Disclosed is a cargo handling system, and a power drive unit (PDU) for a cargo handling system, wherein the PDU comprises a permanent magnet motor (PMM) and is designed to provide a first static restraint braking function effectuated by designing the PMM to have a high cogging torque, and a second dynamic control braking function effectuated by motor regeneration.

A system utilizes electroadhesive surfaces for braking and metering objects in an automated environment. An electroadhesive surface can include electrodes that are configured to induce an electrostatic attraction with nearby objects upon application of voltage to the electrodes. The systems described utilize various configurations of electroadhesive surfaces, sensors, controllers and programmable processors to create smart braking, capturing and metering systems for improved automated material handling.

A system utilizes electroadhesive surfaces for braking and metering objects in an automated environment. An electroadhesive surface can include electrodes that are configured to induce an electrostatic attraction with nearby objects upon application of voltage to the electrodes. The systems described utilize various configurations of electroadhesive surfaces, sensors, controllers and programmable processors to create smart braking, capturing and metering systems for improved automated material handling.

Disclosed is a cargo handling system, and a power drive unit (PDU) for a cargo handling system, wherein the PDU comprises a permanent magnet motor (PMM) and is designed to provide a first static restraint braking function effectuated by designing the PMM to have a high cogging torque, and a second dynamic control braking function effectuated by motor regeneration.

Disclosed is a cargo handling system, and a power drive unit (PDU) for a cargo handling system, wherein the PDU comprises a permanent magnet motor (PMM) and is designed to provide a first static restraint braking function effectuated by designing the PMM to have a high cogging torque, and a second dynamic control braking function effectuated by motor regeneration.

A cargo handling system is provided. The cargo handling system includes a set of first power drive units, a set of second power drive units, and a controller. Each of the set of first power drive units and the set of second power drive units includes a drive roller, a motor configured to rotate the drive roller; and an infrared sensor. The controller is configured to send a command to engage the drive roller of each of the set of first power drive units to drive a cargo in a first direction and, responsive to receiving a first signal from the infrared sensor from a first power drive unit in the set of second power drive units, send a command to disengage a drive roller of a paired first power drive unit in the set of first power drive units.

A cargo handling system is provided. The cargo handling system includes a set of first power drive units, a set of second power drive units, and a controller. Each of the set of first power drive units and the set of second power drive units includes a drive roller, a motor configured to rotate the drive roller; and an infrared sensor. The controller is configured to send a command to engage the drive roller of each of the set of first power drive units to drive a cargo in a first direction and, responsive to receiving a first signal from the infrared sensor from a first power drive unit in the set of second power drive units, send a command to disengage a drive roller of a paired first power drive unit in the set of first power drive units.

A power drive unit (PDU) having a magnetic hold brake for use in an aircraft is disclosed herein. The PDU includes a wheel configured to convey cargo through a portion of the aircraft, a motor coupled to the wheel, a brake disk, a solenoid configured to apply a first force to move the brake disk in a first direction to resist rotation of the motor, wherein the solenoid is further configured to apply a second force to move the brake disk in a second direction opposite the first direction to allow the motor to rotate, and a magnet configured to apply a third force to the brake disk, the third force being in the first direction to apply a drag force to the motor.

A power drive unit (PDU) having a magnetic hold brake for use in an aircraft is disclosed herein. The PDU includes a wheel configured to convey cargo through a portion of the aircraft, a motor coupled to the wheel, a brake disk, a solenoid configured to apply a first force to move the brake disk in a first direction to resist rotation of the motor, wherein the solenoid is further configured to apply a second force to move the brake disk in a second direction opposite the first direction to allow the motor to rotate, and a magnet configured to apply a third force to the brake disk, the third force being in the first direction to apply a drag force to the motor.

This conveyor stopper comprises: a stopper module hinged to at least one of an inlet and an outlet of a conveyor around a first shaft; and an actuator which is coupled to the stopper module and switches the stopper module to a bridge mode or a stopper mode, wherein the stopper module comprises: a stopper housing on one side of which the first shaft is located; and a second shaft which is located in the stopper housing and spaced apart from the first shaft and to which the actuator is coupled, wherein, in the bridge mode, the upper surface of the stopper module forms a continuous surface with the upper surface of the conveyor, and in the stopper mode, the upper surface of the stopper module forms a surface that is bent at an angle greater than or equal to a predetermined angle from the upper surface of the conveyor. The conveyor stopper may act as a bridge so that objects to be moved can be easily transferred or loaded despite a step due to height difference, or a predetermined separation distance, between conveyors, or may act as a stopper so that objects to be moved do not fall even when the conveyor malfunctions.