CN202471260U - Pyroelectric infrared detection device - Google Patents
Pyroelectric infrared detection device Download PDFInfo
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- CN202471260U CN202471260U CN201220070876XU CN201220070876U CN202471260U CN 202471260 U CN202471260 U CN 202471260U CN 201220070876X U CN201220070876X U CN 201220070876XU CN 201220070876 U CN201220070876 U CN 201220070876U CN 202471260 U CN202471260 U CN 202471260U
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- pyroelectric infrared
- infrared sensor
- fresnel lenses
- search coverage
- pyroelectric
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- 241001465754 Metazoa Species 0.000 abstract description 30
- 230000005855 radiation Effects 0.000 description 6
- 230000006698 induction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
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- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The utility model relates to a pyroelectric infrared detection device which comprises a pyroelectric infrared sensor assembly, a Fresnel lens assembly and an amplifying circuit. The pyroelectric infrared sensor assembly comprises a first pyroelectric infrared sensor and a second pyroelectric infrared sensor. Partial overlap is formed between detection regions of the first pyroelectric infrared sensor and the second pyroelectric infrared sensor and the detection regions of the first pyroelectric infrared sensor and the second pyroelectric infrared sensor comprise a first detection region, a second detection region and a third detection region. The pyroelectric infrared detection device adopts the two pyroelectric infrared sensors to achieve detection of the three detection regions including a sharing middle region between the two pyroelectric infrared sensors and determine which detection region a human or an animal is in and moving direction of the human or the animal, and solves the problems in the prior art that the pyroelectric infrared detection device adopting the two pyroelectric infrared sensors can not detect and determine whether the human or the animal is in the sharing middle region between the two pyroelectric infrared sensors. Further, the pyroelectric infrared detection device does not need to utilize three pyroelectric infrared sensors as in the prior art, thereby being simpler in structure and saving production cost.
Description
[technical field]
The utility model belongs to the infrared detection technique field, particularly a kind of rpyroelectric infrared sniffer.
[background technology]
At present; Usually to survey position of animal in three zones and the pyroelectric infrared sensor (PIR) that moving direction all must adopt three horizontal positioned; Can only detect animal position and moving direction in two zones and adopt the pyroelectric infrared sensor (like Fig. 1) of two horizontal positioned, but be not sure of the whether zone line between two pyroelectric infrared sensors of human or animal, this zone line is only the shooting area of camera; When being applied in the camera; Induction often takes place settle the situation of bat less than the human or animal, shooting, video recording are difficult to control, use inconvenient.
[utility model content]
In order to solve the above-mentioned technical matters that exists in the prior art, the utility model provides a kind of rpyroelectric infrared sniffer, can utilize two pyroelectric infrared sensors to realize three search coverages, so that survey human or animal's position and moving direction.
The technical scheme that the prior art problem that solves the utility model is adopted is:
A kind of rpyroelectric infrared sniffer; Include pyroelectric infrared sensor assembly, Fresnel Lenses assembly and amplifying circuit; Said pyroelectric infrared sensor assembly includes first pyroelectric infrared sensor and second pyroelectric infrared sensor; And overlap between the search coverage of said first pyroelectric infrared sensor and second pyroelectric infrared sensor, form first search coverage, second search coverage and the 3rd search coverage.
Further; Said Fresnel Lenses assembly includes the first separate Fresnel Lenses and second Fresnel Lenses, and said first Fresnel Lenses and second Fresnel Lenses focus on respectively on said first pyroelectric infrared sensor and second pyroelectric infrared sensor;
Perhaps, said Fresnel Lenses assembly is that holistic said first pyroelectric infrared sensor and second pyroelectric infrared sensor of making can arbitrarily angled sensing focus on the ultrared Fresnel Lenses of coming from the place ahead.
Further, the investigative range of said second search coverage is smaller or equal to the coverage of camera lens.
Said sniffer also includes a baffle plate, and said baffle plate is located between said first pyroelectric infrared sensor and second pyroelectric infrared sensor;
Further, said baffle plate is made by light-proof material.
The utility model passes through technique scheme; Can be as long as adopt two pyroelectric infrared sensors to realize confirming search coverage and moving direction that the human or animal is positioned to comprising the detection of totally three search coverages of two zone lines between the pyroelectric infrared sensor, both solved two pyroelectric infrared sensors of available technology adopting and can't survey, confirm whether zone line between them has human or animal's problem; Need not as prior art, to adopt three pyroelectric infrared sensors again; Structure is simpler, has also practiced thrift production cost, and second search coverage size; Guarantee not surpass the coverage of camera lens; Just can not detect the human or animal but clap less than situation take place, take, the video recording effect is secure, uses more convenient; Add adjustable baffle plate and Fresnel Lenses, make the dirigibility of this sniffer strong, use more extensive.
