为解决低功耗蓝牙(BLE)组网中基于星型拓扑结构不能支持多跳和基于Mesh的散射网路由和调度算法比较复杂的问题,提出三层结构的BLE树型结构的协同网络构建.基于时间轮询和时分双工系统(TDD)模式实现微微网内部的通信和所有中间节点主从角色定时转换;增加特征值CHAR6,解决特性值长度不足的问题.通过真实的实验分析该网络,实验结果表明,该网络能够有效地实现根节点对终端设备的读写.%Bluetooth low energy (BLE) network based on star topology can not support multiple hops and Mesh network's routing and scheduling algorithms are more complex.To solve the problems,a collaborative network architecture containing three layer BLE tree structure was presented.Based on polling time and time division duplex (TDD) system model,the piconet internal communications and all intermediate nodes' master-slave role transformation were realized regularly.Increasing the CHAR6 value solved the problem that the length of property values is insufficient.The network was tested based on real experiment.Results of the experiment show that the network can effectively realize the reading and writing of the root node for the terminal equipment.
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