What's in a set of surveying and mapping gps?

Three-dimensional laser scanner, level, theodolite, total station, GPS receiver, GPS handset, super station instrument, gyroscope, orthogonal instrument, steel ruler, stopwatch, etc.

Nowadays, in photogrammetry, cameras have also become instruments used in surveying and mapping.

GPS mapping is mainly based on the positioning information provided by several major satellite positioning systems in the sky.

The process of calculating the current point coordinate information after receiving it by the receiver on land is summarized by me according to my own understanding. The process is very simple. As long as we have a GPS receiver and related operating software, we can collect data for GPS measurement.