A method, apparatus and computer program product are provided to estimate the reference position associated with fingerprint data by selectively utilizing an online positioning system. In the context of a method and in an instance in which a global navigation satellite system is available for location determination, the method determines the location of a data collection device in conjunction with the collection of fingerprint data. In this instance, the location is determined based upon information provided by the global navigation satellite system. However, in an instance in which the global navigation satellite system is unavailable for location determination, the method provides, via a computer network, an online positioning system with at least some fingerprint data collected by the data collection device. In this instance, the method also determines the location of the data collection device in conjunction with the fingerprint data based upon information provided by the online positioning system.

A global positioning system (GPS) receiver may include an antenna configured to receive GPS signals from GPS satellites, a radio frequency (RF) front end configured to pre-process signals received by the antenna, a demodulator/converter configured to perform demodulation and analog-to-digital conversion of output signals received from the RF front end, a clock configured to provide a consistent clock signal, and a digital signal processor configured to receive the clock signal and make time and code measurements associated with determining a location of the GPS receiver based on the signals received by the antenna. The GPS receiver may be configured to eliminate reflected or indirect signals from the time and code measurements.

Disclosed herein are example embodiments for unoccupied flying vehicle (UFV) location assurance. For certain example embodiments, at least one machine, such as a UFV, may: (i) obtain one or more satellite positioning system (SPS) coordinates corresponding to at least an apparent location of at least one UFV; or (ii) perform at least one analysis that uses at least one or more SPS coordinates and at least one assurance token. However, claimed subject matter is not limited to any particular described embodiments, implementations, examples, or so forth.

An augmented reality system including processors and storage devices storing instructions. The instructions may configure the processors to perform operations including determining a location of a mobile device, identifying a facility based on the location, requesting mapping data from a facility server, the mapping data comprising a plurality of vehicles, vehicle location data, and landmarks, identifying one location attribute in a video feed captured by an augmented reality viewer displayed in the mobile device, and determining whether the one location attribute matches the plurality of vehicles or the landmarks. The operations may also include identifying qualified vehicles from the vehicles based on qualification criteria, determining whether the qualified vehicles is in a field of view of the augmented reality viewer based on object attributes and the vehicle location data, and generating a modified video feed by providing an indication associated with qualified vehicles in the field of view.

An augmented reality system including processors and storage devices storing instructions. The instructions may configure the processors to perform operations including determining a location of a mobile device, identifying a facility based on the location, requesting mapping data from a facility server, the mapping data comprising a plurality of vehicles, vehicle location data, and landmarks, identifying one location attribute in a video feed captured by an augmented reality viewer displayed in the mobile device, and determining whether the one location attribute matches the plurality of vehicles or the landmarks. The operations may also include identifying qualified vehicles from the vehicles based on qualification criteria, determining whether the qualified vehicles is in a field of view of the augmented reality viewer based on object attributes and the vehicle location data, and generating a modified video feed by providing an indication associated with qualified vehicles in the field of view.

A device management system is comprised of a server-side proxy component and at least one back-end computer. The server-side proxy component is configured to receive ephemeris and almanac data from a source and information from at least one client describing the geographic location of the client. The server-side proxy component is configured to send the ephemeris and almanac data and the information from the client to a back-end computer. Responsive to receiving this data and information, the computer compiles it into GPS data relevant to the location of the client.

A system for detecting satellite signal spoofing using error state estimates is provided. The system includes at least one satellite receiver to receive satellite signals, at least one memory and at least one controller. The at least one memory is configured to store at least operation instructions. The at least one controller is in communication with the at least one satellite receiver and the at least one memory. The at least one controller is configured to determine state estimates from the received satellite signals. The at least one controller is further configured to determine error state estimates based at least in part on differences in current state estimates and differences in delayed state estimates. The controller further configured to determine if spoofing is occurring in one more of the received satellite signals when the error state estimates are greater than a select threshold.

An electric arc generation device includes an internal combustion engine operatively coupled to a generator, an arc generation power supply powered by the generator, an ECU configured to control a maximum power output level of the engine according to one of a low power routine and a high power routine, and a position signal receiver operatively connected to the ECU. The position signal receiver is configured to receive a position signal, generate current position information based on the position signal, and provide the current position information to the ECU. The ECU is configured to compare the current position information to predetermined region data, and automatically switch from one of the high power routine and the low power routine to a different one of the high power routine and the low power routine based on a result of the comparing, to automatically control the maximum power output level of the engine.

An electric arc generation device includes an internal combustion engine operatively coupled to a generator, an arc generation power supply powered by the generator, an ECU configured to control a maximum power output level of the engine according to one of a low power routine and a high power routine, and a position signal receiver operatively connected to the ECU. The position signal receiver is configured to receive a position signal, generate current position information based on the position signal, and provide the current position information to the ECU. The ECU is configured to compare the current position information to predetermined region data, and automatically switch from one of the high power routine and the low power routine to a different one of the high power routine and the low power routine based on a result of the comparing, to automatically control the maximum power output level of the engine.

The present invention discloses a APNT service positioning and integrity monitoring method and system. The method includes the following steps: determining a positioning accuracy requirement in a target scene; when the positioning accuracy requirement is high-accuracy positioning, determining a position of an aircraft by adopting a combined positioning algorithm, and monitoring the integrity of a combined positioning by adopting a multi-solution separation mode; when the positioning accuracy requirement is low-accuracy positioning, judging whether the aircraft is a high-altitude user; if not, adopting an air-to-air positioning algorithm for a high-altitude user and a low-altitude user based on LDACS to determine the position of the aircraft, and adopting a least square residual method to monitor the integrity of the air-to-air positioning. According to different requirements of users on positioning accuracy and actual application conditions, the present invention can provide a variety of APNT alternative solutions for an aircraft.