The present disclosure discloses a handling equipment with a three-stage guiding device, where the first stage guiding assembly limiting fits with the inner sides of the changing-over track at the moment of reversing of the handling equipment, so as to adjust a posture of the handling equipment for a first time and reduce the offset angle of an equipment frame relative to the sub rail. Then, the posture of the handling equipment embedded in the sub rail is adjusted for a second time through the second stage guiding assembly, so as to further reduce the offset angle of the equipment frame relative to the sub rail. Finally, the posture of the handling equipment embedded in the sub rail is adjusted for a third time through the third stage guiding assembly, further reducing the offset angle of the equipment frame relative to the sub rail.

The present disclosure includes systems, devices, and methods for identifying, detecting, and/or tracking rail features. In some aspects, a system includes a camera and a computer having at least one memory, at least one processor configured to receive a plurality of images from the camera, and for each of the images: assigning a location identifier and identifying one or more rail features that correspond to one of a plurality of predetermined rail features. In some systems, the at least one processor is configured to determine a location of each of the one or more identified rail features.

The present disclosure includes systems, devices, and methods for identifying, detecting, and/or tracking rail features. In some aspects, a system includes a camera and a computer having at least one memory, at least one processor configured to receive a plurality of images from the camera, and for each of the images: assigning a location identifier and identifying one or more rail features that correspond to one of a plurality of predetermined rail features. In some systems, the at least one processor is configured to determine a location of each of the one or more identified rail features.

An overhead transport vehicle includes a traveling cart configured to move in a first direction by traveling on a pair of first rails adjacent to each other in a second direction, and move in the second direction by traveling on a pair of second rails adjacent to each other in the first direction, a body configured to swivel with respect to the traveling cart, a transfer device configured to swivel together with the body with respect to the traveling cart and to move an article, and a controller configured or programmed to swivel the body so that when the traveling cart starts traveling, an orientation of the article held by the transfer device is constant with respect to a travel direction of the traveling cart.

An overhead transport vehicle includes a traveling cart configured to move in a first direction by traveling on a pair of first rails adjacent to each other in a second direction, and move in the second direction by traveling on a pair of second rails adjacent to each other in the first direction, a body configured to swivel with respect to the traveling cart, a transfer device configured to swivel together with the body with respect to the traveling cart and to move an article, and a controller configured or programmed to swivel the body so that when the traveling cart starts traveling, an orientation of the article held by the transfer device is constant with respect to a travel direction of the traveling cart.