Adaptive lighting – a guide for retail stores

MAXIMUM COMFORT THROUGH INTELLIGENT LIGHT

Innovative solutions have already been implemented for the furniture store chain in the past, most recently the integration of a radio-based control concept for the branch in Konz. Möbel Martin wanted a future-oriented lighting solution for Ensdorf that would be energy-efficient and ensure a high quality of stay with good visual comfort. Based on the positive results in Konz, the approach of radio-based lighting control was consistently continued.

LIGHT BEAMS THAT MOVE WITH YOU

The adaptive lighting design in Konz is based on radio-controlled sensors that detect the movement of people. The immediate surroundings are illuminated with a maximum of 100%. For the entire sales area, the minimum value is 30% to create a feel-good atmosphere with invitingly lit lines of sight without harsh contrasts or dark areas. Moving light beams are created by grouping the luminaires into luminaire circles that can be detected by different sensors. These overlapping areas allow the light to follow the movement of the person.

CUSTOM-MADE SPECIAL LUMINAIRES

The special luminaires developed for the project can only be swivelled on one axis and do not protrude from the grid ceilings. This prevents glare and creates a calm ceiling appearance. Thanks to the lighting design, there is no need to rehang or realign the luminaires. The products are illuminated with a similar high contrast to that found in a museum, and the traffic areas do not require any lighting. Only in the entrance area was the transition designed to facilitate the adaptation from daylight to artificial light.

REPLICATING DAYLIGHT

The luminaires work with Tunable White and allow precise control of illuminance and color temperature within a range of 2,700 to 5,000 Kelvin. This biodynamic tracking of daylight has a positive effect on customers and employees. The luminaires feature LEDs with very high color rendering for authentic color and surface recognition.

EFFECTIVE RENOVATION IN EXISTING BUILDINGS

The radio-based lighting control system with Casambi allowed flexible commissioning in the existing building, and existing supply lines could be used. Luminaires and sensors are networked in a radio mesh, and control is decentralized in each individual participant in the mesh, meaning that no additional control is necessary for normal operation. Even after completion, it is possible to respond to individual requests at any time.

LIGHTING CONTROL WITH ADDED VALUE

In addition to interfaces to the fire and burglar alarm system, the higher-level lighting control system also provides important data for the company. It provides information on visitor frequency and energy consumption, which can be determined for each lighting circuit. This enables the furniture store to record consumption values and visitor flows.

SUSTAINABLE AND EFFICIENT SYSTEM

The conversion from HIT light sources to highly efficient LED luminaires brings savings of around 40%. With an efficiency of 120 lm/W, the luminaires meet the requirements for possible federal government funding for efficient buildings (BEG). The adaptive lighting concept using sensors delivers a further 30% in energy savings. The special luminaires are resource-efficient, as fewer luminaires are required to achieve the same lighting quality. Thanks to their easy retrofitting, installation and maintenance costs are reduced. The focus on these ecological aspects also contributes to greater customer loyalty. This project stands out in one aspect in particular: with the help of lighting design, energy consumption has been adapted to the user's perspective. Photos: Tom Gundelwein