Abstract
This design take a machine AT89 C51s as the core, carrying out to the monitor and the control of the liquid intravenous drop speed. Make use of first red shoot the － to receive the machine outside to didou the intravenous drop- drop faces with is subjected to the liquid bottle in the liquid soon whether attain the warnning liquid to face the place is solid the hour collects the data. Use respectively two tread into the electrical engineering to carry on the control to the intravenous drop speed.Tread into the electrical engineering 1 lose the soft tube of the liquid tube to clip the head through a control to carry on to the intravenous drop speed thick adjust the design to request, tread into electrical engineering 2 pass the pulley control h2( didou arrive be be apart from by a bottom of liquid) of height, carry on to the intravenous drop speed further thin adjust to control by attain the accuracy.When keep the liquid bottle to face to arrive the warnning liquid to face the place in the liquid drive the machine of speaker to send out to report to the police the signal.Pass to expand 8155 complete the keyboard manifestation electric circuit.According to these complete but dependable hardware designs, use a set of special software method, carry out accurate control toward the liquid intravenous drop speed.
Keywords: AT89 C51s, the intravenous drop speed,red shoot outside- receive , step motor
