Summary: | 碩士 === 朝陽科技大學 === 資訊管理系 === 102 === The expending of technology and smart devices, Many
applications are used for mobile services. There are many kinds
of mobile services. Especially context-aware applications is
an important issue. It adopts user data, such as user
preferences, location, time and so on. These data will be
analyzed through the systems and the services will be
recommended based on user's demand. Global positioning system
is used for outdoor location. However, it's not suitable for
indoor location. Therefore, indoor positioning systems using
other techniques, such as Ultrasonic, Radio Frequency
Identification, Wireless Local Area Network positioning
methods. Consideration of implementation costs, this paper
adopts wireless network for positioning. Message transmission
will be more unstable when the smart device farther away from
the wireless AP.We use this feature for indoor positioning
research. The experimental results show that the availability
of the positioning method.The location system output user’s
location them the system will also use ontology to provide
context-aware services. Experimental results show that our
proposed method is useful.
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