Underground RTLS · Personnel Safety · Evacuation Headcount

Track People & Machines Underground.
Instant Man-Down Alerts &
Evacuation Headcount

Real-time underground personnel tracking, lone-worker safety, and emergency evacuation headcount for mining operations across Bulgaria, North Macedonia, Serbia, Greece, and Romania. Proven BLE RTLS, industrial Wi-Fi mesh, and Bluetooth 6.1 reliability.

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24/7
Live Mine Deployment
≤20m*
RTLS Accuracy
<2s
Alert Response
IP67
Rugged Rating

* Depends on beacon density and placement; each site's layout is designed to its target.

Underground mine workers with IoT connectivity equipment in a mine tunnel
#MinesConnectedPeopleProtected
Our Solutions

BLE RTLS, Wi-Fi Mesh & RoIP —
Deployed Across Bulgaria & the Balkans

What do we solve?

Deep underground, reliable communication isn't optional—it's essential.

Digital IoT Solutions delivers an integrated system: Wi-Fi, ROIP, and DioTrack, engineered for underground mines across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

Directional Wi-Fi provides strong connectivity through tunnels, reaching long distances with stability.

The system is up to three times more cost-effective and faster to deploy than traditional leaky feeder or cabling solutions.

Self-healing connectivity ensures uninterrupted communication, even if individual cables or nodes are damaged.

ROIP enables clear, instant push-to-talk communication between underground workers and surface dispatchers.

DioTrack delivers real-time tracking of people, mobile equipment, and machinery across all underground levels.

The system requires minimal maintenance, with beacon batteries lasting 5 to 10 years.

All solutions are actively deployed in a major Lead & Zinc mine in North Macedonia, keeping hundreds of workers safe every shift.

Safer, smarter, and fully connected mining operations—powered by Digital IoT Solutions.

Wi-Fi & Wi-Fi Mesh Deployment BLE 6.1 Low-Energy Tracking RTLS Device Synchronization

Smart Infrastructure

Build intelligent industrial environments with sensor-driven automation powered by Bluetooth 6.1 for high-precision positioning, engineered per site through beacon layout design. Monitor energy consumption, detect anomalies, and automate predictive maintenance responses in real time — reducing downtime before it happens.

Predictive Maintenance IoT Channel Sounding readiness BLE 6.1 Asset Tracking

Bluetooth 6.1 Connected Solutions

Leverage Bluetooth 6.1 for high-precision positioning — a breakthrough for RTLS deployments in underground mines. With extended range, enhanced security, and ultra-low BLE power consumption, Bluetooth 6.1 is the backbone of next-generation industrial IoT.

High-Precision Positioning Extended Battery Life Long-Range BLE Connectivity
Underground loader vehicle operating in a mine tunnel
Underground Mine Safety — Personnel Tracking in Action
Underground mine worker in safety gear standing inside a mine tunnel
Real-Time Operations Monitoring — IoT & Wi-Fi Integration
Industrial Wi-Fi & Mesh

Industrial Wi-Fi Mesh for Mines Across Bulgaria & the Balkans

We deploy industrial Wi-Fi mesh networks engineered for deep underground mines and extreme environments — providing the reliable backbone your BLE RTLS, RoIP voice, and SCADA systems run on across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

  • Underground Mine Certified: Battle-tested in active Lead & Zinc underground mines — withstands heavy rock dust, moisture, extreme temperatures, and RF interference.
  • Simplified Deployment: Rapid installation across tunnel faces, shafts, and haulage levels with minimal operational interruption.
  • Low-Maintenance Operation: Industrial-grade components with self-healing routing for continuous maximum uptime and minimal servicing.
  • Mission-Critical Performance: Supports simultaneous real-time personnel tracking, RoIP push-to-talk voice, and vehicle telemetry with zero lag.
  • Starlink LEO Backhaul Integration: Extend broadband connectivity to isolated mines and remote pits across the Balkans using Starlink Low Earth Orbit satellite uplinks integrated directly into your WAN.
  • Dual-WAN Failover & Redundancy: Protect against single points of failure with sub-second failover between terrestrial fibre/LTE and satellite uplinks, supporting continuity of safety-critical communications.
Long underground mine tunnel corridor with infrastructure pipework and lighting
Industrial Wi-Fi Mesh — Reliable Connectivity from Tunnel to Surface
Radio over IP

Advanced Radio over IP (RoIP) Communications for Mines

Bridge underground communication gaps with IP67-rated RoIP handsets — no license fees, no dead zones, no airtime costs. Built for underground mines and industrial operations across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

Unified Communication, Unlimited Reach

Our RoIP system leverages your existing Wi-Fi network to create a powerful, unified communication network. It combines rugged IP67-rated handsets with a dispatcher for seamless management of all underground and surface voice traffic. Communicate one-to-one or broadcast one-to-many across entire mine shifts — with zero license or recurring airtime fees.

