This is the operation manual of Android APP of Engineering Information Surveying System. It introduces the installation, registration, login, main interface, device connection, status display area, device information interface, local map, cloud map, personal center, auxiliary functions, differential data source, new map, get map, map details, share, upload, rename, delete map, data management, import data, export data, add data, modify coordinate data, smooth collection, create copy, check parameters, coordinate conversion, projection, benchmark conversion, plane conversion, elevation fitting, point correction, verification, drawing space, measurement, layout, marking, toolbox and other functions.
