利用USB接口技术,采用USB模块CH375,在加速器核辐射监测系统中实现了多个探测通道USB接口与计算机通信。给出了CH375与单片机接口电路的原理简图,并详细介绍了实现多通道USB数据传输的上、下位机的程序设计。 关键词:USB接口,加速器,核辐射监测系统,多通道 Abstract: Making use of USB technology, adopting USB module CH375, realizing communication between USB interface of many detection channels and computer in accelerator nuclear radiation monitoring system. This paper showed the interface circuit principle diagram about connecting CH375 to chip microprocessor, and introduced procedure design of the host and slave computer which carry out Multi-channel USB data translation in detail. Key words: USB interface , Accelerator , Nuclear Radiation Monitoring System , Multi-channel