Aiming at the problems of low data collection accuracy and poor controllability for the self-developed computer control three-tank experimental system

the hardware and software are optimized.The ADuCM360 chip is used as the control core on the hardware.The acquisition and control circuit board is designed as a four-layer circuit board

and the functional test of the relevant circuit are completed.The software used the method for realtime sampling of each module in unit time

which increases the amount of data collected.The valve control strategy is changed and the control characteristics are tested.Through data fitting of MATLAB

the controllability of the valve is analyzed.DMC-PID（dynamic matrix control combined with PID control） cascade control algorithm is used to verify the optimized system.The results show that stability and controllability of the optimized system are improved.