Method and device for discovering suspected newly-added roads

A road and grid technology, applied in the field of discovery of suspected new roads, can solve problems such as high cost

Active Publication Date: 2014-07-02
CENNAVI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method has improved the current situation of the map, the cost is still very high

Method used

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  • Method and device for discovering suspected newly-added roads
  • Method and device for discovering suspected newly-added roads
  • Method and device for discovering suspected newly-added roads

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] The embodiment of the present invention provides a method for discovering suspected newly added roads, such as figure 1 Shown, including:

[0032] S101. Receive FCD (Floating Car Data) records of the merged area to be analyzed in a preset time interval.

[0033] FCD is a new type of traffic information detection technology. Its core is to use the location and time information collected by floating vehicles (mainly urban taxis and priv...

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Abstract

The embodiment of the invention provides a method and a device for discovering suspected newly-added roads, and relates to the field of dynamic traffic information service. Newly-added roads can be timely and accurately discovered, the up-to-date state of a map is improved, and the updating cost of the map is lowered. The method comprises the following steps of: acquiring the floating vehicle data records of an area to be analyzed within a preset time interval; dividing the area to be analyzed into a plurality of grids with the same size; acquiring the grid density of each grid; screening abnormal grids according to the grid densities; acquiring highly related grids by analyzing trend relevance between the abnormal grids, and acquiring a grid connectivity graph according to a spatial position relationship between the highly related grids; and acquiring a grid tree according to the grid connectivity graph to obtain the shape of the suspended newly-added roads according to the grid tree. The embodiment of the invention is used for discovering the suspected newly-added roads.

Description

Technical field [0001] The invention relates to the field of dynamic traffic information services, in particular to a method and device for discovering suspected newly added roads. Background technique [0002] With the rapid urbanization construction, the timely and accurate discovery of new roads, and rapid update in the map, can make people's understanding of travel routes more convenient and clear. [0003] At present, it is generally found that new roads are realized through field data collection, but the current status of field data collection (the shorter the map update cycle, the stronger the current status) is relatively poor. For example, the map released this year is based on the data collected by the field industry last year or the year before. In this way, although the new version of the map is used, it reflects the previous road conditions, which will cause inconvenience to people's travel. . [0004] In the existing field data collection process, if a carpet-style co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/32
Inventor 段克敏张维成蒋晟陈驭龙王宇轩
Owner CENNAVI TECH
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