Dynamic Check Digit Verification via Voice Recognition
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Solution Overview
Problem
Current cargo tracking systems require workers to manually scan barcodes, disrupting their workflow and increasing labor costs, as they need to handle a scanner to confirm that cargo is being routed correctly onto the correct carrier.
Innovation Solution
A voice recognition system that captures dynamically generated check digits from electronic tags (eTags) to verify the correct placement of cargo onto carriers, allowing hands-free operation and reducing the need for manual scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barcode scanner is used to scan cargo and carrier barcodes, then cargo routing verification is achieved, but worker productivity decreases and labor costs increase due to hands-busy operation requirements
Solution Approach 1:
The patent replaces the mechanical barcode scanning system with an optical voice recognition system. The voice-enabled workflow allows workers to speak the check digit code instead of manually operating a barcode scanner, substituting mechanical hand operations with voice-based acoustic input. This resolves the contradiction by maintaining verification reliability while eliminating the hands-busy constraint that reduces productivity.
Solution Approach 2:
The system enables self-service verification where the worker's own voice serves as the scanning mechanism. The voice recognition system captures the check digit spoken by the worker, automatically processes it through the server, and verifies cargo placement without requiring the worker to manually handle external scanning equipment. This eliminates the need for hands-busy operation while maintaining verification integrity.
2Reliability
If a barcode scanner is manually operated for each cargo piece, then routing confirmation is obtained, but ergonomics deteriorate and labor costs increase
Solution Approach 1:
The patent substitutes the mechanical barcode scanner operation with a voice-based acoustic system. Instead of requiring workers to physically handle and operate a scanner device, the system captures voice input of the check digit code. This eliminates the ergonomic strain of manual scanner handling while maintaining routing confirmation reliability through automated voice recognition and server verification.
3Ease of operation
If static check digit codes are used on cargo labels, then identification is simplified, but security decreases due to check digit memorization vulnerabilities
Solution Approach 1:
The patent transforms the static check digit code into a dynamic code that changes with each interaction. The server generates a new check digit code for each cargo verification event, and this dynamic code is displayed on the eTag. This resolves the contradiction by maintaining identification simplicity (workers still speak a code) while eliminating security vulnerabilities (codes cannot be memorized as they change each time).
Solution Approach 2:
The system performs preliminary generation of dynamic check digit codes before each verification interaction. The server generates the code in advance, transmits it to the eTag for display, and ensures it is ready for immediate voice capture. This preliminary action enables the dynamic code to be available for each interaction while maintaining the simple speak-verify workflow, balancing ease of operation with enhanced security.
Data Source
AI summary
An exemplary system and method allowing for dynamic verification that cargo is being placed onto the correct carrier for transit is disclosed. The system may employ voice recognition to capture dynamically generated check digits from a display to verify the digits against a cargo record, thereby confirming that the cargo is being placed on the correct carrier. A voice enabled workflow allows a worker loading cargo to speak the last “n” digits on the identifying label of a piece of cargo to first uniquely identify the piece of cargo being handled. Once the cargo is identified, the system can direct the worker to the proper carrier into which the cargo should be placed. The worker then reads a unique “check digit” code generated on an electronic tag located in the carrier. The code is then verified by the system to confirm the carrier onto which the cargo was placed.