiding system for road traffic accidents, and belongs to the technical field of intelligent risk avoiding for traffic accidents, the intelligent risk avoiding system comprises a low-orbit Beidou positioning satellite and a plurality of vehicle-mounted real-time vehicle detection systems, the low-orbit Beidou positioning satellite is arranged on an orbit, the low-orbit Beidou positioning satellite is wirelessly connected with the plurality of vehicle-mounted real-time vehicle detection systems, and the plurality of vehicle-mounted real-time vehicle detection systems are wirelessly connected with the low-orbit Beidou positioning satellite. The vehicle-mounted real-time vehicle detection system is used for detecting the running state of each vehicle running on a road in real time. According to the invention, the accident information is broadcasted to the vehicle going to pass the accident point through the low-orbit Beidou positioning satellite once the accident occurs, so that the vehicle can timely know the accident and timely avoid the accident, the road congestion is avoided, and compared with the existing broadcasting after the accident congestion occurs, the time is earlier, the vehicle congestion at the accident point can be avoided, and the traffic safety is improved. And a convenient road foundation is provided for follow-up accident treatment, wounded person treatment and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent risk avoidance for traffic accidents, and in particular to an intelligent risk avoidance system for road traffic accidents. Background Art

[0002] With the support of the government, major automobile companies and universities around the world are conducting research and development work on automobile electronic technology safety systems and accident alarm systems. However, there are still few constructions of accident alarm systems on mobile phone platforms, and there are also few relevant literatures that can be consulted. Active safety improved by using information perception and dynamic identification control technology and methods is the main research content of advanced vehicle control and safety systems (AVCSS). In recent years, major Japanese automobile manufacturers such as Toyota, Nissan, Honda, Mitsubishi and other companies have been committed to the research and development of new safety automobile technologies to realize their proposed "Advanced Safety Vehicle (ASV) Plan" and have made important progress, such as using single-chip microcomputers to control automatic accident alarm systems. According to the German Handelsblatt, from 2010, all new cars in the European Union will be equipped with and promote an automatic accident alarm system. This system is controlled by the airbag device after the car has a car accident to automatically dial the emergency number. After receiving the alarm call, the emergency center will determine the exact location of the accident based on the satellite positioning system pre-installed in the accident vehicle, and then quickly dispatch an emergency team, so as to make the rescue operation faster. Experts predict that the use of this automatic alarm system can shorten the average rescue time by about 50%. Famous automobile manufacturers such as Mercedes-Benz and BMW in European countries such as Germany and France have also studied millimeter-wave radar technology. The radar fine-tuning millimeter-wave radar they use has a frequency band of 76-77GHz. There is also a car anti-collision alarm system jointly developed by Mercedes-Benz and Lawrence Electronics of the United Kingdom, which uses the method of comparing detection distances to prevent traffic accidents. When the actual vehicle distance measured is less than the safe vehicle distance of 150 meters, the system sends out an audible and visual alarm signal. At present, this system has been applied. General Motors and BMW have also developed and applied an OnStar system. The systems of both companies can detect whether the car has had a car accident and determine the location of the accident. The system of BMW uses more advanced sensor technology. Through calculation functions, the car accident can be divided into 1 to 100 levels, and the alarm center implements rescue according to the level of the car accident.

