Intelligent Vision Tester Based on Embedded System

Abstract:

To solve the problem that artificial visual acuity measuring efficiency is low in hospital and school,and waste of resources,this design introduces an intelligent vision test instrument.The instrument is controlled by Embedded system [1,2], including the power supply circuit, a wireless remote control circuit module,LED display circuit,digital display circuit,a voice circuit etc.Beginning of vision test after audio prompt.This time the LED random light under every line in the standard visual acuity chart.The test selects the direction of wireless remote control rocker of "up", "down", "left", "right"through the "E" the opening direction on standard visual acuity chart.Data is transmitted to the Embedded system,after data processing,to judge whether he is right and wrong,and then displayed.Intelligent vision testing instrument can achieve the anticipated goal,finally complete the design and production, The overall structure of the circuit device is simple, stable performance, the test results meet the requirements.

• Periodical: Advanced Materials Research (Volumes 971-973)
• Pages: 1234-1237
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.971-973.1234
• Online since: June 2014
• Authors: Xue Feng Yang*, Li Gang Chen
• Keywords: Embedded System, Vision Test, Wireless Remote Control

References

[1] Z.H. Jiang: Principle and application of single chip microcomputer(Electronics industry Press, china 2005).

[2] J. Zhou: Singlechip C language easy entry(Beijing University of Aeronautics and Astronautics Press, china 2006).

[3] Y.N. Wang: Intelligent technology of Intelligent Control Engineering(Science Press, china 2004).

[4] X.S. Jiang: Intelligent technology and industrial automation(Hebei Education Press, china 2003).

[5] Y. Huang: Voice in the use of singlechip system(People's Posts and Telecommunications Press, china 2008).