METHOD OF CONTROLLING MOBILE INFORMATION TERMINAL AND MOBILE INFORMATION TERMINAL

• US 20140287774A1
• Filed: 12/23/2013
• Published: 09/25/2014
• Est. Priority Date: 03/22/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: SATO, Takuya
• Granted Patent: US 9,341,699 B2
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G01S 5/01 Determining conditions which influence positioning, e.g. radio environment, state of motion or energy consumption
• CPC Class Codes: G01S 5/017 Detecting state or type of motion
• CPC Class Codes: H04M 1/72454 according to context-related or environment-related conditions
• CPC Class Codes: H04M 1/72457 according to geographic location
• CPC Class Codes: H04M 2250/06 including a wireless LAN interface
• CPC Class Codes: H04M 2250/10 including a GPS signal receiver
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of controlling a mobile information terminal including a positioning sensor includes creating a speed profile to a destination location based on a distance to the destination location, information on a speed of a mode of travel to the destination location, and information on stopping before the destination location, and calculating a crock time to cause the positioning sensor to perform positioning based on the speed profile.

Claims

1. A method of controlling a mobile information terminal including a positioning sensor, the method comprising:

creating a speed profile to a destination location based on a distance to the destination location, information on a speed of a mode of travel to the destination location, and information on stopping before the destination location; and

calculating a crock time to cause the positioning sensor to perform positioning based on the speed profile.

2. The method according to claim 1, wherein

the creating uses information on a speed of another mode of travel to the destination location as the information on the speed of the mode of the travel to the destination location when the speed of the mode of travel used for travelling to the destination location is slower than the speed of the another mode of travel.

3. The method according to claim 1, wherein

the information on stopping includes a number of stopping times before the destination location.

4. The method according to claim 3, wherein

the information on stopping includes time period of the stopping.

5. The method according to claim 1, wherein

the information on the speed of a mode of travel to the destination location is a travel speed, and

the creating creates the speed profile based on acceleration from the travel speed to the stopping or acceleration from the stopping to the travel speed.

6. The method according to claim 1, wherein

the creating creates the speed profile every time the stopping is detected.

7. The method according to claim 3, wherein

the creating determines the number of stopping times before the destination location based on a frequency of detecting the stopping.

8. The method according to claim 7, wherein

the creating corrects the number of stopping times before the destination location based on a variation in the frequency of detecting the stopping.

9. A control program of a mobile information terminal including a positioning sensor, the program causing the mobile information terminal to execute procedures comprising:

creating a speed profile to a destination location based on a distance to the destination location, information on a speed of a mode of travel to the destination location, and information on stopping before the destination location; and

calculating a crock time to cause the positioning sensor to perform positioning based on the speed profile.

10. A mobile information terminal including a positioning sensor, the mobile information terminal comprising:

a memory; and

a processor coupled to the memory and configured to;

create a speed profile to a destination location based on a distance to the destination location, information on a speed of a mode of travel to the destination location, and information on stopping before the destination location; and

calculate a crock time to cause the positioning sensor to perform positioning based on the speed profile.

11. A method of controlling a mobile information terminal including a positioning sensor, the method comprising:

calculating a clock time to cause the positioning sensor to perform positioning based on a distance to a destination location and a speed profile to slow down as approaching the destination location.

12. The method according to claim 11, wherein

the speed profile accelerates as leaving away from a current location with respect to a travel speed detected at the current location.