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Application of Speech Recognition in the Testing System of Electromagnetic Valve

Author: WangJing
Tutor: LiuHongYi
School: Northeastern University
Course: Mechanical and Electronic Engineering
Keywords: Fixture Speech recognition SPCE061A MCU Dynamic requirement for positive (DTW)
CLC: TN912.34
Type: Master's thesis
Year: 2008
Downloads: 42
Quote: 0
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Abstract


With the continuous development of science and technology , to meet human need speech recognition systems began to appear, which brings great convenience to human production and life . The research is based speech recognition system SPCE061A MCU solenoid valve test system . This article describes the development of speech recognition at home and abroad to discuss the structure and principle of the speech recognition system . Matlab software on the basis of voice signal processing technology , a predetermined voice signal processing, extracting the characteristic parameters of the signal . According to this paper, the design of the characteristics of the speech recognition system , to determine the dynamic time Reformed (DTW) method of speech recognition as a recognition method of the present system , and using the algorithm to the voice to be recognized for simulation, the correct recognition result . In this paper, design their own hardware solution for the speech recognition system . In the program under the guidance of the choice of the system hardware and the design of the circuit schematic : choice of 16-bit microcontrollers SPCE061A regulated DC power supply , audio input / output module circuit is designed as the core controller of system hardware , drive control circuit keyboard input module circuit including peripheral circuits. Utilize SCM SPCE061A provide integrated development environment IDE2.0.0 modular design method , the application of C and assembly language preparation of a speech recognition system control program , and completed the development of of voice training subroutine voice recognition subroutine . Analyzed for the detection of the solenoid valve to clip the recognition results of the speech recognition system , the design of the speech recognition test , to test the system performance under different background noise environment , respectively , and the generated identification error , the recognition results obtained meet the user's needs .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Electro-acoustic technology and speech signal processing > Speech Signal Processing > Speech Recognition and equipment
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