Patent Document ID: 8938315
Application ID: 14154164
Patent Flag: 1

Claim One:
1. A method for verifying completion of an assembly task, said method comprising: obtaining three dimensional location coordinates of at least one location sensor within a work cell using an indoor global positioning system (GPS), the at least one sensor attached to a tool used to operate on a feature of a structure to be assembled, the location coordinates obtained upon generation of an event signal by the tool; generating a virtual object locus based on the location coordinates of the at least one location sensor, the virtual object locus corresponding to a computerized assembly schematic of the structure to be assembled and representative of all possible locations of an object end of the tool within the work cell; comparing the virtual locus of possible tool object end locations with the locations of a plurality of candidate features of the structure to be assembled; calculating a probability for each of the candidate features that each respective candidate feature is the feature operated on by the tool, based on the comparison of the virtual locus with the candidate features; and identifying a candidate feature that has the highest probability calculation as the feature operated on by the tool.