Optical Sensor Grid Segmentation for Insulin Dose OCR
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Solution Overview
Problem
Current insulin injection devices require manual user involvement for monitoring and recording dose information, which can lead to errors, especially for users with poor eyesight, and do not facilitate easy electronic data storage and transmission.
Innovation Solution
An optical sensor system with a grid of photosensitive cells captures two distinct images of the dosage window using different subsets of cells, processed using multiple optical character recognition algorithms to enhance reliability and resilience, minimizing the impact of defective cells and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring and recording of dose information is used, then user involvement is required for accurate dose tracking, but this increases user burden and possibility of mistakes
Solution Approach 1:
The system enables automatic self-monitoring of dose information through optical sensing and OCR technology. The device automatically captures images of the dosage window, processes the dose information using OCR algorithms, and records the data without requiring manual user intervention, thereby eliminating user burden while maintaining accurate dose tracking
Solution Approach 2:
The patent replaces manual mechanical recording operations with an automated optical-electronic system. The optical sensor captures images, the processor executes OCR algorithms to convert visual dose information into digital data, and the system automatically stores and transmits this information, substituting manual operations with automated technological processes
2Reliability
If a single image is captured using all photosensitive cells, then the image capture process is simple, but defective photosensitive cells can cause errors in optical character recognition
Solution Approach 1:
The patent divides the photosensitive cell array into multiple subsets, where each subset captures a separate image of the dosage window. This segmentation allows the system to process multiple images and select the most reliable one for OCR, or combine results from multiple images to improve recognition accuracy and reduce the impact of defective cells
Solution Approach 2:
The system captures multiple images in advance using different subsets of photosensitive cells as a backup mechanism. If one image contains errors due to defective cells, the system has alternative images ready to ensure accurate OCR recognition, thereby cushioning against potential recognition failures
3Ease of operation
If dose information is displayed through a dose window for visual reading, then the information is easily accessible, but users with poor eyesight cannot accurately determine the dose reading
Solution Approach 1:
The patent replaces visual reading of dose information with automated optical recognition. The optical sensor captures an image of the dosage window, and the processor executes OCR algorithms to automatically read and interpret the dose information, converting visual data into digital information that can be displayed in various formats accessible to users with different visual abilities
Solution Approach 2:
The system creates a digital copy of the visual dose information through image capture and OCR processing. This digital copy can be displayed on screens, transmitted to mobile devices, or presented in alternative formats, providing multiple access points for users with varying visual capabilities
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
The system increases the reliability and accuracy of dose reading, reduces user burden, and facilitates easier electronic data storage and transmission by providing a combined confidence value for accurate dose display.
Implementation Method 1
an optical sensor having a plurality of photosensitive cells arranged in a grid, wherein the optical sensor is configured to: capture a first image using a first subset of the photosensitive cells
Data Source
Figure 1a
Figure 1b~2a
Figure 2b~2c
AI summary
An apparatus comprising an optical sensor having a plurality of photosensitive cells arranged in a grid, wherein the optical sensor is configured to capture a first image using a first subset of the photosensitive cells and to capture a second image using a second subset of the photosensitive cells, the second subset not including any of the photosensitive cells in the first subset, wherein the apparatus is configured to process the first and second images using at least one optical character recognition algorithm.