基于WLAN的无线分布式测试系统

发布时间：2018-04-28 21:39

本文选题：分布式测试系统 + 无线传输　；参考：《中北大学》2014年硕士论文

【摘要】：随着时代的发展，测试环境越来越复杂,对测试系统提出的要求也越来越高。分布式测试系统能够通过局域网对位于不同位置的测试设备进行集中管理，满足新形势下对测试系统提出的要求，成为当前测试领域研究的热点。无线通信技术具有有线数据通信所无法比拟的便捷性，在近年来得到突飞猛进的发展，因此研究基于无线的分布式测试系统具有非常重要的实践意义。本文介绍一种基于WLAN的无线分布式测试系统，成功将无线通信技术与分布式测试系统融合到一起，充分发挥分布式测试系统便于集中管理的优点，结合无线灵活性的特点，使得测试系统完全胜任复杂场信号的测试，降低了系统构建成本，解决了布线困难、组网不便以及扩展性差的问题。本文主要对测试节点的设计和无线网络构建进行了研究。首先介绍了分布式测试的发展与现状，而后对分布式测试系统的组成进行了详细介绍，，为了解决有线传输灵活性差带来的问题，提出了基于WLAN的无线分布式测试系统。对测试系统的构建做了主要研究，并对网络拓扑结构进行选择，随后重点介绍了测试节点的设计，包括无线模块的选型和接口电路的设计，并对测试节点的测试性能和无线传输性能进行了试验。通过学习WLAN组网的相关理论，对无线链路损耗、覆盖方式、地址分配等做了相应的研究，随后根据项目需求对相关的无线设备进行选型，搭建了基于WLAN网络的无线分布式测试系统，最后通过试验对无线网络的相关性能，如覆盖角度、传输速率等指标进行测试。试验结果表明该系统拥有很好的可靠性和稳定性，完全满足课题的需求，对于恶劣环境下的场信号测试有着重要的应用价值。
[Abstract]:With the development of the times, the test environment is becoming more and more complex, and the requirements of the test system are becoming higher and higher. The distributed test system can centrally manage the test equipment in different locations through local area network (LAN) and meet the requirements of the test system in the new situation. It has become a hot research topic in the field of testing. Wireless communication technology is more convenient than wired data communication, and has been developed rapidly in recent years. Therefore, it is of great practical significance to study distributed testing system based on wireless. In this paper, a wireless distributed testing system based on WLAN is introduced. The wireless communication technology and distributed test system are successfully combined together, and the advantages of centralized management of distributed test system are fully brought into play, and the characteristics of wireless flexibility are combined. The test system is fully capable of testing complex field signals, reduces the cost of system construction, and solves the problems of difficult wiring, inconvenient networking and poor expansibility. This paper mainly studies the design of test nodes and the construction of wireless network. This paper first introduces the development and present situation of distributed testing, then introduces the composition of distributed test system in detail. In order to solve the problem caused by poor flexibility of wired transmission, a wireless distributed testing system based on WLAN is proposed. The construction of the test system is studied, and the network topology is selected. Then, the design of the test node is introduced, including the selection of wireless module and the design of interface circuit. The test performance and wireless transmission performance of the test node are tested. By studying the relevant theory of WLAN networking, the wireless link loss, coverage mode, address allocation and so on are studied, and then the relevant wireless devices are selected according to the project requirements. A wireless distributed testing system based on WLAN network is built. Finally, the correlation performance of wireless network, such as coverage angle, transmission rate and so on, is tested through experiments. The experimental results show that the system has good reliability and stability and meets the requirements of the subject completely. It has an important application value for the field signal testing in the harsh environment.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN925.93;TP274

【引证文献】