An automatic sway suppression device and method for under-constrained hoisting

By using an automatic anti-sway device to detect and adjust the position of the hoisting cable lock in real time, the problem of the swaying of the hoisted object affecting the transport accuracy and safety risks is solved, and efficient and reliable hoisting operations are achieved.

CN122324263APending Publication Date: 2026-07-03NORTHEASTERN UNIV CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEASTERN UNIV CHINA
Filing Date
2026-06-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When hoisting objects, there is a risk of swaying that affects the accuracy and safety of the transport. Furthermore, existing methods for eliminating swaying are time-consuming, inefficient, or require manual assistance, and cannot provide sufficient motion accuracy and response speed under complex disturbances and multidimensional swaying.

Method used

An automatic anti-sway device is adopted, including an anti-sway actuator, a flexible cable, and an object grasping actuator. The sway trend is detected in real time by an accelerometer and a vision sensor. The Kalman filter algorithm is used to predict the sway trend and the position of the cable lock is adjusted by an attitude control motor to achieve dynamic vertical maintenance of the flexible cable.

Benefits of technology

It achieves efficient automatic sway cancellation under complex disturbances and multi-dimensional oscillations, provides sufficient motion accuracy and response speed, and improves the reliability and efficiency of hoisting operations.

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Abstract

An automatic anti-sway device and method for under-constrained hoisting belongs to the field of anti-sway control technology for hoisted objects. The device includes hoisting equipment, an anti-sway actuator, a flexible cable, and an object gripping actuator. The anti-sway actuator is located at the bottom of the hoisting equipment. The upper end of the flexible cable is connected to the anti-sway actuator, and the lower end of the flexible cable is connected to the object gripping actuator. An upper cable lock is provided between the flexible cable and the anti-sway actuator, and a redundant cable storage box is provided between the flexible cable and the object gripping actuator. A lower cable lock is provided on the top of the redundant cable storage box. The automatic anti-sway device and method for under-constrained hoisting of the present invention can realize automatic anti-sway under active control. When facing complex disturbances and multi-dimensional swaying, it can provide sufficient motion accuracy and response speed, and has the characteristics of short anti-sway time and high anti-sway efficiency, providing technical support for realizing reliable and efficient object hoisting operations.
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