Abstract:We developed a navigation system based on wireless visible light data transmission channel and an algorithm for the decoding on smartphones. The work aims to create an interactive navigation system inside the Hermitage Museum for museum staff. The system was designed for using a modern smart-phone device as a receiver, a conventional LED illuminator as transmitter and a RGB diode as a navigation point in each room of the museum. We developed a modulator for data transmission, an algorithm for receiving and processing information using a stock camera of an iOS-based smart-phone, organized a point-to-point network between the LED illuminators and the server with a full back-end and front-end communication. The system allows transmitting data with rates up to 2 kbps on distance up to 1 meter.
References:1. Haas H, Yin L, Wang Y, and Chen C2016 What is Li-Fi? J. of Lightw. Tech. 34, 1544. 2. Rajagopal N, Lazik P and Rowe A 2014 Visual Light Landmarks for Mobile Devices (IPSN-14 Proceedings of the 13th International Symposium on Information Processing in Sensor Networks).
- navigation system
- visible light transmission channels
- RGB diodes
- LED illuminator
- luminous flux modulation
The Intellectual Lighting And Data Transmission System based On RGBW Light Emitting Diodes Light & Engineering Vol. 29, No. 1