Question

我想知道,如果我在申请中使用/code>的全球定位系统,Swi-fi是否会影响全球定位系统的准确性。

Answer 1

我将补充这一意见,但确实取得了成功。

Edit:这或许是一个更清楚的方式。

Phone turns on GPS, begins GPS signal search
Phone scans for Wifi Access Points, Cell Towers, captures IDs
Phone sends captured IDs to Vendor s servers
Vendor s servers respond with any known location(s) of Wifi APs and towers, and possible other meta-data useful in reducing search-space.
Phone uses that data to get an approximate location
Phone feeds that approximate location back to the GPS software, reducing possible search space.
When phone gets lock, periodically sends back Wifi APs and Cell Towers seen plus the known GPS fix to vendor s DB.

许多供应商这样做,这不仅仅是 Apple果。

Answer 2

WiFi(和(或)电池塔三角)协助全球定位系统更快地给你一个地点,但并没有使地点更加准确。

EDIT-Ampul建议转至Wi-Fi和蜂窝网络连接,协助在article HT1975 上调全球定位系统卫星。说:

"Verify that you have a cellular or Wi-Fi network connection. This allows the Assisted GPS (A-GPS) on the device to locate visible GPS satellites faster, in addition to providing initial location information using the Wi-Fi or cellular networks. "

Answer 3

无,WiFi和全球定位系统使用不同的频率(2.4-2.5和1.2-1.5 Ghz)。

友情链接