基于CAN总线的抬头显示系统研究

Research of Head-Up Display System Based on CAN-bus

摘要:

车载抬头显示系统是使驾驶员在不移动驾驶视线的情况下就能读取车辆重要信息的装置,它有助于提高驾驶员对信息的读取速度、降低驾驶疲劳、提高驾驶安全性;文章结合国内外学者的研究,针对已上市HUD显示内容格式、布置方式、辨识度、实时性等方面的问题,提出了用彩色符号、分区域、亮度可调、人机交互的显示设计原则;以问卷调查分析结果和信息的重要程度为依据,以CAN总线技术、微处理器控制技术为基础,设计了一套HUD显示系统;结果表明采用分区显示的方法辨识度高、对驾驶员视线影响较小,有助于提高信息的易读性；对显示实时性进行测试表明该装置实时性强,有效提高了驾驶安全性。

Abstract:

Head-Up display system is a device that allows the driver to read important information of automobile without moving the sight,it’s helpful to improve the driver’s reading speed of information,reduce fatigue and improve safety. This paper based on the research of scholars at home and abroad,puts forward a principle of human-computer interaction with a color symbol,partition,adjustable brightness based on the format,arrangement,identification and real-time problems of current HUD system. The HUD system was designed,according to the results of questionnaire,CAN-bus and microprocessor control technology. The results show that the method of partition display has high identification and less impact on the driver's sight,which is helpful to improve the readability of information; The real-time test indicates that the device has high real-time,so that it could improve the driving safety effectively.