摘要
为解决现有电子站牌在用户体验以及系统可靠性方面的问题,提出了一种新型嵌入式电子站牌系统,该系统采用基于ARM的嵌入式平台,将图形化报站信息与多媒体播报融合到高清LCD屏幕显示,同时实现了基于时间戳的心跳算法和误报避免算法,并利用基于单稳态触发的接口控制器对主板及外围设备进行监控。经过测试和实际应用结果表明了该系统具有高可靠性和良好地用户体验,具有广泛的社会效益,并且电子站牌与多媒体播报的结合蕴含着一定的商业潜力。
To solve the problem on user experience and system stability in current electronic bus-stop board, a new type system is designed on embedded platform. The new system realizes an organic integration of graphic reporting and multimedia broadcast with HD （high definition） LCD screen. At the same time, the new system realizes the heartbeat algorithm and the misinforma tion processing algorithm, and the mono-stable interface control unit is designed to monitor the motherboard and other devices. Test and practical application confirmed its stability in complex environment and better user experience. For this reason, the new system not only achieves widespread social effectiveness, but also contains better commercial potential for the integration of elec tronic bus-stop board and multimedia broadcast.
出处
《计算机工程与设计》
CSCD
北大核心
2014年第1期102-106,275,共6页
Computer Engineering and Design
基金
国家自然科学基金项目(60832011)
国家973重点基础研究发展计划基金项目(2009CB320803)
四川大学青年教师科研启动基金项目(2009scu11035)
关键词
电子站牌
图形化报站
多媒体播报
接口控制器
嵌入式系统
electronic bus-stop board
graphic reporting
multimedia broadcast
interface control unit
embedded system
