Modular Autoloader with Self-Adaptive Motion Control
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Solution Overview
Problem
Current optical disk autoloader systems lack flexibility and adaptability to handle diverse optical disk formats and sizes, requiring costly maintenance and updates due to fixed motion plans and limited functionality separation, leading to reduced user interface and maintenance capabilities.
Innovation Solution
A modularized optical disk copier/loader system with self-adaptive algorithms and four physical modules (duplication tower, robot arm, control and power unit, and user interface platform) that allows end-users to assemble and combine modules for diverse applications, using self-studying control algorithms and a motion strategy database for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed motion plan dedicated from factory-preset configuration is used, then the robot arm can operate with simple control, but it cannot be easily modified or updated to respond to changes in optical disk formats
Solution Approach 1:
The patent divides the motion control system into separate functional modules: a robot arm module, a control unit module, and a database module storing motion plans for different optical disk formats. This segmentation allows the system to handle diverse disk formats by loading appropriate pre-programmed motion plans from the database without requiring complex real-time computation or reconfiguration of the entire system.
Solution Approach 2:
The patent implements pre-programmed motion plans stored in a database that are prepared in advance for different optical disk formats. The control unit simply needs to retrieve the appropriate pre-computed motion plan from the database based on the disk type, eliminating the need for complex on-the-fly calculations and reducing system complexity while maintaining high adaptability.
2Ease of operation
If stepper motors or servo motors with external computer are used, then the construction of disk copier system is eased, but flexibility in adjusting robotic arm movement is reduced
Solution Approach 1:
The patent designs a universal control unit that can interface with different types of actuators (stepper motors or servo motors) through standardized communication protocols. This control unit receives motion commands from the database and translates them into appropriate actuator commands, providing flexibility in adjusting robotic arm movement while maintaining ease of construction through standardized interfaces.
Solution Approach 2:
The patent introduces an intermediary control unit that acts as a mediator between the database storing motion plans and the physical actuators. This intermediary layer translates high-level motion commands into actuator-specific control signals, enabling flexible adjustment of robotic arm movement while keeping the system construction simple through standardized communication interfaces.
3Adaptability or versatility
If mixed functionality is combined in present day autoloader design, then the system can perform multiple functions, but maintenance and repair capabilities are limited and costly
Solution Approach 1:
The patent segments the autoloader system into distinct functional modules: a robot arm module for physical manipulation, a control unit module for motion control, a database module for storing motion plans, and an optical drive module for duplication. This modular architecture allows each module to be independently maintained and repaired, reducing the cost and complexity of on-site maintenance while preserving the system's mixed functionality.
Solution Approach 2:
The patent uses a database to store multiple copies of motion plans for different optical disk formats and system configurations. Instead of having complex hardware switches or reconfigurable circuits to adapt to different functions, the system uses software-based copying of motion plans, making maintenance simpler as software can be updated or replaced without affecting hardware components.
4Ease of manufacture
If factory-preset configuration is used, then the system is easy to deploy, but it cannot be easily modified or updated by end users for new optical disk formats
Solution Approach 1:
The patent implements a database that stores pre-computed motion plans for various optical disk formats, prepared in advance during system development. End users can easily update the system for new formats by adding new entries to the database without needing to modify the factory-preset hardware configuration or complex control logic, thus maintaining ease of deployment while enabling user-friendly updates.
Solution Approach 2:
The patent uses a database to store multiple copies of motion plans that can be selectively loaded based on the optical disk format. This allows end users to update the system for new formats by simply adding new motion plan copies to the database, avoiding the need to reconfigure hardware or rewrite control software, thereby maintaining ease of manufacture while enabling flexible user updates.
Data Source
AI summary
An autoloader system with modularization architecture and self-adaptive motion control ability for mass optical disks duplication includes four physical modules: a robot arm module with sensors and joints dedicates for delivering and picking up optical disks; an optical disk duplication tower has a number of optical drives in a stack, or a matrix for optical disk duplication; a motion control module has an embedded motion controller and a power source to synchronize the motion of robot arm and duplication; a platform module has a base frame to fix other modules and a user interface. Some disk stacks are situated on top of platform module. The use of a self-adaptive control algorithm, consisting of a Motion Strategy Database, Initial Process, Motion Planning Process, Motion Generation Process and Motion Monitor Process, to ascertain system configurations and components furthest satisfy the required flexibility for modifying/upgrading hardware or ever-changing user needs. The use of DC motors and self-correcting adaptive algorithm provides better versatility to disk copier systems than most commonly used stepper motors, even in the case of “short tray” wherein the tray does not fully extend out. The stand-alone design of present invention further makes the use and operation of the disk copier easier and friendlier.