AFDX网络测试技术研究

航空电子全双工交换式以太网络是一种新型的机载网络,对该网络的测试主要是为了保证数据传输的确定性和可靠性;对AFDX网络的特点进行了分析,提出了AFDX网络的测试需求,涵盖端系统和交换机全部功能和性能的测试;设计了一种命令/响应型测试策略,对测试用例进行设计,并给出了测试方法和步骤;建立起了AFDX网络测试平台,该平台是一个综合化、自动化的平台,可以对测试进程进行管理,自动生成测试报告;文中提出的测试技术已成功应用于工程实践中,可实现自动化测试,节约了时间,提高了效率。

Research on Test Technology of AFDX Network

AFDX(Avionics Full Duplex Switched Ethernet) is a new type of aircraft data network,For the determinism and the reliability of the data transmission,it is important and necessary to do the network testing.This paper analyze the feature of the AFDX network;Propose the test requirement which cover with all of the function and performance of the switch and end system;Bring forward a command and response model test strategy,do the test case design,show the test method and execute the test cases;Build up a AFDX network test platform which is a integrated and automatic test platform with the capability to control the test process and make a test report automatically.This test method has been successfully used in practical applications,can be implemented automatically to save time and improve efficiency.