Barcode Scanner Guide Line for Positioning Accuracy
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Solution Overview
Problem
Conventional barcode reading devices lack a clear indication of the laser light irradiation position during barcode reading, making it difficult for users to accurately adjust the scanning position, especially in bright environments or when viewing the screen for image capture and scanning simultaneously.
Innovation Solution
A barcode reading device with a processor that displays a guide line on the screen indicating the assumed irradiation position of the laser light beam superimposed on the captured image, allowing users to adjust the scanning position more easily and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera and display are added to the barcode reading device for image capture and simultaneous viewing, then the device functionality and user convenience are improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions (barcode scanning, image capture, and display) into a single integrated handy terminal device. The barcode scanner, camera, and display are merged into one device body, allowing users to perform both barcode reading and image capture operations with a single device, thereby improving versatility while managing complexity through integration.
2Productivity
If the laser light emitting direction and imaging direction are set to be substantially parallel, then the user can efficiently perform barcode reading and imaging operations simultaneously, but the user cannot accurately grasp the laser light irradiation position on the screen
Solution Approach 1:
The patent introduces a guide line as an intermediary visual element on the display screen. This guide line serves as a mediator between the invisible laser irradiation position and the user's visual perception. By displaying the guide line at the position corresponding to the laser beam's irradiation point, users can accurately grasp where the laser is pointing while maintaining the parallel configuration of the light emitting and imaging directions.
3Device complexity
If no indicator is displayed to show the laser irradiation position, then the device complexity is reduced, but the ease of operation deteriorates in bright environments or when viewing the screen for image capture
Solution Approach 1:
The patent uses visual indicators (guide lines) displayed on the screen to indicate the laser irradiation position. This visual feedback mechanism helps users adjust the scanning position more easily, especially in bright environments or when users need to view the screen for image capture purposes. The guide line provides clear visual feedback without significantly increasing device complexity.
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
Enhances user operability by providing a clear visual indication of the laser light position, improving adjustment accuracy and reducing environmental influence, while allowing concurrent image capture and scanning operations without obstructing other display information.
Implementation Method 1
a barcode scanner which irradiates a target with a light beam and reads a barcode provided to the target
Implementation Method 2
a camera which captures an image of the target
Data Source
AI summary
A barcode reading device including a barcode scanner which irradiates a target with a light beam and reads a barcode provided to the target, a camera which captures an image of the target, a display which sequentially displays images captured by the camera, and a processor which performs indicator display control processing of causing an indicator indicating an assumed irradiation position of the light beam to be displayed on the display while being superimposed on the captured image when the barcode is read by the barcode scanner.