Mobile Device Fault Detection Using Screen Pressure Sensing
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Solution Overview
Problem
Current systems and methods are inadequate for remotely assessing the condition of mobile devices, particularly for detecting fraud in warranty or insurance claims related to damaged screens, as they can be easily spoofed and do not effectively identify minor cracks.
Innovation Solution
A software application, such as the Fault State Test Application (FSTA), is installed on the mobile device to interact with sensors and user inputs to assess screen damage by measuring pressure or magnetometer readings, comparing them to predetermined criteria, and encrypting the results for secure transmission to a third party.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current systems and methods are used to check device condition, then the process is simple and quick, but the detection precision is low and fraud cannot be effectively detected
Solution Approach 1:
The patent introduces a third-party service provider as an intermediary that operates a facility with specialized detection equipment. This intermediary between the user and the insurance company performs comprehensive fault detection using professional tools (magnetometers, pressure sensors, optical systems) that would be too complex for end-user devices, thereby achieving high detection precision without burdening the user with complexity.
Solution Approach 2:
The patent replaces simple visual inspection methods with sophisticated detection systems using magnetometers, pressure sensors, and optical scanning systems. These automated mechanical and electronic detection systems objectively measure physical properties of the screen and device structure, eliminating subjective visual assessment and significantly improving detection accuracy for minor cracks and internal damage.
2Reliability
If visual inspection methods are used, then the ease of operation is high, but the reliability of fraud detection is low
Solution Approach 1:
The system implements comprehensive feedback mechanisms where detection results from multiple sensors (magnetometer readings, pressure sensor data, optical scan results) are automatically analyzed and compared against known fault patterns. The third-party service provider receives this data, performs analysis, and provides definitive feedback on fault conditions, creating a reliable closed-loop system that reduces fraud while maintaining operational simplicity for users.
Solution Approach 2:
Users initiate the detection process themselves by visiting authorized service centers and providing their device information. The detection system then automatically performs comprehensive scans without requiring user expertise. This self-service approach maintains ease of operation for users while the backend system handles the complex analysis, achieving both reliability and simplicity.
3Measurement precision
If comprehensive detection methods are implemented, then the detection precision improves, but the loss of time increases
Solution Approach 1:
The system performs preliminary actions by pre-configuring detection protocols and having authorized service centers ready with calibrated equipment before actual detection is needed. When a user brings a device for detection, the system is already prepared to execute comprehensive scans immediately, reducing wait time while maintaining thoroughness. Insurance companies also pre-establish relationships with service centers, streamlining the overall process.
Solution Approach 2:
The detection system operates continuously with automated scanning processes that efficiently move through multiple detection stages without interruption. Optical scanners, magnetometers, and pressure sensors operate in coordinated sequences, maximizing the rate of data collection. This continuous operation allows comprehensive detection to be completed in minimal time, balancing thoroughness with efficiency.
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 FSTA provides a trusted method to accurately determine the presence of screen faults, reducing fraud by ensuring valid insurance and warranty claims, and can be used in various scenarios like insurance verification, device transfer, and legal determinations.
Implementation Method 1
measuring a plurality of magnetometer readings from the mobile device when the user touches each of the respective areas
Implementation Method 2
measuring a plurality of pressure values measured from the user's contact from the touched point as it is dragged across the display
Data Source
AI summary
There is presented a system and method for detecting mobile device fault conditions, including detecting fault conditions by software operating on the mobile device. In one embodiment, the present invention provides for systems and methods for detecting that a mobile device has a cracked screen, and reporting the status of the screen, working or not, so that appropriate action may be taken by a third party. In one embodiment, the data obtained by testing of the mobile device is encrypted to prevent tampering or spoofing by the user of the mobile device, and is suitably decrypted by the recipient or software running within a server.