A method and device for emergency road condition information transmission based on fuzzy decision

Abstract

The invention discloses a method and device for transmitting emergency road condition information based on fuzzy decision. When a vehicle carrying emergency road condition information is driving at an intersection, the optimal road section to be passed is selected by fuzzy decision; when a vehicle carrying emergency road condition information is driving on the road , select the next-hop optimal forwarding vehicle through fuzzy decision; in the present invention, the fuzzy information replaces the original traffic data and is used for the fuzzy decision when the emergency road condition information is forwarded, and the designed fuzzy operator, fuzzy domination filtering rule and random decision also ensure Therefore, the emergency road condition information is sent to the destination in a timely and reliable manner, which can effectively reduce the harm caused by the emergency road condition. The method proposed by the invention has low computational and communication costs, is easy to deploy and implement by utilizing existing roadside traffic facilities, and has high practical value.

Description

technical field [0001] The invention relates to the field of smart city traffic, in particular to a method and device for transmitting emergency road condition information based on fuzzy decision. Background technique [0002] Vehicles driving on the road (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 front and behind 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 Internet of Vehicles to solve the problem of fast and reliable transmission of emergency road condition informat...

AI Technical Summary

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

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