Research On Coach Bus Intelligent Speed-limit Technology

In recent years, coach traffic safety situation in China is very grim, especiallymajor accidents are common, the resulting loss of life and property is very heavy. Thestatistics show that most of the coach accidents are related to inappropriate choice ofvehicle speed, which leads to a great threat of traffic safety. Although the statetransport control department has required forcibly long-distance buses to install GPSDriving recorder, due to the general deficiency of current speed management strategyin speed passenger monitoring system, speed control is still a huge risk which affectlong-distance bus traffic safety. On the basis of the analysis of the inadequacies in thespeed management of long-distance, this passage is trying to put forward a coachintelligent and variable speed-limiting strategy, Based on analysis of key influencingfactors, the erect of long-distance bus intelligent and variable speed-limiting modelingand passenger monitoring technology, This article will carry out in-depth researchdeep research.First, this passage puts forward the idea of the bus intelligent and variablespeed-limiting. Combined with the analysis of the relationship between speed andtraffic safety, this text summarizes up the tremendous impact of speed management ontraffic safety; and proposes passenger intelligent and variable speed-limiting on theideological basis of the analysis in the coach accident cases and accidentcharacteristics, and determines the realization methods.Then, this text considers the erect of the model intelligent and variable speedlimiting. Sorting of thinking of the Analytic Hierarchy Process monolayer, thispassage obtains the key factor which affects the passenger car speed. According tofour kind of the most important factors, this passage puts forward speed-limitingmodel, which include models based on the driver differences intelligent variable,based on the characteristics of the direction of travel, based on differences in climatedemand and based on day and night difference needs four models; author discussed indetail the development of methods for the differences in the speed-limiting value, andcompleted the construction of the intelligent and variable idea.Second, this passage improve the design of the bus speed monitoring system. Onthe basis of several key technologies in the monitoring system this passage combinespassenger intelligent variable speed-limiting thought, author intends to improve thedesign of the hardware,and software, and bring forward a intelligent optimizationadjustment method of the speed-limiting model. Finally, in view of the passenger smart intelligent variable speed-limitingstrategy,this text completes engineering applications and effect evaluation. CombinedChongqing-Wanzhou passenger lines with coach monitoring system in ChongqingSomerset Intelligent Transportation Company, the study tests the variable speed limittechnology and completes impact assessment.