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Control method of speech soft switch and its application in geographic information system

A control method and soft switch technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of low efficiency, heavy identification and filtering tasks, etc., and achieve the effect of low system load

Active Publication Date: 2009-03-11
SUZHOU MAIPU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of heavy recognition and filtering tasks and low efficiency brought by the noise environment to the voice application system, and to establish an application type that can quickly determine whether the input voice is a valid command voice, and at the same time determine the corresponding command Control method of speech soft switch with range and its application in geographic information system

Method used

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  • Control method of speech soft switch and its application in geographic information system
  • Control method of speech soft switch and its application in geographic information system
  • Control method of speech soft switch and its application in geographic information system

Examples

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Effect test

example 1

[0052] ●Example 1: The input is external noise

[0053] The voice geographic information system receives and recognizes the noisy character string V: "En'er Le Li's color text". System processing procedure: at first V and closed key word character string collection are done character string search operation, obtain the similar matching degree maximum of V and closed key word " setting ", its value MaxMb=0.5, and MaxMb Figure 4 .

example 2

[0054] ●Example 2: The input has internal noise

[0055] The user voice inputs "command amplified", and the voice geographic information system accepts the voice and recognizes the noisy character string V: "Minister Fang Dawei". System processing process: 1. at first V and closed key word character string collection are done string search operation, obtain the similarity matching degree of V and closed key word " order " maximum, its value MaxMb=1, and MaxMb>M, so in V The closed keyword that is included is "command"; 2. the string search operation is performed on V and the disconnected keyword string set, and the similarity matching degree between V and the disconnected keyword "Complete" is the largest, and its value MaxMd=0.75, and MaxMd>M, so "Complete" is the disconnected keyword contained in V; ③ Extract the normal command sentence string T in V as "Fang Da", and use the set of command strings corresponding to T and the closed keyword "command" as characters String sea...

example 3

[0056] ●Example 3: The input has internal noise

[0057]The user voice inputs "set network connection is complete", the voice geographic information system accepts the voice and recognizes the noisy character string V: "I set the network connection force", because the environment where the system is located is relatively noisy, V contains more A string of meaningless noise. System processing process: 1. at first do string search operation with V and closed key word string set and obtain the similar matching degree of V and closed key word " setting " maximum, its value MaxMb=1, and MaxMb>M, so contain in V The closing key word of is "setting"; ② do a string search operation on the set of V and the breaking key word string to get the maximum similarity matching degree between V and the breaking key word "Complete", its value MaxMd=0.75, and MaxMd> M, so "finish" is the disconnected keyword contained in V; ③ extract the normal command string T in V as "network connection", and ...

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Abstract

The invention discloses a control method of a speech soft switch, which is characterized in that a specific closed keyword and a specific broken keyword are respectively added before and after a speech command according to a certain rule on the basis of the prior commercial speech input module so that a soft switch control mechanism capable of rapidly shielding outside noise and being switched to different latter command branches is established and the switch function of speech input in software environment is realized. The invention has the following processing process: a character string of a sentence segment with noise is identified and obtained through the speech input module, and a limited number of closed keywords and broken keywords in an established switch keyword library are utilized, matched and calculated; if the character string of a sentence segment with noise comprises a closed keyword, a corresponding command operation is started and executed according to the closed keyword, or else the character string of a sentence segment with noise is judged to be a noise character string, and no command operation is executed. The invention is easy and practical and can improve the intellectualized and humanized degree of a geographic information system in the aspect of the speech input.

Description

technical field [0001] The invention relates to a voice processing and control method, in particular to a voice control method through Chinese voice analysis technology, fuzzy matching technology and geographic information system technology. Background technique [0002] Speech technology is an artificial intelligence information technology developed with digital signal processing technology in the 1960s. Its application in computer software systems has the advantages of easy grasp, convenient operation, and high degree of intelligence. At present, voice technology has transitioned from an experimental system to a practical product. Many related companies, research institutes, and colleges and universities at home and abroad have invested a lot of manpower, material resources, and financial resources in technological innovation and system research and development. IBM, Microsoft, Nuance, AT&&T, And my country's Tsinghua University, Chinese Academy of Sciences, University of S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/20
Inventor 龙毅胡雷地张翎
Owner SUZHOU MAIPU INFORMATION TECH
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