Design and Realization of an Intelligent Access Control System Based on Voice Recognition

The intelligent access system adopts the technology of the voice recognition that based on the SPCE061A single chip. The system hardware is made up of SPCE061A single chip, the power and gating circuit, the extended memorizer SPR4096, the voice input and output circuit. The key technologies are the application of the SPCE061A single chip on voice recognition and the design of the door control circuit. The system software is made up of the voice training module, the voice recognition module, the voice data processing module, the voice-playing module and the code of input and output module. The system completes the functions of collecting the voice data, distilling character, special voice recognition and voice playing in terms of initializing the system and the identification training. According to the voice recognition arithmetic theory, the pretreatment of voice signal, the character distilling and pattern matching is analyzed. The results of the experiments indicate that the system capability is steady and the identification is effective. The system can be applied in house or small office safety protection.