Hazardous Zone Geofencing
Mobile machines in mining, quarrying, and hazardous industrial sites often operate without real-time zone awareness. Blast areas change, exclusion boundaries shift, and pedestrian workers share space with multi-tonne equipment without automated enforcement. Melqart Systems provides edge-enforced geofencing for every machine: GNSS/RTK positioning, on-board zone evaluation, and direct J1939/CAN machine intervention, speed limiting, hydraulic lockout, and engine stop, without cloud round-trip latency.
Exclusion zones require enforced controls, not alerts alone.
Soft alerts depend on operators seeing, hearing, and responding to a warning in time. In mining and quarrying environments, high ambient noise, limited sightlines, and multi-tonne equipment moving at speed make reaction-dependent safety insufficient. Blast zone coordination is managed by radio and manual checks. Pedestrian exclusion zones are marked with cones that offer no physical enforcement. MSHA, ATEX, and insurer audit requirements demand documented zone compliance that manual systems cannot deliver. The enforcement decision moves on-board: the edge gateway evaluates machine position against zone definitions locally and sends J1939/CAN intervention commands directly. No cloud dependency, no reaction time.
Edge-enforced zone control
Zone evaluation and machine intervention happen on-board: speed limits and hydraulic lockouts execute in under 100ms without a cloud round-trip.
Blast zone coordination
Automatic machine lockout during defined blasting windows: equipment cannot enter or operate within the exclusion radius regardless of operator action.
Machine-to-person separation
Dynamic exclusion zones around pedestrian staging areas, with enforced machine response rather than operator alerts. This removes the human reaction variable from the safety chain.
Compliance audit logging
Timestamped zone entry and exit records for every machine, every shift: documented evidence for MSHA, ATEX, and insurer audit requirements.
Where current approaches fall short
Blast zone coordination depends on radio and manual checks
Blast zones are cleared by radio communication and manual supervisor checks. One missed machine, one radio failure, or one miscommunication can create severe safety exposure. There is no automated enforcement mechanism between a blast order and the machines in the field.
Machine-to-pedestrian incidents are the leading fatality cause
In surface mining and quarrying, machine-to-pedestrian collisions are responsible for a disproportionate share of fatalities. Blind spots on loaders, excavators, and haul trucks can prevent operators from seeing workers on foot. Soft warnings do not replace physical separation enforcement.
Compliance documentation cannot be generated from manual systems
MSHA written safety programs, ATEX zone access records, and insurer audits require documented evidence of zone compliance. Paper logs and radio records are incomplete, inconsistent, and do not satisfy modern regulatory standards.
How Hazardous Zone Geofencing Works
GNSS/RTK positioning feeds an on-board zone engine that evaluates machine position locally, sends J1939/CAN intervention commands within 100ms, and transmits compliance telemetry to the cloud over LTE/4G.
The Deployment Package
A complete hazardous zone geofencing stack: GNSS/RTK positioning, on-board zone intelligence, J1939 machine intervention, and compliance logging, ready for serial deployment across mixed machine fleets.
GNSS/RTK Positioning Module
Centimeter-accurate on-machine positioning using GNSS with RTK correction for surface operations. UWB positioning available for GPS-denied underground environments.
On-Board Zone Intelligence
Edge zone engine evaluates machine position against defined exclusion and speed zones locally. No cloud round-trip. Dynamic risk calculation adjusts zone boundaries based on machine speed and heading.
J1939/CAN Machine Intervention
Direct machine control via J1939 or CAN bus: configurable speed limiting in approach zones, hydraulic lockout in restricted zones, and full engine stop in critical exclusion zones.
Compliance Audit Logging
Timestamped zone entry, dwell, and exit records for every machine across every shift. Structured telemetry delivered to your compliance dashboard for MSHA, ATEX, and insurer audit requirements.
Technical Specifications
Use Cases & Industries
Quarry Blast Zone Management
Automatic machine lockout during defined blasting windows: equipment cannot enter the exclusion radius, regardless of operator action, from blast arm to all-clear signal.
Mining Pedestrian Exclusion
Machine-to-person separation in active dig zones: hard enforcement of pedestrian exclusion areas around walking worker zones with automatic machine slowdown and stop.
Port Terminal Zone Control
Restricting haul trucks and reach stackers from entering crane swing areas and pedestrian access routes, with access logging for port safety audits.
Construction Demolition Perimeters
Speed limiting near pedestrian staging areas and site boundaries during demolition operations, with tamper-proof access logs for contractor compliance reporting.
Oil & Gas Site Access Control
ATEX-compliant zone enforcement near flare stacks, pressurized pipeline areas, and chemical storage zones, with full zone access documentation for regulatory audit.
Underground Mine Safe-Travel Corridors
UWB-based zone control in GPS-denied underground environments: enforcing speed restrictions in pedestrian travel ways and exclusion zones around active mining faces.
Key Outcomes
“From radio-based blast coordination to edge-enforced zone control: every machine, every shift, every zone.”
Move from radio and cones to enforced exclusion zones.
Melqart Systems designs the positioning layer, zone engine, and machine intervention integration, and delivers documented zone compliance from day one of operation.