A service unmanned aerial vehicle (UAV) includes a flight system, a status component, a navigation system, and a recovery component. The flight system is for flying the service UAV. The status component is configured to determine that a first UAV is disabled. The navigation system is configured to fly the service UAV to a landing location of the first UAV in response to the status component determining that the first UAV is disabled. The recovery component is configured to recover one or more of a payload of the first UAV and a portion of the first UAV.

The presently disclosed subject matter includes a collision warning and avoidance system and method for detecting a collision risk between an interrogating aircraft and at least one interrogated aircraft. Signals received from the at least one interrogated aircraft or by the at least one interrogated aircraft and at least one other interrogating aircraft are used for determining various situation awareness data which is used for determining whether the interrogating aircraft is in a risk of collision. If indeed a collision risk exists a collision warning is generated, the collision warning including data indicative of at least an estimated location of the at least one interrogated aircraft.

In one example, a method for combining radio surveillance data includes receiving air traffic surveillance data from one or more aircraft via one or more remotely operable data link systems. The method further includes combining the air traffic surveillance data from the one or more aircraft into a composite air traffic surveillance data set. The air traffic surveillance data is based at least in part on radio surveillance messages received by the one or more aircraft from additional aircraft.

Systems, methods and computer-storage media are provided for use of navigational aids. Three-dimensional graphical representations of flight plans, flight paths, waypoints, etc., may be displayed to improve situational awareness. Additionally, dynamic monitoring of airports, waypoints, traffic, etc., may be performed so that real-time updates are available to users. The real-time updates will not only include updated location information and any relevant navigational markers (e.g., updated waypoints, new traffic, etc.) but will also include detailed information related to the navigational markers such as a distance from the marker, an airspeed of the marker (if applicable), and the like.

Systems and methods for UAV safety are provided. An authentication system may be used to confirm UAV and/or user identity and provide secured communications between users and UAVs. The UAVs may operate in accordance with a set of flight regulations. The set of flight regulations may be associated with a geo-fencing device in the vicinity of the UAV.

Processing arrangement for managing temporary updates to a map for use by vehicular navigation systems in vehicles in which a communications system at a remote site receives wireless communications from each vehicle including information about presence of an object or condition at a specific location automatically identified at the specific location without requiring manual entry of data about the object or condition at the specific location and that affects movement of vehicles on a roadway. A processor generates a map update for use by vehicular navigation systems based on the identified object or condition at the specific location which is transmitted to any vehicle in a vicinity of the specific location to cause the vehicular navigation system of that vehicle to use a map with the generated map update to display or otherwise indicate the presence of the object or condition at the specific location.

Disclosed herein are example embodiments for unoccupied flying vehicle (UFV) location confirmance. For certain example embodiments, at least one machine, such as a UFV, may: (i) obtain at least one indication of at least one location of a UFV; or (ii) attempt to counter at least one attack against a location determination for the UFV. However, claimed subject matter is not limited to any particular described embodiments, implementations, examples, or so forth.

Disclosed are an unmanned aerial vehicle positioning method and apparatus, and a storage medium. The unmanned aerial vehicle positioning method comprises: when a first unmanned aerial vehicle loses a satellite positioning signal, determining first information and second information of each of at least three second unmanned aerial vehicles on the basis of a UWB signal, wherein the first information represents a relative distance between each second unmanned aerial vehicle and the first unmanned aerial vehicle, and the second information is carried by the second unmanned aerial vehicle in a transmitted UWB signal and represents real-time positioning information measured by the second unmanned aerial vehicle on the basis of the satellite positioning signal; and determining real-time positioning information of the first unmanned aerial vehicle according to the first information and the second information of each of the at least three second unmanned aerial vehicles.

A system and method for deploying multiple unmanned aerial vehicles (UAVs) from a single landing site is presented. The method includes: generating a hovering perimeter for a landing site, the hovering perimeter including a plurality of hovering points and a plurality of approach vectors, each hovering point having spatial coordinates and being uniquely associated with one of the plurality of approach vectors, wherein a flight path based on a first approach vector of the plurality of approach vectors does not overlap with a flight path based on a second approach vector of the plurality of approach vectors; and configuring a first UAV of a plurality of UAVs to: navigate to a first hovering point of the plurality of hovering points; hover at the first hovering point; and navigate from the first hovering point to the landing site when the first UAV is authorized to land at the landing site.

A method for providing an aircraft display includes the steps of receiving an indication of a current position and altitude of the aircraft, receiving air traffic information for another aircraft within a predetermined range of the current position of the aircraft, and determining whether an element of the traffic information for the another aircraft is missing from the received air traffic information. If an element is missing, the method further includes beginning a timer to determine a length of time that the element is missing. Still further, the method includes the step of, after a predetermined time has elapsed that the element is missing according to the timer, displaying an indication of the another aircraft along with the length of time that the element is missing.