Cautioning method, restaurant system, restaurant processing device, and storage medium storing program

A restaurant system, comprising:

• a conveyance control unit that is configured to control a conveying device to deliver an item on a conveying path to a target seat among two or more seats arranged in a restaurant along the conveying path;
• a detection unit that is configured to detect, at each of the two or more seats, a caution state where a foreign object approaches the conveyance path;
• a determination unit that is configured to determine that a caution condition is satisfied when the detection unit detects, during delivery of the item, that the caution state has occurred at any seat among the two or more seats that is located upstream of the target seat in a conveying direction of the conveying path;
• and
• a warning unit that is configured to output caution information for alerting a user that an abnormality may have occurred in the item that is conveyed on the conveying path when the determination unit determines that the caution condition is satisfied.

A restaurant processing device used in a restaurant including a conveying device that is configured to deliver an item on a conveying path to a target seat among two or more seats arranged in the restaurant along the conveying path, the restaurant processing device comprising:

• at least one processor;
• and
• at least one memory storing computer program code, wherein
• the computer program code, when executed by the at least one processor, causes the at least one processor to:
• determine whether a caution state has occurred at each of the two or more seats, the caution state being a state where a foreign object approaches the conveying path;
• determine that a caution condition is satisfied upon determining that the caution state has occurred during delivery of the item at any seat among the two or more seats that is located upstream of the target seat in a conveying direction of the conveying path, and
• output caution information for alerting a user that an abnormality may have occurred in the item that is conveyed on the conveying path upon determining that the caution condition is satisfied.