Digital Input Device Button-Mode Pen for Exam Grading
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Solution Overview
Problem
Existing large-scale examination systems face challenges in efficiently inputting and correcting digital data using electronic pens, particularly in distinguishing between inputting and erasing operations, and in reproducing the process of answering for accurate grading and guidance.
Innovation Solution
A digital input device equipped with a position detection sensor, display device, operation buttons, and a processor that generates time-series data including operation information, allowing for the differentiation between inputting and erasing operations using the same electronic pen based on button states, and stores this data for easy reproduction and grading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate erasing electronic pen is used to erase answer information, then erasing function is achieved, but device complexity and ease of operation deteriorate due to needing to distinguish and switch between different pens
Solution Approach 1:
The patent combines the input function and erasing function into a single electronic pen. The electronic pen can switch between input mode and erasing mode based on the state of an operation button, eliminating the need for separate input pens and erasing pens while maintaining both functions reliably
Solution Approach 2:
The electronic pen is designed with multi-functionality, serving both as an input device and an erasing device. By detecting the state of an operation button, the system determines whether the pen is being used for input or erasing, allowing one pen to perform multiple functions without confusion
2Productivity
If answer information is inputted using an electronic pen, then digital data input is achieved, but ease of operation worsens when correction is needed due to the need to switch to a different erasing pen
Solution Approach 1:
The input function and erasing function are merged into a single electronic pen, allowing candidates to perform both inputting and correction operations with the same device without needing to switch pens or change their line of thought
Solution Approach 2:
The electronic pen's function dynamically changes based on the state of an operation button. When the button is in a first state, the pen performs input operations; when the button is in a second state, the pen performs erasing operations. This dynamic switching enables seamless correction without physical pen changes
3Extent of automation
If only answer information is filled in without showing calculation process, then automated marking is achieved, but measurement precision deteriorates because the grading process cannot evaluate the candidate's thought process
Solution Approach 1:
The system creates a digital copy of the answer sheet on a display device, preserving all input operations including corrections. This digital copy can be viewed by graders to assess the candidate's thought process while the system maintains automated marking capabilities for the final answer
Data Source
AI summary
A digital input device includes a sensor that detects an electronic pen and outputs coordinates according to positions pointed by the electronic pen, a display device, an operation button, a processor, and a storage device storing a program that causes the digital input device to: display, on the display device, a predetermined template according to a format indicated by template data and inputted information according to the position pointed by the electronic pen and received via the sensor; provide timepoint information at each timepoint, generate pieces of time-series data based on the timepoint information provided at each timepoint, each of the pieces of the time-series data including: a timepoint value indicated by the timepoint information, coordinate values indicated by the coordinates output from the sensor, a writing pressure value, and a button status value; and store answer information and correction information in association with the template data indicating the format.