Western Coalfields Limited engaged SMIPL to modernise its RFID-based access control and weighbridge integration across mining locations — transforming manual and semi-automated dispatch workflows into a fully integrated, centralised, and tamper-proof vehicle-tracking ecosystem that directly addresses coal pilferage and operational throughput.
WCL's coal dispatch was a mix of manual verification, semi-automated weighbridges and disconnected RFID islands. Vehicle entry and exit at each mining location depended on manual checks and data entry. Weighbridge readings were entered by hand. Multiple ID systems — RFID at some gates, paper at others — operated in silos.
For an organisation moving coal at scale, the implications were severe: pilferage risk from unauthorised or duplicate vehicle movements; data-tampering risk from manual weighment entries; operational throughput loss from congestion at check-posts and weighbridges; and audit opacity because there was no end-to-end digital record of a truck's journey from the mine to the exit gate.
WCL needed a fully automated, intelligent control system — one that could authenticate every vehicle at every touchpoint, automate every boom barrier, integrate directly with every weighbridge, and produce a tamper-proof digital audit trail for every single dispatch event.
In a mining dispatch workflow, every manual entry is a point of failure — and every point of failure is an opportunity for pilferage. The brief wasn't automation for its own sake. The brief was revenue protection.
— Project Scope Note · SMIPL Engineering TeamSMIPL delivered a comprehensive RFID-enabled automation ecosystem under a hiring-plus-service model — supplying, installing, integrating and operating the complete stack. The architecture treats every vehicle as a digital asset from the moment it enters a WCL location to the moment it exits, with automated authentication and tamper-proof logging at every touchpoint in between.
Every authorised vehicle is issued an encrypted RFID tag. RFID readers at entry and exit points automatically authenticate the vehicle against the central database. If authenticated, the boom barrier opens automatically. If not, access is denied and the event is logged. Zero manual intervention; zero gate-keeper fatigue; zero opportunity for authentication bypass.
At every exit point, a drop-box system validates the tag before release, ensuring that only authorised, weighed, and cleared vehicles leave the premises. The drop-box architecture prevents unauthorised dispatch — a critical control for revenue protection in coal movement.
Each weighbridge is integrated directly with the RFID and central database layer. When a vehicle arrives at a weighbridge, its RFID tag is automatically read — vehicle identity, load data and timestamp are captured together in one atomic transaction. Manual data entry is eliminated; weighbridge tampering opportunities are sharply reduced; and accuracy of dispatch records improves end-to-end.
A centralised data processing infrastructure — 4 dedicated servers — runs the unified database, real-time validation engine, reporting and analytics, and API integration with WCL's existing dispatch/production systems. Every RFID read, every boom barrier event, every weighbridge transaction and every check-post exit is recorded in one unified audit trail.
At every major check-post, a smart display unit gives the operator real-time information — vehicle identity, authorisation status, flagged alerts, expected routing. Unauthorised or flagged vehicles produce an immediate visible alert. The displays transform check-post operators from manual gate-keepers into supervised exception-handlers.
System integrity depends on precise timing across distributed sites. The deployment includes an NTP time-sync server to keep every RFID reader, drop-box, weighbridge, server and check-post display at exactly the same time. Managed network switches with SFP ensure fibre-backed connectivity between locations.
A custom-developed software platform, deployed on SMIPL's servers, runs the full digital workflow end-to-end:
The system was designed and delivered to meet India's stringent requirements for critical infrastructure technology:
The WCL RFID deployment transformed coal dispatch from a manual-entry, paper-driven operation into a fully automated, tamper-proof digital ecosystem. Every vehicle authenticated. Every weighment captured. Every movement logged. Every exit validated.
Faster vehicle movement at every checkpoint, reduced congestion at weighbridges, lower turnaround time for dispatch — directly translating to more coal moved per hour with less infrastructure.
Elimination of unauthorised vehicle access, reduction in pilferage opportunities, tamper-proof weighment records — a system designed from day one around the economics of coal.
Fully automated data capture with NTP-synchronised timestamps and encrypted tags produces a clean, auditable digital trail — suitable for internal audit, statutory reporting and dispute resolution.
SMIPL's engineering team works directly with procurement, plant and IT leaders to scope, design and deliver mission-critical systems. No call centres. No middle layers.
