摘要
在深入分析国内外无线通信技术和嵌入式技术现状后,针对现有嵌入式无线信息终端软件升级方式研究的不足,以软件升级方式的快速性、安全性和可靠性为目标,提出了一种基于3G无线网络模块的软件在线方法。描述了软件在线升级方法的设计思路和工作原理,详细阐述了其关键技术的设计与实现,最后给出了应用实例和验证结果。验证结果表明,该方法升级速度快、安全系数大、可靠性高,可以有效地降低嵌入式无线信息终端软件的更新和维护成本。
Based on the existing research and achievements of wireless communication and embedded technologies home and aboard,a kind of software online upgrade method based on a 3rd generation wireless module was proposed with the goal of rapidity,safety and reliability,concerning the shortage of the existing software upgrade methods in embedded wireless information terminal.At first,the design ideas and working principles were described.Then the designs of the key technologies were expounded in detail.At last,an application case with test result was given.The result shows the method is rapid,safe and reliable,and the cost of software renewal and maintenance can be effectively reduced.
出处
《计算机应用》
CSCD
北大核心
2010年第7期1725-1727,共3页
journal of Computer Applications
基金
国家自然科学基金资助项目(50775228)
重庆市自然科学基金资助项目(CSTC2006BB2237)
关键词
车载信息终端
嵌入式
在线升级
可靠性
WCDMA
3G
vehicle information terminal
embedded
online upgrade
reliability
Wideband Code Division Multiple Access（WCDMA）
3rd Generation（3G）
