Infrared alarm

Abstract

The invention discloses an infrared alarm which comprises a power supply for supplying power, an infrared sensor, a signal amplifying circuit, a controller, a sound-light alarming circuit and an alarm body. The power supply is sequentially connected with the infrared sensor, the signal amplifying circuit, the controller and the sound-light alarming circuit. The sound-light alarming circuit is connected with the alarm body. When a human body is arranged in an infrared sensor induction range, the infrared sensor obtains induction signals and transmits the induction signals to the controller through the signal amplifying circuit. The controller controls the sound-light alarming circuit to trigger the alarm body to conduct alarming. After the human body enters the induction area range, the signals are transmitted after induction is conducted for a period of time continuously to trigger the sound and light alarm, and the problem that eye fatigue and impaired vision caused by long-time watching of an electronic device screen is solved. The infrared alarm helps users to watch at an appropriate distance, can cut off the power supply automatically, reminds the users to be at the appropriate distance in real time, has user-friendly design and provides beneficial help for protection of the vision.

Description

technical field [0001] The invention relates to an infrared alarm. Background technique [0002] With the development of science and technology, electronic devices such as computers and televisions have also been continuously developed, and people's lives are inseparable from these electronic devices. Due to the popularization of electronic equipment, people often spend a lot of time on it, such as watching TV and playing computer games. At present, many people often stare at the screen of electronic equipment for a long time, which makes their eyes tired and easily affects their eyesight. Especially children like to watch TV or computer at close range for a long time, which will cause great damage to their eyes. Because children are usually very active, Without the care of family members, it is difficult to grasp the appropriate distance from the TV or computer, which will damage children's eyesight. Therefore, the distance between people and electronic devices cannot be m...

AI Technical Summary

Problems solved by technology

At present, many people often stare at the screen of electronic equipment for a long time, which makes their eyes tired and easily affects their eyesight. Especially children like to watch TV or computer at close range for a long time, which will cause great damage to their eyes. Because children are usually very active, Without the care of famil...

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