Patent ID: 11897708
Assignee: PEVCO SYSTEMS INTERNATIONAL INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A method, comprising:
receiving a first carrier at a predetermined location at a first workstation via a pneumatic tube delivery system;
detecting at a first sensor a presence of the first carrier at the predetermined location;
determining, at a processor, based on the detected presence of the first carrier at the predetermined location, the first carrier is at the first workstation;
detecting at the first sensor an absence of the presence of the first carrier at the predetermined location;
detecting at a second sensor a presence of the first carrier in an area surrounding the first workstation;
determining, at a processor, based on the detected absence of the presence of the first carrier at the predetermined location and the detected presence of the first carrier in the area surrounding the first workstation, the first carrier remains at the area surrounding the first workstation;
detecting at the first sensor the absence of the presence of the first carrier at the predetermined location;
detecting at the second sensor an absence of the presence of the first carrier in the area surrounding the first workstation; and
determining, at the processor, based on the detected absence of the presence of the first carrier at the predetermined location and the detected absence of the presence of the first carrier in the area surrounding the first workstation, the first carrier is no longer at the first workstation.