CN202869657U - Large detection zone hunting camera - Google Patents
Large detection zone hunting camera Download PDFInfo
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- CN202869657U CN202869657U CN 201220447019 CN201220447019U CN202869657U CN 202869657 U CN202869657 U CN 202869657U CN 201220447019 CN201220447019 CN 201220447019 CN 201220447019 U CN201220447019 U CN 201220447019U CN 202869657 U CN202869657 U CN 202869657U
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- pyroelectric infrared
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- infrared sensor
- fresnel lenses
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Abstract
The utility model provides a large detection zone hunting camera, comprising a housing, and a camera module, a light source, a center control MCU and a plurality of pyroelectric infrared sensors disposed in the housing. The plurality of pyroelectric infrared sensors are horizontally arranged. Lenses are disposed on a surface of the housing one-to-one corresponding to the plurality of pyroelectric infrared sensors. Beneficial effect of the large detection zone hunting camera is that a structure formed by a plurality of lenses and pyroelectric infrared detectors is provided, so that sum of the plurality of the lenses forms larger view field, and a detection zone is larger. Signals among the plurality of detectors can be mutually spurred/verified and form dual views. The large detection zone hunting camera effectively improves corresponding speed of a system and reduces misinformation.
Description
Technical field
The utility model relates to a kind of photography and vedio recording device, refers in particular to a kind of large investigative range hunting camera.
Background technology
The hunting camera is the left unguarded camera that is applied to open-air a kind of energy automatic capturing human or animal motion state.It sends enabling signal by a motion detector usually after capturing human or animal's (target) motion, only be under daytime or the night state by a light sensor indicative for environments simultaneously, if night dark surrounds nextly also need a secondary light source that target is thrown light on, then by built-in camera module target is carried out exposure calculating and collects colour or the black white image of target.Whole process is automatically controlled by a microprocessor (MCU), thereby reaches the purpose of obtaining the motion state of open-air target under the unmanned state.
And for hunting magazine motion detector, usually adopt pyroelectric infrared sensor, the effect of faint Infrared when moving that gives out based on its body temperature in order to detect the targets such as human or animal.Detector is a preposition Fresnel Lenses that is used for focusing on usually.Because the body temperature infrared ray that the human or animal distributes is very faint, single infrared eye produces false signal sometimes, causes the phenomenon of " wrong report " to produce.
Fig. 1 discloses a kind of on the market common hunting camera with infrared floor light, and it mainly is comprised of control MCU among a pyroelectric infrared sensor 100 and preposition Fresnel Lenses 200 thereof, CdS resistor-type light indication sensor, one group of light source that is comprised of 850nm light emitting diode (LED) lamp array, camera model and.
This hunting camera has adopted one group of pyroelectric infrared detector to add Fresnel Lenses, and advantage is simple in structure, and component count is few, and control is easy, and shortcoming is distance, the angle and range limited that detects.The investigative range coverage diagram of typical single Fresnel Lenses as shown in Figure 2.On central axis, detection range reaches maximal value, and the detection range that departs from the unspecified angle place behind the central axis sharply descends, and is directly proportional with the biquadratic of the cosine of axis angle with this place.This is by due to the characteristic of Fresnel Lenses itself.Simultaneously, increase along with detection range, the intensity of echo signal sharply weakens, the motion of non-living body target, such as the leaf rising thermal current that waves, shines upon rear thick grass with the wind, all might cause " wrong report ", namely photograph the photo that does not have the live body target, have influence on the normal use of hunting camera.
The utility model content
The purpose of this utility model is to have overcome defects, and the large investigative range hunting camera that a kind of detection is more accurate and sensing range is larger is provided.
The purpose of this utility model is achieved in that a kind of large investigative range hunting camera, and it comprises housing, is provided with camera model, light source, middle control MCU and a plurality of pyroelectric infrared sensor in the housing; Described a plurality of pyroelectric infrared sensor is horizontally, in described surface of shell one by one corresponding a plurality of pyroelectric infrared sensor be provided with lens;
In the said structure, described pyroelectric infrared sensor and lens comprise three groups, and the Width along surface of shell between every group of pyroelectric infrared sensor and the lens is arranged side by side;
In the said structure, described left and right two groups pyroelectric infrared sensor and lens are symmetrical with respect to middle one group pyroelectric infrared sensor and lens center axis; Described lens left and right, middle groups are Fresnel Lenses;
In the said structure, the central detection range of described left and right group Fresnel Lenses is near than the Fresnel Lenses of middle groups, and the detection angle of left and right group Fresnel Lenses is large than the Fresnel Lenses of middle groups;
In the said structure, the central detection range of described left and right group Fresnel Lenses is far away than the Fresnel Lenses of middle groups, and the detection angle of left and right group Fresnel Lenses is little than the Fresnel Lenses of middle groups;
In the said structure, the detection axis setting at an angle to each other of described three groups of pyroelectric infrared sensors and lens;
In the said structure, the detection axis of described left and right group of pyroelectric infrared sensor and lens and the detection axis angle of middle groups pyroelectric infrared sensor and lens are 15 degree;
In the said structure, the detection axis of described left and right group of pyroelectric infrared sensor and lens and the detection axis angle of middle groups pyroelectric infrared sensor and lens are 45 degree.
The beneficial effects of the utility model have been to provide one to add the structure that pyroelectric infrared detector forms by multiple lens, thereby a plurality of sums can form larger field range, investigative range is larger, and the signal between a plurality of detectors can inspire mutually/verify two mirror, Effective Raise system corresponding speed, false alarm reduction.
Description of drawings
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is that prior art is with the hunting camera structure synoptic diagram of infrared floor light;
Fig. 2 is the detection range-angle figure of typical Fresnel Lenses;
Fig. 3 is structure exploded perspective view of the present utility model;
Fig. 4 is an example structure synoptic diagram of the present utility model;
Fig. 5 is another example structure synoptic diagram of the present utility model;
Fig. 6 is the space distribution synoptic diagram that three groups of Fresnel Lenses that the utility model adopts add pyroelectric infrared sensor;
Fig. 7 is Fig. 4 embodiment at angle is the space distribution synoptic diagram that 15 three groups of Fresnel Lenses when spending add pyroelectric infrared sensor;
Fig. 8 is Fig. 5 embodiment at angle is the space distribution synoptic diagram that 15 three groups of Fresnel Lenses when spending add pyroelectric infrared sensor;
Fig. 9 is that angle is the space distribution synoptic diagram that 45 three groups of Fresnel Lenses when spending add pyroelectric infrared sensor.
The 1-back cover; The 2-protecgulum; 3-the first Fresnel Lenses; 4-the second Fresnel Lenses; 5,100-pyroelectric infrared sensor; The 21-perforate; The 200-Fresnel Lenses.
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, realized purpose and effect, below in conjunction with embodiment and cooperate that accompanying drawing is detailed to give explanation.
See also Fig. 3, present embodiment relates to a kind of large investigative range hunting camera, it comprises housing, housing is comprised of back cover 1 and protecgulum 2, in the back cover 1 of housing and protecgulum 2, be provided with camera model, light source, middle control MCU and a plurality of pyroelectric infrared sensor 5, corresponding each pyroelectric infrared sensor 5 is provided with perforate 21 one by one in protecgulum 2 surfaces of housing, and interlocking has lens in the perforate 21.In the present embodiment, pyroelectric infrared sensor 5 comprises three groups with lens, and three groups of pyroelectric infrared sensors 5 are horizontal with lens, normally be arranged side by side along the Width on protecgulum 2 surfaces of housing between every group of pyroelectric infrared sensor 5 and the lens as required, can have in the horizontal direction thus maximum combination sensing range, and best, left and right two groups pyroelectric infrared sensor 5 and lens are symmetrically distributed in its both sides with respect to the central axis of middle one group pyroelectric infrared sensor and lens.
