Infrared remote control appliances and classification

1) Infrared remote control is widely used in various electrical appliances. Its main feature is that it does not affect the surrounding environment and does not interfere with Other Electrical Equipment. There are many ways to implement a multi-channel infrared remote control switch, such as a pulse coding code division system and a frequency division system with different frequencies. The frequency division system has the advantages of simple structure and easy implementation. It is very suitable for amateur production and can be widely used in homes, entertainment, offices and other places.

2) With the development of science and technology, more and more rhyme modern appliances (audio, television, air conditioners, water heaters, computers, microwave ovens) have become a necessity for people's lives. The use of these appliances often depends on the remote control. Since the infrared rays have a linear propagation characteristic and the wavelength of the infrared rays is much smaller than the wavelength of the radio waves, when the infrared remote control method is adopted, it will not interfere with the normal operation of other electrical appliances and will not affect the adjacent radio devices. According to the different objects and functions controlled, infrared remote control appliances can be divided into the following types:

1 electrical switch control class. Specifically include lights, electric fans, heaters, electric water heaters and so on.

2 infrared remote sensing. Infrared remote sensing control objects include televisions, air conditioners, cameras, remote control curtains, and the like.

8 appliance program control class. Can be divided into timing control, program mutual control and analog control. Specific include rice cookers, electric ovens, washing machines and so on.

3) Infrared remote control is characterized by: does not affect the surrounding environment, does not interfere with other electrical equipment, because it can not penetrate the wall, so household appliances in different rooms can use a universal remote control without mutual interference; circuit debugging is simple, as long as According to the correct connection of a given circuit, generally do not need any debugging can be put into work; editing, decoding is easy, can be multi-channel remote control.

The infrared remote control terminal should have the following functions:

1) With the learning function of infrared remote sensors for home appliances, several remote sensing remote commands can be learned.

2) The terminal may be controlled to issue any infrared instruction in a variety of ways.

3) The expansion of system functions can be achieved by attaching various functional modules.

The electrical intelligent control system is mainly used to realize various intelligent control of various remote, timing, scene linkage, universal infrared remote control and the like of the electrical appliances. Traditional electrical appliances exist in individual forms, and the smart electrical control system is a management system that integrates all electrical appliances that can be controlled. In addition to the universal remote control of local and remote infrared appliances, it can also use wireless remote control, a key scene, and sensing. Various control methods such as control, timed event management, telephone remote, and internet computer remote control realize intelligent management and control of electrical appliances.

In addition to the power supply of general infrared home appliances, infrared remote controllers are also required to perform various infrared switch controls and adjustment controls, such as television switches, channel adjustments, volume adjustments, etc., as well as the on/off, playback, and pause of DVDs. , stop, fast forward, retreat, warehouse, etc. For infrared home appliances, this type of control generally uses a learning type infrared transponder. It can learn the infrared instructions of various electrical appliances and realize infrared control of such appliances.