CN115909782A - Vehicle networking based rear vehicle early warning method for road environment abnormal condition - Google Patents
Vehicle networking based rear vehicle early warning method for road environment abnormal condition Download PDFInfo
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- CN115909782A CN115909782A CN202211413395.9A CN202211413395A CN115909782A CN 115909782 A CN115909782 A CN 115909782A CN 202211413395 A CN202211413395 A CN 202211413395A CN 115909782 A CN115909782 A CN 115909782A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The method is realized by the aid of receiving and forwarding of a server on a vehicle provided with a vehicle auxiliary driving system and a vehicle-mounted terminal, wherein the vehicle auxiliary driving system comprises a camera, a radar, a satellite positioning device and a matched software system, and comprises the following steps: a. the vehicle auxiliary driving system of the front vehicle uploads road condition information of a front road and vehicle running record data recorded in real time in the special vehicle-mounted terminal of the front vehicle to a server through the special vehicle-mounted terminal; b. the server receives road condition information and vehicle driving record data sent by a front vehicle, packages the road condition information and the vehicle driving record data to form abnormal road condition information, and sends the abnormal road condition information to a rear vehicle passing through a section of distance before the starting position of the abnormal road section passing through according to the traveling direction of the front vehicle for early warning.
Description
Technical Field
The invention belongs to the technical field of vehicle driving safety, relates to a vehicle early warning method based on a vehicle network under abnormal road environment conditions, and is particularly suitable for truck vehicles provided with a vehicle auxiliary driving system.
Background
At present, macroscopic information of a road traffic environment can be well acquired, such as traffic flow, congestion conditions, meteorological data and the like, but abnormal situations or elements of the road traffic environment in a relatively microscopic level are relatively difficult to acquire, such as a small section of road on a highway has dense fog, partial sections of road are frozen or other omissions cause wet and slippery road surfaces, a cone or a tripod is arranged on a certain lane due to road maintenance or accidents, and a truck is left on a certain road.
At present, a large number of cameras and sensing devices are arranged on an existing expressway, and can be used for acquiring data of road environment, including abnormal data such as road traffic accidents and meteorological data, the abnormal data can be sent to vehicles behind abnormal position points through roadside devices or internet of vehicles, the vehicles behind the abnormal position points can perform corresponding emergency treatment after receiving the information, rear-end collision or other secondary accidents of the vehicles behind the vehicles in front due to emergency braking are avoided, and therefore road traffic safety is improved.
However, the above devices installed on the road have a great disadvantage that only a certain point or a certain road section of the road can be monitored and distinguished, and most of the devices are installed on an important road section, so that the devices cannot effectively and completely cover the road. If an abnormal situation occurs at a position between the installations, it cannot be detected, thereby reducing the safety of the vehicle in driving.
Disclosure of Invention
The invention aims to solve the technical problem that abnormal road conditions are monitored in a whole road Duan Douneng, and designs a rear vehicle early warning method based on an internet of vehicles for the abnormal road environment conditions.
The invention adopts the technical scheme that the vehicle early warning method after the abnormal condition of the road environment based on the internet of vehicles is realized by the receiving and forwarding of a server on a vehicle provided with a vehicle auxiliary driving system and a vehicle-mounted terminal, wherein the vehicle auxiliary driving system comprises a camera, a radar, a satellite positioning device and a matched software system, and the key point is that the early warning method comprises the following steps:
a. the vehicle auxiliary driving system of the front vehicle uploads road condition information of a front road and vehicle running record data recorded in real time in the special vehicle-mounted terminal of the front vehicle to a server through the special vehicle-mounted terminal;
b. the server receives road condition information and vehicle driving record data sent by a front vehicle, acquires positioning information of a starting point and a terminal point of an abnormal road section passed by the front vehicle, packages the road condition information and the vehicle driving record data to form abnormal road condition information, sends the abnormal road condition information and the vehicle driving record data to a rear vehicle passing by in a section of distance before the starting point of the abnormal road section according to the advancing direction of the front vehicle for early warning, and displays the abnormal road condition information and the abnormal road condition information on a special vehicle-mounted terminal of the rear vehicle.
In the step a, the road condition information of the road ahead and the vehicle driving record data are uploaded in real time or manually instructed by a driver or interactively controlled by voice to start the uploading mode.
In the step a, the road condition information of the front road comprises road surface obstacles, local road section weather conditions and road traffic accidents, and the vehicle running record data comprises vehicle speed and slip rate.
And b, sending the vehicle passing behind within 200-2000 meters before the starting position of the abnormal passing road section according to the traveling direction of the front vehicle to perform early warning.
In the step b, the server sends the abnormal road condition information to the road side equipment in the road section behind the front vehicle.
In the step b, the server sends the abnormal road condition information to the front of the rear vehicle, and a step of confirming by a driver of the front vehicle is added, and when the driver confirms, the server sends the abnormal road condition information to the rear vehicle.
