Principle And Application Research Of Speech Control Automatic Clothes Rack

Speech recognition is a technology that can change speech signals into correspondingcontrol orders. Speech recognition has been attached great importance by people as its wideapplication value and prospect. Using this technology can make our life much moreconvenient, so the development of reliable products has a vital significance.Firstly, this article introduces some elementary knowledge of speech recognition process,such as pre-process, three common methods of parameters extraction(Linear PredictionCoefficients/LPC, Linear Prediction Cepstrum Coefficient/LPCC, Mel Frequency CepstrumCoefficient/MFCC), four common methods of recognition(Dynamic Time Warping/DTW,Vector Quantization/VQ, Hidden Markov Model/HMM, Artificial Neural Networks/ANN)and post process.Secondly, use speech recognition chip RSC300/364as the control center, complete thehardware design work such as analysing requirement, choosing chip, making speechrecognition and relay circuit boards.Lastly, complete the software design work on the basis of the use requirement, and thendo testing work to the developed clothes rack. The result is the efficiency of recognitionreaches more than90%in silent environment, which shows that the system has a broadapplication prospect because of its low cost and simple structure.