System, method, and computer readable medium for determining the weight of items in a non-singulated and non-spaced arrangement on a conveyor system

• US 9,146,146 B2
• Filed: 10/15/2012
• Issued: 09/29/2015
• Est. Priority Date: 10/14/2011
• Status: Active Grant

• Current Assignee: Purolator Inc. (Government of Canada)
• Original Assignee: Purolator Inc. (Government of Canada)
• Inventors: Vicencio, Andrew Silerio, Serjeantson, Kirk Edward, Laird, Cameron James
• Primary Examiner(s): Gibson, Randy W
• Application Number:
  US13/651,888
• Publication Number:
  US 20130092456A1
• Time in Patent Office: 1,079 Days
• Field of Search: 177/25.13, 177/145, 177/199, 177/200, 702/155, 702/175, 705/407, 705/414
• US Class Current: 1/1
• CPC Class Codes: G01G 19/00 Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups electric measuring arrangements involving comparison with a reference value G01R17/00
• CPC Class Codes: G01G 19/035 using electrical weight-sensitive devices
• CPC Class Codes: G01G 19/4148 for controlling postal rate in articles to be mailed franking apparatus with means for computing G07B17/02

Abstract

A weight determining system is for use with a non-singulated and non-spaced arrangement of items on a conveyor. The system includes an array of load cells, a scanning apparatus, and processors. Each of the items bears upon one or more of the load cells. Each of the load cells bears one or more of the items, and generates load data associated with them. The scanning apparatus generates scan data for the arrangement of the items on the conveyor. Based on the scan data, the processors: apportion the load data from each load cell to the items bearing on it; allocate to each item the load data apportioned from the various load cells; and determine a weight for each item. Also disclosed are a corresponding weight determining method, as well as a computer readable medium containing executable instructions to encode the processors to perform as aforesaid.

Claims

1. A weight determining system for use with singulated, non-singulated, spaced, and non-spaced arrangements of items on a conveyor system, said weight determining system comprising:

(a) an array of load cells associated with the conveyor system, wherein said array is configured to have each of the items bear upon one or more of said load cells, wherein said each of the items is in adjacent and/or neighboring relation with said one or more of said load cells, and wherein each of said load cells is configured to;

(i) bear one or more of the items; and

(ii) generate load data associated with said one or more of the items;

(b) a scanning apparatus configured to generate scan data corresponding to the arrangements of the items on the conveyor system; and

(c) one or more processors encoded to;

collect said load data and said scan data; and

based on said scan data;

(i) apportion said load data, from said each of said load cells, to said one or more of the items which are in said adjacent and/or neighboring relation therewith;

(ii) allocate said load data, apportioned as aforesaid, to said each of the items from said one or more of said load cells which are in said adjacent and/or neighboring relation therewith; and

(iii) determine a weight for said each of the items in the arrangements based on said load data apportioned and allocated as aforesaid.

2. A weight determining system according to claim 1, wherein said processors are further encoded to, based on the scan data:

determine when one of the items bears upon two or more of said load cells; and

then collect and allocate said load data, from said two or more of said load cells, to said one of the items.

3. A weight determining system according to claim 1, wherein said processors are further encoded to, based on the scan data:

determine when one of said load cells bears two or more of the items; and

then collect and apportion said load data, from said one of said load cells, to said two or more of the items.

4. A weight determining system according to claim 1, further comprising one or more databases to store said load data, said scan data, and said weight for said each of the items.

5. A weight determining system according to claim 1, wherein said scanning apparatus comprises a speed determining device configured to determine a speed of the conveyor system;

and wherein when said load data is generated at a different time than said scan data, said processors are further encoded to;

generate speed data corresponding to the speed of the conveyor system; and

, based on said speed data, apportion and allocate said load data as aforesaid.

6. A weight determining system according to claim 5, wherein said processors are further encoded to, based on said scan data and said speed data, determine the locations of the items in the arrangements relative to said one or more of said load cells of said array.

7. A weight determining system according to claim 6, wherein the processors are further encoded to, based on the locations of the items, determine said one or more of said load cells from which said load data is to be collected for said each of the items.

8. A weight determining system according to claim 1, wherein the scanning apparatus is further configured to read a unique identification tag associated with said each of the items;

and wherein the processors are further encoded to associate said unique identification tag with said weight for said each of the items.

9. A weight determining system according to claim 8, wherein the processors are further encoded to generate an alert for presentation to a user when said weight differs from predetermined weight data associated with said unique identification tag.

10. A weight determining system according to claim 1, wherein said processors are further encoded to, based on said scan data, determine dimension data for said each of the items.

11. A weight determining system according to claim 1 wherein, on a plan view of said array, laterally adjacent ones of said load cells are longitudinally offset from one another.

12. A weight determining system according to claim 1, wherein as the conveyor system bears said each of the items over said array, said weight for said each of the items is determined two or more times.

