车载多媒体ECU硬件系统设计与实现

发布时间：2018-03-31 03:01

本文选题：工程机械　切入点：人机交互　出处：《南京理工大学》2013年硕士论文

【摘要】：随着我国经济的高速发展,工程机械在基础设施建设、城镇化建设等领域的应用愈来愈广泛。工程机械控制器作为工程机械的核心部件之一,影响着车辆的可靠性、经济性和维护性。随着工程机械需求量的迅速增加,用户对控制器的功能和性能提出了更高的要求。由于国外在工程机械控制器领域的研究起步较早、投入较大,目前市场上工程机械控制器产品普遍被国外产品所垄断,而大多数国内产品都是在国外控制器的基础上进行二次开发,没有自主知识产权,或者部分拥有自主知识产权的产品,在性能上与国外控制器有所差距。因此为打破国外工程机械控制器的垄断地位,开发具有完全自主知识产权、性能与国外控制器相当的控制器系统,将具有较好的社会意义和较高的实用价值。本课题根据市场需求,结合工程机械控制器领域的现有技术,设计了车载多媒体ECU系统。系统采用ARM11微处理器作为系统的运算处理单元,外接数据采集／输出模块、数据存储模块、人机交互模块、数据通信模块以及多媒体模块等电路,并配合软件设计程序,实现系统的开关量采集和输出、模拟量采集、数据存储、GPS定位、GPRS远程通讯、CAN通信、LCD显示、视频采集以及特色的音、视频播放功能。本文硬件设计完成了系统电路原理图设计和PCB图设计,软件设计完成了系统各功能模块的底层驱动开发,并编写测试程序,对各模块进行功能性和可靠性测试。实验结果表明本设计各项参数均满足设计要求,运行可靠,具有良好的应用前景。
[Abstract]:With the rapid development of economy in China, construction machinery is more and more widely used in infrastructure construction, urbanization construction and other fields.As one of the core components of construction machinery, construction machinery controller affects the reliability, economy and maintainability of vehicles.With the rapid increase in the demand for construction machinery, users put forward higher requirements for the function and performance of the controller.Because of the earlier research and large investment in the field of construction machinery controller abroad, the products of construction machinery controller are generally monopolized by foreign products in the market.However, most domestic products are secondary developed on the basis of foreign controllers. There are no independent intellectual property rights or some products with independent intellectual property rights.Therefore, in order to break the monopoly position of foreign construction machinery controller, develop controller system with completely independent intellectual property rights and comparable performance with foreign controller, it will have better social significance and higher practical value.According to the market demand and the existing technology in the field of construction machinery controller, a vehicle multimedia ECU system is designed in this paper.The system adopts ARM11 microprocessor as the processing unit of the system, data acquisition / output module, data storage module, human-computer interaction module, data communication module and multimedia module, etc.The system realizes the switch quantity acquisition and output, analog data acquisition, data storage, GPS positioning, GPRS remote communication, can communication LCD display, video acquisition and characteristic audio and video playback functions.The hardware design of the system and the design of PCB diagram are completed. The software design completes the bottom driver development of each functional module of the system, and compiles the test program to test the function and reliability of each module.The experimental results show that the design parameters meet the design requirements, run reliably and have a good application prospect.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.11

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