Mine Safe Global Collision avoidance systems for mining

Contact sales

Contact Sales

Chevron pointing right Request A Demo

HaloGuard

An underground collision prevention system providing 360-degree awareness and automated machine intervention in confined underground spaces.

HaloGuard Underground Collision Prevention System


Prevents collisions before they happen.

Underground collisions are preventable and costly. HaloGuard delivers comprehensive protection through multi-layer detection technology, combining long-range RF sensors, precision LiDAR monitoring, and automated machine intervention to prevent collisions in confined underground spaces.

Our ISO 21815-compliant system provides 360-degree awareness around every vehicle, alerts operators to approaching hazards, and automatically intervenes when necessary—while capturing complete data logs that document every event for compliance and investigation. 

Created by potrace 1.16, written by Peter Selinger 2001-2019 Read More
  • Ensures compliance with MHSA Regulation 16.1 through automated machine intervention (Level 9) and personnel accountability.
  • 360° Complete awareness coverage around every vehicle.
  • Multi-layer detection combining RF and LiDAR technology.
  • Real-time alerts and automated machine intervention.
  • ISO 21815 Global collision prevention standard compliance.
Download Brochure

Core Capabilities

Protect your operators, equipment, and operations with ISO 21815-compliant safety systems engineered for the harshest underground environments.

Comprehensive Collision Prevention

  • Multi-layer detection combining Prox-D sensors and LiDAR technology.
  • 360-degree awareness with automated machine intervention.
  • Real-time alerts for operators and nearby personnel.
  • Coordinated protection for machine-to-machine and pedestrian-to-machine scenarios.
  • Configurable intervention thresholds based on zone and operational requirements.

Intelligent Control Architecture

  • L9 Gen 2 Controller with dual CANBUS channels (machine + ISO21815 safety networks).
  • Wi-Fi connectivity for over-the-air updates and log synchronization.
  • Onboard storage for machine and ISO logs.
  • Access Controller Unit (ACU) for driver identification and authorized operation.
  • Real-time sensor data processing with millisecond response times.

Advanced Sensor Technology

  • Prox-D sensors: Time-of-Flight RF technology at 2.4 GHz with 150-meter detection range.
  • Class One LiDAR: Eye-safe 905nm pulsed laser with configurable scan rate for precision monitoring.
  • Strategic sensor placement for complete 360-degree coverage.
  • Precision blind spot and pinch point monitoring.
  • Environmental resilience for dust, moisture, and temperature extremes.

Traffic Management & Data Logging

  • Beacon Network for zone management and virtual boundary creation.
  • Wi-Fi Transfer Station for automatic log synchronization.
  • Event reconstruction capability.
  • Complete logging of detection events, alerts, interventions, and operator responses.
  • Redundant log storage across controller and concentrator units.

Comprehensive Data Logging Protects Your Operation

When incidents occur, you need complete, tamper-proof records for investigation and legal protection. HaloGuard's advanced logging ensures: redundant data storage across multiple system components, millisecond-accurate timestamps for event reconstruction, comprehensive capture of sensor data, alerts, and interventions, and exportable records ready for regulatory review. HaloGuard's dual-storage architecture meets the highest industry standards.

Request a Demo

Multi-Layer Detection Beats Single-Technology Systems

Most collision prevention systems rely on a single detection method—either RF or LiDAR. HaloGuard combines both, with each technology compensating for the other's limitations. Prox-D RF sensors detect through obstacles and around corners but lack precision. LiDAR provides centimeter-accurate mapping but requires line-of-sight. Together, they deliver complete 360-degree coverage with both early warning and precise obstacle mapping.

Speak To Sales

Modular System Components

L9 Gen 2 Controller/Display

The system’s central nervous system—processing sensor data, managing alerts, and controlling machine intervention while providing real-time operator feedback.

Key Features:

  • Dual CANBUS channels: separate networks for machine control and ISO21815 safety protocols.
  • Wi-Fi connectivity for over-the-air firmware updates and automatic log synchronization.
  • Advanced onboard storage preserves complete machine and ISO event logs for regulatory compliance.
  • High-visibility display shows detection zones, approaching hazards, and system status.
  • Weatherproof design rated for underground temperature, humidity, and vibration extremes.

The Concentrator

Data aggregation hub that manages sensor inputs, coordinates system responses, and maintains redundant event logs for compliance and incident investigation.

