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Method for detecting presence of an object in an environment

A technology for detecting the environment and objects, which can be used in measuring devices, detection by electromagnetic waves, re-radiation of sound waves, etc., and can solve the problems of difficult application of motion sensors and proximity sensors.

Active Publication Date: 2019-12-10
RICHWAVE TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, motion sensors and proximity sensors may not provide accurate and / or real-time detection of the presence or absence of various objects, such as non-living, human, and animal
In addition, motion and proximity sensors have application difficulties in many different environments, such as in larger rooms, open offices, public spaces, or outdoors

Method used

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  • Method for detecting presence of an object in an environment
  • Method for detecting presence of an object in an environment
  • Method for detecting presence of an object in an environment

Examples

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Embodiment Construction

[0044] figure 1 Exemplary situations for detecting the presence of objects in some embodiments disclosed in the present invention. For example, if figure 1 As shown, the object presence detector 100 can detect the presence of a human body 110 in the environment. The object presence detector 100 includes an antenna 120 , a receiver 140 and a processor 160 . The antenna 120 can be used to receive electromagnetic waves or signals in the environment. The receiver 140 can be used to process the fluctuations or signals received by the antenna 120 to detect the presence of objects. For example, the receiver 140 can sample the wave or signal received by the antenna 120 according to a sampling frequency, convert the sampled signal into a baseband signal, and input the baseband signal to the processor 160 . The processor 160 can be configured to execute the method for detecting the presence of an object. For example, the processor 160 may perform the method for detecting the presen...

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Abstract

The method for detecting presence of an object in an environment including the steps of: receiving a Doppler signal during a frame in frequency domain, separating the Doppler signal in the frequency domain into a plurality of sub-band signals, determining a plurality of sub-band signal energies corresponding to the plurality of sub-band signals, determining whether motion of the object is detectedin accordance with one of the plurality of sub-band signal energies and a baseline energy, and responsive to a determination that motion of the object is detected, setting a flag of object presence.

Description

technical field [0001] The present invention relates to the detection of the existence of objects, in particular to a method and device capable of detecting the existence of objects in the environment. Background technique [0002] The detection of whether there is an object in the environment can be applied in many fields, such as a device or system of a smart home, and a home security monitoring system. Motion sensors and proximity sensors can be used to detect the presence of objects. For example, a passive infrared (Passive infrared, PIR) sensor can be used to detect whether someone enters or leaves the sensing range of the sensor. However, motion sensors and proximity sensors may not provide accurate and / or real-time detection of the presence or absence of various objects, such as non-living things, humans, and animals. Additionally, motion and proximity sensors have difficulties in many different environments, such as in larger rooms, open offices, public spaces, or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/04G01V3/12
CPCG01S13/04G01V3/12G01S13/56G01S15/523G01S17/50G01S7/414
Inventor 郭胜中
Owner RICHWAVE TECH CORP