Man Down & Lone Worker Safety

Protect underground personnel with automatic Man Down fall detection and Lone Worker alerts — triggering immediate surface response without manual action.

Runs Over Your Existing Wi-Fi Mesh

Integrates directly into your industrial Wi-Fi infrastructure — no separate leaky feeder radio network needed, with rapid deployment across all underground levels and surface facilities.

Underground mine worker using a radio handset for voice communication in a mine tunnel
RoIP Handsets — Seamless Voice Communication Underground & on Surface
BLE RTLS · Personnel & Machinery Tracking

Underground Mine RTLS &
Real-Time Personnel Tracking

From deep underground stopes to surface facilities, our DIO Track BLE RTLS system delivers real-time personnel tracking, vehicle positioning, and evacuation headcount with accuracy within 20m, depending on beacon placement.

  • Man Down & Lone Worker Alerts: Automatic emergency fall and inactivity detection protects lone workers across deep tunnels.
  • Automated Evacuation Headcount: Real-time mustering headcount instantly shows who is safe at refuge chambers or shaft exits.
  • Machine & Asset Visibility: Track loaders, drill rigs, utility trucks, and personnel tags on a unified 2D/3D mine map.
  • Near-Zero Maintenance: Industrial-grade IP67 hardware with 5–10 year beacon battery life built for extreme mining conditions.

Our DIO Track BLE RTLS system is actively proven in a large Lead & Zinc mine in North Macedonia, delivering zero-GPS subterranean tracking across complex tunnels. Serving mine operators across Bulgaria, North Macedonia, Serbia, Greece, and Romania with 100% on-premises data privacy and zero cloud dependence.

Live Tracking DIO Track — Bluetooth Location Tracking System
Assets Online
247
Accuracy
≤20m
Alerts
3
DIO Track underground tracking platform device mounted on a mine tunnel wall
DIO Track — ≤20m BLE Personnel & Asset Tracking Underground
DioTrack · Beyond the Mine

Where Else Can DioTrack Be Used?

DioTrack's BLE RTLS technology isn't limited to underground mines. Wherever people, assets, or equipment need to be tracked in real time — DioTrack delivers visibility, safety, and efficiency.

🏭
Manufacturing Facilities
Factory Floors
Workers waste time searching for tools, equipment, or pallets.
  • Tool & equipment tracking
  • Forklift positioning
  • Worker location monitoring
  • Restricted area access control
  • Production flow analysis
📦
Warehouses & Logistics
Storage & Distribution
Reduced search time and improved inventory visibility.
  • Pallet tracking
  • Forklift positioning
  • Loading dock monitoring
  • Dwell-time analytics
  • Pick-and-pack optimization
🏥
Hospitals & Healthcare
Medical Facilities
Hospitals spend thousands of hours annually searching for equipment.
  • Wheelchair & infusion pump tracking
  • Defibrillator location monitoring
  • Staff safety & lone worker protection
  • Night shift personnel visibility
🏗️
Construction Sites
Active Build Sites
BLE tags on helmets or safety vests provide real-time personnel visibility.
  • Worker tracking & attendance logs
  • Equipment utilization
  • Hazard zone alerts
  • Emergency evacuation management
⚡
Utilities & Energy
Power, Water & Renewables
Critical infrastructure demands continuous lone-worker oversight.
  • Lone worker monitoring
  • Maintenance crew tracking
  • Asset utilization tracking
  • Solar farms & wind farms
  • Water treatment facilities
🚢
Ports & Container Terminals
Marine & Logistics Hubs
Large outdoor areas are ideal for BLE-based RTLS deployments.
  • Container & vehicle tracking
  • Crane operator safety
  • Restricted zone monitoring
🏬
Large Retail & Shopping Centers
Retail & Commercial Spaces
Asset protection and visitor analytics in high-footfall environments.
  • Security staff tracking
  • Panic button integration
  • Visitor flow analytics
  • Asset protection
✈️
Airports
Aviation & Ground Operations
BLE offers a lower-cost alternative to legacy airport RTLS technologies.
  • Ground support equipment tracking
  • Baggage cart tracking
  • Staff location awareness
  • Emergency response coordination
🚛
Fleet Yards & Heavy Equipment
Outdoor Yards & Depots
Track dispersed heavy assets across large open yard environments.
  • Excavators, bulldozers & trucks
  • Attachments & tool tracking
  • Equipment utilization reports
DioTrack BLE RTLS system deployed across warehouses, hospitals, construction sites, and industrial facilities

DioTrack — Real-Time BLE Tracking Across Every Industry

Live Production Case Study
Proven in North Macedonia

Full-Scale Deployment in a Major Lead & Zinc Mine in North Macedonia

All Digital IoT Solutions technologies — DIO Track BLE RTLS, Industrial Wi-Fi Mesh, RoIP Push-to-Talk, and Evacuation Headcount — are actively deployed in an operational Lead & Zinc mine in North Macedonia.

