CAJ | 학술논문

在电机保护装置中,装置采集到的数据以及装置的工作状态等一系列信息需要实时地显示出来,如果采用液晶显示,虽然一屏能显示的信息会比较大,但也同时增加了装置的成本,如果采用4个独立的1位数码管,将会增加硬件连线的复杂度,占用大量的输入输出端口,造成硬件资源的浪费,基于以上原因,采用4位数码管不仅可以降低成本,还可以节省有限的硬件资源,利用视觉残留来实现数据的动态显示.通过该文以基于ARM7TDMI核的SEP3203嵌入式微处理器,以及Nucleus实时操作系统为例,阐述如何在电机保护装置中实现4位数码管动态显示.
재전궤보호장치중,장치채집도적수거이급장치적공작상태등일계렬신식수요실시지현시출래,여과채용액정현시,수연일병능현시적신식회비교대,단야동시증가료장치적성본,여과채용4개독립적1위수마관,장회증가경건련선적복잡도,점용대량적수입수출단구,조성경건자원적낭비,기우이상원인,채용4위수마관불부가이강저성본,환가이절성유한적경건자원,이용시각잔류래실현수거적동태현시.통과해문이기우ARM7TDMI핵적SEP3203감입식미처리기,이급Nucleus실시조작계통위례,천술여하재전궤보호장치중실현4위수마관동태현시.
In motor protection device, the information such as the data of the equipment and the working state of equipment must be displayed in real-time. LCD can display more information in one screen, but will increase the cost of the equipment. If using 4 independent LED nixietubes, the hardware of the equipment will be complicated and will occupy more I/O pins. Waste hardware resource. So using 4 bit LED nixietube can reduce the device cost and simplify the hardware design. Accomplish dynamic display by eye storage characteristic.The paper makes a brief introduction to complete dynamic display of 4 bit LED nixietubes using ARM7 SEP3203 microprocessor and Nucleus real-time operation system in motor protection device.