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    • 6. 发明申请
    • PRECISE GPS DEVICE AND METHOD USING A WIRELESS AP
    • 精确的GPS设备和使用无线AP的方法
    • WO2011155806A3
    • 2012-03-08
    • PCT/KR2011004308
    • 2011-06-13
    • KOREA ELECTRONICS TELECOMMLEE SANG UKAHN DO SEOBLEE JAE EUN
    • LEE SANG UKAHN DO SEOBLEE JAE EUN
    • G01S19/07
    • G01S19/07
    • According to the present invention, a GPS reference station generates and transmits compensation information on GPS deviations for each wireless AP, and a user terminal recognizes and uses the information to compensate for information received through a GPS receiver of the user terminal, in order to deliver precise GPS performance. In particular, a precise GPS system of the present invention comprises: a GPS reference station for receiving a first satellite signal from a GPS satellite to generate navigation compensation information on a wireless AP, and transmitting the generated navigation compensation information to a wireless AP; a wireless AP for receiving the navigation compensation information from the GPS reference station, and transmitting the information to a user terminal; and a user terminal for receiving a second satellite signal from a GPS satellite, recognizing the navigation compensation information from the wireless AP, and generating precise user position information based on the second satellite signal and the navigation compensation information.
    • 根据本发明,GPS参考站生成并发送关于每个无线AP的GPS偏差的补偿信息,并且用户终端识别并使用该信息来补偿通过用户终端的GPS接收机接收的信息,以便递送 精确的GPS性能。 具体地说,本发明的精确GPS系统包括:GPS基准站,用于从GPS卫星接收第一卫星信号,生成关于无线AP的导航补偿信息,并将所生成的导航补偿信息发送给无线AP; 无线AP,用于从GPS参考站接收导航补偿信息,并将该信息发送到用户终端; 以及用户终端,用于从GPS卫星接收第二卫星信号,从无线AP识别导航补偿信息,并且基于第二卫星信号和导航补偿信息生成精确的用户位置信息。