Research on Anti-Interference of Collision Recognition Method of Automatic Crash Notification System
Lu Ying1, Ye Hengyi1, Wei Kai2
（1. Jiangsu University, Zhenjiang 212013; 2. Kinlong United Automotive Industry (Suzhou) Co., Ltd., Suzhou 215026）
In order to improve the anti- interference and reduce the false triggering probability of automatic crash【Abstract】distress system, firstly, the specific power algorithm and moving window integration algorithm were selected to analyze the trend of the output signals in typical operating conditions; then, a method of determining the two- stage threshold according to the relationship between the threshold size and the number of triggers was given; at last, the specific power algorithm and moving window integration algorithm based on two- stage threshold were used to verify the rationality of threshold. The results show that the designed two- stage threshold algorithm and the determined thresholds can improve the antiinterference performance of automatic crash distress system.
Key words: Automatic crash notification system, Anti-interference, Collision recognition, Twostage threshold