基于TTCN-3的宽带载波通信一致性测试系统设计

Design of Broadband PLC Conformance Testing System Based on TTCN-3

电力线载波通信技术正在从窄带向宽带发展,宽带载波通信已成为近年来电力线载波通信研发和应用的热点,为保证不同厂商研发的宽带电力线载波通信设备符合协议规范要求并能够互联互通,对其进行一致性测试十分必要;基于TTCN-3测试框架和Titan开发平台设计了宽带载波通信协议一致性测试系统,提出了一致性测试系统软件和硬件设计方案,阐述了测试系统各部分的实现机制及关键技术;在深入研究宽带载波通信协议的基础上,针对物理层、链路层和应用层分别设计了不同的测试用例,构建测试环境并进行一致性测试,可对被测系统协议实现的正确性进行判决;对推进宽带电力线通信的标准化和互联互通具有积极意义。

Power line communication technology is developing from narrowband to broadband,and broadband power line communication has become a hot spot in the research and application of power line carrier communication in recent years.Protocol conformance test plays a necessary and important role in guaranteeing that broadband power line communication devices meet the standards and achieve interoperability.A broadband PLC conformance testing system is designed based on TTCN-3 framework and Titan development platform.The software and hardware implementation scheme for conformance testing platform is proposed and the mechanisms of each module as well as key techniques are described.Different test cases aiming at PHY layer,MAC layer and APP layer are designed according to broadband PLC protocol,and finally test cases are executed based on testing environment.The work is of significance for promoting the broadband PLC standardization and interoperability.