CN102081297A - Device and method for testing switch threshold of infrared secondary light source of camera - Google Patents
Device and method for testing switch threshold of infrared secondary light source of camera Download PDFInfo
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- CN102081297A CN102081297A CN201010564425.7A CN201010564425A CN102081297A CN 102081297 A CN102081297 A CN 102081297A CN 201010564425 A CN201010564425 A CN 201010564425A CN 102081297 A CN102081297 A CN 102081297A
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Abstract
The invention provides a device and method for testing the switch threshold of an infrared secondary light source of a camera. The device provided by the invention comprises a box body, an adaptive plate, a light shading sleeve, a light source plate, multiple LED (Light Emitting Diode) lamps and lighting control buttons the number of which corresponds to the number of the LED lamps, wherein the box body is in a hollow structure; an opening is formed at the upper part of the box body; the adaptive plate can be detachably arranged outside the opening; an open hole is formed on the adaptive plate; the open hole corresponds to the opening; the light shading sleeve is arranged outside the circumference of the open hole; the light source plate is arranged on the side wall in the box body corresponding to the opening; each LED lamp is arranged on the light source plate; each lighting control button is respectively arranged on the outside wall of the box body and electrically connected with the light source plate for controlling the corresponding LED lamp to be turned on or turned off; and a light absorbing layer is arranged on the inside wall of the box body. The testing device provided by the invention has the advantages of simple structure, small space occupation, accurate testing result and the like, and is flexible and convenient to use. The device and method provided by the invention have a simple testing course and is suitable for testing the switch threshold of the infrared secondary light source of a camera.
Description
Technical field
The invention relates to the proving installation and the method for video camera, particularly relate to the infrared secondary light source switch of a kind of video camera threshold values proving installation and method.
Background technology
In the TV monitor system engineering, past is seldom used infrared lamp, but because social crime ratio constantly increases now, infrared ray is more outstanding at night surveillance institute role, not only important departments such as national treasury, oil depot, armory, book document storehouse, historical relic department, prison adopt, and all are used in general supervisory system.Even residential quarter TV monitoring and controlling engineering also used thermal camera, and these explanation people more and more require to accomplish 24 hours continuous monitorings to the requirement of TV monitor system engineering standard, more and more higher more and more to important place.
Thermal camera is exactly under the night vision state, and video camera can send the Infrared that people are invisible to the naked eye and remove to illuminate the object that is taken, and can photograph the image that is invisible to the naked eye under the dark surrounds.Present most thermal camera all adopts the main electronic devices and components of LED infrarede emitting diode as the infrared secondary light source of video camera.By adopting photoresistance that the characteristic of the sensitive conductive of light is controlled the energising and the outage of infrared lamp, when light grows dark, the resistance conduction, this moment, infrared lamp was opened, and light is bright, the resistance outage, infrared lamp is closed.
The switch threshold values of known test video camera infrared light supply, be that video camera to be measured is taken in the dark place, adjust the illuminance in the dark place then, utilize photoresistance the characteristic of the sensitive conductive of light to be controlled the energising and the outage of infrared lamp, whether open by the visual inspection infrared lamp, if infrared lamp is opened, then the illuminance in dark place this moment is the switch threshold values of video camera infrared light supply.Nowadays mostly to adopt the infrared light wavelength be the infrared lamp of 830～950nm to video camera, and the visible wavelength of human eye is 380～780nm, when infrared optical wavelength 830nm is above, whether naked eyes just are difficult to differentiate infrared lamp and open, if adopt above-mentioned known method of testing, the switch threshold values that records is not accurate enough.And known method of testing need be provided with the room of a special use, and it is big to take up room, and uses underaction convenient.
Summary of the invention
In order to solve deficiency of the prior art, the invention provides a kind of simple in structure, take up room little, flexible and convenient to use and the infrared secondary light source switch of accurate test result video camera threshold values proving installation and method.
The technical solution adopted for the present invention to solve the technical problems is: the infrared secondary light source switch of a kind of video camera threshold values proving installation comprises casing, adaptation board, shading sleeve, light source board, a plurality of LED lamps, the illumination control knob of corresponding LED lamp quantity, described casing is a hollow structure, which is provided with an opening, described adaptation board detachably is located at open outer side, this adaptation board is provided with a perforate, described perforate is corresponding with described opening, described shading sleeve is located at this perforate periphery, described light source board be located at the corresponding box inside wall 12 of described opening on, each LED lamp is located on the light source board, described each illumination control knob is located at respectively on the casing lateral wall and is electrically connected with light source board and is used to control corresponding LED lamp and lights or extinguish, and described box inside wall is provided with light-absorption layer.
