说明：  本实验的内容是无线楼宇数据传输仿真，分析915M的楼宇通信特性，建立楼宇数据通信系统的仿真模型，采用无线收发芯片NRF905，依据其性能参数来判断楼宇内两点能否进行数据传输
(the contents of this experiment is building wireless data transmission simulation, analysis 915M communications characteristics of the buildings, establishing building data communications system simulation models, the use of wireless transceiver chip NRF905. based on its performance parameters to judge whether two buildings for data transmission)