There are many applications using Global Navigation Satellites System
(GNSS) as their navigation and guidance sensors. However, these
applications are limited by the reception of GNSS signal. When the GNSS
signal strength is weak or the signal is blocked in certain environments, for example, indoor area, these applications might not be able to provide the positioning information. Therefore, this paper develops a Wireless Sensor Network (WSN) positioning system to provide users the positioning
information in the indoor area. As part of this work, this paper also
develops an indoor Geographic Information System (GIS) which can
provide users some information based on their locations. This paper uses
the Department of Aeronautics and Astronautics building of National Cheng
Kung University as an example to demonstrate the developed positioning
and location based information test bed.