| The infrastructure construction of the IMS(IP multimedia subsystem)administrative exchange network in Tianjin electric power company has been completed.In order to meet the need of multimedia mobile official business,we launched the pilot project of multimedia mobile cooperative system based on the IMS.This project supports the communication on the public internet better and makes full use of the IMS superiority on the combination of the multimedia information and communication.This paper mainly focuses on the design and realization of multimedia mobile cooperative system based on the IMS network in the Tianjin Electric Power Company.First of all,I comprehensively recommend the systematic characteristics,network architecture and key technologies of the IMS technology.Then I briefly analyze the system architecture,main function modules and the key technologies of mobile multimedia cooperative system.What's more,I deeply analyze the goal of the system,principles of the construction and various requirements.Aiming at the SBC(Session Border Controller)of the IMS,I design the public and local network security gateway to solve the problem of secure interconnection between the public and local network of the IMS administrative exchange network,and realize the call function via the APP based on the IMS.The control and business of the IMS is separated.Based on this feature,I design the Android and IOS mobile terminal APP of the public network.Through the combination of the IMS and the existing system of the company,I put forward a set of practical multimedia mobile cooperative systematic design about user authentication,access control,data integration,service call,etc.Based on the IMS multimedia mobile cooperative system,I finish the application and the research in Tianjin electric power company.Through the test of the system,the correctness and feasibility of the design scheme are verified,so as to effectively enhance the company's information level. |
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