GPS, AGPS, LBS, WiFi location and test methods

First, Key knowledge

1, GPS can exist independently, do not rely on the network;

2, aGPS must rely on GPS, if GPS does not work properly, aGPS can not talk about;

3, aGPS can be understood as an auxiliary tool, on the basis of GPs only use, can not be used, like mm lipstick;

4, AGPS must use the network, GPRS or WiFi;

5, aGPS is in the GPS did not search for the satellite signal, the first through the network to download a satellite information, the data transmitted handed to Gps,gps can be directly to find the satellite, eliminating the cold start to search the star time (fast 10 seconds, a few minutes slow);

6, aGPS in the indoor void, why? Because the indoor GPS is invalid;

7, aGPS used, is faster than the speed of GPS positioning;

8, LBS base station location services, must have a SIM card, no card can not work;

9, WiFi location, can no GPS, can not plug SIM card, as long as can connect on the WiFi can be located, the premise is to use this function apk background has corresponding WIFI address database, such as Google MAP (domestic seems to not work, need to turn over the wall), Baidu, gold should also be able to ;

Second, the test method

Test machine Haier H8 (this machine GPS module is better, 45 seconds to start), test address, indoor (company), outdoor (downstairs lawn)

Indoor:

1, in the room, I reset the phone, insert SIM card, power on, turn off GPS, open the data, opened the browser login Baidu, click on the location or access to the Map page, is unable to locate;

2, in the room, I reset the cell phone, insert SIM card, boot, open GPS, open data, opened the browser login Baidu, click on the location or access to the Map page, is unable to locate;

3. in the room, I reset the phone, boot, turn off the GPS, WiFi, open the browser login Baidu, click on the location or access to the Map page, is unable to locate;

4. in the room, I reset the phone, boot, open the GPS, WiFi, open the browser login Baidu, click to locate or enter the Map page, is unable to locate;

Outdoor:

1, in the outdoor, I reset the phone, insert SIM card, power on, turn off GPS, open the data, opened the browser login Baidu, click on the location or into the map page, is unable to locate;

2, in the outdoor, I reset the mobile phone, insert SIM card, power on, open GPS, open the data, opened the browser login Baidu, click the location or enter the map page, wait 10 seconds, click again, you can locate;

3, in room I reset my phone, power on, turn off GPs, Turn on WiFi (connect to my own phone's wifi hotspot), open the browser to login Baidu, click to locate or enter the Map page, is unable to locate;

4. in the room outside , I reset the phone, power on, turn on the GPS, turn on wifi (connect to my own phone's wifi hotspot), open the browser login Baidu, click on the location or access to the map page, wait 10 seconds, click again, you can locate;

If you have any questions, please email to [email protected], thank you for your reading

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GPS, AGPS, LBS, WiFi location and test methods