Wireless Identification of Traffic Signs Using a Mobile Device

The number of wireless LAN capable cellular phone models is rapidly increasing. This article studies the possibility to use WLAN capable cellular phone as driving aid in a highway environment. In this scenario the traffic signs are equipped with wireless transmitters to send traffic sign information, which is received and displayed by the WLAN capable mobile devices. Received information acts as a reminder for the current road signs for the driver. This work defines a way to represent and store traffic signs digitally and specifies the form in which the information is transmitted. Capabilities of the proposed system are analyzed and a series of tests on a road environment is presented.