A practical indoor position estimation by using a laptop computer equipped with sensors

The importance of location based service has been recently addressed in many literatures and thus various positioning schemes for outdoors as well as indoors have been introduced. However, there has been a practical issue of implementation over various positioning schemes, although accurate positioning performance can be achieved. In this paper, a practical indoor positioning scheme that effectively locates a pedestrian holding a laptop computer equipped with two commonly used sensors is proposed1, and the performance of proposed scheme is evaluated with experiments for a simple path as well as a real route in indoor of general building at university. According to the experiment results, the positioning error was less than 1m in simple path, while the average error was 1.61m for a real route.