b******d
发帖数: 43 | 1 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. | e**o
发帖数: 5509 | 2 这个怎么这么准？比gps准多了。。。
network
drivers
towers
【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
| l*****u
发帖数: 12114 | 3 这里貌似要WIFI是工作的？貌似是要上传数据和那个恐怖的数据库做比较？
network
drivers
towers
【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
| i**w
发帖数: 422 | 4 把wifi disable了看看还有没有位置信号不就知道了?
【在 l*****u 的大作中提到】
: 这里貌似要WIFI是工作的？貌似是要上传数据和那个恐怖的数据库做比较？
:
: network
: drivers
: towers
| l*****u
发帖数: 12114 | 5 试过了，有的GPS软件说不能定位，有的还可以，估计是不行，说可以的估计都是用
cached的数据。不过如果是WIFI定位的就没有意义了，还是用BT GPS比较好。玩PDA的
基本手里都有几个BT GPS...我一个老的已经PAIR上了。有时间看看那些数据口有没有
搞定，一堆的软件要装。现在玩这些不像以前那么有兴趣了，就想等别人都做好了用。
。。
【在 i**w 的大作中提到】
: 把wifi disable了看看还有没有位置信号不就知道了?
| y*h
发帖数: 25423 | 6
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
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