Self-Diagnosing Display Device Using RGB Sensor
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Solution Overview
Problem
Digital signage systems face challenges in real-time monitoring and immediate response to failures, leading to potential financial losses and safety risks due to the difficulty in detecting and addressing minor issues promptly, especially in large, dispersed installations.
Innovation Solution
A self-diagnosing system that utilizes an RGB sensor to detect panel failures and cable defects by comparing measured RGB values with On Screen Display (OSD) data and communicates the diagnosis results to a remote server for immediate error recognition and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital signage is dispersed throughout a broad area for extensive information delivery, then information delivery capability is improved, but system monitoring and failure detection capability deteriorates
Solution Approach 1:
The digital signage device performs self-diagnosis by autonomously capturing its own display output through an integrated sensor, comparing the captured image with reference data, and detecting anomalies without requiring external monitoring equipment or manual inspection. This self-service approach enables dispersed devices to monitor themselves independently
Solution Approach 2:
The system establishes a feedback loop where the sensor captures the display output, the processor compares it with reference data, and the result feeds back to identify anomalies. This closed-loop feedback mechanism enables continuous monitoring and immediate detection of display failures or abnormalities
2Device complexity
If manual verification of breakdown is required, then system complexity is reduced, but response time to failures deteriorates
Solution Approach 1:
The digital signage device autonomously performs self-diagnosis by capturing its own display output through an integrated sensor, processing the captured image to detect anomalies, and generating diagnostic reports without requiring manual verification. This eliminates the need for operators to physically inspect each device
Solution Approach 2:
The system replaces manual mechanical inspection with automated optical sensing and image processing. The sensor captures display output optically, and the processor automatically analyzes the images to detect anomalies, substituting human operators with automated electronic systems
3Reliability
If RGB sensor self-diagnosis is implemented, then failure detection capability is improved, but device complexity increases
Solution Approach 1:
The sensor serves multiple functions: it acts as both a display output device and a diagnostic sensing device. The same sensor used for normal display operation is also utilized for capturing images for self-diagnosis, eliminating the need for separate dedicated sensing hardware
Solution Approach 2:
The system uses itself as the diagnostic target, with the display device capturing and analyzing its own output. This self-referential approach allows the device to monitor its own health without requiring external diagnostic equipment
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 real-time monitoring and rapid response to errors in digital signage, minimizing user inconvenience and preventing potential disasters by allowing for immediate identification and processing of issues, regardless of signal presence, and allowing for adjustable examination areas and locations through software coding.
Implementation Method 1
a sensor unit including at least one RGB sensor is attached to an area of the display device
Data Source
AI summary
This disclosure discloses a self-diagnosing system and a method of self-diagnosing of a display device. A display device performing self-diagnosis by communicating with a server according to an exemplary embodiment of the present invention includes an outputting unit configured to output content on a screen and to output On Screen Display (OSD) data respective to each color of RGB to a predetermined area therein, a controlling unit configured to transmit a sensing command directing an initiation of self-diagnosis to a sensor attached to an area of the display device, to acquire sensing data respective to each color in accordance with the sensing command transmission from the sensor, to compare the acquired sensing data respective to each color with the outputted OSD data respective to each color, and to generate self-diagnosis result data respective to the screen based upon the compared result and transmitting the generated data to a server, and a transmitting unit configured to transmit the generated self-diagnosis data in accordance with the control of the controlling unit.