An indoor positioning system (IPS) is used to provide seamless indoor navigation-based services and could overcome the inaccurateness of a GPS navigation or other satellite technologies inside multistory buildings, such as retail/ shopping malls, campus/ schools, hospitals, subways, tunnels, and underground locations. Current IPS approaches, e.g. Wi-Fi, Bluetooth, RFID, Fingerprinting, UWB and IR-based technologies, require a complex set-up and expensive to implement in a building, either using an existing wireless infrastructure or installing a new dedicated one.
A promising alternative is Li-Fi (Light-Fidelity), which leverages the light generated by LED light source as the data transmission medium and could offers a huge amount of visible light spectrum that is unregulated, safe, and non-interfering to all existing and emerging wireless technologies. Li-Fi is also offering other distinctive characteristics, in terms of security and reliability. In this research project, we focused on the R&D toward commercial and industry applications by developing an integrated solution of Li-Fi communication onto Indoor Navigation Services Application. As the current Li-Fi technology requires specific reception devices to be installed on computer/ mobile devices, we propose to make use of a regular smartphone devices, with their embedded camera system, to be able to receive the signal sent by the LED.
Higher indoor positioning accuracy and to overcome the inaccurateness of existing indoor GPS due to their signals bounce around inside buildings
Use of standard mobile devices and enable a more efficient user’s experience for real-time positioning with geo-localized information being pushed into the mobile phones in a secure way
Lead to a low-cost implementation, energy efficient and longer lifetime span by leveraging the existing LED lighting infrastructure with minor modifications. On the receiver side, no hardware modifications required on the mobile device/ smart phone