Patent ID: 11945116
Assignee: ABB SCHWEIZ AG
Field: Handling (Mechanical engineering)
Classification: CPC B  G  H | IPC B  H

Claim 0:
1. A method for problem diagnosis in a robot system comprising one or more robots, the method comprising:
a) receiving a first problem message from a robot of the robot system, the first problem message comprising one or more data elements descriptive of a problem experienced by the robot;
b) receiving a subsequent problem message from a robot of the robot system;
c) if a time elapsed between receipt of the subsequent problem message and receipt of an immediately preceding problem message is shorter than a predetermined threshold, adding the subsequent problem message to a message set which comprises the immediately preceding problem message;
d) if the time elapsed between receipt of the subsequent problem message and receipt of the immediately preceding problem message is longer than the predetermined threshold, terminating the message set of the immediately preceding problem message without adding the subsequent problem message, and establishing a new message set in which the subsequent problem message is the first message;
e) in a terminated message set, identifying at least one descriptive data element which is frequent in the problem messages of the terminated message set or which occurs in a first message of the terminated message set;
f) assigning the at least one descriptive data element as a name to the terminated message set; and
g) identifying in a plurality of terminated message sets certain terminated message sets whose names comprise identical descriptive data elements, and displaying, on a screen, symbols associated with the certain terminated message sets such that a distance between symbols of the certain terminated message sets having identical descriptive data elements is smaller than between symbols of remaining terminated message sets having different descriptive data elements.