Abstract: Curved origami-based meta-material, manufacturing method of the same, curved origami-based haptic module and a method for producing active mechanical haptics. The curved origami-based metamaterial includes a panel having a single curved crease extending in its longitudinal direction, which divides the panel into two facets at its two opposite sides. The panel is configured to be folded along the single curved crease to form a folding angle between the two facets. The folding angle is configured to be adjustable to achieve a variable stiffness when loaded in a vertical direction of the folded panel, covering positive stiffness to negative stiffness.

Abstract: Curved origami-based meta-material, manufacturing method of the same, curved origami-based haptic module and a method for producing active mechanical haptics. The curved origami-based metamaterial includes a panel having a single curved crease extending in its longitudinal direction, which divides the panel into two facets at its two opposite sides. The panel is configured to be folded along the single curved crease to form a folding angle between the two facets. The folding angle is configured to be adjustable to achieve a variable stiffness when loaded in a vertical direction of the folded panel, covering positive stiffness to negative stiffness.

Abstract: Origami-based contact members, devices and systems used for active mechanical haptics. The origami-based contact member includes a top plate, a bottom plate, and at least one piece of a curved origami-based metamaterial interposed therebetween, with its top end fixed to the top plate and its bottom end fixed to the bottom plate, the top plate is exposed to be contacted by a user's body site. The metamaterial includes a panel having a single curved crease extending in its longitudinal direction, which divides the panel into two facets. The panel is foldable along the single curved crease to form a folding angle between the two facets. The folding angle is adjustable by rotating the bottom plate to achieve a variable stiffness when loaded in a vertical axis between the top and bottom plates, covering positive stiffness to negative stiffness, to be perceived by the user's body site via contact with the top plate.

Abstract: The present invention provides a method, system, terminal, and storage medium for rapid generation of reference lines. Path planning points are classified according to driving difficulty of different road segments, and the segments with low driving difficulty are assigned reference lines obtained by geometric processing; the segments with high driving difficulty are assigned reference lines obtained by algorithmic processing in combination with vehicle dynamics constraints. Then the reference lines of all segments are combined to form a complete reference line. This method requires little system resource and the algorithm consumes less time.