IC-Tagged Serving Tray Layout Verification for Screw Placement
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Solution Overview
Problem
Current component management systems for railway and aircraft assembly face challenges in accurately identifying and positioning various types of screws and bolts, leading to potential errors in fastening due to the use of elastic materials and wireless IC tags, which struggle to distinguish between similar shapes and correctly locate components.
Innovation Solution
A component management system that employs a serving tray with IC-tag-attached bolts and a detection device capable of reading both the component's IC tag and a seat tag, using high-frequency electromagnetic waves to detect the components' position and relationship, ensuring correct placement and informing workers of any errors through a communication network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If elastic material is used for the accommodating portion to hold screws by elastic restoration force, then the screw can be held securely, but the system cannot accurately distinguish between different screw types with similar shapes
Solution Approach 1:
An IC tag is introduced as an intermediary element attached to each screw. This tag serves as a mediator between the screw and the detection system, enabling accurate identification of screw types without compromising the holding mechanism. The IC tag contains unique identification information that allows the system to distinguish between different screw types even when they have similar shapes.
Solution Approach 2:
The patent replaces the mechanical identification method (relying on shape recognition through elastic accommodation) with an electronic identification system using IC tags and detection devices. This substitution allows for precise identification of screw types based on their electronic identifiers rather than physical shape, resolving the limitation of the elastic material approach.
2Extent of automation
If wireless IC tag is attached to screw to detect presence, then the screw can be detected automatically, but the system cannot specify the exact position of the screw in the accommodating portion
Solution Approach 1:
The accommodating portion is divided into multiple distinct accommodation spaces, each equipped with its own detection device. This segmentation allows the system to detect not only the presence of screws but also their specific positions within the tray. Each detection device monitors its designated zone independently, providing detailed positional information.
Solution Approach 2:
IC tags are attached to both the screws and the accommodation spaces. The interaction between the screw IC tag and the accommodation space IC tag detected by the detection device serves as a mediator to determine the exact position. This dual-tag system enables the system to identify both what screw is present and where it is located.
3Ease of operation
If visual inspection is used to identify screws, then the worker can select screws, but errors occur when similar-shaped screws are confused
Solution Approach 1:
The detection device provides immediate feedback to the worker about the correctness of screw selection and placement. When a screw is placed in the wrong position or the wrong type is selected, the system detects this through IC tag verification and provides feedback (such as lighting indicators or alerts) to guide the worker to correct the error, thereby preventing fastening mistakes.
Solution Approach 2:
The patent replaces manual visual inspection with an automated electronic identification system using IC tags. This substitution eliminates human error in identifying similar-shaped screws by using electronic identifiers that are unique to each screw type, significantly improving reliability while maintaining ease of operation.
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 system securely recognizes and informs workers about the correct placement of multiple types of components on the serving tray, preventing errors and ensuring accurate fastening by accurately determining the positional relationship and alerting workers to any discrepancies.
Implementation Method 1
a detection device 4 having an IC tag detection part 51 that acquires recorded information of the first IC tag 72 and the second IC tag 64t
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
Provided are a component management system, a component management server, a component management method, and a serving tray, whereby: a plurality of types of components, e.g., screws, bolts, etc., are arranged at a desired location on a serving tray; and the positional relationship between the arrangement location and the components can be reliably grasped and notified. The component management system 1 has: a serving tray having a first housing section corresponding to component type, a second IC tag having information for identifying position recorded therein, and a second housing section that houses the second IC tag; a detection device that obtains recorded information from a first IC tag and the second IC tag and sends the obtained recorded information to the component management server; and the component management server that receives the first and second IC tag recorded information, browses a database associating identification information and position information for inside the tray in which components should be housed, determines whether or not the components are in the correct arrangement relationship, and outputs the results.