Recovery method for logistics system

摘要

The object is to maintain the operations of a logistic system. The recovering method of the logistic system includes a plurality of controllers connected with each other via a local network. A recovery method for the logistic system comprises detecting an abnormal state of the plurality of controllers, outputting a switching requesting signal, receiving a control signal, and outputting the control signal. In outputting the switching requesting signal, when an abnormal controller that shows the abnormal state is detected, a switching requesting signal to switch from the abnormal controller to an alternate controller is outputted from the logistic system to the alternate controller. In receiving the control signal, a control signal that controls at least a part of operations of the logistic system instead of the abnormal controller is received from the alternate controller.

主权项

1. A recovery method for a logistic system that includes a plurality of controllers connected with each other via a local network comprising:
detecting whether any of the plurality of controllers n the logistic system is in an abnormal state, wherein the plurality of controllers control transportation of articles within the logistic system; outputting, from the logistic system to an alternate controller, a switching requesting signal to switch a controller that is detected to be in the abnormal state to the alternate controller that is connected to the logistic system via a wide area network when the abnormal state is detected, wherein the alternate controller is configured to perform a same functionality as the controller that is detected to be in the abnormal state; receiving a control signal that controls at least a part of operations of the logistic system from the alternate controller; and outputting the control signal received from the alternate controller.