Patent ID: 7774159
Filing Date: 2010-08-10
Classification: G01B

Abstract:
1. A 3D multi-degree of freedom detecting device, comprising: a first electromagnetic radiation source for generating first electromagnetic radiations, wherein the first electromagnetic radiation source is a point source; a second electromagnetic radiation source for generating second electromagnetic radiations, wherein the second electromagnetic radiation source is a point source; a first sensing module having a plurality of first sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles, the first sensing module including a first base that has a plurality of surfaces on different planes, and the first sensing elements being disposed on the surfaces of the first base; a second sensing module having a plurality of second sensing elements for receiving different radiation energies generated by the first electromagnetic radiations and the second electromagnetic radiations from different spatial angles, the second sensing module including a second base that has a plurality of surfaces on different planes, and the second sensing elements being disposed on the surfaces of the second base; wherein, the first sensing elements and the second sensing elements respectively receive different radiation energies from different spatial direction angles generated by the first electromagnetic radiation source relative to the first sensing elements and the second sensing elements, so that the values of a first spatial direction angle and a second spatial direction angle of the first electromagnetic radiation source respectively relative to the first sensing module and the second sensing module are obtained according to the magnitude relationship of the radiation energies received by the first sensing module and the second sensing module; a first spatial coordinate position of the first electromagnetic radiation source relative to the first sensing module and the second sensing module is obtained according to the matrix operation of a first spatial distance, a second spatial distance, and the first spatial direction angle and the second spatial direction angle of the first electromagnetic radiation source respectively relative to the first sensing module and the second sensing module; the first spatial distance and the second spatial distance are respectively from the first electromagnetic radiation source to the first sensing module and the second sensing module; wherein, the first sensing elements and the second sensing elements respectively receive different radiation energies from different spatial direction angles generated by the second electromagnetic radiation source relative to the first sensing elements and the second sensing elements, so that the values of a first spatial direction angle and a second spatial direction angle of the second electromagnetic radiation source respectively relative to the first sensing module and the second sensing module are obtained according to the magnitude relationship of the radiation energies received by the first sensing module and the second sensing module; a second spatial coordinate position of the second electromagnetic radiation source relative to the first sensing module and the second sensing module is obtained according to the matrix operation of a first spatial distance, a second spatial distance, and the first spatial direction angle and the second spatial direction angle of the second electromagnetic radiation source respectively relative to the first sensing module and the second sensing module; the first spatial distance and the second spatial distance are respectively from the second electromagnetic radiation source to the first sensing module and the second sensing module; wherein, a line extended from the first spatial coordinate position to the second spatial coordinate position generate a linear vector in space, and rotation information of the linear vector in space is obtained according to the vector variation of the linear vector in space.