Results 1 to 10 of about 4,045,344 (304)

Development of Path Generation and Algorithm for Autonomous Combine Harvester Using Dual GPS Antenna [PDF]

Sensors, 2023
Research on autonomous driving technology is actively underway to solve the facing problems in the agricultural field. Combine harvesters used in East Asian countries, including Korea, are tracked-type vehicles. The steering control system of the tracked
Kyuho Lee, Hyohyuk Choi, Junghun Kim
doaj   +2 more sources

Perception and Localization Error Propagation and Robust Path-Tracking Control for Agricultural Machinery in Hilly Orchards: A Review [PDF]

Sensors
Hilly orchards are characterized by undulating terrain, canopy occlusion, irregular tree-row structures, and marked variations in ground adhesion conditions, which challenge the autonomous navigation of agricultural machinery by degrading perception and ...
Zhenlei Zhang, Yunfei Wang, Hanquan Lei, Xiang Dong, Weidong Jia   +4 more
doaj   +2 more sources

Kinematic Analysis of a Tendon-Driven Hybrid Rigid–Flexible Four-Bar; Application to Optimum Dimensional Synthesis

Mathematics, 2023
In design matters, mechanisms with deformable elements are a step behind those with rigid bars, particularly if dimensional synthesis is considered a fundamental part of mechanism design.
Alfonso Hernández, Aitor Muñoyerro, Mónica Urízar, Oscar Altuzarra   +3 more
doaj   +1 more source

Multiresolution Topology Optimization of Large-Deformation Path-Generation Compliant Mechanisms with Stress Constraints

Applied Sciences, 2021
Topology optimization is a powerful numerical tool in the synthesis of lightweight structures and compliant mechanisms. Compliant mechanisms present challenges for topology optimization, as they typically exhibit large displacements and rotations.
Joseph Reinisch, Erich Wehrle, Johannes Achleitner   +2 more
doaj   +1 more source

An Adaptive Motion Planning Technique for On-Road Autonomous Driving

IEEE Access, 2021
This paper presents a hierarchical motion planning approach based on discrete optimization method. Well-coupled longitudinal and lateral planning strategies with adaptability features are applied for better performance of on-road autonomous driving with ...
Xianjian Jin, Zeyuan Yan, Guodong Yin, Shaohua Li, Chongfeng Wei   +4 more
doaj   +1 more source

A Novel Mesh Following Technique Based on a Non-Approximant Surface Reconstruction for Industrial Robotic Path Generation

IEEE Access, 2019
Nowadays, industrial robot applications are required to customize the manufacturing of diverse products to reduce both downtime and standoff variability. The two methods for robot programming are regularly implemented to carry out that goal.
Miguel Angel Funes-Lora, Edgar Alfredo Portilla-Flores, Eduardo Vega-Alvarado, Raul Rivera Blas, Emmanuel Alejandro Merchan Cruz, Manuel Faraon Carbajal Romero   +5 more
doaj   +1 more source

Hybrid Optimization Based Mathematical Procedure for Dimensional Synthesis of Slider-Crank Linkage

Mathematics, 2021
In this paper, an optimization procedure for path generation synthesis of the slider-crank mechanism will be presented. The proposed approach is based on a hybrid strategy, mixing local and global optimization techniques. Regarding the local optimization
Alfonso Hernández, Aitor Muñoyerro, Mónica Urízar, Enrique Amezua   +3 more
doaj   +1 more source

Mobile Robot Path Planning Based on Kinematically Constrained A-Star Algorithm and DWA Fusion Algorithm

Mathematics, 2023
Path-planning research has been the key to mobile-robot-navigation technology. However, traditional path-planning algorithms have some shortcomings. To solve these problems, this paper proposes a fusion algorithm that combines the kinematical constrained
Yanjie Liu, Chao Wang, Heng Wu, Yanlong Wei   +3 more
doaj   +1 more source

Optimum shape synthesis of path generating mechanisms using wavelet descriptors

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
The discrete wavelet transform is a well-known mathematical tool for shape recognition. In this study, a wavelet descriptor with two shape signatures, i.e., centroid distance and triangular centroid area, is developed for shape synthesis for path ...
Wen-Yi LIN
doaj   +1 more source

Planar Four-Bar Motion and Path Generation with Order and Branching Conditions

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2011
This work presents an optimization model for planar four-bar motion and path generation. This model includes the four-bar linkage kinematic model by Suh and Radcliffe(13) as an objective function.
Kevin RUSSELL, John SHEN
doaj   +1 more source