Diseño e implementación de un prototipo de sistema de posicionamiento indoor basado en tecnologías IEEE 802.15.4F Y 802.11B para la Unidad Educativa Especializada “Dr. Luis Benavides”.

Abstract

In the following research WIFI (Wireless Fidelity) and RFID (Radio Frequency Identification) technologies were analysed in order to design and implement a prototype system for indoor positioning at Unidad Educativa Especializada “Dr. Luis Benavides”. The system consist of a RFID label with its respective reader, three access points, a mobile device with client application and sampling collection installed, and finally a computer with the location server and the database. The location server makes a request of user search in order to obtain a result uses the WKNN (K-Nearest Weight Neighbor) algorithm which compares the power levels previously stored in a database collected by the application of sample collection issued at that time by the mobile device which is carried by the user with a RFID card that allows reducing search parameters such as: time and physical space within the system. Thus, it is possible to choose from similar levels among them and show the location point of the device carriers. A taking fingerprint technique was applied because of its lows level of complexity with Visual C# and Studio Android programming languages, as well as the use of PostgreSQL in order to develop of the database. With the implementation of the prototype was possible to validate the system through test runs determining that the use of both RFID and WIFI the level of calculation accuracy of positioning is relatively higher obtaining an average of 0,658 m related to the real position of the user. It is concluded that it is possible the use of both technologies mentioned above, thus, it is recommended its implementation in the institution because of its low cost and positive results.