The method of testing of using said apparatus that the switch threshold values of the infrared secondary light source of video camera is tested may further comprise the steps:
1), the camera lens of video camera to be measured is contained in the tapping of adaptation board, current sensing means is located between camera infrared LED lamp and the power supply;
2), press the illumination control knob successively and change illuminance in the casing according to the illuminance of illumination control knob correspondence, when current sensing means has the electric current indication, write down the illuminance of the illumination control knob correspondence of pressing, this illuminance is the switch threshold values of video camera infrared LED to be measured.
By adopting the aforementioned techniques scheme, the invention has the beneficial effects as follows: the box opening that places proving installation of the present invention by camera lens video camera to be measured, control the illuminance in the casing then, observe the unlatching or the closed condition of video camera infrared lamp by reometer, can accurately test out the switch threshold values of video camera infrared light supply, test process is simple and clear, the layman also can operate, and this apparatus structure is simple, it is little, flexible and convenient to use to take up room, and is applicable to the batch detection of video camera product.
Description of drawings
Fig. 1 is the cut-away view of the embodiment of the invention;
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are elaborated, a kind of video camera of the present invention infrared secondary light source switch threshold values proving installation and method, with reference to figure 1, this proving installation comprises casing 1, adaptation board 2, shading sleeve 3, light source board 4, LED lamp 5, illumination control knob 6, described casing 1 is a hollow structure, which is provided with an opening 11, described adaptation board 2 detachably is located at opening 11 outsides, this adaptation board 2 is provided with a perforate, described perforate is corresponding with described opening 11, this adaptation board 2 of camera lens size according to video camera 8 is changed more easily, described shading sleeve 3 is located at this perforate periphery, this shading sleeve 3 time can block irradiate light casing 1 outside to the camera lens of video camera 8 effectively in test, prevents the inaccurate problem appearance of test result effectively.Described light source board 4 be located at described opening 11 corresponding box inside walls 12 on, described LED lamp 5 is 5, and each LED lamp 5 is located on the light source board 4, described illumination control knob 6 is 5, and each illumination control knob 6 is corresponding one by one with LED lamp 5, described each illumination control knob 6 is located at respectively on casing 1 lateral wall and is electrically connected with light source board 4 and is used to control corresponding LED lamp 5 and lights or extinguish, and each illumination control knob 6 all is provided with the brightness that clear and definite illuminance value is used to control corresponding LED lamp 5, described casing 1 madial wall is provided with light-absorption layer, this light-absorption layer can be the material that spreads upon the light absorptive on casing 1 each madial wall, also can be that the material layers that one deck has a light absorptive is attached on casing 1 each madial wall, when irradiate light is on casing 1 each madial wall, the solar flare that can not produce mapping and bulk is with reflective, but after absorbing light again diffuse reflection go out part light, thereby keep the regular shade of grey, guarantee precision of test result.
When utilizing the switch threshold values of the infrared secondary light source of the infrared secondary light source switch of video camera of the present invention threshold values proving installation test video camera, can carry out according to following steps:
When test job begins, at first the camera lens with video camera 8 to be measured is connected with the perforate of adaptation board 2, because the camera lens of video camera 8 to be measured is in casing 1 at this moment, in the test process, we can't see that the infrared LED of video camera 8 to be measured is to open or closed condition, so we are provided with current sensing means 7 between the infrared LED of camera 8 to be measured and its power supply, when the infrared LED of camera 8 to be measured is opened, there is electric current to pass through, current sensing means 7 has current value to show, so we just can know the unlatching or the closed condition of the infrared LED of camera 8 to be measured by current sensing means 7; After above-mentioned video camera to be measured 8 connections are finished, with its unlatching, then we begin to adjust the illuminance in the casing, according to illumination control knob 6 pairing illuminance, we press the illumination control knob successively, the LED lamp corresponding with illumination control knob 6 lighted, illuminance in the casing also changes thereupon, in this process, we are after pressing next illumination control knob 6, and whether observe current sensing means 7 simultaneously has the electric current indication, when current sensing means 7 has the electric current indication, stop to control illumination control knob 6, write down the illuminance of illumination control knob 6 correspondences of pressing simultaneously, this illuminance is the switch threshold values of the infrared LED of video camera 8 to be measured.
