Human body existence induction detection method and device based on Doppler radar, and storage medium

A Doppler radar and induction detection technology, applied in the field of sensing, can solve the problems of increased hardware cost, time-consuming, and inability to adapt to applications, and achieve the effect of improving accuracy and sensitivity

Pending Publication Date: 2021-12-28
隔空微电子(广州)有限公司
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Problems solved by technology

[0006] Filtering by hardware will increase the complexity of circuit design, and cannot adapt to the application of various complex scenarios. The versatility and flexibility are not enough, and the hardware cost is increased.
The existing FFT method usually processes the full-band D

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  • Human body existence induction detection method and device based on Doppler radar, and storage medium
  • Human body existence induction detection method and device based on Doppler radar, and storage medium
  • Human body existence induction detection method and device based on Doppler radar, and storage medium

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Embodiment Construction

[0031] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0032] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention provides a human body existence induction detection method and device based on Doppler radar, and a storage medium. The method comprises the following steps: performing signal pretreatment on an intermediate frequency signal sampled in an induction range; judging whether a moving object exists in the current space or not through the human body motion detection signal; performing time-domain signal processing and analysis on the micro-motion and respiratory frequency range signals, and judging whether human body micro-motion or respiratory frequency exists in the current space or not; converting the time domain signal after signal pretreatment into a frequency domain signal, extracting a human body respiratory frequency signal through processing and spectral analysis of the frequency domain signal, and judging whether a human body exists in the current space or not; and according to the human body motion detection, the time domain breathing signal detection and the frequency domain breathing signal detection, judging the existence state of the human body in the current sensing range. According to the invention, interference signals can be effectively filtered, and the accuracy and sensitivity of human body existence detection are improved.

Description

technical field [0001] The present disclosure relates to the field of sensing technology, in particular to a Doppler radar-based human body presence sensing detection method, device, and storage medium. Background technique [0002] With the development of Internet of Things technology, various Internet of Things devices are becoming more and more popular. In order to improve the intelligence of various devices, it is necessary to provide various sensors for smart devices. Doppler radar sensor is one of them. It can make smart The device detects human body movement, micro-movement and even breathing and heart rate signals in a certain space to accurately determine whether there are people in the space. Doppler radar sensors are widely used in energy-saving lighting, smart home and security monitoring and other fields because of their good penetration and no influence of external ambient temperature. [0003] Traditional respiratory heart rate detection is basically contact-...

Claims

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Application Information

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IPC IPC(8): G01S13/04A61B5/05
CPCG01S13/04A61B5/05A61B5/0507A61B5/024A61B5/0816G01S13/56G01S7/415A61B5/0205G01S13/88
Inventor 吴华平
Owner 隔空微电子(广州)有限公司
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