Design And Implementation Of Network Test Platform For Broadband Micro-power Wireless Communication System

In order to meet the needs of the construction of ubiquitous power Internet of things,State Grid Beijing Smart core Microelectronics Technology Co.,Ltd.entrusts Chongqing University of Posts and Telecommunications new generation broadband mobile communication terminal system team to jointly develop broadband micro-power wireless communication protocol in line with the relevant standards of the power grid,so as to make up for the defects of low efficiency and poor network stability of existing micropower wireless communication meter reading.Based on the characteristics of the broadband micro-power wireless network and the requirements of the project,this thesis designs and builds a set of wireless network test platform and test scheme which is suitable for the broadband micro-power through the research of protocol consistency test standard,interconnection test standard and the national power grid inspection standard in PLC and micro-power wireless communication.This thesis studies the following three parts in turn:1.The related technologies of broadband micro-power wireless communication are analyzed.The basic theory of protocol testing and the design principle of test cases are discussed,which lays the foundation for the later design of test platform and test set.2.According to the characteristics of broadband micro-power wireless communication system,combined with the actual development situation,the requirements of network test platform are analyzed in detail.According to the requirements,combined with the test framework in ETSI EG 202 81 and ITU-T Y.4500.15,the overall framework of network test platform is constructed.In the test software platform,through the design of virtual instrument and automatic test scheme,improve the feasibility of test and simplify the test operation steps,and realize the test software and hardware platform.3.According to the characteristics of CCO,PCO and STA of broadband micropower wireless communication network nodes,based on the combined finite state machine model and its test case generation algorithm,an interconnection test case is designed to cover the test in state.Based on the method of black box test,the service function test set of broadband micro-power APS layer and DL layer is designed,and the test is covered in function.In addition,the network maintenance test and communication module power off restart test set under broadband micro-power are added to test the robustness of the network under abnormal conditions and further improve the test scheme.From the point of view of engineering implementation,this thesis designs and implements a broadband micro-power wireless communication system network test platform,and through the communication module developed by the test laboratory,successfully completes the stake hanging experiment in the actual environment,verifies that the designed network test platform meets the test requirements of the actual environment,and effectively ensures the communication system to achieve networking,meter reading and upgrading functions as well as the interconnection between the communication modules of different manufacturers in the future.