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来源：百度知道 编辑：UC知道 时间：2024/05/21 17:19:15
通过对Modbus RTU模式协议的了解，设计一个无线数据采集系统下位采集节点，采集节点能接收温度传感器的输出信号，能接收、回复无线数据采集控制器的信息帧，上传实时检测温度参数；无线数据通信接口采用NRF2401。检测通道数四路。信息帧格式采用Modenbus协议帧格式。本设计采用了主控制器AT89C51和数字温度传感器DS18B20，显示采用了MAX7219芯片。
Through the agreement Modbus RTU mode of understanding the design of a wireless data acquisition system collected nodes, Acquisition nodes will receive temperature sensor output signal can receive, reply to wireless data acquisition controller information frame, Upload Real-time detection of temperature parameters; Wireless data communication interface used NRF2401. Four-channel detection. Information frame format used Modenbus agreement frame format. Designed with the main controller AT89C51 Digital Temperature Sensor, MAX7219 shows that using the chip