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A POI data retrieval method and device

A data retrieval and data technology, applied in the database field, can solve the problem of low POI data efficiency and achieve the effect of improving efficiency

Active Publication Date: 2020-07-28
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above two databases are less efficient in querying POI data

Method used

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  • A POI data retrieval method and device
  • A POI data retrieval method and device
  • A POI data retrieval method and device

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Embodiment Construction

[0038] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. The scope of protection of the present invention should be defined by the appended claims.

[0039] Each POI contains four aspects of information: name, category, longitude, and latitude. The categories are divided into major catego...

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Abstract

Embodiments of the invention provide a POI data retrieval method and apparatus, and relate to the field of databases. The method comprises the steps of receiving position information of a POI input by a user; according to the position information, input by the user, of the POI and a preset query distance, executing a query in Mongodb; and according to a query result of the Mongodb, establishing an index in Lucene, and performing full text retrieval to obtain a target POI. According to the method provided by the embodiment of the invention, the support of the Mongodb to the spatial data query and the support of the Lucene to the full text retrieval are fully applied, and the advantages of the Mongodb and the Lucene are combined, so that the POI data query efficiency is improved.

Description

technical field [0001] The invention relates to the field of databases, in particular to a POI data retrieval method and device. Background technique [0002] At present, more and more users query POI (Point of Interest, point of interest) in the electronic map, and the POI data stored in the database provides data support for the POI query. [0003] In the prior art, the POI data of the parent library is stored in an Oracle database that supports mass storage, and operations such as query, deletion, and backup of the POI data are performed by establishing an index. It is also possible to store the POI data of the parent database in the Mangodb database, and only execute the query operation on the POI data in the Mangodb database. [0004] However, the efficiency of querying POI data in the above two databases is low. Contents of the invention [0005] The embodiment of the present invention provides a POI data retrieval method and device, which improves the efficiency o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
CPCG06F16/29
Inventor 史川
Owner NAVINFO