The Research And Implementation On Speech Numerical Control Machine Tool

The speech recognition is a technology of turning speech signal to corresponding text or command by machines' recognition and comprehension. So far, it has been widely applied in many fields. Speech recognition technology is also useful in the aspect of machine tool's controlling. Speech numerical control machine tool can break the restrictions of manpower, place and equipments. It also gives prominence to be humanism and intelligentized. It shows its predominance in the scene of trade negotiation, which enhances the successful rate of negotiation greatly.This paper started from the speech recognition technology, firstly discussed the principles of speech recognition and wavelet threshold denoising technology, and secondly introduced the basic of numerical control processing programming simply. The system of speech numerical control machine tool was secondly designed by using the Microsoft Speech Application Software Development Kit Speech API 5.1(SAPI), OpenGL technology and Visual C++ 6.0 programming tool. The system is a rather original attempt and research in the field of numerical control, too. It aims at recognizing the basic orders, processing parameters and accessories' geometrical informations which are input by users' speech, using speech recognition technology. The system automatically generates the numerical control processing codes after analyzing and disposing, and dynamically simulates the processing at last. The emphasis of this paper was discussing the system's design plans and concrete implementation by aiming at three aspects, which included speech recognition, automatically processing programming and simulating processing.This paper had experimented to test the system's speech recognition rate in the laboratory and numerical control processing workshop. It was indicated from the experiments that the system of speech numerical control machine tool had preferable recognition effect under the laboratory environment, which could satisfy the needs of practical application, however, the recognition rate in the numerical control processing workshop which in the noise needed to strengthen. This paper had put forward the methods of improving the speech recognitioneffect, and designated the future research orientation of this system. It embodies the innovative revolution for the field of numerical control which is brought by speech recognition technology.