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Aerial refueling scheduling of multi-receiver and multi-tanker under spatial-temporal constraints for forest firefighting

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Chinese Journal of Aeronautics 2024年第5期37卷 71-91,I0001页

作者： Jing HUANG Jiaqi XING Jinrui REN Quan QUAN Youmin ZHANG Department of Information and Control Engineering Xi’an University of TechnologyXi’an 710048China Jiujiang Measuring Test Technology Research Institute Jiujiang 332000China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Xi’an University of Posts&TelecommunicationsShaanxiXi’an 710121China Department of Mechanical Industrial and Aerospace EngineeringConcordia UniversityMontreal H3G 1M8Canada

Forest fires pose a significant threat to human life and property,so the utilization of unmanned aircraft systems provides new ways for forest *** the constrained load capacities of these aircraft,aerial refueling becomes crucial to extend their operational time and *** order to address the complexities of firefighting missions involving multi-receiver and multi-tanker deployed from various airports,first,a fuel consumption calculation model for aerial refueling scheduling is established based on the receiver ***,two distinct methods,including an integrated one and a decomposed one,are designed to address the challenges of establishing refueling airspace and allocating tasks for *** methods aim to optimize total fuel consumption of the receivers and tankers within the aerial refueling scheduling *** optimization problem is established as nonlinear optimization models along with *** integrated method seamlessly combines refueling rendezvous point scheduling and tanker task allocation into unified *** has a complete solution space and excels in optimizing total fuel *** decomposed method,through the separation of rendezvous point scheduling and task allocation,achieves a reduced computational ***,this comes at the cost of sacrificing optimality by excluding specific feasible ***,numerical simulations are carried out to verify the feasibility and effectiveness of the proposed *** simulations yield insights crucial for the practical engineering application of both the integrated and decomposed methods in real-world *** comprehensive approach aims to enhance the efficiency of forest firefighting operations,mitigating the risks posed by forest fires to human life and property.

关键词： Aerial refueling Scheduling Planning Spatial-temporal constraint Firefighting

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DeepONet-Based Bank Angle Profiles Design for Mars Entry with Actuator Constraints

DeepONet-Based Bank Angle Profiles Design for Mars Entry wit...

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2024 China automation Congress, CAC 2024

作者： Tang, Bo Li, Yajing Mei, Jie Wu, Weiren Institute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen Guangdong Shenzhen518055 China Shanghai Institute of Aerospace System Engineering Shanghai201109 China School of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen Guangdong Shenzhen518055 China

ISBN: (纸本)9798350368604

The determination of the bank angle profile is crucial for Mars atmospheric entry guidance. A significant limitation of existing bank angle profile construction methods is their neglect of the dynamic process of the bank angle. This paper introduces a novel parameterized bank angle profile construction method using deep operator networks (DeepONet). Initially, a design strategy for parameterized bank angle profiles, considering the dynamic characteristics of the bank angle, is presented. The bank angle profile is then modeled as an operator dependent on specific parameters. The DeepONet, which is tailor-made for learning operators, is utilized to construct parameterized bank angle profiles of unknown analytical forms. To handle rapid changes in the bank angle, Fourier feature layers are incorporated into the network to encode the time inputs. Numerical simulations demonstrate that the proposed network can effectively approximate the desired bank angle profile. In the guidance design, using the proposed network-based parameterized bank angle profile can effectively reduce the deviation between the predicted and actual flight states. © 2024 IEEE.

关键词： Parameterization

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Discussion on the Design of Low-cost Spacecraft Avionics based on COTS Technology

Discussion on the Design of Low-cost Spacecraft Avionics bas...

