A rubber-tired gantry crane (RTG) includes an energy storage device disposed on and configured to provide power to the RTG, a primary charging device disposed on the RTG and configured to charge the energy storage device, and a secondary charging device disposed on the RTG and configured to charge the energy storage device when the RTG is idle or not in operation.

Provided are a method and a system for controlling operation of a crane, and a crane. The method includes: scanning dynamically, by a 3D imaging device, a plurality of objects within an operating range of the crane to obtain 3D spatial information of each of the plurality of objects, wherein the plurality of objects includes the crane and an obstacle, the 3D spatial information includes 3D spatial coordinates; determining a distance from the obstacle to a preset position of the crane based on the 3D spatial coordinates of the crane and the obstacle; judging whether the distance from the obstacle to the preset position is less than a preset distance corresponding to the preset position; and performing an alarm if the distance from the obstacle to the preset position is less than the preset distance corresponding to the preset position.

Provided are a method and a system for controlling operation of a crane, and a crane. The method includes: scanning dynamically, by a 3D imaging device, a plurality of objects within an operating range of the crane to obtain 3D spatial information of each of the plurality of objects, wherein the plurality of objects includes the crane and an obstacle, the 3D spatial information includes 3D spatial coordinates; determining a distance from the obstacle to a preset position of the crane based on the 3D spatial coordinates of the crane and the obstacle; judging whether the distance from the obstacle to the preset position is less than a preset distance corresponding to the preset position; and performing an alarm if the distance from the obstacle to the preset position is less than the preset distance corresponding to the preset position.

A hoisting mechanism of a crane comprising at least one rope drum for a hoist rope, at least one hoist motor for driving the rope drum, a gearing coupled between the rope drum and the hoist motor, and having an input gear on the hoist motor side and an output gear on the rope drum side, and a brake for braking the input gear. The gearing has a differential to which a first input gear and a second input gear are arranged, wherein the first input gear and the second input gear are coupled to each other and further coupled to the output gear, wherein a first hoist motor connected to the first input gear, and a second hoist motor connected to the second input gear are arranged, and wherein the first input gear and the second input gear have unequal total gear ratios relative to an output shaft. The invention also relates to a method for operating this hoisting mechanism.

A hoisting mechanism of a crane comprising at least one rope drum for a hoist rope, at least one hoist motor for driving the rope drum, a gearing coupled between the rope drum and the hoist motor, and having an input gear on the hoist motor side and an output gear on the rope drum side, and a brake for braking the input gear. The gearing has a differential to which a first input gear and a second input gear are arranged, wherein the first input gear and the second input gear are coupled to each other and further coupled to the output gear, wherein a first hoist motor connected to the first input gear, and a second hoist motor connected to the second input gear are arranged, and wherein the first input gear and the second input gear have unequal total gear ratios relative to an output shaft. The invention also relates to a method for operating this hoisting mechanism.

Accordingly, exemplary embodiments are disclosed of coordinated safety interlocking systems and methods of coordinating safety interlocking. In an exemplary embodiment, a system for providing coordinated safety interlocking between a plurality of machines is disclosed. The system generally includes a plurality of machine control units each configured to control at least one of the plurality of machines. The system also includes at least one operator control unit configured to define a dynamic cluster including a subset of the plurality of machine control units. The at least one operator control unit is configured to control safety interlocking between each machine control unit in the dynamic cluster. The system may be used to provide coordinated safety interlocking between various elements and/or machines, such as crane bridges and crane hoists, etc.

Accordingly, exemplary embodiments are disclosed of coordinated safety interlocking systems and methods of coordinating safety interlocking. In an exemplary embodiment, a system for providing coordinated safety interlocking between a plurality of machines is disclosed. The system generally includes a plurality of machine control units each configured to control at least one of the plurality of machines. The system also includes at least one operator control unit configured to define a dynamic cluster including a subset of the plurality of machine control units. The at least one operator control unit is configured to control safety interlocking between each machine control unit in the dynamic cluster. The system may be used to provide coordinated safety interlocking between various elements and/or machines, such as crane bridges and crane hoists, etc.

The present invention provides an automatic deviation correction control method for a hoisting system, comprising the following steps: obtaining a lateral displacement X and an advancing included angle α generated by the deflection of the hoisting system; when the lateral displacement X is not 0 and the advancing included angle α is not 0, determining whether the lateral displacement X and the advancing included angle α satisfy a preset condition; if the lateral displacement X and the advancing included angle α do not satisfy the preset condition, controlling the hoisting system to correct the deviation toward a center line; and if the lateral displacement X and the advancing included angle α satisfy the preset condition, controlling the hoisting system to correct the deviation toward the center line in a reverse direction. The automatic deviation correction control method for a hoisting system provided by the present invention can implement automatic deviation correction, thereby implementing the automatic deviation control of the hoisting system, and then effectively reducing the workload of a driver during work.

A crane hook block includes a frame, at least one pulley rotatably connected to the frame, a load hook connected to the frame, at least one sensor arranged on the crane hook block and designed to detect at least one ambient parameter and/or at least one status parameter of the crane hook block, and an interface connected to the at least one sensor and designed to transmit the data received from the at least one sensor.

A crane hook block includes a frame, at least one pulley rotatably connected to the frame, a load hook connected to the frame, at least one sensor arranged on the crane hook block and designed to detect at least one ambient parameter and/or at least one status parameter of the crane hook block, and an interface connected to the at least one sensor and designed to transmit the data received from the at least one sensor.