Audiovisual display modes for sense-and-avoid system for aerial vehicles

Abstract

The invention provides six different display modes illustrating interaction and relative locations of two or more aerial vehicles (AVs), with at least one of the AVs being controllable by a ground-based or airborne-based controller of an unmanned aerial vehicle (UAV) or a pilot of a standard manned aircraft. Some display modes also indicate a predicted distance of closest approach of two AVs, the possibility of conflict or collision, and a remaining time, measured relative to the present time, before this conflict occurs. An audio and / or visual indicator advises the AV controller if this conflict event is likely to occur and recommends an acceleration or deceleration increment that may avoid such conflict.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of application Ser. No. 13 / 694,940, filed Jan. 22, 2013, which is a continuation-in-part of application Ser. No. 12 / 661,672, filed Mar. 22, 2010, now U.S. Pat. No. 8,370,057, which is a continuation-in-part of application Ser. No. 11 / 888,070, filed Jul. 31, 2007, now U.S. Pat. No. 7,706,979, which is a continuation-in-part of application Ser. No. 11 / 120,263, filed May 3, 2005, now U.S. Pat. No. 7,269,513. Each of the foregoing applications is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]This invention relates to computer screen display modes for two or more aerial vehicles (“AVs”), including an unmanned aerial vehicle (“UAVs”), using a ground-based or airborne-based sense-and-avoid display system for monitoring flight safety and navigation. The sense-and-avoid display system, hereafter referred to as the “system,” provides the AV controller with an audiovisual (i.e., audio...

AI Technical Summary

Benefits of technology

[0019]The novelties of this invention include a variety of audiovisual display modes driven by the need for clarity of presentation and ease of interpretation by UAV controllers or AV pilots. In the context of UAV flight operations, the human factor is recognized as a key element for evaluating a UAV controller's capability to maintain safe separation distances from other AVs at a level of safety equivalent to or better than the cockpit-based eyes of pilots in manned aircraft. The audiovisual display modes of the system enable the UAV controller to clearly understand potential airborne conflicts during UAV flight operations, including flights that extend beyond the visual range of ground-based observers and airborne observers in chase planes.

Problems solved by technology

One of the challenges is displaying the computed closest approach information in a readily understandable and timely manner for UAV controllers operating under Visual Flight Rules (VFR).

Images