The system contains a diagnosis program which is written in C language on a 8051 processor.It uses FFT and PSD to analyze the lung sound signals in order to detect wheeze.

• 软体部分则利用C语言撰写数位随身听的类8051处理器，使用快速傅立叶转换及功率频谱密度等分析方法作喘鸣音的侦测。