Investigating multiple human performance measures in teleoperation task: A translation task in a tele‐sandblasting maintenance system

Abstract

In sandblasting tasks for complex steel structure maintenance, teleoperation is required to keep humans away from occupational risk and hazard. On the other hand, teleoperation typically degrades system‐human performances, resulting in poor product quality and must be designed such that the performances remain as high as possible. However, designing the teleoperation system regarding to a single performance measure may lead to an improper design. In this article, we propose two novel loss‐function‐based human‐performance measures to incorporate with a widely used performance measure, movement time, to thoroughly represent performance: unfinished surface and damaged surface. We aim to investigate the effects of two main design parameters, viewing distance and path width. The results show that only path width is significant for overall performances. Furthermore, the effect of gender is significant such that men outperform women in cleaning the surface. Finally, the optimal setting conditions are suggested to achieve their optimal performances.

A Variation Reduction in the Tele-Abrasive System: A Study of Human Movement

“…A tele-abrasive system is a shared-control system where an operator and an automated machine operate the system together [14,15]. It is a teleoperation system that mainly consists of two main components, a human operator and a tele-abrasive machine, as shown in Figure 1.…”

“…However, in teleoperation tasks, although human arm movement is a main part of a shared-control system, human movement error has received very little research attention. In this general area, [14] proposed an adaptive network-based fuzzy inference system (ANFIS) model to control human arm movement velocity in a gas tungsten arc welding task. Furthermore, [20] considered the problem of the physical interface between a human and a computer, which requires an approach to help the human operator perform a hand movement task in a more comfortable and, hence, more reliable way.…”

“…where ŷ−t 1 is the predicted current state. Then, the confidence of the prediction, P −t , is estimated by (14):…”

Variation minimization in tele-sandblasting system: the effect of human-arm movement error

“…The preferable outcomes of the task is to ensure that the surface is completely clean as fast as possible. To do so, the width of the blasting path is set to be equivalent to or slightly smaller than the blasting spot size to achieve optimal operating time and cost [6], shown in Fig. 2.…”