Whether Lantern Moon falls for you to illuminate the way of surveillance

The day after tomorrow is the 15th month of the first month. After fifteen years, everyone should put down the looseness of the festival and put it into the stressful life of the new year. Here, Xiao Bian first gave everyone a prayer in his old age, wishing everyone a happy New Year and a smooth job!

However, for people in the security industry, Lantern Night may not be a relaxing time. Since Lantern Festival Night is the last night in which many cities allow fireworks to be set off, it can be imagined how stressful the security work is. At the most tiring section of this security person, the security surveillance camera will undoubtedly relieve a considerable part of the security work pressure. Therefore, to ensure the normal use of security cameras, better monitoring work is the desire of many security personnel. Here, Xiaobian made out several common problems and solutions for infrared cameras, hoping to help everyone spend more peaceful nights.

In some cases, the infrared dome camera will have poor illumination at night, and the picture will be blurred or bright white. This situation is generally caused by the unreasonable setting of the machine during installation. In the assembly process, the distance between the light-sensing device and the infrared camera is too large, which results in the deviation of the infrared light sensor and causes the infrared light to start incompletely. This ultimately affects the sharpness of the image. This situation is mainly resolved by adjusting the distance between the photosensitive device and the camera. The interference to the white iris is mainly due to the refraction of the infrared light to the dome. Usually use sponge ring isolation lens and infrared light solution.

In addition, in some cases, infrared cameras generally appear white during night vision, but during the day, everything is normal. This is usually caused by the reflection of the surrounding infrared light. Users should check whether there are any reflectors around the monitor, or if the environment is too narrow.

In the process of infrared cameras, some water vapor will affect the clarity of imaging, or cause “foggy” imaging. This is mainly due to the large temperature difference between the inside and outside of the infrared surveillance camera. To solve this kind of problem, you need to increase the thermal capacity of the infrared camera. Under normal circumstances, the shell will be made into multiple slots.

Infrared camera distortion and color cast. Such failures generally result from two conditions that cause the white balance to be set incorrectly or the lighting conditions in the surrounding environment to change too much. Therefore, in addition to checking the working status of the device, it is also possible to appropriately increase or decrease the light source in the shooting environment to adjust the lighting environment.

The camera's image is distorted or distorted. This situation is usually caused by the problem of the correction circuit of the surveillance camera or the optical lens, or the mismatch of the video cable, the device impedance, and the output impedance of the camera. This situation is usually solved by checking whether the optical lens is normal, or whether the impedance setting and the line are 75Ω.

The camera video has no image display or the image is too dark. In this case, first check the circuit is normal, the polarity is correct, or the video connection is good. For different apertures, manual iris to check whether the device is turned on, automatic aperture to check whether the adjustment is in place and so on.

In addition, the lens is dirty, the voltage is unstable, the transmission distance is too long, electromagnetic interference, etc. will cause the video surveillance image to be unclear. Therefore, this also requires timely maintenance and maintenance during daily use. Finally, I wish you all a safe and peaceful Lantern Festival.