分区OS与TTE网络之间的时钟同步方法研究  

Research on Clock Synchronization Method Based on Partition Operating System and TTE

作　　者：王宁[1] 牛玥瑶 崔西宁[1] WANG Ning;NIU Yue-yao;CUI Xi-ning(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000

出　　处：《航空计算技术》2024年第1期117-120,共4页Aeronautical Computing Technique

基　　金：航空科学基金项目资助(2022Z071031001)。

摘　　要：随着航空电子系统综合化模块化程度的不断提高,日益增加的软件功能使得系统规模和复杂程度随之增加。为了满足系统高安全、高可靠的性能需求,确保周期任务的顺利执行,提出了一种基于时间触发以太网与ARINC 653分区操作系统的时钟同步优化算法,在传统算法的基础上,分别针对起始点同步与周期性调整两个阶段进行了算法优化。经试验验证,算法能够更加精确地对上下层时钟周期进行同步,有效地缩短了起始点同步时长、提高了周期性调整精度。With the continuous improvement of the integrated and modular level of avionics systems,the increasing software functions have led to an increase in the scale and complexity of the system.In order to meet the high safety and reliability performance requirements of the system,ensure the periodic tasks timely execution,this paper proposes a clock synchtonization optimization algorithm based on TTE and ARINC 653 partition OS.On the basis of the traditional algorithm,the algorithm optimization is carried out for the two stages of start up synchtonization and periodic adjustment.The experimental results show that the algorithm synchronize the clock period of network and OS more precise,shoten the start up synchtonization time and improve the presicion of periodic adjustment.

关 键 词：航空电子系统 TTE网络 ARINC 653分区操作系统 时钟同步算法 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术]