Patent ID: 8467963
Filing Date: 2013-06-18
Classification: G01C,G01S

Abstract:
1. A map building system, comprising: at least two distance sensing units, installed in a movable electronic apparatus, for sensing a distance between the movable electronic apparatus and at least an obstacle so as to generate at least two distance parameters; an inertial sensing unit, installed in the movable electronic apparatus, for detecting a displacement for the movable electronic apparatus so as to generate at least a displacement parameter; a parameter processing unit, coupled to the distance sensing units and the inertial sensing unit, for calculating an area map according to the distance parameter and the displacement parameter; and a display unit, installed in the movable electronic apparatus, for displaying the area map, wherein the inertial sensing unit comprises a multi-dimensional accelerator and a multi-dimensional gyroscope; and wherein the inertial sensing unit senses a tilt angle for the movable electronic apparatus, and the parameter processing unit uses the tilt angle to revise the at least two distance parameters.