Design of speech electronic speed odometer based on embedded system

Electronic speed odometer commonly used has a single way of transferring information or transfers blurry information at present, besides its real time performance is not high enough. To solve the problems, a kind of electronic speed odometer with speech function is designed using SPCE061A single chip as its controller, and Real-Time Operating System of MiniOS is used to improve reliability, the real time performance and accuracy. The paper is going to introduce the theory of electronic speed odometer including a kind of improved algorithm for speed, the technique of speech play and the design of hardware and software of the system. The experimental results of design turn out that the system realizes what we want well.