POSITION MEASURING DEVICE HAVING DISTANCE AND ANGLE MEASURING FUNCTION

摘要

PURPOSE: A position measuring device with distance and angle measuring functions is provided to calculate the relative position of a mobile robot to a wall surface even if the device does not receive the position information of the mobile robot from a docking station. CONSTITUTION: A position measuring device(100) with distance and angle measuring functions comprises a sensor unit(110), first and second relative position calculation units(120,140), and an image acquisition unit(130). The sensor unit has multiple sensors(111,112) separated from each other. The sensors transmit signals to a wall surface and receive the signals reflected from the wall surface. The first relative position calculation unit calculates an angle between a first distance from the sensor points to the wall surface and the wall surface. The image acquisition unit photographs an artificial mark installed on the wall surface. The second relative position calculation unit calculates a second distance from the artificial mart to the wall surface using the first distance.