CN204906513U - Camera with antifog and defogging function - Google Patents
Camera with antifog and defogging function Download PDFInfo
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- CN204906513U CN204906513U CN201520500414.0U CN201520500414U CN204906513U CN 204906513 U CN204906513 U CN 204906513U CN 201520500414 U CN201520500414 U CN 201520500414U CN 204906513 U CN204906513 U CN 204906513U
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Abstract
The utility model discloses a camera with antifog and defogging function, including camera lens, the control unit and transparent ball cover, still be provided with on the camera lens and prevent that the infrared light from getting into the shading bubble cotton of camera lens, the inside heating unit that is used for heating transparent ball cover that still is provided with of transparent ball cover, the last control circuit who is used for the controlled heating unit that is provided with of the control unit. The utility model discloses utilize the heat effect that adds of heating unit, the effectual realization of ability is to the antifog of camera and defogging function.
Description
Technical field
The utility model belongs to technical field of video monitoring, particularly relates to a kind of antifog and video camera that is defrosting function of having.
Background technology
Along with popularizing of monitoring technique, in various public place, all CCTV camera is installed.And video camera occurs that under high humidity environment the problem of hazing is the maximum application difficult problem that all hermetic type video cameras face, also deriving the multiple video camera possessing the ability of antifog and demist by this problem, is generally realize by increasing moisture wicking material or increase fan etc. in video camera.
As shown in Figure 1, existing dome-type camera comprises camera lens 1, control unit 2, transparent ball cover 3 and shading foam 4, and in order to prevent video camera inside from hazing, increase moisture wicking material 6 in video camera inside, wherein moisture wicking material 6 is generally packed drier.But the structure of this dome-type camera, moisture wicking material 6 cannot Long-Time Service, once seal failure appears in video camera or debugging of uncapping, moisture wicking material 6 just no longer works after saturation, cannot play antifog effect.Secondly, moisture wicking material 6 does not possess the function of demist, and video camera inside just cannot be eliminated automatically once occur hazing.
As shown in Figures 2 and 3, prior art also has a kind of mode to carry out demist to dome-type camera, increase fan 7 in dome-type camera inside, make the temperature on video camera inner air and transparent ball cover 3 more even by fan 7, thus minimizing steam condenses on transparent ball cover 3.
But the design of this mechanism, fan 7 can only by the air of disturbance video camera inside, reduce transparent ball cover 3 antifog to realize with the difference of video camera Inside Air Temperature as far as possible, and directly cannot make the temperature of temperature higher than other position, video camera inside of transparent ball cover 3, antifog limited efficiency.
Secondly, effect due to shading foam 4 intercepts infrared light directly to enter camera lens 1, therefore, relative airtight space (as shown in Figure 2 the area of space 8 at video camera top) can be formed between shading foam 4 with transparent ball cover 3, so the wind of fan 7 cannot directly arrive at area of space 8, and exactly area of space 8 is only the region needing demist, because the blowing of fan 7 cannot arrive, after area of space 8 hazes, fog is difficult to eliminate.
In addition, the cost of fan 7 is higher, and structurally needs specialized designs fixed support, implements quite complicated.
Therefore, how to realize the antifog of dome-type camera and defrosting function, be dome-type camera disposed in the outdoor be badly in need of the technical problem that solves.
Summary of the invention
The purpose of this utility model is just to provide a kind of antifog and video camera that is defrosting function of having, with solve prior art antifog, except the bad technical problem of fog effect, can effectively realize the antifog of semi-spherical camera and defrosting function.
To achieve these goals, technical solutions of the utility model are as follows:
A kind of have antifog and video camera that is defrosting function, comprise camera lens, control unit and transparent ball cover, described transparent ball cover inside is also provided with the heating unit for heating transparent ball cover, and described control unit is provided with the control circuit for controlling described heating unit.
Wherein, heating unit just has following implementation:
Described heating unit is heating film, and described heating film is fixed on described transparent ball cover inwall, and the position that heating film is arranged is as the criterion with the monitoring range not blocking camera lens.
Or described heating unit is heating film, described heating film is fixed on the inwall of described transparent ball cover bottom margin.
