摘要
为了能够在车速变化时保持地铁闪字牌按照正常比例呈现图像内容。文中提供了一种通过C语言程序计算出紧随车速变化而自动调整的扫描指令间的时间间隔,将速度传感器测出的速度参数加入到程序的计算公式中,程序就可以自动计算出保证图像正常长宽比例的扫描指令时间间隔T=1/(32*Spd)秒。T紧随速度Spd变化而不断变化,在车速变化时地铁闪字牌按程序执行扫描就可以保持图像比例无失真。
In order to keep the image content of the subway flash card in normal proportion when the speed changes. This paper provides a C language program to calculate and automatically adjust the time interval between the scan code,the speed value get from thespeef sencor join the program calculation formula,the program can automatically calculate the right value of time interval T=1/(32*Spd)second to guarantee normal ratio of the image. By running a program that consistently produces results in response to speed changes,the subway flash CARDS can keep image proportional coordination without distortion when speed changes.
作者
李劭毅
唐鹏
王晓明
王磊
隋开鹏
王跃
庞国勇
LI Shao-yi;TANG Peng;WANG Xiao-ming;WANG Lei;SUI Kai-peng;WANG Yue;PANG Guo-yong(STATE GRID Gucheng Power Supply Company,Gucheng 441700,China)
出处
《电子设计工程》
2019年第7期20-23,28,共5页
Electronic Design Engineering
关键词
C语言程序
时间间隔
帧
视觉暂留
C programe
time interval
frame
temporary sight-holding
作者简介
李劭毅(1981—),男,湖北襄阳人,助理工程师。研究方向:电气工程。
