引用格式:李佳庆,陈水忠,魏刚,等.基于时间敏感网络的门控调度算法研究[J].电光与控制,2023,30(3):58-62.LIJQ,CHENSZ,WEIG,etal.Researchongatingschedulingalgorithmbasedontimesensitivenetwork[J].ElectronicsOptics&Control,2023,30(3):58-62.基于时间敏感网络的门控调度算法研究李佳庆1,2,陈水忠2,魏刚2,李昕2(1.光电控制技术重点实验室,河南洛阳471000;2.中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000)摘要:时间敏感网络在标准以太网的基础上通过增加高精度时间同步、资源预留及路径控制、流量整形和业务调度等一系列关键技术,能够保证数据传输的实时性和可靠性。然而,启发式算法在实现门控调度时,数据的周期比过大会导致缓存容量增大和相同优先级数据同时、同向传输时无控制调度等问题。为此,优化改进了门控调度的启发式算法,通过采取数据周期感知和输出缓存长度感知循环等技术,解决了缓存容量不足和时延抖动等问题。仿真结果表明,与传统的启发式算法相比,所提算法在数据周期比超过60倍时能有效减少门控列表90%的存储空间,在相同优先级数据传输情况下平均时延抖动降低了约50%。关键词:时间敏感网络;网络传输;门控调度;门控列表;启发式算法;时延抖动中图分类号:TP393.11文献标志码:Adoi:10.3969/j.issn.1671-637X.2023.03.011ResearchonGatingSchedulingAlgorithmBasedonTimeSensitiveNetworkLIJiaqing1,2,CHENShuizhong2,WEIGang2,LIXin2(1.ScienceandTechnologyonElectro-OpticalControlLaboratory,Luoyang471000,China;2.LuoyangInstituteofElectro-OpticalEquipment,AVIC,Luoyang471000,China)Abstract:OnthebasisofstandardEthernet,TimeSensitiveNetwork(TSN)canensurethereal-timeandreliabilityofdatatransmissionbyaddingaseriesofkeytechnologiessuchashigh-precisiontimesynchronization,resourcereservationandpathcontrol,andtrafficshapingandservicescheduling.However,whenheuristicalgorithmrealizesgatingscheduling,theexcessivecycleratioofdataleadstotheproblemsofincreasedcachecapacityanduncontrolledschedulingwhendatawiththesamepriorityaretransmittedinthesamedirectionatthesametime.Therefore,theheuristicalgorithmofgatingschedulingisoptimizedandimproved,andtheproblemsofinsufficientcachecapacityanddelayjitteraresolvedbyadoptingtechnolog...