Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sound identifying method for geographic information and its application in navigation system

A speech recognition, geographic information technology, applied in speech recognition, navigation, speech analysis and other directions, can solve the problem of low recognition rate

Inactive Publication Date: 2005-09-28
NANJING NORMAL UNIVERSITY
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art, aiming at the low recognition rate of current Chinese speech recognition software in the noise environment, the existing speech recognition module is the basic tool for speech data collection and recognition, For the random noisy character strings obtained from it, using the existing geographic information name strings, a similar matching index that reflects the degree of approximation of details exists between them under noise damage, and provides a voice recognition of geographic information method and apply it to the navigation system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sound identifying method for geographic information and its application in navigation system
  • Sound identifying method for geographic information and its application in navigation system
  • Sound identifying method for geographic information and its application in navigation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] Taking the traffic navigation system under the support of the electronic map as an example, by collecting the urban electronic map database, including the spatial data and place name information of the urban map (especially including urban traffic), the navigation syntax-keyword rule base is set up, and the voice system of the present invention is used. The recognition method is to convert the keyword string of each syntax into a pinyin string as the source string, and match it with the target string of voice input to obtain a set of similar matching degree values, and take the pinyin character corresponding to the largest value The string is used as a keyword, and based on this, the noisy geographical information name string is intercepted. Take the geographical information name string from the electronic map database and convert it into a pinyin string as the source string, and use the noisy geographical information name string as the target string to calculate the sim...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A speech recognition method of geographic data includes utilizing the existed speech recognition module and its calling interface to obtain recognized random character string and to convert it to be phonetic character string, converting geographic data character string picked up form geographic databank to be phonetic character string, calculating degree of matching for the two and using source string with most close degree of matching as result character string i.e geographic data name. The method can be applied in navigation system to raise its intelligent level.

Description

technical field [0001] The invention relates to a speech recognition method, in particular to a speech recognition method for geographic information and its application in a navigation system. Background technique [0002] Speech recognition technology is a high technology that allows machines to convert voice signals into corresponding text or commands through the process of recognition and understanding. It can provide intelligent human-computer interaction interface services for electronic maps and geographic information system (GIS) applications. Geographic information has the characteristics of wide application. For a geographic information product, there are usually many users and frequent changes. The external environment is noisy and random. In addition, Chinese characters are generally used for place name information in our country, and sometimes there is no semantic connection between characters. It directly affects the application of speech re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C21/00G10L15/20G10L15/30G10L21/02
Inventor 张亮龙毅
Owner NANJING NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com