Disc Driver Mover State Information Sharing

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Solution Overview

Problem

Conventional disc drives in vehicles lack effective state information sharing between the disc driver and mover, leading to potential errors and damages to optical discs during operation.

Innovation Solution

A disc drive system where the disc driver and mover share state information through a network, using a disc tray, optical pickup unit, disc communication unit, and disc controller connected via CAN and USB networks, to ensure safe seating and operation of optical discs, and prevent errors by determining the disc's state and controlling its movement within the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the disc driver and disc mover operate independently without state information sharing, then each component can function autonomously, but errors in disc operation and damages to optical discs may occur due to lack of coordination

Engineering Contradiction:

Improvedisc operation reliabilityVSAvoidstate information sharing system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The disc mover and disc driver are configured to share state information through feedback mechanisms. The disc mover provides first state information (inserted/withdrawn state, error status) to the disc driver, and the disc driver provides second state information (disc seating status, data extraction status, operation normality) to the disc mover. This feedback loop enables coordinated operation and prevents errors and damages.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent merges the operational states of the disc mover and disc driver into a unified information sharing system. By combining the state information from both components through communication networks (CAN bus for disc mover, USB for disc driver), the system achieves coordinated control while maintaining functional independence of each component.

Inventive Principle:

Principle #5Merging (Combining)

2Speed

If the disc drive is moved without checking the disc seating state, then the disc driver can be repositioned quickly, but optical discs may be damaged due to movement during data extraction

Engineering Contradiction:

Improvedisc driver movement speedVSAvoidoptical disc damage

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

Before the disc mover moves the disc driver, it first receives and processes second state information from the disc driver to determine whether the optical disc is safely seated and whether data extraction is in progress. This preliminary check prevents movement during critical operations, avoiding disc damage while allowing quick movement when safe.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The disc driver acts as an intermediary between the disc mover and the optical disc. It monitors the disc seating state and data extraction status, then communicates this information to the disc mover. This intermediary role enables the disc mover to make informed decisions about movement timing, preventing disc damage while maintaining operational efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10046722B2Disc drive vehicle having the same, and method for controlling the vehicle

Publication Date: 2018.08.14 HYUNDAI MOTOR CO LTD

AI summary

A disc drive includes: a disc driver that plays a safely seated optical disc; and a disc mover that moves the disc driver. The disc driver and the disc mover are configured to share information of their respective states with each other.