Human dummy system for evaluating comfort of seat
First Claim
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1. A human dummy system for evaluating comfort of a seat, comprising:
- sensor units attached to respective joints of a human dummy and configured to detect angles of the respective joints; and
a data processing unit configured to determine relative locations of respective joints on a basis of angles of adjacent joints and distances therebetween, and determine an absolute location of a specific joint from a reference location by using the relative locations of the respective joints and coordinate system transformation between the respective joints of the human dummy;
wherein the coordinate system transformation is performed through homogeneous transformation matrix operations using one or more of a translation matrix and a rotation matrix;
wherein the relative locations of the respective joints are compensated by uniformly allocating error among coordinate points of respective joints; and
wherein the error is determined by comparing coordinate values of the absolute locations of the target joint based on the reference location, the absolute locations acquired along at least two different routes connecting the reference location and the target joint in common.
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Abstract
A human dummy system for evaluating the comfort of a seat comfort includes sensor units and a data processing unit. The sensor units are attached to the relevant joints of a human dummy, and detect the angles of the relevant joints. The data processing unit calculates information about relative locations of adjacent joints on the basis of the information about the angles of the relevant joints, and calculates the absolute location of a specific joint through coordinate system transformation between the information about relative locations and the joints of the human dummy.
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12 Claims
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1. A human dummy system for evaluating comfort of a seat, comprising:
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sensor units attached to respective joints of a human dummy and configured to detect angles of the respective joints; and a data processing unit configured to determine relative locations of respective joints on a basis of angles of adjacent joints and distances therebetween, and determine an absolute location of a specific joint from a reference location by using the relative locations of the respective joints and coordinate system transformation between the respective joints of the human dummy; wherein the coordinate system transformation is performed through homogeneous transformation matrix operations using one or more of a translation matrix and a rotation matrix; wherein the relative locations of the respective joints are compensated by uniformly allocating error among coordinate points of respective joints; and wherein the error is determined by comparing coordinate values of the absolute locations of the target joint based on the reference location, the absolute locations acquired along at least two different routes connecting the reference location and the target joint in common. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification