Communication system for tracked bogies

A communication system for rail-guided carts is a communication system used for rail-guided carts comprising a rail track, one or a plurality of carts traveling on the rail track, and a controller for communicating information with the carts, the communication system being provided with a first communication system for communicating first information from the controller to the carts. The first communication system includes : a first light-emitting element connected to the controller, for outputting the first information as light; an optical fiber arranged along the rail track, having a core which a phosphor or rare earth is added to, and emitting light in the core due to that the light of the first light-emitting element is inputted, the optical fiber leaking the emitted light to the outside; and a first light-receiving element mounted on a cart, for receiving the light leaking from the optical fiber.