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Vehicle navigation POI (Point of Interest) search engine based on internetwork word segmentation idea

A search engine and vehicle navigation technology, applied in road network navigators, special data processing applications, instruments, etc., can solve the problems of single POI query function and can not meet user needs, and achieve the effect of reducing query input and accurate query results.

Inactive Publication Date: 2010-08-04
向阳同行投资咨询(武汉)有限公司
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AI Technical Summary

Problems solved by technology

However, the POI query function of the current car navigation is relatively simple, which cannot meet the needs of users.

Method used

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  • Vehicle navigation POI (Point of Interest) search engine based on internetwork word segmentation idea
  • Vehicle navigation POI (Point of Interest) search engine based on internetwork word segmentation idea
  • Vehicle navigation POI (Point of Interest) search engine based on internetwork word segmentation idea

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Embodiment Construction

[0012] The car navigation POI search engine (hereinafter referred to as POI search engine) based on the idea of ​​Internet word segmentation is realized by referring to the Internet search engine and Chinese and English word segmentation technology. Although the POI search engine borrows from Internet search engines and Chinese and English word segmentation technology, there are still many differences. First of all, the original data of POI comes from data vendors, so it cannot have the ability to capture and analyze in real time. The data is generated once and not dynamically updated; secondly, POI search engines run on embedded devices, while Internet search engines run on On a large server, the POI search engine is far inferior to the Internet search engine in terms of machine performance; in addition, the POI search engine data source is the data file stored on the navigator, rather than using a large database like the Internet search engine. Generally speaking, POI search...

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Abstract

The invention provides a vehicle navigation POI (Point of Interest) search engine based on an internetwork word segmentation idea, comprising the following steps of: (1) carrying out word segmentation treatment on a POI name in POI original data; (2) generating information index of the POI search engine according to a word segmentation result; and (3) inquiring the POI name according to the information index of the POI search engine. The invention can provide queries of characters and pinyin and provide the functions of prompting association when a query is input, previewing the number of search results, automatically correcting a misinput and inquiring the multiple times of inputs in combination.

Description

technical field [0001] The invention relates to a POI (Point of Interest, point of interest) query system for vehicle navigation. The system is based on the word segmentation idea of ​​an Internet search engine. Background technique [0002] Since the emergence of web-based search in 1994, Internet search engines have developed greatly, and now Internet search engines have become very important network navigation service tools on the Internet. Internet search engines collect resources and information on the Internet, discover new websites and web pages, and store corresponding copies of information after crawling and analyzing them. On this basis, further understand, extract, organize and process information, and provide users with retrieval services, so as to achieve the purpose of information navigation. The Internet search engine can provide functions such as text and pinyin query, associative prompts during query input, preview of the number of query results according t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G01C21/34
Inventor 朱敦尧党魁
Owner 向阳同行投资咨询(武汉)有限公司
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