基于ARM+STM32的农田小气候数据采集器的设计

由于农田环境气候多变,使得实时采集农田气候要素信息成为难题.针对如何实时准确地采集农田气候要素信息的问题,应用嵌入式技术、传感器技术、电路电子技术、无线通信技术,设计了一套农田小气候数据采集器.采集器以ARM为主采集器控制核心,以STM32F103芯片为分采集器控制核心.采用高精度的模数转换芯片AD7793作为所有模拟信号的转换核心,保证气候要素采样的准确性.采集器具有GPRS无线传输功能和CF卡接口,能保证数据实时上传和长期存储.测试结果表明,采集器能够准确采集农田小气候要素信息.

Design of farmland microclimate data collector based on ARM and STM32

Because of the changeable environment and climate,it is difficult to collect the information of farmland climate factors in real time.In view of how to collect the information of climate factors in realtime and accurately,a set of farmland microclimate data acquisition system was designed based on embedded technology,sensor technology,electronic technology and wireless communication technology.The collector took the ARM as the main control core,and took the STM32F103 chip as the core of the sub control system.High precision analog to digital conversion chip AD7793 was used as the core of all analog signals to ensure the accuracy of the sampling of climatic factors.The collector offered GPRS wireless transmission function and CF card interface,which ensured the data real-time uploading and long-term storage.The test results showed that the collector could collect the farmland microclimate data accurately.