说明：  由单片机测量风扇转速，将数据传给LabVIEW处理，由LabVIEW波形图表显示实时转速，并且可以由LabVIEW向单片机发送数据控制风扇转速（串行通讯）
(The fan speed is measured by the single chip microcomputer, and the data to the LabVIEW processing, by LabVIEW waveform chart shows real-time speed, and can be controlled by LabVIEW to send data to control the fan speed (com))