Barcode Reader Dynamic Session Control for Variable Swipe Speeds
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Solution Overview
Problem
Existing bi-optic barcode readers are unable to accommodate cashiers of different experience levels, leading to inefficiencies in the checkout process as they struggle to adapt to varying swipe speeds, potentially resulting in repeated scanning of products.
Innovation Solution
A barcode reader system with an optical imaging assembly and processor that captures images of the field of view, initiates an identification session when a target enters, terminates it upon successful product code recognition, and prevents subsequent sessions until the target exits the field of view, allowing for dynamic adaptation to different swipe speeds and preventing accidental multiple scans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the barcode reader uses a fixed identification session duration, then the device complexity is reduced, but the adaptability to different cashier experience levels deteriorates
Solution Approach 1:
The patent implements dynamic identification session management where the session duration and termination conditions automatically adjust based on detected cashier behavior patterns. The system transitions from static fixed-duration sessions to dynamic sessions that adapt to individual cashier speeds and styles, resolving the contradiction between device simplicity and adaptability.
2Productivity
If the barcode reader allows continuous scanning without restrictions, then the productivity is improved, but the reliability of preventing duplicate scans deteriorates
Solution Approach 1:
The system employs feedback mechanisms where the barcode reader continuously monitors scanning outcomes and target position within the field of view. When a product code is successfully identified or when the target exits the viewing area, the system provides feedback to terminate the current session and prevent duplicate scans, thereby maintaining both high productivity and scan accuracy.
3Adaptability or versatility
If the barcode reader uses a long identification session timeout, then the adaptability to slower swipe speeds is improved, but the loss of time for faster cashiers worsens
Solution Approach 1:
The identification session timeout is implemented as a dynamic parameter rather than a fixed value. The system adjusts the timeout duration based on real-time detection of target movement and cashier interaction patterns, allowing longer sessions for slower cashiers while automatically terminating sessions for faster cashiers, thus eliminating the time loss without sacrificing adaptability.
4Reliability
If the barcode reader monitors target position continuously, then the reliability of preventing duplicate scans is improved, but the use of energy worsens
Solution Approach 1:
Instead of continuous monitoring, the system implements periodic position checks at critical moments during the identification session. The optical imaging assembly captures images at specific intervals and triggers session termination based on these periodic assessments, reducing energy consumption while maintaining the reliability needed to detect when targets exit the field of view.
Data Source
AI summary
Systems and methods for adapting swipe speeds for barcode readers. A barcode reader includes a housing and an optical imaging assembly positioned at least partially within the housing. The optical imaging assembly has a field of view (FOV). The optical imaging assembly is operable to capture one or more images of the FOV. The barcode reader also includes a processor communicatively coupled to the optical imaging assembly. The processor is configured to initiate an identification session when a target at least one of (i) enters the FOV and (ii) is in the FOV. The processor further is configured to, responsive to initiation of the identification session: terminate the identification session in response to identifying a product code associated with the target resulting in a termination of the identification session; responsive to the termination of the identification session, prevent initiation of a subsequent identification session until a detection of the target exiting the FOV; and responsive to the detection of the target exiting the FOV, enable initiation of a subsequent identification session.