Calculator Examination Mode Verification via Near Field Communication
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Solution Overview
Problem
Supervisors face difficulties in verifying if an electronic calculator is in examination mode without interrupting the student's operations or invalidating their work, as the function restriction state is hard to discern on small screens, and displaying this information can lead to interruptions.
Innovation Solution
A system where a scientific calculator communicates with a communication device via near field communication to set and verify an examination mode, restricting certain functions and displaying mode information temporarily, allowing supervisors to confirm the mode without hindering the student's use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the function restriction state is displayed on the calculator screen, then the supervisor can recognize the examination mode, but the student's operations are interrupted or invalidated
Solution Approach 1:
The patent introduces a supervisor's device as an intermediary to display the function restriction state information. Instead of showing the restriction state on the student's calculator screen which would interrupt operations, the information is transmitted via wireless communication to the supervisor's device where it is displayed. This allows the supervisor to verify the examination mode without affecting the student's continuous operation of the calculator.
2Area of stationary object
If the function display area is enlarged to show restriction information, then the supervisor can easily see the mode, but the student's operations are interrupted
Solution Approach 1:
The patent segments the display function between two devices: the student's calculator and the supervisor's device. The calculator transmits the function restriction state information wirelessly, while the supervisor's device displays the information in a large, clear format. This segmentation allows the supervisor to have access to enlarged display information without the student's calculator screen being modified or interrupted.
3Measurement precision
If the examination mode is verified on the small calculator screen, then the function restriction state can be confirmed, but it is difficult for the supervisor to see
Solution Approach 1:
The supervisor's device acts as an intermediary that receives wireless transmission of the function restriction state information from the calculator and displays it in an enlarged, easily visible format. This allows precise detection of the examination mode status on the calculator while providing the supervisor with clear, large-scale visualization on their own device, eliminating the visibility problem of small calculator screens.
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 supervisors to verify the examination mode without interrupting the student's operations, ensuring that only authorized functions are used during exams while allowing seamless operation of the calculator.
Implementation Method 1
a near field communication unit configured to perform near field communication with the electronic device
Data Source
Figure 1
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Figure 2B
AI summary
An electronic device includes a wireless communication unit, a display and a processor. The wireless communication unit is configured to perform wireless communication with a communication device. The processor is configured to perform operations including: performing a plurality of functions of processing data; setting a function restriction mode in which at least one function of the plurality of functions is restricted, according to a user's operation; displaying data input by a user's operation, on the display; detecting whether communication with the communication device by the wireless communication unit is possible; and displaying that the function restriction mode is set, or transmitting information representing that the function restriction mode is set to the communication device, in a case where the function restriction mode is set and communication with the communication device is possible.