Posts Tagged dismounted soldiers; displays; information consumer; “passive” operator

Human factors engineering consideration in the design of display devices for dismounted soldiers

In January 2015, the Gordon Center for Systems Engineering at the Technion conducted its Annual meeting. This year the meeting was dedicated to Human Factors and how it is relevant to system design.

During this day, lectures focused on the importance of integrating human factors into systems design. Two communities: human factors practitioners and researchers and system engineers from leading Industries in Israel had the opportunity to interact and learn. Clearly there is a need for better integration of the human factors engineering discipline in product and project development Read the rest of this entry »

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Is more information better? How dismounted soldiers utilize video feed from unmanned vehicles – attention allocation and information extraction considerations

Ronny Ophir-Arbelle, Tal Oron-Gilad, Avinoam Borowsky and Yisrael Parmet

Background: Operational tactics in urban areas are often aided by information from unmanned aerial vehicles (UAVs). A major challenge for dismounted soldiers, particularity in urban environments is to understand the conflict area in general and particularly from the UAV feed. The UAV feed is usually used to enhance soldiers’ situation awareness abilities but less for identifying specific elements. Objective: A possible way to further enhance soldiers’ abilities is to provide them with multiple sources of information (e.g., aerial and ground views). This study examined the benefits of presenting video feed from unmanned aerial and ground vehicles (UAV/UGV) in a combined interface, relative to presenting aerial feed alone. Method: Thirty former infantry soldiers with no experience in operating unmanned vehicles participated. Objective performance, subjective evaluations and eye tracking patterns were examined, in two separate scenarios. Results: In Scenario one performance scores in both Identification and Orientation tasks were superior in the combined configuration. In Scenario two performance scores in the Identification tasks were improved and the addition of the UGV feed did not harm performance in the Orientation task. Eye movement scanning patterns reinforced that both UAV and UGV feeds were used for the mission. Conclusion: The combined configuration generated consistent benefits with regard to the Identification tasks, perceived mental demand, and reduction of false reports without having any apparent cost on participants. Application: Ground views may provide additional support to dismounted soldiers.

The full article appears in the Journal of Cognitive Ergonomics and Decision Making.

Here is a sample video feed of the eye scanning pattern of a single participant derived from Scenario 2. Note how the participant utilizes the C2 map (to the right) and both video sources.

Utilizing video feed from unmanned vehicles

Passive Operators\Information Consumers differ from operators and need special attention and interfaces to support their operational missions.

Here are some of the differences to consider:

  • Operational environment does not necessarily resemble the one of the unmanned system’s operator
  • Experience and expertise is different
  • Dismounted soldiers are limited in the weight and size of devices they can carry
  • Missions are diverse and often stressful
  • Information is provided from multiple sources (unmanned systems, commanders, others)
  • Multiple video feeds from various sources – the passive operator may not be aware or familiar with each system and its characteristics – operators are supposed to know their systems’ limitations well
  • Communication chains with active operators are indirect or blocked

We have been continuously working on developing interfaces for “passive” operators. See also Scalable interfaces for dismounted soldiers–displaying multiple video feed sources simultaneously

Here are two images from the current study: one of the interface and one of the scanning patterns of a sample participant. From the scanning pattern it is notable that the stronger routes are between the UAV and the map and the UAV and the UGV feed.


Display layout for the "is more information better" (2012) study

Display layout for the “is more information better” (2012) study

Sample eye scanning patterns for the "Is more information" study

Sample eye scanning patterns for the “Is more information” (2012) study