Deliver high-power, broadcast-capable stadium lighting with centralized remote control and per-luminaire dimming using PLC so no extra data cabling is needed across long feeders. Provide robust isolation for long runs, precise scene control for match/broadcast/training, and per-fixture fault and energy reporting.
Key Components
- PLC Concentrator / Gateway — injects/receives PLC signals on stadium feeders and links to control room/cloud (Ethernet or cellular).
- Isolator Controller — segments and isolates long high-power feeders so PLC signals remain reliable across stadium zones and provide local maintenance bypass.
- PLC Light Dimmer Switch (addressable) — per luminaire or per small group, supports high-power dimming and status reporting.
- LED Floodlights / High-Mast Luminaires — compatible with PLC dimmer nodes; typically high-wattage drivers with broadcast-friendly dim curves.
- Control Room HMI & Cloud / Mobile App — operator interface for scenes, schedules, analytics, OTA firmware and remote diagnostics.
- Surge Protection & Filters — mast-level SPD and PLC filters near noisy loads (VFDs, lifts) to protect signals and equipment.
Architecture & Wiring (see diagram)
Main Distribution feeds the PLC concentrator and isolator controllers.
The PLC concentrator injects PLC signals on main feeders. For long runs, isolator controllers partition the stadium into segments that preserve PLC signal strength and allow local maintenance bypass.
Each Isolator Controller feeds one or more floodlight banks (north/east/south/west stands, masts). Within each bank, individual luminaires have PLC dimmer nodes connected over the feeder conductors (L/N).
Control Room connects to the concentrator for scheduling, live control, and telemetry. Cloud/App enable remote management and analytics.
Emergency lighting circuits should be on separate non-dimmable feeders and not controlled by PLC dimmers.
Typical Program / Control Logic
Scene Presets: Full Match (100%), Training (80%), Broadcast (95% with flicker control), Warm-up (60%), Night Security (10–20%).
Groupings: Stand Banks, Mast Banks, Emergency Circuits, Perimeter & Flood.
Transition Logic: Smooth ramps for dimming, instant full-on for emergency, priority overrides for broadcast.
Redundancy: Dual concentrator or redundant network link for failover during critical broadcast events.
Fault Handling: Per-luminaire alarms, automatic re-routing of control in isolated sections, and maintenance notifications via App.