Claims (2)
1. the infrared secondary light source switch of video camera threshold values proving installation, it is characterized in that: this device comprises casing, adaptation board, shading sleeve, light source board, a plurality of LED lamps, the illumination control knob of corresponding LED lamp quantity, described casing is a hollow structure, which is provided with an opening, described adaptation board detachably is located at open outer side, this adaptation board is provided with a perforate, described perforate is corresponding with described opening, described shading sleeve is located at this perforate periphery, described light source board be located at the corresponding box inside wall of described opening (12) on, each LED lamp is located on the light source board, described each illumination control knob is located at respectively on the casing lateral wall and is electrically connected with light source board and is used to control corresponding LED lamp and lights or extinguish, and described box inside wall is provided with light-absorption layer.
2. the infrared secondary light source switch of video camera threshold values method of testing is characterized in that may further comprise the steps:
1), the camera lens of video camera to be measured is contained in the tapping of adaptation board, current sensing means is located between camera infrared LED lamp and the power supply;
2), press the illumination control knob successively and change illuminance in the casing according to the illuminance of illumination control knob correspondence, when current sensing means has the electric current indication, write down the illuminance of the illumination control knob correspondence of pressing, this illuminance is the switch threshold values of video camera infrared LED to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564425.7A CN102081297B (en) | 2010-11-17 | 2010-11-17 | Device and method for testing switch threshold of infrared secondary light source of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564425.7A CN102081297B (en) | 2010-11-17 | 2010-11-17 | Device and method for testing switch threshold of infrared secondary light source of camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102081297A true CN102081297A (en) | 2011-06-01 |
| CN102081297B CN102081297B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010564425.7A Expired - Fee Related CN102081297B (en) | 2010-11-17 | 2010-11-17 | Device and method for testing switch threshold of infrared secondary light source of camera |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03164732A (en) * | 1989-11-24 | 1991-07-16 | Nippon Hoso Kyokai <Nhk> | Method for measuring optical characteristic of lens plate for stereoscopic display |
| CN2682447Y (en) * | 2003-12-15 | 2005-03-02 | 夏雪娇 | Infrared filter automatic starter of camera |
| CN200944174Y (en) * | 2006-06-20 | 2007-09-05 | 何军 | Automatic switching device for vidicon filter element |
| CN201440690U (en) * | 2009-05-20 | 2010-04-21 | 深圳市迪威泰实业有限公司 | Dual-CCD monitoring camera and monitoring system |
| CN201690527U (en) * | 2010-05-20 | 2010-12-29 | 浙江纳特智能网络工程有限公司 | Camera monitoring device |
| CN201781585U (en) * | 2010-09-08 | 2011-03-30 | 安徽兆安电子科技有限公司 | Rapid test box for infrared monitoring camera |
| CN102065317A (en) * | 2010-11-17 | 2011-05-18 | 泉州市东南光电有限公司 | Camera automatic gain effect detection device |
| CN102081298A (en) * | 2010-11-17 | 2011-06-01 | 泉州市东南光电有限公司 | Testing device and method of infrared light source switch valve value of camera based on natural light |
-
2010
- 2010-11-17 CN CN201010564425.7A patent/CN102081297B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03164732A (en) * | 1989-11-24 | 1991-07-16 | Nippon Hoso Kyokai <Nhk> | Method for measuring optical characteristic of lens plate for stereoscopic display |
| CN2682447Y (en) * | 2003-12-15 | 2005-03-02 | 夏雪娇 | Infrared filter automatic starter of camera |
| CN200944174Y (en) * | 2006-06-20 | 2007-09-05 | 何军 | Automatic switching device for vidicon filter element |
| CN201440690U (en) * | 2009-05-20 | 2010-04-21 | 深圳市迪威泰实业有限公司 | Dual-CCD monitoring camera and monitoring system |
| CN201690527U (en) * | 2010-05-20 | 2010-12-29 | 浙江纳特智能网络工程有限公司 | Camera monitoring device |
| CN201781585U (en) * | 2010-09-08 | 2011-03-30 | 安徽兆安电子科技有限公司 | Rapid test box for infrared monitoring camera |
| CN102065317A (en) * | 2010-11-17 | 2011-05-18 | 泉州市东南光电有限公司 | Camera automatic gain effect detection device |
| CN102081298A (en) * | 2010-11-17 | 2011-06-01 | 泉州市东南光电有限公司 | Testing device and method of infrared light source switch valve value of camera based on natural light |
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| CN102081297B (en) | 2013-02-13 |
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Address after: 362000, Fujian Road, Quanzhou economic and Technological Development Zone, 7-12A block Patentee after: Quanzhou Southeast Photoelectric Co., Ltd. Address before: 362000 Fujian province Quanzhou city Qingmeng Technology Industrial Park incubator detai Road No. 1 business building five floor Patentee before: Quanzhou SouthEast Photoelectric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20181117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |