公开(公告)号：US20220242548A1

公开(公告)日：2022-08-04

申请号：US17166016

申请日：2021-02-03

申请人： Loon LLC

发明人： Aaron Fan ,  Ytai Ben-tsvi ,  Ewout van Bekkum

IPC分类号： B64B1/62 ,  B64B1/64 ,  B64B1/44

摘要： Aspects of the technology relate to altitude control and lateral propulsion systems in lighter-than-air (LTA) platforms configured to operate in the stratosphere. For instance, an LTA platform may include an envelope filled with lift gas and a payload for providing telecommunication or video services. A fault or failure condition with one or more components of these systems, or with the envelope of the LTA platform itself, can prevent a high altitude platform (HAP) from operating as intended, or otherwise reduce its useful life. Onboard systems are configured to handle adverse conditions, such as a fault or failure of the envelope, an altitude control system component, or the lateral propulsion system. This may be done according to one or more ranked lists of adverse operational conditions. Different conditions may map to different corrective actions, which may be prioritized in importance, for instance to reduce the chance of catastrophic system failure.