Mine Safe Global Collision avoidance systems for mining

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Underground Collision Avoidance Systems (CAS)

Mine Safe Global provides advanced underground collision avoidance systems (CAS) engineered for the hardest environment in mining: confined tunnels, total darkness, heavy dust, and zero GPS coverage. HaloGuard delivers 360-degree awareness with Level 9 automated intervention on underground machinery, while HaloTag makes every worker detectable and locatable through an integrated cap lamp. In-cab fatigue monitoring addresses the human factors behind underground collisions before they become incidents. Mine Safe Global is South Africa's leading underground collision prevention specialist, serving mining operations worldwide.

What Is an Underground Collision Avoidance System (CAS)?

An underground collision avoidance system is a safety technology that detects people, machines, and restricted zones in the confined, low-visibility conditions of an underground mine, and acts to prevent contact between them. Because satellite positioning cannot penetrate rock, underground CAS relies on proximity detection between machine-mounted systems and wearable personnel tags. Detection does not depend on line of sight, light, or camera visibility, which is what makes it effective in dust, darkness, and around blind corners.

Mine Safe Global’s underground CAS combines complementary technologies into one system. HaloGuard gives underground machinery 360-degree awareness of its surroundings. Level 9 automated intervention slows or stops the machine when a collision is imminent, whether or not the operator responds. HaloTag turns each worker’s cap lamp into a wearable safety device, and in-cab fatigue monitoring detects the drowsiness and distraction that cause collisions in the first place. The result is continuous protection that follows people and machines through every level and section.

How Underground Collision Avoidance Works

Detection, Warning, and Level 9 Automated Intervention

Detection comes first. HaloGuard gives each protected machine 360-degree awareness of tagged people and hazards around it, through dust, darkness, and blind intersections. Every underground worker is visible to the system through the HaloTag integrated into their cap lamp.

Warnings escalate as distance closes. When a worker or hazard enters a machine’s warning zone, the operator is alerted, giving both sides time to react before the situation becomes critical.

Level 9 automated intervention is the final layer. When an imminent collision risk is detected, the system does not wait for a human response. It intervenes on the machine directly, slowing or stopping it before contact can occur, even when the operator cannot see the danger. Level 9 is the highest standard of collision prevention defined by the EMESRT framework, and Mine Safe Global delivers it underground.
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Why Underground Mines Need Collision Avoidance Systems

Underground mining concentrates every collision risk factor into one environment. Tunnels are narrow, intersections are blind, and machines share confined roadways with workers on foot. Darkness and dust defeat human vision and camera-based systems alike. Engine and ventilation noise masks the sound of an approaching LHD. And long shifts in hot, monotonous conditions produce operator fatigue, one of the leading human factors behind underground vehicle incidents. Traditional controls such as lights, hooters, and traffic management reduce risk but cannot eliminate it, because they all depend on someone seeing, hearing, or reacting to the danger in time.
Underground collision avoidance systems close that gap by detecting what people cannot see and acting faster than people can react. HaloGuard’s 360-degree detection works through dust, around corners, and in total darkness, recognising every HaloTag-equipped worker near the machine, with Level 9 intervention when warnings are not enough. In South Africa, the Mine Health and Safety Act requires mines to manage trackless mobile machinery collision risk, with automated means where warnings alone are not sufficient. Level 9 underground CAS is how leading operations meet that requirement, and reduce vehicle-pedestrian incidents to near zero.
See how Mine Safe Global compares to other leading CAS providers.

Which Underground Collision Avoidance System Is Right for Your Operation?

Four technologies, one integrated system. HaloGuard protects the machine’s surroundings, Level 9 intervention stops the machine, HaloTag protects the person, and fatigue monitoring protects against the human factors that cause collisions.

HaloGuard Underground Collision Prevention System

Next-generation 360-degree awareness and automated intervention engineered for confined spaces. HaloGuard detects people and hazards all around the machine, in dust, darkness, and blind intersections. LINK: HaloGuard Underground Collision Prevention

HaloTag Underground Personnel Safety Device

Integrated cap lamp and wearable tag ensuring underground personnel are detectable and locatable. Every worker is visible to every protected machine nearby, with no extra device to carry and no line of sight required.

