CN104749654A - Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones - Google Patents
Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones Download PDFInfo
- Publication number
- CN104749654A CN104749654A CN201510176245.4A CN201510176245A CN104749654A CN 104749654 A CN104749654 A CN 104749654A CN 201510176245 A CN201510176245 A CN 201510176245A CN 104749654 A CN104749654 A CN 104749654A
- Authority
- CN
- China
- Prior art keywords
- array
- pir
- quaternary
- microphone
- perception
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
The present invention be on micronet sensing node, study PIR array and microphone array combine layout method, to reach optimal perceived effect, belong to technical field of measurement and test, be specially a kind of quaternary composite array perception layout method based on PIR and microphone.
Background technology
PIR is a kind of passsive sensor, compared with traditional radar detection, has good concealment, not easily many advantages such as under attack; And use with the collocation of Fresnel Lenses, greatly extend usable range.The microphone (microphone) of single high-performance, high directivity when noiseless, without reverberation, in the timing of distance sound source one, high-quality sound-source signal can be obtained.And the auditory localization of microphone array can adapt to the environment complicated and changeable in reality, efficiently solve environment and introduce a large amount of noises and the problem causing pickoff signals Quality Down.Also accurate orientation can be carried out to the position angle of target, the angle of pitch, and then the position coordinates of estimating target.
For the array of quaternary pir sensor composition, during its detection perception target, require there is no veil in its detection viewing field, otherwise the disappearance of signal sampling can be caused; For quaternary microphone array, if having veil in array, can affect the selection of array aperture, aperture is less in the reasonable scope, disturbs larger.Like this, on micronet node, because spatial volume is limited, two kinds of array compound tenses, must consider array size and perceived effect problem.Therefore be starved of and a kind ofly can gather the quick discovery early warning of PIR array and the pinpoint advantage of microphone array to greatest extent, and then effectively realize the layout method of microminiaturization of compound sensor array.
Summary of the invention
The present invention solves the technical matters that space layout disturbs mutually and perceived effect is not good that at present compound sensor exists under limited space, provides a kind of quaternary composite array perception layout method based on PIR and microphone.
The present invention realizes by the following technical solutions: a kind of quaternary composite array perception layout method based on PIR and microphone, comprises quaternary cruciform PIR perception array and quaternary microphone array; Described quaternary cruciform PIR perception array comprises four peoplesniffers; The Fresnel Lenses that described peoplesniffer comprises a pir sensor and matches with this pir sensor; Four peoplesniffers equidistantly arrange around a central point, everyone probe of bulk detector all toward the outer side, the four direction respectively on detection level face; Form a two sensing region after the sensing region intersection of two adjacent peoplesniffers, four peoplesniffers have altogether four two sensing regions; Described quaternary microphone array comprises four microphones, and four microphones are located in four two Perception Areas respectively.
The first object of the present invention is a kind of method providing Appropriate application space on micronet sensing node, makes PIR array and being compounded in of microphone array become possibility.
The second object of the present invention is to provide a kind of quaternary composite array perception layout method based on PIR and microphone, while PIR array and microphone array being listed in utilize its own advantages separately, do not influence each other respective perceptional function, and reach best perceived effect.
The third object of the present invention is the thinking of the layout microminiaturization providing a kind of compound sensor array, for how reducing volume and the perceived effect aspect of maximum performance sensor is significant.
Compound sensor array perception principle of work is: PIR four-element array adopts LHI-968 double base pyroelectric infrared sensor, collocation 7608-15 type Fresnel Lenses, form a peoplesniffer, the probe of pir sensor is the probe (shown in Fig. 1) of human body sensor, its perceived effect has specific distance and perception angular range, and its mutual cross section has two sensing region.Quaternary microphone array adopts electret free field 1/2 inch of CHZ-213 type microphone, to the 360 ° of perception of the realization of goal in certain distance.If when microphone array puts into the sensing range of PIR array, can produce the infrared signal of target and block, affect PIR receiving target signal, and then affect perceived effect; If PIR array is put into the aperture of microphone array, also can receive sound source information to microphone and produce interference, affect positioning precision, and relative to the former, its impact effect be less, because sound wave itself has certain diffracting power, can penetrate thing.The present invention mainly studies how to reduce the interference of microphone array to PIR perception array, the mode adopted is that microphone array is placed in two Perception Areas of PIR array, be combined with each other, gather the quick discovery early warning of PIR array and the pinpoint advantage of microphone array, and don't affect the detection perception of PIR.
