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    • 2. 发明申请
    • METHOD PROVIDING POSITIONING AND NAVIGATION INSIDE LARGE BUILDINGS
    • 在大型建筑物内提供定位和导航的方法
    • WO2010004081A1
    • 2010-01-14
    • PCT/FI2009/050486
    • 2009-06-09
    • NOKIA CORPORATIONBAJKO, Gabor
    • BAJKO, Gabor
    • G01S1/68H04W4/04H04W64/00H04W84/12G01S5/02
    • H04W64/00H04W4/043
    • Positioning and/or navigation of an electronic device within a building when GPS signals are unavailable is provided. The electronic device scans for available Wireless Local Area Network (WLAN) Access Points (APs) upon, e.g., entering a building. The electronic device detects a signal (e.g., beacon) from at least one available WLAN AP, whereupon the electronic device retrieves the indoor location of the available WLAN AP. The location information can be directly downloaded from the WLAN AP while in state-1 via, e.g., a Native Query Protocol which includes an extension to currently defined Native Query info elements that returns location information. Alternatively, the Media Access Control (MAC) address of the WLAN AP can be read from the beacon signal, which is then used to retrieve the location of the WLAN AP from an associated database. Additionally, various embodiments may be implemented with or via a mapping application or service, where the mapping application is able to display any floor's floor plan of a building and determine/obtain the position of the electronic device inside the building relative to the floor plan.
    • 提供了当GPS信号不可用时,建筑物内的电子设备的定位和/或导航。 电子设备例如在进入建筑物时扫描可用的无线局域网(WLAN)接入点(AP)。 电子设备从至少一个可用的WLAN AP检测信号(例如,信标),于是电子设备检索可用WLAN AP的室内位置。 位置信息可以在状态1通过例如本地查询协议从WLAN AP直接下载,该本地查询协议包括返回位置信息的当前定义的本地查询信息元素的扩展。 或者,可以从信标信号中读取WLAN AP的媒体访问控制(MAC)地址,然后信标信号用于从相关联的数据库检索WLAN AP的位置。 另外,各种实施例可以通过或经由映射应用或服务来实现,其中映射应用能够显示建筑物的任何楼层的平面图,并且相对于平面图确定/获得建筑物内的电子设备的位置。