应急搜救系统数据通信平台设计与实现  

Design and implementation of data communication platform for emergency rescue system

作　　者：蒋凌云[1] 冯莹[1] 施明浩[1] 徐佳[1] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210023

出　　处：《江苏大学学报（自然科学版）》2016年第3期302-308,共7页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(61472193;61572261);江苏省科技支撑计划(社会发展)项目(BE2013666);江苏省自然科学基金资助项目(BK20141429);江苏省普通高校研究生科研创新计划项目(CXLZ12_0482);江苏省高校自然科学研究重大项目(14KJA520002);连云港市社会发展计划项目(SH1306)

摘　　要：针对无通讯基础设施的应急搜救场景,在Android平台下设计并实现了数据通信平台.该平台提供了Ad Hoc、Wi-Fi热点轮换和传统Wi-Fi 3种网络连接策略,实现基于非阻塞式Socket通信模式,设计了数据移交的轻量传输模式和长数据传输模式,使数据移交针对速度、便捷、稳定等不同需求智能选择2种经优化的数据传输方式.试验结果表明:Ad Hoc组网连接和Wi-Fi热点轮换接入成功率为100%;非阻塞式Socket通信在少量并发数据的近距离传输成功率为100%,在远距离大量并发数据传输成功率为90%.轻量传输模式比传统的UDP传输模式的传输成功率提高了5%,长数据传输模式在保证高速传输且不出现严重抖动等异常情况下,传输成功率达到100%.数据通信平台能够为应急搜救提供稳定、健壮的数据通信服务.A data communication platform was designed and implemented on Android platform for emergency rescue scenario without communication infrastructure. The Ad Hoc, the Wi-Fi hotspot rotations and the Wi-Fi network connection strategies were provided by the communication platform. Two transmission modes of light transmission mode and long data transmission mode were designed based on non-block Socket communication technique. The two transmission modes can be adopted intelligently according to different requirements of speed,convenience and stability. The experimental results show that the network connection access rates of Ad Hoc and Wi-Fi hotspot rotation are 100%,and the transmission success rate of non-block Socket communication is 100% for a small amount of concurrent data transmissions with short communication distance. The transmission success rate is 90% for a large number of concurrent data transmissions with long communication distance. Compared with traditional UDP transmission mode,the transmission success rate of light transmission mode is improved by 5%.The transmission success rate of long data transmission mode is 100%,which can provide high speed transmission without serious transmission jitter and other unusual circumstances. The proposed datacommunication platform can provide stable and robust data communication for the scenario emergency rescue.

关 键 词：通信协议 灾难 搜救 智能手机 安卓系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]