AUDIO GUIDE APP
Beside showing the location of the visitor and the map of the exhibition, like what SenMedia did in many different exhibitions before, a virtual guide function has been adopted as audio guide app. The mobile app will play the introduction for different exhibit based on the location of the visitor. Mixture of Bluetooth Low Energy (BLE), WiFi, ultra-sound technology is used in the calculation of triangulation to define the position of visitor. It also supports many visitors in crowded indoor environment by interference cancellation.