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V. Gikas, C. Antoniou, G. Retscher, A. Panagopoulos, H. Perakis, A. Kealy, T. Mpimis, T. Economopoulos, A. Marousis:
"A Low-cost RFID/WiFi Positioning Solution for Parking Facilities Management";
Talk: 9th International Symposium on Mobile Mapping Technology, Sydney (invited); 2015-12-09 - 2015-12-11; in: "9th International Symposium on Mobile Mapping Technology", (2015), Paper ID 127, 7 pages.

A relatively low-cost system for indoor parking facilities management is under development, which is a combined solution of RFID and WiFi. An RFID localization scheme is proposed in the form of so-called virtual gates. To define such virtual gates either RFID tags or readers are placed at known locations throughout the area of interest. In this study, a number of tags are fixed at known positions and a moving reader is carried by each participating vehicle. Based on this configuration setup the Cell of origin (CoO) technique is applied, in which the system indicates the presence of the user carrying the reader in a cell around the tag location. To define a virtual gate, tags are installed along the parking spot corridors and at critical transit passages in the parking facility. In the case of WiFi it is investigated whether the CoO or location fingerprinting is a suitable technique for location determination of vehicles in a multi-storey car park. In this study, WiFi is employed to monitor the passing vehicles and bridge the gap until a tag can detect a userīs reader again. Thus, a combined positioning solution of RFID and WiFi is achieved. Both concepts are discussed here and the level of integration of RFID with WiFi is detailed.

Proximity, Cell-of-Origin, RFID Virtual Gates, WiFi Monitoring, Parking Facilities Management