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Searching method with first letter of pinyin and intonation in navigation system and device thereof

A navigation system and pinyin technology, applied in the navigation field, can solve the problems of too many search results and reduce the accuracy of pinyin search, and achieve the effect of improving accuracy and avoiding too many search results

Inactive Publication Date: 2009-09-23
NAVINFO
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the process of realizing the present invention, it is found that the prior art has at least the following problems: since there are a large number of homophones in Chinese characters, that is, words with the same pronunciation, no matter whether you use the traditional full spelling search or the initial letter of the pinyin search, there will be As a result, too many search results are obtained, which makes users need to further filter the search results, thus reducing the accuracy of pinyin search

Method used

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  • Searching method with first letter of pinyin and intonation in navigation system and device thereof
  • Searching method with first letter of pinyin and intonation in navigation system and device thereof

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Embodiment Construction

[0028] First of all, in order to facilitate the understanding of the technical solution of this embodiment, the following technical terms appearing in the embodiment are explained:

[0029] Pinyin: According to the composition rules of Mandarin syllables, consonants and finals are quickly and continuously combined and tones are added to form a syllable. For example, the pinyin of "Beijing" is: beijing.

[0030] Pinyin tone: four tones of modern Chinese, including: Yinping (the first tone), Yangping (the second tone), the upper tone (the third tone) and the falling tone (the fourth tone), in the present embodiment, the number 1 can be used Represent: Yinping, numeral 2 expresses: Yangping, numeral 3 expresses: Shangsheng, numeral 4 expresses: Qusheng, certainly also can represent pinyin tone with other numeral, letter, or character string, does not limit pinyin in the present embodiment A specific representation of the tone.

[0031] In order to make the purpose, technical sol...

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Abstract

The invention provides a searching method with the first letter of pinyin and intonation in a navigation system and a device thereof, belonging to the technical field of navigation. The method comprises the following steps: firstly, respectively obtaining the pinyin of a Chinese character in a interest point name which is input by users to be searched and the intonation of the pinyin of the Chinese character; and then, according to the obtained pinyin of the Chinese character and intonation of the pinyin of the Chinese character, searching in a preset interest point database by matching with a string indice so as to obtain the Chinese character phrase of the interest point name which matches with the interest point name which is to be searched. By using the method with the pinyin and the intonation, a problem of excessive searching results caused by homophones is effectively reduced so as to improve the accuracy of pinyin search.

Description

technical field [0001] The invention belongs to the technical field of navigation, and in particular relates to a method and device for searching pinyin plus tone in a navigation system. Background technique [0002] At present, the navigation map data provided by electronic navigation map manufacturers contains a large number of POI (Point Of Interest) information, and general POI information includes gas stations, parking lots, hotels, fast food restaurants, banks, shopping malls, supermarkets and government There are hundreds of types of daily life information such as government agencies. Therefore, how to accurately and quickly retrieve points of interest in the navigation system has become the research direction that various electronic navigation map manufacturers are striving for. [0003] At present, there are many search methods for navigation systems on the market. Pinyin search is one of the most commonly used search methods. The pinyin search method includes the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/24
Inventor 朱大伟龚骁
Owner NAVINFO
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