Does unconnected WIFI help pinpoint your location and why?

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Discussion Overview

The discussion centers around the role of unconnected WiFi in determining location accuracy on navigation apps like Waze and Google Maps. Participants explore whether having WiFi enabled, even without a connection, contributes to location pinpointing and the mechanisms behind it.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant questions the necessity of WiFi being connected for location accuracy, wondering if having WiFi on helps with location pinpointing.
  • Another participant shares an experience where Google Maps updated their location accurately on an iPad without cellular or GPS capabilities, suggesting that local WiFi signals can assist in location determination.
  • A different participant explains that WiFi Positioning System (WPS) can determine location based on proximity to WiFi hotspots, utilizing a database of WiFi locations.
  • It is noted that Android devices continuously scan for visible WiFi access points, recording their SSID and MAC addresses, which can enhance location accuracy when combined with GPS data.
  • Participants discuss that the background data collection by devices contributes to a more accurate mapping of WiFi signals in urban areas.

Areas of Agreement / Disagreement

Participants generally agree that having WiFi enabled can aid in location accuracy, even if not connected, but the specifics of how this works and the extent of its effectiveness remain somewhat unclear. Multiple viewpoints on the mechanisms involved are presented without consensus.

Contextual Notes

The discussion does not resolve the technical details of how WiFi contributes to location accuracy, nor does it clarify the limitations or assumptions regarding the effectiveness of WiFi Positioning System in various environments.

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I use waze and/or googlemaps to navigate. When I plan a route I 1st turn GPS on on my phone. Phone then always asks me to also turn on WIFI, but I always ignore this and leave it off because I thought its pointless if you're not actually connected to wifi. But does WIFI being on (without being actually connected) actually help pinpoint your location? How does it do that? My phone loses my location about 25% of the time, and I'm wondering if this is why? thanks!
 
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Google maps can use local wifi signals to pinpoint your location. I found this out when i used my ipad to get a map to my friends house and while was driving my map location updated matching the street and where on the street i was. It really surprized me because my ipad only works on wifi. there's no cellular or gps chip in it. Its an old ipad2.
 
fansounds said:
I use waze and/or googlemaps to navigate. When I plan a route I 1st turn GPS on on my phone. Phone then always asks me to also turn on WIFI, but I always ignore this and leave it off because I thought its pointless if you're not actually connected to wifi. But does WIFI being on (without being actually connected) actually help pinpoint your location? How does it do that? My phone loses my location about 25% of the time, and I'm wondering if this is why? thanks!
You don't have to be connected to WIFI to use the WIFI Positioning System - WPS - to determine your location. The GPS app on your phone can determine how far you are from a WIFI hotspot and use a database of WIFI locations to determine where you are.

AM
 
fansounds said:
I use waze and/or googlemaps to navigate. When I plan a route I 1st turn GPS on on my phone. Phone then always asks me to also turn on WIFI, but I always ignore this and leave it off because I thought its pointless if you're not actually connected to wifi. But does WIFI being on (without being actually connected) actually help pinpoint your location? How does it do that? My phone loses my location about 25% of the time, and I'm wondering if this is why? thanks!
Android phones and tablets periodically check to see what wifi access points are visible to your device (the SSID & MAC address of the access point). This information is recorded. If your GPS is also on, then the location of your device is also recorded. This data helps accurately map the location of all the WiFi signals around. With every android device doing this, google (and every other provider) already has an accurate location of all the wifi in cities using this technique.

Your devices are doing this in the background all the time, you don't need to be using your maps app or be on wifi. The phone/tablet is collecting this data always.

When you turn your WiFi on but not connected, it is in scanning mode by default, i.e. it's looking to see what wifi signals are available. This data is used by google maps in addition to your GPS signal to accurately determine your exact location. The more points of data you have, the more accurately your phone can guess where you are.
 
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