Three-dimensional geographic information acquisition system

The invention discloses a three-dimensional geographic information acquisition system. The system comprises a geographic information public server-side and a mobile measurement terminal; the geographic information public server-side provides the support for a mobile measurement terminal, is responsible for receiving picture and posture information acquired by the terminal to perform the construction and update operation of a three-dimensional model; the mobile measurement terminal is responsible for receiving and displaying the three-dimensional landscape data transmitted by the cloud side, an enhanced realistic display way is used for performing fusion display; and meanwhile, the factor-oriented geographic entity three-dimensional information acquisition work can be performed based on the terminal multisensory. The system realizes the fast, low-cost and efficient update of the disperse geographic entity change, effectively reduces the acquisition cost of the multi-dimension geographic information, can be dir