Key Features:

  • Dual CAN channels: dedicated vehicle network and ISO 21815 safety network.
  • USB and RS232 debug ports for system diagnostics and maintenance.
  • Redundant log storage for complete incident reconstruction and regulatory compliance.
  • Real-time data processing and distribution to all system components.
  • Hot-swappable design for rapid field replacement without system shutdown.

Prox-D Sensors

Long-range RF detection sensors that create protective zones around machines and alert operators to approaching vehicles and personnel.

Key Features:

  • Utilizes Time-of-Flight (ToF) technology at 2.4 GHz to detect hazards up to 150 meters away, including non-line-of-sight detection around corners.
  • Multiple sensors per machine provide full 360-degree coverage.
  • Automatic range adjustment based on operational zones.
  • Low power consumption with robust environmental protection.

LiDAR Units

Precision laser scanning technology that monitors blind spots, pinch points, and static obstacles with centimeter-level accuracy.

Key Features:

  • Class One eye-safe 905-nanometer pulsed laser (meets international safety standards).
  • Configurable scan rate from 1-1000 Hz based on application requirements.
  • Precise detection of personnel, equipment, and infrastructure.
  • Real-time obstacle mapping in confined spaces.
  • Integration with Prox-D sensors for complete detection coverage.

Low-Profile Antenna

Multi-function antenna supporting GPS positioning for surface operations and RF communication for underground vehicle-to-vehicle and vehicle-to-pedestrian connectivity.

Key Features:

  • GPS functionality for surface mining and portal areas.
  • RF communication backbone for underground collision prevention network.
  • Low-profile design minimizes damage risk in confined spaces.
  • Weather-sealed construction for harsh environments.
  • Compatible with existing mine communication infrastructure.

Access Controller Unit (ACU)

Driver identification and authorization system that prevents unauthorized machine operation and links every ignition cycle to a verified operator ID.

Key Features:

  • Dallas or i-Touch fob recognition for operator authentication.
  • Prevents unauthorized machine operation and startup.
  • Automatic operator ID logging tied to shift data and event records.
  • Integration with site access control and training verification systems.
  • Configurable authorization levels based on operator qualifications.

Beacon Network

Infrastructure system that creates virtual traffic management zones throughout underground operations, defining controlled areas and speed restrictions.

Key Features:

  • Defines traffic management zones and virtual boundaries.
  • Creates controlled areas integrated with site safety protocols.
  • Supports zone-based speed restrictions and operational rules.
  • Wireless configuration and real-time zone modifications.
  • Scalable architecture grows with expanding underground operations.

Seamless Integration With All OEM Brands

Built to work with every machine in your underground fleet, regardless of manufacturer or age.

Request A Demo

Request A Demo

Request A Demo

Request A Demo

Request A Demo

Request A Demo

Request A Demo

Request A Demo

Regulatory & Technical Alignment

Certified for Global Underground Mining Operations.

ISO Certification ISO 21815-Compliant

Ensures full compliance with the global communication and functional protocol for Collision Avoidance (CxD) and Machine Control Interface (MCI) integration.

MOSH CPS Blueprint MOSH CPS Blueprints

Aligns with MOSH standards for the design and implementation of collision prevention systems.

Mine Health & Safety Act Mine Health & Safety Act

Ensures full compliance with MHSA Regulation 16.1 by providing automated machine intervention (Level 9) to prevent TMM-related incidents.

Chief Inspector Explosives & MHSA MTEx Certified

Our systems are MTEx certified, ensuring explosion-prevention compliance (SANS 60079) for safe operation in hazardous 'fiery' mine environments.

ICASA Certification ICASA Certification

All products are officially approved by the Independent Communications Authority of South Africa, ensuring legal operation and reliability.

Chief Inspector Explosives & MHSA IP Certified

Equipment has been tested to comply to the required standards, ensuring long-term durability and safety compliance.

Frequently Asked Questions

HaloGuard uses multi-layer detection that doesn’t rely on visibility. The system combines long-range Prox-D RF sensors (up to 150m range) that detect approaching machines and personnel through rock walls and around corners, with precision LiDAR units that map the immediate environment using laser scanning. When potential collisions are detected, the system provides escalating alerts to operators and can automatically intervene by reducing machine speed or applying brakes—all before the operator can visually see the hazard.

The system responds with escalating interventions based on proximity and closing speed. Initially, operators receive visual and audible warnings on the L9 Gen 2 display. As the hazard gets closer, warnings intensify. If the operator doesn’t respond appropriately, the system automatically intervenes by reducing throttle, limiting speed, or applying brakes to prevent collision. All detection events, warnings, and interventions are logged with millisecond precision for incident review and compliance documentation.

