Effects of preview time on human control behavior in rate tracking tasks

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Abstract

In many practical control tasks, human controllers (HC) can preview the trajectory they must follow in the near future. This paper investigates the effects of the length of previewed target trajectory, or preview time, on HC behavior in rate tracking tasks. To do so, a human-in-the-loop experiment was performed, consisting of a combined target-tracking and disturbance-rejection task. Between conditions the preview time was varied between 0, 0.1, 0.25 0.5 0.75 or 1 s, capturing the complete human control-behavioral adaptation from zero- to full-preview tasks, where the performance remains constant. The measurements were analyzed by fitting a HC model for preview tracking tasks to the data. Results show that optimal performance is attained when the displayed preview time is higher than 0.5 s. When the preview time increases, subjects exhibit more phase lead in their target response dynamics. They respond to a single point on the target ahead when the preview time is below 0.5 s and generally to two different points when more preview is displayed. As the model tightly fits to the measurement data, its validity is extended to different preview times
Original languageEnglish
Title of host publicationIFAC-PapersOnLine
Subtitle of host publication13th IFAC Symposium on Analysis, Design, and Evaluation of Human-Machine Systems HMS 2016
EditorsT Sawaragi
Place of PublicationLaxenburg, Austria
PublisherElsevier
Pages108-113
Volume49 - 19
DOIs
Publication statusPublished - 2016
Event13th IFAC Symposium on Analysis, Design, and Evaluation of Human-Machine Systems - Kyoto, Japan
Duration: 30 Aug 20162 Sep 2016

Conference

Conference13th IFAC Symposium on Analysis, Design, and Evaluation of Human-Machine Systems
Abbreviated titleHMS 2016
CountryJapan
CityKyoto
Period30/08/162/09/16

Keywords

  • Target Tracking
  • manual control
  • Preview
  • Parameter Estimation
  • Human Factors

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