And the lens of one group of above-mentioned centre, it is identical to add the sensor group with the now general magazine lens of hunting, also can choose the more outstanding Fresnel Lenses of some individual event performance index, same left and right group lens also can adopt Fresnel Lenses, but common left and right group lens are different from middle groups, as among Fig. 3-5 for do to distinguish be depicted as respectively herein circular and square, circular first Fresnel Lenses 3 that is called wherein, square second Fresnel Lenses 4 that then is called.
In the example structure of Fig. 4, protecgulum 2 lens Cheng Yuan, the side, circle is arranged, protecgulum 2 lens Cheng Fang then among the embodiment of Fig. 5, circle, arrange the side, the main difference of above-mentioned two kinds of lens is, far away but the first less Fresnel Lenses 3 of detection angle of circular representative central authorities detection range, square medium but the second Fresnel Lenses 4 that detection angle is larger of central detection range that then represents, namely in Fig. 4 embodiment, left, the central detection range of the first Fresnel Lenses 3 of right group is near than the second Fresnel Lenses 4 of middle groups, a left side, the detection angle of the first Fresnel Lenses 3 of right group is large than the second Fresnel Lenses 4 of middle groups.Fig. 5 embodiment then, the central detection range of the second Fresnel Lenses 4 of left and right group is far away than the first Fresnel Lenses 3 of middle groups, the detection angle of the second Fresnel Lenses 4 of left and right group is little than the first Fresnel Lenses 3 of middle groups.
Further, better for the detection axis at an angle to each other setting of three groups of pyroelectric infrared sensors 5 in Fig. 6 said structure with lens.
For example, the detection axis of left and right group of pyroelectric infrared sensor 5 and lens and middle groups pyroelectric infrared sensor and the detection axis angle of lens are 15 differences of being combined the first Fresnel Lenses 3, the second Fresnel Lenses 4 when spending can obtain effect: as Fig. 7 be lens Cheng Fang, circle, regional coverage diagram when arrange the side, Fig. 8 is lens Cheng Yuan, side, the regional coverage diagram when circle is arranged, and wherein the spill shield of the angle limits of arranged on left and right sides after by lens realized (referring to Fig. 3).In above-mentioned situation, central lens is responsible for the detection in zone, dead ahead, and left and right two lens then are responsible for both sides but all also in the detection of camera lens field range inner region, namely the synthetic angle of compound lens is less than or equal to the visual field of camera lens.The focus place of both sides lens, a pyroelectric infrared sensor is respectively arranged, and the pyroelectric infrared sensor signal of its signal and central lens verifies mutually, namely have two groups or above be useful signal during with alarm, can effectively prevent wrong report, improve widely the reliability of hunting camera.
And the detection axis angle of the detection axis of left and right group of pyroelectric infrared sensor and lens and middle groups pyroelectric infrared sensor and lens is when being 45 degree (or other angles), referring to the search coverage coverage diagram of Fig. 9.At this moment, central lens is responsible for the detection in zone, dead ahead, and left and right two lens then are responsible for both sides but are part or all of in the within sweep of the eye detection of foreign lands of single camera camera lens, at this moment the visual field of camera lens, such as equal 45 °, less than the detection angle of the three groups of additions in left, center, right.Equally respectively there is a pyroelectric infrared sensor at the focus place of both sides lens.In this case, the signal of both sides detector, only for the startup of hunting camera, can be at target object during near shot region, the pre-cooling camera enters start and acquisition mode, waits for and taking a picture immediately when target object really enters the investigative range of central lens, reach the purpose that obtains quickly target image, namely improve the startup reaction velocity of hunting camera.At this moment, central authorities also can verify mutually with the signal of edge finder, the possibility of same false alarm reduction.
In sum, the advantage of this patent in:
1, adopt three groups of (perhaps many groups) Fresnel Lenses to add the structure of pyroelectric infrared detector, when three groups of detectors all at camera lens within sweep of the eye the time, its investigative range is larger, particularly the detection range of both sides is longer.The signal of central detector and edge finder can be verified mutually, forms two mirror, effectively false alarm reduction.
