ABSTRACT
In actual industrial production ,the traditional contact-type length measures the method, the meeting is worn and torn. Because of machinery ,such reasons as the dust ,etc, influence the normal work of the system. Direct against this insufficient this text Israel 8051 chips in the MCS-51 series one-chip computer are cores, design a kind of new-type length measuring apparatus. Length is measured , the data show , reporting to the police ,timing ,wait for the function.
Have with low costs, mall, hardware circuit simple, the function is strong, the high characteristic of dependability .In addition application keyboard, LED display, make whole numeration of device , show, control and accomplish without any letup, it is high to form the integrated level, it is reliable to run, operate the intelligent control system of the security.
Keywords: length measures Speed measures Don’t keep in touch 8051one-chip computer Photoelectric sensor