Monitoring system monitoring system consists of the monitoring system software, monitoring host, front camera, composed of three parts elevator monitoring maintenance, transmission line transmission line into the video, feet line transmission, power transmission systems, control line transmission. Maintenance Equipment Overview: 1. an industrial-type hard disk recorders, installed monitoring systems for windowsXP maintenance, configuration, 512 RAM, 17-inch display, the current user is equipped with 14 cameras in use. 2. Monitoring software comes with a 16-channel monitoring software to monitor maintenance offer, its main functions include monitoring, recording, image capture, video playback, monitoring software is currently set different permission levels in order to prevent non-account management operations. 3. The front of the camera is divided into two types: 3.1 Video line transmission Camera: The camera lens control signals are directly connected to the control room, the camera power transformer for the front (~ 220V turn DC12v) supply. 3.2 twisted road Camera: The camera lens is attached to the control signal after Balun turn is connected to the control room, the camera power transformer for the front (~ 220V turn DC12v) supply. DVR can not control PTZ possible reasons: 1. do with BNC output, N and PAL format selection is not correct, the image becomes black and white 2. DVR and monitor impedance mismatch 3. The video transmission distance is too far or video transmission line attenuation too 4. DVR color, brightness, etc. are not set correctly a few minutes after starting the DVR will automatically reboot or frequent crashes DVR can not control PTZ possible reasons: 1. The input voltage is unstable or too low 2. jumpers Incorrect 3. Hard disk has bad bad enough power switching power supply 4. 5. 6. heat front-end video signal instability or bad sectors hard line, too much dust, the machine is too harsh operating environment monitoring elevator maintenance, monitoring, maintenance, source Maintenance is 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!