Abstract
With the emergence of Internet shopping, the mall wilted in the face of fierce competition increasingly. So it should find a way of new technology for a change, in order to build a more sophisticated services. Indeed, Indoor Positioning technology is the key. A kind of positioning technology is use mobile phones and base stations to determine the location of the mobile. The holder's trajectory can get through the statistics of large-scale location about anonymous user. Even in the special position the mall can push information keywords and make the service management more intelligent. When mobile phones become an indispensable things step by step, it can help the mall to reflect the location of the holder and to push the information of goods to improve the promotion of goods. In this paper, using the Time Of arrivals (shortened form TOA) positioning for 3 D Indoor Positioning, which is the classic of indoor positioning technology. In view of the variety and complexity of the indoor environment, we build a more optimized mathematical model to solve those problem.
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