[0003] There is a big gap between the research and development of traffic accident alarm systems in my country and those in developed countries. In recent years, some scientific research institutes, colleges and universities, and companies have conducted research in this area. At present, there are relatively few alarm systems for automobile traffic accidents in the domestic market. Although some products also have the function of emergency rescue, many of them lack certain intelligence and humanization. For example, the YD-R188 car alarm system, which has been used in the market, needs to be pre-installed on the car and set with an emergency rescue button. When encountering an emergency, it is necessary to press this button manually. The system will dial for help according to the two pre-set numbers and send out the pre-recorded voice for help. It cannot automatically alarm when the injured person is unconscious or seriously injured. Moreover, the system cannot intelligently locate the location of the car, and must log in to the operator's website to query. Not long ago, two students from the Affiliated Middle School of Jiaotong University showed off a mobile phone car accident warning and alarm software called "Driver Assistant" at the 5th Shanghai Youth Innovation Summit. The software is based on the Android mobile phone platform. With the help of the linear acceleration sensor built into the mobile phone, the real-time three-dimensional acceleration of the car and the values ​​of each coefficient in the function relationship are obtained. By comparing with the experimental data, the safety status of the car's operation is inferred to realize the car accident alarm. When the car is in an abnormal driving state, the mobile phone will sound an alarm to remind the driver, or send the driving status to the preset contact via SMS to prevent accidents and reduce the accident mortality rate. It is very similar to the car accident alarm system studied in this article. However, the current warning value of the system demonstrated at this summit is not very accurate, and there may be false alarms. Therefore, the software has not yet been listed on the Android market. There is still a lot of market space for the application of Android mobile phone platform in car accident alarm. In short, similar products at home and abroad can not only reduce the mortality rate of traffic accidents, but also reduce the incidence of traffic accidents. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent road accident avoidance system to solve the technical problem that the existing accident avoidance technology only reports the road conditions after causing congestion. If the accident report is not timely, the driver cannot avoid it in time to avoid traffic congestion. At the same time, the driver cannot slow down in time according to the accident information on the highway, which is easy to cause a series of rear-end collisions.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] The invention discloses an intelligent risk avoidance system for road traffic accidents, comprising a low-orbit Beidou positioning satellite and a plurality of on-board real-time vehicle detection systems. The low-orbit Beidou positioning satellite is arranged on an orbit and is wirelessly connected to the plurality of on-board real-time vehicle detection systems. The on-board real-time vehicle detection systems are used to detect the driving state of each vehicle on the road in real time, and then determine whether the vehicle has a fault, rear-end collision, rollover or collision accident. If it is determined that an accident has occurred, the on-board real-time vehicle detection system on the accident vehicle transmits the accident content and the specific position of the accident vehicle to the low-orbit Beidou positioning satellite. After acquiring the position of the accident vehicle, the low-orbit Beidou positioning satellite acquires the road that needs to pass the accident vehicle, and then all vehicles on the road with a fixed distance receive the accident information broadcast by the low-orbit Beidou positioning satellite, and are reminded to detour, so as to avoid traffic jams at the accident location and secondary accidents on the highway.

[0007] Furthermore, the on-board real-time vehicle detection system includes a Beidou positioning module, a gyroscope module, a collision sensor, a 4G wireless communication module, a roof video data acquisition module, a voice road condition notification module, a fault acquisition module and an on-board controller module. The Beidou positioning module, the gyroscope module, the collision sensor, the 4G wireless communication module, the roof video data acquisition module, the voice road condition notification module and the fault acquisition module are all connected to the on-board controller module. The Beidou positioning module is used to communicate with the low-orbit Beidou positioning satellite in real time to transmit the accident information of the vehicle or receive the information of the accident of the external vehicle. The gyroscope module is used to detect whether the vehicle body has rolled over. The collision sensor is used to detect whether the vehicle has rear-ended, been rear-ended or hit. The vehicle controller module analyzes and judges the situation and transmits the detected information to the vehicle controller module. The vehicle controller module transmits the information to be reported to the low-orbit Beidou positioning satellite through the Beidou positioning module. The corresponding information of the low-orbit Beidou positioning satellite is then broadcast to the vehicles traveling in the corresponding area. At the same time, the vehicle controller module reports to the corresponding traffic police department through the 4G wireless communication module. The roof video data acquisition module is used to obtain video data on the road in real time. The voice road condition notification module is used to broadcast accident information on the road where the vehicle is about to travel, reminding the vehicle to avoid and avoid congestion. The fault acquisition module is used to detect in real time whether the vehicle is unable to travel due to a fault or a breakdown, and transmits it to the low-orbit Beidou positioning satellite through the Beidou positioning module.

