The Design And Implementation Of A Wireless Access Router Testing System Based On Recovering Scene

With the rapid growth of mobile data service demands,the construction of wireless network is developing gradually towards a direction of high bandwidth,high efficiency and low cost.The importance of wireless access routers has become increasingly prominent in the large-scale deployment of wireless local area network(WLAN).Therefore,to improve the quality of the wireless router,various tests have been conducted to the device and improvements have been made after a careful analysis of the tests' results.However,most of the tests carried out by the manufactures are conducted in a closed clean laboratory environment,which is greatly different from the actual application scenario,and as a result of which,the test results become less credible for reference.In order to improve the accuracy and reliability of the tests,reduce the scene differences between the tests and the actual environment and to collect effective test data for product performance improvement,this thesis analyzes the requirements of a wireless router test system,proposes and realizes a design of wireless router test system that is based on scene restoration.By collecting and transmitting the wireless signals in the real environment,this test system can provide a laboratory environment that is the same with the actual application environment and conduct related wireless products tests.The main work is as follows:(1)Proposes a design scheme of wireless router test system based on scene restoration.The paper analyzes the demands of the system first,and then proposes an overall design of the system by establishing the system structure,functional modules,workflows and the structure of the database table.(2)Proposes methods of wireless signal acquisition,backhaul and restoration in the test system.The methods mainly are:modifying the bottom program of the wireless router and making it the signal acquisition device to collect wireless signals and transmit them to the server;using triangle localization algorithm to position and analyze the signals collected;according positioning results,restoring the position of the wireless signals collected and realizing scene restoration in the laboratoryby making use of the signal projectors to emit signals with corresponding strength and frequencies.(3)Compiles test case library and test scriptsfor both single device and network environment test according to their specific requirements for wireless access router,which is to test the functions and performance of the device.(4)Gives a detailed description of the implementation of several key points of the testing system.Tests and verifies the functions of the system from the aspects of scene restoration and calling test cases from the test case library.