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II Joseph P. Hale

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Publications by II Joseph P. Hale (bibliography)

1992

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Hale, II Joseph P. (1992): Anthropomorphic Teleoperation: Controlling Remote Manipulators with the DataGlove. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 126-130.

“A study was conducted to assess the capabilities and limitations of the DataGlove, a lightweight glove input device that can output signals in real time based on hand shape, orientation, and movement. The DataGlove was used as an input device to control the Proto-Flight Manipulator Arm (PFMA), a large telerobotic arm with an 8-foot reach. Twelve volunteers (six males and six females) participated in a 2x3(x2) full-factorial experiment in a simple retraction, slewing, and insertion task. Two within-subjects variables, time delay (0,1, and 2 seconds) and PFMA wrist flexibility (rigid/flexible) were manipulated. Gender served as a blocking variable. Retraction, insertion, and slew times, as well as total task time were collected as the dependent variables. An analysis of variance found a main effect of time delay for slewing and total task times. A post hoc Newman-Keuls pairwise comparison of the means was performed for the significant effects. Slew times with no time delay were significantly faster than slew times with either 1- or 2-second time delays. Total task time with no time delay was significantly faster than total task time with a 2-second time delay. PFMA wrist flexibility had no significant main effect on the ability of the subject to accurately and effectively operate the PFMA with the DataGlove. It was concluded that the DataGlove is a legitimate teleoperations input device that provides a natural, intuitive user interface and should be considered in future trades in teleoperation systems' designs.”

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Hale, II Joseph P. (1992): Assessment of a Head-Mounted Miniature Monitor. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 346-350.

“Two experiments were conducted to assess the capabilities and limitations of the Private Eye, a miniature, head-mounted monitor. The first experiment compared the Private Eye with a cathode ray tube (CRT) and hard copy in both a constrained and unconstrained work envelope. The task was a simulated maintenance and assembly task that required frequent reference to the displayed information. A main effect of presentation media indicated faster placement times using the CRT as compared with hard copy. There were no significant differences between the Private Eye and either the CRT or hard copy for identification, placement, or total task times. The goal of the second experiment was to determine the effects of various local visual parameters on the ability of the user to accurately perceive the information on the Private Eye. The task was an interactive video game. No significant performance differences were found under either bright or dark ambient illumination environments nor with either visually simple or complex task backgrounds. Glare reflected off the bezel surrounding the monitor did degrade performance. It was concluded that this head-mounted, miniature monitor seems well suited for in situ operations that require ready reference to information and could serve a particularly useful role in microgravity environments.”

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