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With the continuous development of society, technology and technology are constantly improving. Nowadays, wireless remote control switches are widely used in every corner of our daily life. For example: homes, hotels, shopping malls, hospitals, warehouses, offices and other places for lighting lighting control and Other uses of electrical control, I believe that everyone is not unfamiliar with the wireless remote control switch, but most people do not understand the working principle of the wireless remote control switch, the following Xiaobian on the infinite remote control switch specific introduction, I hope everyone has a reference.
Wireless remote control switch - function
Before understanding the principle of wireless remote control switch, let us first understand the function of the wireless remote control switch. The wireless remote control switch adopts radio frequency identification technology in design and production, has no directionality, and will not cause any influence and interference with other products of the same model, and has high Confidentiality, stable performance, low power consumption, large storage capacity, easy to use, allowing lamps to be turned on at the same time or individually, switches and remote controls do not have to be purchased, users are free to choose, low bit error rate, and strong anti-interference ability.
Wireless remote control switch - advantage
Wireless remote control switch installation is very simple and convenient, no need to connect the zero line, no need to make any changes to the lighting and electrical appliances, can directly replace the original switch, after the power outage call, the switch will automatically shut down, to avoid wasting unnecessary power , You can centrally control all the family's smart remote control switch. In terms of style design is also a wide variety, available for a wide range of options, can be combined with wireless remote control switch and traditional mechanical switch, convenient and simple.
Wireless remote control switch - principle
The wireless remote control switch is composed of a combination of a transmitter and a receiver. The transmitter encodes the controller's control button and modulates it into a radio frequency signal to transmit a wireless signal. It can also be said to be an encoder. The receiver decodes the received wireless signal and then decodes it to obtain the signal corresponding to the control button, and then controls the corresponding circuit to work. It is also referred to as a decoder. With the advancement of science and technology, wireless remote control switches have been widely used in industrial control and wireless smart home fields.
Wireless remote control switch - classification
Due to the variety of types and functions of wireless remote control switches due to scientific and technological advancement, the carriers according to the transmission control command signals can be divided into: radio remote control, ultrasonic remote control, and infrared remote control. According to the different signal coding modes, frequency coding and pulse coding can be divided into: The number of transmission channels can be divided into: multi-channel remote control and single channel. According to the number of instructions that can be transmitted at the same time can be divided into: single and multiple remote control, the control technology of the controlled target according to the command signal can be divided into: switch type Proportional remote control.
Wireless remote control switch - composition
Every day, the commonly used wireless remote control switch consists of two parts: transmit and receive. The principle of wireless remote control switch is also analyzed according to launch and receive. The transmitter part is the remote controller and the transmitter module. The remote controller is used as a complete machine to be used independently. There are wiring pile heads externally, and the remote control module is used as a component. The receiving part is the superheterodyne and super regeneration receiving mode. Regenerative demodulation circuit It is actually a regenerative detection circuit operating in intermittent oscillation.