本科毕业设计--轮胎压力监测系统.doc

《本科毕业设计--轮胎压力监测系统.doc》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、青岛理工大学本科毕业设计（论文）说明书摘要轮胎压力监测系统(TirePressureMonitoringSystem，TPMS)是车辆安全行驶的重要保障之一，在汽车电子技术高速发展和对汽车安全性能要求更高的前提下，对TPMS系统的研究和设计具有广泛的应用前景，并能带来良好的经济效益和社会效益。论文深入分析了TPMS技术的研究现状和发展趋势，并对比了间接式TPMS和直接有源式TPMS的优缺点。选择直接有源式TPMS作为本文的研究目标，利用嵌入轮胎中的传感器检测轮胎的压力、温度以及供电电池的电压等参数，并通过无线射频方式发射到安装在驾驶室的监视器上。监视器实时显示各轮胎参数，在

2、出现异常时及时发出相关告警信息。论文针对直接有源式TPMS技术实现的主要难点问题，包括系统预警的准确性和可靠性、检测传感器模块的低功耗性能等，开展了以下工作：1)对RF发射部分进行详细设计，包括发射天线的匹配网络、无线通信协议以及RF发射管理机制等；2)提出改进的基于多传感器融合技术的预警算法，有效提高系统预警的正确性，避免告警信号的漏报和误报；3）分析TPMS应用的电磁环境，在电磁兼容性设计层面上，阐述了系统的软硬件设计方案；4)在选择极低功耗检测传感器等器件的基础上，选择更适合应用环境的锂亚供电电池，并采取良好的电源管理机制；5)充分考虑TPMS与其他车载设备之间的信息

3、共享问题，进行基于CAN总线的联机通信设计。测试表明，所设计的直接有源式TPMS系统有效地提高了检测精度和预警的准确率，较好地达到了预期设计目的。关键词：TPMS，无线通信，电磁兼容，预警算法，CAN46青岛理工大学本科毕业设计（论文）说明书目录摘要··············································I目录················································II第1章绪论·······················································11.1导言

4、····················································11.2TPMS研究现状·············································1第2章TPMS原理及方案设计····································32.1TPMS工作原理········································32.2系统整体方案设计·········································32.2.1系统设计要求46青岛理工大学本科毕业设

5、计（论文）说明书········································32.2.2系统方案论证与设计······························52.3本章小结················································7第3章轮胎参数检测与发射模块的硬件设计····················83.1轮胎参数检测模块设计······································83.2系统低功耗设计······································

6、··93.3无线发射单元设计······································103.3.1天线匹配网络及设计································113.3.2无线通信协议设计·································163.4TPMS检测发射模块的安装································193.5本章小结···············································20第4章中央接收与处理模块的硬件设计·················

7、··········2146青岛理工大学本科毕业设计（论文）说明书4.1中央接收与处理模块总体设计······························214.2核心微控制器及RF接收单元设计···························214.3差错检测技术设计·········································254.4人机接口硬件设计······································264.5联机通信单元设计················