Automatic generation method for road network grid digital map based on GPS positioning
A GPS positioning and road network technology, applied in the field of automatic generation of road network raster digital maps based on GPS positioning, can solve the problems of time lag, long working period, high cost, etc., to meet application needs, convenient acquisition, and avoid lag Effect
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[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.
[0023] Implement the present invention to automatically generate the road network raster digital map as an example (the computer processing part adopts Microsoft VisualStudio 2005 compiling environment to realize) with the automobile driving track data collected on the part road network of Jilin City, Jilin City, Jilin Province, and its concrete process is divided into as follows Four modules (such as figure 1 shown):
[0024] 1. The data acquisition center receives the car driving trajectory data sent by the vehicle-mounted GPS device at a period of 5 seconds. The d...
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