System and method for dynamically adjusting the allocation of mail items associated with particular delivery points within a carrier structure

• US 7,390,986 B2
• Filed: 06/14/2004
• Issued: 06/24/2008
• Est. Priority Date: 06/12/2003
• Status: Active Grant

• Current Assignee: United States Postal Service (Government of the United States of America)
• Original Assignee: United States Postal Service (Government of the United States of America)
• Inventors: McDonald, Glenn
• Primary Examiner(s): Mackey; Patrick
• Assistant Examiner(s): Hageman; Mark
• Application Number:
  US10/865,913
• Publication Number:
  US 20040251180A1
• Time in Patent Office: 1,471 Days
• Field of Search: 209/584, 209/900, 270/52.03, 271/176
• US Class Current: 209/584
• CPC Class Codes: B07C 3/00 Sorting according to destination collating the pages of a book B42C1/00
• CPC Class Codes: Y10S 209/90 Sorting flat-type mail

Abstract

System and method for dynamically adjusting cells in a carrier structure for receiving mail items for delivery through a postal delivery service. Delivery points, which may represent a post office address, correspond to cells in the carrier structure. The allocation of cells may be adjusted based upon the mail delivery demands of the delivery point. Delivery points, and their corresponding cells, may also be added and/or deleted.

Claims

1. A method for adjusting the allocation of space within cells of a carrier structure, wherein the cells receive mail items for delivery and are arranged according to a route sequence, said method comprising:

assigning at least one cell to a first delivery point, wherein the first delivery point corresponds to a delivery location in the route sequence;

determining a thickness of a mail item to be sorted with the first delivery point;

incrementing a first counter tracking space used in the at least one assigned cell;

decrementing a second counter tracking remaining space in the at least one assigned cell;

comparing the thickness with the remaining space in the at least one assigned cell and sorting the mail item to the at least one assigned cell if the thickness is less than the remaining space and diverting the mail item to an overflow cell if the thickness is greater than the remaining space; and

assigning a cell adjacent to the at least one assigned cell to the first delivery point based upon a number of occurrences of overflow of the at least one assigned cell;

wherein assigning the cell adjacent to the at least one assigned cell includes shifting positions of cells associated with other delivery points located at delivery locations subsequent to the first delivery point on the route sequence.

2. The method of claim 1, wherein the thickness is determined by using a laser-light based dimension system.

3. The method of claim 1, wherein the cells are uniform in width.

4. The method of claim 1, wherein the cells are arranged in the route sequence by a sort program.

5. The method of claim 1, wherein each cell has a uniquely identifiable reference address.

6. The method of claim 1, further comprising logging the overflow by zone, date, carrier ID, and delivery point sequence.

7. The method of claim 1, further comprising producing periodic management reports that describe the number of occurrences of overflow and a number of cells allocated when overflow was re-directed to overflow cells.

8. The method of claim 1 further comprising:

incrementing an overflow counter when a mail item is diverted to an overflow cell.

9. The method of claim 1 further comprising:

changing the width of the cell.

10. A method for adding cells within a carrier structure, wherein the cells receive items for delivery and are arranged according to a route sequence, said method comprising:

adding a first delivery point to the route sequence, wherein the delivery point corresponds to a first delivery location;

adding at least one cell to the carrier structure corresponding to the first delivery point, wherein the at least one cell is added in a position corresponding to the first delivery location;

assigning a cell width to the at least one cell;

adjusting adjacent cells to the at least one added cell by shifting positions of the adjacent cells to maintain an order of the route sequence;

determining respective thicknesses of the items for delivery;

incrementing a first counter tracking space used in the at least one cell as at least one of the items for delivery is allocated to the at least one cell;

decrementing a second counter tracking remaining space in the at least one cell as the at least one of the items for delivery is allocated to the at least one cell; and

adjusting the cell width of the at least one cell when the second counter indicates no space remains in the at least one cell.

11. The method of claim 10, wherein the cells are arranged in the route sequence by a sort program.

12. The method of claim 10, wherein each cell has a uniquely identifiable reference address.

13. The method of claim 10, wherein the cells are arranged on an angle from the vertical axis.

14. The method of claim 13, wherein the angle is approximately 45 degrees.

15. A system for dynamically adjusting space allocation for delivery items, comprising:

a dimensioning system for measuring respective thicknesses of delivery items;

a carrier structure, having cells designed to receive delivery items, wherein each cell corresponds to and is arranged by a delivery point along a route sequence; and

an allocation software program for creating a virtual carrier corresponding to the carrier structure, including virtual cells corresponding to the cells of the carrier structure,

wherein the allocation software program;

tracks available space in a cell using the measured thicknesses of delivery items, the tracking comprising;

incrementing a first counter tracking space used in one of the virtual cells; and

decrementing a second counter tracking remaining space in the virtual cell;

determines whether a remaining space in a virtual cell is adequate to receive delivery items associated with the corresponding delivery point by comparing the remaining space to the measured thicknesses of delivery items associated with the corresponding delivery point;

adjusts the space allocation of the delivery point according to a number of occurrences of overflow; and

adjusts the virtual cells associated with the delivery point to receive the overflow; and

wherein the carrier structure and cells are adjusted according to the virtual carrier and virtual cells while maintaining the route sequence.

16. The system of claim 15, wherein the cells are uniform in width.

17. The system of claim 15, wherein the cells are arranged in the route sequence by a sort program.

18. The system of claim 15, wherein each cell has a uniquely identifiable reference address.

19. The system of claim 15, wherein the cells are arranged on an angle from the vertical axis.

20. The system of claim 19, wherein the angle is approximately 45 degrees.