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Journal Article 17

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mobile robot 2

obstacle avoidance 2

3-UPU (universal-prismatic-universal joint) 1

Adaptive driving scenarios 1

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Collision avoidance 1

Cooperative collision avoidance system (CCAS) 1

Corner-turning behavior 1

Crowd simulation 1

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Decision-making 1

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Research on Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Engineering doi: 10.1016/j.eng.2023.07.018

Abstract: avoidance trajectories that conform to real driver behavior habits.In addition, owing to the strong time-varying dynamic characteristics of obstacle avoidance scenariosTherefore, an anthropomorphic obstacle-avoidance trajectory planning strategy for adaptive driving scenariosavoidance with the weight of the optimization function, and an anthropomorphic obstacle avoidance trajectoryavoidance and the state of the vehicle.

Keywords： Obstacle avoidance trajectory planning     Inverse reinforcement theory     Anthropomorphic     Adaptive driving    

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The Shortest Path for Mobile Robots in Obstacle Avoidance

Guo Ge

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 70-75

Abstract:

An obstacle avoidance strategy for mobile robot is presented based on obstacle position and size informationFurthermore, rational robot paths in obstacle avoidance are discussed in detail, which leads to the finalimportant result of optimal path for mobile robot to avoid an obstacle.

Keywords： mobile robot     ultrasonic sensor     obstacle avoidance     path planning     optimal path    

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Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0753-3

Abstract: tracking of the four-wheeled mobile robot (FMR), existing methods resolve the tracking control and obstacleavoidance separately.By introducing sub-target points, a new sub-target dynamic tracking regression obstacle avoidance strategyis presented to transfer the obstacle avoidance problem into a dynamic tracking one, thereby reducingavoidance efficiency of the concerned FMR system.

Keywords： four-wheeled mobile robot     obstacle-circumventing adaptive control     adaptive anti-disturbance terminalsliding mode control     sub-target dynamic tracking regression obstacle avoidance    

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A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 317-330 doi: 10.1007/s11465-014-0304-z

Abstract: First we have framed an objective function that satisfied the conditions of obstacle avoidance and target

Keywords： mobile robot     obstacle avoidance     Invasive Weed Optimization     navigation    

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Multi-UAV obstacle avoidance control via multi-objective social learning pigeon-inspired optimization Research

Wan-ying Ruan, Hai-bin Duan,wyruan@buaa.edu.cn,hbduan@buaa.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 5,   Pages 649-808 doi: 10.1631/FITEE.2000066

Abstract: We simulate the flight process of five UAVs in a complex obstacle environment.

Keywords： 无人机；避障；鸽群优化；多目标社会学习鸽群优化    

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Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism

Haibo QU, Yuefa FANG, Sheng GUO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 210-218 doi: 10.1007/s11465-012-0317-4

Abstract: Finally, the method for avoidance of possible parasitic motions is presented by adding redundantly actuated

Keywords： parallel mechanism     3-UPU (universal-prismatic-universal joint)     parasitic motions     limited clearance     redundantly actuated limbs    

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The Validity Experimental Study of the Obstacle Fires Extinguishment by Water Mist

Liu Xuanya,Lu Shouxiang,Huang Yue,Chen Guoqing

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 88-93

Abstract: simulation cabin and pumping pressure water mist system were employed to study the validity of the obstacleThe validity of water mist system and main influencing factors on the extinguishment of the obstacleFDS (4.0.5) was employed to study the interaction of the water mist and obstacle oil fires and the extinguishingThe experimental and simulation results show that the structure and style of the obstacle fires are importantto influence the validity of the obstacle fires extinguishment by water mist.

Keywords： water mist     obstacle fires     validity of fire extinguishment    

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Distributed game strategy for unmanned aerial vehicle formation with external disturbances and obstacles Research Article

Yang YUAN, Yimin DENG, Sida LUO, Haibin DUAN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1020-1031 doi: 10.1631/FITEE.2100559

Abstract: We investigate a for formations with external disturbances and obstacles. The strategy is based on a framework and . First, we propose a to estimate the influence of a disturbance, and prove that the observer converges in fixed time using a Lyapunov function. Second, we design an based on topology reconstruction, by which the UAV can save energy and safely pass obstacles. Third, we establish a distributed MPC framework where each UAV exchanges messages only with its neighbors. Further, the cost function of each UAV is designed, by which the UAV formation problem is transformed into a game problem. Finally, we develop LFPIO and use it to solve the Nash equilibrium. Numerical simulations are conducted, and the efficiency of LFPIO based distributed MPC is verified through comparative simulations.

Keywords： based pigeon inspired optimization (LFPIO)     Non-singular fast terminal sliding mode observer (NFTSMO)     Obstacleavoidance strategy    

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Shadow obstacle model for realistic corner-turning behavior in crowd simulation

Gao-qi HE,Yi JIN,Qi CHEN,Zhen LIU,Wen-hui YUE,Xing-jian LU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3,   Pages 200-211 doi: 10.1631/FITEE.1500253

Abstract: This paper describes a novel model known as the shadow obstacle model to generate a realistic corner-turning

Keywords： Corner-turning behavior     Crowd simulation     Safety awareness     Rule-based model    

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Using improved particle swarm optimization totune PID controllers in cooperative collision avoidance Article

Xing-chen WU, Gui-he QIN, Ming-hui SUN, He YU, Qian-yi XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1385-1395 doi: 10.1631/FITEE.1601427

Abstract: The introduction of proportional-integral-derivative (PID) controllersinto cooperative collision avoidanceimproved particle swarm optimization (PSO) algorithm, and to bettermanipulate cooperative collision avoidance

Keywords： Cooperative collision avoidance system (CCAS)     Improved particle swarm optimization (PSO)     PID controller    

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A novel motion coordination method for variable-sized multi-mobile robots Research Article

Zichao XING, Xingkai WANG, Shuo WANG, Weimin WU, Ruifen HU,zcxing@zju.edu.cn,wmwu@iipc.zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4,   Pages 521-535 doi: 10.1631/FITEE.2200160

Abstract: s (MMRSs) are widely used for transportation in industrial scenes such as manufacturing and warehousing. In an MMRS, is important as collisions and deadlocks may lead to losses or system stagnation. However, in some scenarios, robot sizes are different when loaded and unloaded, which means that the robots are variable-sized, making more difficult. The methods based on zone control need to first divide the environment into disjoint zones, and then allocate the zones statically or dynamically for . The zone-control-based methods are not accurate enough for variable-sized multi-mobile robots and reduce the efficiency of the system. This paper describes a method based on , which can dynamically avoid collisions and deadlocks according to the roadmap structure and the real-time paths of robots. Dynamic features make this method directly applicable to various scenarios, instead of dividing a roadmap into disjoint zones. The proposed method has been applied to many industrial projects, and this study is based on some manufacturing projects for experiments. Theoretical analysis and experimental results show that the proposed algorithm is effective and efficient.

Keywords： Multi-mobile robot system     Collision avoidance     Deadlock avoidance     Glued nodes     Motion coordination    

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A survey on multi-sensor fusion based obstacle detection for intelligent ground vehicles in off-road Review

Jin-wen Hu, Bo-yin Zheng, Ce Wang, Chun-hui Zhao, Xiao-lei Hou, Quan Pan, Zhao Xu,hujinwen@nwpu.edu.cn,zhengboyin@mail.nwpu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 5,   Pages 649-808 doi: 10.1631/FITEE.1900518

Abstract: With the development of sensor fusion technologies, there has been a lot of research on intelligent ground vehicles, where is one of the key aspects of vehicle driving. is a complicated task, which involves the diversity of obstacles, sensor characteristics, and environmental conditions. While the on-road driver assistance system or autonomous driving system has been well researched, the methods developed for the structured road of city scenes may fail in an because of its uncertainty and diversity. A single type of sensor finds it hard to satisfy the needs of because of the sensing limitations in range, signal features, and working conditions of detection, and this motivates researchers and engineers to develop and system integration methodology. This survey aims at summarizing the main considerations for the onboard multi-sensor configuration of intelligent ground vehicles in the s and providing users with a guideline for selecting sensors based on their performance requirements and application environments. State-of-the-art methods and system prototypes are reviewed and associated to the corresponding heterogeneous sensor configurations. Finally, emerging technologies and challenges are discussed for future study.

Keywords： Multi-sensor fusion     Obstacle detection     Off-road environment     Intelligent vehicle     Unmanned ground vehicle    

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Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line segment

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 11-11 doi: 10.1007/s11465-021-0667-x

Abstract: frequency of pipeline as the optimization objective and introducing process constraints and vibration avoidance

Keywords： length adjustment     spatial pipeline     aero-engine     vibration avoidance optimization     genetic algorithm    

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Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 120-134 doi: 10.1007/s11465-012-0321-8

Abstract:

In this paper the effect of kinematic redundancy in order to reduce the singularity loci of the direct kinematics and to increase the operational, i.e., singularity-free, workspace is demonstrated. The proposed approach consists of additional prismatic actuators allowing one or more base joints to move linearly. As a result, a selective reconfiguration can be performed in order to avoid singular configurations. Exemplarily, kinematically redundant schemes of four structures, the 3RRR, the 3RPR, the 6UPS, and the 6RUS, are considered. The relationship between the redundancy and the operational workspace is studied and several analysis examples demonstrate the effectiveness of the proposed concept. Furthermore, the additional benefit of an increasing number of redundant actuators is discussed.

Keywords： parallel robots     kinematic redundancy     singularity avoidance     operational workspace    

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Application of PCI Bus in the Numerical-Control-System

Zhang Guoshun,Zhang Jian,Zhang Taishi,Yan Kun,Huang Fuqing

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 25-28

Abstract:

PCI bus has become the primary bus standard of PC. It is widely used in numerical-control-system ,such as 3D laser formation, high speed laser marking, laser cut and so on. This article analyzes several technique problems and puts forward solving strategy. A graphic processing card for high speed laser marking machine has been designed, which can raise the efficiency by 25%～30%.

Keywords： PCI bus     linear burst transmission     reflected wave conversion     interfernce avoidance    

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Title Author Date Type Operation

Research on Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Journal Article

The Shortest Path for Mobile Robots in Obstacle Avoidance

Guo Ge

Journal Article

Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Journal Article

A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Journal Article

Multi-UAV obstacle avoidance control via multi-objective social learning pigeon-inspired optimization

Wan-ying Ruan, Hai-bin Duan,wyruan@buaa.edu.cn,hbduan@buaa.edu.cn

Journal Article

Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism

Haibo QU, Yuefa FANG, Sheng GUO

Journal Article

The Validity Experimental Study of the Obstacle Fires Extinguishment by Water Mist

Liu Xuanya,Lu Shouxiang,Huang Yue,Chen Guoqing

Journal Article

Distributed game strategy for unmanned aerial vehicle formation with external disturbances and obstacles

Yang YUAN, Yimin DENG, Sida LUO, Haibin DUAN

Journal Article

Shadow obstacle model for realistic corner-turning behavior in crowd simulation

Gao-qi HE,Yi JIN,Qi CHEN,Zhen LIU,Wen-hui YUE,Xing-jian LU

Journal Article

Using improved particle swarm optimization totune PID controllers in cooperative collision avoidance

Xing-chen WU, Gui-he QIN, Ming-hui SUN, He YU, Qian-yi XU

Journal Article

A novel motion coordination method for variable-sized multi-mobile robots

Zichao XING, Xingkai WANG, Shuo WANG, Weimin WU, Ruifen HU,zcxing@zju.edu.cn,wmwu@iipc.zju.edu.cn

Journal Article

A survey on multi-sensor fusion based obstacle detection for intelligent ground vehicles in off-road

Jin-wen Hu, Bo-yin Zheng, Ce Wang, Chun-hui Zhao, Xiao-lei Hou, Quan Pan, Zhao Xu,hujinwen@nwpu.edu.cn,zhengboyin@mail.nwpu.edu.cn

Journal Article

Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line segment

Journal Article

Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Journal Article

Application of PCI Bus in the Numerical-Control-System

Zhang Guoshun,Zhang Jian,Zhang Taishi,Yan Kun,Huang Fuqing

Journal Article