Differential GPS brochure
Document type: Brochure
Categories: Brochure

THE FIRST EVER TAGGING
 & HOLE IDENTIFICATION
 METHOD USING
 DIFFERENTIAL GLOBAL
 POSITIONING SYSTEM

dynonobel.com

This is why we developed a user-friendly Differential GPS (DGPS) system that
is fully integrated with the CE4 Tagger and Commander system. The system
provides sub-one-meter accuracy for blasthole tagging/logging.

The accuracy in DGPS is achieved by using the Commander at a known (surveyed
location) position that broadcasts correction data to one or more Taggers. The
Taggers then adjust their perception of where they are using the correction data.
DGPS is a vast improvement to GPS because it reduces or eliminates signal
degradation, resulting in improved accuracy.

Features Benefits
• Using the Plan Mode, the DGPS Tagger The CE4 Commander DGPS system
 automatically detects the blasthole is a groundbreaking technology
 location using the GPS coordinate from advancement that:
 ViewShot 3D and automatically assigns the • Eliminates potential human error by semi-
 correct delay to the detonator as per the automnomous tagging of blastholes to
 blast design. improve blast outcomes.
• The tagging process does not need to • Ensures accurate tagging of blastholes to
 follow a specific tagging path. improve blast outcomes.
• When drill rigs are not equipped with GPS • Uses easy, reliable, and fast deployment to
 logging, the DGPS Tagger can be used to speed up blasting process.
 accurately log the blasthole positions.
 • Allows for future fully autonomous (robotic)
 deployment and tagging.

What is the Difference Between Regular
GPS and Differential GPS?
Normal GPS provides the position of an object using signals generated
by satellites revolving around the earth. GPS technology uses standalone
receivers where the location is directly calculated but is prone to errors. As a
result, GPS can gain a nominal accuracy of 32-50 feet (10-15 meters), which is
not suitable for blasthole positioning.

High Accuracy DGPS (Differential Global Positioning System)
The DGPS is a high-accuracy (sub-3.28 feet/one meter) addition to the CE4
Commander blasting system. The market-leading Commander has
been enhanced with the DGPS technology to accurately detect blasthole positions.

High-accuracy Differential GPS will revolutionize the deployment and tagging of the 4G
detonators for surface mining through autonomous detonator tagging and/or blasthole
logging. Potential human error regarding incorrect blasthole identification or incorrect delay
assignment is practically eliminated.

BLAST DESIGN

 DOWNLOAD PLAN
 TO TAGGER

 DGPS REFERENCE
 BEACON

ViewShot 3D®
The ViewShot 3D blast software facilitates the planning, design, and simulation of a blast through a flexible
and feature-rich user interface.

Using DGPS in Plan Mode, drill rig blasthole GPS coordinates are transferred to ViewShot 3D to do the
final blast design timing sequence. The blast plan and timing sequence are then downloaded onto the
DGPS Tagger. If drill rigs are not equipped with GPS, accurate blasthole coordinates can be logged by
the DGPS Tagger on the bench and then transferred to ViewShot 3D to provide an accurate layout of the
blasthole positions used in the blast design.

 How Does the DGPS System Work?
 GPS
 Satellites

 Communication
 between
 the Commander
 Reference
 Communication Beacon
 between and Satellites
 the DGPS Tagger
 and the GPS
 Satellites

 Commander
 Reference
 Beacon connected
 DGPS to a DGPS antenna,
 Tagger which is accurately
 positioned at a
 Communication known surveyed
 between the DGPS GPS location
 Tagger and the
 Commander
 Reference Beacon

DigiShot Plus 4G is a registered trademark of DetNet South Africa (Proprietary) Ltd.
 ® ®

01-2024 © Dyno Nobel Inc. 2010

dynonobel.com/dgps