A nonlinear resonance model-based active filtering crane steel rope resonance elimination control method, including: constructing a two-dimensional dynamic model of a bridge crane according to a Lagrange's equation; constructing a steel wire rope-motor nonlinear resonance model to detect a harmonic; and eliminating the harmonic by means of active filtering. The present disclosure makes in-depth study on positioning of a crane and intelligent control of an anti-swing and resonance elimination control system and uses active filtering to eliminate resonance between a heavy object and the steel wire rope, thereby reducing a swinging angle and achieving the rapid resonance elimination and anti-swing effect. The active filtering technology can quickly and effectively detect a resonance current so as to effectively suppress resonance between the heavy object and the steel wire rope, and further helps a controller quickly and accurately position a trolley to further improve anti-swing performance.

According to embodiments, a method for operating a lifting device monitoring with a control unit, monitoring current supplied to the lift actuator when the lift actuator is actuated; discontinuing the current supplied to the lift actuator when the current exceeds a current threshold value; determining an accumulated number of overload stops based on the current supplied to the lift actuator; determining at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determining an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time; and uploading, with a transceiver, at least one of the accumulated number of overload stops and the accumulated load-time parameter to at least one of the computer, the network, and the data storage device.

According to embodiments, a method for operating a lifting device monitoring with a control unit, monitoring current supplied to the lift actuator when the lift actuator is actuated; discontinuing the current supplied to the lift actuator when the current exceeds a current threshold value; determining an accumulated number of overload stops based on the current supplied to the lift actuator; determining at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determining an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time; and uploading, with a transceiver, at least one of the accumulated number of overload stops and the accumulated load-time parameter to at least one of the computer, the network, and the data storage device.

A container-handling vehicle includes a vehicle body and a lifting device for lifting a storage container from a grid. The lifting device includes a lifting band drive assembly connected to the vehicle body, a horizontal lifting frame for releasable connection to a storage container, and four lifting bands connecting the lifting band drive assembly to the lifting frame. The lifting band drive assembly includes a lifting shaft assembly having a lifting shaft and at least one motor for rotating the lifting shaft. The lifting shaft includes a first end section and a second end section. Two of the lifting bands are connected at each of the first and second end sections. The lifting shaft assembly includes at least one electrical insulating element arranged such that the lifting bands connected at the first end section is electrically insulated from the lifting bands connected at the second end section.

A container-handling vehicle includes a vehicle body and a lifting device for lifting a storage container from a grid. The lifting device includes a lifting band drive assembly connected to the vehicle body, a horizontal lifting frame for releasable connection to a storage container, and four lifting bands connecting the lifting band drive assembly to the lifting frame. The lifting band drive assembly includes a lifting shaft assembly having a lifting shaft and at least one motor for rotating the lifting shaft. The lifting shaft includes a first end section and a second end section. Two of the lifting bands are connected at each of the first and second end sections. The lifting shaft assembly includes at least one electrical insulating element arranged such that the lifting bands connected at the first end section is electrically insulated from the lifting bands connected at the second end section.

A container-handling vehicle includes a vehicle body and a lifting device for lifting a storage container from a grid. The lifting device includes a lifting band drive assembly connected to the vehicle body, a horizontal lifting frame for releasable connection to a storage container, and four lifting bands connecting the lifting band drive assembly to the lifting frame. The lifting band drive assembly includes a lifting shaft assembly having a lifting shaft and at least one motor for rotating the lifting shaft. The lifting shaft includes a first end section and a second end section. Two of the lifting bands are connected at each of the first and second end sections. The lifting shaft assembly includes at least one electrical insulating element arranged such that the lifting bands connected at the first end section is electrically insulated from the lifting bands connected at the second end section.

A container-handling vehicle includes a vehicle body and a lifting device for lifting a storage container from a grid. The lifting device includes a lifting band drive assembly connected to the vehicle body, a horizontal lifting frame for releasable connection to a storage container, and four lifting bands connecting the lifting band drive assembly to the lifting frame. The lifting band drive assembly includes a lifting shaft assembly having a lifting shaft and at least one motor for rotating the lifting shaft. The lifting shaft includes a first end section and a second end section. Two of the lifting bands are connected at each of the first and second end sections. The lifting shaft assembly includes at least one electrical insulating element arranged such that the lifting bands connected at the first end section is electrically insulated from the lifting bands connected at the second end section.

A crane calculates the resonance frequency of the fluctuation of a suspended load determined from the hanging length of a main wire rope or a sub wire rope, generates a control signal for actuators, in accordance with the operation of a turning operation tool, a hoisting operation tool and the like, and generates a filtering control signal for the actuators in which a frequency component in any frequency range has been attenuated from the control signal at any ratio in reference to the resonance frequency. When the actuators are controlled by the operation of the respective operation tool and when the actuators are controlled regardless of the operation of the respective operation tool, the frequency range to be attenuated and the attenuation ratio are switched to different settings.

A crane calculates the resonance frequency of the fluctuation of a suspended load determined from the hanging length of a main wire rope or a sub wire rope, generates a control signal for actuators, in accordance with the operation of a turning operation tool, a hoisting operation tool and the like, and generates a filtering control signal for the actuators in which a frequency component in any frequency range has been attenuated from the control signal at any ratio in reference to the resonance frequency. When the actuators are controlled by the operation of the respective operation tool and when the actuators are controlled regardless of the operation of the respective operation tool, the frequency range to be attenuated and the attenuation ratio are switched to different settings.

A storage arrangement that includes a rack receiving space; and a movement space. The rack receiving space includes at least One movable rack and the movement space may contain a movement device that interacts with the at least one rack. The movement space is arranged above the rack receiving space in a direction of gravity, and the movement device is releasably engaged with the at least one rack.