Safe Distance Detector to Watching Television

摘要

Most people in the world have the habit of watching television, sometimes watching television can be a necessity for the community and some people assume that watching television at home can improve their quality of life. But being too close to watching television is not good for eye health because the eyes focus on the television, so the eye muscles will become tense. This is what can cause a decrease in eye function, especially watching in a dark room. The risk of eye pain is much greater. This is a problem that occurs in our environment so there needs to be equipment or detectors that can inform the safe distance for watching television. The purpose of this study is to produce detectors that can inform the safe distance of watching television. The detector has been designed consisting of a motion sensor (PIR sensor) that detects moving objects (humans), proximity sensors (ultrasonic sensors) detects a safe distance to watch television, the keypad to enter the diagonal size of the television screen, LCD to display safe distance and the bell produces sound if the distance is not safe to watch television. Test results show that this detector can work well to inform safe or unsafe distances when someone is watching in front of the television. This detector is ready for use in the community to prevent damage to the eyes.