Optionally, a plurality of spacers 228 is arranged between the planar surface 120 of the interfacing arrangement 114 (or the top horizontal arm) and the seat arrangement 102, for permanently raising the seat arrangement 102 with respect to the interfacing arrangement 114. The spacers 228 can be implemented as rectangular or cylindrical solid blocks that can be fabricated from plastics materials, metals, metal alloys, polymers, ceramics, wood, composites and so forth. The spacers 228 can be fixed between the seat arrangement 102 and the top planar surface 120 of the top horizontal arm of the interfacing arrangement 114 such that height of the seat arrangement 102 relative to the footrest arrangement 116 is raised. For example, a plurality of metallic spacers is fixed between the seat arrangement 102 and the interface arrangement by a technician such as by welding the metallic spacers between the seat arrangement 102 and the interface arrangement. Such metallic spacers enable a height of the seat arrangement 102 to be customized with respect to the footrest arrangement 116, such as, when the height is required to be permanently adjusted for specifications (such as height) of the user.

Systems and methods of wheelchair systems having a companion control mode are disclosed. The wheelchair system includes a companion and a wheelchair. The wheelchair includes one or more wheels, at least one actuator coupled to the one or more wheels, a processing device, and a non-transitory, processor-readable storage medium in communication with the processing device. The non-transitory, processor-readable storage medium includes one or more programming instructions that, when executed, cause the processing device to determine the companion, generate a companion profile based on the determined companion, determine a movement of the companion, and actuate the at least one actuator to drive the one or more wheels to follow the movement of the companion. The actuation of the at least one actuator to drive the one or more wheels to follow the movement of the companion is an autonomous control.

A system and method for a motorized mobile chair use a plurality of sensors having a plurality of sensor types to detect a plurality of objects and generate sensor data about the detected objects, each of the detected objects being a person, the sensor data about the objects comprising a plurality of range measurements to the people and a plurality of bearing measurements to the people. The system has at least one processor to receive the sensor data about the people, group the detected people into a plurality of zones, determine a closest person in each zone, and generate one or more control signals to cause the motorized mobile chair to match a speed and a direction of the closest person in the zone corresponding to a direction of travel of the motorized mobile chair while at least approximately maintaining a selected space to the closest person in the zone corresponding to the direction of travel of the motorized mobile chair.

A patient transport apparatus with a support structure having a base, a support frame, and a patient support deck defining a support surface. An inertial sensor is coupled to the support structure and generates a signal representing a change in velocity of the support structure. A controller in communication with the inertial sensor has a processor and a non-transitory storage medium having stored thereon a program that monitors the signal generated by the inertial sensor for changes relative to a predetermined threshold. In response to an event in which the signal exceeds the predetermined threshold, the program is further configured to: generate a waveform based on the signal received from the inertial sensor; store the waveform at an overwritable address in the non-transitory storage medium; and generate an entry in an event log stored in the non-transitory storage medium, the entry comprising one or more parameters associated with the waveform.

A medical system according to one or more embodiments may include a memory, a robotic operation table top, and a controller. The robotic operation table includes a table top and a robot arm supporting the table top. The controller gives the robot arm a command to move the table top to positions corresponding to the medical processes. The robot arm includes a plurality of joints, a plurality of movable elements connected by the plurality of joints to one another, and a plurality of electric actuators and a plurality of position detectors. At least one of the plurality of joints is a horizontally-rotating joint which couples two movable elements among the plurality of movable elements to each other so as to be rotatable about a vertical axis. The positions corresponding to the medical processes include a placement position, an imaging position, and a surgery position.

A system and method for a motorized mobile chair use a plurality of sensors having a plurality of sensor types to detect a plurality of objects and generate sensor data about the detected objects, each of the detected objects being a person, the sensor data about the objects comprising a plurality of range measurements to the people and a plurality of bearing measurements to the people. The system has at least one processor to receive the sensor data about the people, group the detected people into a plurality of zones, determine a closest person in each zone, and generate one or more control signals to cause the motorized mobile chair to match a speed and a direction of the closest person in the zone corresponding to a direction of travel of the motorized mobile chair while at least approximately maintaining a selected space to the closest person in the zone corresponding to the direction of travel of the motorized mobile chair.

A system and method for providing precise navigation for a motorized mobile system (MMS) in data deprived environments, the system comprising at least one camera that is operably configured to generate one or more of an image of objects in a field-of-view of the sensors, wherein the object is identified and used to enhance navigation or operation of the MMS.

A lift device includes two vertical extendible tower members, each of the two vertical extendible tower members including, at a first lower distal end, an omnidirectional wheel assembly, and a vertical extension assembly configured to simultaneously raise and lower the two vertical extendible tower members in a vertical direction. The lift device further includes a horizontal extendible transverse member connected between second opposing distal upper ends of the two vertical extendible tower members. The horizontal extendible transverse member further including a horizontal extension assembly configured to extend and retract the horizontal extendible transverse member in a horizontal direction perpendicular to the vertical direction, a traveler carriage configured to move in the horizontal direction upon the horizontal extension assembly between the second opposing distal upper ends of the two vertical extendible tower members, and a payload lifting device configured to raise and lower a payload in the vertical direction with respect to the traveler carriage on the horizontal extension assembly.

A system and method for providing safety for a motorized mobile system (MMS) are optimized for accurate object detection, the system comprising at least two sensors that are operably configured to generate one or more of a range measurement and a bearing measurement to an object, wherein the range and bearing measurements have associated uncertainties.

A system and method for providing safety for a motorized mobile system (MMS) are optimized for accurate object detection, the method comprising generating one or more of a range measurement and a bearing measurement to an object using at least two sensors, wherein the range and bearing measurements have associated uncertainties.