Induced virtual environment for control of a manipulator designed for working with radioactive materials

2021 ◽  
Vol 9 (1) ◽  
pp. 32-41
Author(s):  
Alexey Sergeev ◽  
Victor Titov ◽  
Igor Shardyko
Keyword(s):  
Computer Vision ◽  
Virtual Reality ◽  
Virtual Environment ◽  
Human Machine Interface ◽  
Robotic Arm ◽  
Radioactive Materials ◽  
End Effector ◽  
Machine Interface

This article discusses the control issues of a robotic arm for a hot cell based on the induced virtual reality methodology. A human-machine interface based on the virtual reality is presented, comprising a set of interactive features, designed to construct trajectories, along which the end effector of the arm should move. The prospects of computer vision are further considered as means that update the virtual environment state. An experiment to compare two approaches designed to control the robotic arm in virtual environment was carried out.

Application of Virtual Reality Technology in Civil Engineering

2013 ◽  
Vol 427-429 ◽  
pp. 2855-2858
Author(s):  
Yu Ping Qin
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Sensory Stimulation ◽  
Computer Hardware ◽  
High Tech ◽  
Virtual Reality Technology ◽  
Virtual Construction ◽  
Core Technology ◽  
Industrial Architecture ◽  
Machine Interface

The virtual construction is achieved in the virtual environment, and the virtual reality technology is the core technology in the virtual construction system. The virtual reality technology is a high-tech information technology which integrates the artificial intelligence, the computer graphics, the man-machine interface technology, multi-media industrial architecture technology, the network technology, the electronics technology and the mechanical technology. The technology aims to utilize computer hardware, software and various sensors to create a virtual environment integrating vision, hearing, touch and smelling, which makes users immersive in the environment. The operators are immersive in the environment and interact with it, obtain sensory stimulation through various media, and gain clear and intuitional understanding of the problems to be solved.

Determining the Important Subjective Criteria in the Perception of Human-Like Robot Movements Using Virtual Reality

2016 ◽  
Vol 13 (02) ◽  
pp. 1550033 ◽  
Author(s):  
Olivier Hugues ◽  
Vincent Weistroffer ◽  
Alexis Paljic ◽  
Philippe Fuchs ◽  
Ahmad Abdul Karim ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Velocity Profile ◽  
Virtual Environment ◽  
User Study ◽  
Use Case ◽  
Robot Arm ◽  
End Effector ◽  
Human Likeness ◽  
Industrial Use ◽  
Different Levels

This paper deals with the design and the evaluation of human-like robot movements. Three criteria were proposed and evaluated regarding their impact on the human-likeness of the robot movements: The inertia of the base, the inertia of the end-effector and the velocity profile. A specific tool was designed to generate different levels of anthropomorphism according to these three parameters. An industrial use case was designed to compare several robot movements. This use case was implemented with a virtual robot arm in a virtual environment, using virtual reality. A user study was conducted to determine what were the important criteria in the perception of human-like robot movements and what were their correlations with other notions such as safety and preference. The results showed that inertia on the end-effector was of most importance for a movement to be perceived as human-like and nonaggressive, and that those characteristics helped the users feel safer, less stressed and more willing to work with the robot.

scholarly journals ROBOTIC ARM HUMAN-MACHINE INTERFACE FOR LASER SHOCK PEENING APPLICATIONS

2019 ◽  
Vol 2019 (05) ◽  
pp. 3643-3646
Author(s):  
Marek Bohm ◽  
◽  
Jan Kaufman ◽  
Jan Brajer ◽  
Danijela Rostohar
Keyword(s):  
Human Machine Interface ◽  
Laser Shock Peening ◽  
Robotic Arm ◽  
Laser Shock ◽  
Machine Interface ◽  
Shock Peening

scholarly journals Design of a 3-DOF Parallel Hand-Controller

2017 ◽  
Vol 2017 ◽  
pp. 1-12
Author(s):  
Chengcheng Zhu ◽  
Aiguo Song
Keyword(s):  
Positive Solution ◽  
Virtual Environment ◽  
Human Machine Interface ◽  
Inverse Solution ◽  
Haptic Device ◽  
Haptic Information ◽  
Position Information ◽  
Linear Movement ◽  
Machine Interface ◽  
Real Robot

Hand-controllers, as human-machine-interface (HMI) devices, can transfer the position information of the operator’s hands into the virtual environment to control the target objects or a real robot directly. At the same time, the haptic information from the virtual environment or the sensors on the real robot can be displayed to the operator. It helps human perceive haptic information more truly with feedback force. A parallel hand-controller is designed in this paper. It is simplified from the traditional delta haptic device. The swing arms in conventional delta devices are replaced with the slider rail modules. The base consists of two hexagons and several links. For the use of the linear sliding modules instead of swing arms, the arc movement is replaced by linear movement. So that, the calculating amount of the position positive solution and the force inverse solution is reduced for the simplification of the motion. The kinematics, static mechanics, and dynamic mechanics are analyzed in this paper. What is more, two demonstration applications are developed to verify the performance of the designed hand-controller.

The Effect of Dynamic Speed Information and Timing of Displaying EHMI on Automated Vehicle and Pedestrian Interactions

2021 ◽  
Author(s):  
Jinjuan She ◽  
Marufa Islam ◽  
Feng Zhou
Keyword(s):  
Virtual Reality ◽  
Field Studies ◽  
Human Machine Interface ◽  
Perceived Safety ◽  
Physical Behavior ◽  
Automated Vehicle ◽  
Online Study ◽  
Short Period ◽  
Machine Interface ◽  
The Impact

Abstract Pedestrian-AV (automated vehicle) interaction attracts a significant amount of attention in recent years. However, there are controversial opinions about whether an external human-machine interface (eHMI) that communicates AV’s intent is needed. The authors propose that vehicle built-in cues (e.g., dynamic speed information) and the timing of displaying eHMI when communicating an AV’s yielding intent are both important. An online study was conducted to understand the impact on a 2-way street with a marked but not signalized crosswalk. As predicted, pedestrians were more likely to cross, with higher trust in AV and perceived safety, when the eHMI was displayed earlier. Information of the AV’s decreasing speed did not have a significant effect on crossing decisions, however, it increased trust and perceived safety. In addition, eHMI did have a positive add-on effect on pedestrian’s trust in AV, especially when it was displayed earlier, in the scenarios that dynamic speed of an AV was visible. Moreover, both the timing of eHMI and dynamic speed information played a role in enhancing a pedestrian’s judgment consistency in the short period of the interaction with AV, i.e., viewing the approaching AV from 20 meters away until it stopped near the pedestrian. The study indicated that both information about the vehicle’s physical behavior (i.e., speed) and the eHMI are beneficial in pedestrian-AV communication. More in-depth virtual reality or field studies are needed to further validate the findings.

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