The invention has the beneficial effects that based on the existing mature vehicle auxiliary driving system and the vehicle-mounted terminal, the early warning of the road environment abnormal condition in the whole area can be realized only by fusing data and receiving, packaging and forwarding the data by virtue of a special server, and the cost investment is lower. The method can realize the early warning of the abnormal conditions of the road environment in the whole area, avoid the early warning blind area caused by installing the sensing equipment at a specific road section in the prior art, and avoid rear-end collisions or secondary accidents of rear vehicles by early warning the vehicles 200-2000 meters before the initial position of the abnormal road section.
Detailed Description
When the system is implemented specifically, mature equipment is provided in the conventional vehicle driving assistance system, and comprises a camera, a radar, a satellite positioning device and a matched software system, wherein the software system comprises one or more of a panoramic all-round looking system, a lane keeping system, a lane departure system, an automatic emergency braking system, a satellite positioning system and a video prevention and control system of key operation vehicles which are greatly promoted by provinces and cities in China, and the functions of lane keeping, constant-speed cruising, environment vision and the like can be realized. The satellite positioning device can adopt a GPS or a Beidou, and the vehicle-mounted terminal is an independent system and has the functions of receiving and sending wired or wireless data and the like. With the development of the technology, the running data of the vehicle body can be accessed to the vehicle-mounted terminal through the in-vehicle network, and the data of the vehicle driving assistance system can also be accessed to the vehicle-mounted terminal. The vehicle-mounted terminal summarizes all data generated by vehicle operation, and can simply process the data and send the data to the server/platform through a wireless network. Meanwhile, the vehicle-mounted terminal can also monitor real-time data of systems such as power transmission, braking, control, tire pressure monitoring and driving assistance of the vehicle, and can realize on-line positioning, meteorological information, road basic condition collection and the like through the Internet and the APP.
Based on the installed vehicle auxiliary driving system, the special server can be used for collecting the road condition information of the road environment in front of any vehicle, if an abnormal condition occurs in front of a certain vehicle, the server can pack the abnormal condition to generate the abnormal road condition information, and then the abnormal road condition information is forwarded to the vehicle behind the vehicle.
In the first embodiment, when a certain vehicle finds that an accident vehicle exists ahead, the type and the positioning information of a special obstacle marked after data processing is performed on data acquired by a camera, a radar and other sensing devices of a driving assistance system of the vehicle, the type of the obstacle can comprise a cone, a tripod, truck scattered objects and the like, the positioning information comprises the longitude and latitude of the start point and the end point of an abnormal road section, the longitude and latitude of the second lane of a road, the information of the second lane of the road, the second lane of the road or the information of the second lane to the fourth lane of the road needing to be uploaded to a roadside device or a server, and the server can know that the accident vehicle exists ahead through image processing, so that an abnormal road condition information prompt of 'the accident vehicle ahead, please pay attention to avoid' can be generated, and the abnormal road condition information prompt is sent to a passing vehicle within 2 kilometers behind the vehicle after being confirmed by a driver of the data acquisition vehicle. Because the front vehicle is provided with the GPS, the server can relatively accurately know the starting position and the end position of the accident road section, and further can calculate the vehicles within 2 kilometers away from the starting point of the accident road section, and all the vehicles provided with the vehicle auxiliary driving system and the vehicle-mounted terminal system are also provided with the GPS, so that the server can know which vehicles are about to pass through the accident road section, and further provide early warning information for the vehicles.
If the front vehicle uses the navigation, the information can be sent out after the simple language interactive confirmation. If the rear vehicle uses the navigation to be 200-2000 m before the starting point of the abnormal road environment section, the navigation broadcasting mode is used for reminding the driver.
In a second embodiment, when a certain vehicle is frozen in a road section, the vehicle has wheel slip and body side slip, and the like, the vehicle speed, slip rate, accelerator opening, system pedal and other data are acquired through a Controller Area Network (CAN) in the vehicle, when the vehicle is judged to be in normal driving, the vehicle slip rate data on the certain road section is larger than a certain set threshold, and the vehicle does not exceed the threshold when the vehicle normally runs, and the server judges that the road surface of a local section of the road is frozen or the road surface of the local section is wet and slippery due to other reasons by combining with meteorological data and the like acquired through the internet, uploads the initial longitude and latitude data and end longitude and latitude data of the road section to a road side device or reports the initial longitude and latitude data to a server, and the server CAN judge that the road section where the vehicle is frozen by combining with vehicle-mounted terminal meteorological information of the vehicle, so that the server CAN generate a prompt message of 'icing on the front road section, please slow running' at a specific position acquisition of the rear vehicle is the same as that in the first embodiment, and details are repeated. Therefore, the dangerous situation in front of the rear vehicle is informed in advance, and the driving safety of the rear vehicle is facilitated.
In the third embodiment, when a certain vehicle runs to a local section and fog occurs or visibility is very low, the server agrees to capture a road video image through a camera of the vehicle in front, and the server can know that fog occurs in the area through image processing, and sends out early warning information of 'meeting the fog in front, please turn on double flashes and a fog lamp, reduce the speed of the vehicle and pay attention to safety', and the early warning information is provided for a vehicle behind after being confirmed by a driver of a data acquisition vehicle.
