Hierarchical Disturbance Propagation Mechanism and Improved Contract Net Protocol for Satellite TT&C Resource Dynamic Scheduling  

作　　者：Zhiqing Xiang Yi Gu Xinwei Wang Guohua Wu 

机构地区：[1]the School of Traffic and Transportation Engineering,Central South University,Changsha 410075,China [2]the School of Engineering and Materials Science,Queen Mary University of London,London,E14NS,UK [3]the School of Automation,Central South University,Changsha 410083,China

出　　处：《Complex System Modeling and Simulation》2024年第2期166-183,共18页复杂系统建模与仿真（英文）

基　　金：This work was supported in part by the National Natural Science Foundation of China(No.62373380).

摘　　要：The practical engineering of satellite tracking telemetry and command(TT&C)is often disturbed by unpredictable external factors,including the temporary rise in a significant quantity of satellite TT&C tasks,temporary failures and failures of some TT&C resources,and so on.To improve the adaptability and robustness of satellite TT&C systems when faced with uncertain dynamic disturbances,a hierarchical disturbance propagation mechanism and an improved contract network dynamic scheduling method for satellite TT&C resources were designed to address the dynamic scheduling problem of satellite TT&C resources.Firstly,the characteristics of the dynamic scheduling problem of satellite TT&C resources are analyzed,and a mathematical model is established with the weighted optimization objectives of maximizing the revenue from task completion and minimizing the degree of plan disturbance.Then,a bottom-up distributed dynamic collaborative scheduling framework for satellite TT&C resources is proposed,which includes a task layer,a resource layer,a central internal collaboration layer,and a central external collaboration layer.Dynamic disturbances are propagated layer by layer from the task layer to the central external collaboration layer in a bottom-up manner,using efficient heuristic strategies in the task layer and the resource layer,respectively.We use improved contract network algorithms in the center internal collaboration layer and the center external collaboration layer,the original scheduling plan is quickly adjusted to minimize the impact of disturbances while effectively completing dynamic task requirements.Finally,a large number of simulation experiments were carried out and compared with various comparative algorithms.The results show that the proposed algorithm can effectively improve the solution effect of satellite TT&C resource dynamic scheduling problems,and has good application prospects.

关 键 词：satellite tracking telemetry and command(TT&C) dynamic resource scheduling bottom-up mechanism heuristic strategy contract net protocol algorithm 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]