关键词:单片机控制;语音芯片;LED汉字显示;语音处理
Abstract
This paper introduces a Bus Automatic reporter system. It puts forward a design project of the hardware and the software of the voice control circuit with single-chip microcomputer. The design counts mostly the corner impulse of bus axle. And then the system compares the number with the former prepared to get the report time. So the outcome is made acerbate and automatically. AT89C51 counts external impulse in interruption processing program for CPU, and Voice chip inputs voice while the dot matrix LED circuit display character. ISD4004 recording data is stored by multiple store patent which store voice and frequency in statistic statement directly by nature, in order to offer high quality fidelity of voice. Comparing with the present system, the system has better pronunciation quality and stronger function. It is a very good device for buses. It’s changed thoroughly that traditional bus voice reporter system worked by driver’s manipulation. It is precise and on time, and be intervened by human in exiting, entering, automatic station reporting and the service language.
Key words:Single-chip microcomputer control,Voice chip,Chinese character LED display,Speech processing