Method and device for measuring the progress of a moving person
First Claim
1. A method for displaying progress of a moving person, comprising:
- measuring acceleration values of cyclic motion of locomotion of the moving person by means of an acceleration sensor;
determining step data as a function of step cycle-specific acceleration stage characteristic accelerations a+ and/or braking stage characteristic accelerations a−
obtained from the acceleration values measured by means of the acceleration sensor;
obtaining compass readings of the moving person from a magnetometer; and
determining a traveled route of the moving person by means of the step data and the compass readings,wherein the step data includes an acceleration stage characteristic acceleration a+ obtained as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a positive half-cycle of the step cycle, and a braking stage characteristic acceleration a−
obtained as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a negative half-cycle of the step cycle,wherein the method further comprises displaying, in a display unit, the traveled route of the moving person, and guiding the moving person via step by step navigation using the traveled route.
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Abstract
The invention relates to measuring devices to be used in physical measuring, and more particularly, to a method and a device for measuring the progress of a moving person. In the solution according to the invention the quantities describing the progress of the moving person are being calculated based on step cycle-specific acceleration stage characteristic accelerations a+ and step cycle-specific braking stage characteristic acceleration a− obtained from acceleration values measured by means of an acceleration sensor, and on the measured time. The invention aims at providing a solution, better and simpler than prior solutions, for measuring the progress of a moving person, which solution is applicable for use in a multitude of measuring solutions for ways of locomotion of various types.
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Citations
28 Claims
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1. A method for displaying progress of a moving person, comprising:
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measuring acceleration values of cyclic motion of locomotion of the moving person by means of an acceleration sensor; determining step data as a function of step cycle-specific acceleration stage characteristic accelerations a+ and/or braking stage characteristic accelerations a−
obtained from the acceleration values measured by means of the acceleration sensor;obtaining compass readings of the moving person from a magnetometer; and determining a traveled route of the moving person by means of the step data and the compass readings, wherein the step data includes an acceleration stage characteristic acceleration a+ obtained as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a positive half-cycle of the step cycle, and a braking stage characteristic acceleration a−
obtained as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a negative half-cycle of the step cycle,wherein the method further comprises displaying, in a display unit, the traveled route of the moving person, and guiding the moving person via step by step navigation using the traveled route. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for displaying progress of a moving person, comprising:
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a display unit; and a measuring unit that comprises an acceleration sensor, an analysis and diagnostic unit, and a magnetometer, wherein the acceleration sensor is configured to measure acceleration values of cyclic motion of locomotion of the moving person, wherein the magnetometer is configured to obtain compass readings of the moving person, wherein the analysis and diagnostic unit is configured to calculate step data as a function of step-cycle-specific acceleration stage characteristic accelerations a+ and braking stage characteristic accelerations a−
obtained from acceleration values measured by the acceleration sensor during a step cycle,wherein the analysis and diagnostic unit is configured to determine the step data as a step-cycle-specific acceleration stage characteristic acceleration a+ as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a positive half-cycle of the step cycle, and a braking stage characteristic acceleration a−
as a mean value of a digitally filtered acceleration sensor signal aout over a time selected during a negative half-cycle of the step cycle,wherein the analysis and diagnostic unit is configured to determine a traveled route of the moving person by means of the step data and the compass readings, wherein the display unit is configured to display the traveled route of the moving person, and to guide the moving person via step by step navigation using the traveled route. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification