Methods, apparatus and systems for marking material color detection in connection with locate and marking operations

摘要

Systems, methods, and apparatus for determining a color of marking material dispensed by a marking device onto a surface to mark a presence or an absence of at least one underground facility within a dig area that is planned to be excavated or disturbed during excavation activities. In some embodiments, one or more camera systems (e.g., digital video cameras) are mounted on a marking device to capture information (e.g., one or more of image information, color information, motion information and light level information) relating to the surface being marked. The camera system(s) may be mounted near a nozzle of a marking material dispenser, so as to capture information relating to freshly dispensed marking material on the surface being marked. The captured information may be analyzed to determine a color of the freshly dispensed marking material, which may then be correlated with a type of facilities being marked.