Or described heating unit is heating film, described heating film is fixed on the turnover face bottom described transparent ball cover.
Inwall heating film being fixed on described transparent ball cover bottom margin is optimal way of the present utility model, and this structure has the good advantage of heating effect, can't cause block camera lens.
Further, the back side of described heating film is provided with gum, and described heating film is fixedly pasted onto on described transparent ball cover by gum.
The utility model also has a kind of execution mode, described camera lens is also provided with the shading foam preventing infrared light from entering camera lens, described heating unit is heating plate, and described heating plate is fixed on camera lens, is positioned at the area of space that described shading foam and transparent ball cover surround.
Further, described heating unit is annular, and the structural area of annular is large, and heating effect is good.
Control circuit described in the utility model is provided with detection module and control module, wherein:
Described detection module, for carrying out one-time detection at set intervals, judges whether to have occurred hazing;
Described control module, when hazing for detecting at described detection module, controlling heating unit bring to power, carrying out demist, otherwise control heating unit is operated in low-power consumption heated condition, carries out antifog.
Further, described detection module comprises image analyzing unit and judging unit, wherein:
Described image analyzing unit, for by camera acquisition to image carry out analyzing and processing, obtain image sharpness;
Described judging unit, for judging whether the difference of twice image sharpness in front and back exceedes the threshold value of setting, if exceeding, judging to have occurred hazing, otherwise being judged as not hazing.
Realized the judgement of whether hazing by detected image, realize cost low.
The angle of camera lens described in the utility model and horizontal direction is less than 90 °, namely camera lens and hyaloplasmic sphere hood-shaped become the cavity of opposing seal can more near the edge of transparent ball cover, the thus actual heat trnasfer that adds can be faster, antifog and can be better except fog effect.
What the utility model proposes a kind ofly has antifog and video camera that is defrosting function, the transparent ball cover of video camera arranges heating film, utilize the heat effect of heating film, the temperature of transparent ball cover is raised, the temperature of transparent ball cover is higher than the temperature of video camera inside, thus avoid steam to condense in transparent ball cover mist formation, cause camera to make a video recording unsharp situation.Meanwhile, the control circuit on control unit, can also control the heating power of heating film, when video camera external temperature changes, when causing hyaloplasmic sphere cover outer surface condensing mist formation, improve heating film heating power by control circuit, transparent ball cover temperature is raised, reach to outer surface except fog effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art moisture absorption demist video camera;
Fig. 2 is the structural representation of prior art fan demist video camera;
Fig. 3 is the structural representation of prior art another kind of fan demist video camera;
Fig. 4 is the structural representation of the utility model dome-type camera;
Fig. 5 is the structural representation of the utility model flake video camera;
Fig. 6 is the transparent ball cover schematic diagram of the utility model.
Reference numeral: 1, camera lens; 2, control unit; 3, transparent ball cover; 4, shading foam; 5, heating unit; 6, moisture wicking material; 7, fan; 8, area of space; 9, camera body; 30 turnover faces.
Embodiment
Be described in further details technical solutions of the utility model below in conjunction with drawings and Examples, following examples are not formed restriction of the present utility model.
As shown in Figure 4, the utility model is described for semi-spherical camera, video camera in Fig. 4 comprises camera lens 1, control unit 2 and transparent ball cover 3, simultaneously, camera lens 1 is also provided with the shading foam 4 preventing infrared light from entering camera lens 1, block effect by shading foam 4, the damage of infrared light to camera lens 1 can be reduced.The utility model is suitable for too for the dish-like video camera or flake video camera with this structure of transparent ball cover 3, as shown in Figure 5, below repeats no more.Control unit 2 is arranged in camera body 9, and camera lens 1 is arranged on camera body 9, and transparent ball cover 3 covers camera lens 1 and is arranged on camera body 9.
The utility model is provided with heating unit 5 in transparent ball cover 3, and is provided with control circuit on control unit 2, and control circuit is for controlling the heated condition of heating unit 5.
