由于救灾现场情况的多变特性,根据消防救灾的工作需要,设计了一种基于ZigBee的传感器网路。完成了传感器网络中监控中心和各个节点的设计,设计并编写了软件,实现了所需要的功能。最后进行实验检测了在不同通信距离段的通信效果和RSSI的值,实验证明该装置通信效果较为良好,室内的穿墙距离可达100～150 m,室外可达300 m。并且不同距离RSSI的实际值和实验采用的理论模型比较接近。该装置具有一定的实用价值。 Due to the changing characteristics of the scene of disaster relief, a sensor network based on ZigBee is designed according to the work of fire disaster relief. Completed the design of the monitoring center and each node in the sensor network, designed and prepared the software and realized the required functions. Finally, experiments were carried out to test the communication effects and RSSI values ​​in different communication distance segments. Experiments show that the communication effect of the device is good, the indoor penetration distance of the wall can reach 100-150 m and outdoor can reach 300 m. And the actual value of RSSI at different distances is close to the theoretical model used in the experiment. The device has a certain practical value.