基于无线传感网的楼宇环境监测系统设计

Design of building environment monitoring systems based on wireless sensor network

为满足楼宇环境监测系统低成本、部署方便等要求,设计了一种层次型结构的无线传感网实现对楼宇环境数据的收集工作.首先阐述系统中传感器节点与汇聚节点的硬件设计,然后,根据楼宇监测的应用背景,设计一种基于IEEE802.15.4/ZigBee协议模型的自组织、低功耗的无线传感网数据收集协议,不仅可以实现上行感知数据的传输,还可用于下行配置参数的传输.最后,实地部署和测试结果表明,系统在数据采集、在线监测和数据管理与分析等方面已达到了设计要求.

To meet the requirements of low cost and convenient deployment from the building environment monitoring systems, a hierarchical wireless sensor network is designed to gather building environment data. Firstly, the hardware designs of sensor node and cluster node are explained. Then, a self-organization and low-power data collection protocol in wireless sensor networks specified for building monitoring is proposed, which is based on the IEEES02. 15.4/ ZigBee protocol stacks. The proposed network could, deliver both uplink sense data and configuration parameters with downlink data. Finally, the in situ deployment and testing results show that the system achieves the application requirements well in the aspects of data collection, on-line monitoring, data management and analysis.