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公开(公告)号：US20230016836A1
公开(公告)日：2023-01-19
申请号：US17948218
申请日：2022-09-19
发明人： Matthew POTTLE , Esther Anyaegbu , Colin Richard FORD , Paul Hansen , Ronald Toh Ming Wong , Jeremy Charles Bennington , Samuel NARDONI
摘要： Disclosed is route planning using a worst-case risk analysis and, if needed, a best-case risk analysis of GNSS coverage. The worst-case risk analysis identifies cuboids or 2d regions through which a vehicle can be routed with assurance that adequate GNSS coverage will be available regardless of the time of day that the vehicle travels. The best-case risk analysis identifies cuboids or 2d regions through which there is adequate coverage at some times during the day. In case path finding using the worst-case risk analysis fails, a best-case risk analysis can be requested and used to find alternate potential path(s). Time dependent forecast data that covers regions along the alternate potential path(s) can be requested and used to route vehicles, including autonomous drones, from starting points to destinations. This includes generation, distribution and use of risk analysis data, implemented as methods, systems and articles of manufacture.
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公开(公告)号：US20220221586A1
公开(公告)日：2022-07-14
申请号：US17706421
申请日：2022-03-28
摘要： Disclosed is a method of enhancing RTK position resolution using an RTK-enabled GNSS positioning receiver, including receiving an RTK base station signal for differential position calculation, and receiving a forecast assured navigation signal that includes data identifying line-of-sight availability of satellites generating GNSS signals at a position of the GNSS positioning receiver. Also included is excluding from, or reducing the weighting of, GNSS position calculation satellites not identified as line-of-sight available in the forecast assured navigation signal, and computing the GNSS position calculation combining the knowledge of line of sight, or not line of sight, satellites with the RTK base station signal to perform the differential position calculation and to determine an improved calculated position of the GNSS positioning receiver. Further included is unpacking from the forecast navigation signal receiver the data identifying line-of-sight availability of satellites based on an initially calculated location of the GNSS positioning receiver.
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公开(公告)号：US11287531B2
公开(公告)日：2022-03-29
申请号：US17374885
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
IPC分类号： G01S19/08 , G01S19/20 , H04L67/12 , G08G1/0968
摘要： Disclosed is a method of providing dilution of precision (DOP) forecasts for GNSS navigation and optionally degree of confidence, for routing of vehicles or alerting humans in vehicles: accessing a 3D map of an area including structure solids and generating cuboids in spaces not contained in the structure solids, and iteratively over time increments, calculating GNSS satellites visible from the cuboids using the 3D map and, using at least the calculated visibility, determining a DOP forecast for GNSS signals observable in the cuboids at the time increments. The disclosed method also includes compressing the calculated DOP forecast spatially and temporally, and distributing the compressed DOP forecast via a content delivery network (CDN), responsive to queries from requestors to an API of the CDN, whereby the requestors' systems can take into account the DOP forecast for routing the vehicles or alerting the humans in the vehicles to a predicted navigation impairment.
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公开(公告)号：US20220018971A1
公开(公告)日：2022-01-20
申请号：US17374882
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of improving accuracy of a GNSS receiver that has a non-directional antenna, with the receiver sending CDN a request for predictive data for an area that includes the receiver. Responsive to the query, the method includes receiving data regarding LOS visibility for the receiver with respect to individual satellites, and the receiver using the data for satellite selection, for choosing some and ignoring other individual satellites. Also disclosed is using the data to exclude from satellite selection at least one individual satellite based on lack of LOS visibility to the individual satellite. Further disclosed is recognizing and rejecting spoofed GNSS signals received by a GNSS receiver that has a non-directional antenna, in response to a CDN response to a request for predictive data for an area that includes the receiver, with the receiver comparing the data with measures of signals received from individual satellites.
