双向式汽车轮胎压力监测系统从机的毕业设计（可编辑）.doc

摘 要 轮胎气压是影响汽车性能和行驶安全的重要因素。轮胎压力监测系统TPMS能对轮胎的气压和温度进行实时监测,在轮胎出现异常情况时自动报警,使驾驶者可以及时发现异常并采取相应的措施,是一种保障行车安全的预警系统。 本课题所在项目采用了一种创新的系统解决方案,将产品从机的安装位置由原来安装在轮毅上改在轮毅轴心上,主机与从机之间的信息通过微型无线网桥传递。本课题方案有效的解决了系统电源以及功耗问题,提高了系统运行的可靠性与稳定性。由于安装方式的改变,使得系统的维护也变得简单起来。 本文的主要工作是在理解整个系统的前提下负责从机模块的电路设计。论文首先介绍了目前国外TPMS的解决方案,并分析其存在的不足之处,进而提出自己的解决方案。在详细设计部分,本论文分为硬件设计和软件设计两大部分。 关键词:TPMS;轮胎模块;监视器模块;无线数据通信 ABSTRACT Automobile tire pressure is an important factor to affect the performance in traffic safety. Tire Pressure Monitoring System TPMS on tire pressure and temperature in real-time monitoring can alarm in the unusual case,so that drivers can be abnormal in time and take corresponding measures to protect traffic safety. The subject of the project used an innovative system solutions for the structure,between the host and sub-machine information transfer through the micro-wireless bridge,wireless bridge developed through DCPL bus connected with the host. The program issues an effective solution of the system power and power consumption issues,improved system reliability and stability. As a result of a change in the way of the installation,making the system easier to maintain also. In this paper,the main task is to understand the premise of the whole system when it is responsible for co-design module. Paper first introduced the current foreign TPMS solutions,and analyze its shortcomings,and propose their own solutions. The paper is divided into two major parts,the detailed design and the hardware design. Keywords: TPMS;Tire Module;Monitor Module;Wireless Data Communications 目 录 第1章 绪 论 3 1.1 课题背景 3 1.2 轮胎安全性能的分析 3 1.2.1 温度对轮胎安全性能的影响 3 1.2.2 压力对轮胎性能的影响 4 1.2.3 轮胎压力过低对轮胎安全性能的影响 4 1.2.4 轮胎压力过高对轮胎安全性能的影响 5 1.3轮胎经济性能分析 5 1.4国内外发展状况 6 1.5应用前景 6 1.6课题的提出 6 第2章 TPMS系统的总体设计 8 2.1系统概述 8 2.1.1 TPMS系统的分类 8 2.1.2 轮胎压力监测系统的结构组成 8 2.2 国外TPMS系统的解决方案 9 2.3本课题的解决方案 10 2.4系统设计要求 11 2.4.1系统工作环境 11 2.4.2系统功能要求 12 2.4.3系统技术要求