Title:
ROAD CODING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/078608
Kind Code:
A1
Abstract:
Provided are a road coding method and device. The method comprises: selecting a shape point from a road to be coded, wherein the shape point comprises a start point and an end point of the road to be coded; respectively converting latitude and longitude coordinates of the shape point in the road to be coded into numericalal strings using at least two preset hash functions; and generating a code of the road to be coded according to the numerical strings obtained through the conversion of various hash functions. It can be seen from the technical solution that in the present invention, the latitude and longitude coordinates of a shape point in a road to be coded are respectively converted into numerical strings using at least two hash functions, and a code of the road to be coded is generated according to each of the numerical strings. It can be seen that the code of the road generated using the road code generation method provided in the present solution is relatively stable, thereby reducing the possibility of a road matching failure in the prior art due to the fact that the code of the road has changed since a road data version has changed. The present solution improves the accuracy of road matching.
Inventors:
CHANG XIAOLE (CN)
ZHOU QI (CN)
ZHANG XIANGFEI (CN)
ZHOU QI (CN)
ZHANG XIANGFEI (CN)
Application Number:
PCT/CN2015/095094
Publication Date:
May 26, 2016
Filing Date:
November 20, 2015
Export Citation:
Assignee:
AUTONAVI SOFTWARE CO LTD (CN)
International Classes:
G06F17/30
Foreign References:
| CN102027520A | 2011-04-20 | |||
| CN101315419A | 2008-12-03 | |||
| CN102289464A | 2011-12-21 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
北京集佳知识产权代理有限公司 (CN)
北京集佳知识产权代理有限公司 (CN)
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