Sensor-based Tracking of Variable Locomotion
First Claim
1. A method of measuring movement of a person, the method comprising the computer implemented steps of:
- continuously measuring acceleration values associated with the locomotion of a person with an acceleration sensor;
determining with a processing means, for a step of the person, a type of locomotion by analyzing a temporal sequence of acceleration values of a portion of the acceleration values corresponding to the step;
determining with said processing means, for the step, a swing time and at least one characterizing acceleration value from the acceleration values; and
determining with said processing means a step length based on the type of locomotion, the swing time and the at least one characterizing acceleration value.
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Abstract
The invention relates to a method, device and system for the sensor-based tracking of a variable locomotion, and, in particular, to a method, device and system for acceleration-sensor based measurement of the highly erratic movement of a team sports player. The method comprises continuously measuring acceleration values corresponding to the locomotion of a person. For a single step of the person, a type of locomotion is determined by analyzing a temporal sequence of acceleration values of a portion of the acceleration values corresponding to the single step. Further, a swing time and at least one characterizing acceleration value are determined from the acceleration values for the single step and the step length is determined based on the type of locomotion, the swing time and the at least one characterizing acceleration value.
14 Citations
15 Claims
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1. A method of measuring movement of a person, the method comprising the computer implemented steps of:
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continuously measuring acceleration values associated with the locomotion of a person with an acceleration sensor; determining with a processing means, for a step of the person, a type of locomotion by analyzing a temporal sequence of acceleration values of a portion of the acceleration values corresponding to the step; determining with said processing means, for the step, a swing time and at least one characterizing acceleration value from the acceleration values; and determining with said processing means a step length based on the type of locomotion, the swing time and the at least one characterizing acceleration value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A measuring device for measuring movement of a person, the device comprising:
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at least one acceleration sensor for continuously measuring acceleration values associated with the locomotion of a person in at least two dimensions; a storing means for storing a plurality of parameter sets, each set assigned to a type of locomotion; and a processing means for assigning a type of locomotion to a step of the person by analyzing a temporal sequence of acceleration values of a portion of the acceleration values corresponding to the step;
determining, for the step, a swing time and at least one characterizing acceleration value from the acceleration values; and
determining a step length based on the swing time, the at least one characterizing acceleration value and the type of locomotion. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification