Results 1 to 10 of about 618,585 (147)

Path Tracking of a 4WIS–4WID Agricultural Machinery Based on Variable Look-Ahead Distance

Applied Sciences, 2022
Aiming to solve the problem of the low path-tracking accuracy of mobile robots in agricultural environments, the authors of this paper propose a path-tracking method for agricultural machinery based on variable look-ahead distance.
Lijun Xu, Yankun Yang, Qinhan Chen, Fengcheng Fu, Bihang Yang, Lijian Yao   +5 more
doaj   +2 more sources

Early attraction in temporally controlled sight reading of music [PDF]

Journal of Eye Movement Research, 2018
A music reader has to “look ahead” from the notes currently being played—this has usually been called the Eye-Hand Span. Given the restrictions on processing time due to tempo and meter, the Early Attraction Hypothesis suggests that sight readers are ...
Erkki Huovinen, Anna-Kaisa Ylitalo, Marjaana Puurtinen   +2 more
doaj   +3 more sources

Altered walking gaze behavior after stroke: more than meets the eye [PDF]

Journal of NeuroEngineering and Rehabilitation
Background A common clinical impression is that individuals with stroke tend to gaze downward while walking—focusing on the walking surface a short distance ahead for extended periods.
Yogev Koren, Noy Goldhamer, Shilo Kramer, Lior Shmuelof   +3 more
doaj   +2 more sources

Path tracking control method for tracked agricultural vehicles based on slip-aware look-ahead point offset [PDF]

Frontiers in Plant Science
IntroductionTracked agricultural vehicles operating in complex farmland environments are prone to track slip, which degrades path-tracking accuracy and may lead to unstable motion.
Huanyu Liu, Zhihang Han, Jiaqin Yin, Junwei Bao, Jian Mu, Hewen Tan, Xiangnan Liu   +6 more
doaj   +2 more sources

Self-Adjusting Look-Ahead Distance of Precision Path Tracking for High-Clearance Sprayers in Field Navigation

Agronomy
As a core component of agricultural machinery autonomous navigation, path tracking control holds significant research value. The pure pursuit algorithm has become a prevalent method for agricultural vehicle navigation due to its effectiveness at low ...
Xu Wang, Bo Zhang, Xintong Du, Huailin Chen, Tianwen Zhu, Chundu Wu   +5 more
doaj   +2 more sources

Geometric line-of-sight guidance law with exponential switching sliding mode control for marine vehicles’ path following [PDF]

Frontiers in Robotics and AI
Marine vehicle guidance and control technology serves as the core support for advancing marine development and enabling scientific exploration. Its accuracy, autonomy, and environmental adaptability directly determine a vehicle’s mission effectiveness in
Chengren Yuan, Chengren Yuan, Changgeng Shuai, Changgeng Shuai, Zhanshuo Zhang, Zhanshuo Zhang, Buyun Li, Buyun Li, Yuqiang Cheng, Yuqiang Cheng, Jianguo Ma, Jianguo Ma   +11 more
doaj   +2 more sources

Dynamic look-ahead feedrate scheduling method based on sliding mode velocity control [PDF]

Scientific Reports
In the feedrate scheduling of complex curve direct interpolation, dynamic constraints such as axis acceleration and jerk are related to the actual state of the tool.
Liuquan Wang, Qiang Liu, Pengpeng Sun, Shisheng Lv, Ruijie Yang, Zhiqi Yang   +5 more
doaj   +2 more sources

An Adaptive Path Tracking Controller with Dynamic Look-Ahead Distance Optimization for Crawler Orchard Sprayers

Actuators
Based on the characteristics of small agricultural machinery in terms of flexibility and high efficiency when operating in small plots of hilly and mountainous areas, as well as the demand for improving the automation and intelligence levels of ...
Xu Wang, Bo Zhang, Xintong Du, Xinkang Hu, Chundu Wu, Jianrong Cai   +5 more
doaj   +2 more sources

Frequency Shaping-Based Control Framework for Reducing Motion Sickness in Autonomous Vehicles [PDF]

Sensors
This study introduces a motion-sickness-reducing control strategy aimed at enhancing ride comfort in Electric Autonomous Vehicles (EAVs). For lateral control, the forward look-ahead distance was adaptively adjusted based on the Motion Sickness Dose Value
Soomin Lee, Chunhwan Lee, Chulwoo Moon
doaj   +2 more sources

Enhanced Pure Pursuit Path Tracking Algorithm for Mobile Robots Optimized by NSGA-II with High-Precision GNSS Navigation [PDF]

Sensors
With the rapid development of automation and intelligent technology, mobile robots have shown wide application potential in many fields, and accurate navigation systems are the key to robots completing tasks.
Xiongwen Jiang, Taiga Kuroiwa, Yu Cao, Linfeng Sun, Haohao Zhang, Takahiro Kawaguchi, Seiji Hashimoto   +6 more
doaj   +2 more sources