Information processing apparatus, information processing method, and program

• US 8,898,009 B2
• Filed: 03/14/2013
• Issued: 11/25/2014
• Est. Priority Date: 03/30/2012
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kimishima, Masato
• Primary Examiner(s): Cheung, Mary
• Assistant Examiner(s): BUTLER, RODNEY ALLEN
• Application Number:
  US13/828,659
• Publication Number:
  US 20130261959A1
• Time in Patent Office: 621 Days
• Field of Search: 701/445, 701/408, 701/518, 701/433, 701/534, 701/207, 701/213, 701/214, 702/160, 235/105, 455/115, 455/424, 455/425
• US Class Current: 701/445
• CPC Class Codes: G01C 22/006 Pedometers
• CPC Class Codes: G01S 19/40 Correcting position, velocity or attitude
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
• CPC Class Codes: G01S 19/52 Determining velocity

Abstract

There is provided an information processing apparatus including a speed calculating section configured to calculates a traveling speed of a user based on a signal received from a positioning signal transmitter, a walking tempo acquiring section configured to acquire a walking tempo of the user, and an evaluating section configured to evaluate, based on the walking tempo and the traveling speed, reliability of information calculated by using the signal received from the positioning signal transmitter.

Claims

1. An information processing apparatus comprising:

a speed calculating section configured to calculate a traveling speed of a user based on a signal received from a positioning signal transmitter;

a walking tempo acquiring section configured to acquire a walking tempo of the user;

an evaluating section configured to evaluate reliability of the calculated traveling speed based on the walking tempo and to evaluate reliability of information calculated by using the signal received from the positioning signal transmitter, and

a table generating section for generating an association table between the traveling speed and the walking tempo by using the traveling speed determined to be equal to or more than a predetermined level based on a result of the evaluations by the evaluating section.

2. The information processing apparatus according to claim 1, wherein

the evaluating section evaluates the reliability of the traveling speed based on a correlation coefficient between the walking tempo and the traveling speed if dispersion of the walking tempo is equal to or more than a predetermined threshold value, and evaluates the reliability of the traveling speed based on frequency distribution of the traveling speed if the dispersion of the walking tempo is less than the predetermined threshold value.

3. The information processing apparatus according to claim 1, further comprising

a position calculating section configured to calculate a position of the user by using the association table generated by the table generating section.

4. The information processing apparatus according to claim 3, further comprising

a display controlling section configured to display in a superimposed manner the position calculated by the position calculating section on a map.

5. The information processing apparatus according to claim 1, wherein

the information calculated by using the signal received from the positioning transmitter is positional information.

6. The information processing apparatus according to claim 1, wherein

the information calculated by using the signal received from the positioning transmitter is orientation information.

7. An information processing apparatus comprising:

a walking tempo acquiring section configured to acquire a walking tempo of a user;

a traveling speed acquiring section configured to acquire a traveling speed extracted, based on the walking tempo acquired by the walking tempo acquiring section, from an association table between the traveling speed and the walking tempo, the association table being generated by using the traveling speed determined to be equal to or more than a predetermined level and whose reliability is evaluated based on a correlation between the traveling speed calculated from a signal received from a positioning signal transmitter and the walking tempo; and

a position calculating section configured to calculate the position of the user based on the traveling speed.

8. The information processing apparatus according to claim 7, further comprising

a display controlling section configured to display in a superimposed manner the position calculated by the position calculating section on a map.

9. An information processing method comprising:

calculating, using a processor, a traveling speed of a user based on a signal received from a positioning signal transmitter;

acquiring, by using the processor, a walking tempo of the user;

evaluating, by the processor, the reliability of the calculated traveling speed based on the walking tempo and evaluating reliability of information calculated by using the signal received from the positioning signal transmitter, and

using the processor to generate an association table between the traveling speed and the walking tempo by using the traveling speed determined to be equal to or more than a predetermined level based on a result of the evaluations.

10. A program allowing a computer to function as an information processing apparatus, the information processing apparatus including:

a speed calculating section configured to calculates a traveling speed of a user based on a signal received from a positioning signal transmitter;

a walking tempo acquiring section configured to acquire a walking tempo of the user;

an evaluating section configured to evaluate reliability of the calculated traveling speed based on the walking tempo and to evaluate reliability of information calculated by using the signal received from the positioning signal transmitter, and

a table generating section for generating an association table between the traveling speed and the walking tempo by using the traveling speed determined to be equal to or more than a predetermined level based on a result of the evaluations by the evaluating section.