Method and arrangement for determining altitude
First Claim
1. A system for determining altitude comprising:
- a portable electronic device;
one of a first satellite-positioning sensor coupled to the device, the satellite-positioning sensor configured for determining a satellite-based elevation of the device on the basis of satellite data, and a mechanism for receiving altitude-position information from a first separate unit including a second satellite-positioning sensor;
at least one of a first barometric sensor for measuring atmospheric-pressure coupled to the device, a mechanism for receiving atmospheric-pressure information from a second separate unit including a second barometric sensor, a first acceleration sensor for measuring atmospheric-pressure information coupled to the device, and a mechanism for receiving acceleration information from a third separate unit including a second acceleration sensor; and
a processor coupled to the device, the processor configured for determining an altitude reading on the basis of the satellite-based elevation, and at least one of the atmospheric-pressure information and the acceleration information, the processor arranged to calculate a corrected altitude reading with the aid of a rate of change of the elevation on the basis of at least one of a satellite-based determined elevation data, and the atmospheric pressure information and/or the acceleration information based on dynamic response time of the atmospheric pressure information and/or the acceleration information with respect to the rate of elevation change.
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Accused Products
Abstract
The invention relates to a portable electronic device and method for determining altitude. The device can comprise a satellite-positioning sensor for determining the elevation of the device on the basis of satellite data, a barometric sensor for measuring atmospheric-pressure information and/or an acceleration sensor for measuring acceleration information, and means for determining the altitude reading on the basis of the satellite-based elevation and the atmospheric-pressure and/or acceleration information. According to the invention, the means for determining the altitude reading are arranged to calculate a corrected altitude reading with the aid of the rate of change in elevation determined at least partly on the basis of the elevation determined on a satellite basis and atmospheric-pressure and/or acceleration information. With the aid of the invention, the altitude profile of exercise can be measured precisely.
19 Citations
24 Claims
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1. A system for determining altitude comprising:
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a portable electronic device; one of a first satellite-positioning sensor coupled to the device, the satellite-positioning sensor configured for determining a satellite-based elevation of the device on the basis of satellite data, and a mechanism for receiving altitude-position information from a first separate unit including a second satellite-positioning sensor; at least one of a first barometric sensor for measuring atmospheric-pressure coupled to the device, a mechanism for receiving atmospheric-pressure information from a second separate unit including a second barometric sensor, a first acceleration sensor for measuring atmospheric-pressure information coupled to the device, and a mechanism for receiving acceleration information from a third separate unit including a second acceleration sensor; and a processor coupled to the device, the processor configured for determining an altitude reading on the basis of the satellite-based elevation, and at least one of the atmospheric-pressure information and the acceleration information, the processor arranged to calculate a corrected altitude reading with the aid of a rate of change of the elevation on the basis of at least one of a satellite-based determined elevation data, and the atmospheric pressure information and/or the acceleration information based on dynamic response time of the atmospheric pressure information and/or the acceleration information with respect to the rate of elevation change. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for determining altitude of a portable electronic device including the steps of:
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measuring the elevation of the device with the aid of a satellite-positioning system; measuring atmospheric pressure with the aid of at least one of a barometric sensor and an acceleration sensor; and determining a corrected elevation on the basis of a satellite-based measured elevation and at least one of an atmospheric-pressure measurement and an acceleration measurement, the corrected elevation is determined at least partly by correcting the satellite-based determined elevation afterwards on the basis of the rate of change of the elevation detected on the basis of at least one of the atmospheric-pressure measurement and the acceleration measurement. - View Dependent Claims (22, 23, 24)
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Specification