Evaluation of any predeterminable collisions between any sites on the bodies of living beings and objects of any shape

Abstract

The invention relates to evaluating a predetermined collision between a predetermined site (2) on the body of a living being and a predetermined object (1), comprising the steps of a) providing a 3D model of the predetermined object (1) on an arithmetic logic unit; b) providing a polygon mesh model of the predetermined site (2) on the body on an arithmetic logic unit, wherein each field Fij of the mesh of the polygon mesh model is square, and a stress-deformation characteristic curve (s) is predetermined for each field Fij of the mesh; c) aligning the provided 3D model and the provided polygon mesh model in a virtual space by means of the arithmetic logic unit, wherein the arrangement of the two models relative to one another corresponds to the relative arrangement of the object and the site on the body during the predetermined collision; d) gradually shifting the 3D model and the polygon mesh model into one another in a collision direction (K) determined by the predetermined collision, in the virtual space, by means of the arithmetic logic unit, wherein an impression image (AB) having impression pixels Pij is generated for each step k of the gradual shifting process and a respective pixel value Pw of the impression pixels Pij represents an impression depth of the 3D model in a field Fij of the mesh of the polygon mesh model that is assigned to the respective impression pixel Pij; e) determining the respective stress values for the impression pixels Pij for the or at least one of the impression images (AB, AB′, AB″) according to the stress-deformation characteristic curve (s) assigned to the corresponding field Fij and the respective pixel value Pw; f) calculating a force F acting on the predetermined site (2) on the body by adding up the products of the stress values determined for the impression pixels Pij with the surface areas Aij of the assigned fields Fij of the mesh, for the step k corresponding to the at least one impression image (AB, AB′, AB″); in order to rapidly and accurately evaluate any predeterminable collisions between sites on the bodies of living beings and any objects, in particular with regard to a risk of injury to an operator, for example.

Dependencies are inferred from the claim text.