Abstract: A hospital automatic guided vehicle includes a vehicle housing, an object tracking sensor, a plurality of wheels and a controller. The object tracking sensor is mounted to the vehicle housing and used to track a location of a short-range wireless transmitter. The plurality of wheels are rotatably mounted to the vehicle housing and used to move the hospital automatic guided vehicle. The controller is coupled to the object tracking sensor, and used to control the plurality of wheels to move the hospital automatic guided vehicle according to the location of the short-range wireless transmitter.

Abstract: A food dispensing device includes a shell and a safety door secured on the shell. The shell includes a base and a cover secured on the base. The base and the cover together define an opening. The safety door includes a securing portion received in the opening, and a sliding portion received in the opening. The sliding portion includes a board and a driving module, the driving module includes a driving device secured on the shell and a driving shaft rotatably installed on the board. The driving device rotates the driving shaft, the driving shaft rotates to slide the board upward or downward relative to the driving shaft to open or close the opening.

Abstract: A paper aligning apparatus includes a paper tray, a plurality of blocking tabs, and an ordering block. The paper tray includes a stack of paper. The paper tray includes a first edge and a second edge. The plurality of blocking tabs is located on the paper tray and adjacent the first edge. The plurality of blocking tabs is aligned in a line. The ordering block is movably mounted on the paper tray and adjacent to the second edge. The ordering block pushes the stack of paper in the paper tray so that the plurality of blocking tabs resist against the stack of paper.

Abstract: An electronic device includes a tray, a light source, a sensor, a control module, a puncher assembly and a stapler assembly. The light source is located on the tray and emits light. The sensor is located on the tray and detects a thickness of sheets of paper output from a printer. The control module defines a predetermined height and compares the predetermined height with the thickness of the sheets of paper. The stapler assembly is located on the tray and capable of stapling the sheets of paper. The puncher assembly is located on the tray and can perforate the sheets of papers. If the predetermined height is greater than the difference, the control module drives the stapler assembly to staple the sheets of papers. If the predetermined height is less than or equal to the difference, the control module drives the puncher assembly to perforate the sheets of papers.