Automatic Traveling System Tag Reading Error Handling
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Solution Overview
Problem
Automatic traveling devices in warehouses and facilities face efficiency reductions due to tag reading errors caused by damage, deterioration, or misalignment of tags, leading to interrupted transport operations.
Innovation Solution
An automatic traveling system equipped with a determination processor and a traveling processor that determines successful tag readings and controls the device's movement based on pre-defined connection routes between tags, allowing the system to continue traveling or adjust its path when a tag is not read, thereby minimizing transport disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the automatic traveling device stops traveling when a tag reading error occurs, then the reading accuracy can be verified, but the transport efficiency is reduced
Solution Approach 1:
The system performs preliminary verification of tag reading results by checking whether the read tag corresponds to the expected position information before making travel decisions. This preliminary check allows the device to continue traveling without stopping when readings are merely uncertain, thereby maintaining transport efficiency while still ensuring reading accuracy through validation.
Solution Approach 2:
The system enables continuous traveling operation by implementing a fallback mechanism that allows the automatic traveling device to proceed to the next tag position even when current tag reading fails or is uncertain. This continuity principle ensures that transport operations are not interrupted by reading errors, maintaining high transport efficiency while reading accuracy is preserved through the validation process.
2Productivity
If the automatic traveling device continues traveling without verification when tag reading fails, then transport efficiency is maintained, but position accuracy deteriorates
Solution Approach 1:
The system implements feedback by continuously monitoring whether tag reading results match expected position information and adjusting travel decisions accordingly. When tag readings are successfully verified against position expectations, the device continues normal operation. When verification fails, the system receives feedback to trigger position correction procedures, thereby maintaining both transport efficiency and position accuracy through adaptive control.
Solution Approach 2:
The system dynamically adjusts its travel behavior based on tag reading verification results. When readings are successful and verified, the device maintains normal dynamic operation. When readings fail verification, the system dynamically switches to a position correction mode, adjusting its travel parameters to realign with the correct position. This dynamic adaptation allows the system to maintain transport efficiency while ensuring position accuracy through conditional behavior changes.
3Measurement precision
If the system implements comprehensive tag reading verification, then position accuracy is improved, but system complexity increases
Solution Approach 1:
The system performs self-verification of tag reading results by comparing read tag information against expected position data stored in its own memory or database. This self-service verification mechanism eliminates the need for external verification systems or additional sensors, thereby improving position accuracy while avoiding the complexity increase that would result from adding more hardware components.
Solution Approach 2:
The system uses the existing tag reading function for multiple purposes: both for navigation (determining where to travel next) and for verification (confirming position accuracy). This multi-functionality allows comprehensive position verification without requiring separate dedicated verification hardware or systems, thereby improving position accuracy while minimizing the increase in system complexity by maximizing the utility of existing components.
Data Source
AI summary
An automatic traveling system includes: a determination processor that determines whether or not the automatic traveling device successfully reads a target tag at a position of the target tag while traveling; and a traveling processor that controls traveling of the automatic traveling device on the basis of information on a first connection route connecting an installation position of a first tag immediately before the target tag that is determined not to be successfully read to an installation position of the target tag, and a second connection route connecting an installation position of a second tag immediately after the target tag to the installation position of the target tag, in a case where the determination processor determines that the target tag is not successfully read.