[0008] Furthermore, the on-board real-time vehicle detection system also includes a visibility identification module, which is connected to the on-board controller module. The visibility identification module is used to identify the visibility data of the front end of the vehicle in real time. When the vehicle enters an area and the visibility is less than a set value, the on-board controller module sends the vehicle's location information and visibility information to the low-orbit Beidou positioning satellite through the Beidou positioning module, and then the low-orbit Beidou positioning satellite broadcasts the visibility information to vehicles near the corresponding area to avoid accidents.

[0009] Furthermore, the on-board real-time vehicle detection system also includes a photosensitive sensor, which is connected to the on-board controller module. The photosensitive sensor is used to detect the brightness data outside the vehicle in real time. When the brightness is lower than a certain level, the voice road condition notification module is used to inform the driver to pay attention to the external environment to avoid accidents.

[0010] Furthermore, when a vehicle on the road has an accident, the low-orbit Beidou positioning satellite searches for information about vehicles passing by the accident site based on the location and time of the accident, and then sends a video data acquisition request to the vehicles in front and behind. After the owner agrees, the video data of the accident is transmitted to the low-orbit Beidou positioning satellite or directly to the traffic police department. When the traffic police department can directly determine the responsibility through the video data, the traffic management department will issue an electronic responsibility determination letter and send it to the corresponding accident vehicle owner for review. The owner can then directly move the accident vehicle or tow it away by a tow truck to avoid traffic congestion.

[0011] Furthermore, when a vehicle on the road has an accident, if there is no vehicle passing by or no camera to capture the accident process, the low-orbit Beidou positioning satellite will send a video shooting request to the vehicle passing the accident point. After the user agrees, the roof video data acquisition module on the vehicle passing the accident point will focus on the video information of the accident scene, and then transmit the collected video information to the traffic police department. The traffic police department will make a preliminary determination of responsibility based on the video data, and then notify the owner to move the vehicle away to avoid traffic congestion.

[0012] Furthermore, when data is collected showing that someone is injured at the scene of the accident, the on-board controller module calls the 120 emergency number through the 4G wireless communication module, and the drivers of vehicles passing by in the same direction send out a temporary distress signal.

[0013] Furthermore, the gyroscope module begins to monitor the acceleration and rollover status of the vehicle in real time. Once abnormal acceleration or rollover is detected, it is determined to be a traffic accident. The system will automatically send a distress message to an external server. At the same time, when the distance to the vehicle in front drops to an unsafe level, the system will remind the driver through voice prompts to ensure that a safe distance is maintained.

[0014] Furthermore, collision sensors are installed around the vehicle to detect in real time whether the vehicle is collided, and then transmit the collision information to the low-orbit Beidou positioning satellite via the Beidou positioning module, and the low-orbit Beidou positioning satellite broadcasts it to the Internet or remote users.

[0015] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0016] (1) The present invention broadcasts accident information to vehicles that are about to pass the accident site via low-orbit Beidou positioning satellites as soon as the accident occurs, so that the vehicles are aware of the accident in time and can avoid it in time to avoid road congestion. Compared with the existing accident reporting after congestion occurs, the time is earlier, which can avoid vehicle congestion at the accident site and provide a convenient road foundation for subsequent accident handling and treatment of the injured.

