Optimization scheme and application practice of radar body sensing switch sensing distance

Introduction:

As a kind of intelligent equipment, radar human sensor switch has been widely used in security, lighting control and other fields. However, due to the limitation of its sensing distance, sometimes there will be a false trigger or normal induction. This paper will focus on the optimization of radar human body sensing switch sensing distance, introduce relevant solutions, and combined with practical cases for application practice, in order to provide useful guidance and reference for readers.

First, the definition of induction distance and influencing factors

1.1 Definition of sensing distance

Sensing distance refers to the large distance that the radar human body sensing switch can effectively detect the human body, which is generally measured in meters.

1.2 Influencing Factors

(1) Sensor sensitivity: the sensitivity of the sensor determines its ability to perceive human activities. The higher the sensitivity, the further the sensing distance.

(2) Environmental factors: including temperature, humidity, light and other factors, these factors will affect the induction distance, need to be considered in the design and installation.

(3) Obstacle blocking: When the inductive signal meets obstacles such as walls, the signal will attenuate and reflect, thereby reducing the inductive distance.

Second, the induction distance optimization scheme

2.1 Adjust sensor sensitivity

By adjusting the sensitivity of the radar body sensing switch, the sensing distance can be changed. In general, the higher the sensitivity, the farther the sensing distance. According to the actual needs, the sensitivity can be properly adjusted to obtain the best induction effect.

2.2 Proper Installation and Positioning

During installation and positioning, the Angle and height of the sensor need to be considered. Generally speaking, the sensor is installed at a position of 2-3 meters from the ground, and is kept perpendicular to the direction of human activity or slightly inclined to obtain a better induction effect. In addition, it should be avoided to install the sensor directly on the surface of the metal material, so as not to affect the sensing distance.

2.3 Reduce interference signals

The interference signal will interfere with the normal operation of the radar human sensor switch, thus reducing the sensing distance. To reduce interference, the following measures can be taken:

(1) Avoid sensors near electromagnetic radiation sources, such as high-frequency electronic equipment, electromagnetic induction devices, etc.;

(2) Reasonable design of sensor wiring to avoid intersecting or parallel with other signal lines;

(3) Select radar human sensor switch products with good quality and strong anti-interference ability.

3. Application cases

Case 1: Commercial office building hall lighting control

A commercial office building hall uses a radar human sensor switch to control the light. In the process of installation and commissioning, the problem of insufficient sensing distance was encountered. After adjusting the sensitivity and optimizing the installation positioning, the desired induction effect is achieved, which automatically identifies pedestrians and adjusts the light intensity according to their activity state, improving energy efficiency.

Case 2: Public toilets open and close automatically

In order to improve the hygiene level and convenience of public toilets, a radar human sensor switch is used in one place to realize the function of automatic opening and closing. However, the limitation of sensing distance causes that sometimes the presence of the human body cannot be accurately sensed, or the switch is mistakenly triggered. After adjusting the sensor sensitivity, combined with reasonable installation and positioning, these problems are solved, and the comfort and convenience of public toilets are greatly improved.

Case 3: Indoor security monitoring system

In indoor security monitoring systems, radar body sensing switches are used to detect suspicious behavior and trigger alarms. In order to ensure the accuracy and reliability of the monitoring, the sensing distance of the sensor needs to be optimized. By adjusting the sensitivity, reducing the interference signal and other measures, to ensure that the induction distance is just right, to avoid the occurrence of false alarms and missed alarms.

Conclusion:

The optimization of sensing distance of radar human sensor switch is the key to improve its use effect and user experience. By adjusting sensitivity, reasonable installation and positioning, reducing interference signals and other aspects of optimization measures, can greatly improve the induction distance and induction effect. In practical application, according to different needs and scenarios, the above optimization scheme can be flexibly adopted, and adjusted and improved in combination with the actual situation to obtain the best use effect.

This paper introduces the optimization scheme of the sensing distance of the radar human body sensing switch, and analyzes the practical application case. It is hoped that through the sharing of this article, readers can have a certain understanding and guidance on the sensor distance optimization of radar human sensor switch, and provide help for the selection and adjustment in practical applications.