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  • Human body sensing switch three wire connection radar sensor working principle

    2023-12-07 462

    I. Introduction


    The human body sensing switch is a kind of equipment which realizes automatic control by using radar sensing technology. It is widely used in various places, such as families, offices, public Spaces, etc., providing convenience for people's life and work. This article will introduce the working principle of three-wire radar sensor with human body sensing switch in detail to help people better understand and use this equipment.

    飛睿智能

    Second, overview of human body induction switch


    Human sensing switch is an automatic control device based on microwave technology. It detects human movement by transmitting and receiving radar signals, thus realizing the function of switching. The switch has the advantages of fast reaction speed, high sensitivity and strong reliability, so it has been widely used in many fields.


    Third, the working principle of radar sensor


    Radar sensor is a kind of equipment that uses microwave technology to detect and control. It detects the presence and position of target objects by transmitting high-frequency microwave signals. When a human body or other object enters the detection range of the radar sensor, the microwave signal is reflected back and picked up by the sensor. By processing and analyzing the reflected signal, the position and moving direction of the target object can be determined.


    Four, the human body induction switch three-wire connection


    The three-wire connection of the human body induction switch refers to a way to connect the switch with the power supply, load and ground wire. This connection usually takes the following steps:


    Connect the positive terminal of the power supply to the "power" terminal of the switch;

    Connect the positive load terminal to the "load" terminal of the switch;

    Connect the ground wire to the Ground wire terminal of the switch.


    Fifth, the combination of radar sensor and human body sensor switch


    More intelligent automatic control can be achieved by combining the radar sensor with the human body sensor switch. When the human body enters the detection range of the radar sensor, the sensor will send a microwave signal to the human body and receive the signal reflected back. By processing and analyzing the reflected signal, the position and moving direction of the human body can be determined. At this time, the human body sensor switch will automatically control the load on and off according to the analysis result, and realize intelligent control.


    6. Application case analysis


    The following is a practical application case to explain the working principle and advantages of human body sensor switch three-wire connection radar sensor. The example is a set of lighting fixtures in a shopping mall that are intelligently controlled by using human sensing switches and radar sensors. When a person enters the area, the lighting fixture will automatically light up; When the personnel leave, the lighting fixture will automatically turn off. This intelligent control method not only saves energy, but also improves people's quality of life.


    Vii. Summary and Outlook


    The three-wire radar sensor with human body sensing switch is a kind of intelligent and automatic control equipment, which has a wide application prospect. By analyzing the working principle of radar sensor and the combination of radar sensor and human body sensor switch, we can understand the advantages and characteristics of this equipment. In the future, with the continuous development of technology, this intelligent and automated control mode will be applied in more fields, bringing more convenience and benefits to people's life and work.


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