📍

DIO Track RTLS

Real-time tracking of miners and heavy mobile machines across multiple subterranean levels with accuracy within 20m and zero GPS signal.

📶

Industrial Wi-Fi Mesh

Self-healing, high-throughput wireless backbone delivering field-proven coverage through deep rock tunnels and shafts.

🎙️

Radio over IP (RoIP)

IP67 push-to-talk voice handsets connecting miners directly with surface dispatchers with zero airtime costs or license fees.

🚨

Evacuation Headcount & Safety

Instant Man Down fall alerts, emergency SOS buttons, and live mustering headcount dashboards updated in real time on surface screens.

24/7
Live Mine Deployment
✓
Field-Proven Tunnel Wi-Fi Coverage
<2s
Alert Response Time
0
Cloud Dependency (Local LAN)

A Benchmark for Mines Across Southeastern Europe

Operating deep underground in heavy rock conditions with high humidity, dust, and continuous rock blasting, this deployment proves our hardware resilience and software stability.

Mine safety managers and engineers from Bulgaria, North Macedonia, Serbia, Greece, and Romania rely on our Blagoevgrad-based team for rapid on-site surveys, turn-key installation, and 24/7 technical support.

✓ All solutions deployed in an active Lead & Zinc mine
✓ Zero cloud dependency — 100% on-premises data privacy
✓ Direct engineering support from Blagoevgrad, Bulgaria
Technology Spotlight

The Bluetooth 6.1 Advantage

We harness the revolutionary capabilities of Bluetooth 6.1 to deliver unparalleled performance in industrial and mining environments.

Extended Range & BLE Throughput

BLE 6.1 makes connecting devices simpler and more reliable than ever before. Faster data transfer, stronger connections across large facilities, and dramatically extended battery life mean your sensors and tags stay online longer — with less maintenance and less infrastructure overhead.

Ultra-Low Power BLE Sensors

Deploy battery-powered BLE beacons and underground mine sensors that last for years without replacement. Bluetooth 6.1's efficiency is a game-changer for long-term predictive maintenance — reducing operational costs and maintenance overhead significantly.

Enhanced BLE Security

Bluetooth 6.1's advanced encryption protects critical industrial IoT data across your RTLS network, ensuring secure asset tracking operations. Meet GDPR and industry compliance requirements while protecting infrastructure from cyber threats.

Two underground mine workers walking through a tunnel reviewing data on a tablet
Bluetooth 6.1 — Ultra-Low Power, Extended Range, Military-Grade Security
About Digital IoT Solutions

Headquartered in Blagoevgrad — Serving Bulgaria, Macedonia, Serbia, Greece & Romania

Headquartered in Blagoevgrad, Bulgaria, Digital IoT Solutions delivers turnkey underground mine RTLS, real-time personnel and machine tracking, industrial Wi-Fi mesh networks, and Radio over IP (RoIP) communications across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

With all of our solutions proven in an active, large-scale Lead & Zinc mine in North Macedonia, our mission is to eliminate underground blind spots, protect miners with automatic man-down detection, and provide instant evacuation headcount during critical situations.

Turnkey RTLS & Mine Safety

From BLE beacon placement to on-premises map calibration and emergency mustering dashboards, we provide end-to-end deployment for underground mines and industrial plants.

Regional Engineering Hub in Blagoevgrad

Located in Blagoevgrad, Bulgaria, our engineers provide fast on-site installations, hardware delivery, and ongoing technical support across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

Digital IoT Solutions team of four engineers in safety gear reviewing data underground
Digital IoT Solutions — Specialists in Mining RTLS & Industrial Connectivity
LinkedIn

Field notes from underground

Deployment notes, product updates and mine-safety thinking — posted from the sites we actually work on.

Digital IoT Solutions
Digital IoT Solutions linkedin.com/company/dio-track

Underground mine RTLS, industrial Wi-Fi mesh and Radio over IP. Blagoevgrad, Bulgaria — working across Bulgaria, North Macedonia, Serbia, Greece and Romania.

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Digital IoT Solutions Recent

How long would it take you to find one specific person underground right now?

Ask a mine manager that and listen for the pause.

Most can tell you who signed in this morning. Far fewer can tell you where anyone is.