[0017] (2) At the same time, by calling up the video information shot by other vehicles at the time of the accident or directly requesting the video data shot by vehicles passing the accident scene for the traffic police department to identify the accident, higher efficiency and faster speed can be achieved. The traffic police department only needs to go to the scene to make a preliminary identification. After the identification, the car owner can drive away to avoid traffic congestion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a block diagram of the system principle of the present invention;

[0019] Figure 2 It is a module block diagram of the on-board real-time vehicle detection system of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0021] like Figure 1-2As shown, a road accident intelligent avoidance system includes a low-orbit Beidou positioning satellite and a plurality of on-board real-time vehicle detection systems. The low-orbit Beidou positioning satellite is set on the orbit, and the low-orbit Beidou positioning satellite is wirelessly connected to the plurality of on-board real-time vehicle detection systems. The on-board real-time vehicle detection system is used to detect the driving state of each vehicle on the road in real time, and then determine whether the vehicle has a breakdown, rear-end collision, rollover or collision accident. If it is determined that an accident has occurred, the on-board real-time vehicle detection system on the accident vehicle transmits the accident content and the specific location of the accident vehicle to the low-orbit Beidou positioning satellite. After obtaining the location of the accident vehicle, the low-orbit Beidou positioning satellite obtains the road that needs to pass the accident vehicle, and then all vehicles on the road with a fixed distance receive the accident information broadcast by the low-orbit Beidou positioning satellite, and remind the vehicles to detour, so as to avoid traffic jams at the accident location and secondary accidents on the highway.

[0022] The system uses advanced acceleration sensor technology, intelligent control systems and lane positioning systems to monitor and evaluate the distance and speed between vehicles in real time. In the event of a possible chain collision, the system quickly takes emergency braking measures to prevent or mitigate the consequences of the accident. By studying and applying this device, we can effectively reduce the risk of traffic accidents and protect the lives of drivers and passengers. At the same time, this will also help reduce traffic congestion and reduce economic losses, improve the efficiency of the overall road traffic system, and promote sustainable development.

[0023] Through the Beidou positioning system, we can locate the current vehicle position in real time. In addition, the MCU in the device will continuously collect the gyroscope value. When the attitude data suddenly changes, the system will immediately transmit the vehicle's position information through the V2V network. This positioning information can not only be used by the navigation system of the rear vehicle, but also make full use of the vehicle configuration, GPS device and sensor data in the V2V network to achieve timely warning of the rear vehicle.

[0024] In low visibility conditions such as fog or heavy rain, the driver's reaction time is significantly prolonged, increasing driving risks. In this case, the device will send the vehicle's location information to surrounding vehicles. When it is found that the distance to the vehicle in front is less than the safe distance, the device will issue a prompt to remind the driver to take action. In addition, the system will intelligently adjust the information dissemination range according to the actual visibility conditions to ensure timely safety warnings.

[0025] When the driver wants to park, the system can obtain the exact location of the vehicle through the Beidou positioning system, automatically match whether the current road section is suitable for parking the vehicle, and then feedback this information to the user.

[0026] In the embodiment of the present invention, Figure 2As shown, the on-board real-time vehicle detection system includes a Beidou positioning module, a gyroscope module, a collision sensor, a 4G wireless communication module, a roof video data acquisition module, a voice road condition notification module, a fault acquisition module and an on-board controller module. The Beidou positioning module, the gyroscope module, the collision sensor, the 4G wireless communication module, the roof video data acquisition module, the voice road condition notification module and the fault acquisition module are all connected to the on-board controller module. The Beidou positioning module is used to communicate with the low-orbit Beidou positioning satellite in real time to transmit the accident information of the vehicle or receive the information of the accident of the external vehicle. The gyroscope module is used to detect whether the vehicle body has rolled over. The collision sensor is used to detect whether the vehicle has rear-ended, been rear-ended or hit. The vehicle controller module analyzes and judges the information to be reported and transmits it to the low-orbit Beidou positioning satellite through the Beidou positioning module. The corresponding information of the low-orbit Beidou positioning satellite is then broadcast to the vehicles traveling in the corresponding area. At the same time, the vehicle controller module reports to the corresponding traffic police department through the 4G wireless communication module. The roof video data acquisition module is used to obtain video data on the road in real time. The voice road condition notification module is used to broadcast accident information on the road where the vehicle is about to travel, reminding the vehicle to avoid and avoid congestion. The fault acquisition module is used to detect in real time whether the vehicle is unable to travel due to a fault or breakdown, and transmits it to the low-orbit Beidou positioning satellite through the Beidou positioning module.

