Three-dimensional(3D)lidar has been widely used in various *** MEMS scanning system is one of its most important components,while the limitation of scanning angle is the main obstacle to improve the demerit for its ap...
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Three-dimensional(3D)lidar has been widely used in various *** MEMS scanning system is one of its most important components,while the limitation of scanning angle is the main obstacle to improve the demerit for its application in various *** this paper,a folded large field of view scanning optical system is *** structure and parameters of the system are determined by theoretical derivation of ray *** optical design software Zemax is used to design the *** optimization,the final structure performs well in collimation and beam *** results show that the scan angle can be expanded from±5°to±26.5°,and finally the parallel light scanning is *** spot diagram at a distance of 100 mm from the exit surface shows that the maximum radius of the spot is 0.506 mm with a uniformly distributed *** maximum radius of the spot at 100 m is 19 cm,and the diffusion angle is less than 2 *** energy concentration in the spot range is greater than 90%with a high system energy concentration,and the parallelism is *** design overcomes the shortcoming of the small mechanical scanning angle of the MEMS lidar,and has good performance in collimation and beam *** provides a design method for large-scale application of MEMS lidar.
作者:
Goraksha, RahulBongale, ArunkumarSayyad, SameerKumar, Satish
Symbiosis Institute of Technology Department of Robotics and Automation Pune412115 India
Symbiosis Centre for Applied Artificial Intelligence Department of Robotics and Automation Pune412115 India
There is a rising scarcity of healthcare professionals to meet the demand of taking care of aged people. Social robots are becoming more and more popular because of the benefits they provide;during the pandemic, in pa...
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To improve transportation capacity,dual overhead crane systems(DOCSs)are playing an increasingly important role in the transportation of large/heavy cargos and ***,when trying to deal with the control problem,current ...
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To improve transportation capacity,dual overhead crane systems(DOCSs)are playing an increasingly important role in the transportation of large/heavy cargos and ***,when trying to deal with the control problem,current methods fail to fully consider such factors as external disturbances,input dead zones,parameter uncertainties,and other unmodeled dynamics that DOCSs usually suffer *** a result,dramatic degradation is caused in the control performance,which badly hinders the practical applications of *** by this fact,this paper designs a neural network-based adaptive sliding mode control(SMC)method for DOCS to solve the aforementioned issues,which achieves satisfactory control performance for both actuated and underactuated state variables,even in the presence of matched and mismatched *** asymptotic stability of the desired equilibrium point is proved with rigorous Lyapunov-based ***,extensive hardware experimental results are collected to verify the efficiency and robustness of the proposed method.
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Tactile perception is crucial for detecting contact and identifying the attributes associated with it. In this research, we demonstrate that the mechanical properties of objects may be inferred by employing data-drive...
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Dear editor,Object detection plays an important role in computer vision,and has gradually become the technical foundation of many applications. However, the inference procedure of advanced detection models requires ma...
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Dear editor,Object detection plays an important role in computer vision,and has gradually become the technical foundation of many applications. However, the inference procedure of advanced detection models requires massive computational resources,which makes it difficult to apply to resource-constrained mobile or edge devices.
Abusive activity frequently occurs in various places, including nursing homes for the elderly. However, it is difficult to detect because it has various forms and is not easy to define. Therefore, in this study, we tr...
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