METHODS AND APPARATUS FOR ASSESSING MARKING OPERATIONS BASED ON ACCELERATION INFORMATION

摘要

Marking devices of the type used for marking a presence or an absence of underground facilities and including motion detectors such as accelerometers are described. Methods of collecting and analyzing motion information indicative of the motion of a marking device are also described. The motion information may be used for various purposes, including documenting performance of a marking operation and/or performance of a particular technician, pattern determination and comparison, as well as quality control assessment.