中文摘要：

C8051F320是Cygnal公司开发的一款USB微控制器芯片，该芯片具有较快的处理速度和较大的存储容量，并且具有在线系统可编程的功能，给USB接口设计带来很大方便。介绍了一种基于C8051F320的USB接口的便携式睡眠生理参数采集系统，以及如何使用C8051F320来实现USB接口的实时数据采集，在实际应用中取得了较好的运行效果。

英文摘要：

C8051F320 is a kind of USB microcontroller that is designed by Cygnal Inc. It is characterized by greater processing speed,larger memory capacity and Isp function,which brings large facility in the field of designing USB interface. In this paper, a portable box of sleep parameter acquisition box based on the USB interface and how to use it to realize real time data collection are introduced, and this system has produced a wonderful effect in application.