In embodiment of the present utility model, transparent ball cover 3 is in inner hollow dome-type, and the bottom of transparent ball cover 3 is opening, is convenient to install with camera body 9 be connected.Because camera lens 1 needs to rotate in transparent ball cover 3, carry out the monitoring to all angles, therefore, the position that heating unit 5 is arranged needs the monitoring visual angle of not blocking camera lens 1, in general heating unit 5 and the angle of horizontal direction should be less than the angle of camera lens 1 and horizontal direction, namely camera lens 1 is in the process of carrying out rotating monitoring, and the position of heating unit 5 can not enter in the monitoring range of camera lens 1, ensures the normal of monitoring.Preferably, heating unit 5 is heating film, and heating film is ring-like, is fixed on transparent ball cover 3 on the inwall at opening part edge, as shown in Figure 4.The position of heating unit 5 is arranged on the edge of opening position of transparent ball cover 3, the interference to camera lens 1 can be reduced to greatest extent, can effectively heat transparent ball cover 3 simultaneously.
Dome-type camera is when actual installation simultaneously, camera lens 1 generally can be less than 90 ° with the angle of horizontal direction, as shown in Figure 4, namely the angle between camera lens 1 and camera body 9 upper surface is less than 90 °, the cavity of the opposing seal that camera lens 1 and transparent ball cover 3 are formed can more near the edge of transparent ball cover 3, thus the actual heat trnasfer that adds can be faster, antifog and can be better except fog effect.
It should be noted that, the heating film of the present embodiment can also be pasted onto on the turnover face 30 that transparent ball cover 3 is connected with body, as shown in Figure 6.
Heating unit 5 of the present utility model is not limited to use heating film, also can adopt other structures.Such as: heating unit 5 can be heating plate, and this heating plate is fixed on camera lens 1, be positioned at the area of space 8 that shading foam 4 surrounds with transparent ball cover 3, can annular be set to, be fixed on camera lens 1.After heating plate heating, by air heat transfer, transparent ball cover 3 is heated, reaches same technique effect.
The back side is provided with gum to the present embodiment heating unit 5, by gum, is affixed to by heating unit 5 on the inwall of transparent ball cover 3, or on turnover face 30, or on camera lens 1, be convenient to the conduction of heating unit 5 heat.
Control circuit of the present utility model is integrated in control unit 2, is connected by wire with between heating unit 5, controls the heated condition of heating unit 5, heating unit 5 according to different demands, can be heated the carrying out of transparent ball cover 3.
The utility model heating unit 5 coordinates with control circuit, is operated in two kinds of operating states, is described respectively below:
Antifog pattern: when video camera normally works, control unit 2 is powered to heating unit 5 by control circuit, heating unit 5 is now in low-power consumption heated condition, i.e. antifog pattern, its objective is that the temperature making transparent ball cover 3 is a little more than the air themperature of hemisphere inside, thus prevent steam at transparent ball cover 3 internal condensate, realize antifog.And dome-type camera is when actual installation, camera lens 1 generally can be less than 90 ° with the angle of horizontal direction, namely the cavity of opposing seal that camera lens 1 and transparent ball cover 3 are formed can more near the edge of transparent ball cover 3, and the thus actual heat trnasfer that adds can be faster, antifog and remove fog effect can be better.
Defogging mode: the control circuit on control unit 2 at set intervals, such as each 1 hour, the image collected is carried out analysis contrast, judge whether video camera has occurred the problem that hazes by twice image sharpness before and after contrast, when twice image sharpness is inconsistent, be judged as occurring the phenomenon that hazes, then control circuit starts defogging mode, by the power ascension of heating unit 5 to maximum, its temperature is made to continue to raise, utilize high temperature to evaporate to make the fog on transparent ball cover 3 surface, realize defrosting function.Continue the image collected to be carried out analysiss contrast, when the image sharpness of front and back twice is consistent, the fog be on transparent ball cover 3 disappears, and now, control circuit control heating unit 5 returns to antifog pattern.
Therefore, the control circuit of the present embodiment is provided with detection module and control module, and detection module is used for carrying out one-time detection at set intervals, judges whether to have occurred hazing.Control module detection module detect haze time, control heating unit 5 bring to power, carry out demist, otherwise control heating unit 5 and be operated in low-power consumption heated condition, carry out antifog.