Yes. HaloGuard is designed as an equipment-agnostic system that integrates with any underground mining machine regardless of manufacturer. The dual CANBUS architecture connects to your existing machine network while maintaining a separate ISO21815-compliant safety network. We’ve successfully deployed on equipment from all major OEMs including Caterpillar, Sandvik, Komatsu, Epiroc, and others. Our engineering team can configure the system for specialized or custom equipment as well.

Installation on a single machine typically takes 6-12 hours depending on vehicle type and configuration. We schedule installations during maintenance windows or shift changes to minimize operational disruption. For fleet-wide deployments, we can install multiple systems simultaneously using a phased approach that maintains production continuity. The modular design allows rapid installation without extensive machine modifications, and our certified technicians handle the complete process from mounting hardware to system commissioning.

HaloGuard is designed for minimal maintenance in harsh underground environments. Regular maintenance includes: monthly sensor cleaning (removing dust buildup from LiDAR units and Prox-D sensors), quarterly system diagnostics via the debug ports, and annual calibration verification. The system provides automated health monitoring and alerts operators to any component issues. Most maintenance can be performed by your existing maintenance staff after our training program; complex diagnostics and repairs are handled by our support team remotely or on-site.

The system uses intelligent algorithms to distinguish between genuine hazards and benign detections. Zone-based configuration allows different sensitivity levels for various underground areas—higher sensitivity in high-traffic intersections, adjusted thresholds in working areas. The dual-sensor approach (RF + LiDAR) provides confirmation before intervention: Prox-D sensors detect approaching objects while LiDAR verifies actual obstacles. Operators can also temporarily adjust sensitivity for specific operational scenarios, with all changes logged for compliance review.
The system maintains TRL4-compliant logs recording: all sensor detections, operator alerts, system interventions, machine speed and position, operator ID and authentication events, and system health status. Data is stored redundantly on both the L9 Controller and Concentrator unit, with automatic synchronization to the Wi-Fi Transfer Station. Access is controlled through administrator permissions—typically safety managers, compliance officers, and authorized investigators. Logs can be exported for incident investigation, regulatory audits, and continuous safety improvement analysis.
Yes, when specified with IECEx/ATEX certification. Our explosive-atmosphere-rated systems use intrinsically safe components that cannot produce sparks or heat sufficient to ignite explosive gases or coal dust. This includes specially certified sensors, controllers, and wiring. The system maintains full functionality while meeting the strictest explosive atmosphere requirements for underground coal mines and other hazardous environments. Certification documentation is provided for regulatory compliance.
The Access Controller Unit (ACU) requires operators to present a Dallas or i-Touch fob before the machine can be started. Each fob is uniquely programmed to an individual operator and can be linked to training records and authorization levels. The system verifies the operator is qualified for that specific machine type before allowing ignition. Every operator ID is logged with timestamp data, creating an audit trail of who operated which machine and when. This prevents unauthorized operation and ensures accountability for all machine movements.

We provide comprehensive training programs at three levels: Operator Training (4 hours) covers system operation, alert interpretation, emergency procedures, and daily pre-shift checks; Maintenance Training (8 hours) includes sensor cleaning, diagnostic procedures, component replacement, and troubleshooting; Administrator Training (12 hours) covers system configuration, data management, incident investigation, and advanced diagnostics. All training can be conducted on-site with your equipment. Refresher training and ongoing support are included, with remote assistance available 24/7 for troubleshooting and technical questions.

Created by potrace 1.16, written by Peter Selinger 2001-2019 See More FAQ

Protection Starts With

Understanding Your Operation

Connect with our underground mining safety specialists to explore how HaloGuard can eliminate collision risks, protect your workforce, and ensure ISO 21815 across your underground operations.

  • Free underground traffic flow assessment.
  • Custom collision prevention system design.
  • Fleet integration roadmap.
Office
Request Your Assessment

Email Us

Book A Demo

Request a demonstration and a Mine Safe Global expert will contact you. Simply fill in the form, email us directly, or speak to us on +27 87 711 2080.

Email Us Directly

Global Footprint

We operate across Southern Africa and key regions including North America, United Kingdom  and across Europe.

As one of South Africa’s leading collision avoidance partners, we’ve helped mines boost safety and efficiency through advanced, integrated safety technology.