Development of navigation software system for obstacle avoidance in a dynamic environment

Carmack, Nathan; Mikhail, Maged

doi:10.1109/secon.2016.7506713

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…In this case, higher layers have been self-utilized by the inclusion of small layer functions. Proceeding with this technique, Carmak and Mikhail 20 recently developed a navigation system for mobile robot in dynamic environment where objects in the proximity of robot are tracked by using laser scanner of simulated type. In the research domain of mobility, Nishiyama and Iba 21 proposed a conversion matrix using genetic algorithms (GA) for mapping of joint parameters of different robots with each other.…”

Section: Introductionmentioning

confidence: 99%

Investigating the potential of redundant manipulators in narrow channels

Singla

Narayan

Arora

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, an attempt has been made to investigate the potential of redundant manipulators, while tracking trajectories in narrow channels. The behavior of redundant manipulators is important in many challenging applications like under-water welding in narrow tanks, checking the blockage in sewerage pipes, performing a laparoscopy operation etc. To demonstrate this snake-like behavior, redundancy resolution scheme is utilized using two different approaches. The first approach is based on the concept of task priority, where a given task is split and prioritize into several subtasks like singularity avoidance, obstacle avoidance, torque minimization, and position preference over orientation etc. The second approach is based on Adaptive Neuro Fuzzy Inference System (ANFIS), where the training is provided through given datasets and the results are back-propagated using augmentation of neural networks with fuzzy logics. Three case studies are considered in this work to demonstrate the redundancy resolution of serial manipulators. The first case study of 3-link manipulator is attempted with both the approaches, where the objective is to track the desired trajectory while avoiding multiple obstacles. The second case study of 7-link manipulator, tracking trajectory in a narrow channel, is investigated using the concept of task priority. The realistic application of minimum-invasive surgery (MIS) based trajectory tracking is considered as the third case study, which is attempted using ANFIS approach. The 5-link spatial redundant manipulator, also known as a patient-side manipulator being developed at CSIR-CSIO, Chandigarh is used to track the desired surgical cuts. Through the three case studies, it is well demonstrated that both the approaches are giving satisfactory results.

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Section: Introductionmentioning

confidence: 99%