The invention discloses an expressway automobile rear-end collision prevention system and a working method thereof. According to the system, a non-contact radio frequency identification mode based onRFID is adopted to realize vehicle positioning and vehicle speed identification, and early warning of vehicle tailgating is realized, so that the problem of failure of rear-end collision early warningwhen encountering curve obstacles in a rear-end collision prevention system based on laser and radar technologies is solved, the problem of poor real-time performance of rear-end collision early warning in the rear-end collision prevention system based on an image recognition technology is solved, and the problem that lanes cannot be distinguished in the rear-end collision prevention system basedon a global positioning technology is solved. The system is simple in structure; the position of a vehicle Cj is obtained by reading RFID non-contact radio frequency identification electronic tags placed at equal intervals PL on the center line of the traffic lane; and the system has 100% acquisition accuracy and shortest position acquisition time, is not influenced by weather factors and curve obstacles, and ensures the real-time performance of early warning of the vehicle rear-end collision prevention system.

Zeng Tingting

Papers

Expressway automobile rear-end collision prevention system and working method thereof