| It is introduced that the exploiting background of visual programming ;In order to makeprotection-engineers free from complex and fussy language-programming, a newprogramming method is put forward to implement microcomputer protection — visualprotection . The idea of visual protection is getting protection logic figure, building graphprogram, running and loading down to hardware platform . To select appropriate algorithmssatisfy the requirements of the definite engineering. A new visual platform function andcharacteristic — high efficienty, reliability, flexibility and opening is introduced .In addition,the configuration ,function ,traits of protection system of the visual platform and theprotection components are dwelled on. An application example of directional overcurrentprotection with undervoltage–locked is used to illustrate the feasibility and superiority of thevisual programming method in microcomputer protection, and the visual programmingmethod is compared with the general programming method .The conclusion derived from thispaper is that the visual programming is significant in micro-protection and makes theimplement of micro-protection easier , more flexible and reliable .
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