Energy Efficiency Renovation Solution-Dorbas

Implemented Functions

Office Spaces · Public Areas

Office Spaces · Public Areas

Luminaire Upgrade: Existing dimmable fluorescent lamps are upgraded to high-efficiency LED luminaires for improved illuminance and reduced power consumption.
Occupancy Sensing Control: Lights turn on upon human presence and turn off with delay after people leave in meeting rooms, pantries and corridors.
Constant Illuminance Control: Illuminance sensing linkage for window-side areas; lights automatically dim when natural light is sufficient.
Time-Scheduled Control: Automatic operation for multiple periods including working hours, overtime and holidays.
Panel Scene Control: One-click master on/off and scene switching via smart panels in office areas.
Lobbies · Entrance Halls

Lobbies · Entrance Halls

Scene Control: Automatic switching of lighting atmosphere for multiple periods including daytime, dusk, night and late night.
Smart Panel: One-click master on/off and switching between welcome and on-duty scenarios at the front desk.
Centralized Management: Lobby lighting and elevator lobby lighting are uniformly connected to the main control center.
Illuminance Linkage: Automatic compensation of lobby lighting brightness with changes in natural light.
Emergency Linkage: Emergency lighting forced cut-off triggered by fire signals to ensure personnel evacuation.
Underground Garage · Parking Lot

Underground Garage · Parking Lot

Occupancy Sensing Control: Vehicle and human detection for driveways and parking bays; lights activate upon presence and turn off with delay when the area is vacant.
Circuit Grouping: Lighting circuits controlled by zones to enable 1/3, 2/3 and full-load energy-saving modes.
Always-on & Inspection Lighting: Retain basic lighting circuits to balance safety and energy conservation.
Time-Scheduled Control: Automatic adjustment of lighting strategies for peak hours, nighttime and early morning.
Centralized Monitoring: Garage lighting status integrated into the platform with real-time fault alerts.
Mechanical & Electrical Equipment · Air Conditioning Room

Mechanical & Electrical Equipment · Air Conditioning Room

Building Automation Retrofit: Air conditioning units and fresh air units are connected to DDC controllers for on-demand operation.
Sub-metering: Separate metering of electricity, water, cooling and heat, enabling clear and traceable energy bills.
Schedule Control: Automatic start and stop of equipment according to work schedules to avoid idling during unoccupied periods.
Environmental Linkage: Temperature, humidity and CO₂ sensors interlock air conditioning and fresh air systems to ensure comfort.
Fault Early Warning: Real-time monitoring of equipment operating status with proactive alarms for abnormalities.
Facade · Building Landscape Lighting

Facade · Building Landscape Lighting

Astronomical Clock Control: Automatically calculates sunrise and sunset based on latitude and longitude for scheduled on/off of landscape lighting.
Scene Lighting: Multi-scene lighting programming for weekdays, holidays and major events.
Energy-saving Operation: Automatically dims brightness or shuts down non-essential circuits during late-night hours.
Luminaire Status Monitoring: Real-time reporting of single lamp faults to cut maintenance costs.
Centralized Management: Facade landscape lighting and indoor lighting are managed uniformly on the platform.

Solution Architecture

The system adopts a hierarchical distributed architecture, consisting of three major modules: platform management layer, network transmission layer and field device layer. It is compatible with mainstream protocols such as KNX, BACnet, DALI and Modbus, and fully connects various subsystems of the renovated building including lighting, air conditioning, fresh air, fire protection and power distribution. It eliminates equipment silos to realize unified monitoring, intelligent linkage and data intercommunication of devices across all scenarios.

1

Platform Management Layer

(Centralized Monitoring · Scene Distribution · Energy Consumption Decision-making)

Unified management by operation & maintenance center and property management department; the intelligent lighting platform, building automation platform and energy consumption monitoring platform are displayed on one screen. One-click distribution of scenarios for offices, lobbies, parking garages and landscape lighting, with real-time visualization of building status.

1

Network Transmission Layer

(TCP/IP · KNX · BACnet · DALI)

Reliable transmission via building LAN and floor network switches; supports multi-protocol access including RS485, DALI, BACnet and Modbus. It collects device status and energy consumption data on the uplink, and issues start/stop, dimming and scene commands on the downlink for two-way connectivity.

1

Field Device Layer

(Controllers · Panels · Sensors · Actuators)

Control executed by smart panels, dimming modules and DDC controllers; air conditioning units and fresh air units are connected to building automation; smart electric meters, water meters and cold/heat meters measure energy consumption. Illuminance, occupancy, temperature & humidity and CO₂ sensors perceive the environment for on-demand scheduling.

1

Covered Systems: Intelligent Lighting Retrofit · Energy Consumption Monitoring · Building Automation · Environmental Monitoring · Scene Control · Centralized Management. The six subsystems operate collaboratively on a single platform.

Core Value

Energy Saving & Consumption Reduction

High-efficiency LED lighting, occupancy sensing and constant illuminance control, on-demand air conditioning operation, and closed-loop optimization of energy consumption data jointly reduce consumption across multiple links and cut building operational energy use in the long run.
Rapid Payback

The renovation mainly focuses on upgrading lighting and control systems, featuring a short construction cycle and quick results. Savings from reduced energy consumption enable rapid payback of renovation investment.
Low-impact Renovation

No modification to main structures or finished decoration surfaces. Equipment replacement and system integration are implemented in phased construction to minimize disruptions to normal office operations.
Long-term Operation & Maintenance

Unified visualization on the platform, remote equipment monitoring and proactive fault warning, together with continuous optimization of energy consumption data, make renovation effects measurable, reproducible and sustainable.

Project Cases