There are many types of surveillance cameras installed to monitor the mall, currently on the market there are many high imitation camera technology, high imitation camera surveillance installation when in use, compared to the regular camera has a lot of faults, such encounter PTZ Soon dysfunctional or can not use this issue to rotate screen monitor installed here give you an analysis of the specific reasons: 1, too far away when the camera can not operate the keyboard decoder cameras (including lenses) and cloud remote control station. The main reason for this phenomenon is that because the distance is too far, the effect of the operation panel of the control signal will be greatly reduced, in this case the control signal decoder received will be too weak. Then the relay box should be installed in a certain distance to amplify the control signal. Monitoring Maintenance summarize: a conventional services 1. camera repair, replacement, installation, commissioning; 2. camera lens cleaner, dust, angle and sharpness adjustment; 3. monitor power lines and data transmission line maintenance, testing, and maintenance; 4. monitor, control maintenance panel, hard disk recorders, video splitter, matrix and other equipment, maintenance, installation and setup; 5. monitoring systems and equipment optimization: reasonable arrangements to monitor network monitoring center needs 6. monitoring lines, document finishing and records; 7. monitoring system changes, expansion, solution design and construction services. Monitoring Installation Monitoring _ _ Jiaozuo 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!