Dual-SSD POS Storage Layout for Separate Data and RAID Backup

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Solution Overview

Problem

Conventional POS systems are limited to installing only one storage unit per SATA connector, which restricts the ability to separately manage user data and operating system data, and lacks real-time backup capabilities for payment and inventory information.

Innovation Solution

A storage device for POS systems that utilizes two m-SATA or M.2 SSDs, connected through a conventional SATA connector, allowing for separate data management and real-time backup via RAID, while maintaining compatibility with existing 2.5-inch SSDs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If only one storage unit is installed per SATA connector, then the connection method is simple and compatible with existing standards, but the ability to separately manage user data and operating system data is restricted and real-time backup capabilities are lacking

Engineering Contradiction:

Improvedata management capabilityVSAvoidstorage unit configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple storage modules (first storage module and second storage module) into a single storage device that connects to the POS terminal through one SATA connector. This merging approach enables separate data management (operating system in first module, user data in second module) and real-time backup capabilities while maintaining simple connection architecture compatible with existing POS terminals.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The storage device is designed to be universally compatible with existing POS terminals that use SATA connectors. It provides multiple functions including separate data storage, real-time backup, and system recovery capabilities within a single device that interfaces through the standard SATA connection, eliminating the need for additional connectors or complex configurations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Quantity of substance

If additional storage units are installed by adding SATA connectors to the motherboard, then more storage capacity is available, but the weight and volume of the POS terminal increase

Engineering Contradiction:

Improvestorage capacityVSAvoidPOS terminal weight

Core Design Contradiction:

Quantity of substanceVSWeight of stationary object

Solution Approach 1:

The patent combines multiple storage modules into a single storage device that connects through one SATA connector, eliminating the need to add additional connectors to the motherboard. This approach increases storage capacity while avoiding the weight and volume increase that would result from adding more SATA connectors and associated mounting structures to the POS terminal.

Inventive Principle:

Principle #5Merging (Combining)

3Quantity of substance

If SATA connectors are replaced or additional connectors are installed, then storage expansion is achieved, but the POS terminal cannot be used during the replacement period and additional costs are incurred

Engineering Contradiction:

Improvestorage capacityVSAvoidreplacement period

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

The storage device is designed with universal SATA connector compatibility, allowing it to be installed in existing POS terminals without any modification or replacement of connectors. This enables storage expansion immediately upon installation without creating downtime or requiring costly hardware replacements, as the device works with the existing SATA interface.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If only one storage unit is used, then the device complexity is low, but data cannot be recovered when the storage unit errors or is damaged

Engineering Contradiction:

Improvedata recovery capabilityVSAvoidstorage configuration

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple storage modules within a single storage device that connects through one SATA connector. The first storage module stores the operating system and the second storage module stores user data, enabling data recovery capabilities. If one module fails, the other remains accessible, providing redundancy and recovery options while maintaining relatively simple device architecture.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The storage device implements a form of data redundancy where critical data can be stored across multiple modules. The operating system can be recovered from the first storage module even if the second module fails, and user data can be recovered from the second module even if the first fails, providing copy-like redundancy for disaster recovery.

Inventive Principle:

Principle #26Copying

Data Source

PatentUS12321299B2Storage device for POS and POS system utilizing same

Publication Date: 2025.06.03 HANASIS

AI summary

Disclosed herein is a storage device for a POS. The storage device is coupled to a SATA connector that operates in conjunction with the control unit of the POS. The storage device includes: a case part including a circuit board in which a first arrangement area and a second arrangement area are formed; a first storage module disposed in the first arrangement area, and a second storage module disposed in the second arrangement area; a storage module coupling part including a first storage module coupling part and a second storage module coupling part; a main coupling part disposed at one end of the case part, and electrically connected such that the data of the POS is transmitted and received; and a data circuit unit disposed between the main coupling part and the storage module coupling part, and configured to provide a circuit for the transmission and reception of data.