A ground controller in a travelling vehicle system stores travel permissions for a curved section that are provided to travelling vehicles, and deletes the travel permissions when the travelling vehicles leave the curved section. When a request for a permission to travel in the curved section is received from a travelling vehicle, the ground controller references the memory, provides a first travel permission if a permission to travel has not been provided to another travelling vehicle, and provides a low-order travel permission that permits travel with a lower speed than the first travel permission if a permission to travel has been provided to another travelling vehicle.
TRAVELLING VEHICLE SYSTEM AND METHOD FOR CONTROLLING TRAVEL OF TRAVELLING VEHICLE IN CURVED SECTION
2015-07-02
Patent
Electronic Resource
English
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