The Research And Practice On Internet Protocol Television Monitoring System In CIMS Of Industrial Enterprises

In the convergent tendency that communication networks followed Internet Protocols, the industrial TV system applying the digital multimedia technology and the local area network technology, has the overwhelming superiority accommodating to an enterprise's information integration managements. This dissertation calls it "Internet Protocol Television Monitoring System". This dissertation main research contents are: In the CIMS supporting subsystem — network subsystem, the application for the industrial Ethernet technology which combines the traditional Ethernet technology and the field bus technology, the network simulation technology, the system software programming technology.The summary of industrial Ethernet technology includes the IP network performance parameters, the performance requirements for hardwares in the industrial locale, and the real-time issue. This part is the technologic foundation of the research on IPTV monitoring system.The network simulation technology is a kind of simulation technologies established the models of network devices, links and protocols, simulated transmission of the network flow, and obtained the network performance data for the network designs or optimizations. NS2 is one of mainstream network simulation tools. This dissertation introduces the constitution of NS2, and the general steps of simulation. By using NS2, the author establishes the simulation model for the IPTV monitoring system, elaborates the network topology and the simulation parameters selection method, programs the simulation scripts. The simulation results include the statistics on IPTD, IPDV, IPLR and IPOT by different numbers of monitoring nodes.According to the open and standardization requirements, the author designs an experimental monitoring system. The author chooses the hardware system, elaborates the distributed architecture of the software system, and chooses the development system. The experimental monitoring system has been tested over a simple network environment. The test contents includes the basic video stream transmission performance, the in-build network statistics, the ICMP test and the Echo test in addition. Its results agree with the network simulation substantially.