摘要:
A file management method displays representations of files belonging to a predetermined folder and representations of files belonging to a subfolder of the predetermined folder in a virtual form in which the representations of the files belonging to the predetermined folder and the representations of the files belonging to the subfolder belong to a single folder so that the file of desired content can be easily and securely found. The file management method, a program for performing the file management method, a recording medium containing the program, and a file management apparatus are intended for use in car-mounted apparatuses.
摘要:
An information processing apparatus that obtains content data and first position information corresponding to the content data; obtains second position information corresponding to a second person having a predetermined relationship with a first person associated with creating the content data; and associates identification corresponding to the second person with the content data based on a predetermined relationship between the first position information and the second position information.
摘要:
As an embodiment of the present invention, in a navigation system using an acceleration sensor, when position information cannot be obtained from a GPS processing section, a velocity detecting unit performs an operation using detected acceleration αG, a measurement time mt, a velocity V0 at a time t0, gravity acceleration g and an amount of height change Dh, according to Expression (11). By using the relationship among a gravity acceleration component gf, the gravity acceleration g, the amount of height change Dh and distance Dm shown in Expression (4), the gravity acceleration component gf can be offset by the amount of height change Dh. Therefore, velocity V can be calculated with high accuracy without receiving the effect of the gravity acceleration component gf.
摘要:
Provided is a velocity calculating device including a vertical acceleration detector that detects a vertical acceleration generated due to an undulation of a contact surface; a horizontal angular velocity detector that detects a horizontal angular velocity generated due to the undulation; a correlation coefficient calculator that calculates a correlation coefficient that represents a degree to which an acceleration in the direction of travel is mixed into the vertical acceleration in accordance with an attachment angle; a true vertical acceleration detector that calculates a true vertical acceleration by subtracting the acceleration in the direction of travel mixed into the vertical acceleration from the vertical acceleration, the acceleration in the direction of travel mixed into the vertical acceleration being calculated using the correlation coefficient; and a velocity calculator that calculates a velocity of a moving body on the basis of the true vertical acceleration and the horizontal angular velocity.
摘要:
An information processing apparatus that includes an interface that transmits identification information corresponding to a first person associated with the information processing apparatus to another information processing apparatus when content is generated at the information processing apparatus, and receives information indicating a predetermined relationship between the first person and a second person associated with the another information processing apparatus. The information processing apparatus further comprising a processor that associates identification corresponding to the second person with the content based on the predetermined relationship between the first person and the second person.
摘要:
To accurately detect a zero gravity offset in an acceleration sensor. As an embodiment of the present invention, in the case where position information can be obtained from a GPS processing section, a velocity detecting unit performs an operation according to Expression (15), using real detected acceleration αGr that was actually obtained from the acceleration sensor, vehicle acceleration αP based on the position information, distance Dm, an amount of height change Dh based on pressure PR, and gravity acceleration g. Therefore, offset acceleration αo can be accurately calculated, and an acceleration detection signal can be converted into detected acceleration αG with high accuracy, based on a zero gravity offset value Vzgo by that the above offset acceleration αo was converted.
摘要:
A navigation apparatus includes: a main unit to be attached to a mobile object through a base section, the main unit detecting a current position of the mobile object based on positioning information; a section that calculates acceleration applied to the mobile object based on the mobile object's speed; an acceleration sensor that observes acceleration applied to the main unit; a section that calculates an attachment inclination of the acceleration sensor with respect to the mobile object; a section that estimates, while the positioning information is not being supplied, a speed and position of the mobile object; a section that detects whether the main unit is mounted on the base section; and a section that forces the above section to stop estimating the speed when the main unit is not mounted on the base section.
摘要:
A navigation apparatus includes: a main unit to be attached to a mobile object through a base section, the main unit detecting a current position of the mobile object based on positioning information; a section that calculates acceleration applied to the mobile object based on the mobile object's speed; an acceleration sensor that observes acceleration applied to the main unit; a section that calculates an attachment inclination of the acceleration sensor with respect to the mobile object; a section that estimates, while the positioning information is not being supplied, a speed and position of the mobile object; a section that detects whether the main unit is mounted on the base section; and a section that forces the above section to stop estimating the speed when the main unit is not mounted on the base section.
摘要:
A navigation apparatus includes: a section that calculates a mobile object's acceleration in the direction of the motion, based on the mobile object's speed calculated from information received from a satellite; a section that calculates lateral acceleration whose direction is perpendicular to the mobile object's motion, based on the mobile object's speed and direction calculated from information received from the satellite; an acceleration sensor that observes motion acceleration of the mobile object and gravity acceleration; a section that calculates an altitude difference of road based on an atmospheric pressure value supplied from a barometric sensor; a section that calculates an inclination angle of the road in the direction of the motion, based on the altitude difference and a travel distance corresponding to the mobile object's speed; and a section that calculates an attachment angle of the acceleration sensor with respect to the mobile object by using a multidimensional function formula.
摘要:
As an embodiment of the present invention, in a navigation system using an acceleration sensor, when position information cannot be obtained from a GPS processing section, a velocity detecting unit performs an operation using detected acceleration αG, a measurement time mt, a velocity V0 at a time t0, gravity acceleration g and an amount of height change Dh, according to Expression (11). By using the relationship among a gravity acceleration component gf, the gravity acceleration g, the amount of height change Dh and distance Dm shown in Expression (4), the gravity acceleration component gf can be offset by the amount of height change Dh. Therefore, velocity V can be calculated with high accuracy without receiving the effect of the gravity acceleration component gf.