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智能无线控制视力测量系统的设计与实现

Design and Implementation of a Smart Wireless Controlled Visual Acuity Measurement System.

作者信息

Vafaie Mohammad Hossein, Ahmadi Beni Ebrahim

机构信息

Medical Image and Signal Processing Research Center, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

出版信息

J Med Signals Sens. 2023 Aug 31;13(4):307-318. doi: 10.4103/jmss.jmss_38_22. eCollection 2023 Oct-Dec.

DOI:10.4103/jmss.jmss_38_22
PMID:37809013
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10559300/
Abstract

In this article, a smart visual acuity measurement (VAM) system is designed and implemented. Hardware of the proposed VAM system consists of two parts: a wireless remote controller, and a high-resolution LCD controlled through a Raspberry-Pi mini-computer. In the remote controller, a 3.5" graphical LCD with a touch screen is used as a human-machine interface. When a point is pressed on the touch screen, the unique identifier (ID) code of that point as well as its page number is transmitted to the Raspberry-Pi. In the Raspberry-Pi, data are received and processed by a smart application coded in visual studio software. Then, the commanded tasks are executed by the Raspberry-Pi's operating system. Numerous charts, characters, and pictures are stored in the proposed VAM system to provide various VAM options while the size of the optotypes is adjusted automatically based on the distance of the patient from the LCD. The performance of the proposed VAM system is examined practically under the supervision of an expert optometrist where the results indicate that visual acuity, astigmatism, and color blindness of patients can be examined precisely through the proposed VAM system in an easier and more comfortable manner.

摘要

在本文中，设计并实现了一种智能视力测量（VAM）系统。所提出的VAM系统的硬件由两部分组成：一个无线遥控器和一个通过树莓派微型计算机控制的高分辨率液晶显示器。在遥控器中，一个带触摸屏的3.5英寸图形液晶显示器用作人机界面。当在触摸屏上按下一个点时，该点的唯一标识符（ID）代码及其页码会被传输到树莓派。在树莓派中，数据由用Visual Studio软件编写的智能应用程序接收并处理。然后，命令任务由树莓派的操作系统执行。在所提出的VAM系统中存储了许多图表、字符和图片，以提供各种VAM选项，同时视标大小会根据患者与液晶显示器的距离自动调整。在所提出的VAM系统的性能在专业验光师的监督下进行了实际检验，结果表明，通过所提出的VAM系统，可以以更轻松、更舒适的方式精确检查患者的视力、散光和色盲情况。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/55d0/10559300/2d820c1765a8/JMSS-13-307-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/55d0/10559300/ec4d09728c8f/JMSS-13-307-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/55d0/10559300/e7597fe89adb/JMSS-13-307-g008.jpg
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