Trash collection system and trash collection method

A method to collect a trash discarded by a facility by collecting a trash box installed in a space facing a road for a mobile in the facility with a plurality of mobiles,

• wherein each of the plurality of mobiles travels between the facility and a trash collection station while transporting the trash box thereon, and performs a replacement including at least one of:
• a collection of the trash box installed in the space, a transport of the trash box to the trash collection station where the trash box is emptied, and a replenishment of the trash box that has been emptied so as to be installed in the space,
• a management server communicates with a computer of the facility and the plurality of mobiles respectively,
• when the management server receives a collection or a replenishment request of the trash box from the facility, the management server executes selection processing to select a mobile in charge of the replacement in the facility from the plurality of mobiles,
• wherein the facility includes a first facility and a second facility,
• wherein the trash box includes a first trash box collected and removed from the first facility or replenished to the first facility, and a second trash box collected and removed from the second facility or replenished to the second facility,
• wherein, in the selection processing, the management server is configured to:
• receive a collection or replenishment request of the first trash box for the first facility, select from the plurality of mobiles a first mobile to be in charge of the replacement in the first facility, and transmit to the first mobile for the first facility an operation instruction of the replacement in the first facility;
• receive a collection or replenishment request of the second trash box for the second facility during the replacement of the first trash box by the first mobile for the first facility, and determine whether a return condition with respect to the first mobile, which is performing the replacement of the first trash box for the first facility, is satisfied;
• and
• based upon a determination that the return condition is satisfied, transmit an operation instruction of the collection or replenishment request for the second facility to the first mobile,
• based upon a determination that the return condition is not satisfied, select from the plurality of the mobiles, expect for the first mobile, a mobile to be in charge of the replacement for the second facility, and transmit an operation instruction of the replacement for the second facility to the selected mobile in charge of the replacement for the second facility,
• wherein each of the plurality of the mobiles includes a plurality of pedestals configured to transport a plurality of trash boxes thereon, and the determination of whether the return condition is satisfied includes determining whether a number of vacant trash boxes corresponds to a number of trash boxes in the replenishment request.