[0027] In an embodiment of the present invention, the on-board real-time vehicle detection system also includes a visibility identification module, which is connected to the on-board controller module. The visibility identification module is used to identify the visibility data of the front end of the vehicle in real time. When the vehicle enters an area and the visibility is less than a set value, the on-board controller module sends the vehicle's location information and visibility information to the low-orbit Beidou positioning satellite through the Beidou positioning module, and then the low-orbit Beidou positioning satellite broadcasts the visibility information to vehicles near the corresponding area to avoid accidents.

[0028] In an embodiment of the present invention, the on-board real-time vehicle detection system also includes a photosensitive sensor, which is connected to the on-board controller module. The photosensitive sensor is used to detect the brightness data outside the vehicle in real time. When the brightness is lower than a certain level, the voice road condition notification module is used to inform the driver to pay attention to the external environment to avoid accidents.

[0029] In an embodiment of the present invention, when an accident occurs to vehicles on the road, the low-orbit Beidou positioning satellite searches for information of vehicles passing by the accident site based on the location and time of the accident, and then sends a video data acquisition request to the vehicles in front and behind. After the vehicle owner agrees, the video data of the time of the accident is transmitted to the low-orbit Beidou positioning satellite or directly to the traffic police department. When the traffic police department can directly determine the responsibility through the video data, the traffic management department issues an electronic responsibility determination letter and sends it to the corresponding accident vehicle for the owner to review. The owner then directly moves the accident vehicle or tows it away directly by a tow truck to avoid traffic congestion.

[0030] In an embodiment of the present invention, when an accident occurs to vehicles on the road, if no vehicle passes by or no camera captures video of the accident process when the accident occurs, the low-orbit Beidou positioning satellite sends a video accident point shooting request to the vehicle that has passed the accident point. After the user agrees, the roof video data acquisition module on the vehicle that has passed the accident point is aimed at the video information of the accident scene, and then the collected video information is transmitted to the traffic police department. The traffic police department makes a preliminary determination of responsibility through the video data, and then notifies the owner to move the vehicle away to avoid traffic congestion.

[0031] In the embodiment of the present invention, when it is collected that there are people injured at the accident scene, the vehicle-mounted controller module calls the 120 emergency number through the 4G wireless communication module, and sends a temporary distress signal to the driver of the vehicle passing by in the same direction.

[0032] In the embodiment of the present invention, the gyroscope module starts to monitor the acceleration and rollover status of the vehicle in real time. Once abnormal acceleration or rollover is detected, it is determined to be a traffic accident. The system will automatically send a distress message to an external server. At the same time, when the distance to the vehicle in front drops to an unsafe level, the system will remind the driver through voice prompts to ensure that a safe distance is maintained.

[0033] The on-board real-time vehicle detection system can also achieve other functions. In low visibility conditions such as heavy rain, fog and extreme weather, when the vehicle is too close to the vehicle in front, the system will remind the driver to keep a safe distance through voice prompts. At the same time, the system will also provide lane suggestions to help the driver choose the right lane. In addition, if an emergency such as a car accident or vehicle rollover occurs, the on-board terminal will automatically send a distress message to the server, and use the Beidou positioning system to obtain the exact location of the vehicle and can also judge the extent of the accident by the change time of acceleration. The system can also feedback to the user whether it is suitable to park the vehicle based on the current road conditions. This device adopts a dual power supply mode. According to the judgment of the photosensitive sensor, it uses solar power during the day and switches to battery power at night. This design ensures that the device can operate normally at different time periods.

[0034] In an embodiment of the present invention, collision sensors are installed around the vehicle to detect in real time whether the vehicle is collided, and then transmit the collision information to the low-orbit Beidou positioning satellite via the Beidou positioning module, and the low-orbit Beidou positioning satellite broadcasts it to the Internet or remote users.

