Portable Electronic Device Self-Testing Method
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Solution Overview
Problem
Existing methods for testing portable electronic devices in aircraft require additional equipment like cameras and external control systems to detect display errors and integrity issues, which is cumbersome and not always feasible.
Innovation Solution
A method that involves acquiring and storing parameters, generating and displaying two sets of results using different storage areas within the device, allowing users to visually or automatically detect integrity issues by comparing these images, without the need for external support systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a receiving support with camera and external control system is used to detect display errors, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The portable electronic device performs self-testing by generating two identical sets of results through different processing paths (first and second processing operations) and comparing them internally. The device uses its own display screen to show both results and its own processing unit to detect discrepancies, eliminating the need for external cameras and control systems while maintaining detection accuracy
Solution Approach 2:
The testing functionality is merged into the portable electronic device itself. The acquisition member, processing unit, storage unit, and display screen are all integrated components of the device being tested, combining the tested object and the testing apparatus into a single unified system
2Reliability
If dedicated additional members like camera and external control system are installed, then reliability of detection is improved, but ease of operation deteriorates
Solution Approach 1:
The device autonomously performs integrity detection by executing two different processing operations on the same input parameters and automatically comparing the results. The processing unit detects any discrepancies between the first and second sets of results without requiring external monitoring equipment or complex operational procedures
Solution Approach 2:
The portable electronic device's existing components serve multiple functions: the processing unit both processes flight data and performs integrity checking; the display screen both shows flight information and displays test results for comparison; the storage unit both stores flight parameters and stores results from different processing paths
3Reliability
If continuous integrity monitoring is implemented during flight, then reliability is improved, but use of energy increases
Solution Approach 1:
The integrity testing is performed periodically rather than continuously. The processing unit executes the dual processing operations and comparison at specific intervals during flight, checking integrity at key moments without constant monitoring, thereby reducing energy consumption while maintaining reliable detection capability
Solution Approach 2:
The system performs partial integrity checking by selecting specific critical parameters or processing paths to test rather than continuously analyzing all data streams. This selective approach provides sufficient reliability for flight safety while consuming less energy than complete continuous monitoring would require
Data Source
AI summary
A method for testing a portable electronic device. The method comprises the following steps: acquiring at least one set of parameters; storing the at least one set of parameters in a first area of a storage unit of the portable electronic device; storing the at least one set of parameters in a second area of the storage unit; generating at least a first image by means of a first processing operation; in a first displaying step, displaying the at least one first image for a predetermined time period; in a first erasing step, erasing first intermediate results corresponding to calculation steps carried out during the first processing operation; generating at least one second image by means of a second processing operation; and in a second displaying step, displaying the at least one second image for a predetermined time period.