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Digital IoT Solutions Recent

Man Down isn’t a feature. It’s a clock.

Sudden stop, no movement, alarm on the surface in under two seconds.

Everything after that second is your rescue plan, not our software.

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Digital IoT Solutions Recent

Not a pilot. Not a lab.

DIO Track runs 24/7 in an active lead and zinc mine in North Macedonia. People and machines tracked, every shift.

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FAQ

Frequently Asked Questions

Where are Digital IoT Solutions systems currently deployed in production?

All of our solutions — including DIO Track BLE RTLS, industrial Wi-Fi mesh, RoIP voice communications, and evacuation headcount — are deployed and operating 24/7 in an active, large-scale Lead & Zinc mine in North Macedonia. Headquartered in Blagoevgrad, Bulgaria, we serve mining operations across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

Do you provide on-site deployment and support across Bulgaria, North Macedonia, Serbia, Greece, and Romania?

Yes. Headquartered in Blagoevgrad, Bulgaria, Digital IoT Solutions delivers full on-site deployment, hardware installation, RF surveying, and ongoing technical support for mines and industrial facilities across Bulgaria, North Macedonia, Serbia, Greece, and Romania. Our regional presence ensures rapid response times and direct engineering assistance.

How does DIO Track provide real-time personnel and machine tracking inside underground mines without GPS?

DIO Track uses fixed BLE beacons installed along tunnel walls and ceilings as reference anchors. Personnel tags worn by miners and asset tags mounted on underground vehicles continuously scan for nearby beacon signals and forward that data through PoE gateways over a wired LAN to the DIO Track software. The software calculates exact positions in real time and displays them on a live mine map — no GPS required.

What safety alerts and emergency mustering features does DIO Track support?

DIO Track supports automatic Man Down detection (triggered upon sudden inactivity or falls), Lone Worker monitoring, manual SOS buttons on personnel tags, zone violation and geofencing alerts, and real-time evacuation headcount mustering. During emergencies, surface dispatchers immediately see the exact underground headcount and last-known positions of all personnel.

Is the DIO Track hardware rated for harsh underground mine environments?

Yes. All DIO Track hardware — BLE beacons, personnel tags, and PoE gateways — is rated IP67, meaning it is fully protected against heavy rock dust, moisture, and temporary water immersion. The system is proven under active production conditions in deep lead and zinc mines subjected to blasting vibrations and extreme humidity.

Does DIO Track require internet or cloud connectivity to operate underground?

No. DIO Track runs entirely on the customer's own local infrastructure. All data — tracking positions, safety alerts, and historical logs — stays on-premises and is accessible only via the internal LAN. There is no cloud dependency, no subscription lock-in, and zero data leaves the mine network.

How does Industrial Wi-Fi mesh networking work in underground mines?

Industrial Wi-Fi mesh networks use a series of ruggedized wireless access points installed along tunnel sections. Each node connects to its neighbours, forming a self-healing mesh that routes data around obstructions or node failures. Digital IoT Solutions deploys industrial-grade mesh systems certified for underground mine environments across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

What is Radio over IP (RoIP) and how does it benefit underground mine communication?

Radio over IP (RoIP) transmits push-to-talk voice communications over an existing WLAN or IP network, replacing traditional leaky feeder and repeater radio infrastructure. Digital IoT Solutions deploys IP67-rated RoIP handsets that support one-to-one and one-to-many voice communication with no license fees or airtime costs, plus built-in Man Down detection.

Can DIO Track track both personnel and vehicles or heavy equipment underground?

Yes. DIO Track supports both personnel tags (worn as badge clips or integrated in cap lamps) and asset tags attached to underground loaders, haul trucks, drilling rigs, and service vehicles, presenting real-time location and speed data on a unified dashboard.

How can I get a DIO Track underground RTLS deployment quote for my mine in Bulgaria, Macedonia, Serbia, Greece, or Romania?

Contact Digital IoT Solutions directly at contact@digitaliotsolutions.com, call our Blagoevgrad office at +359 88 245 9925, or submit the contact form. The team responds within 24 hours to assess your mine layout, personnel headcount, and safety requirements to provide a tailored deployment proposal.

Get in Touch

Let's build safer mines
and smart operations.

Have a mining or industrial project in mind? Our Blagoevgrad-based engineering team provides site assessments, hardware demos, and turnkey quotes across Bulgaria, North Macedonia, Serbia, Greece, and Romania.

Headquarters: Blagoevgrad 2700, Bulgaria
Serving Bulgaria, North Macedonia, Serbia, Greece & Romania
+359 88 245 9925
contact@digitaliotsolutions.com
Rapid response — proposals & quotes within 24 hours
linkedin.com/company/dio-track

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