A kind of anti-collision warning method and system of motor vehicle based on satellite navigation

Abstract

The invention relates to motor vehicle anti-collision early warning technology. The invention discloses a motor vehicle anti-collision early warning method based on satellite navigation and belongs to the field of intelligent transportation technology. Based on the satellite navigation signals received by the motor vehicles, the sending and receiving of satellite navigation messages and motor vehicle characteristic information between vehicles is realized through wireless communication. The processing unit is based on the received navigation messages of surrounding motor vehicles, the navigation messages of the own vehicle and the original measurements. Based on the data, a differential measurement equation is constructed and solved to obtain high-precision relative position and speed information of surrounding vehicles, and at the same time predict the position at the next moment. The vehicle can sense the precise position of surrounding motor vehicles in real time and trigger before a possible collision. Alarm, reminding the driver to take corresponding avoidance measures to achieve anti-collision warning of motor vehicles.

Description

technical field [0001] The invention relates to motor vehicle anti-collision technology, in particular to a satellite navigation-based motor vehicle anti-collision early warning method and system. Background technique [0002] With the rapid development of my country's economy and the rapid improvement of national living standards, automobiles have become one of the necessities for improving family life. At the 2010 China Auto Industry Development International Forum, the Ministry of Industry and Information Technology predicted that in the 10 years before 2020, China will add more than 130 million new car ownership, and the total number will exceed 200 million. While automobiles bring convenience to people's lives, traffic accidents have become a big trap on the road to a happy life. Every year, tens of thousands of lives are wiped out due to traffic accidents, and countless families are fragmented due to traffic accidents. A large amount of traffic accident data shows tha...

AI Technical Summary

Problems solved by technology

However, this patent only broadcasts the position information of the vehicle obtained by each vehicle satellite positioning module. At present, the positioning accuracy of the civilian satellite positioning module is 5-10 meters, and the positioning accuracy of the military-grade satellite positioning module is about 2. m, based on such position accuracy, the anti-collision effect is very limited. When the vehicle is driving at high speed, coupled with the reaction time of the driver to take action, only the current position information is used to judge whether the two vehicles are in danger of colliding. not reasonable

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