?Industrial remote controls and receivers are a set of remote wireless control devices, mainly used in metallurgy, shipbuilding, containerterminals, warehousing, machinery manufacturing, chemical industry, paper making, construction, fire fighting, and engineering machinery and other industries to achieve remote control of engineering machinery or industrial equipment. The remote control, as a handheldoperation terminal, sends encoded signals; while the receiver is another important part of this system, usually composed of amplifiers,demodulators, and controllers. Its main task is to receive radio waves from the antenna and decode them to achieve control operationsof the equipment.