Advanced Runway Incursion Prevention Sensor & Stop Bar Control System- Protecting Lives, Boosting Capacity, Reducing Costs.
Runway incursions remain one of the most serious risks in airport surface movement – especially during low visibility procedures (LVP) and high-traffic operations.
The CDU Crossing Detection Unit from Airfield Lighting Systems delivers a modern, reliable, and cost-effective solution for runway incursion prevention. This advanced sensor system detects aircraft and vehicles crossing predefined safety lines at taxiways and runway entrances using embedded inductive loops, instantly triggering automatic stop-bar light activation/deactivation for immediate protection.
Real-time monitoring of stop-bar lamp status, combined with runway incursion alarms compatible with A-SMGCS highest protection levels, enhances safety during low visibility procedures (LVP) and high-traffic operations. Featuring ultra-low power consumption (15W), IP67 protection, redundant architecture, interference-immune fiber optic communication, and minimal maintenance, the CDU boosts airport capacity, reduces costs, and safeguards lives at critical holding points—fully compliant with the latest international standards.
What the CDU System Does
The CDU is an intelligent sensor system that:
- Detects aircraft and vehicles crossing predefined safety lines on taxiways and runway entrances
- Triggers automatic stop-bar light activation / deactivation
- Monitors stop-bar lamp status in real time
- Generates runway incursion alarms compatible with A-SMGCS highest protection levels
- Logs all events for analysis and auditing
Provides immediate, dependable protection at runway holding points and critical crossing locations.
How It Works
- Detection — inductive loop wires embedded in the pavement sense metal mass of aircraft / vehicles
- Processing — each CDU independently evaluates the signal and decides in milliseconds
- Communication — high-speed, interference-immune optical fiber link
- Power & data — single combined cable (power + fibre) for simplified installation
- Control — directly commands stop-bar lights (on/off)
- Monitoring — continuously verifies lamp integrity and reports failures
- Recording — detailed event log stored in the central substation rack.
Key Technical Features
- Very low maintenance — single calibration at installation
- IP67 protection + extended temperature range
- Ultra-low power — only 15 W per unit
- Redundant & fault-tolerant architecture
- High-speed optical fiber communication — immune to electromagnetic interference
- Fully customized software — adapts to your specific taxiway layout, procedures and operational needs
- Separate power supply — designed for maximum safety and independence
