Abstract: The passenger boarding includes a rotunda, a tunnel portion, a cab and a first detection device configured to detect an angle of the rotunda from the first axis around an origin point, and a second detector configured to measure a distance of the tunnel from the origin point in the extensible/contractable direction, provided at the tunnel.

Abstract: The passenger boarding bridge includes a first tunnel including a first fixed passage on which a passenger walks; and a second tunnel including a second fixed passage on which the passenger walks, the first tunnel being inserted into the second tunnel from one end side of the second tunnel, the second tunnel having another end side connected to a cab, the second fixed passage being fixed to the another end side. The second tunnel includes a movable passage including multiple plate floor members in a chain manner, the movable passage having one end fixed to the second fixed passage of the second tunnel in a pivotable manner. Accordingly, a passenger boarding bridge in which a passage level difference is eliminated at a joint part between an inner tunnel and an outer tunnel can be realized.

Abstract: The passenger boarding bridge includes a first tunnel including a first fixed passage on which a passenger walks; and a second tunnel including a second fixed passage on which the passenger walks, the first tunnel being inserted into the second tunnel from one end side of the second tunnel, the second tunnel having another end side connected to a cab, the second fixed passage being fixed to the another end side. The second tunnel includes a movable passage including multiple plate floor members in a chain manner, the movable passage having one end fixed to the second fixed passage of the second tunnel in a pivotable manner. Accordingly, a passenger boarding bridge in which a passage level difference is eliminated at a joint part between an inner tunnel and an outer tunnel can be realized.

Abstract: A plurality of image pickup devices are set on the ground to pick up images of an anti-collision light located on an aircraft to be guided. A position reference producing section produces a signal representing a position reference of the aircraft in accordance with picked-up image signals from the plurality of image pickup devices. A display data producing section produces at least one of direction information and distance information as guidance information to be provided to pilots of the aircraft in accordance with the signal representing the position reference of the aircraft which is supplied from the position reference producing section. A display unit displays at least one of the direction information and distance information from the display data producing section at a position on the ground where the pilots can see and recognize the information.