Unmanned Rail Vehicle And Method Of Determining Its Position

    公开(公告)号:US20220266882A1

    公开(公告)日:2022-08-25

    申请号:US17597049

    申请日:2020-06-12

    Applicant: ABB Schweiz AG

    Abstract: An unmanned rail vehicle for surveillance, inspection and/or maintenance of an infrastructure, the infrastructure including a rail structure with a rail, the unmanned rail vehicle being movable along the rail and the unmanned rail vehicle including a first position sensor system configured for measuring, by interaction with the rail structure, first position data indicative of a position of the unmanned rail vehicle along the rail, a second position sensor system configured for measuring, by interaction with the rail structure, second position data indicative of a position of the unmanned rail vehicle along the rail, a position determining unit configured for receiving and combining first and second position data to determine the position of the unmanned rail vehicle along the rail.

    Submersible drone having active ballast system

    公开(公告)号:US10583905B2

    公开(公告)日:2020-03-10

    申请号:US15834396

    申请日:2017-12-07

    Applicant: ABB Schweiz AG

    Abstract: A submersible inspection drone used for inspection can include a ballast system used to control depth of the submersible inspection drone. The submersible can be configured to communicate to a base station using a wireless transmitter and receiver. The ballast system can include a pressure vessel for storing fluid and a bag for inflating and deflating as it receives a fluid. Buoyancy of the submersible inspection drone can be provided by change in density of the pressure vessel as a compressible gas is expanded when the ballast bag is caused to inflate or deflate. A pump can be used to draw fluid from the ballast bag and store the fluid in the pressure vessel. In one form the pressure vessel can include a compressible fluid and an incompressible fluid, where the incompressible fluid is used to inflate and deflate the bag.

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