Force Evaluating Device and a Force Evaluating Method for Determining Balance Characteristics
First Claim
1. A force evaluating device for determining and evaluating forces acting on force inducers in a time-resolved manner, comprising:
- at least three force inducers arranged in a plane (force inducer plane), each force inducer having a signal input and a signal output;
a rigid walkable support plate coupled to the force inducers, the force inducers being arranged at a side of and adjacent to the support plate, the forces from a compressive force acting on the support plate resulting at the force inducers being detected in the time-resolved manner; and
an evaluation unit connected to the force inducers at the signal output side, the evaluation unit including a power spectrum calculation unit, the power spectrum calculation unit at least one of (i) calculating a power spectrum of a total signal formed from a sum of the output signals of at least one of the force inducers and (ii) having a differentiation unit calculating a time derivation of the total signal and further parameters derived therefrom.
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Abstract
The present invention relates to a force evaluating device with which forces can be determined and evaluated in a time-resolved manner. It has at least three force inducers which are arranged in a plane and which are coupled to a support plate a person can walk on. The compressive force acting on the force inducers via the support plate can be detected in a time-resolved manner by means of the force inducers. The power spectrum of the forces is calculated from the detected measured values by means of an evaluation unit. Furthermore, the determined force/time relationship by time can be differentiated from which further characteristics of the acting forces can be determined. The areas of application of the invention are mainly the field of health care and the field of rehabilitation measures and the field of the objectification of the influence of alcohol and drugs on human reaction capabilities.
46 Citations
72 Claims
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1. A force evaluating device for determining and evaluating forces acting on force inducers in a time-resolved manner, comprising:
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at least three force inducers arranged in a plane (force inducer plane), each force inducer having a signal input and a signal output; a rigid walkable support plate coupled to the force inducers, the force inducers being arranged at a side of and adjacent to the support plate, the forces from a compressive force acting on the support plate resulting at the force inducers being detected in the time-resolved manner; and an evaluation unit connected to the force inducers at the signal output side, the evaluation unit including a power spectrum calculation unit, the power spectrum calculation unit at least one of (i) calculating a power spectrum of a total signal formed from a sum of the output signals of at least one of the force inducers and (ii) having a differentiation unit calculating a time derivation of the total signal and further parameters derived therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A force evaluating method with which forces acting on force inducers is determined and evaluated in a time-resolved manner, comprising:
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arranging at least three force inducers comprising a signal input and a signal output in a plane (force inducer plane) at a side of and adjacent to a rigid, walkable support plate and coupled to the support plate such that the forces from a compressive force acting on the support plate resulting at the force inducers are detected by the force inducers in a time-resolved manner; exposing the support plate to a pressure on a remote side from the force inducers over a predetermined time interval; forming a time-resolved total signal for the time interval from a sum of the output signals of at least one of the force inducers resulting from the pressure exertion at the force inducers; and calculating at least one of (i) the power spectrum of the total signal and (ii) the time derivation of the total signal and further characteristics derived therefrom. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification