Abstract: A vehicle collision avoidance method includes receiving host vehicle driving information, receiving remote vehicle driving information, generating a host vehicle position function and a remote vehicle position function, setting a transformation coordinate system, calculating a rotation angle, transforming the host vehicle position function and the remote vehicle position function to a transformed host vehicle position function and a transformed remote vehicle position function, respectively, using the rotation angle, determining a collision possibility between the host vehicle and the remote vehicle using the transformed host vehicle position function and the transformed remote vehicle position function, and controlling the host vehicle depending on the collision possibility.

Abstract: A vehicle collision avoidance method includes receiving host vehicle driving information, receiving remote vehicle driving information, generating a host vehicle position function and a remote vehicle position function, setting a transformation coordinate system, calculating a rotation angle, transforming the host vehicle position function and the remote vehicle position function to a transformed host vehicle position function and a transformed remote vehicle position function, respectively, using the rotation angle, determining a collision possibility between the host vehicle and the remote vehicle using the transformed host vehicle position function and the transformed remote vehicle position function, and controlling the host vehicle depending on the collision possibility.

Abstract: The present invention relates to a two-stage lock structure of an ATM that can prevent an operator from being injured during the removal of a currency note jam. The two-stage lock structure includes: a temporary stack to be moved upward by rotating about a temporary stack hinge shaft to open a conveyance path when a currency note jam occurs; a protruding member protruding from one surface of the temporary stack; a stopper that includes a first aperture and a second aperture into which the protruding member is inserted to hold the temporary stack rotated about a hinge shaft, and a slide aperture in which the protruding member slides and is rotated about a stopper hinge shaft; and an elastic member provided to pull the stopper in a direction where the protruding member is held in the first or second aperture.