Replacement of equipment maintenance service in line to replace the content consists of a replacement, alarm equipment, monitoring software maintenance, DVR equipment and ancillary equipment maintenance. Maintenance service mode 1, the control room computer room environment. 2, the device operating environment. 3, the installation location of all equipment operation. 4, line usage and line laying the path alignment methods. 5, line all interfaces, all the video head, terminal line contacts are secure. 6, software usage, software upgrades. 7, the system data backup situation. In the above work in the implementation process requires the user to provide the appropriate system wiring diagram, standoff point distribution, monitoring point distribution, as well as assist the relevant personnel. Surveillance camera manufacturers to share the recipe to help you solve the problem of camera surveillance cameras camera Backlight basic condition monitoring system is installed along the light of the contract, along the light sensitive CCD cameras will allow uniform backlighting has been shooting taboo, in backlight time, Compared with the brightness of the background, the object being photographed will appear dark, easy to form a shadow, backlit subject too will result in a more intense level of underexposed. First, through the choice of having the corresponding functions surveillance camera surveillance camera manufacturers, improve backlighting phenomenon. The second installation of monitoring systems manufacturers, adjust the position of the entrance to install surveillance cameras to install monitoring systems company, try to avoid direct sunlight from the outside world, can improve the phenomenon largely backlit entrances. Third, by increasing the interior light source illumination, improved backlight phenomenon. Install monitoring system price, installation of monitoring systems, source maintenance provided by Zhengzhou source maintenance Electronic Technology Co., Zhengzhou source maintenance Electronic Technology Co., Ltd. (www.hnxywb.com) strong, credible, in Zhengzhou integrated monitoring systems and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead source maintenance and you work into the brilliant, for a better future!