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公开(公告)号：US11802972B2
公开(公告)日：2023-10-31
申请号：US17706421
申请日：2022-03-28
IPC分类号： G01S19/08 , H04L67/12 , G08G1/0968
CPC分类号： G01S19/08 , H04L67/12 , G08G1/0968
摘要： Disclosed is a method of enhancing RTK position resolution using an RTK-enabled GNSS positioning receiver, including receiving an RTK base station signal for differential position calculation, and receiving a forecast assured navigation signal that includes data identifying line-of-sight availability of satellites generating GNSS signals at a position of the GNSS positioning receiver. Also included is excluding from, or reducing the weighting of, GNSS position calculation satellites not identified as line-of-sight available in the forecast assured navigation signal, and computing the GNSS position calculation combining the knowledge of line of sight, or not line of sight, satellites with the RTK base station signal to perform the differential position calculation and to determine an improved calculated position of the GNSS positioning receiver. Further included is unpacking from the forecast navigation signal receiver the data identifying line-of-sight availability of satellites based on an initially calculated location of the GNSS positioning receiver.
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公开(公告)号：US20230333260A9
公开(公告)日：2023-10-19
申请号：US17374882
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of improving accuracy of a GNSS receiver that has a non-directional antenna, with the receiver sending CDN a request for predictive data for an area that includes the receiver. Responsive to the query, the method includes receiving data regarding LOS visibility for the receiver with respect to individual satellites, and the receiver using the data for satellite selection, for choosing some and ignoring other individual satellites. Also disclosed is using the data to exclude from satellite selection at least one individual satellite based on lack of LOS visibility to the individual satellite. Further disclosed is recognizing and rejecting spoofed GNSS signals received by a GNSS receiver that has a non-directional antenna, in response to a CDN response to a request for predictive data for an area that includes the receiver, with the receiver comparing the data with measures of signals received from individual satellites.
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公开(公告)号：US20220018972A1
公开(公告)日：2022-01-20
申请号：US17374891
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard FORD , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam GLEAVE , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of path planning using a GNSS Forecast, requesting the GNSS Forecast of signal obscuration on behalf of a vehicle travelling in a region, receiving and using the Forecast to plan a path or route that has GNSS signals available over the path or route that satisfy a predetermined criterium. Also taught are GNSS Forecasts and planned paths or routes for a plurality of flying vehicles used by a flight control system, requesting the GNSS Forecast of signal obscuration on behalf of a flying autonomous or automated vehicle travelling in a region, receiving and using the Forecast and to plan a path with GNSS signals available over the path that satisfy predetermined criteria including accommodating real-time changes in flight paths, without leaving space, that satisfies the predetermined criteria. Also taught is certifying performance of GNSS receivers used on a flying vessel.
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公开(公告)号：US11789161B2
公开(公告)日：2023-10-17
申请号：US17374882
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of improving accuracy of a GNSS receiver that has a non-directional antenna, with the receiver sending CDN a request for predictive data for an area that includes the receiver. Responsive to the query, the method includes receiving data regarding LOS visibility for the receiver with respect to individual satellites, and the receiver using the data for satellite selection, for choosing some and ignoring other individual satellites. Also disclosed is using the data to exclude from satellite selection at least one individual satellite based on lack of LOS visibility to the individual satellite. Further disclosed is recognizing and rejecting spoofed GNSS signals received by a GNSS receiver that has a non-directional antenna, in response to a CDN response to a request for predictive data for an area that includes the receiver, with the receiver comparing the data with measures of signals received from individual satellites.
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公开(公告)号：US11536855B2
公开(公告)日：2022-12-27
申请号：US17374891
申请日：2021-07-13
发明人： Jeremy Charles Bennington , Raphael Grech , Dennis Berres , Rafal Zbikowski , Colin Richard Ford , Richard West , Paul Hansen , Arthur Edward Neeves , Esther Anyaegbu , Adam Gleave , Ronald Toh Ming Wong
摘要： The technology disclosed teaches a method of path planning using a GNSS Forecast, requesting the GNSS Forecast of signal obscuration on behalf of a vehicle travelling in a region, receiving and using the Forecast to plan a path or route that has GNSS signals available over the path or route that satisfy a predetermined criterium. Also taught are GNSS Forecasts and planned paths or routes for a plurality of flying vehicles used by a flight control system, requesting the GNSS Forecast of signal obscuration on behalf of a flying autonomous or automated vehicle travelling in a region, receiving and using the Forecast and to plan a path with GNSS signals available over the path that satisfy predetermined criteria including accommodating real-time changes in flight paths, without leaving space, that satisfies the predetermined criteria. Also taught is certifying performance of GNSS receivers used on a flying vessel.
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