Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones

A technology of microphone array and composite array, which is applied in the field of testing, can solve the problems of mutual interference of spatial layout and poor perception effect, and achieve the effect of simple implementation, small overall volume and limited space

Inactive Publication Date: 2015-07-01
ZHONGBEI UNIV
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Problems solved by technology

[0004] The present invention provides a four-element composite array sensory layout method based on PIR and microphones to solve the techn

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  • Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones
  • Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones
  • Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones

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[0017] A four-element composite array sensing layout method based on PIR and microphones, including a four-element cross-shaped PIR sensing array and a four-element microphone array; the four-element cross-shaped PIR sensing array includes four human detectors; the human detector It includes a PIR sensor and a Fresnel lens matched with the PIR sensor; four human body detectors are arranged at equal intervals around a center point, and the probe of each human body detector faces the outside, respectively detecting four directions on the horizontal plane; The sensing areas of two adjacent human detectors cross to form a dual sensing area. The four human detectors have a total of four dual sensing areas; the four-element microphone array includes four microphones, and the four microphones are respectively set in four Dual perception zone.

[0018] The PIR sensor adopts the LHI-968 dual-element pyroelectric infrared sensor, matched with the 7608-15 Fresnel lens; the microphone adopts...

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Abstract

The invention belongs to the technical field of testing and particularly relates to a quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones, aiming to solve the technical problems of mutual interference of spatial layout and poor sensing effect of a composite sensor in a limited space currently. The quaternary composite array sensing layout method based on the PIR sensors and the microphones comprises a quaternary cross-shaped PIR sensing array and a quaternary microphone array. The quaternary cross-shaped PIR sensing array comprises four human body probers which are arranged at equal intervals by surrounding a central point, a probe of each human body prober faces outward, and the four human body probers are used for probing four directions on the horizontal plane respectively. The quaternary microphone array comprises four microphones which are arranged in four dual-sensing areas respectively. The quaternary composite array sensing layout method based on the PIR (passive infrared) sensors and the microphones has the advantages that by means of composite optimization of the PIR array and the sensor array, the problem that micro sensing node space is limited is solved; the two kinds of arrays are combined mutually but do not interfere with each other; a target can be discovered quickly and positioned precisely.

Description

technical field [0001] The invention is to study the joint layout method of PIR array and microphone array on the micro-networked perception node to achieve the best perception effect, belongs to the field of testing technology, and is specifically a four-element compound array perception layout method based on PIR and microphone. Background technique [0002] PIR is a passive sensor. Compared with traditional radar detection, it has many advantages such as good concealment and less vulnerable to attack; and it is used with Fresnel lens to greatly expand the scope of use. A single high-performance, high-directional microphone (microphone) can obtain high-quality sound source signals at a certain distance from the sound source in the absence of noise and reverberation. Moreover, the sound source localization of the microphone array can adapt to the complex and changeable environment in reality, effectively solving the problem that the environment introduces a large amount ...

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Application Information

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IPC IPC(8): G01V11/00
Inventor 杨卫张文栋刘前进侯爽王泽兵赵迪徐胜金晓会王淑平郑建生邓立齐
Owner ZHONGBEI UNIV
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