Accession Number : ADA290443

Title :   Improved Operator Awareness of Teleoperated Land Vehicle Attitude.

Descriptive Note : Final rept. Jun 90-Jun 92,

Corporate Author : NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA

Personal Author(s) : Pastore, Tracy H.

PDF Url : ADA290443

Report Date : JUN 1994

Pagination or Media Count : 34

Abstract : The operator of a teleoperated land vehicle must have a sufficient understanding of the attitude of a remote vehicle to successfully operate it in an unstructured outdoor environment. The goal of this effort was to develop a human-machine interface that provides sufficient remote vehicle attitude information while minimally impacting operator workload. Referencing the remote video sensors to the earth's gravitational field was proposed as a means of providing vehicle attitude information to the operator. The hood of the remote vehicle appeared in the video image and served as a two-dimensional artificial horizon, providing the operator with vehicle pitch and roll information in a natural, nonintrusive manner. The effectiveness of gravity-referencing the sensors was experimentally tested and compared with vehicle-referencing the sensors on the same teleoperator system. Experimental results confirmed that gravity-referencing the sensors provided the operator with improved vehicle attitude information. In addition, results showed a significantly higher level of operator confidence in vehicle attitude awareness with the gravity-referencing method. A minimal increase in operator workload was also documented for the method of gravity-referencing.

Descriptors :   *GROUND VEHICLES, *REMOTELY PILOTED VEHICLES, ROLL, ENVIRONMENTS, DETECTORS, INTERFACES, TWO DIMENSIONAL, IMAGES, REMOTE DETECTORS, VEHICLES, MAN MACHINE SYSTEMS, WORKLOAD, OPERATORS(PERSONNEL), EARTH(PLANET), VIDEO SIGNALS, CONFIDENCE LEVEL, AWARENESS, OUTDOOR, TELEOPERATORS, ATTITUDE(INCLINATION), GRAVITATIONAL FIELDS, HORIZONTAL INDICATORS.

Subject Categories : Surface Transportation and Equipment
      Surface Transportation and Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE