Remote Barcode Decoding via Wireless Image Transmission
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Solution Overview
Problem
Traditional barcode scanning systems have a limited reading range, making it difficult to accurately read barcodes on objects that are distant or in hard-to-reach locations, such as sterile rooms or high shelves, where moving the scanner or the object is not feasible.
Innovation Solution
A system and method for remote barcode reading using a wireless communication transceiver, processor, and non-transitory storage media that establishes a wireless communication link with a remote image capturing system, allowing commands to be transmitted to direct a remote optical sensor to capture and decode barcodes from a distance, using optical or digital zoom for high-resolution imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If traditional barcode scanners are used, then the reading range is limited by the scanner's resolution, but the system is simple and cost-effective
Solution Approach 1:
The system is divided into two independent components: a remote image capturing system (camera) and a decoding device (barcode reader). The camera captures images from a distance and transmits them to the decoder, which processes the images to decode barcodes. This segmentation allows the reading range to be extended without requiring the entire system to be physically close to the barcode.
Solution Approach 2:
An image transmission medium (such as a network connection or data link) serves as an intermediary between the remote camera and the decoding device. This intermediary enables the transfer of captured images from the remote location to the decoder, allowing barcode reading beyond the direct scanning range while maintaining system functionality.
2Length of stationary object
If the scanner is moved to reach distant barcodes, then the reading range is extended, but the ease of operation deteriorates when the scanner or object cannot be moved
Solution Approach 1:
Instead of moving the scanner to the barcode (traditional approach), the system inverts the approach by bringing the camera close to the barcode to capture an image, then transmitting the image to the decoder. This inversion allows the reading process to occur at a distance while maintaining ease of operation, as the camera can be positioned near the barcode without requiring the operator to physically reach it.
3Measurement precision
If optical zoom is used to enhance remote image capture, then the measurement precision is improved, but the use of energy increases
Solution Approach 1:
The system applies partial zoom only when necessary to achieve sufficient barcode resolution at the given distance. Rather than continuously using maximum zoom, the system adjusts the zoom level based on the specific requirements of each scanning scenario, using just enough magnification to decode the barcode accurately while minimizing unnecessary energy consumption.
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 accurate and reliable decoding of barcodes beyond the limited range of traditional scanners, facilitating access to barcodes in restricted or hard-to-reach locations without the need to move the scanner or object, improving efficiency in inventory tracking and logistics.
Implementation Method 1
a remote optical sensor may be directed to a barcode via commands communicated from a decoding device
Data Source
AI summary
Systems and method for remotely capturing a barcode and local decoding. The barcode may be captured using a remote imaging sensor. Images captured may be transmitted to a mobile scanner with an incorporated decoder. Additionally, inputs to the mobile scanner may facilitate moving the remote imaging sensor in three-dimensional space. Some embodiments also include a pointer device that may non-destructively mark a position for the remote imaging sensor to target. An image or series of image may be transmitted to the mobile scanner. When an image includes a barcode, the mobile scanner may decode the barcode and provide confirmation feedback.