基于单片机的视力保护器设计

准阴师范学院毕业设计Abstract This paper presents a multi-function vision protector based on single -chipmicrocomputer.The hardware circuit and software design of 89C51 single chip microcomputerare discussed.On the basis of this hardware,the sensor alarm circuit,light intensity alarm circuitand timing alarm circuit are realized.At present,the theory of SCM control and the design ofpractical application system are attracting more and more attention.Mainly for the generalsituation of the development situation and the development of the vision protector MCU,and by89C51 to control circuit and use the C programming language,as well as the use of single-chiptiming function implementation timing method.The principle and design of the whole systemsoftware flow chart and part molecular program flow chart are given.The application prospectand popularization value of this technology are introduced.This design is based on ultrasonictechnology.Specifically,the theory and hardware design of the vision protector are studied.Keywords:single chip microcomputer,Ultrasound,Eye protection目录2