IP Library Granted Patent US 8,392,135
Granted Patent B2
US 8,392,135 · App. 12/855,576 · Granted Mar 5, 2013

Methods and systems for analyzing performance of a sorting system

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Quick Facts
Patent No.
US 8,392,135
App. No.
12/855,576
Granted
Mar 5, 2013
Kind
B2
Abstract

A method for analyzing performance of a sorting system is provided. The method includes recording downtime experienced by the sorting system, recording runtime experienced by the sorting system, and recording an optimal characterization of a product stream to be sorted by the sorting system. The optimal characterization includes at least an optimal weight of a first commodity of the product stream. An actual characterization of the product stream as sorted by the sorting system is recorded. The actual characterization includes at least an actual weight of the first commodity sorted from the product stream. The method further includes determining the performance of the sorting system based on at least two of the downtime, the runtime, the optimal characterization, and the actual characterization.

Claims (46)

1. A method for analyzing performance of a sorting system, said method comprising:

recording downtime experienced by the sorting system;

recording runtime experienced by the sorting system;

recording an optimal characterization of a product stream to be sorted by the sorting system, the optimal characterization including at least an optimal weight of a first commodity of the product stream;

recording an actual characterization of the product stream as sorted by the sorting system, the actual characterization including at least an actual weight of the first commodity sorted from the product stream; and

determining the performance of the sorting system based on at least two of the downtime, the runtime, the optimal characterization, and the actual characterization.

2. A method in accordance with claim 1 , wherein a plurality of product streams are sorted by the sorting machine, and determining the performance of the sorting system comprises:

comparing a downtime and an actual characterization for a first product stream of the plurality of product streams with a downtime and an actual characterization for a second product stream of the plurality of product streams; and

determining whether the first product stream or the second product stream has a higher level of recovery based on the comparison.

3. A method in accordance with claim 1 , wherein determining the performance of the sorting system comprises;

determining a scheduled time;

determining a ratio of the actual characterization with respect the scheduled time;

determining a ratio of the actual characterization with respect to the runtime; and

determining the performance based on the ratios.

4. A method in accordance with claim 3 , further comprising:

determining a ratio of the optimal characterization with respect the scheduled time;

determining a ratio of the optimal characterization with respect to the runtime; and

comparing at least two of the ratios to determine the performance of the sorting system.

5. A method in accordance with claim 1 , wherein the sorting system experiences a plurality of downtimes and a plurality of runtimes, said method further comprising:

recording shift information, operator information, and maintenance information associated with each downtime and each runtime; and

comparing the plurality of downtimes with respect to at least one of the shift information, the operator information and the maintenance information to determine the performance of the sorting system.

6. A method in accordance with claim 1 further comprising:

recording a number of hand picks with respect to time; and

determining the performance of the sorting system using at least the number of hand picks with respect to time.

7. A method in accordance with claim 1 further comprising:

determining a performance for each sorting system of a plurality of sorting systems; and

comparing the performances of the plurality of sorting systems with each other to facilitate increasing the performance of at least one sorting system of the plurality of sorting systems.

8. A sorting system comprising:

at least one sensor positioned within said sorting system;

a computer system coupled in communication with said at least one sensor to receive data from said at least one sensor, said computer system configured to:

record downtime experienced by said sorting system;

record runtime experienced by said sorting system;

record an optimal characterization of a product stream to be sorted by said sorting system, the optimal characterization including at least an optimal weight of a first commodity of the product stream;

record an actual characterization of the product stream as sorted by said sorting system, the actual characterization including at least an actual weight of the first commodity sorted from the product stream; and

determine the performance of said sorting system based on at least two of the downtime, the runtime, the optimal characterization, and the actual characterization.

9. A sorting system in accordance with claim 8 , wherein said computer system comprising a monitoring system located within said sorting system.

10. A sorting system in accordance with claim 8 , wherein said at least one sensor comprising at least one of a scale sensor, a motor sensor, and an eye sensor.

11. A sorting system in accordance with claim 8 , wherein said computer system is configured to:

determine whether the data received from said at least one sensor indicates that at least a portion of said sorting system is experiencing the downtime;

when the received data indicates that at least a portion of said sorting system is experiencing downtime:

begin recording of the downtime; and

qualify the downtime; and

when the received data indicates that at least the portion of said sorting system has been enabled, said computer system is configured to end the recording of the downtime.

12. A sorting system in accordance with claim 8 , wherein said computer system is configured to:

weigh the product stream as the product stream is fed into said sorting system; and

weigh the first commodity sorted from the product stream to determine the actual weight of the first commodity.

Assignments (6)
CHANGE OF NAME Recorded Nov 6, 2015
From: ROCK-TENN SHARED SERVICES, LLC
To: WESTROCK SHARED SERVICES, LLC
Reel/Frame 037057/0404 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2013
From: ROCKTENN CP, LLC
To: ROCK-TENN SHARED SERVICES, LLC
Reel/Frame 031247/0991 →
MERGER Recorded Aug 30, 2013
From: SMURFIT-STONE CONTAINER CORPORATION
To: ROCKTENN CP, LLC
Reel/Frame 031122/0131 →
MERGER Recorded Aug 23, 2013
From: SMURFIT-STONE CONTAINER ENTERPRISES, INC
To: SMURFIT-STONE CONTAINER CORPORATION
Reel/Frame 031074/0590 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 024831 FRAME 0684. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNORS INTEREST. Recorded Jul 26, 2011
From: MCCLAIN, STEPHEN B.; SCHUSTER, JAMES J.; BYERS, RICKY G.; ADAMS, GERALD L.
To: SMURFIT-STONE CONTAINER ENTERPRISES, INC.
Reel/Frame 026647/0416 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2010
From: MCCLAIN, STEPHEN B.; SCHUSTER, JAMES J.; BYERS, RICKY G.; ADAMS, GERALD L.
To: SMURFIT-STONE CONTAINER CORPORATION
Reel/Frame 024831/0684 →