嵌入式设备与网络数据库交互的中间件设计  

Middleware of embedded devices and remote database interaction

作　　者：杨刚[1] 陈健美[1] 宋余庆[1] 孙来兵[1] 李子强[1] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013

出　　处：《计算机工程与设计》2013年第11期3878-3882,共5页Computer Engineering and Design

基　　金：教育部博士点基金项目(20113227110010);江苏省高校自然基金项目(10KJB520004);江苏省软件与集成电路专项基金项目(2009[100])

摘　　要：针对目前无线嵌入式设备与网络数据库之间交互存在速度较慢、实时性不高的问题,提出了一种无线嵌入式设备与数据库交互的中间件系统。在Wi-Fi无线网络下,该系统通过Socket的TCP协议,接受嵌入式设备访问数据库的指令并和数据库进行交互,将数据结果按照指定的格式存入txt文档中,压缩后传输给嵌入式设备,嵌入式设备解压后将数据存入SQLite数据库中;同时监听数据库中的信息更新情况,及时将更新消息发送给嵌入式设备。实验结果表明,该中间件系统解决了无线嵌入式设备与网络数据库通信的速度和实时性问题。Aiuning to solue the present problem of slow access speed and low real-time character when the wireless embedded medical devices interact with database, a middleware system is put forward, which make wireless embedded devices interact with database based on the SQLite and TCP protocol of the Socket technology. In Wi-Fi wireless network, the middleware system through the TCP protocol of the Socket receives the instructions of embedded devices access database and interacts with data- base, it saves the data into the txt document in the format specified, compresses and transmits to the embedded device, embed- ded devices decompress the data and save the data into SQLite database; the system also monitors the database information update, timely transmits updated message to the embedded device. The experiment proves that the middleware system can solve the speed and real time communication problem of wireless embedded devices with network database.

关 键 词：嵌入式设备 中间件 数据库 套接字 实时性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]