汽车防撞系统研究与设计

Study of the Vehicle Anti-collision System

为了提高汽车行驶的安全性,文章介绍了汽车防撞的软件决策系统和硬件电路设计。软件决策部分主要对提出的三种算法进行比较,得出驾驶员预估模型报警算法比较合理,但此算法两个重要参数τ和aτ对结果的影响较大,因此对两个参数的获取也进行了详细介绍;硬件部分关键技术为超声波测距,选择三星公司的S3C2410为核心处理器,保证了硬件系统的稳定性和反应速度。

Software decision system and the hardware circuit design of automobile anti-collision are introduced in this paper. The software decision mainly achieves a conclusion based on comparison with three kinds of algorithms. That is, the pre-estimation model is more reasonable, but two important parameters of this algorithm, τ and αr, have great influence to results. Then, the method of getting these two parameters is also discussed in detail. The critical technology of hardware part is the ultrasound distance measurement. The S3C2410 is adopted as the core processing ware, which has high stability and the reaction velocity.