Particularly, detection module comprises image analyzing unit and judging unit, image analyzing unit be used for by camera acquisition to image carry out analyzing and processing, obtain image sharpness; Judging unit, for judging whether the difference of twice image sharpness in front and back exceedes the threshold value of setting, if exceeding, judging to have occurred hazing, otherwise being judged as not hazing.Before and after the present embodiment detects, twice image sharpness judges, when the difference of twice image sharpness in front and back exceedes the threshold value of setting, then judges to have occurred hazing, otherwise is judged as not hazing.
It should be noted that, above-mentioned control circuit is optimal way of the present utility model, this control circuit can also be set to simple two-mode commutation circuit, when giving tacit consent to, control circuit controls heating unit 5 and is operated in antifog pattern, when needs demist, switch by manually carrying out selection, control circuit controls heating unit 5 and is operated in defogging mode.
Whether the detection module of the present embodiment can also be humidity sensor, is arranged on by humidity sensor in transparent ball cover 3, be used for detecting hazing.Before and after the present embodiment preferably adopts and detects, twice image sharpness judges, the cost of realization is low, only needs to utilize existing control unit 2 just can realize.
The utility model by adding heating unit 5 in video camera, and by control circuit, controls the mode of operation of heating unit 5, realize switching that is antifog to video camera and defrosting function, can ensure well antifog and except fog effect, assembling and structure can be simplified again, reduce costs.
Above embodiment is only in order to illustrate the technical solution of the utility model but not to be limited; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (10)
1. one kind has antifog and video camera that is defrosting function, comprise camera lens (1), control unit (2) and transparent ball cover (3), it is characterized in that: described transparent ball cover (3) inside is also provided with the heating unit (5) for heating transparent ball cover (3), and described control unit (2) is provided with the control circuit for controlling described heating unit (5).
2. video camera according to claim 1, is characterized in that, described heating unit (5) is heating film, and described heating film is fixed on described transparent ball cover (3) inwall.
3. video camera according to claim 1, is characterized in that, described heating unit (5) is heating film, and described heating film is fixed on the inwall of described transparent ball cover (3) bottom margin.
4. video camera according to claim 1, is characterized in that, described heating unit (5) is heating film, and described heating film is fixed on the turnover face (30) of described transparent ball cover (3) bottom.
5. the video camera according to Claims 2 or 3 or 4, is characterized in that, the back side of described heating film is provided with gum, and described heating film is fixedly pasted onto on described transparent ball cover (3) by gum.
6. video camera according to claim 1, it is characterized in that, described camera lens (1) is also provided with the shading foam (4) preventing infrared light from entering camera lens (1), described heating unit (5) is heating plate, described heating plate is fixed on camera lens (1), is positioned at the area of space (8) that described shading foam (4) surrounds with transparent ball cover (3).
7. video camera according to claim 1, is characterized in that, described heating unit (5) is annular.
8. video camera according to claim 1, is characterized in that, described control circuit is provided with detection module and control module, wherein:
Described detection module, for carrying out one-time detection at set intervals, judges whether to have occurred hazing;
Described control module, when hazing for detecting at described detection module, controlling heating unit (5) bring to power, carrying out demist, otherwise control heating unit (5) is operated in low-power consumption heated condition, carries out antifog.
9. video camera according to claim 8, is characterized in that, described detection module comprises image analyzing unit and judging unit, wherein:
Described image analyzing unit, for by camera acquisition to image carry out analyzing and processing, obtain image sharpness;
Described judging unit, for judging whether the difference of twice image sharpness in front and back exceedes the threshold value of setting, if exceeding, judging to have occurred hazing, otherwise being judged as not hazing.
