Design And Development Of Broadband Micro-power Protocol Analysis Tool

Broadband power line carrier communication has problems such as wiring difficulties and communication blind spots,whitch cannot meet the business needs of the deeply development of smart grid.Dual-mode technology based on the integration of broadband power line carrier communication and broadband micro-power wireless communication has become the development trend of smart grid communication technology.Broadband micro-power wireless communication technology is still in the research and development stage.In order to monitor the communication information and running state of the network in real time,it is necessary to use a network capture tool to analyze the packets interacted by the communication module.However,there is no tool that can fully analyze broadband micro-power protocol.In order to solve this problem,a broadband micro-power protocol analysis tool is designed and developed,which realizes the functions of data parsing and topology analysis of the network.Firstly,the overall framework of protocol analysis tool is designed based on the requirements of users.And the system is divided into five modules,including data capture,data processing,protocol parsing,protocol analysis,and UI view.Meanwhile,the software development work is completed on the Qt graphical user interface platform.Secondly,in order to solve the problem that most capture tools cannot fully analyze the protocol,further studies are conducted on the visualization of broadband micro-power network information and network topology based on visual analysis technology.For important data information,the message view,tree view,node view,and statistical view are designed to complete the visual analysis of network packets and node information.At the same time,the function of packet filtering is provided to enable users to quickly find key information.For the dynamica network,a real-time network topology analysis method is proposed,which realizes the node topology analysis and topology drawing under different conditions.Due to the fact that force-guided algorithm layout slowly in large networks,an optimization scheme of the algorithm is proposed,which greatly reduces the iteration time of the algorithm.After the networking is completed,two methods of topology recovery are proposed,so that the software can restore the network topology at any time,which improves the practicability of the software.Finally,the function and performance of the protocol analysis tool are verified in the actual test network.It is found that the protocol parsing module has a high accuracy in data parsing.And the topology analysis module can also make correct analysis for different topology changes.The test results show that the protocol analysis tool can solve the problem of real-time monitoring and visual analysis of broadband micro-power network.