This paper describes the design based on the ultrasonic transmitter and receiver technology for the protection of multi-functional vision. Practice has proven through the vision Protection feasible good reliability and convenient. In this paper, and hope that through the electronic hardware production and theoretical research, for the latter part of the further design multifunctional vision for the protection and take reasonable measures to enhance the effectiveness of protection vision to provide reliable and effective source of data and information based.
Keywords: Sensor alarm light intensity alarm timer c language Ultrasonic
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