Infrared remote control vision automatic measuring device and testing device
An infrared remote control and automatic measurement technology, which is applied in the fields of eye testing equipment, medical science, diagnosis, etc., can solve the problems of unable to prevent subjects from memorizing vision charts, the test results are easily affected by the subjective influence of doctors, and increase the workload of doctors. , achieve the effect of eliminating the interference of human guessing and input errors, having a wide range of measurable vision and strong repeatability
Inactive Publication Date: 2012-06-20
ARMY MEDICAL UNIV
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[0002] When using the standard eye chart to measure visual acuity, the doctor points out a certain visual target, the subject judges the direction of the visual target, and judges the subject's visual acuity by judging whether it is correct or not. This method increases the workload of the doctor. The results are easily influenced by the doctor’s subjectivity, especially when large-scale physical examinations are performed, and the efficiency is low; the direction of each optotype on the standard eye chart is fixed, which cannot prevent the subjects from memorizing the eye chart in advance
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[0030] The present invention will be further described below in conjunction with drawings and embodiments.
[0031] Infrared remote control visual acuity automatic measuring device, it includes
[0032] Remote control, used for subjects to input test answers and identification ID numbers, and send them out through infrared waves;
[0033] The infrared receiving head is used to receive the infrared wave sent by the remote control, and to amplify, detect and shape the received signal;
[0034] The single-chip microcomputer is used to receive the signal processed by the infrared receiving head and decode it into a signal that can be recognized by the host computer;
[0035] The upper computer is used to display randomly generated test visual targets, receive the signal sent by the single-chip microcomputer, judge whether the subject's answer is correct, and count and display the measured visual acuity degree of the subject.
[0036] Such as figure 1 As shown, the subject respo...
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The invention relates to the field of vision automatic measurement, in particular to a remote control vision automatic measuring device and a testing method. The automatic measuring device comprises a remote controller, an infrared receiver, a single chip microcomputer and an upper computer. The testing method includes steps: 1) inputting an identification ID number; 2) inputting the direction of a tested one-level sighting target via the remote controller; 3) judging whether results are correct or not and carrying out statistic records; 4) completing a test process; and 5) checking effectiveness of the test process and outputting test results. The infrared remote control vision automatic measuring device is simple in structure, low in cost and stable in work, and realizes automatic measurement, the measurement method does not need doctors in the measurement process, the measurement results are accurate, and workload of the doctors is greatly reduced.
Description
technical field [0001] The invention relates to the field of automatic vision measurement, in particular to a remote-controlled automatic vision measurement device and a testing method. Background technique [0002] When using the standard eye chart to measure visual acuity, the doctor points out a certain visual target, the subject judges the direction of the visual target, and judges the subject's visual acuity by judging whether it is correct or not. This method increases the workload of the doctor. The results are easily influenced by the doctor’s subjectivity, especially when large-scale physical examinations are performed, and the efficiency is low; the direction of each optotype on the standard eye chart is fixed, which cannot prevent the subjects from memorizing the eye chart in advance. In view of this, when this system is tested, the computer randomly gives an optotype for the subject to judge each time. The subject judges the direction of the visual target through...
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IPC IPC(8): A61B3/032
Inventor 庞剑飞宋文强张明伟蔡军杰齐刚乔梁
Owner ARMY MEDICAL UNIV