Infrared light waves are also called infrared light waves. In the electromagnetic spectrum, the wavelength range of light waves is 0.01um ~ 1000um. according to the wavelength, it can be divided into visible and invisible light. Light waves with wavelength 0.38um ~ 0.76um can be visible light, followed by seven colors: red, orange, yellow, green, cyan, blue and violet.
The use of near-infrared light source as a remote control light source, because infrared transmitter devices (infrared light-emitting tubes) and infrared receiver devices (photodiodes, transistors and photocells) of light emission and light reception of the peak wavelengths are generally in the range of 0.8 μ m to 0.94 μ m, in the near-infrared wavelengths of the light band, the spectra of the two devices coincide with the spectrum of the two devices, which can be very well matched to obtain high transmission efficiency and high reliability.
Infrared, also known as non-contact control technology, has a strong anti-interference ability, reliable information transmission, low power consumption, low cost, easy to realize and other significant advantages, is widely used by many electronic devices, especially household appliances, and increasingly used in computers and cell phone systems. The infrared remote control technology term remote remote control technology is also known as remote control technology, refers to the realization of the remote control of the controlled target, in the field of industrial control, aerospace, home appliances are widely used.
Our daily access to infrared remote control, such as the remote control of the TV, air conditioning remote control, as well as many set-top boxes, DVD players are used to realize such technology! The principle of this technology is relatively simple, infrared remote control does not have the radio remote control as through the obstacles to control the ability of the controlled object. So he is a straight line transmission route, as a child you will find that if someone moves the remote control of the TV, as long as someone in front of the block can not be operated!
Infrared controller is a wireless remote control device used to remotely control electronic devices. It can send command signals through infrared rays to devices such as TVs, air conditioners, stereos, etc., so as to control their on/off, volume, channel, mode, and other functions. The infrared controller can conveniently control multiple devices, allowing users to accomplish the operation of multiple devices on one remote control, making home entertainment more convenient and comfortable. In addition to home use, infrared controllers are also widely used in smart home, medical equipment control, industrial automation, robot control and other fields.