| 摘要 |
The system includes a plurality of bins. Each bin has electrical circuitry including an infrared emitter and detector, a guiding light and a warning light. The circuitry of each bin is controlled by a computer and an input/output controller. The computer reads the bar code address on the envelope via a scanner. The address can also be typed in from the keyboard or input by speaking into a mike. The computer searches through its' data base for the address and then sends the bin number for that address to the Input/Output Controller. The I/O Controller includes a plurality of input lines leading from the detectors and a plurality of output lines leading to the guiding lights and warning lights of the bins. When the computer sends the address number to the I/O Controller, the I/O Controller lights the correct guiding light. If the mail piece is sensed in that bin, the guiding light in that bin goes off and the next piece of mail can be scanned. If the mail piece is placed in any other bin the warning light of that other bin comes on and the guiding light of the correct bin stays on to show the correct bin the mail piece should go in. When the mail piece is taken out of the incorrect bin and placed in the correct bin the warning light and the guiding light go off and the computer is ready to scan the next envelope.
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