This device adopts a stepping type dynamo extrusion loses the liquid control system liquid intravenous drop velocity, adoption infrared rays sensor, transducer computing intravenous drop velocity, respond quick, the sensitivity is good.It was detailed to introduced the single the control system of dynamo that a machine constitute, and pass to expand 8255 complete the keyboard with the design that display the telephone.The adoption fuzzy control computings the intravenous drop the velocity, joining together actual circumstance, computing result stabilization, precision.Pass chips RS-232s constitute with place of honor machine the lord from the control network, unifying the control.The union has the warn reports to the police the function, using the vivid convenience.
Keyword:89 C51s, the type of stepping, the sensor, transducer of infrared rays,8255, fuzzy control, RS-232