Patent ID: 9046361
Filing Date: 2015-06-02
Classification: G01C

Abstract:
1. A target point recognition method for an automatic search of target points in a surveying environment in advance of a precise measurement of these points, wherein an angle to the target points is measured with a surveying instrument, the surveying instrument comprising means for measuring angles, a camera and processing means for data storing and controlling the following steps in an automated manner after starting the search, the method comprising: a scanning procedure including: a capturing procedure including: storing the target points together with their angle in a data base; and displaying the overall image together with marks for indicating a position of the target points detected within the scanning procedure and the capturing procedure in the overall image; wherein the electromagnetic radiation is emitted in form of a laser fan to illuminate targets; the predetermined search criteria at least provide to detect a target representing a predetermined structure or pattern; the scanning procedure and the capturing procedure are, as sub-procedures, part of a recognition process for detecting the target points; and the target points are displayed by using different marks captured by different sub-procedures of the recognition process with which the target point has been recognized.