Emergency road condition information transmission method and device based on fuzzy decision
A technology of road condition information and fuzzy decision-making, which is applied to traffic control systems, instruments, and combustion engines of road vehicles. Deployment and implementation, harm reduction, and high practical value effects
Active Publication Date: 2022-05-13
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0003] Vehicles are usually equipped with on-board units OBU and GPS modules, which enable them to have certain computing and communication capabilities, but this capability is very limited, so lightweight edge computing methods are required in data transmission services; in addition, dynamically changing vehicles and The complex road environment makes the Internet of Vehicles have a lot of uncertainty and unpredictability, and complex and accurate calculations are difficult to ensure the accuracy of calculation results
Method used
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specific Embodiment
[0080] A specific embodiment of the present invention is as follows:
[0081]When a vehicle encounters an emergency road condition, the emergency road condition includes sudden flooding in a tunnel, traffic accidents, road landslides, etc. Emergency road condition information must be quickly transmitted to roadside traffic facilities at a certain location, or the entrance to the affected area, in order to reduce the loss of life and property caused by emergency road conditions. A vehicle that encounters an emergency road condition at the beginning will record and carry the emergency road condition information, and then the vehicle will continuously sniff out forwarding vehicles that are more conducive to reaching the destination than itself, and transmit to the destination hop by hop. During the transmission of emergency road condition information, the vehicle V carrying emergency road condition information c Either drive at an intersection or drive on the road. V c When at...
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The invention discloses an emergency road condition information transmission method and device based on a fuzzy decision, and the method comprises the steps: selecting a to-be-passed optimal road section through the fuzzy decision when a vehicle carrying emergency road condition information runs at an intersection; when the vehicle carrying the emergency road condition information runs on the road, selecting a next-hop optimal forwarding vehicle through a fuzzy decision; in the invention, the fuzzy information replaces the original traffic data to be used for fuzzy decision when the emergency road condition information is forwarded, in addition, the designed fuzzy operator, the fuzzy dominating filtering rule and the random decision also ensure that the emergency road condition information is timely and reliably sent to the destination, and the harm caused by the emergency road condition can be effectively reduced. The method provided by the invention is low in calculation and communication overhead, easy to deploy and implement by using the existing roadside traffic facilities, and high in practical value.
Description
technical field [0001] The invention relates to the field of smart city traffic, in particular to a fuzzy decision-based emergency road condition information transmission method and device. Background technique [0002] Vehicles driving on roads (especially special road sections, such as tunnels) encounter emergency road conditions or accidents, and need to quickly transmit emergency road condition information to roadside traffic facilities or vehicles in the front and rear to avoid more serious traffic accidents and losses. The rapid movement of vehicles on the road has a great impact on the quality of data packet transmission (Quality of Service, QoS), such as the success rate and real-time performance of data packets reaching the destination. Therefore, it is a challenging task to design a lightweight real-time data transmission scheme for high-mobility IoV to solve the problem of fast and reliable transmission of emergency road condition information. [0003] Vehicles a...
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Patent Timeline
Login to View More IPC IPC(8): G08G1/01G08G1/0968
CPCG08G1/0125G08G1/0129G08G1/0137G08G1/096833Y02T10/40
Inventor 许馨宸李英龙季白杨
Owner ZHEJIANG UNIV OF TECH