[description of drawings]
Fig. 1 is the structural representation that has the rpyroelectric infrared sniffer at present now;
Fig. 2 is the structural representation of the said a kind of rpyroelectric infrared sniffer embodiment one of the utility model;
Fig. 3 is the structural representation of the said a kind of rpyroelectric infrared sniffer embodiment two of the utility model;
Fig. 4 is a kind of schematic flow sheet of the detection method based on the said rpyroelectric infrared sniffer of the utility model.
The Figure of description description of symbols:
1, pyroelectric infrared sensor assembly, 11, first pyroelectric infrared sensor, 12, second pyroelectric infrared sensor; 13, first search coverage; 14, second search coverage, the 15, the 3rd search coverage, 2, the Fresnel Lenses assembly; 21, first Fresnel Lenses, 22, second Fresnel Lenses.
[embodiment]
Below in conjunction with accompanying drawing the utility model technical scheme is elaborated.
As shown in fig. 1:
The utility model embodiment one provides a kind of rpyroelectric infrared sniffer; Include pyroelectric infrared sensor assembly 1, Fresnel Lenses assembly 2 and amplifying circuit (not showing among the figure); Wherein, Pyroelectric infrared sensor assembly 1 is connected with the amplifying circuit conducting; Include along first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12 of induction direction horizontal positioned; Be mainly used in the infrared ray of gathering human or animal's radiation in the search coverage, overlap between the search coverage of said first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12, form first search coverage 13, second search coverage 14 and the 3rd search coverage 15; Fresnel Lenses assembly 2 mainly is made up of two the first separate Fresnel Lenses 21 and second Fresnel Lenses 22; First Fresnel Lenses 21 focuses in the sensor measuring unit of first pyroelectric infrared sensor 11, and second Fresnel Lenses 22 focuses in the sensor measuring unit of second pyroelectric infrared sensor 12, is mainly used in the receiving sensitivity that strengthens first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12.During work, when the infrared ray of human or animal's radiation is focused on the detector of pyroelectric infrared sensor assembly 1 through Fresnel Lenses assembly 2, whether after amplifying circuit is handled, just can detect the front has the human or animal.Like this; This sniffer is as long as adopt two pyroelectric infrared sensors to realize comprising the detection of totally three search coverages of two zone lines between the pyroelectric infrared sensor; Both solved two pyroelectric infrared sensors of available technology adopting and can't survey, confirm whether zone line between them has human or animal's problem; Need not again as prior art, to adopt three pyroelectric infrared sensors, structure is simpler, has also practiced thrift production cost.
As shown in Figure 2:
The utility model embodiment two provides a kind of rpyroelectric infrared sniffer; Its structure and embodiment one are basic identical; Include pyroelectric infrared sensor assembly 1, Fresnel Lenses assembly 2 and amplifying circuit (not showing among the figure); Wherein, pyroelectric infrared sensor assembly 1 is connected with the amplifying circuit conducting, includes first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12 of horizontal positioned; And overlap between the search coverage of said first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12, form first search coverage 13, second search coverage 14 and the 3rd search coverage 15; Its difference is; Present embodiment two described Fresnel Lenses assemblies 2 are that first Fresnel Lenses 21 and second Fresnel Lenses 22 of implementing one are made an integral body, make first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12 arbitrarily angled sensing focus on the infrared ray of coming from the place ahead; And this sniffer also includes an adjustable baffle plate 3, and baffle plate 3 is made by light-proof material; And be located at first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12; To block the part induction angle of first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12, reach control second search coverage 14 sizes, let it not surpass the coverage of camera lens; Can also be according to demand through the height of change baffle plate 3 and the size of Fresnel Lenses assembly 2; Reach the purpose of adjustment first search coverage 13, second search coverage 14 and the 3rd search coverage 15 sizes, dirigibility is strong, uses more extensive.
Certainly; The utility model embodiment one described a kind of rpyroelectric infrared sniffer also can include the said baffle plate 3 the same with instance two, and said baffle plate 3 is located between said first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12 equally.
As shown in Figure 3:
The detection method of the said a kind of rpyroelectric infrared sniffer of the utility model may further comprise the steps:
Step a. is through relative position and size between adjustment two pyroelectric infrared detectors (first pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12) and the Fresnel Lenses assembly 2; Its search coverage is overlapped, form three search coverages (first search coverage 13, second search coverage 14 and the 3rd search coverage 15);
Two pyroelectric infrared sensors of step b. are surveyed the infrared ray of human or animal's radiation in three search coverages;
Whether step c surveys ultrared situation according to two pyroelectric infrared sensors; Confirm the search coverage that the human or animal belongs to; Be specially: if having only first pyroelectric infrared sensor 11 to detect the infrared ray of human or animal's radiation; And second pyroelectric infrared sensor 12 does not detect, and just explains that the human or animal is in first search coverage 13; If have only second pyroelectric infrared sensor 12 to detect the infrared ray of human or animal's radiation, and first pyroelectric infrared sensor 11 does not detect, and just explains that the human or animal is in second search coverage 15; If a pyroelectric infrared sensor 11 and second pyroelectric infrared sensor 12 all detect the infrared ray of human or animal's radiation, just explain that the human or animal is in second search coverage 14;
Steps d. the transregional variation that takes place according to human or animal's in three search coverages of two pyroelectric infrared sensor real-time detections position; Confirm human or animal's moving direction, promptly human or animal's order of crossing another search coverage from a search coverage is learnt its moving direction.
