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文件名称：Morgan Kaufmann - Location-Based Services
文件大小：5.93MB
文件格式：PDF
更新时间：2016-11-07 15:05:43
Location Based Services
There is an explosion of technologies to communicate with mobile
and occasionally-connected devices and sensors. Wireless networking
(WiFi), cellular telephone (GSM), packet radio, radio frequency
identifiers (RFID), smart personal object technology (SPOT), global
positioning systems (GPS), and sensor networks are already with us.
Many completely new communication innovations are on the horizon.
These technologies enable new applications. They allow mobile users
to query their environment and they allow applications to monitor and
track remote objects. People can ask about nearby services – for example a
restaurant, and how to get there from here. Police, hospital, and taxi
dispatchers can send the closest vehicle to where it is needed. Conversely,
monitoring systems can track the flow of goods and monitor
environmental parameters. Railroads, airfreight, wholesalers, retailers,
and other transportation industries can track goods from their source
to their final destination on the retail shelf. Environmental systems can
monitor air quality, noise, streamflow, and other environmental
parameters.