采用磁带记录技术、单片机控制技术、GPRS(General Packet Radio Service,通用分组无线业务)无线通信技术、Internet网络对雷电信息进行采集与传输,最后由雷电信息监控中心进行处理,最终实现雷电定位及雷电参数测量等功能,这是一种比较...采用磁带记录技术、单片机控制技术、GPRS(General Packet Radio Service,通用分组无线业务)无线通信技术、Internet网络对雷电信息进行采集与传输,最后由雷电信息监控中心进行处理,最终实现雷电定位及雷电参数测量等功能,这是一种比较经济的雷电信息监测系统的方案设计。展开更多
This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, read...This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, reading the key value, interruption service, reading file and displaying file. In order to strengthen the commonality and practicability of the system, SD card is used to store the materials and the ZNFAT32 file system is transplanted to organize the materials in the form of file directory. This interactive system can recognize and perform music automatically for the users and play significant role in education and entertainment.展开更多
文摘This paper introduces an interactive system of sight-singing and ear-training which combines the technology of single chip microprocessor (SCM) with learning music. It contains the functions of scanning keyboard, reading the key value, interruption service, reading file and displaying file. In order to strengthen the commonality and practicability of the system, SD card is used to store the materials and the ZNFAT32 file system is transplanted to organize the materials in the form of file directory. This interactive system can recognize and perform music automatically for the users and play significant role in education and entertainment.