FAQ video surveillance video surveillance is an important part of the social security system of law and order, it is a comprehensive system of prevention ability. Video surveillance system has been used in various fields of its intuitive, accurate, timely and rich information content and widely used in many occasions. In recent years, with the rapid development of computer, networking and image processing, transmission technology, video surveillance technology has made leaps and bounds. Because of its weak system is mainly composed of electronic equipment, systems problems arise during installation, use. To users and works to cause unnecessary trouble. To improve the efficiency of camera monitoring maintenance, to ensure the normal operation of the monitoring system, combined with a rich source maintenance monitoring system maintenance experience, the monitoring system FAQ CCTV maintenance, the following description may DVR can not control PTZ The reason: a front-end PTZ failure 2, PTZ settings, connections, installed incorrectly 3, DVR 4 PTZ settings are not correct, PTZ decoder and DVR protocol mismatch 5, then a plurality of decoded When the device, PTZ decoder AB line needs the most remote plus 120 ohm resistor to eliminate reflections and impedance matching, otherwise it will create instability 6 PTZ control, real-time image problem is too far away from intelligent monitoring maintenance companies, such as video image color brightness distortion and serious wired surveillance systems to monitor maintenance, the camera must enter through the video cable to the DVR or video capture card or monitor. Here between the camera and DVR, etc. are connected via video cable, then among wireless video surveillance system, simply connect the camera's video cable to the analog wireless transmitter at the end remote monitoring center has a wireless video receiver output analog video signal is connected to the VCR via the video cable Win rate, video capture cards. Monitoring how much maintenance | Gongyi monitoring maintenance | 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!