Low Cost Identification Applications in Traffic Vehicular Environments
Jaume Segura-García, Juan G., A. Miguel, Rui Francisco, Antonio Soriano · InTech eBooks · 2010
This work has produced an API for the development of applications for Electronic Registration and Identification of vehicles has been implemented. This API has been published under GNU/GPL license. (API and documentation can be downloaded from http://smagris3.uv.es/preri). Several applications for test have also been implemented. Three wireless technologies (WiFi, Bluetooth and RFID) have been proposed. These applications have been installed on the PDA and have been tested in a road next to the Institute of Robotics at the University of Valencia. The tests of the developed applications have showed that [Segura, 2008]: The used technologies are valid for the applications implemented for slow uses (up to 60 kph). The discovery time in Bluetooth devices is too high (between 10 and 40 seconds) for dynamic applications. WiFi has problems in the discovery process through SSID due to the fact that it is not implemented in the version used of the J2ME. In the tests a fixed private range of IPs was used to simulate this behaviour; however it would present problems in a real implementation. WiFi and Bluetooth had high error taxes in the communication for velocities higher than 60 km/h. This is not the case for RFID. The amount of information to be transmitted in WiFi and Bluetooth applications are higher than in RFID. In case of a high humidity (or in a rainy day), the frequency of these three technologies used (2,45 GHz) has a high power attenuation.