[0035] In extreme weather conditions such as heavy rain and fog, the system can remind the driver of the vehicle ahead to prevent accidents. The system will analyze the information obtained, inform the driver through voice, and transmit the information to the collection terminal through the 4G module and GPS module.

[0036] The main control uses STM32c8t6; the main control obtains location information through the Beidou positioning module ATGM336H; the location and other information are uploaded to the server through the 4G module Air724UGLTE; through the MPU-6050 sensor and braking time, we can determine whether a car accident has occurred or whether the vehicle has rolled over. Once an accident occurs, we will send the location of the accident in real time through the Beidou positioning module, and use the serial port screen to display the vehicle acceleration change and tilt angle change at the time of the accident. In addition, we also use OpenMV cameras and GPS to monitor the distance between vehicles. When the vehicle encounters extreme weather, it will be judged and reported. When the distance between the vehicle and the vehicle in front is less than the safe distance, the system will give a voice reminder to ensure driving safety. Finally, the photoresistor is used to judge day and night to select the appropriate power supply method.

[0037] The STM32F103C8T6 is a low-cost, low-power 32-bit ARM Cortex-M3 microcontroller with 64KB flash memory, 20KB SRAM storage, multiple communication interfaces, GPIO pins, timers, analog peripherals, and rich development tool support. It is suitable for a wide range of embedded applications, especially cost-sensitive and battery-powered projects. Its high performance and low power consumption make it a powerful and affordable microcontroller.

[0038] The system uses OpenMV to measure distance and identify weather conditions and send them to the server. OpenMV connects HC-O5 to the serial port of the microcontroller, which communicates with other devices via Bluetooth. The main job of HC-O5 is to add two-way wireless capabilities. Through the TX and RX pins, standard AT commands are supported. After the module starts, other Bluetooth devices can detect it, and the STM32 and OpenMV terminals are each connected to a Bluetooth device. Use a standard password to establish a connection between the two and establish a serial stream connection. Data is transmitted through HC-O5 and automatically converted into a serial stream, which is then read by the STM32. The way STM32 sends data is the opposite of it.

[0039] The gyroscope uses the MPU-6050, a digital sensor module with six-axis measurement, high precision and low power consumption, suitable for a variety of applications such as attitude control, motion detection and navigation. It is used to monitor the linear acceleration of the vehicle, while the three-axis gyroscope is used to measure attitude changes, including rotation and tilt. By fusing these data through sensor fusion algorithms such as Kalman filtering, the system is able to detect sudden acceleration and attitude changes that may indicate a vehicle collision.

[0040] The ATGM336H Beidou module is used to send the real-time location of the car accident to provide rapid rescue. It is compact, has excellent performance, and strong anti-interference ability. Through the Beidou built-in serial port connected to the serial port 1 of the main control, after waiting for the Beidou module to be powered on and initialized, the module's location information can be continuously obtained.

[0041] Photoresistor modules have the key function of detecting changes in ambient light intensity. With high resistance values ​​in low light conditions and low resistance values ​​in high light conditions as their core, they respond quickly to changes in light and are suitable for a variety of applications that require control or monitoring based on light levels. Light sensors can also assist the vehicle's energy management system, using solar power when there is sufficient light to extend battery life.

[0042] The voice module uses SYN6288, a multifunctional audio module and speech synthesis chip with rich and diverse functions, including the ability to convert text to natural speech, support for multiple languages, allow control of the volume, pitch and speed of the audio output, and play the synthesized speech through built-in or external speakers. With features such as storage capacity management, serial communication interface, custom voice clips and low-power design, the voice module can provide the driver with information about the distance between vehicles, helping the driver to better understand the current situation and take appropriate actions, such as emergency braking or avoiding obstacles.

