【摘要】 对高速公路汽车追尾预警系统进行了总体设计,把系统划分为主控单元、雷达测距单元、信息采集单元、显示-声光报警单元4个子系统。在分析汽车动力学基础上,提出了系统安全距离模型,并对各子系统进行了软、硬件设计。通过模拟试验和实际装车实验,验证了系统所要求的各种性能,雷达测距准确,系统报警及时有效。更多还原

【Abstract】 The present paper has given a detailed account of the author’s work on the design of a rear-end warning system to be adopted by the vehicles running on the superhighways.For the success of the designing work,we have divided the warning system into four sub-systems,that is,the main controlling unit,radar ranging unit,information gathering unit and the monitor,sound & light alarming unit.The whole design has been done on the basis of analyzing the vehicle warning system dynamics,and as a result we have brought about the idea of the safety distance model as the starting point of the whole work of the whole design.To make the system as effective as possible,we have also designed all the sets of software and hardware needed for the system.And,finally,based on the simulation models,the system has been given a series of systematic experimental tests with the vehicles inclined to use the given system.And consequently the validity of the system functions has been proved.On the condition that the distance ranged by the radar is precise,the warning function can be performed in time and effectively.更多还原