Research Center of Internet of Things,China University of Mining and Technology

为实现井下受灾区域的无线网络覆盖和应急通信,研究应急网络的拓扑重构和数据传输相关问题。首先,提出基于Wi-Fi Direct的应急网络重构方案,并将应急数据流分为上行、网内和下行数据流三类。针对上行数据流,提出基于时延的服务区分机制,使受损严重的终端能在信息获取能力丧失前将感知信息传送至安全终端。由于相邻被困矿工通常需要相同的救援信息,针对网内和下行数据流提出基于无线组播的能耗节省方案,延长网络的救援支撑时间。所提出的应急网络与现有的监控网络具有功能互补性和协议兼容性,将为煤矿井下作业提供更高的安全保障。

In order to realize wireless network covered and emergency communication in the underground mine disaster,a study was conducted on the topology recons truction and data transmission problems in the emergency network,emergency network reconstruction plan was provided based on Wi- Fi Direct and the emergency data flo W was divided into uplink data flow,internal network data flow and downlink data flow. According to the uplink data flow, based on a time delay,a sub- mechanism of the servi ce zone was provided and the serious damaged terminal before the collection capacity of the information lost could send the perception information to safety terminal. Due to the adjacent miners in difficulty generally needed the same rescue information,according to the internal network and downlink data flow,an energy saving plan was provi ded based on wireless multicast and the rescue and support time of the network was expanded. The emergency network and available monitoring and control network shou Id have the functional complementation and protocol compatibility in order to provide higher safety protection to the operation in the underground mine.

国家高技术研究发展计划(863计划)资助项目(2013AA06A411)；江苏省自然科学基金资助项目(BK2012141)；国家留学基金委公派博士后资助项目(2900759643)；中央高校基本科研业务费专项资金资助项目(2011QNB26)；