Signal control intersection vehicle speed guiding system and guiding method in vehicle road coordination environment

Abstract

The invention proposes a signal control intersection vehicle speed guiding system and guiding method in a vehicle road coordination environment on the basis of the characteristics of the vehicle roadcoordination environment. The system includes a vehicle-mounted device, a roadside device, and a vehicle speed guiding module. The vehicle-mounted device includes a vehicle-mounted information moduleand a vehicle-mounted early-warning module. The vehicle-mounted information module transmits the state information of the vehicle to the roadside device or other vehicle-mounted devices. The vehicle-mounted early-warning module calculates a safety threshold between the vehicles according to the real-time state information of the vehicle and the preceding vehicle, and performs dangerous pre-judgment warning on the vehicle according to the threshold. The roadside device comprises a roadside information acquisition module, a basic information storage module and a wireless communication module, and has the functions of storing, transmitting and calculating. The vehicle speed guiding module provides the lane guiding information and the vehicle speed guiding information of the vehicle when the vehicle enters an intersection section. Compared with the prior art, the signal control intersection vehicle speed guiding system and guiding method take the safety distance of the vehicle into consideration, minimize the delay of the intersection, improve the traffic efficiency and reduce environmental pollution.

Description

technical field [0001] The invention relates to the field of intelligent traffic signal control, in particular to a vehicle speed guidance system and a guidance method at a signal-controlled intersection under a vehicle-road coordination environment. Background technique [0002] With the rapid development of information technology and the extensive and in-depth research on intelligent transportation, especially vehicle-road coordination technology, a more advanced means has been provided to alleviate urban road traffic problems. Vehicle-road coordination technology mainly relies on advanced Internet of Things sensing technology and wireless communication technology to realize information interaction between vehicles and between vehicles and roadside equipment, and dynamically obtain real-time data of people, vehicles, roads, and the environment. To achieve the safety, smoothness and environmental protection of the transportation system. [0003] The application of vehicle-...

AI Technical Summary

Problems solved by technology

Most of the existing research is on the speed guidance method of a single vehicle, without considering the actual situation of multiple vehicles, and also ignoring the interaction between the actual driving vehicle and the front and rear vehicles, so the effect is lacking in practical applications

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