THE CHALLENGEMoving Dangerous Goods Leaves No Room for Blind Spots
Hauling fuel, chemicals, or compressed gas is not ordinary fleet work. A leak, an overpressure event, or a rollover can put people and the environment at risk in minutes, and regulators expect you to prove the load stayed within its limits and on its approved route the whole way. A plain GPS dot on a map does not tell you the tank is venting or that the driver has drifted into a restricted zone. Operators need a system that senses the cargo, watches the route corridor, catches an incident as it happens, and gets the right information to responders fast, while producing the compliance record automatically.
Built within the Telematics and GPS Tracking ecosystem, and frequently paired with Commercial Vehicle Tracking.
WHAT'S INCLUDED
Sensors on the Tank, Intelligence on the Device
Tanker Tracker and IMU Core
The on-vehicle unit is built around a GNSS module with NavIC and GPS, a Quectel or SIMCom LTE modem, and a six-axis IMU. It logs position, motion, and sensor data on one time base and evaluates geofence and incident rules on board so it keeps working through cellular gaps.
Leak and Gas Detection
Catalytic or electrochemical gas sensors mount at the manhole and likely leak points for volatile loads, and pressure and level behavior are fused for liquids. The controller separates a genuine leak from a normal delivery so alerts are trustworthy.
Temperature and Pressure Sensing
Calibrated temperature probes and a pressure transducer keep the cargo inside its safe envelope. Alerts fire on excursions and on a pressure rise that could indicate venting or a thermal event, and the full trace is kept for the compliance record.
Route Corridor Geofencing
The approved route is modelled as a corridor with timing windows, plus restricted and prohibited zones. Leaving the corridor, entering a no-go area, or stopping where it is not allowed raises an alert, evaluated on the device so a link drop does not hide a deviation.
Rollover and Incident Detection
IMU-based roll angle, lateral acceleration, and impact detection are tuned to a high center-of-gravity tanker with a moving liquid load. A rollover or hard impact triggers an immediate emergency event.
Emergency Alerting and Compliance Reporting
Priority alerts carry location, cargo identity, and the latest sensor snapshot to the control room and responders. Trip and event records document route, deviations, sensor traces, and incidents, and export in the formats auditors expect.
CARGO SENSING
Sensors Matched to the Hazard
No single sensor fits every load. The sensing set is selected per cargo class and the signals route into a controller that fuses them, so the alert reflects what is actually happening on the tank rather than one noisy reading.
Volatile and Gaseous Loads
Gas sensors at the manhole and fittings, pressure transducer on the tank, and venting detection. Intrinsically safe sensor and wiring choices appropriate to the hazard zone.
Liquid Chemical and Fuel
Level and pressure trend analysis to flag a drop that is not a delivery, plus temperature probes where the product has a thermal limit, and optional bund moisture detection.
Motion and Stability
Six-axis IMU for roll, lateral acceleration, harsh braking, and impact, tuned to the tanker so a partly filled tank surging does not look like a crash.
ARCHITECTURE
On-Board Decisions, Backed by the Backend
On the Vehicle
An STM32-class controller runs sensor fusion, corridor and zone rules, and incident detection under FreeRTOS. Critical decisions happen on board so a leak or rollover alerts even with no signal, then buffers and forwards when the link returns.
Transport
LTE over a Quectel or SIMCom modem carries telemetry and priority alerts to the backend over MQTT, with store-and-forward so nothing is lost across dead zones common on long-haul corridors.
Control Room and Records
A time-series store holds position and sensor traces. The control room sees live status and alerts, responders get priority notifications with cargo context, and compliance reports are generated from the stored record.
Corridor and zone enforcement uses the same engine as the geofencing solutions, and the platform builds on the wider fleet management stack.
STANDARDS AND COMPLIANCE
Built Around Dangerous-Goods Rules
AIS 140 Tracking
The tracking core follows AIS 140 with NavIC support and a panic input, so the unit aligns with Indian commercial-vehicle requirements while carrying the hazmat sensing on top.
Hazard-Zone Sensor Practices
Intrinsically safe sensor options and wiring practices are suited to the cargo and zone, and the tank-side install is scoped per tanker type so it passes inspection.
Auditable Trip Records
Route assignment, deviations, sensor traces, incidents, and consignment identity are recorded and exportable, so the compliance evidence is produced by the system rather than reconstructed later.
FAQ
Common Questions
How is a leak on a tanker detected?
It depends on the cargo. For volatile and gaseous loads, catalytic or electrochemical gas sensors sit near likely leak points and the manhole, watching for a concentration rise above baseline. For liquid loads, pressure trend, level drop that does not match a delivery event, and where fitted a hull or bund moisture sensor are combined. The controller fuses these so a real leak alerts immediately while a normal delivery does not.
What does route corridor geofencing actually enforce?
Dangerous-goods movements are often restricted to approved corridors and timing windows. The permitted route is defined as a corridor geofence rather than a single line, so minor lane variation is fine but leaving the corridor, entering a restricted zone, or stopping in a prohibited area raises an alert. The device evaluates this on board so a deviation is caught even if the cellular link drops.
How does rollover and incident detection work?
A six-axis IMU on the device reads roll angle, lateral acceleration, and the rate of change. A tanker with a high center of gravity and a liquid load behaves differently from a rigid box, so thresholds are tuned to the vehicle. A detected rollover or hard-impact event fires an immediate emergency alert with location, cargo, and the last sensor readings.
What temperature and pressure sensing is included?
Many dangerous goods have to stay within a temperature and pressure envelope. Calibrated temperature probes and a pressure transducer on the tank log the readings on the same time base as position, and alert on excursions or on a pressure rise that could signal a venting or thermal event. The full trace is available for the compliance record.
What happens in an emergency?
On a leak, rollover, hard impact, or panic-button press, the device sends a priority alert with GPS location, cargo identity, and the latest sensor snapshot to the control room and to any configured responder endpoints. Because cargo class and emergency contact data travel with the alert, the responder gets what they need to act without looking it up separately.
Does this cover dangerous-goods compliance reporting?
Yes. Trip and event records document the assigned route, any deviations, sensor traces for temperature and pressure, leak and incident events, and driver and consignment identity. These export in the formats your regulator or auditor expects, so the compliance report comes out of the system rather than being assembled by hand.
Can this run on existing tankers without major rework?
Mostly, yes. The core tracker and IMU install like any telematics unit. Gas, pressure, and temperature sensors are added at the tank during a scheduled service, with intrinsically safe sensor options and wiring practices appropriate for the hazard zone. The install is scoped per tanker type during the pilot so the rollout is predictable.
Ready to Track Your Hazmat Fleet Safely?
Share your cargo classes, your routes, and the rules you have to meet to get the sensing, the corridor and incident logic, and the compliance reporting scoped around your operation.
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