Non-contact multi-channel key control switch and keyboard

The invention relates to a non-contact control switch and a system operating keyboard, which realize multi-key, multi-channel and accurate intelligent operation through fingertip non-contact induction, prevent bacteria and viruses from spreading, and never wear. At present, control and operation of control systems of various types of electrical equipment are completed by means of switch keys or keyboard keys through finger pressing or touch sliding, such as an electrical appliance remote controller and a lamp switch at home, and an elevator and a bank ATM. The traditional operation can cause surface wear and fingerprint contamination. The electrical equipment at public places such as air conditioner, fan, lamplight and elevator operating buttons as well as a password input keyboard of the bank ATM are cross-spreading carriers of various kinds of epidemics, bacteria and viruses. Moreover, all the traditional key switches or control keyboards at present have the inevitable fatal disadvantages of mechanical wear