Road monitoring cameras are subject to various external forces such as vehicle vibrations and vehicle crashes during daily use, causing changes in the aperture of the camera and blurring the captured image. The identification of the license plate is difficult to identify at night. This makes it difficult to exert the power of the monitoring system, which has caused a certain impact on the normal operation of the operating system.
In the daily maintenance of the equipment, a little trick for camera debugging is explored for your reference. Today's road surveillance cameras generally use JvaSANY (Beiting Baitu, etc.) cameras with a strong light suppression function. A standard lens is installed at the front end of the camera, which enables the imaging of the subject to be captured on the target of the CCD image sensor. On the top, there is a gear with a back focus adjustment. When the camera is shipped from the factory, the back focus is properly adjusted. Therefore, after the front lens is fixed, there is usually no need to adjust the camera. In normal use, it may happen that when the lens focus ring is adjusted to the extreme position, the image still cannot be made clear. In this case, the back focus of the camera needs to be adjusted.
The steps for back focus adjustment are as follows:
1. Loosen the fixed screw of the standard lens on the front of the camera, push the lens to telephoto state by adjusting the Zoom In (Zoom In), take a close-up of a distant object, and then adjust the focus (Focu juvenile close-up image adjustment Hao Xi.
2. Perform zoom out (Zoom Out) as opposed to the previous step to pull the lens back to Wide, and the screen becomes a panoramic image containing the close-up objects described above, but no focus adjustments can be made at this time (Note: If this is the case The image is blurred and the focus cannot be adjusted. Instead, it is ready for the next focus adjustment.
3. Rotate the back focus adjustment ring slightly, repeat the adjustment until the screen is clearest, and tighten the front standard lens fixing screw.
At this point, the camera and lens have been debugged.
In the daily maintenance of the equipment, a little trick for camera debugging is explored for your reference. Today's road surveillance cameras generally use JvaSANY (Beiting Baitu, etc.) cameras with a strong light suppression function. A standard lens is installed at the front end of the camera, which enables the imaging of the subject to be captured on the target of the CCD image sensor. On the top, there is a gear with a back focus adjustment. When the camera is shipped from the factory, the back focus is properly adjusted. Therefore, after the front lens is fixed, there is usually no need to adjust the camera. In normal use, it may happen that when the lens focus ring is adjusted to the extreme position, the image still cannot be made clear. In this case, the back focus of the camera needs to be adjusted.
The steps for back focus adjustment are as follows:
1. Loosen the fixed screw of the standard lens on the front of the camera, push the lens to telephoto state by adjusting the Zoom In (Zoom In), take a close-up of a distant object, and then adjust the focus (Focu juvenile close-up image adjustment Hao Xi.
2. Perform zoom out (Zoom Out) as opposed to the previous step to pull the lens back to Wide, and the screen becomes a panoramic image containing the close-up objects described above, but no focus adjustments can be made at this time (Note: If this is the case The image is blurred and the focus cannot be adjusted. Instead, it is ready for the next focus adjustment.
3. Rotate the back focus adjustment ring slightly, repeat the adjustment until the screen is clearest, and tighten the front standard lens fixing screw.
At this point, the camera and lens have been debugged.
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