Calibration method of air pressure for a mobile device, calibration device, and mobile device

1. A calibration method of air pressure for a mobile device, the calibration method comprising:

acquiring a self-location data of the mobile device;

acquiring a temperature data around the mobile device using a temperature sensor;

acquiring an altitude value from either a web site or a web service according to the self-location data;

calculating air pressure information using the altitude value and the temperature data; and

performing a calibration of air pressure for the mobile device using the air pressure information.

2. The calibration method according to claim 1 , wherein a Global Positioning System (GPS) is used to acquire the self-location data of the mobile device.

3. The calibration method according to claim 1 , wherein acquiring the altitude value from either the web site or the web service according to the self-location data comprises acquiring the altitude value directly from either the web site or the web service according to the self-location data.

4. The calibration method according to claim 1 , further comprising requesting an air pressure value from either the web site or the web service according to the self-location data, wherein the mobile device acquires the altitude value when the air pressure value is not available from either the web site or the web service.

5. A mobile device comprising a calibration device of air pressure, wherein the calibration device comprises:

a first acquiring position sensor configured to acquire a self-location data of the mobile device;

a second acquiring position sensor comprising:

a temperature sensor configured to acquire a temperature data around the mobile device;

an altitude sensor configured to acquire an altitude value from either a web site or a web service according to the self-location data; and

a processor configured to:

calculate air pressure information using the altitude value and the temperature data; and

perform calibration of air pressure for the mobile device using the air pressure information.

6. The calibration device according to claim 5 , wherein the first acquiring position sensor is a Global Positioning System (GPS) apparatus.

7. The calibration device according to claim 5 , wherein the second acquiring position sensor is configured to acquire the altitude value directly from either the web site or the web service according to the self-location data.

8. The calibration device according to claim 5 , where the second acquiring unit requests an air pressure value from either the web site or the web service according to the self-location data, and wherein the second acquiring unit acquires the altitude value when the air pressure value is not available from either the web site or the web service.

9. A computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a mobile device to:

acquire a self-location data of the mobile device;

acquire a temperature data around the mobile device using a temperature sensor;

acquire an altitude value from either a web site or a web service according to the self-location data;

calculate air pressure information using the altitude value and the temperature data; and

perform a calibration of air pressure for the mobile device ng the air pressure information.

10. The computer program product according to claim 9 , further comprising request an air pressure value from either the web site or the web service according to the self-location data, wherein the computer program product acquires the altitude value when the air pressure value is not available from either the web site or the web service.