The invention has the beneficial effects as follows: the optimization compound of PIR array and microphone array, solve the limited space problem of miniature sensing node; Two kinds of arrays be combined with each other, and do not interfere with each other; Target can be found fast and can accurately locate.The program achieves the mutual supplement with each other's advantages of PIR array and microphone array, and overall volume is less, implements simpler.
Accompanying drawing explanation
Fig. 1 pir sensor and Fresnel Lenses are arranged in pairs or groups and are used schematic diagram one.
Fig. 2 pir sensor and Fresnel Lenses are arranged in pairs or groups and are used schematic diagram two.
Fig. 3 PIR array perception schematic diagram.
Fig. 4 microphone array perception schematic diagram.
Fig. 5 microphone array is placed on PIR array Perception Area schematic diagram.
1-first pir sensor, 2-second pir sensor, 3-the 3rd pir sensor, 4-the 4th pir sensor, 5-Fresnel Lenses, 6-first microphone, 7-second microphone, 8-the 3rd microphone, 9-four-microphone, 10-target, the mono-sensing region of A-, the two sensing region of B-, C-perception blind area.
Embodiment
Based on a quaternary composite array perception layout method for PIR and microphone, comprise quaternary cruciform PIR perception array and quaternary microphone array; Described quaternary cruciform PIR perception array comprises four peoplesniffers; The Fresnel Lenses that described peoplesniffer comprises a pir sensor and matches with this pir sensor; Four peoplesniffers equidistantly arrange around a central point, everyone probe of bulk detector all toward the outer side, the four direction respectively on detection level face; Form a two sensing region after the sensing region intersection of two adjacent peoplesniffers, four peoplesniffers have altogether four two sensing regions; Described quaternary microphone array comprises four microphones, and four microphones are located in four two Perception Areas respectively.
Described pir sensor adopts LHI-968 double base pyroelectric infrared sensor, collocation 7608-15 type Fresnel Lenses; Microphone adopts electret free field 1/2 inch of CHZ-213 type microphone.Adopt the device of above-mentioned model can realize the mutual supplement with each other's advantages of PIR array and microphone array well, and overall volume is less.
A rectangular array lined up by four microphones, the point coincides of rectangular centre and quaternary cruciform PIR perception array.As the array 1 in Fig. 5.This layout type Effect on Detecting is best, and the mutual supplement with each other's advantages of PIR array and microphone array also reaches best.
The present invention a kind ofly studies the associating layout method of sensor in the finite space, comprises the following steps during embody rule.
1.PIR sensor is a kind of passive type human body infrared detector, and adopts double-source type probe complementary technology, for the interference of environment mid-infrared light line, can not produce electric signal and export.When human body is successively responded to by a source or by b source through probe, Sa<Sb or Sa>Sb produces difference, and double source loses complementary balanced effect and produces signal output very sensitively.When people moves in vertical state facing to probe, Sa=Sb does not produce difference, and no signal exports (as shown in Figure 1).Therefore, the position that detector is installed is parallel being advisable with people's direction of travel.The peoplesniffer can making following induction mode is combined with Fresnel Lenses according to above principle probe.In conjunction with Fresnel Lenses model used in the present invention, detection schematic diagram as shown in Figure 2.Sensing region scope 110 ° in figure, perceived distance is 30m.
2. as shown in Figure 3, four pir sensors and four Fresnel Lenses 5 are utilized to form quaternary cross PIR perception array, following three kinds of regions will be produced: single sensing region A, two sensing region B after forming such arrangement mode, and in the C(Fig. 3 of perception blind area shown in dash area).And micronet node is inherently very little, therefore perception blind area is very little, and the perception target for personnel's type is negligible.Material is thus formed the sensing region of an omnidirectional 360 °, as long as during gtoal setting sensor array, just can find target.Wherein perception array desirable is that perception visual field is without veil.The line that the line that first pir sensor 1 and the 3rd pir sensor 3 are popped one's head in is popped one's head in the second pir sensor 2 and the 4th pir sensor 4 is mutually orthogonal.
