HIGHLight
DURATION:
01/2019
—
12/2022
TOTAL PROJECT DURATION:
4 Years
Analog Digital Circuit Design, Foto: JOANNEUM RESEARCH
The Project
Based on a colour-coded wristband and visible light sensing, the HIGH-Light project enables gesture recognition using light, which in turn makes it possible to control the lighting situation in a room (colour temperature, brightness).
Research groups
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Customer
Bundesministerium für Klimaschutz, Umwelt, Energie, Mobilität, Innovation und Technologie
Project partners
Project details
The HIGH-Light project was concerned with researching the fundamentals for realising high-resolution gesture control (wrist rotation) on the basis of a light source (lighting fixture).
In this project, approaches were developed which, based on the innovative research fields of visible light communication (VLC) and visible light sensing (VLS), are characterised by low complexity in design and the electronic components used.
The selected concepts can be divided into two main categories, namely an active light-emitting, LED-based wristband and two purely reflection-based wristbands. In the active LED-based case, the wristband uses the LEDs to emit a modulated data stream which, after demodulation, allows conclusions to be drawn about the current orientation of the wrist.
The reflective wristbands are based on the evaluation of the coded reflection of the light emitted by the lighting fixture on the wristband, a technology also known as "backscattered visible light sensing". In simple terms, the bracelet changes the colour spectrum or intensity of the light emitted (modulated) by the lighting fixture depending on the orientation of the wrist.
This altered light is in turn detected by one or more receivers and allows conclusions to be drawn about the current alignment (angle) of the wrist based on the differently modulated received signals.
The solutions and algorithms developed are continuously evaluated in terms of their complexity and practical applicability. Following the three different concepts, customised wristbands will be designed which, when worn on a person's wrist, will be used to sensitively control the brightness and colour temperature of a lighting fixture. The different approaches are to be visualised, evaluated and assessed in "proof of principle" laboratory samples.
The use of the "Proof of Principle" laboratory samples created in the course of the project in a real laboratory environment as a living lab is intended to make a significant contribution to demonstrating the possibilities of gesture-based lighting control.
