Signal lamp crossing vehicle speed guiding device based on dedicated short range communication and method thereof

Abstract

The invention provides a signal lamp crossing vehicle speed guiding device based on dedicated short range communication and a method thereof. The device comprises an on-vehicle unit and a roadside unit, wherein the on-vehicle unit comprises a first data processing module, a first DSRC communication transceiver module, a first GPS module, a self vehicle information acquisition module and an HMI module. The roadside unit comprises a second data processing module, a second DSRC communication transceiver module, a second GPS module, an information acquisition module and a communication module. According to the device and the method, through information interaction between the on-vehicle unit and the roadside unit, interconnection and intercommunication between the vehicle and a driving environment can be realized. The DSRC communication transceiver module is utilized. Through vehicle-and-road coordination technology, road information around the vehicle and information of other vehicles canbe obtained. The vehicle is not an information island in the road any longer, thereby preventing collision, improving driving safety, improving traffic efficiency, realizing relatively low calculation amount and realizing easy realization.

Description

technical field [0001] The present invention relates to the fields of intelligent transportation system and Internet of Vehicles, in particular, to a traffic speed guidance device and method for signal light intersections based on dedicated short range communications (DSRC, Dedicated Short Range Communications). Background technique [0002] With the rapid development of my country's transportation industry, the number of motor vehicles has increased sharply, and the road congestion in my country, especially in large cities, is becoming more and more serious, and the pressure on urban traffic management is increasing. The effectiveness of administrative measures such as peak traffic restrictions, license plate purchase restrictions, and tail number restrictions has become less and less effective. It is necessary to solve related problems through intelligent transportation methods such as vehicle-road coordination. With the help of dedicated short-range communication technolo...

AI Technical Summary

Problems solved by technology

However, the existing technology has the following deficiencies: ① some algorithms consider limited scenarios, only consider the speed guidance when the green light is on, and do not consider the speed guidance when the red light is on; ② only calculate based on real-time acceleration Guided vehicle speed, but the real-time acceleration changes greatly, and the obtained guided vehicle speed varies greatly, making it difficult to obtain a stable and continuous guided vehicle speed; ③The algorithm is complex and the amount of calculation is large

However, the patented method does not consider the vehicle acceleration, making it difficult to obtain a stable and continuous guided vehicle speed, and the algorithm is relatively complicated

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