Human presence sensor Radar Human presence sensor 5.8 and 24 difference

I. Introduction

With the rapid development of science and technology, the application of human presence sensor radar in various fields is more and more extensive. This sensor can detect the existence of the human body by detecting the tiny signal emitted by the human body, providing a convenient and quick solution for smart home, security monitoring and other fields. On the market, there are several models of human presence sensor radar, of which 5.8 and 24 are two common frequencies. This article will introduce the difference between these two frequencies in detail, and analyze their advantages and disadvantages.

Second, the working principle of human presence sensor radar

Radar works by detecting tiny signals emitted by the human body. When the human body is within the detection range of the radar, it generates tiny electromagnetic signals, which are picked up and processed by the radar. By analyzing these signals, the radar can determine the presence of the human body, such as whether it is in bed, chair, and so on. The application of this technology can greatly improve the convenience and safety of life.

3. The difference between 5.8 and 24

Frequency difference

5.8 and 24 are two different frequencies, so their detection and penetration capabilities are also different. 5.8 frequency radar is more sensitive to the signal emitted by the human body, so it is suitable for detecting the presence of the human body in a small space. The 24 frequency radar has a stronger penetration ability and can detect the presence of the human body in a larger space.

Detection range variance

Due to the different frequencies, the detection range of 5.8 and 24 is also different. Generally speaking, 5.8 has a small detection range and is suitable for detecting human presence in a small space, such as beds, sofas, and so on. The detection range of 24 is larger and can cover a larger space, which is suitable for security monitoring, smart home and other occasions that require large area detection.

Anti-interference ability difference

Due to different frequencies, the anti-interference ability of 5.8 and 24 is also different. Generally speaking, 5.8 has strong anti-interference ability and is suitable for more complex electromagnetic environments. The anti-interference ability of 24 is weak, and it is easy to be interfered by other electromagnetic signals. Therefore, when selecting the human presence sensor radar, it is necessary to select the appropriate frequency according to the actual application scenario.

Fourth, pros and cons analysis

Advantage analysis

(1) Convenient and fast: the presence of human body sensor radar can monitor the existence of the human body in real time, without contact with the human body, easy and fast to use.

(2) Safe and reliable: Due to the non-contact detection method, it will not have any impact on the human body, and it is safe and reliable to use.

(3) Strong adaptability: human presence sensor radar is suitable for various occasions, such as smart home, security monitoring and so on.

(4) Remote control: through the connection of smart devices or networks, remote control and monitoring can be achieved to improve the convenience and security of life.

Defect analysis

(1) High price: The price of human presence sensor radar is relatively high, which may increase the cost.

(2) Need regular maintenance: The presence of sensor radar on the human body needs regular maintenance and cleaning to ensure its normal operation.

(3) Possible interference: Although 5.8 has strong anti-interference ability, it may still be interfered with in a complex electromagnetic environment.

V. Conclusion

As a convenient, fast, safe and reliable detection technology, human presence sensor radar is used more and more widely in various fields. 5.8 and 24 are two common frequencies, which differ in detection and penetration capabilities, and need to be selected according to the actual application scenario. Although human presence sensor radar has many advantages, there are also some disadvantages that need attention. In the future, with the continuous progress of technology and the continuous expansion of application scenarios, it is believed that this technology will be more widely used and developed.