10. video camera according to claim 1, is characterized in that, described camera lens (1) is less than 90 ° with the angle of horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500414.0U CN204906513U (en) | 2015-07-09 | 2015-07-09 | Camera with antifog and defogging function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500414.0U CN204906513U (en) | 2015-07-09 | 2015-07-09 | Camera with antifog and defogging function |
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| CN204906513U true CN204906513U (en) | 2015-12-23 |
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| CN201520500414.0U Active CN204906513U (en) | 2015-07-09 | 2015-07-09 | Camera with antifog and defogging function |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454043A (en) * | 2016-10-31 | 2017-02-22 | 芜湖赋兴光电有限公司 | Camera with auto temperature control apparatus |
| CN106488089A (en) * | 2015-09-01 | 2017-03-08 | 上海雷卓网络科技有限公司 | Anti-fogging camera |
| CN106657738A (en) * | 2016-12-16 | 2017-05-10 | 四川工业科技学院 | Video camera |
| CN107197130A (en) * | 2017-06-30 | 2017-09-22 | 天津华来科技有限公司 | Lens construction and the camera including lens construction |
| CN107360351A (en) * | 2017-07-06 | 2017-11-17 | 中磊电子（苏州）有限公司 | Network monitoring apparatus and its defogging method |
| CN107509018A (en) * | 2017-09-21 | 2017-12-22 | 朱虹斐 | Outdoor antifog camera |
| CN107770430A (en) * | 2017-11-29 | 2018-03-06 | 武汉市哈哈便利科技有限公司 | One kind heats antifog cam device |
| CN108803201A (en) * | 2018-06-15 | 2018-11-13 | 济南每日优鲜便利购网络科技有限公司 | CCD camera assembly defogging method for refrigeration equipment |
| CN109843209A (en) * | 2016-10-14 | 2019-06-04 | 直观外科手术操作公司 | Reduce the image capture apparatus of photographic fog |
| CN110830681A (en) * | 2018-08-09 | 2020-02-21 | 神讯电脑(昆山)有限公司 | License plate camera device and method for removing target object covered by same |
| CN111543926A (en) * | 2020-06-12 | 2020-08-18 | 王冬 | Wiping instrument for pleuroperitoneal cavity mirror |
| CN114222042A (en) * | 2021-12-13 | 2022-03-22 | 福建富兰光学股份有限公司 | Manufacturing method of camera dome with anti-fog function |
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2015
- 2015-07-09 CN CN201520500414.0U patent/CN204906513U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106488089A (en) * | 2015-09-01 | 2017-03-08 | 上海雷卓网络科技有限公司 | Anti-fogging camera |
| CN109843209A (en) * | 2016-10-14 | 2019-06-04 | 直观外科手术操作公司 | Reduce the image capture apparatus of photographic fog |
| US11686995B2 (en) | 2016-10-14 | 2023-06-27 | Intuitive Surgical Operations, Inc. | Image capture device with reduced fogging |
| CN106454043A (en) * | 2016-10-31 | 2017-02-22 | 芜湖赋兴光电有限公司 | Camera with auto temperature control apparatus |
| CN106657738A (en) * | 2016-12-16 | 2017-05-10 | 四川工业科技学院 | Video camera |
| CN107197130A (en) * | 2017-06-30 | 2017-09-22 | 天津华来科技有限公司 | Lens construction and the camera including lens construction |
| CN107360351A (en) * | 2017-07-06 | 2017-11-17 | 中磊电子（苏州）有限公司 | Network monitoring apparatus and its defogging method |
| CN107509018A (en) * | 2017-09-21 | 2017-12-22 | 朱虹斐 | Outdoor antifog camera |
| CN107770430A (en) * | 2017-11-29 | 2018-03-06 | 武汉市哈哈便利科技有限公司 | One kind heats antifog cam device |
| CN108803201A (en) * | 2018-06-15 | 2018-11-13 | 济南每日优鲜便利购网络科技有限公司 | CCD camera assembly defogging method for refrigeration equipment |
| CN110830681A (en) * | 2018-08-09 | 2020-02-21 | 神讯电脑(昆山)有限公司 | License plate camera device and method for removing target object covered by same |
| CN110830681B (en) * | 2018-08-09 | 2023-03-17 | 神讯电脑(昆山)有限公司 | License plate camera device and method for removing target object covered by same |
| CN111543926A (en) * | 2020-06-12 | 2020-08-18 | 王冬 | Wiping instrument for pleuroperitoneal cavity mirror |
| CN111543926B (en) * | 2020-06-12 | 2024-01-12 | 王冬 | Thoracic and celioscope wiping instrument |
| CN114222042A (en) * | 2021-12-13 | 2022-03-22 | 福建富兰光学股份有限公司 | Manufacturing method of camera dome with anti-fog function |
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