Radar microwave human sensor switch principle How to install human sensor switch

First, the principle of radar microwave human body induction switch

Radar microwave human sensing switch is an automatic control device based on radar microwave technology, which can detect human movement and trigger the switch action. The working principle of this switch is mainly based on the Doppler effect and microwave detection technology.

The Doppler effect

The Doppler effect refers to the fact that when there is relative motion between the source and the observer, the frequency of the wave received by the observer is different from the frequency of the wave actually emitted by the source. In the radar microwave human sensing switch, the microwave signal emitted by the radar will reflect back to the sensor when the human body moves, and produce a signal in the opposite direction of the human body. This signal is processed to trigger the switch action.

Microwave detection technique

Radar microwave body sensing switch uses microwave detection technology to detect human movement. Microwave detection technology uses the characteristics of microwave signal, when the microwave signal meets the human body moving, it will produce a reflected signal, and the frequency of the reflected signal is related to the speed of human body moving. After receiving the reflected signal, the sensor can determine the direction and speed of the human body by analyzing the frequency change of the reflected signal.

Second, the installation method of radar microwave human body induction switch

Installation of radar microwave human body sensor switch need to pay attention to the following points:

Select the appropriate installation location

The radar microwave human body sensor switch should be installed at a certain height from the ground, and it is generally recommended to be 1-1.5 meters from the ground. At the same time, you should ensure that the switch is installed in the center of the detection area, so that you can better detect human movement.

Avoid distractions

When installing the radar microwave body sensing switch, the switch should be avoided near large metal objects, because metal objects can affect the propagation of microwave signals. At the same time, you should also avoid installing the switch near the vent or air conditioning outlet, so as not to affect the normal operation of the switch.

Follow the instructions for wiring and setting up

When installing the radar microwave body sensing switch, connect and set it according to the instructions. In general, the induction switch needs to be connected to the power supply and output lines, and some parameters need to be adjusted to adapt to different environments and use needs. Therefore, you should read the instructions carefully before installation and follow the instructions.

Third, use precautions and maintenance

Precautions for use

When using radar microwave body sensing switches, the following points need to be noted:

(1) Avoid using radar microwave body sensing switches in humid, dusty or high temperature environments;

(2) Ensure that there is no barrier in the detection area of the induction switch, so as not to affect the normal operation of the switch;

(3) If the sensitivity and detection range of the switch need to be adjusted, it should be operated according to the instructions;

(4) In the process of use, do not disassemble or replace the components of the induction switch at will, so as not to affect its normal work.

maintenance

In order to keep the radar microwave body sensing switch in good working condition, it is necessary to carry out regular maintenance. Specifically include the following points:

(1) Regularly clean the surface and internal components of the induction switch to remove dust and dirt;

(2) Check whether the wiring of the induction switch is firm, and tighten it in time if it is loose;

(3) Regularly check whether the sensitivity and detection range of the induction switch are normal, and adjust in time if there is an anomaly;

(4) If the induction switch is not used for a long time, the power supply should be cut off to extend its service life.

4. Common problems and solutions

In the process of using radar microwave body sensing switches, you may encounter some common problems, and here are some possible solutions:

Inductive switch does not work: First check whether the power supply is connected properly, and then check whether the switch is correctly installed, and whether there is an obstruction in the detection area.

Inductive switch sensitivity is too high or too low: Adjust the sensitivity and detection range of the switch according to the instructions, so that it can adapt to different environments and use needs.

False induction switch trigger: Check whether the induction switch is installed in the appropriate position, avoid installing the switch near large metal objects, and do not install it near the air vent or air conditioning outlet.

Insensitive induction switch: Clean the surface and internal components of the induction switch, and check whether the wiring is firm.

The sensor switch cannot be adjusted: operate according to the instructions, if it still cannot be adjusted, you can contact the manufacturer's technical support for help.

In short, when using the radar microwave human body sensor switch, it is necessary to pay attention to the above problems, and carry out regular maintenance to ensure its normal work and extend its service life.