【作者】 翁东波；

【导师】 陈荣保；

【作者基本信息】 合肥工业大学 ， 检测技术与自动化装置， 2007， 硕士

【摘要】 最新统计表明，我国已经是世界第二大汽车消费国。汽车不仅提升了人们的生活质量，为人们的出行提供了极大的便利，同时也连带出一个附加的技术：防盗。市场上现有的汽车防盗产品都有着这样那样的缺点，诸如：误报率高、安装不便、维护不便、声光污染和价格昂贵等缺点。微电子技术、汽车总线技术和无线通信技术的不断发展为我们在汽车防盗技术上提供了新思路和新手段。本文首先介绍了基于LIN总线和彩信的汽车防盗系统的总体方案设计，在分析了汽车总线、短信及彩信通信的特点后，选择了基于LIN总线，短信和彩信相结合的方法构建本系统。设计了基于LIN总线的移动终端的硬件结构。文中叙述了移动终端的硬件设计方法和电路实现的相关细节，包括芯片选型、DSP与MCU的接口电路、GPRS模块接口电路、电源转换；并详细叙述了基于DSP的图像采集和压缩的方法。进行了系统软件设计，主要实现以下功能：在设防方式下，当安放于车内的传感器／开关触发时，移动终端发送中文报警短信或彩信到指定手机；车主可通过报警信息准确了解汽车的遭侵害位置，紧急情况下可以发送短信回控汽车；另外，车主还可以利用个人电脑进行远程控制。更多还原

【Abstract】 The new statistics show that China has become the world’s second auto consumption market. Autos not only improve the quality of people’s life, but also bring great convenience for traveling. In addition, it raises another technology: auto guard. The current auto guard products have some disadvantages such as high false alarm rate、inconvenience of installation and maintaining、sound and light pollution and high price. The developing technologies of microelectronic、automotive network bus and wireless mobile communication provide us new ideas and new methods.This paper discusses the overall conceptual design of auto-guard system based on LIN bus and MMS. After the analyzing the characteristic of the Short Message Service (SMS) and Multimedia Messaging Service (MMS), we choose to build our system with the combination of LIN bus, SMS and MMS.We designed the terminal hardware structure based on LIN bus. It introduces the terminal’s hardware design method and correlative details of circuit implement which include chip selection, interface circuit between DSP and MCU, GPRS module interface circuit, power supply. It also fully discusses the image acquisition and compression based on DSP.The software of the system was designed to realize the function as follows: sending SMS in Chinese or MMS to appointed mobile telephone when detectors placed in auto was activated; User can know which part is offended accurately through alarm message; In emergency, the user can control auto by the means of breaking its oil circuit and switching off its motor. In addition, user can remotely control auto by computer.更多还原