Design and Calculation Method of GIS High Precision Target Point Collector

Not for the use of satellite positioning or personnel is difficult to reach a collection of coordinate information of the target, this paper uses differential positioning module receives CORS network difference information can be obtained with high precision reference point coordinates, using a visible laser ranging module, electronic compass respectively target distance, azimuth and elevation, obtain high precision coordinates of target through calculation, only one measurement can obtain the coordinate of the target, reducing the difficulty of collecting outdoor GIS information, and can shoot the target site to upload, and automatically records the photos with the target coordinates and matching. The equipment has the advantages of low cost, high positioning accuracy, small size, low power consumption, easy to carry, simple development of the two time, compatible with data acquisition, etc.