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微计算机系统由单板机及A/D转换、扩展接口(三块8255A)、计数器8253A、μ80宽行打印机、等离子体大屏幕显示终端等外设组成。该系统对检测头给出的瞬时的、随机的一次性电信号,进行实时采集、运算处理、计数,并计算出乒乓球旋转速度和旋转一周所用的时间。能对人—机(发球机)对打进行实时检测,统计出各种转速的百分比,由打印机打印出转速及统计表格,并推动大屏幕终端实时地显示出每一个数据。
Microcomputer system consists of single board computer and A / D conversion, expansion interface (three 8255A), counter 8253A, μ80 wide line printer, plasma large screen display terminal and other peripheral components. The system for the head given the instantaneous, random one-time electrical signals, real-time acquisition, calculation, counting, and calculate the ping-pong rotation speed and rotation time spent one week. Can people-machine (ball machine) hit the real-time detection, statistics of the percentage of various speed, printed by the printer speed and statistical tables, and to promote large-screen terminal to display each data in real time.