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公开(公告)号:US09961618B2
公开(公告)日:2018-05-01
申请号:US14640901
申请日:2015-03-06
IPC分类号: H04W64/00 , H04W48/16 , H04W24/00 , H04W4/02 , H04W52/02 , H04M1/725 , G01S5/00 , G06F1/00 , H04M1/00 , G01S19/34 , G01S19/48
CPC分类号: H04W48/16 , G01S5/00 , G01S19/34 , G01S19/48 , G06F1/00 , H04M1/00 , H04M1/72572 , H04M2250/06 , H04W4/02 , H04W4/021 , H04W4/027 , H04W4/029 , H04W24/00 , H04W52/0241 , H04W52/0254 , H04W64/00 , Y02D70/00 , Y02D70/142 , Y02D70/164
摘要: A geo-fence capable device is disclosed that is capable of performing an accurate geo-fence operation while minimizing power consumption. The device includes sensors, Wi-Fi connectability and GNSS. Sensors intermittently detect whether the device is in motion. When determined to be in motion, Wi-Fi is used to acquire a wireless access point list and to compare the access point list to previously-stored access points in order to determine whether the device is still within a particular region. GNSS is used to confirm exit from a region and to intermittently monitor whether the device has entered a new region. GNSS and application processor use can be minimized by utilizing sensor and Wi-Fi functionality as preliminary region monitors.