25-06-2014 дата публикации
Номер: CN103888994A
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The invention provides a multi-gateway processing method with a thermal disaster recovery capability and a system. The method comprises steps: step 1, an energy threshold or a data flow congestion threshold is calculated, a non-congestion threshold is obtained according to the calculated congestion threshold, a main gateway carries out energy or data flow threshold judgment regularly, and if the energy or data flow meets the performance requirement of the main gateway, the current state is maintained, if not, step 2 is carried out; step 2, the main gateway sends a gateway switching request to a candidate gateway, and the candidate gateway sends a gateway switching command to a node in a wireless sensor network (WSN) after receiving the gateway switching request; and step 3, the node carries out router switching according to the command, and the next hop node turns to the candidate gateway. According to the method and the system, defects of single gateway in the existing WSN system can be ...
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