CxD Level 9 Collision Prevention Technology automated machine intervention system

Level 9 Collision Avoidance System (CAS)

Fully automated machine intervention for underground trackless mobile machinery. When a collision is imminent, the system slows or stops the machine directly, whether or not the operator responds. ISO 21815 compliant.

Advanced Fatigue Monitoring System

In-cab sensor and camera monitoring that detects operator drowsiness and distraction in real time, with audible alerts and seat vibration. Night vision capability makes it fully effective in underground conditions.

Trusted by Leading Mining Operations Worldwide

PPC-cement-mine-safe-global-CAS-collision-prevention-client
Imerys — Mine Safe Global CAS collision prevention system industrial mining client
SBPM — Mine Safe Global Level 9 CAS collision prevention system client
Continental Resources — Mine Safe Global collision avoidance system client
Sibanye-Stillwater — Mine Safe Global Level 9 CAS collision prevention system mining client
Sebilo Resources — Mine Safe Global collision avoidance system mining client
Provest Group — Mine Safe Global Level 9 CAS collision avoidance system client
Sephaku Cement — Mine Safe Global Level 9 CAS collision prevention system client
Glencore — Mine Safe Global Level 9 CAS collision prevention system global mining client
Trollope Mining Services — Mine Safe Global Level 9 CAS collision prevention client
Mokala Manganese Mine — Mine Safe Global collision avoidance system underground mining client
Samancor — Mine Safe Global Level 9 CAS collision prevention system mining client
Zizwe — Mine Safe Global Level 9 collision avoidance system mining client
Tharisa — Mine Safe Global Level 9 CAS collision prevention system platinum chrome mining client
ASB Minerals — Mine Safe Global Level 9 CAS collision prevention system mining client
Scribante Mining Infrastructure and Construction — Mine Safe Global CAS collision prevention client
Sephaku Holdings — Mine Safe Global collision avoidance system mining client

Underground Compliance & Certification

Mine Safe Global underground solutions meet the regulatory and technical standards required for trackless mobile machinery in underground mining environments.

ISO 21815 compliant — Mine Safe Global collision avoidance and machine control interface certification ISO 21815-Compliant

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

Chief Inspector of Explosives compliance — Mine Safe Global CAS systems certified for operation in explosive zones Chief Inspector of Explosives

Our technology complies with the standards set by the Chief Inspector of Explosives, meeting strict regulatory requirements for safe operation around explosive zones.

ICASA approved — Mine Safe Global collision prevention systems legally certified for South African wireless operation ICASA Approved

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

EMI and EMC compliant — Mine Safe Global CAS systems meet electromagnetic interference and compatibility standards EMI & EMC Compliant

Confirms that collision avoidance systems meet all relevant electromagnetic interference and compatibility standards.

MOSH CPS Blueprint aligned — Mine Safe Global collision prevention system design and implementation standards MOSH CPS Blueprint Alignment

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

EMESRT compliant — Mine Safe Global CAS meets Earth Moving Equipment Safety Round Table requirements for mining EMESRT Compliance

Complies with Earth Moving Equipment Safety Round Table (EMESRT) requirements for safe mining operations.

IP66 certified — Mine Safe Global CAS hardware tested for dust and water ingress protection in mining environments IP Certified

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

ISERT certified — Mine Safe Global collision prevention systems meet safety reliability and performance standards ISERT Certified

Our solutions are certified through ISERT, confirming adherence to strict safety, reliability, and performance requirements across mining.

MTEx certified — Mine Safe Global CAS systems approved for operation in explosive and hazardous mining areas MTEx Certified

Our systems are MTEx certified, ensuring explosion-prevention compliance for safe operation in hazardous areas.

Mineral Council of South Africa — Mine Safe Global collision avoidance systems endorsed by the South African mining industry body Mineral Council of South Africa

The Mineral Council of South Africa supports, promotes, and advocates for the South African mining industry.

Mine Health and Safety Act compliant — Mine Safe Global CAS systems enable MHSA Act 29 of 1996 compliance Mine Health & Safety Act

Enables our customers to comply with the South African Mine Health and Safety Act (Act 29 of 1996).

TRL 4 LDV Surface Certification — Mine Safe Global Level 9 CAS independently verified by the University of Pretoria TRL 4 LDV Surface Certification

Independently verified by the University of Pretoria, this TRL 4 certification confirms our fire-tested LDV safety systems are technically validated and Level 9 ready.

Which Underground Collision Avoidance System Is Right for Your Operation?

Not sure whether your operation needs HaloGuard awareness, Level 9 intervention, or both? Our specialists will assess your sections, fleet, and interaction risks, and recommend the right underground protection, at no cost.
  • Purpose-built for underground: dust, darkness, and confined spaces
  • 360-degree detection with Level 9 automated intervention
  • HaloTag integrates into the cap lamp workers already carry
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Frequently Asked Questions

What is an underground collision avoidance system?
Created by potrace 1.16, written by Peter Selinger 2001-2019 Created by potrace 1.16, written by Peter Selinger 2001-2019
An underground collision avoidance system is a safety technology that detects people, machines, and restricted zones in underground mines and acts to prevent contact between them. Mine Safe Global’s system combines HaloGuard 360-degree awareness, Level 9 automated intervention, HaloTag personnel devices, and in-cab fatigue monitoring into one integrated solution.
Satellite positioning cannot penetrate rock, so underground CAS does not use GPS. HaloGuard detects HaloTag-equipped workers and hazards directly, using proximity detection that works through dust, in darkness, and around corners, because it does not rely on line of sight.
Surface systems combine proximity detection with GNSS positioning in open-sky environments. Underground, GPS is unavailable and conditions are confined and dark, so protection is delivered by HaloGuard’s 360-degree detection with HaloTag personnel devices, backed by the same Level 9 automated intervention standard used on surface. Mine Safe Global provides both, so mixed operations run one protection standard across the whole mine.
HaloGuard is Mine Safe Global’s underground collision prevention system. It gives underground machinery next-generation 360-degree awareness of the people and hazards around it, with automated intervention when a collision risk is detected. It is engineered specifically for confined spaces, low visibility, and high-interaction underground environments.
The HaloTag is an integrated cap lamp and wearable tag that ensures underground personnel are detectable and locatable. Every protected machine recognises nearby HaloTag-equipped workers, and the tag helps locate personnel in an emergency. Because it is built into the cap lamp, workers carry no extra device.
Yes. When an imminent collision risk is detected, Level 9 automated intervention slows or stops the machine directly, whether or not the operator responds. Level 9 is the highest standard of collision prevention in the EMESRT framework, and Mine Safe Global delivers it on underground trackless mobile machinery.
A large share of vehicle incidents start with a drowsy or distracted operator. The Advanced Fatigue Monitoring System uses an in-cab sensor and camera unit to detect eye closure and distraction in real time, alerting the operator with audible warnings and seat vibration. Night vision capability makes it fully effective in dark underground conditions, addressing the human factors that collision detection alone cannot.
Any trackless mobile machinery that shares roadways with people or other machines: LHDs, underground trucks, drill rigs, bolters, personnel carriers, and utility vehicles. A section-by- section risk assessment determines deployment priority.
South African law requires mines to assess and manage the risk of collisions involving trackless mobile machinery, including automated means where warnings alone are not sufficient. This makes Level 9 capability a compliance consideration for underground TMM fleets.
Yes. Detection is unaffected by dust, darkness, water spray, or noise. This is a key advantage over camera-based detection systems, which degrade in exactly the conditions where underground collisions happen.
The HaloTag keeps every worker locatable as well as detectable. In an emergency, the system helps response teams establish where personnel are underground, turning a search into a directed response. For surface operations, see our Missing Person Locator System.

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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.

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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.