Selected engineering work
Industrial projects, documented in context
Twelve published project areas drawn from the professional engineering experience behind RND Lab, spanning embedded control, high-current power electronics, rail automation, calibration, gas detection, fibre-optic communication, measurement, and operator systems. Some work pre-dates the current company; each case records its application, engineering scope, interfaces, and validation focus.
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High-Current DC Motor Drive for Forklift Applications
A traction and heavy-motion controller designed for demanding DC motor applications, operating up to 150 V DC and 300 A output current.
Engineering scope
The project combines high-current switching, smooth speed control, embedded control logic, and external polarity-reversal relays. Separating the reversal stage from the electronic drive provides a practical forward/reverse architecture for heavy industrial vehicles.
- Up to 150 V DC input and 300 A output
- Controlled acceleration and motor-speed regulation
- External polarity switching for forward and reverse motion
- Technical review and modernisation path for current components
High-Current DC Motor Drive Platform
A configurable 150 V DC, 150 A platform for industrial machinery, automation, custom equipment, and test fixtures.
Engineering scope
Unlike a fixed-function drive, this platform exposes adjustable output from zero to the available supply voltage. External double-pole relays handle polarity reversal, allowing the power stage and application-specific switching logic to be integrated around the target machine.
- Adjustable 0 V to supply-voltage output
- Up to 150 A controlled current capability
- External double-pole direction switching
- Adaptable interface for prototypes and production equipment
Industrial DC Drive Control Platform
An embedded control layer for high-current power systems, built to connect vehicle networks, field signals, diagnostics, and safety logic.
Interfaces and control
The platform supports CAN Bus, J1939, LIN Bus, analogue inputs, digital I/O, and custom protocols. Feedback monitoring and embedded safety functions make it suitable for industrial vehicles, machinery, automation systems, and test equipment.
- CAN Bus, J1939, LIN Bus, and custom protocol support
- Analogue acquisition and digital input/output
- Feedback monitoring and diagnostic functions
- Hardware and firmware modernisation opportunity
80 V / 40 A Industrial H-Bridge Controller
A bidirectional power controller for DC loads, actuators, motors, and industrial motion mechanisms.
Integration focus
The 80 V / 40 A H-bridge combines direct load control with RS485 and CAN communications. This allows the controller to operate as part of automation equipment, diagnostic rigs, or a larger distributed control system while retaining application-specific command and monitoring behaviour.
- Bidirectional control for high-current DC loads
- 80 V operating range and 40 A current capability
- CAN and RS485 system integration
- Suitable for motion, test, and custom automation platforms
Dynamic Rail Wagon Weighing System
An industrial prototype for measuring wagon weight while a train remains in motion at bulk-material and process-industry sites.
Measurement architecture
The system receives two four-wire load-cell channels and provides two 100 Mbit/s Ethernet ports. Its role is to capture field measurements reliably and connect the weighing point to the plant network for processing, monitoring, and integration.
- Dynamic weighing without stopping each wagon
- Two four-wire load-cell input ports
- Two 100 Mbit/s Ethernet network interfaces
- Designed for steel, cement, and bulk-material facilities
Industrial Thyristor & Triac Analyser
A control and analysis platform for triggering, monitoring, and evaluating power semiconductors under practical operating conditions.
Test and validation
The analyser brings switching control, relay-based routing, signal monitoring, and diagnostic feedback into one test workflow. It supports repeatable evaluation of triggering and switching behaviour before a thyristor or triac stage is integrated into a larger power system.
- Controlled triggering and switching evaluation
- Diagnostic feedback and signal observation
- Relay-based test routing
- Practical validation of high-power semiconductor behaviour
Two-Phase 400 V Industrial Vibrator Drive
A dedicated drive for regulating sponge-iron discharge from silo hoppers onto a production conveyor.
Process application
The 400 V two-phase drive controls the vibration mechanism responsible for material release. Stable drive control helps maintain dosing consistency, reduce blockage at the silo outlet, and support continuous material flow in a heavy industrial environment.
- 400 V two-phase vibrator control
- Silo discharge and conveyor-feed regulation
- Support for consistent dosing and anti-blockage operation
- Industrial enclosure and field integration scope
10-Channel Remote Controller
A bidirectional operator-control system developed for overhead cranes and industrial switching applications.
Operator and machine link
Ten command channels, feedback capability, embedded logic, and relay outputs form a complete control path from operator input to machine response. Functional testing verifies command transmission, output switching, and visible feedback for safer, clearer operation.
- Ten bidirectional control channels
- Remote commands with response feedback
- Relay-based output switching and wired integration
- Functional verification for industrial operation
Industrial Rail Access Control System
A distributed local traffic-control platform for coordinating train movement and field signalling inside industrial sites.
Site-wide control
The system handles up to 250 field points and combines embedded logic, relay outputs, local monitoring, enclosure integration, and field communications. Fibre-optic and radio connectivity support distributed operation across factories, steel and cement plants, and material-handling areas.
- Control and monitoring for up to 250 field points
- Local signalling and coordinated rail movement
- Fibre-optic and radio module connectivity
- Field enclosure integration and industrial validation
Industrial Communication Solution
A multi-protocol control platform for distributed automation, field communication, local monitoring, and relay-based switching.
Communication architecture
RS485, Modbus RTU, CAN Bus, J1939, LIN Bus, fibre-optic links, and radio connectivity provide flexible field integration. Five independent control cores support high-speed operation, while a physical watchdog adds a dedicated reliability layer.
- RS485, Modbus RTU, CAN, J1939, and LIN
- Fibre-optic and radio field connectivity
- Five independent control cores
- Physical watchdog, local monitoring, and relay outputs
Gas Detector Calibration & Instrument Verification
A structured calibration and verification workflow for portable gas detectors and industrial measurement instruments used in safety-critical environments.
Calibration workflow
The project area covers controlled reference-gas application, response checks, alarm and sensor verification, adjustment support, and clear recording of test results. The objective is a repeatable bench process that connects the instrument, gas source, and test equipment without losing traceability.
- Reference-gas connection and controlled exposure
- Sensor response, alarm, and indication checks
- Adjustment and post-calibration verification
- Test records for maintenance and technical review
Industrial Fibre-Optic Communication Projects
Fibre-optic communication integration for distributed industrial controls where electrical isolation, distance, and resistance to electromagnetic interference are important.
Network integration
This project area covers the connection of controllers, field cabinets, automation equipment, and monitoring systems through optical links. Engineering work includes interface selection, link architecture, cabinet integration, diagnostics, and end-to-end communication verification.
- Optical links between distributed control locations
- Electrical isolation across industrial communication paths
- Interface, enclosure, and cable-routing integration
- Link diagnostics and end-to-end functional testing
From legacy hardware to a current solution
Reproduce, Modernise, or Adapt an Industrial Platform
Use documented engineering experience as a starting point for updated components, revised interfaces, new firmware, and application-specific validation.