[0043] The features of the serial port screen include support for multiple display sizes and types, creation of user interfaces, programmability, multi-language support, support for multiple communication protocols, touch screen support, low power consumption, and easy integration. The flexibility of the serial port screen makes it a very useful tool in embedded control panels and human-machine interface design, and the display content and behavior can be customized according to the needs of different applications. The changes in different accelerations and time can be displayed through the serial port screen.

[0044] The Air724UGLTE module is used to communicate with the server through the 4G network. When a car accident occurs, a distress message is sent through the 4G module. It is easy to operate, stable, and cost-effective. The module can be connected to the specified server through a simple AT command control module. In this design, the serial port 1 of the 4G module is connected to the serial port 2 of the main control. The main control sends AT commands to the 4G module through serial port 2 to achieve network communication with the server.

[0045] After the system is powered on, each module is initialized first. After the initialization is completed, the MPU-6050 starts to monitor the acceleration and rollover status of the vehicle in real time. Once abnormal acceleration or rollover is detected, it is determined to be a car accident, and the system will automatically send a distress message to the server. At the same time, when the distance to the vehicle in front drops to an unsafe level, the system will remind the driver through voice prompts to ensure that a safe distance is maintained.

[0046] The system also includes a client software that can receive distress messages and locate the location of car accidents, rollovers and breakdowns, as well as lane information, and can display shared parking spaces and weather conditions.

[0047] Acceleration-based car accident warning systems have broad application prospects in the future. This system can monitor the acceleration of vehicles in real time, thereby improving road traffic safety and reducing the occurrence and severity of traffic accidents. It is also expected to improve emergency rescue. When a vehicle is involved in an accident, it can quickly send a call for help, including the location of the vehicle, to save lives. In addition, by analyzing the driver's behavior, such as sudden braking or sharp turns, the system helps to provide driving behavior feedback, improve driving literacy, and reduce the incidence of accidents. Insurance companies can also use this technology to assess risks and provide more competitive insurance policies. Ultimately, these systems will play a key role in realizing areas such as smart cities and autonomous driving, and promote the safety, efficiency and sustainability of road traffic.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An intelligent road accident avoidance system, characterized by: It includes a low-orbit Beidou positioning satellite and several on-board real-time vehicle detection systems. The low-orbit Beidou positioning satellite is set in orbit and is wirelessly connected to several on-board real-time vehicle detection systems. The on-board real-time vehicle detection system is used to detect the driving status of each vehicle on the road in real time, and then determine whether the vehicle has a breakdown, rear-end collision, rollover or collision accident. If it is determined that an accident has occurred, the on-board real-time vehicle detection system on the accident vehicle will transmit the accident content and the specific location of the accident vehicle to the low-orbit Beidou positioning satellite. After obtaining the location of the accident vehicle, the low-orbit Beidou positioning satellite obtains the road that needs to pass the accident vehicle, and then all vehicles on the road with a fixed distance will receive the accident information broadcast by the low-orbit Beidou positioning satellite, and remind vehicles to detour to avoid traffic jams at the accident location and secondary accidents on the highway.

2. The intelligent road accident avoidance system according to claim 1, characterized in that: The on-board real-time vehicle detection system includes a Beidou positioning module, a gyroscope module, a collision sensor, a 4G wireless communication module, a roof video data acquisition module, a voice road condition notification module, a fault acquisition module and an on-board controller module. The Beidou positioning module, the gyroscope module, the collision sensor, the 4G wireless communication module, the roof video data acquisition module, the voice road condition notification module and the fault acquisition module are all connected to the on-board controller module. The Beidou positioning module is used to communicate with the low-orbit Beidou positioning satellite in real time to transmit the accident information of the vehicle or receive the information of the accident of the external vehicle. The gyroscope module is used to detect whether the vehicle body has rolled over. The collision sensor is used to detect whether the vehicle has rear-ended, been rear-ended or hit. The detected information is transmitted to the on-board controller module. The on-board controller module analyzes and judges the information that needs to be reported and transmits it to the low-orbit Beidou positioning satellite through the Beidou positioning module. The corresponding information of the low-orbit Beidou positioning satellite is then broadcast to vehicles traveling in the corresponding area. At the same time, the on-board controller module reports to the corresponding traffic police department through the 4G wireless communication module. The roof video data acquisition module is used to obtain video data on the road in real time. The voice road condition notification module is used to broadcast accident information on the road where the vehicle is about to travel, reminding the vehicle to avoid and avoid congestion. The fault acquisition module is used to detect in real time whether the vehicle has a fault or is unable to travel due to a breakdown, and transmits it to the low-orbit Beidou positioning satellite through the Beidou positioning module.

