Reel recovery speed adjusting device and control method for electrically-driven reel type sprinkling machine

By real-time detection of the number of reel winding layers and dynamic adjustment of the motor speed, combined with PID weight weakening and fuzzy PID control, the problems of uneven speed and insufficient control robustness in the PE pipe recycling process of the electric-driven reel sprinkler are solved, achieving smooth sprinkler operation and equipment stability.

CN120793645APending Publication Date: 2025-10-17JIANGSU UNIV
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Patent Information

Application Number
CN202511245220.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

During the PE pipe recycling process, the radius of the existing electric-driven reel sprinkler changes due to the increase in the number of reel winding layers. The constant speed operation of the motor causes uneven recycling speed. In addition, the control robustness is insufficient in complex field environments, affecting the uniformity of sprinkler irrigation and equipment stability.

Method used

By building a reel structure model to detect the number of winding layers in real time and dynamically adjusting the motor speed, and combining PID weight weakening and fuzzy PID control strategies, the PE pipe can be recycled at a uniform speed and the system robustness can be enhanced.

Benefits of technology

It achieves smooth recovery of PE pipes, improves the uniformity of sprinkler irrigation operations and the stability of equipment, enhances the system's adaptability and robustness, and avoids oscillation and hysteresis problems in traditional control methods.

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Abstract

The invention provides an electric drive reel type sprinkling machine reel recovery speed adjusting device and a control method, and the method comprises the following steps: constructing a reel structure model, and determining the real-time radius of a current reel and the number of winding layers of a PE pipe according to the radial displacement of the winding layers of the PE pipe detected by a displacement sensor; calculating a target rotating speed of a motor according to the real-time radius and a preset recovery linear speed; acquiring an actual rotating speed fed back by the motor speed measurement encoder; calculating an error between the target rotating speed and the actual rotating speed and an error change rate; a preset error value is obtained according to the current winding layer number, and the absolute value of the current error is compared with the epsilon (n); and selecting a control strategy according to a comparison result: outputting the control signal to the motor driver, and dynamically adjusting the rotating speed of the motor. Uniformity of recycling speed of the sprinkling machine and high robustness of system control can be achieved, the system is suitable for complex field environments, and sprinkling operation efficiency and stability are improved.
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