Dyno Nobel’s new differential global positioning system (DGPS) is designed to semi-autonomously tag blast holes in order to speed up the blasting process and reduce human errors. Users can download the blast plan and timing sequence onto the DGPS, which then uses a reference receiver to automatically detect, tag and log blast holes without any third-party systems. “When blast hole GPS coordinates are not available the DGPS tagger can log accurate hole positions, and those hole positions can be imported into ViewShot 3D for the user to accurately optimize the blast pattern,” explained Izak Mey, electronics engineer at Dyno Nobel Americas. According to Dyno Nobel, the system also offers flexible tagging options and comes equipped with GPS fault-finding, which allows the user to locate any missed or faulty holes.