The present application relates to an attitude self-correcting underground transportation apparatus based on UWB technology and a control method thereof. A transport clamping and fastening mechanism is mounted on an upper surface of an upper platform part of a six-degree-of-freedom motion platform. An attitude perception and sensing set at least includes three UWB tags, the UWB tags in the attitude perception and sensing set being evenly distributed on the side of the upper platform part of the six-degree-of-freedom motion platform. A control module is configured to send an electric signal to drive the six-degree-of-freedom motion platform and the transport clamping and fastening mechanism to grip an object to be transported, collect positioning information of the attitude perception and sensing set, calculate the attitude of the six-degree-of-freedom motion platform in real time, and perform attitude adjustment with reference to an expected position and attitude to maintain a smooth transportation process.

The present application relates to an attitude self-correcting underground transportation apparatus based on UWB technology and a control method thereof. A transport clamping and fastening mechanism is mounted on an upper surface of an upper platform part of a six-degree-of-freedom motion platform. An attitude perception and sensing set at least includes three UWB tags, the UWB tags in the attitude perception and sensing set being evenly distributed on the side of the upper platform part of the six-degree-of-freedom motion platform. A control module is configured to send an electric signal to drive the six-degree-of-freedom motion platform and the transport clamping and fastening mechanism to grip an object to be transported, collect positioning information of the attitude perception and sensing set, calculate the attitude of the six-degree-of-freedom motion platform in real time, and perform attitude adjustment with reference to an expected position and attitude to maintain a smooth transportation process.

The present invention provides a cargo falling prevention system for a vehicle and a control method, which can determine a defective loaded state of cargo at an early stage to prevent the cargo from falling off a vehicle so as to avoid a collateral accident. Further, the present invention provides a cargo falling prevention system for a vehicle and a control method, which can allow a driver to recognize falling of cargo and to take a quick action to cope with the falling of the cargo.

A selectively rigidizable membrane for cargo management comprises a vacuum bladder, and a first architectural layer and a second architectural layer, each of the first and second architectural layers including a plurality of tiles interconnected by flexural elements, each of the tiles of the first and second architectural layers including at least one constraining element extending therefrom, wherein, when atmospheric pressure is present within the vacuum bladder, the first and second architectural layers are slidably moveable relative to one another and the membrane is flexible, and further wherein, when negative pressure is applied to the vacuum bladder, the first and second architectural layers are forced into engagement with one another, the constraining elements of the first and second architectural layers providing mechanical interference and preventing sliding movement of the first and second architectural layers relative to one another, causing the membrane to become substantially rigid.

A selectively rigidizable membrane for cargo management comprises a vacuum bladder, and a first architectural layer and a second architectural layer, each of the first and second architectural layers including a plurality of tiles interconnected by flexural elements, each of the tiles of the first and second architectural layers including at least one constraining element extending therefrom, wherein, when atmospheric pressure is present within the vacuum bladder, the first and second architectural layers are slidably moveable relative to one another and the membrane is flexible, and further wherein, when negative pressure is applied to the vacuum bladder, the first and second architectural layers are forced into engagement with one another, the constraining elements of the first and second architectural layers providing mechanical interference and preventing sliding movement of the first and second architectural layers relative to one another, causing the membrane to become substantially rigid.

A grasp and release mechanism for carrying a load. The grasp and release mechanism includes a frame; a grasp mechanism attached to the frame and including plural permanent magnets configured to magnetically attach to a ferrous load; a release mechanism attached to the frame, wherein the release mechanism includes a drop plate; and an actuator mechanism attached to the frame and configured to apply a force F to the drop plate. The drop plate is configured to suddenly move relative to the frame to apply the force F to the load.

A grasp and release mechanism for carrying a load. The grasp and release mechanism includes a frame; a grasp mechanism attached to the frame and including plural permanent magnets configured to magnetically attach to a ferrous load; a release mechanism attached to the frame, wherein the release mechanism includes a drop plate; and an actuator mechanism attached to the frame and configured to apply a force F to the drop plate. The drop plate is configured to suddenly move relative to the frame to apply the force F to the load.

A tensioning device is provided for tensioning a retractor in a wheelchair securement system. The tensioning device may include a clutch assembly for communicating rotational movement of a handle to a drive shaft operably connected to the spool of the retractor. The clutch assembly may include a pawl operably connected to the handle, which pawl communicates rotational movement of the handle to a drive sprocket. The clutch assembly may also include a friction member which communicates rotation of the drive sprocket to the drive shaft up to a predetermined amount of rotational force. If the rotational force exceeds the predetermined amount, the friction member will slip and cease to transfer rotational movement from the drive sprocket to the drive shaft. The clutch assembly may also include a compression member for compressing the friction member and drive sprocket whereby the predetermined amount of force may be adjusted.

The invention discloses a dunnage bag arrangement for securing loads, includes an inflatable dunnage bag having a gastight inflatable bladder; and a hanger member connected to the dunnage bag and adapted to being supported on top of loads and adapted to support the dunnage bag in a void between loads. The dunnage bag includes a reinforcing sleeve made of at least one material ply, the sleeve having a first opening and a second opening, and the sleeve being folded and sealed and/or stitched to close off at least one of the openings.

A package release system for delivering packages using radio controlled or autonomous vehicle like a drone. The package is carried at a first angle then released when the package changes angles such as when set on the ground.