When this sniffer should be in camera; Second search coverage 14 is the camera shooting area; Its investigative range preferably smaller or equal to the coverage of camera lens, just can be taken pictures or record a video when the human or animal is in second search coverage 14 like this, just can not detect the human or animal but clap less than situation take place; Take, the video recording effect is secure, uses more convenient.For example: with the camera of going hunting is example; When animal gets into first search coverage 13 or the 3rd search coverage 15, can open the power supply of camera, because digital camera all needs the on time; Be generally about 1 second; When animal gets into second search coverage 14, (can be adjusted to the investigative range of second search coverage 14 the same or smaller with the scope of taking pictures of camera) like this, camera is ready to, and just can take pictures rapidly.
Above content is the further explain that combines concrete optimal technical scheme that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (6)
1. rpyroelectric infrared sniffer; Include pyroelectric infrared sensor assembly (1), Fresnel Lenses assembly (2) and amplifying circuit; Said pyroelectric infrared sensor assembly (1) includes first pyroelectric infrared sensor (11) and second pyroelectric infrared sensor (12); It is characterized in that: overlap between the search coverage of said first pyroelectric infrared sensor (11) and second pyroelectric infrared sensor (12), form first search coverage (13), second search coverage (14) and the 3rd search coverage (15).
2. rpyroelectric infrared sniffer according to claim 1; It is characterized in that: said Fresnel Lenses assembly (2) includes separate first Fresnel Lenses (21) and second Fresnel Lenses (22), and said first Fresnel Lenses (21) and second Fresnel Lenses (22) focus on respectively on said first pyroelectric infrared sensor (11) and second pyroelectric infrared sensor (12).
3. rpyroelectric infrared sniffer according to claim 1 is characterized in that: said Fresnel Lenses assembly (2) can arbitrarily angled sensing focus on the ultrared Fresnel Lenses of coming from the place ahead for holistic said first pyroelectric infrared sensor (11) and second pyroelectric infrared sensor (12) of making.
4. rpyroelectric infrared sniffer according to claim 1 is characterized in that: the investigative range of said second search coverage (14) is smaller or equal to the coverage of camera lens.
5. according to any one described rpyroelectric infrared sniffer in the claim 1 to 4; It is characterized in that: said sniffer also includes a baffle plate (3), and said baffle plate (3) is located between said first pyroelectric infrared sensor (11) and second pyroelectric infrared sensor (12).
6. rpyroelectric infrared sniffer according to claim 5 is characterized in that: said baffle plate (3) is made by light-proof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220070876XU CN202471260U (en) | 2012-02-29 | 2012-02-29 | Pyroelectric infrared detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220070876XU CN202471260U (en) | 2012-02-29 | 2012-02-29 | Pyroelectric infrared detection device |
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| CN202471260U true CN202471260U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220070876XU Expired - Lifetime CN202471260U (en) | 2012-02-29 | 2012-02-29 | Pyroelectric infrared detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302695A (en) * | 2018-01-03 | 2018-07-20 | 广东美的制冷设备有限公司 | Human body detecting method, human body detecting device and air conditioner |
| CN108302729A (en) * | 2018-01-03 | 2018-07-20 | 广东美的制冷设备有限公司 | Human body detecting method, human body detecting device and air conditioner |
| CN108444604A (en) * | 2018-05-04 | 2018-08-24 | 深圳钶钽智能技术有限公司 | A kind of space partition zone detection device, system and method |
-
2012
- 2012-02-29 CN CN201220070876XU patent/CN202471260U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302695A (en) * | 2018-01-03 | 2018-07-20 | 广东美的制冷设备有限公司 | Human body detecting method, human body detecting device and air conditioner |
| CN108302729A (en) * | 2018-01-03 | 2018-07-20 | 广东美的制冷设备有限公司 | Human body detecting method, human body detecting device and air conditioner |
| CN108302695B (en) * | 2018-01-03 | 2020-05-05 | 广东美的制冷设备有限公司 | Human body detection method, human body detection equipment and air conditioner |
| CN108302729B (en) * | 2018-01-03 | 2020-06-05 | 广东美的制冷设备有限公司 | Human body detection method, human body detection equipment and air conditioner |
| CN108444604A (en) * | 2018-05-04 | 2018-08-24 | 深圳钶钽智能技术有限公司 | A kind of space partition zone detection device, system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151216 Address after: Jinwan District Sanzao Town Airport Road 519000 in Guangdong Province, Zhuhai City, No. 288, B building, third floor Patentee after: Lie Ke Electronics Co., Ltd. of Zhuhai City Address before: 519000 Guangdong province Zhuhai City Jiuzhou Road No. 1146 Haizhu building 9A Patentee before: Wang Zhengping |
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| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
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| CX01 | Expiry of patent term |