Freight Tethering Replenishment for Hub-Spoke Inventory

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Solution Overview

Problem

Conventional distribution models for store replenishment are inefficient, particularly for smaller stores that face high costs and inventory challenges due to minimum quantity requirements, leading to unsaleable products and inadequate storage space.

Innovation Solution

Implementing a freight tethering environment where larger 'hub' stores replenish smaller 'spoke' stores, leveraging the hub's storage space and using point-of-sale data for targeted replenishment based on sales history, turnover rates, and seasonal demands, employing both push and pull methods for inventory management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If distribution centers replenish smaller stores with large quantities of inventory, then inventory availability is improved, but storage space requirements and inventory costs increase

Engineering Contradiction:

Improveinventory quantityVSAvoidstorage space

Core Design Contradiction:

Quantity of substanceVSVolume of stationary object

Solution Approach 1:

The patent segments the replenishment function by introducing intermediate hub stores that serve smaller spoke stores. Instead of a centralized distribution center directly replenishing all stores, the system divides replenishment into two levels: distribution center to hub stores, and hub stores to spoke stores. This segmentation allows smaller stores to maintain lower inventory levels while still receiving adequate replenishment through the hub network.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Hub stores act as intermediaries between distribution centers and smaller spoke stores. These hub stores receive large inventory shipments from distribution centers and then redistribute to spoke stores as needed. This intermediary role enables spoke stores to operate with minimal storage space while ensuring inventory availability through the hub's buffer stock.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Quantity of substance

If smaller stores maintain minimum quantity inventory requirements, then product availability is improved, but unsaleable products and waste increase

Engineering Contradiction:

Improveinventory quantityVSAvoidunsaleable products

Core Design Contradiction:

Quantity of substanceVSLoss of substance

Solution Approach 1:

The patent implements dynamic replenishment where hub stores continuously monitor inventory levels and sales data from spoke stores. Replenishment quantities are dynamically adjusted based on current demand, turnover rates, and seasonal factors rather than relying on fixed minimum quantity requirements. This dynamic approach prevents overstocking and reduces unsaleable products.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms where sales data and inventory levels from spoke stores are continuously communicated to hub stores. This feedback loop enables real-time adjustment of replenishment decisions, ensuring that spoke stores receive appropriate quantities based on actual demand rather than static minimum requirements, thereby reducing waste from unsaleable products.

Inventive Principle:

Principle #23Feedback

3Productivity

If traditional distribution centers replenish all stores, then centralized control is maintained, but replenishment efficiency and responsiveness decrease

Engineering Contradiction:

Improvereplenishment efficiencyVSAvoiddistribution system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the distribution system into hierarchical levels (distribution centers, hub stores, spoke stores) with differentiated functions. This segmentation improves efficiency by allowing hub stores to handle local replenishment decisions and relationships, while distribution centers focus on bulk receiving and strategic inventory management. The segmented structure enables faster, more responsive replenishment to spoke stores.

Inventive Principle:

Principle #1Segmentation

4Quantity of substance

If smaller stores use traditional replenishment models, then simplicity is maintained, but inventory costs and storage requirements increase

Engineering Contradiction:

Improveinventory quantityVSAvoidoperational simplicity

Core Design Contradiction:

Quantity of substanceVSEase of operation

Solution Approach 1:

The patent implements self-service replenishment where hub stores automatically monitor spoke store inventory levels and initiate replenishment orders based on pre-established parameters and sales data. This automated self-service mechanism maintains operational simplicity for spoke stores while enabling efficient inventory management without requiring complex manual ordering processes.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11403576B2Systems and methods for replenishment in a freight tethering environment

Publication Date: 2022.08.02 WALMART APOLLO LLC

AI summary

Systems, methods, and machine readable medium are provided for replenishing product in a freight tethering environment. A pick list is generated at a hub store including one or more items that need to be replenished at a spoke store. It is determined whether the pick list can be fulfilled by the hub store. If the pick list cannot be fulfilled by the hub store, then the one or more items on the pick list is aggregated to a direct-store-delivery from the distribution center. The replenishment need of the spoke store is communicated to a distribution center. Product is received from the distribution center based on the replenishment need, and the pick list for the spoke store is fulfilled by the distribution center.