3. as shown in Figure 4, utilize the square cross array of four microphone compositions, for acoustic target through search coverage, the microphone array according to certain pore size calculates the angle of target and the distance at distance arrays center by time delay algorithm.Described algorithm is the known algorithm of this area.
4., when microphone array and PIR array being compounded on miniature composite array, need to consider that microphone has certain height, minimum to blocking of PIR array as much as possible.The mode of compound has 3 kinds, as shown in the array 1 in Fig. 5, array 2, array 3.As the complex method array 2, more serious blocking can be caused to the main detection viewing field of PIR array; As array 3, when being placed on the perception blind area of PIR, because the scope of perception blind area is smaller, will certainly reduce the aperture of microphone array, aperture is less, and perceived effect is just undesirable; As array 1, be placed in two Perception Areas of PIR array, would not have an impact to the aperture of microphone array like this, perception can also be overlapped to the target entering search coverage, make the perceived effect that the array of compound reaches best.
Claims (3)
1., based on a quaternary composite array perception layout method for PIR and microphone, it is characterized in that, comprise quaternary cruciform PIR perception array and quaternary microphone array; Described quaternary cruciform PIR perception array comprises four peoplesniffers; The Fresnel Lenses that described peoplesniffer comprises a pir sensor and matches with this pir sensor; Four peoplesniffers equidistantly arrange around a central point, everyone probe of bulk detector all toward the outer side, the four direction respectively on detection level face; Form a two sensing region after the sensing region intersection of two adjacent peoplesniffers, four peoplesniffers have altogether four two sensing regions; Described quaternary microphone array comprises four microphones, and four microphones are located in four two Perception Areas respectively.
2. a kind of quaternary composite array perception layout method based on PIR and microphone as claimed in claim 1, it is characterized in that, described pir sensor adopts LHI-968 double base pyroelectric infrared sensor, collocation 7608-15 type Fresnel Lenses; Microphone adopts electret free field 1/2 inch of CHZ-213 type microphone.
3. a kind of quaternary composite array perception layout method based on PIR and microphone as claimed in claim 1 or 2, it is characterized in that, a rectangular array lined up by four microphones, the point coincides of rectangular centre and quaternary cruciform PIR perception array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176245.4A CN104749654A (en) | 2015-04-15 | 2015-04-15 | Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176245.4A CN104749654A (en) | 2015-04-15 | 2015-04-15 | Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104749654A true CN104749654A (en) | 2015-07-01 |
Family
ID=53589621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510176245.4A Pending CN104749654A (en) | 2015-04-15 | 2015-04-15 | Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749654A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044673A (en) * | 2015-07-31 | 2015-11-11 | 中北大学 | Distributed target tracking and positioning system and method based on pyroelectric sensing |
| CN106646433A (en) * | 2016-10-21 | 2017-05-10 | 中国计量大学 | Discrete array for measuring sound field characteristic of underground sound source |
| CN107505048A (en) * | 2017-07-20 | 2017-12-22 | 成都九维云联科技有限公司 | A kind of all-directional infrared detection device |
| CN109471145A (en) * | 2018-10-17 | 2019-03-15 | 中北大学 | A kind of alliteration positioning and orientation method based on acoustic passive location array with four sensors platform |
| CN110164693A (en) * | 2018-02-12 | 2019-08-23 | 北京纳米能源与系统研究所 | Electret electrode and preparation method thereof, electret device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130082842A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Method and device for fall detection and a system comprising such device |
| CN103786685A (en) * | 2012-10-26 | 2014-05-14 | 深圳市美赛达科技股份有限公司 | Parking anti-theft method and system |
| CN103910262A (en) * | 2013-12-03 | 2014-07-09 | 天津市安维康家科技发展有限公司 | Intelligent elevator accident remote emergency visual unit and control method based on 4G |
| US20140379305A1 (en) * | 2013-06-21 | 2014-12-25 | Crestron Electronics, Inc. | Occupancy Sensor with Improved Functionality |
| CN104317142A (en) * | 2014-10-23 | 2015-01-28 | 生迪光电科技股份有限公司 | Intelligent lamp and picture pick-up system |