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7th International Conference on Electronics Technology, ICET 2024

作者： Chen, Chaoji Yin, Yaobao Yang, Jiang Wang, Dan Dong, Zhenhui Jia, Yuchen Beijing Institute of Spacecraft System Engineering Beijing China Tongji University School of Mechanical Engineering Shanghai China Shandong Aerospace Electronics Technology Research Institute Yantai China

ISBN: (纸本)9798350363951

Because of the benefits of excellent performance, ease of acquisition and low cost, COTS (commercial off-the-shelf) components have been gradually utilized in spacecraft. They will play an increasingly important role in space applications in the future. This study first investigates the situation of COTS technology-based spacecraft avionics both domestically and internationally, analyzing the necessity of COTS technology applied in the space field and its problems, and it illustrates that COTS technology is a significant means of enhancing the performance of spacecraft avionics in the future. Secondly, an intelligent avionics architecture for low-cost and highly reliable spacecraft based on COTS technology is proposed, considering the requirements of spacecraft avionics. Then, aiming at the challenges of using COTS components extensively in space, the reliability assurance methods for COTS components are suggested from the perspectives of reliability design methods and reliability prediction analysis. Finally, an on-orbit application example of the COTS component is provided, which can serve as a reference for application of the other spacecraft. © 2024 IEEE.

关键词： Space applications

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research on the Mapping Relationship between Load Current and Cutting Force of CNC Machine Tools 15

Research on the Mapping Relationship between Load Current an...

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15th International Conference on Signal Processing systems, ICSPS 2023

作者： Li, Xin He, Wanlin Zhao, Hongjie Tang, Weimin Liu, Zheng Zhang, Suyan Yuan, Hao Wu, Qiong School of Mechanical Engineering & Automation Beihang University Beijing100191 China Capital Aerospace Machinery Co. Ltd Beijing100076 China School of Mechanical Engineering & Automation Fuzhou University Fuzhou350108 China Jingdezhen Research Institute of Beihang University Jiangxi333000 China

ISBN: (纸本)9781510675056

To monitor the changes in cutting force during the machining process of machine tools, this article takes ZL205A aluminum alloy as the research object and builds a multi-sensor acquisition system, including cutting force signal, load current signal, and vibration signal acquisition system. Cutting experiments were conducted to obtain cutting force, load current, and vibration amplitude under different process parameters. The time-frequency characteristics of cutting force signals were analyzed. The mapping relationship between cutting process parameters and cutting force, as well as load current and cutting force, was established. This research enables indirect monitoring of dynamic cutting force signals by monitoring load current signals, providing reference and guidance for monitoring dynamic cutting force in actual machining processes and process optimization. © 2024 SPIE.

关键词： Data acquisition

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Toward Enhanced Tracking of Tiny Airborne Objects Using YOLOv8 and Particle Filter

Toward Enhanced Tracking of Tiny Airborne Objects Using YOLO...

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AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

作者： Lee, Jeonghun Cho, Sungwook Shin, Heemin Kim, Seungbum Department of Mechanical and Aeronautical Systems Engineering Cheongju University Chungbuk Cheongju28503 Korea Republic of Department of Aeronautical and Mechanical Engineering Cheongju University Chungbuk Cheongju28503 Korea Republic of Unmanned Aircraft System Research Division Aerospace Research Institute Daejeon34133 Korea Republic of

ISBN: (数字)9781624107238

ISBN: (纸本)9781624107238

The rapid proliferation of civilian drones worldwide has led to numerous issues, including challenges in air traffic management and public safety. In particular, the misuse of illegal drones for unethical activities such as terrorism poses a significant threat, potentially causing catastrophic damage. To mitigate these risks, continuous detection and tracking of drones are essential. Most civilian drones are classified as tiny airborne vehicles, appearing very small in the sky and exhibiting erratic movements, which complicates sustained detection and tracking. To address these challenges, this paper proposes a method that utilizes deep learning object detection technology to extract feature information of objects and continuously detect and track them through probabilistic state estimation. First, the YOLOv8 deep learning model is employed for real-time object detection. The YOLOv8 model effectively detects small, fast-moving airborne objects and acquires their feature information. Subsequently, a particle filter is utilized to track the detected airborne objects by estimating their probabilistic states based on the obtained feature information. Finally, the Hungarian algorithm ensures the optimal matching between detected objects and their tracked states. Experimental results demonstrate that the proposed method significantly improves tracking performance, especially in scenarios involving long distances and rapid movements, compared to existing methods. Consequently, this paper presents a robust and efficient approach for the detection and tracking of tiny airborne objects. © 2025, American institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Drones

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A Variational Bayesian Maximum Correntropy Cubature Kalman Filter with Adaptive Kernel Bandwidth

A Variational Bayesian Maximum Correntropy Cubature Kalman F...

