Spie and Oledcomm deploy LiFi technology in a high school in the Centre-Val de Loire region
Image credit to Oldecomm
Spie ICS, a digital services subsidiary of the SPIE Group, an independent European leader in multi-technical services in the fields of energy and communications, and the French start-up Oledcomm, a world leader in Li-Fi technology, have been selected by the Centre-Val de Loire region to set up, within a pilot high school, LiFi technology permitting students to connect to the Internet using light. More secure and more environmentally friendly, Li-Fi is a reliable and promising alternative to Wi-Fi.
SPIE ICS is one of the French leaders in IT Services. The subsidiary’s mission is to provide a complete range of services (consulting-engineering, facilities management and managed/cloud services) to meet the IT architecture challenges now facing companies. SPIE Communications works in the following sectors: Unified Communications and Collaboration, IP Infrastructures, Security, Data Centers and Smart Buildings.
Wishing to preserve equal access to digital technology for young people in rural areas, the Centre-Val de Loire Region wished to offer an innovative experiment in a first establishment, the Bernard Palissy high school in Gien, to deploy LiFi technology in a classroom. It chose the integrator SPIE ICS and its partner Oledcomm, a "made in France" supplier of LiFi technology, to adapt the equipment of the two pilot establishments and make them compatible with this alternative mode of communication.
"Very easy to use, Li-FI technology is superimposed on already existing equipment. Our mission was to adapt to the IT infrastructure and terminals to make the use of LiFi possible. This project immediately attracted the support of 'all of the establishment's teams ", explains Sébastien Lascombe, a business engineer at SPIE ICS, in charge of the project.
Image credit to Oldecomm
What is Li-Fi?
Li-Fi, also known as "Light Fidelity" is a wireless optical networking technology, which uses light-emitting diodes (LEDs) to transmit data. In 2011, professor Harald Haas made a Li-Fi demonstration at the TED (Technology, Entertainment, Design) Global Talk on Visible Light Communication (VLC):
VLC uses light as a medium to deliver high-speed communication like Wi-Fi and complies with the IEEE standard IEEE 802.15.7. The IEEE 802.15.7 is a high-speed, bidirectional, and fully networked wireless communication technology-based standard similar to Wi-Fi's IEEE 802.11.
How does Li-Fi work?
Li-Fi is a high speed, bidirectional, and fully networked wireless communication of data using light. Li-Fi constitutes of several light bulbs that form a wireless network.
When an electrical current goes through to a LED light bulb, a stream of light (photons) emits from the lamp. LED bulbs are semiconductor devices, which means that the brightness of the light flowing through them can change at extremely high speeds. The signal is sent by modulating the light at different rates. The signal can then be received by a detector which interprets the changes in light intensity (the signal) as data. Also when the LED is ON, you transmit a digital 1, and when it is OFF, you transmit a 0.
Li-Fi Benefits
The primary benefits of Li Fi are as follows:
• Security: Provides entirely secure access. Where there is no light there is no data.
• Safety: Does not produce electromagnetic radiation and does not interfere with existing electronic systems.
• Localisation: Allows localisation due to small coverage area of Li-Fi access point - localisation can be used for very precise asset tracking.
• Data density: Provides ubiquitous high-speed wireless access that offers substantially greater data density (data rate per unit area) than RF through high bandwidth reuse.
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