| Video surveillance networking is the integrated network system to realize connecting and controlling of different equipment and system.At present,the Standard compliance testing of network equipment and system is increasing exponentially,the test includes two parts of the network protocol and streaming parameters of the tested object.The testing result has been an important method to verify the standardization of network equipment and system during equipment selection and project acceptance.The traditional test mode is directly connected to a single device under test by a single testing server.The capabilities of resource utilization and concurrent test are greatly limited,and the tester must manually capture the SIP signaling,and the compliance of message content checked one by one,which virtually increases the uncertainty and labor costs of the test.In view of the above problems,this paper studies and designs a video surveillance networking test system with high concurrency,scalability,automatic judgment and stable performance,which is a very realistic research topic.According to the standard requirements and practical application requirements,a multi-task,scalable and automated video surveillance networking test system has been designed and implemented.The research content of this paper mainly includes:1、Based on the analysis of the research on the automated test program at home and abroad,the theoretical research on the information transmission,exchange and control technology of the video surveillance network system is carried out.The design requirements are put forward for the automation and scalable test architecture that the traditional test mode does not have,and the overall design of the test system has been formed.2、For the design requirements of automatic capture of test objects and automatic determination of test results,the main functional modules of the platform are analyzed and designed in detail.By constructing the SIP signaling protocol stack,registering the MD5 encryption process,analyzing media stream,storing and exporting the result etc.,the identity authentication of the tested platform or device are realized,and the test result is automatically determined,and the integrated control and display of each test module of the automated test platform is completed.3、For further research on the expansion capabilities of the test platform,virtualization applications and traffic prediction algorithms have been in detail researched,designed and implemented.Based on the bashbased Shell programming method,the minimum test unit construction can be replicated.Based on the traditional port traffic monitoring,the Markov chainbased predictive traffic algorithm is proposed,and the simulation model is validated by simulation.4、Feasibility verification carries out in an expandable test system based on an automated test platform.A large number of networking tests were conducted with multi-model networking platforms and equipment of domestic mainstream security vendors,and the test results were described in detail.The system was verified to meet the standard requirements and practical application requirements.The test results were accurate and reliable,and had good expansion performance and application value.The innovation of this paper includes:(1)The SIP protocol stack and media stream decoding and analysis module for automatic parsing and judging are constructed.The authenticated registration mechanism for multi-device access is designed.The interface function and integration and presentation with each application module are implemented by MFC framework.(2)On the basis of completing the automated test platform,through the research of virtualization architecture,a replicable test unit model is proposed,and a scalable test system based on minimization test unit is built.Large-scale test system deployment can be accomplished by minimizing replication of test units.Based on Markov chain,a kind of network traffic prediction algorithm is proposed and verified by simulation. |
PDF Full Text Request