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东营保安公司分享选择红外防水摄像机相关配件的技巧

点击次数:    发布时间:2019-05-20来源:http://www.dyzhongtebao.com
  由于如今社会犯罪比率不断添加,红外线在夜间监视所扮演的角色愈加杰出,不仅金库、油库、军械库、图书文献库、文物部门、监狱等重要部门选用,并且也在一般监控体系中都被选用。乃至居民小区电视监控工程也应用了红外线摄像机。这说明红外防水摄像机的使用率越来越高,已逐步发展成为一种趋势。
  With the increasing crime rate in society, the role of infrared surveillance at night is becoming more and more outstanding. Not only the important departments such as treasury, oil depot, ordnance depot, library, cultural relics department, prison and so on are selected, but also in the general surveillance system. Infrared cameras are also used in residential TV surveillance projects. This shows that the use rate of infrared waterproof camera is getting higher and higher, and it has gradually developed into a trend.
  东营保安公司分享红外防水摄像机选购注意
  Dongying Security Company Shares Attention to Selection and Purchase of Infrared Waterproof Camera1.给出摄像机较低照度的一起,还要给出光圈F的要求值,而变焦镜头一般只给出1:F的较大值,即光圈F的较小值(光圈实践尺寸较大值),F=f/D,那么D为定值,在f焦距拉大10倍时,F变得很大(即光圈实践尺寸变得很小)。
  1. Give the minimum illumination of the camera together with the required value of the aperture F, while zoom lenses generally only give the maximum value of 1:F, that is, the minimum value of the aperture F (the maximum aperture practical size), F = f/D, then D is the fixed value, when the f focal length is increased by 10 times, F becomes very large (that is, the aperture practical size becomes very small).
  2.在使用主动光圈镜头、主动增益控制或主动电子快门摄像机时,镜头光圈F值也会发生变化。例如,在摄像机近处有景象,反射回强光给摄像机,或邻近有灯火照射摄像机,这时摄像机的灵敏度将减小、主动光圈的尺寸将被关小,光通量也将遭到很大影响。
  2. When active aperture lens, active gain control or active electronic shutter camera are used, the F value of lens aperture will also change. For example, when there is a scene near the camera, reflecting strong light back to the camera, or when there is a light illuminating the camera nearby, the sensitivity of the camera will be reduced, the size of the active aperture will be reduced, and the luminous flux will be greatly affected.
  3.摄像机给出的较低照度。这儿的较低照度概念是什么?摄像机发生的视频信号标称值为1V,规范值为0.7V,而较低照度时的视频信号值为1/3-1/2规范植。所以摄像机在较低照度时的图画,决不会“如同白昼相同”.
  3. The minimum illumination given by the camera. What is the concept of minimum illumination here? The nominal value of the video signal generated by the camera is 1V and the standard value is 0.7V, while the minimum illumination of the video signal is 1/3-1/2 of the standard planting. So the picture of the camera at the lowest illumination will never be "the same as the day".
                           东营保安公司
  4.防护罩对红外灯的效果也有影响,红外光在传输过程中,经过不同介质,透射率和反射率也不同。不同的视窗玻璃,特别是主动除霜镀膜玻璃,对红外光的衰减也不同。
  4. The protective shield also affects the effect of infrared lamp. During the transmission of infrared light, the transmittance and reflectivity are different through different media. Different windows, especially active defrosting coated glass, have different attenuation to infrared light.
  随着红外防水摄像机红外夜视体系的迅速发展,红外灯出产供给厂家也会添加,但红灯产品并非象有的人幻想的那样容易,在技术、检测仪器设备等方面条件也不同,期望用户多多加比较,稳重选择。户使用红外防水摄像机红外灯首先要仔细阅读使用说明书,特别是为确保人身设备安全的注意事项。查看前面所讲述的配套性方面是否达到要求,应考虑到的影响要素是否考虑到,如未达到要求,可及时调整所用器材。
  With the rapid development of infrared night vision system for infrared waterproof cameras, infrared light manufacturers will add it. But red light products are not as easy as some people imagine. The conditions in technology, testing equipment and other aspects are also different. We expect users to make more comparisons and make steady choices. Users using infrared waterproof camera infrared lamp first need to carefully read the instructions, especially in order to ensure the safety of personal equipment. Check whether the above mentioned aspects of compatibility meet the requirements, should take into account the impact factors, if not meet the requirements, can adjust the equipment used in a timely manner.
  用户不应私行进步供电电压,由于红外防水摄像机红外灯在设计时,既考虑到其辐照度的充分发挥,又考虑到其安全可靠性。进步供电电压,或许使红外灯焚毁,更不应私行拆改红外灯。假如这样做,出产厂家或许不再担任维修。假如红外防水摄像机红外灯出现问题,应与出产厂家或供货商联络。
  Users should not privately improve the supply voltage, because infrared waterproof camera infrared lamp design, not only take into account the full use of its irradiance, but also consider its safety and reliability. The improvement of power supply voltage may cause the burning of infrared lamps, let alone the private dismantling of infrared lamps. If this is done, the manufacturer may no longer be servicing. If there is a problem with the infrared light of the infrared waterproof camera, contact the manufacturer or supplier.
  5.摄像机在较低照度时发生的图画清晰度,是用电视信号测试卡进行测式的,其黑白相间的条纹,要求黑色反射率近于0%,白色反射率大于89.9%.而我们在现场观察时有时不具备这样的条件,比方:树叶和草地的反射率很低,反差很小,就不易取得清晰图画。
  5. The clarity of the picture when the camera is in the lowest illumination is measured by the TV signal test card. The black and white stripes require that the black reflectance be close to 0% and the White Reflectance be greater than 89.9%. But we sometimes do not have such conditions when we observe on the spot. For example, the reflectivity of leaves and grasslands is very low and the contrast is very small, so it is difficult to obtain a clear picture.
  东营保安公司立足于特种安保领域并兼做门卫、护卫、技防、安检等基础保安业务,打造化国内的安全护卫公司。