The Data Matrix Positioning Systems (PCV and PXV) from Pepperl+Fuchs represent a benchmark in industrial absolute positioning. Combining advanced 2-D camera-based read heads with adhesive Data Matrix code tapes, these systems provide a maintenance-free, non-contact solution for tracking the movement of Automated Guided Vehicles (AGVs), cranes, monorail systems, and elevators over exceptionally long distances.

Absolute Accuracy Over 100 Kilometers

Unlike incremental encoders that require homing after power loss, the PCV and PXV systems provide immediate absolute position values as soon as the read head is powered on. The system uses a continuous code tape that can be tailored to any length up to 100 km. This makes it suitable for the world’s largest logistics hubs and complex, curved industrial routes where traditional positioning methods fail or become prohibitively expensive.

PXV: The "eXtreme" Evolution

Building on the success of the PCV, the PXV (Position eXtreme Vision) system features a significantly larger reading window and higher depth of field. The most critical innovation is its multi-code redundancy. The PXV read head scans multiple Data Matrix codes simultaneously; if several codes are obscured by dirt, grease, or physical scratches, the system continues to output a 100% accurate position value based on the remaining visible codes. This ensures zero-downtime operation in the harshest industrial environments.

Key Benefits for Logistics and AGVs

• Contact-free Operation: No mechanical wear or friction, leading to a long service life and high speeds (up to 15 m/s).
• Redundant Reliability: High resistance to contamination and environmental damage thanks to the large reading window and multiple code evaluation.
• Flexible Installation: Adhesive code tape can follow tight curves and slopes. The wide reading window allows for large mounting tolerances between the read head and the tape.
• Safe Positioning: PXV/PGV variants support PROFIsafe, enabling functional safety up to SIL 3/PL e with a single read head.
• Smart Configuration: Easily parameterized via the Pepperl+Fuchs Vision Configurator software or directly through the control system protocol.

Typical Applications

• Automated Guided Vehicles (AGVs): Precise navigation and positioning on warehouse floors.
• Overhead Conveyors: Position tracking for monorail systems in automotive assembly lines.
• Stacker Cranes: Vertical and horizontal positioning in automated storage and retrieval systems (ASRS).
• Elevator Systems: High-speed absolute height measurement and floor leveling.