Lifting desk control system with imperceptible intelligent adjustment function and control method for imperceptible intelligent adjustment of lifting desk

A control method for imperceptible intelligent adjustment of a lifting desk, applied to the imperceptible control system module on the lifting desk, wherein the imperceptible control system module comprises a switching signal processing unit, an MCU arithmetic unit, an imperceptible operation PID adjustment unit and a PWM generator unit, the switching signal processing unit, the MCU arithmetic unit, the imperceptible operation PID adjustment unit and the PWM generator unit are electrically connected in sequence, the PWM generator unit is configured to control lifting drive of the lifting desk, the MCU arithmetic unit is electrically connected with a motor operation parameter calculation unit, and the motor operation parameter calculation unit is electrically connected with a rotor position sensor capture unit which is configured to capture a rotor position signal in real time;

• and the method comprises:
• step S01, making the MCU arithmetic unit start to operate, when the switching signal processing unit receives an imperceptible activating signal;
• step S02, calculating, by the motor operation parameter calculation unit, a current speed, a current acceleration and a current position of a motor based on the rotor position signal sent by the rotor position sensor capture unit, and sending calculation results to the MCU arithmetic unit to serve as PID input parameters of imperceptible operation adjustment;
• step S03, calculating and outputting, by the imperceptible operation PID adjustment unit targeting a preset acceleration and a preset speed, a voltage value needed by a target acceleration and a target speed to the PWM generator unit;
• and
• step S04, outputting, by the PWM generator unit, a PWM duty ratio based on the voltage value calculated above, so as to control the lifting desk to do an imperceptible lifting action.