A kind of land surveying and mapping equipment and surveying and mapping method based on gis technology
A technology of land and technology, which is applied in the field of land surveying and mapping equipment and surveying and mapping based on GIS technology, and can solve the problems that the accuracy of surveying needs to be improved and the efficiency of surveying and mapping is not high
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Embodiment 1
[0070] The embodiment of the present invention provides a land surveying and mapping device based on GIS technology, such as figure 1 shown, including:
[0071] The data collection module is used to collect the terrain data of the land to be detected based on GIS technology;
[0072] a data processing module for processing the terrain data to obtain surveying and mapping data;
[0073] The drawing module is used for drawing the topographic map of the land to be detected based on the surveying and mapping data.
[0074] In this embodiment, the terrain data includes landform feature data, altitude data, terrain relief data, and the like.
[0075] The beneficial effects of the above design scheme are: by collecting the terrain data of the land to be detected based on GIS technology, the accuracy and efficiency of data collection are improved, and by processing the terrain data, the surveying and mapping data are obtained, which ensures the reliability of the surveying and mappi...
Embodiment 2
[0077] On the basis of Embodiment 1, the embodiment of the present invention provides a land surveying and mapping device based on GIS technology, and the data collection module includes:
[0078] an image acquisition unit, configured to acquire a topographic image of the land to be detected, and acquire image information of heights and concavities of the topographic image;
[0079] The image analysis unit is used to analyze the image information to obtain preliminary topographic information of the land to be detected, and based on the preliminary topographic information, compile the land to be detected, generate specific identification points, and establish the mapping relationship between the identification points and their corresponding preliminary terrain information;
[0080] a terrain analysis unit, configured to perform feature extraction on the preliminary terrain information by using a preset terrain data analysis model based on the mapping relationship, obtain a plur...
Embodiment 3
[0093] On the basis of Embodiment 2, the embodiment of the present invention provides a land surveying and mapping device based on GIS technology, and the image acquisition unit includes:
[0094] The acquisition subunit is used to acquire a two-dimensional image and a depth image of the land to be detected, and project the two-dimensional image and the depth image into the same space to generate a three-dimensional image, which is the topographic image of the land to be detected ;
[0095] A generating subunit, configured to perform concave-convex curvature detection on the terrain image, and when it is determined that the concave-convex curvature is within a first preset range, perform weighted concave-convex measurement on the image range corresponding to the concave-convex curvature to obtain the image The concavity and convexity data of the range, and the image information of the high and low concavity and convexity of the topographic image is generated based on the conca...
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