-
2015
- 2015-04-15 CN CN201510176245.4A patent/CN104749654A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130082842A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Method and device for fall detection and a system comprising such device |
| CN103786685A (en) * | 2012-10-26 | 2014-05-14 | 深圳市美赛达科技股份有限公司 | Parking anti-theft method and system |
| US20140379305A1 (en) * | 2013-06-21 | 2014-12-25 | Crestron Electronics, Inc. | Occupancy Sensor with Improved Functionality |
| CN103910262A (en) * | 2013-12-03 | 2014-07-09 | 天津市安维康家科技发展有限公司 | Intelligent elevator accident remote emergency visual unit and control method based on 4G |
| CN104317142A (en) * | 2014-10-23 | 2015-01-28 | 生迪光电科技股份有限公司 | Intelligent lamp and picture pick-up system |
Non-Patent Citations (1)
| Title |
|---|
| 王永龙: "基于无线传感器网络的目标探测技术研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044673A (en) * | 2015-07-31 | 2015-11-11 | 中北大学 | Distributed target tracking and positioning system and method based on pyroelectric sensing |
| CN106646433A (en) * | 2016-10-21 | 2017-05-10 | 中国计量大学 | Discrete array for measuring sound field characteristic of underground sound source |
| CN106646433B (en) * | 2016-10-21 | 2023-10-03 | 中国计量大学 | Discrete array for measuring sound field characteristics of underwater sound source |
| CN107505048A (en) * | 2017-07-20 | 2017-12-22 | 成都九维云联科技有限公司 | A kind of all-directional infrared detection device |
| CN110164693A (en) * | 2018-02-12 | 2019-08-23 | 北京纳米能源与系统研究所 | Electret electrode and preparation method thereof, electret device |
| CN109471145A (en) * | 2018-10-17 | 2019-03-15 | 中北大学 | A kind of alliteration positioning and orientation method based on acoustic passive location array with four sensors platform |
| CN109471145B (en) * | 2018-10-17 | 2022-12-06 | 中北大学 | Double-sound positioning attitude determination method based on quaternary acoustic array platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749654A (en) | Quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones | |
| CN101957442B (en) | Sound source positioning device | |
| JP2011015050A (en) | Array for beam forming, and sound source exploration/measurement system using the same | |
| CN102901950B (en) | Method for recognizing three-dimensional coordinates of sound sources via planar arrays | |
| CN104898091A (en) | Microphone array self-calibration sound source positioning system based on iterative optimization algorithm | |
| CN102680579A (en) | Concrete internal defect detection method based on acoustic emission sensor array | |
| CN102590788B (en) | Redundancy time difference positioning method and redundancy time difference positioning system | |
| CN108614268A (en) | The acoustics tracking of low altitude high speed airbound target | |
| CN105223551A (en) | A kind of wearable auditory localization tracker and method | |
| Tuma et al. | Sound source localization | |
| CN202095037U (en) | Real-time three-dimensional sound source image monitoring system | |
| CN107861096A (en) | Least square direction-finding method based on voice signal reaching time-difference | |
| Dokmanić et al. | How to localize ten microphones in one finger snap | |
| CN107884743A (en) | Suitable for the direction of arrival intelligence estimation method of arbitrary structures sound array | |
| Kunin et al. | Direction of arrival estimation and localization using acoustic sensor arrays | |
| CN105954653B (en) | Method and system for locating breakdown point of GIS (gas insulated switchgear) field voltage withstand test | |
| Agarwal et al. | Higher order statistics based direction of arrival estimation with single acoustic vector sensor in the under-determined case | |
| Goseki et al. | Combination of microphone array processing and camera image processing for visualizing sound pressure distribution | |
| CN110108902A (en) | Measuring error correction method for three-dimensional nonopiate ultrasonic array wind measuring device | |
| CN206639585U (en) | A kind of monitoring device for differentiating acoustic source separation | |
| Wang et al. | 3-D sound source localization with a ternary microphone array based on TDOA-ILD algorithm | |
| CA3136276A1 (en) | Firearm discharge location systems and methods | |
| Kunin et al. | 3D direction of arrival estimation and localization using ultrasonic sensors in an anechoic chamber | |
| Xu et al. | Multi-target passive location based on the algorithm of TDOA-Camberra | |
| Vina et al. | A spherical cross-channel algorithm for binaural sound localization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150701 |
|
| RJ01 | Rejection of invention patent application after publication |