Removable HDD Locking Control for Safe Ejection During Data Transfer

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Solution Overview

Problem

Conventional removable HDD receiving bays cannot detect the data transfer state between the HDD and a computer, leading to potential data loss and damage when users incorrectly eject the HDD during transfer.

Innovation Solution

An intelligent locking device with a microprocessor, solenoid lock, control button, position detector, and display is integrated into the receiving bay to prevent wrongful ejection by detecting data transfer and only releasing the lock when safe to do so, ensuring data integrity and device safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mechanical lock is used to fix the removable HDD to the receiving bay, then the HDD can be secured during data transfer, but users can still accidentally eject the HDD by manually unlocking it, causing data loss

Engineering Contradiction:
Improvedata transfer safetyVSAvoidmanual ejection control
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional mechanical key-lock system with an intelligent electronic locking mechanism controlled by a microprocessor. The locking element is actuated electronically based on detected data transfer states, eliminating the need for manual key operation and preventing accidental ejections during critical data operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system incorporates a detection mechanism that monitors the data transfer state between the HDD and computer, providing feedback to the microprocessor. Based on this feedback, the system automatically adjusts the locking state - maintaining lock during active transfer and permitting ejection when safe, thus resolving the contradiction between security and operational control.

Inventive Principle:
Principle #23Feedback

2Reliability

If the receiving bay provides a mechanical lock to prevent ejection, then data transfer can be protected, but the system cannot detect the working state of the HDD, leading to potential data loss

Engineering Contradiction:
Improvedata transfer protectionVSAvoiddetection system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates a detection mechanism that monitors the data transfer state between the HDD and computer, providing feedback to the microprocessor. Based on this feedback, the system automatically adjusts the locking state - maintaining lock during active transfer and permitting ejection when safe, thus resolving the contradiction between security and operational control.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-monitoring and self-control of the locking mechanism based on the detected data transfer state. The microprocessor automatically manages the locking element without requiring external intervention, making the system intelligent and adaptive to operational conditions while maintaining data protection.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The intelligent locking device effectively prevents data loss and HDD damage by ensuring the HDD remains locked during transfer and only allows safe ejection when data transfer is terminated, providing visual cues for user safety.

Implementation Method 1

a locking element electrically connected to the microprocessor for locking the removable HDD to the receiving bay of a computer

Methodology Applied
Scientific EffectSolenoid: Solenoid

Data Source

PatentUS20080089022A1Intelligent locking device, removable HDD Receiving system with the same and method for preventing the removable HDD from being wrongly ejected therefrom
Publication Date: 2008.04.17 SAE MAGNETICS (HK) LTD
  • US20080089022A1 patent drawing
  • US20080089022A1 patent drawing
  • US20080089022A1 patent drawing

AI summary

An intelligent locking device comprises a microprocessor, a locking element and a control button electrically connected to the microprocessor respectively. The locking element locks a removable HDD to a computer. The control button generates trigger signals in response to manual push thereon. When receiving the trigger signal, the microprocessor detects whether there is data transferring between the removable HDD and the computer, if there is data transferring, the microprocessor terminates data transferring and then sends a driving signal to the locking element; if not, the microprocessor directly sends a driving signal to the locking element. When receiving the driving signal, the locking element releases the lock between the removable HDD and the computer to permit the removable HDD to be safely ejected. Meanwhile, a removable HDD receiving system with the locking device and a method for preventing the removable HDD from being wrongly ejected from the receiving system are disclosed.