检索结果-内蒙古大学图书馆

8th International Conference on Electromechanical control Technology and transportation, ICECTT 2023

作者： Bo, Ding Yong, Yin Key Laboratory of Marine Simulation & Control for Ministry of Transportation Dalian Maritime University China

ISBN: (纸本)9781510668331

With the shipping market still sluggish, the shipping industry has to pay attention to energy saving and emission reduction. In order to reduce the operating costs of ships, many shipping companies have opted for a reduced speed sailing strategy to reduce the consumption of main engine fuel, thus achieving energy savings and reducing the operating costs of ships. Therefore, selecting the best speed for a ship is the key to achieving speed reduction. In this paper, we study the segmental speed optimisation of ocean-going vessels and its intelligent algorithm, which provides the theoretical basis and technical support for shipping companies to improve the economy of ship operation. First, the meteorological data of the target ship over time was obtained by obtaining the meteorological information of the target route from the European Centre for Medium-Range Weather Forecasts and performing linear interpolation. Then, based on the theory of temporal clustering, segmental clustering of the ship's stall speed values in wind and waves was performed, and the target route was divided into 23 segments by combining the physical turning points of the ship. A segmental speed optimisation model is developed in this paper with the aim of minimising the fuel consumption of the main engine during the voyage. Finally, an intelligent segmental speed optimisation algorithm based on a genetic simulated annealing algorithm is proposed and the model is solved. The segmental speed optimisation model is solved and simulated according to the target route of the target ship selected in this paper. The simulation results show that the fuel consumption of the main engine of the voyage is reduced by 49.4t, which is 2.25% of the total consumption before optimisation, when the optimal segmental speed strategy is adopted. © 2023 SPIE.

关键词： Operating costs

来源：评论

学校读者我要写书评

暂无评论

USV's automatic collision avoidance based on improved dynamic potential field method

USV's automatic collision avoidance based on improved dynami...

引用

2021 International Conference on Security, Pattern Analysis, and Cybernetics, SPAC 2021

作者： Nie, Hongbo Ren, Junsheng Ren, Hang Simulation and Control of Transportation Industry Dalian Maritime University Key Laboratory of Maritime Dynamic Dalian China

ISBN: (纸本)9781665443227

Nowadays unmanned surface vessel (USV) automatic collision avoidance technology in a dynamic environment is getting increasingly concern in the intelligent navigation field. And taking USV's dynamic characteristics, COLREGs (International Regulations for Avoiding Collisions at sea), and the complexity of the marine environment into account is a trend of USV automatic collision avoidance technology. Based on the traditional potential field approach and COLREGs, this improved potential field model designed the collision avoidance algorithm integrated with rules, considered collision action timing, steering angle amplitude, and resume timing. More actually, the novel algorithm divided the collision avoidance process into three stages: track keeping, collision avoidance, and course resumption. At last, the simulation results show the feasibility and availability of collision avoidance. © 2021 IEEE.

关键词： Collision avoidance

来源：评论

学校读者我要写书评

暂无评论

Research on Path Planning of Unmanned Vehicle Based on Improved Artificial Potential Field Method 5

Research on Path Planning of Unmanned Vehicle Based on Impro...

引用

5th International Conference on Intelligent control, Measurement and Signal Processing, ICMSP 2023

作者： Xu, Longchen Yin, Yong Zhao, Yanjie Zhang, Lunping Dalian Maritime University Key Laboratory of Marine Simulation & Control for Ministry of Transportation Dalian116026 China China Ship Scientific Research Center JiangSu WuXi214082 China Taihu Laboratory of Deepsea Technological Science JiangSu WuXi214082 China

ISBN: (纸本)9798350336030

An improved method is presented to solve the problems of local optimum and poor real-time performance of conventional artificial potential field method on route planning of unmanned surface vehicles. This method introduces a new repulsive potential field function and adds a regulatory factor. In order to limit the active area, the boundary repulsion field is introduced. By adjusting the boundary repulsion factor and the adjustment factor, the algorithm can be better prevented from falling into local optimum and the optimization efficiency can be improved. This method is simulated in Matlab and compared with traditional algorithms. The test results show that compared to traditional algorithms, using this method for path planning can shorten the range by 3.1%, have a relatively small curvature, reduce the turning point by 33.3%, and have a smoother path, which has broad application prospects. © 2023 IEEE.

关键词： Motion planning

来源：评论

学校读者我要写书评

暂无评论

Online non-parametric modeling for ship maneuvering motion using local weighted projection regression and extended Kalman filter

Online non-parametric modeling for ship maneuvering motion u...

引用

Data Driven control and Learning Systems (DDCLS)

作者： Wancheng Yue Junsheng Ren Weiwei Bai Laboratory of Maritime Dynamic Simulation and Control of Transportation Industry Dalian Maritime University Dalian Dalian Key Laboratory of Safety & Security Technology for Autonomous Shipping

This paper proposed a method of online non-parameter identification of nonlinear ship motion systems. Firstly, we use Mariner to generate a certain amount of ship motion data to train the LWPR model. Then the ship travels along a set track. During this process, the sensors continuously obtain the distance, radial velocity and azimuth of the ship relative to the ship, and then completes the construction of simulation data. Next, the performance of the algorithm is verified which uses the Kalman filtering framework. Finally, the estimated value is further used for updating the LWPR model to achieve the purpose of online learning, and the updated model will be used for the next prediction. The experimental results show that the online modeling and tracking method proposed in this paper has higher tracking accuracy than the parameter estimation techniques.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A Survey of Vision-based Object Detection

A Survey of Vision-based Object Detection

引用

Image Processing, Computer Vision and Machine Learning (ICICML), International Conference on

作者： Naiming Ge Yin Yong Key Laboratory of Marine Simulation &Control for Ministry of Transportation Dalian Maritime University Dalian China

ISBN: (纸本)9781665464697

As one of the most basic and challenging core tasks in computer vision, target detection has been a hot research field in the world. Firstly, this paper summarizes the appearance and development of obstacle perception research methods based on vision at home and abroad. And the historical development process and branches of target detection are introduced in detail. Finally, summarize the current development.

关键词： Deep learning Support vector machines Computer vision Training data Object detection Feature extraction Classification algorithms

来源：评论

学校读者我要写书评

暂无评论

Research on Path Planning of Unmanned Vehicle Based on Improved Artificial Potential Field Method

Research on Path Planning of Unmanned Vehicle Based on Impro...

引用

Intelligent control, Measurement and Signal Processing and Intelligent Oil Field (ICMSP), International Conference on

作者： Longchen Xu Yong Yin Yanjie Zhao Lunping Zhang Key Laboratory of Marine Simulation & Control for Ministry of Transportation Dalian Maritime University Dalian China Intelligent Ship Application and Simulation Technology navigation simulation and navigation intelligence China Ship Scientific Research Center WuXi JiangSu Taihu Laboratory of Deepsea Technological Science WuXi JiangSu

An improved method is presented to solve the problems of local optimum and poor real-time performance of conventional artificial potential field method on route planning of unmanned surface vehicles. This method introduces a new repulsive potential field function and adds a regulatory factor. In order to limit the active area, the boundary repulsion field is introduced. By adjusting the boundary repulsion factor and the adjustment factor, the algorithm can be better prevented from falling into local optimum and the optimization efficiency can be improved. This method is simulated in Matlab and compared with traditional algorithms. The test results show that compared to traditional algorithms, using this method for path planning can shorten the range by 3.1%, have a relatively small curvature, reduce the turning point by 33.3 % , and have a smoother path, which has broad application prospects.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An Environmentally Friendly Integration control Model Based on Multi Agent System and a Novel Stackelberg Games in Mixed Networks

SSRN

引用

SSRN 2023年

作者： Yang, Hang Ma, Wanjing Cheng, Rongju Wu, Bing Markos, Papageorgiou Zheng, Pengjun Faculty of Maritime and Transportation Ningbo University Ningbo315211 China Key Laboratory of Road and Traffic Engineering of Ministry of Education Tongji University Shanghai201804 China Dynamic Systems and Simulation Laboratory School of Production Engineering and Management Technical University of Crete Chania73100 Greece

The freeways and surface streets form the mixed network, which plays a more and more significant role in urban transportation system. With the repaid increase in travel demand in recent years, the evaluation of urban traffic control strategy is no longer limited to the improvement of efficiency, and gradually pays attention to the assessment of traffic operation on the environment impact under different strategies. Both of the travel costs reduction and vehicle emission estimation should be considered in an integrated model. Two main points are found for further improvement in the existing research. Firstly, a pure system-optimization-oriented framework, in which the leader-follower role is set strictly between authority and drivers in bi-level programming model, doesn’t fully consider the users’ routing influence to the optimal strategy. Secondly, the microscopic vehicle emission models and macroscopic traffic flow models cannot be integrated with each other directly without interface. A novel Stackelberg Games Model, which can exchange the countermeasure role between leader and follower dynamically, is proposed to minimize the number of stop&go of all the vehicles by an Agent based reinforcement learning algorithm. A LCMVTM model is designed to interact the microscopic emission variables and macroscopic traffic flow variables, as well as assessing the simultaneous emission performance. The users’ compliance rate is chosen as the trigger index of role-change behavior. All optimizations are calibrated in a model predictive control controller under different control frameworks. The results show that the proposed model obtains the optimal total travel cost and emission performance compared with other benchmarks. The role-change procedure lowers the numbers of stop&go and ensures the compliance rate to be kept in an acceptable range, which contributes to reducing the total emission and stabilizing the emission rate in the peak hour. Further, the Lyapunov second method

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

Vessel Scheduling Optimization in Different Types of Waterway 8th

Vessel Scheduling Optimization in Different Types of Waterwa...

