Hand-Mounted Barcode Scanner With Motion Triggering for Fast Scanning
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Solution Overview
Problem
Existing barcode scanners face issues with ergonomics and efficiency, particularly in high-volume scanning scenarios, due to time-consuming touchscreen activation, risk of carpal tunnel syndrome from button triggers, and rapid battery drain from constant readiness.
Innovation Solution
A barcode scanner with a reading head unit attached to the user's hand, equipped with an acceleration sensor and optional gyroscope, activates upon detecting a specific motion pattern of acceleration followed by a resting phase, allowing reliable and efficient scanning without requiring a dedicated trigger mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the scanner is triggered by touching the touchscreen, then the scanning operation is simple and safe for the user, but the scanning process becomes too time-consuming for mass scanning
Solution Approach 1:
The patent replaces the touchscreen interface with motion sensing technology. The acceleration sensor detects specific hand movements (swiping, tapping, or shaking motions) to trigger the scanner, eliminating the need for manual touchscreen contact while enabling faster activation speeds suitable for mass scanning operations
2Productivity
If the scanner is triggered by pressing a trigger button on the index finger, then the scanning speed is very fast, but the user may develop carpal tunnel syndrome or thumb tendon strain
Solution Approach 1:
The patent eliminates the mechanical trigger button on the index finger and replaces it with motion sensing. The acceleration sensor detects specific hand movements (swiping, tapping, or shaking motions) to trigger the scanner, eliminating the need for repetitive thumb pressing while maintaining fast activation speeds
Solution Approach 2:
The patent changes the triggering parameter from mechanical pressure (button press) to motion characteristics (acceleration patterns). By detecting specific motion types through the acceleration sensor, the system maintains fast activation while avoiding the repetitive strain caused by continuous button pressing
3Speed
If the reading head is kept constantly ready to capture barcodes, then the scanning response time is minimized, but the battery drains too quickly
Solution Approach 1:
The patent implements periodic activation of the reading head based on detected motion patterns. Instead of continuous operation, the scanner activates the reading head only when specific motion triggers are detected (hand swiping, tapping, or shaking movements), significantly reducing battery consumption while maintaining fast response time for intended scanning operations
4Ease of operation
If motion-based triggering is used without specific movement requirements, then the user experience is simplified, but false activations occur frequently
Solution Approach 1:
The patent defines specific motion parameters for triggering: acceleration thresholds, motion duration, and movement patterns. The system activates only when these parameters are met (e.g., minimum acceleration level, sufficient motion duration), filtering out false activations from normal hand movements while keeping the interface simple for users
Solution Approach 2:
The system uses the acceleration sensor to continuously monitor hand motion and provides feedback through the control unit. By analyzing the motion patterns in real-time and comparing them against predefined thresholds, the system reliably distinguishes between intentional scanning gestures and incidental hand movements, preventing false activations
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
Enables quick, ergonomic, and reliable scanning with reduced risk of fatigue and battery consumption, facilitating high-volume scanning with minimal false activations and user-adjustable settings for personalized comfort.
Implementation Method 1
the barcode scanner according to the invention has a control unit and an acceleration sensor. The acceleration sensor measures the accelerations that occur during hand movement.
Data Source
AI summary
Barcode scanner comprising at least one reading head unit and means for attaching the at least one reading head unit to a user's hand and/or arm, as well as a control unit and an acceleration sensor that measures the accelerations occurring during movement of the hand (whether the hand alone or the hand with the arm), wherein the barcode scanner is configured to activate the reading head unit for scanning as soon as the scanner detects an acceleration that exceeds a first threshold acceleration, and a subsequent first resting phase during which the hand is essentially still.