Rajant BreadCrumbs in mine networks: design and reliability notes for engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Rajant’s BreadCrumb wireless nodes are being promoted for mines as a fully mobile mesh, with each vehicle, shovel and drill carrying its own node to maintain line-of-sight connectivity as the pit face moves. Unlike fixed access-point Wi-Fi, the system uses multi-radio, multi-frequency links and self-healing routing so data can reroute around blocked paths caused by highwalls, stockpiles or moving plant. For engineers planning autonomous haulage, remote drilling or high-density telemetry, the approach reduces dead zones without constant re‑design of tower locations.
Technical Brief
- Time-sensitive traffic (e.g. control commands, VoIP) can be prioritised via built-in QoS mechanisms.
- Encryption and authentication are embedded at node level, securing inter-vehicle and vehicle-to-infrastructure traffic paths.
- Firmware supports over-the-air updates, reducing the need for physical access to highwall or in-pit installations.
Our Take
Within the 282 Mining stories in our database, relatively few Product-tagged pieces focus on mine-wide wireless backbones, so Rajant’s Australia-focused coverage signals that digital infrastructure is becoming a front-of-house topic rather than a backroom IT issue for operators.
Because this is tagged to Projects rather than a specific mine, Rajant is likely positioning BreadCrumbs as a standardised layer that EPCMs and owners’ teams can specify across multiple Australian sites, rather than as a bespoke solution tied to one flagship deployment.
Australia’s prominence in our recent mining-technology coverage suggests that demonstrating robust, mobile wireless performance there can be a useful reference case for Rajant when bidding into harsher or more remote jurisdictions that look to Australian mines as benchmarks.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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