13. A weight determining system according to claim 1, wherein said array is configured, relative to the items, such that said each of the items bears upon a first set of said load cells and later, as the conveyor system bears said each of the items over said array, upon a second set of said load cells disjoint from said first set.

14. A weight determining system according to claim 1, wherein a size of said each of said load cells is predetermined based on a size of the items.

15. A weight determining system according to claim 1, wherein the weight is used for recovery of costs associated with the items on the conveyor system.

16. A weight determining method for use with singulated, non-singulated, spaced, and non-spaced arrangements of items on a conveyor system, said method comprising the steps of:

(a) conveying each of the items to bear upon one or more load cells in an array, wherein said each of the items is in adjacent and/or neighboring relation with said one or more of said load cells, with each of said load cells;

(i) bearing one or more of the items; and

(ii) generating load data associated with said one or more of the items;

(b) using a scanning apparatus to generate scan data corresponding to the arrangements of the items on the conveyor system; and

(c) using one or more processors to;

collect said load data and said scan data; and

based on said scan data;

(i) apportion said load data, from said each of said load cells, to said one or more of the items which are in said adjacent and/or neighboring relation therewith;

(ii) allocate said load data, apportioned as aforesaid, to said each of the items from said one or more of said load cells which are in said adjacent and/or neighboring relation therewith; and

(iii) determine a weight for said each of the items in the arrangements based on said load data apportioned and allocated as aforesaid.

17. A weight determining method according to claim 16, wherein in step (c), said processors are further used to, based on the scan data:

determine when one of the items bears upon two or more of said load cells; and

then collect and allocate said load data, from said two or more of said load cells, to said one of the items.

18. A weight determining method according to claim 16, wherein in step (c), said processors are further used to, based on the scan data:

determine when one of said load cells bears two or more of the items; and

then collect and apportion said load data, from said one of said load cells, to said two or more of the items.

19. A weight determining method according to claim 16, further comprising a step of using one or more databases to store said load data, said scan data, and said weight for said each of the items.

20. A weight determining method according to claim 16, wherein in step (b), a speed determining device of said scanning apparatus determines a speed of the conveyor system;

and wherein in step (c), when step (a) is performed at a different time than step (b), said processors are further used to;

generate speed data corresponding to the speed of the conveyor system; and

, based on said speed data, apportion and allocate said load data as aforesaid.

21. A weight determining method according to claim 20, wherein in step (c), said processors are further used to, based on said scan data and said speed data, determine the locations of the items in the arrangements relative to said one or more of said load cells of said array.

22. A weight determining method according to claim 21, wherein in step (c), the processors are further used to, based on the locations of the items, determine said one or more of said load cells from which said load data is to be collected for said each of the items.

23. A weight determining method according to claim 16, wherein in step (b), the scanning apparatus is further used to read a unique identification tag associated with said each of the items;

and wherein in step (c), the processors are further used to associate said unique identification tag with said weight for said each of the items.

24. A weight determining method according to claim 23, wherein in step (c), the processors are further used to generate an alert for presentation to a user when said weight differs from predetermined weight data associated with said unique identification tag.

25. A weight determining method according to claim 16, wherein in step (c), said processors are further used to, based on said scan data, determine dimension data for said each of the items.

26. A weight determining method according to claim 16 wherein before steps (a) through (c), laterally adjacent ones of said load cells are longitudinally offset from one another.

27. A weight determining method according to claim 16, wherein as the conveyor system bears said each of the items over said array, said weight for said each of the items is determined two or more times.

28. A weight determining method according to claim 16, wherein before steps (a) through (c), said array is configured, relative to the items, such that said each of the items bears upon a first set of said load cells and later, as the conveyor system bears said each of the items over said array, upon a second set of said load cells disjoint from said first set.

29. A weight determining method according to claim 16, wherein before steps (a) through (c), a size of said each of said load cells is determined based on a size of the items.

30. A weight determining system according to claim 16, further comprising a step of using the weight for recovery of costs associated with the items on the conveyor system.

31. A non-transitory, tangible computer readable medium for use with:

singulated, non-singulated, spaced, and non-spaced arrangements of items on a conveyor system;

an array of load cells associated with the conveyor system, with the array configured to have each of the items bear upon one or more of the load cells, wherein said each of the items is in adjacent and/or neighboring relation with said one or more of said load cells, and with each of the load cells configured to bear one or more of the items and generate load data associated with said one or more of the items; and

a scanning apparatus which generates scan data corresponding to the arrangements of the items on the conveyor system;

with the computer readable medium comprising executable instructions which are physically stored thereon and which, upon execution, encode one or more processors to;

(a) collect the load data and the scan data; and

(b) based on the scan data;

(i) apportion the load data, from said each of said load cells, to said one or more of the items which are in said adjacent and/or neighboring relation therewith;

(ii) allocate the load data, apportioned as aforesaid, to said each of the items from said one or more of said load cells which are in said adjacent and/or neighboring relation therewith; and

(iii) determine a weight for said each of the items in the arrangements based on the load data apportioned and allocated as aforesaid.