…VLC (Visible Light Communication) can transfer data by means of light. The light can be emitted by an LED or a fluorescent tube and has to be received and converted by a photo detector for example a smartphone camera. The lamp “flickers” in a way that humans don’t recognize it and that way…
…Modern smartphones have multiple sensors, which can be combined to get a more precise indoor positioning result. Using vertical sensor fusion has one big advantage: combining various sensors results in a more homogenous and more reliable outcome than using just one type. Most smartphones have the…
…Ultra-wideband (UWB) is a short-range radio technology which can be used for indoor positioning. This technology is particularly in demand in manufacturing and logistics, where accuracy of 10-30 centimetres is required. This short-range radio technology uses an extremely wide frequency range with a…
…Indoor navigation by Google: Indoor Maps Google itself writes about Indoor Maps: “View floor plans of commercial locations such as airports, department stores, shopping centres or railway stations in Google Maps.” Google’s system locates the user inside the building via Wi-Fi trilateration. The…
…The Long Range Wide Area Network (LoRaWAN) is a low power radio system designed for IoT devices. It is characterized by a high reception range between the transmitter and receiver of approximately 2.5 kilometers in the inner-city area. Furthermore, short, bi-directional communication thrusts are…