感知端(节点端)由树莓派和硬件组成:
- 硬件负责初始化传感器和采集传感器数据，同时响应串口中断，回应数据；
- 树莓派作为一个中间件，采用java和c混编，一面采用Socket与服务器交换数据，另一面通过433Mhz无线模块与硬件进行实时通信
.jpg "效果图")
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