俺是做这个的,WiFi版本没有GPS,3G版本有GPS,但是不出了,呵呵 定位用的Wifi,skyhook之类的Wifi定位原理如下,其实是个体力活 http://www.skyhookwireless.com/howitworks/coverage.php To pinpoint location, Skyhook's Core Engine uses a massive reference network comprised of the known locations of over 250 million Wi-Fi access points and cellular towers. To develop this database, Skyhook has deployed drivers to survey every single street, highway, and alley in tens of thousands of cities and towns worldwide, scanning for Wi-Fi access points and cell towers plotting their precise geographic locations. Skyhook's extensive coverage area includes most major metro areas in North America, Europe, Asia, and Australia.
【在 b******d 的大作中提到】 : 俺是做这个的,WiFi版本没有GPS,3G版本有GPS,但是不出了,呵呵 : 定位用的Wifi,skyhook之类的Wifi定位原理如下,其实是个体力活 : http://www.skyhookwireless.com/howitworks/coverage.php : To pinpoint location, Skyhook's Core Engine uses a massive reference network : comprised of the known locations of over 250 million Wi-Fi access points : and cellular towers. To develop this database, Skyhook has deployed drivers : to survey every single street, highway, and alley in tens of thousands of : cities and towns worldwide, scanning for Wi-Fi access points and cell towers : plotting their precise geographic locations. Skyhook's extensive coverage : area includes most major metro areas in North America, Europe, Asia, and
【在 b******d 的大作中提到】 : 俺是做这个的,WiFi版本没有GPS,3G版本有GPS,但是不出了,呵呵 : 定位用的Wifi,skyhook之类的Wifi定位原理如下,其实是个体力活 : http://www.skyhookwireless.com/howitworks/coverage.php : To pinpoint location, Skyhook's Core Engine uses a massive reference network : comprised of the known locations of over 250 million Wi-Fi access points : and cellular towers. To develop this database, Skyhook has deployed drivers : to survey every single street, highway, and alley in tens of thousands of : cities and towns worldwide, scanning for Wi-Fi access points and cell towers : plotting their precise geographic locations. Skyhook's extensive coverage : area includes most major metro areas in North America, Europe, Asia, and
network drivers towers 这种体力活不太靠谱啊,天文数字的前期上街扫描投资不说,WiFi的AP、router可以动 的啊,比如人搬家了,那就没戏了。买个新的router它也不能更新啊。 我觉得还是那天有人说的是带WiFi和GPS的手机后台自动扫描并回传数据库听起来更 make sense。
【在 b******d 的大作中提到】 : 俺是做这个的,WiFi版本没有GPS,3G版本有GPS,但是不出了,呵呵 : 定位用的Wifi,skyhook之类的Wifi定位原理如下,其实是个体力活 : http://www.skyhookwireless.com/howitworks/coverage.php : To pinpoint location, Skyhook's Core Engine uses a massive reference network : comprised of the known locations of over 250 million Wi-Fi access points : and cellular towers. To develop this database, Skyhook has deployed drivers : to survey every single street, highway, and alley in tens of thousands of : cities and towns worldwide, scanning for Wi-Fi access points and cell towers : plotting their precise geographic locations. Skyhook's extensive coverage : area includes most major metro areas in North America, Europe, Asia, and