Product conveyor systems and methods of controlling conveyor systems

Patent metadata

Field	Value
Publication number	US-12012292-B2
Application number	US-202117188702-A
Country	US
Kind code	B2
Filing date	Mar 1, 2021
Priority date	Mar 2, 2020
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

In some embodiments, systems and methods are provided to control a product distribution conveyor system comprising: a conveyor control circuit; a product feed conveyor system; conveyor lane systems cooperated with the conveyor lane system; routing systems that cause movement of respective products from the feed conveyor system to one of the conveyor lane systems; and a plurality of sensor systems; wherein the conveyor control circuit is further configured to enhance throughput of the at least one feed conveyor system by associating each of the plurality of conveyor lane systems one of a plurality of retail stores such that a total volume of the products is substantially equally distributed over the plurality of conveyor lane systems comprising organizationally subdividing conveyor lane systems to define a plurality of lane subdivisions, and associating each retail store with a respective one of the plurality of lane subdivisions.

First claim

What is claimed is:

1. A product distribution conveyor system of a product distribution facility, wherein the product distribution conveyor system comprises:
a conveyor control circuit;
at least one product feed conveyor system comprising at least one feed conveyor and multiple feed conveyor motor systems communicatively coupled with and controlled by the conveyor control circuit to implement movement and control of the feed conveyor to move products along the feed conveyor;
a plurality of conveyor lane systems cooperated with and configured to receive products fed to the conveyor lane systems from the feed conveyor system, wherein each of the conveyor lane systems is associated with at least one bay door of the distribution facility and through which products are loaded into delivery vehicles, and wherein each of the plurality of conveyor lane systems comprises at least one lane conveyor and at least one lane motor communicatively coupled with and controlled by the conveyor control circuit to implement movement and control of the lane conveyor to move one or more of the products received from the feed conveyor system and along the lane conveyor toward the respective bay door;
a plurality of routing systems cooperated with the at least one feed conveyor and communicatively coupled with the conveyor control circuit, wherein each of the plurality of routing systems is configured to cause the movement of respective products transported on the at least one feed conveyor system to a respective one of the lane conveyors of the plurality of conveyor lane systems; and
a plurality of sensor systems each positioned adjacent the at least one of the feed conveyors and the lane conveyors, and configured to detect product identifying information of each product moved along the respective at least one feed conveyor and the lane conveyors, and communicate the product identifying information of each of the products to the conveyor control circuit, wherein the conveyor control circuit is configured to control the feed conveyor system and one or more of the plurality of routing systems to move each of the products onto an appropriate conveyor lane system associated with an intended retail store to receive the respective product;
wherein the conveyor control circuit is further configured to control throughput of the at least one feed conveyor system by accessing association rules and applying the association rules to associate each of the plurality of conveyor lane systems with at least one of a plurality of retail stores that order products to be received from the distribution facility in balancing a distribution of a total volume of the products shipped from the distribution facility over the plurality of conveyor lane systems comprising organizationally subdividing the plurality of conveyor lane systems to define a plurality of lane subdivisions each comprising a subsets of multiple conveyor lane systems of the plurality of conveyor lane systems, and associating each retail store of the plurality of retail stores with a respective one of the plurality of lane subdivisions to minimize deviations of subdivision volumes of products moved through each of the plurality of lane subdivisions.

2. The system of claim 1 , wherein the sensor systems comprise at least one of a bar code reader, a radio frequency identifier (RFID) tag reader, and an image processing system.

3. The system of claim 1 , wherein the conveyor control circuit is configured to confirm, as the product moves along the feed conveyor system, the product identifying information as a product that is scheduled to be delivered to the intended retail store that ordered the product, identifies a conveyor lane system associated with the intended retail store and controls the feed conveyor system and the one or more of the plurality of routing systems to move the product onto the identified conveyor lane system associated with the intended retail store.

4. The system of claim 1 , wherein the conveyor control circuit is further configured to access retail store assignment rules and apply the retail store assignment rules to assign each of the plurality of retail stores to a respective conveyor lane system in distributing the total volume of products to further balance a distribution of each of the subdivision volumes of products across the subset of multiple conveyor lane systems of the respective subdivision comprising minimize deviations of average lane volumes between at least pairs of neighboring conveyor lane systems of the respective subdivision.

5. The system of claim 4 , wherein the conveyor control circuit in assigning the retail stores to the respective conveyor lane system is further configured to confirm, for each day of a week that products are distributed through the distribution facility, that an average lane volume of at least three neighboring lanes is within a first lane threshold difference of an average of the total volume of the products per total number of the plurality of conveyor lane systems.

6. The system of claim 5 , further comprising:
a scheduling control circuit coupled with a database and configured to access, through the database, the total volume of the products for a current day, and apply scheduling rules to schedule each of a plurality of workers to one or more conveyor lane systems of the plurality of conveyor lane systems as a function of the assigned retail stores to the plurality of conveyor lane systems to balance workloads of the plurality of workers as a function of predict lane volumes for the current day for the retail stores assigned to the respective conveyor lane systems.

7. The system of claim 4 , wherein the conveyor control circuit in minimizing the deviations of the subdivision volumes of products moved through each of the plurality of lane subdivisions is further configured to determine, for each day of a week that products are distributed through the distribution facility, a benchmark predicted subdivision product volume as a function of the total volume of the products versus the number of lane subdivisions, and minimizing predicted deviations of the subdivision volumes from the benchmark predicted subdivision product volume for the days of the week the products are distributed through the distribution facility.

8. The system of claim 4 , further comprising:
a scheduling control circuit coupled with a database to access the total volume of the products for a current day and apply scheduling rules to schedule each of a plurality of workers to one or more conveyor lane systems of the plurality of conveyor lane systems as a function of the assigned retail stores to the plurality of conveyor lane systems to balance workloads of the plurality of workers as a function of predict lane volumes for the current day for the retail stores assigned to the respective conveyor lane systems.

9. The system of claim 4 , further comprising:
a volume prediction system configured to evaluate, for each of the plurality of retail stores, historic volumes for each day of the week that products are distributed through the distribution facility and determine a predicted volume of products per day predicted to be distributed to the respective retail store;
a database storing the association of each of the plurality conveyor lane systems to a respective one of the plurality of retail stores, the corresponding predicted volume of products per day predicted to be distributed to the respective retail store, and the total volume of the products to be distributed from the distribution facility per day; and
a scheduling control circuit coupled with the database to access the total volume of the products for a current day of the week and a total number of workers available for the current day,

Assignees

• Walmart Apollo Llc

Inventors

• Montgomery Iii Willie
• Antony Charls Christo Irus
• Waits Nathan A
• Li Zhuofei
• Wang Yu
• Krishna Manoj

Classifications

• G06Q10/08355 Primary

  Routing methods · CPC title

• B65G2203/0233

  Position of the article · CPC title

• B65G2203/0216

  Codes or marks on the article · CPC title

• B65G67/08

  using endless conveyors · CPC title

• B65G67/04

  Loading land vehicles {(loading or unloading boats to or from land vehicles B60P3/10)} · CPC title