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2023 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2023

作者： Li, Zhenwei Ouyang, Shuaijie Cheng, Yongmei Wang, Huibin Chen, Kezheng School of Automation Northwestern Polytechnical University Xi'an China CSSC System Engineering Research Institute Beijing China School of Aerospace Engineering Zhengzhou University of Aeronautics Zhengzhou China

ISBN: (纸本)9798350316728

This paper focuses on the estimation problem in the presence of non-Gaussian measurement noise encountered in dynamic systems. The proposed solution is based on a variational Bayesian maximum correntropy cubature Kalman filter with adaptive kernel bandwidth that uses the Mahalanobis distance to adapt in real time the kernel bandwidth. The proposed filter is compared to some recent cubature Kalman filtering approaches, using the univariate nonstationary growth model benchmark. The obtained results demonstrate that the proposed method leads to the estimated values less affected by non-Gaussian measurement noises than other recent cubature Kalman-based filter. © 2023 IEEE.

关键词： Bandwidth

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Ground Contact Parameter Estimation Guided Gait Planning for Hexapod Robots

Ground Contact Parameter Estimation Guided Gait Planning for...

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2022 IEEE International Conference on Robotics and Biomimetics, ROBIO 2022

作者： Dong, Guiyu Qin, Ripeng Han, Liangliang Chen, Jiawei Xu, Kun Ding, Xilun Robotics Institute School of Mechanical Engineering and Automation Beihang University Beijing100191 China Institute of Aerospace System Engineering Shanghai Shanghai201108 China

ISBN: (纸本)9781665481090

Environment sensing for legged robots can improve their mobility performance. A foot-ground contact model can be used to evaluate the properties of the robot's contact with the environment. A contact parameter estimator based on artificial neural networks was developed to guide the gait planning of a hexapod robot so that it can achieve higher mobility efficiency. This contact parameter estimator can use acceleration, velocity, and contact force data as inputs and output contact parameters. The estimator avoided using deformations as input which are difficult to measure. Meanwhile, the robot's cost of transport with different contact parameters is tested and recorded. Accordingly, the hexapod robot was guided to choose a better gait shape between cycloid and rectangular. The simulation proved that changes in the gait shape according to the contact parameters can reduce the hexapod's cost of transport. © 2022 IEEE.

关键词： Parameter estimation

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Aerodynamic Performance of Three Flapping Wings with Unequal Spacing in Tandem Formation

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Journal of Bionic engineering 2024年第4期21卷 1662-1676页

作者： Min Chang Ziyi Xu Zengshuang Chen Li Li Xueguang Meng Unmanned System Research Institute National Key Laboratory of Unmanned Aerial Vehicle TechnologyNorthwestern Polytechnical UniversityXi’an710072People’s Republic of China State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace EngineeringXi’an Jiaotong UniversityXi’an710049People’s Republic of China Xi’an Aeronautics Computing Technique Research Institute Aviation Industry Corporation of ChinaXi’an710076People’s Republic of China

To better understand the aerodynamic reasons for highly organized movements of flying organisms,the three-flapping wing system in tandem formation was studied numerically in this *** from previous relevant studies on the multiple flapping wings that are equally spaced,this study emphasizes the impact of unequal spacing between individuals on the aerodynamics of each individual wing as well as the whole *** is found that swapping the distance between the first and second wing with the distance between the second wing and the rearmost wing does not affect the overall aerodynamic performance,but significantly changes the distribution of aerodynamic benefits across each *** the whole flapping cycle,three effects are at *** narrow channel effect and the downwash effect can promote and weaken the wing lift,respectively,while the wake capture effect can boost the *** also shows that these effects could be manipulated by changing the spacing between adjacent *** findings provide a novel way for flow control in tandem formation flight and are also inspiring for designing the formation flight of bionic aircraft.

