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Abstract. Mobile devices can be used in many areas such as shopping, entertainment and education. The number of mobile applications which provides information about a city or region, helps to find route by navigation and makes accommodation plans with food and beverage suggestions, is also increasing. Since these devices are portable and have access to internet, they emerges as a new and important potential for tourism sector. In particular, the increase in the use of route planning and navigation applications, which are location based services within the scope of Geographic Information Systems, has also affected the tourism sector. Which route planning and navigation applications are used extensively by tour operators, tourist guides and individual visitors ? What are the strengths and weaknesses about these applications? Answers to such questions were sought in this study.

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Global Navigation Satellite System is widely accepted and it has good positioning accuracy for outdoor applications. However, it does not provide sufficient positioning accuracy for inside of buildings. Signals are attenuated inside of buildings or dense high building areas because various materials between satellites and receiver create interference to the signal propagation. Thus, indoor positioning technologies have emerged to cover the problem. In this paper, indoor positioning technologies have been investigated and UWB based indoor positioning technology has been chosen between them. In addition to indoor positioning, accelerometer and Wi-Fi connection has been added to the system for mobility. The accelerometer detects emergency cases and alerts relatives of an intended person by using web service. Hereby, remote navigation system design is presented for first aid of the user. The system can detect emergencies, especially falls using the accelerometer and it can locate patients anywhere in the world. The designed system showed that it is possible to detect emergencies and transfer to the web with a 24.17cm average positioning error. Also, it is an assuring system for future remote positioning applications.