3. The intelligent road accident avoidance system according to claim 2, characterized in that: The on-board real-time vehicle detection system also includes a visibility identification module, which is connected to the on-board controller module. The visibility identification module is used to identify the visibility data of the front end of the vehicle in real time. When the vehicle enters an area and the visibility is less than the set value, the on-board controller module sends the vehicle's location information and visibility information to the low-orbit Beidou positioning satellite through the Beidou positioning module, and then the low-orbit Beidou positioning satellite broadcasts the visibility information to the vehicles near the corresponding area to avoid accidents.

4. The intelligent road accident avoidance system according to claim 3 is characterized by: The on-board real-time vehicle detection system also includes a photosensitive sensor, which is connected to the on-board controller module. The photosensitive sensor is used to detect the brightness data outside the vehicle in real time. When the brightness is lower than a certain level, the voice traffic notification module is used to inform the driver to pay attention to the external environment to avoid accidents.

5. The intelligent road accident avoidance system according to claim 4, characterized in that: When a vehicle on the road has an accident, the low-orbit Beidou positioning satellite searches for information about vehicles passing by the accident site based on the location and time of the accident. The low-orbit Beidou positioning satellite then sends a request to the vehicles in front and behind for video data. After the vehicle owner agrees, the video data of the accident is transmitted to the low-orbit Beidou positioning satellite or directly to the traffic police department. When the traffic police department can directly determine the responsibility through the video data, the traffic management department will issue an electronic responsibility determination letter and send it to the corresponding accident vehicle owner for review. The owner can then directly move the accident vehicle or have a tow truck tow it away to avoid traffic congestion.

6. The intelligent road accident avoidance system according to claim 5, characterized in that: When an accident occurs on the road, if no vehicle passes by or no camera captures the accident process, the low-orbit Beidou positioning satellite will send a video shooting request to the vehicle passing the accident site. After the user agrees, the roof video data acquisition module on the vehicle passing the accident site will be aimed at the video information of the accident scene, and then the collected video information will be transmitted to the traffic police department. The traffic police department will make a preliminary determination of responsibility based on the video data, and then notify the owner to move the vehicle away to avoid traffic congestion.

7. The intelligent road accident avoidance system according to claim 6, characterized in that: When data is collected that there are injured people at the scene of the accident, the on-board controller module calls the 120 emergency number through the 4G wireless communication module, and the drivers of vehicles entering in the same direction send out a temporary distress signal.

8. The intelligent road accident avoidance system according to claim 7, characterized in that: The gyroscope module begins to monitor the vehicle's acceleration and rollover status in real time. Once abnormal acceleration or rollover is detected, it is determined to be a traffic accident and the system will automatically send a distress message to an external server. At the same time, when the distance to the vehicle in front drops to an unsafe level, the system will remind the driver through voice prompts to ensure that a safe distance is maintained.

9. The intelligent road accident avoidance system according to claim 8, characterized in that: Collision sensors are installed around the vehicle to detect in real time whether the vehicle has been collided, and then transmit the collision information to the low-orbit Beidou positioning satellite via the Beidou positioning module. The low-orbit Beidou positioning satellite broadcasts it to the Internet or remote users.

Images