系统中采用温度传感器AD590实现温度信号采集，采集的温度信号通过ADC0809实现A/D转换后输入远端单片机进行处理并通过RS-485接口传输至近端单片机并在近端完成测量结果的显示以及键盘控制实现通道选择等功能-Temperature sensor system using AD590 temperature signal acquisition, the temperature signal acquisition ADC0809 to achieve A/D conversion single-chip for processing the remote input and RS-485 interface through the transmission to the proximal and proximal to complete single-chip measurement results display and keyboard control features such as channel selection to achieve