Design And Implementation Of Improvement Schemes For A Network Real-Time Video Monitoring System

An existing network real-time video monitoring system has been developed according to the network topology design. System has formed preliminarily and can already achieve real-time network monitoring. But with system’s existing problems and new requirements putting forward, this paper firstly lists and maintained the places in system to be corrected. Then perfect and upgrades in view of each new demand. In order to make the new system better adapt to the mobile Internet, we innovatively design and implement a new streaming media delivery server, replacing the Darwin server and to realize the relay of the automatic controls.First of all, the improvement schemes for system’s problems include as follows: modify and perfect the report mechanism agreement from video source to catalog server. Reconstruction the communication threads management and surveillance mechanism to completely solve abnormal dropped problems. All these massages may as well save as logs, for system administrator to check at any time. Give out some solutions for the proxy server’s improvement.Second, the improvement schemes for system’s new demands includes as follows: adapt Yellow River video source’s new functions in distinguishing primary & secondary streaming, multi paths to upload stream, and distinguishing between active and passive media stream types. Modify system’s user registration and grouped mode management. Design and integrated alarm program. Add PTZ control for PC client users. Design and integrated monitoring platform programs for Shenzhen guests’ requirements. Add the control switches for video sources. Increase the video recorded and playback functions, etc.Finally, the improvement schemes for system’s adaption for new generation mobile network mean that in order to reduce bandwidth for wireless uploading, system needs to set a counter for switching video relay automatically. In order to make sure the counting accuracy for many watch ends and adapt browsers compatibility, this paper innovatively designs and implements new streaming delivery server to replace original Darwin server. During the process of design, system should not only realize the media stream relay management and forwarding management, but aslo resolve router port mapping problems and realize "private nets through" function. It may as well design a program to test real-time net status so as to define the streaming data buffer size adaptively and RTCP statistics back to send for buffer management function design, etc.In all, by way of the improvement schemes above, this paper shows an in time alarming, simply operated, wide scrope monitoring, convenient installed, less cost maintaining and easily debugging system which is a new type network realtime video monitoring system.