Indoor Positioning Technology (I) -- Introduction

Source: Internet
Author: User

With the rapid growth of data and multimedia services, the demand for positioning and navigation is growing, especially in complex indoor environments, in environments such as airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, and mines, it is often necessary to determine the location of mobile terminals or their owners, facilities and items in the room.GPSIt is currently the most widely used positioning technology. WhenGPSWhen the receiver is working indoors, the positioning accuracy is very low because the signal is greatly reduced due to the influence of the building. It is impossible to extract navigation data and time information from satellite broadcasting directly to achieve the same purpose as outdoors. In-room positioning technology,Indoor positioning can provide more intelligent mobile services and more precise location search, which makes it possible to become another popular mobile service.

On the other handWith the development of wireless communication technology, emerging wireless network technologies, suchWiFi,ZigBee, Bluetooth, and ultra-broadband have been widely used in offices, homes, factories, etc.The number of indoor positioning needs is basically reached, and the equipment cost required by the indoor positioning technology is also gradually decreasing. It is time for the indoor positioning technology to go out of the lab and go to the market, tested by the market.

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