System Components
- PLC Concentrator / Gateway — injects and receives PLC signals on the building power lines; connects to Cloud/App via Ethernet (or cellular) for remote control and analytics.
- PLC Loop Controller(s) — interface that segments the distribution into power-line loops; provides loop-level circuit switching, grouping, and data aggregation.
- PLC Light Dimmer Switch (per fixture or per group) — addressable dimming node on the powerline for each LED fixture or luminaire group.
- LED Fixtures — energy-efficient luminaires compatible with PLC dimmer nodes.
- Microwave Occupancy/Presence Sensors — mounted on ceiling or fixtures; perform local on/off/dim behavior and report events to PLC nodes.
- Cloud Platform & Mobile App — scheduling, remote override, analytics, alarms, firmware updates, tenant/role management.
Architecture & Wiring (as shown in diagram)
The Main Distribution feeds the PLC Concentrator/Gateway.
The Concentrator injects PLC signals onto the building power lines; those signals travel downstream to each PLC Loop Controller.
Each Loop Controller manages a dedicated power loop feeding multiple fixtures. PLC dimmer switches and fixtures connect to this loop (use existing AC wiring).
Microwave sensors are physically near fixtures and communicate via the same powerline (or via short local wiring to their dimmer node) to report occupancy and trigger scenes.
The Concentrator links to the Cloud/App for scheduling, monitoring and remote control.
Typical Working Modes
- Auto (Sensor-driven): Microwave sensors perform presence-based control: ON at full/scene brightness when presence detected; dim or OFF when area unoccupied after timeout.
- Scheduled / Scene Mode: Central schedules or scene presets (training, match, cleaning) are pushed from the Cloud/App to the concentrator and applied to individual nodes or groups.
- Manual / Remote Override: Facility manager can adjust brightness or manually switch groups via App; overrides can be local or prioritized.
- Fault & Health Reporting: Dimmer or driver anomalies, communication failures, or abnormal power consumption are reported to Cloud notifications and visible in App.
- Power-saving Modes: Vacancy dimming, gradual ramp-down for idle periods, and dynamic dimming during low-usage hours.
Addressing, Grouping & Scalability
Assign unique PLC addresses to each dimmer node and sensor. Group nodes by area (court A, court B, corridors, seating).One concentrator can typically handle multiple loop controllers; scale by adding controllers per additional loop or feeder.
Use scenes to combine dimming + sensor policies (e.g., Training = 80% on courts, 40% corridors).
