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April 21, 20117 years ago

Presence detection lighting for bicycle paths

Grid operators and public authorities are looking for ways to reduce the energy consumption of public lighting. One area of research focuses on lighting up bicycle paths only when cyclists are actually using them. Together with EANDIS, the grid operator of the Flemish region in Belgium, Laborelec is testing whether such a system can be implemented using LED luminaires and presence detection sensors.

LED technology enables rapid on/off operation

EANDIS and Laborelec have equipped a test path in order to evaluate the new system’s potential. The setup features LED luminaires that not only switch on instantly but are also much more resistant to on/off operation. Such a setup would not be possible with traditional lighting technologies, since they require several minutes to reach their full luminous flux. In addition, with traditional technologies, continuous on/off operation results in significant wear.

‘We monitor the installation’s performance and compare its results with those of traditional systems,’ states Jean-Michel Deswert.
‘Initial measurements have shown that the presence detection system combined with LED technology consumes 45% less energy
than traditional lighting.’

Testing a wide variety of sensor technologies

‘To enable presence detection, a number of sensors will be placed in between the lights along the path,’ explains Deswert. ‘The goal is to test numerous sensor technologies—including radar, infrared, and camera-based ones—to identify which one is the most accurate and reliable. In addition, we are in the process of determining how many detectors need to be installed.’

Presence detection systems enable savings up to 45% compared to traditional lighting systems.