引用

8th International Symposium on Information Fusion and Intelligent Geographical Information Systems, IF and IGIS 2017

作者： Zhang, Xinyu Chen, Xiang Xu, Changbin Li, Ruijie The Key Laboratory of Nautical Dynamic Simulation and Control of Ministry of Transportation Dalian Maritime University Linghai Rd.1 Dalian116026 China

ISBN: (纸本)9783319595382

With the continuous development of maritime-hardware systems, intelligent decision making in port transport becomes increasingly more important. There are three types of waterways in China, which is specific about one-way waterways, two-way waterways, and compound waterways. Modelling of vessel-scheduling optimization in ports aims at giving a concrete contribution to efficient, safe, and environmentally friendly maritime transport. The model will service to innovative the e-navigational shipping industry, which can lay the groundwork for a future vessel traffic service (VTS). These studies assess the effects of channel and berth resources to improve the operation efficiency of ports using a multi-objective vessel scheduling-optimization model. Taking the minimum total scheduling and waiting times of vessels, the model was established based on these waterways by considering safety, efficiency, and fairness. To solve the proposed model, a multi-objective genetic algorithm (MOGA) was used in this paper. Compared with the first-come, first-served (FCFS) scheduling method, the capacity-conversion times of vessels entering and leaving a port and the total scheduling time are decreased efficiently. These works contribute to improving the safety and optimization of ship scheduling catering to the intelligence trends of future maritime service portfolios (MSP). © Springer International Publishing AG 2018.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Generation algorithm of radar simulation data based on electronic chart data 5

Generation algorithm of radar simulation data based on elect...

引用

5th International Conference on Computer Engineering and Networks, CENet 2015

作者： Chen, Hua Zhang, Xinyu Yao, Shun Xu, Changbin Key Laboratory of Maritime Dynamic Simulation and Control of Ministry of Transportation Dalian Maritime University Dalian116026 China Faculty of Infrastructure Engineering Dalian University of Technology Dalian116024 China

In order to generate a continuous radar simulation image to meet the practical need of navigation simulator, a method is presented to generate radar simulation data extracted from multi-scale S-57 standard electronic charts. In this paper, outliers index algorithm based on forward distance is presented firstly to clip the boundary line. Then buffers are built to merge and de-duplicate data according to characteristics of the data fragmentation. Finally, the average edge-matching method and the attenuation edge-matching method based on error distribution theory are provided to connect the gap automatically between two images according to the scale and the data density of charts. In this paper, 13 pieces of S-57 standard electronic charts around Rizhao Port are taken as an example. The simulation results show that the radar image is clear and the line is smooth, which can reach the purpose of physical and logical seamless contiguity of the radar image. In conclusion, the generated radar simulation data meet the requirements for continuity of the radar simulation image in the navigation simulator. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Radar imaging

来源：评论

学校读者我要写书评

暂无评论

The vessel schedule optimization based on particle swarm optimization algorithm 5

The vessel schedule optimization based on particle swarm opt...

引用

5th International Conference on Computer Engineering and Networks, CENet 2015

作者： Chen, Xiang Zhang, Xinyu Liu, Tieshu Lin, Jun Yao, Shun Key Laboratory of Maritime Dynamic Simulation and Control of Ministry of Transportation Dalian Maritime University Dalian116026 China Faculty of Infrastructure Engineering Dalian University of Technology Dalian116024 China Vessel Traffic Service of Tianjin Maritime Safety Administration Tianjin300457 China

Marine transportation quality is largely affected by the port service level;however, the contextual inquiry shows that the vessel schedule is now a stage of manual schedule. The situation when the vessels gather inbound or outbound may cause port congestion, especially in some adverse weather. Based on the analysis of vessel schedule in the port, this paper proposes a mathematic model for vessel schedule in one-way fairway. In order to calculate the model, we design a code based on the particle position and use discrete particle swarm optimization (DPSO) algorithm to get the schedule order. The simulated test verifies that the algorithm is completely convergent in 150 generation and the maximum waiting time is 117 minutes. The result demonstrates that it can reduce the waiting time when compared with the "First-Come, First-Served" rules. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Particle swarm optimization (PSO)

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：