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公开(公告)号:US20220203841A1
公开(公告)日:2022-06-30
申请号:US17137950
申请日:2020-12-30
Applicant: LOON LLC
Inventor: Sailesh Prabhu , Jacob Roberts
Abstract: The technology relates to managing nighttime power for solar-powered vehicles. A system may include a sunrise estimator for estimating a time until a next sunrise, a battery state estimator for estimating a battery state, a critical battery estimator for determining a battery threshold, below which subsystems may be powered off, and an alert monitor to determine, and communicate to the solar-powered vehicle, a charge threshold and a restart charge threshold. A method may include operating a vehicle in an operational power mode, estimating a time until a next sunrise, estimating a battery state, determining a preservation battery threshold based on the estimated time until the next sunrise and the estimated battery state, determining a minimum charge threshold based on the preservation battery threshold, monitoring a battery charge level of the vehicle throughout the night, and if the battery charge level drops below the minimum charge threshold, implementing a preservation power mode.
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公开(公告)号:US20190193828A1
公开(公告)日:2019-06-27
申请号:US15850612
申请日:2017-12-21
Applicant: LOON LLC
Inventor: Sameera S. Ponda , Salvatore J. Candido , Jacob Roberts
Abstract: A system for controlling an aerial vehicle includes an aerial vehicle, a ballast coupled to the aerial vehicle, a server including a processor and a memory, and a wireless communication link that communicatively couples the aerial vehicle and the server. the memory stores instructions that, when executed by the processor, cause the server to receive weather data, determine, based on the weather data, that the aerial vehicle is experiencing, or is expected to experience, weather that satisfies a predetermined criterion, and cause the aerial vehicle to decouple at least a portion of the ballast based on a result of the determination.
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公开(公告)号:US20210101667A1
公开(公告)日:2021-04-08
申请号:US17125043
申请日:2020-12-17
Applicant: LOON LLC
Inventor: Sameera S. Ponda , Salvatore J. Candido , Jacob Roberts
Abstract: A system for controlling an aerial vehicle includes an aerial vehicle, a ballast coupled to the aerial vehicle, a server including a processor and a memory, and a wireless communication link that communicatively couples the aerial vehicle and the server. the memory stores instructions that, when executed by the processor, cause the server to receive weather data, determine, based on the weather data, that the aerial vehicle is experiencing, or is expected to experience, weather that satisfies a predetermined criterion, and cause the aerial vehicle to decouple at least a portion of the ballast based on a result of the determination.
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