RFID Test Tube Rack Dispatching for Automated Analysis Systems
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Solution Overview
Problem
The existing pipeline system for test tube racks relies heavily on barcodes for information, which are prone to contamination and errors, leading to reduced identification rates and efficiency in sample dispatching.
Innovation Solution
Implementing a readable and writable label on test tube racks that can store and convey test mode information, allowing the analysis system to directly dispatch the test tube racks based on the information stored on the label, using a scanning mechanism to read and write data for efficient routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barcode is used to identify and dispatch test tube racks, then the system can track and route racks, but the barcode is prone to contamination and errors, reducing identification rate and conveying efficiency
Solution Approach 1:
The patent replaces the mechanical/optical barcode reading system with an RFID (Radio Frequency Identification) system. The RFID label on the test tube rack communicates wirelessly with the reading device, eliminating the need for visual line-of-sight scanning and making the identification process immune to contamination issues that plague barcodes. This substitution of identification technology directly resolves the contradiction by maintaining high reliability while improving conveying efficiency.
2Loss of information
If a barcode is used for test tube rack identification, then basic information can be stored, but the barcode cannot carry more information and requires strong dependence on external systems for dispatching
Solution Approach 1:
The RFID label contains an integrated circuit that can store multiple types of information including test tube rack sequence numbers, types, and test mode information, far exceeding the capacity of a barcode. This allows the test tube rack to carry its own dispatching instructions internally, reducing dependence on external system lookups and consultations, thereby increasing information capacity while reducing system complexity.
3Reliability
If barcode information is contaminated or erroneous, then dispatching errors occur, but correcting these errors causes delayed transfer or wrong delivery of the test tube rack
Solution Approach 1:
The RFID system provides more reliable reading capabilities compared to barcode scanning, as RFID tags can be read through certain materials and do not require precise alignment or line-of-sight. This reduces identification errors and the need for re-scanning, thereby maintaining high dispatching accuracy while minimizing transfer delays that would occur with barcode contamination or misreading.
Data Source
AI summary
A test tube rack dispatching method, a pipeline analysis system and a test tube rack. Said method is applied to a pipeline analysis system. The pipeline system comprises a sample conveying mechanism, at least two test devices and at least two test platforms corresponding to the at least two test devices, the sampling mechanism being connected to the at least two test platforms. Said method comprises: scanning a readable and writable label of a test tube rack placed in the pipeline system, so as to read test mode information corresponding to the test tube rack; and dispatching, by the sample conveying mechanism, the test tube rack to a test platform corresponding to the test mode information, so as to test samples on the test tube rack by a test device corresponding to the test platform.