Traditional Culture Encyclopedia - Photography and portraiture - New technologies and methods of data acquisition in gis

New technologies and methods of data acquisition in gis

Positioning equipment, digital equipment and data exchange. The new technical method of gis data acquisition is:

1. Positioning equipment: field survey: large flat panel, total station, GPS and mobile surveying and mapping system are characterized by high accuracy and low efficiency. The suitable scope is small-scale GIS data collection or local data update.

2. Digitization equipment: Digitizers, scanners and photogrammetry equipment are characterized by a wide range.

3. Data exchange: Aiming at the inefficiency caused by manual investigation of attribute information and complex data processing in GIS data collection, a digital collection method of GIS data based on AUTOCAD is proposed.