Method and system for generating traffic information tile map
A traffic information and tile map technology, applied in the field of information, can solve the problems of small amount of traffic information, less calculation time, and long time consumption of tile map, so as to reduce the calculation time, reduce the overall time, and improve the efficiency. Effect
Active Publication Date: 2018-09-14
HANGZHOU ZCITS TECH
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Problems solved by technology
[0004] However, in the current technology, due to the equal size of each divided tile map, the amount of traffic information in each tile map is not the same, and the amount of traffic information in some tile maps is very large, which requires a long Time calculation can only be determined, and the amount of traffic information in some tiles is small, and the time required for calculation is also less, and the amount of traffic information in each tile is calculated before it can be superimposed on the local basic GIS map Then provide it to the user, it takes a long time and the efficiency is relatively low
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[0050] see figure 1 , figure 1 It is a flow chart of a method for generating a traffic information tile map provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0051] Step S101, obtaining road network information data, and creating a road network information table corresponding to the road network information data;
[0052] Concretely, obtain described road network information data from GIS (Geographic Information System, Geographic Information System) service platform, described road network information data comprises the geographical position information of each road section; Create and described road in the HBASE database of Hadoop platform The road network information table corresponding to the network information data, the Hadoop platform is built on the server of the geographic information system GIS service platform. The road network information table includes: road section number, road section name, starting and end...
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The invention discloses a method and a system for generating a traffic information tiled map. The method comprises the following steps: acquiring road network information data and traffic information data; determining a relation between a sensing device and a road section; reading a base map of a target area map; normalizing the current traffic information data; dividing the map with the zoom level of n into a plurality of rectangular blocks, calculating the updating complexity of the current traffic information data in each rectangular block, and adjusting the updating complexity of the current traffic information data in each rectangular block to be identical to obtain a self-adaptive rectangular block division result; allocating different self-adaptive rectangular blocks onto different computer nodes to calculate the current traffic information data, generating a map block coating, rendering the map block coating to the corresponding base map, and generating a map block including the current traffic information data; merging all map blocks to generate the tiled map. By adopting the technical scheme, the time for generating the tiled map can be reduced, and the efficiency can be improved.
Description
technical field [0001] The invention relates to the field of information technology, in particular to a method and system for generating a traffic information tile map. Background technique [0002] At present, the network map is more and more closely related to people's work and life, and its functions such as route query and vehicle navigation are widely used in daily life. ITS (Intelligent Transportation System, Intelligent Transportation System) is a newly developed traffic management system. GIS (Geographic Information System, Geographic Information System), GPS (Global Positioning System, Global Positioning System) theory and technology will be integrated into this system together to provide a digital platform for ITS. ITS based on GIS and GPS can provide real-time dynamic traffic information services for road users, improve travel modes, and provide control reference information for road managers, effectively improving the traffic capacity and safety of existing road...
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IPC IPC(8): G06F17/30G06T11/00
CPCG06F16/29
Inventor 宋冠弢张登
Owner HANGZHOU ZCITS TECH