GIS (Geographic Information System) data acquisition method applied to unmanned vehicle

Abstract

The invention discloses a GIS (Geographic Information System) data acquisition method applied to an unmanned vehicle, which is suitable for dynamic update of GIS of the unmanned vehicle. The method comprises the following steps: obtaining point cloud data through a vehicle-mounted 3D (3-Dimensional) laser radar, and providing auxiliary information for the driving of the unmanned vehicle; and simultaneously setting corresponding parameters to extract geospatial data combined with the detection data of vehicle-mounted inertial navigation system and vehicle-mounted GPS (Global Positioning System), wherein the extraction of the geospatial data can be carried out in real time, so that the updating efficiency of geospatial data is greatly improved, and simultaneously the obtained geospatial data can provide helps for the autonomous running of the unmanned vehicle combined with powerful geospatial data processing function of GIS.

Description

technical field [0001] The invention relates to a GIS data acquisition method applied to unmanned vehicles. Background technique [0002] At present, the research on geographic information system in the field of unmanned vehicles mainly focuses on urban vehicle traffic, and there are few studies on GIS (geographic information system) data acquisition in complex wild environments. [0003] The geographic data provided by the current general-purpose geographic information system is mainly aimed at natural features, specifically describing the spatial characteristics and attribute characteristics of geographic entities, which is difficult to meet the application requirements of unmanned vehicles in the complex field environment. In addition to these basic attributes, unmanned vehicles also need specific spaces and objects such as traversability and concealability, and have higher requirements for data accuracy. [0004] The dynamic update capability of general GIS limits its a...

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Problems solved by technology

[0004] The dynamic update capability of general geographic information system limits its application in unmanned vehicle navigation

Geographic information is dynamically changing, but the geographic information system is affected by its cost and data update means, and its dynamic update capability is limited. The geographic information provided cannot meet the real-time requirements of unmanned vehicles.

Especially in the field conditions, due to the relatively long time interval of geographic information collection, the collected data is not fine enough, resulting in a certain gap between the existing geographic information data sources and the requirements of unmanned vehicles

Therefore, the help that geographic information can provide will be greatly restricted due to the lag and inapplicability of geographic information

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