The Research of Precision Planter Sowing Depth Control System Based on PLC
In order to solve the existing problems of traditional PC and MCU control system in the control process , appli-cation and implementation of the PLC and touch screen in the precision planter depth control system were studied .The main contents include the working principle of the control system , the composition of the hardware system and the design of software system .Also there was a detailed description of the PLC software programming , touch screen software pro-gramming and the realization of the PID algorithm .Practical application shows that the system is capable of stable opera-tion and high reliability , it is easy to operate and maintenance , the promote value and the use value are relatively high .
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