2, adopt three groups of (perhaps many groups) Fresnel Lenses to add the structure of pyroelectric infrared sensor, when three groups of detectors only have central one group fully at camera lens within sweep of the eye, and other two groups wholly or in part outside the camera lens field range time, the signal of edge finder can be used for pre-cooling hunting camera start with prepare photograph work, thereby when target object enters in the investigative range of central detector, capture faster the image of target object.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (8)
1. large investigative range hunting camera, it is characterized in that: it comprises housing, is provided with camera model, light source, middle control MCU and a plurality of pyroelectric infrared sensor in the housing; Described a plurality of pyroelectric infrared sensor is horizontally, in described surface of shell one by one corresponding a plurality of pyroelectric infrared sensor be provided with lens.
2. large investigative range hunting camera as claimed in claim 1, it is characterized in that: described pyroelectric infrared sensor and lens comprise three groups, the Width along surface of shell between every group of pyroelectric infrared sensor and the lens is arranged side by side.
3. large investigative range hunting camera as claimed in claim 2, it is characterized in that: described left and right two groups pyroelectric infrared sensor and lens are symmetrical with respect to middle one group pyroelectric infrared sensor and lens center axis; Described lens left and right, middle groups are Fresnel Lenses.
4. large investigative range hunting camera as claimed in claim 3, it is characterized in that: the central detection range of described left and right group Fresnel Lenses is near than the Fresnel Lenses of middle groups, and the detection angle of left and right group Fresnel Lenses is large than the Fresnel Lenses of middle groups.
5. large investigative range hunting camera as claimed in claim 3, it is characterized in that: the central detection range of described left and right group Fresnel Lenses is far away than the Fresnel Lenses of middle groups, and the detection angle of left and right group Fresnel Lenses is little than the Fresnel Lenses of middle groups.
6. such as the described large investigative range hunting camera of claim 2-5 any one, it is characterized in that: the detection axis setting at an angle to each other of described three groups of pyroelectric infrared sensors and lens.
7. large investigative range hunting camera as claimed in claim 6 is characterized in that: the detection axis of described left and right group of pyroelectric infrared sensor and lens and the detection axis angle of middle groups pyroelectric infrared sensor and lens are 15 degree.
8. large investigative range hunting camera as claimed in claim 6 is characterized in that: the detection axis of described left and right group of pyroelectric infrared sensor and lens and the detection axis angle of middle groups pyroelectric infrared sensor and lens are 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447019 CN202869657U (en) | 2012-09-04 | 2012-09-04 | Large detection zone hunting camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447019 CN202869657U (en) | 2012-09-04 | 2012-09-04 | Large detection zone hunting camera |
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| CN202869657U true CN202869657U (en) | 2013-04-10 |
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| CN 201220447019 Expired - Fee Related CN202869657U (en) | 2012-09-04 | 2012-09-04 | Large detection zone hunting camera |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106886120A (en) * | 2017-04-28 | 2017-06-23 | 深圳东方红鹰科技有限公司 | With the detection camera for homogenizing light source |
| CN108965798A (en) * | 2018-06-27 | 2018-12-07 | 山东大学 | Distributed short distance panorama monitoring terminal, system and the layout method of seashore birds |
-
2012
- 2012-09-04 CN CN 201220447019 patent/CN202869657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106886120A (en) * | 2017-04-28 | 2017-06-23 | 深圳东方红鹰科技有限公司 | With the detection camera for homogenizing light source |
| CN108965798A (en) * | 2018-06-27 | 2018-12-07 | 山东大学 | Distributed short distance panorama monitoring terminal, system and the layout method of seashore birds |
| CN108965798B (en) * | 2018-06-27 | 2020-02-18 | 山东大学 | Distributed close-range panoramic monitoring terminal, system and layout method for beach birds |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150904 |
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| EXPY | Termination of patent right or utility model |