Quantitative Analysis of Haptic Performance using Human Machine Interactin and Multi-tasking Performance Model

Abstract

<p>Previous multi-tasking research characterized a human-machine-interaction model for a human operator performing five simultaneous tasks using a common joystick and multi-attribute task battery (MATB) programming. To further develop this research, the tasks: light, dial, communication, frequency and channel-were performed using a vibrational force feedback haptic stick. The human-machine-interaction model was redesigned to reflect a randomized study to test operator performance of tasks using both haptic feedback and no haptic feedback. Subjects performed in two 20minute trials during one of which the feedback was activated and in the other, the feedback was inactivated. Three levels of total machineinitiated baud rate (&#946;IN) were generated and three HO baud rates (&#946;0) were recorded during testing. The total baud ratio (B-) is defined as the ratio of BO to BIN. The research refined the previously developed human-machine-interaction model and studied operational interaction with the addition of haptic feedback. It appears that, as the input baud rate increases, the output baud rate decreases. Additionally, results indicate an improvement in the effectiveness of human performance in multiple task information processing using force feedback.</p><p>This presentation occurred at the Wright State University Campus-Wide Celebration of Research, Scholarship and Creative Activities on April 8, 2011</p>