In the fourth embodiment, when a certain vehicle runs normally, the vehicle accident which happens just meets the situation, and the road traffic accident comprises rear-end collision, rollover and the like. The driver also can carry out the special vehicle-mounted device of manual control and send the instruction, and the video image that gathers the camera is uploaded to the server to initiatively send out warning information, the server receives the back, and the driver of data acquisition vehicle confirms the back and forwards to the rear vehicle, slows down slowly in advance, avoids appearing the secondary traffic accident. Of course, the road traffic accident data may also be derived from navigation information.
All the road abnormal data can be fused through the Internet of vehicles or a vehicle-mounted terminal. The fusion can be the fusion of the lowest level, wherein the data comprehensive analysis is carried out before the raw observation information of various sensors is not processed; or may be a road environment element that has been perceived and marked by the vehicle driving assistance system itself. In a word, the method can realize rear vehicle early warning in all areas.
The method is realized by the aid of receiving and forwarding of a server on a vehicle provided with a vehicle auxiliary driving system and a vehicle-mounted terminal, wherein the vehicle auxiliary driving system comprises a camera, a radar, a satellite positioning device and a matched software system, and comprises the following steps: a. the vehicle auxiliary driving system of the front vehicle uploads the road condition information of the front road and vehicle running record data recorded in real time in the special vehicle-mounted terminal of the front vehicle to a server through the special vehicle-mounted terminal; b. the server receives road condition information and vehicle driving record data sent by a front vehicle, packages the road condition information and the vehicle driving record data to form abnormal road condition information, and sends the abnormal road condition information to a rear vehicle passing through a section of distance before the starting position of the abnormal road section passing through according to the traveling direction of the front vehicle for early warning.
Claims (6)
1. The method is realized by the aid of the receiving and forwarding of a server on a vehicle provided with a vehicle auxiliary driving system and a vehicle-mounted terminal, wherein the vehicle auxiliary driving system comprises a camera, a radar, a satellite positioning device and a matched software system, and is characterized in that: the early warning method comprises the following steps:
a. the vehicle auxiliary driving system of the front vehicle uploads the road condition information of the front road and vehicle running record data recorded in real time in the special vehicle-mounted terminal of the front vehicle to a server through the special vehicle-mounted terminal;
b. the server receives road condition information and vehicle driving record data sent by a front vehicle, acquires positioning information of a starting point and a terminal point of an abnormal road section passed by the front vehicle, packages the road condition information and the vehicle driving record data to form abnormal road condition information, sends the abnormal road condition information and the vehicle driving record data to a rear vehicle passing by in a section of distance before the starting point of the abnormal road section according to the advancing direction of the front vehicle for early warning, and displays the abnormal road condition information and the abnormal road condition information on a special vehicle-mounted terminal of the rear vehicle.
2. The vehicle networking based rear vehicle early warning method for road environment abnormal conditions as claimed in claim 1, wherein: in the step a, the road condition information of the road ahead and the vehicle running record data are uploaded in real time or manually instructed by a driver or interactively controlled by voice to start the uploading mode.
3. The vehicle networking based rear vehicle early warning method for road environment abnormal conditions as claimed in claim 1, wherein: in the step a, the road condition information of the front road comprises road surface obstacles, local road section weather conditions and road traffic accidents, and the vehicle running record data comprises vehicle speed and slip rate.
4. The vehicle networking based rear vehicle early warning method for road environment abnormal conditions as claimed in claim 1, wherein: and b, sending the vehicle passing behind within 200-2000 meters before the starting position of the abnormal passing road section according to the traveling direction of the front vehicle to perform early warning.
5. The vehicle networking based rear vehicle early warning method for road environment abnormal conditions as claimed in claim 1, wherein: in the step b, the server sends the abnormal road condition information to the road side equipment in the road section behind the front vehicle.
6. The vehicle networking based rear vehicle early warning method for road environment abnormal conditions as claimed in claim 1, wherein: in the step b, the server sends the abnormal road condition information to the front of the rear vehicle, and a step of confirming by a driver of the front vehicle is added, and when the driver confirms, the server sends the abnormal road condition information to the rear vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211413395.9A CN115909782A (en) | 2022-11-11 | 2022-11-11 | Vehicle networking based rear vehicle early warning method for road environment abnormal condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211413395.9A CN115909782A (en) | 2022-11-11 | 2022-11-11 | Vehicle networking based rear vehicle early warning method for road environment abnormal condition |
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| CN115909782A true CN115909782A (en) | 2023-04-04 |
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| CN202211413395.9A Pending CN115909782A (en) | 2022-11-11 | 2022-11-11 | Vehicle networking based rear vehicle early warning method for road environment abnormal condition |
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- 2022-11-11 CN CN202211413395.9A patent/CN115909782A/en active Pending
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