| 摘要 |
Surveying system for measuring the position of a measuring point (1) on the ground, the surveying system comprising a survey pole (10) with a body (13) having a pointer tip (12) for contacting the measuring point (1) and position giving means for making available the coordinative determination of a referenced position, being placed on the body (13) with a defined spatial relationship relative to the tip (12), determination means for repeatedly determining the referenced position of the position giving means and evaluation means (17) for deriving the position of the measuring point (1), wherein the survey pole (10) further comprises an inertial measuring unit (18) placed on the body (13) with a defined spatial relationship relative to the position giving means, the surveying system further comprises IMU-processing means for repeatedly determining inertial state data based on measurements taken by the inertial measuring unit, and the evaluation means (17) are further configured for feeding a predefined filter algorithm with the repeatedly determined referenced position and the repeatedly determined inertial state data and deriving therefrom referenced attitude data for the survey pole (10), taking into account the defined spatial relationship of the inertial measuring unit (18) relative to the position giving means, using a DDF within the predefined filter algorithm, and further using the referenced attitude data for deriving the position of the measuring point (1). |
