车辆轮胎监测系统设计

车辆轮胎监测系统设计(任务书,开题报告,论文11000字)
摘  要
本设计是基于8C51单片机的车辆轮胎监测系统。核心处理器使用STC89C52，监测模块选择温度压力传感器BMP180，实现实时监测车辆轮胎的胎压和温度。将模拟量转化为数字量发送到显示模块LCD1602液晶屏，显示轮胎的胎压和温度。系统具有超限报警功能，可以通过外部按键电路预设温度胎压上下限，若超出限定值，系统会通过报警电路产生声光报警，将轮胎异常情况提示给驾驶员，提高轮胎的安全性。详细的介绍以C语言为开发语言，以单片机为控制核心的车辆轮胎监测系统。本系统的最终目标是完成基本的测量轮胎温度以及胎压，通过外部按键电路完成温度胎压上下限设定功能，监测数据超过预定值后报警。
本设计对该系统的软硬件设计、工作原理进行了详细的介绍并完成了实物制作。能够实现轮胎胎压温度监测及超限情况下的声光报警，达到了设计要求。
关键词：BMP180；单片机；C语言；声光报警

Abstract
This design is based on the 8C51 microcontroller tire monitoring system. The core processor selects the STC89C52, and the monitoring module selects the temperature and pressure sensor BMP180 to realize real-time monitoring of the tire pressure and temperature of the vehicle tires. The analog quantity is converted into a digital quantity and sent to the display module LCD1602 LCD screen to display the tire pressure and temperature of the tire. The system has an over-limit alarm function. It can preset the upper and lower limits of temperature tire pressure through an external button circuit. If the limit value is exceeded, the system will generate an audible and visual alarm through the alarm circuit, which can give the driver a warning and improve the safety of the tire. The C language is introduced in detail. As a development language, the microcontroller is used as the core of the vehicle tire condition monitoring system.The ultimate goal of the system is to end the monitoring of tire temperature and basic tire pressure. It is very stable and has a good warning limit function for the upper limit of tire pressure.The overall goal is to achieve system reliability, stability, security, and economy.
The design of the system's hardware and software design, working principle was introduced in detail and completed the physical production. It can realize the temperature monitoring of tire pressure and the sound and light alarm in the case of exceeding the limit, achieving the design requirements.
Key Words：BMP180；Single chip microcomputer；C language；Audible alarm
 

目录
第1章 绪论    1
1.1课题背景    1
1.2课题研究的目的和意义    1
1.3 课题实现功能    1
第2章 温度压力传感器概述    2
2.1 本系统的基本结构    2
2.2本系统方案和器件选型方案论证    2
2.2.1本系统方案论证    2
2.2.2本系统器件选型方案论证    3
2.3本章小结    4
第3章 车辆轮胎监测系统的硬件电路设计    5
3.1本系统硬件电路概述    5
3.2系统硬件各模块设计简介    6
3.3 气压传感器BMP180部分    8
3.4 LCD1602液晶部分    9
3.4.1液晶显示器各种图形的显示原理    9
3.4.2 1602字符型LCD简介    13
3.5 按键控制部分    15
3.6 蜂鸣器的选择    16
3.7 本章小结    17
第4章 数字气压计系统的软件设计    18
4.1本系统主程序设计流程    18
4.2 系统各子程序设计    19
4.2.1 BMP180 模块    19
4.2.2 LCD1602模块    24
4.2.3 按键模块    26
4.2.4 主函数    28
4.3 软件编写及烧录到单片机    29
4.4 本章小结    30
第5章 系统设计结果    31
5.1 实物图    31
5.2 实物演示    32
总结    34
参考文献    35
致谢    36