关键词： Three flapping wings Unequal spacing Aerodynamic performance Tandem formation

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Human Following Robot Based on Object Detection for aerospace Application 1

Human Following Robot Based on Object Detection for Aerospac...

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1st International Conference of Adisutjipto on aerospace Electrical engineering and Informatics, ICAAEEI 2024

作者： Sumari, Arwin Datumava Wahvudi Aryandika, Ahnaf Bagus Purnami, Ndaru Atmi Dermawan, Denny Syamsiana, Ika Noer State Polytechnic of Malang Cognitive Artificial Intelligence Research Group Department of Electrical Engineering Malang Indonesia Adisutjipto Institute of Aerospace Technology Electrical Engineering Study Program Yogyakarta Indonesia Adisutjipto Institute of Aerospace Technology Aerospace Navigation Instrumentation Control Automation and Robotics System Research Group Electrical Engineering Study Program Yogyakarta Indonesia Adisutjipto Institute of Aerospace Technology Electrical Engineering Study Program Aerosp. Digit. Syst. Microprocessor Microcontroller and Programmable Logic Devices Research Group Yogyakarta Indonesia

ISBN: (纸本)9798331507930

In this research, the Human Following Robot (HFR) prototype has been designed and implemented using YOLO v3-Tiny and Tensor Flow Lite on Raspberry Pi hardware named Rewang. The HFR Rewang is designed to assist aircraft technicians by bringing maintenance tool kits to aircraft shelters. Rewang's movement is based on a camera as a vision sensor following the movement of human entities. Image input is processed by YOLO v3-Tiny through the determination of the bounding box, the calculation of Euclidean Distance, and the determination of the pixel value of the camera as the basis of Rewang's movement which is regulated by an L298N driver motor that controls two Direct Current (DC) motors for the left and right wheels. The test results show that Rewang can move at an average speed of 0.18 m/s at 2 m with a travel time of 11 seconds with a light intensity of more than 250 lux. The minimum and maximum distance of object detection is as far as 120 cm and 400 cm, with an object detection accuracy of 95.8%. Rewang allows the HFR to have a larger carrying capacity to bring more complete aircraft maintenance tools and is prospective for other aerospace and general applications. © 2024 IEEE.

关键词： Travel time

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Design and Implementation of Avionic Autonomous Management system for Deep Space Exploration 6

Design and Implementation of Avionic Autonomous Management S...

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6th International Symposium on Autonomous systems, ISAS 2023

作者： Chen, ChaoJi Yin, YaoBao Yang, Jiang Han, Dong Tian, Lin Zeng, Hao Yu, XinXin School of Mechanical Engineering of Tongji University Shanghai China Beijing Institute of Spacecraft System Engineering Beijing China Shandong Aerospace Electronics Technology Research Institute Yantai China Beijing Institute of Control Engineering Beijing China

ISBN: (纸本)9798350316155

Autonomous management technology is an important means to ensure the long-term safety and autonomous operation of deep space exploration spacecraft on orbit. The development of autonomous management technology of some typical foreign spacecrafts is firstly summarized in this paper. And secondly, based on analyzing the needs of autonomous management of deep space exploration spacecraft, the design and management strategy of autonomous management system are proposed. Then the system architecture and engineering implementation of corresponding avionic autonomous management system are given, by taking the trial new-generation manned spaceship as an example. The results of the on-orbit operation demonstrated that the spaceship could realize functions of autonomous orbit control, autonomous management of flight state, autonomous health management of critical equipment, autonomous disposal of modules separation and autonomous control of reentry in case of non-ground intervention, which ensured the safety of spaceship to the greatest extent and effectively improved its reliability of autonomous operation. © 2023 IEEE.

关键词： Safety engineering

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