Display Device Adaptive Control Method Switching
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Solution Overview
Problem
Existing methods for controlling external devices connected to a TV, such as HDMI-CEC, IR, and IP, often fail to adapt dynamically when one method encounters issues, requiring user intervention to switch to another method, leading to control failures.
Innovation Solution
The display device automatically detects and prioritizes multiple control methods (HDMI-CEC, IP, IR) based on supported capabilities of the external device, seamlessly switching to a secondary method if the primary method fails, without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single control method is set for external device control, then the control system is simple and easy to configure, but the reliability of external device control deteriorates when that method encounters problems
Solution Approach 1:
The system dynamically switches between different control methods (HDMI-CEC, IP, IR) based on real-time detection of method availability and external device responsiveness. The controller automatically transitions from a primary control method to alternative methods when the primary method fails, making the control system adaptive rather than static.
Solution Approach 2:
The system changes the control parameter (control method) from a fixed single-method configuration to a variable multi-method configuration. By detecting which control methods are supported by the external device and which are currently functional, the system adjusts the active control method parameter to maintain reliable control.
2Reliability
If multiple control methods are supported with automatic switching capability, then the reliability of external device control improves, but the device complexity increases
Solution Approach 1:
The control system performs self-diagnosis and self-correction by automatically detecting when the primary control method fails and switching to an alternative method without requiring user intervention. The controller monitors control signal responses and autonomously manages the transition between control methods.
Solution Approach 2:
The system implements feedback mechanisms by monitoring whether control signals sent to the external device are properly received and executed. Based on this feedback, the controller determines whether the current control method is functional and automatically switches methods when feedback indicates failure.
3Reliability
If automatic detection and switching between control methods is implemented, then control failure cases are reduced, but the processing complexity and time increase
Solution Approach 1:
The system performs preliminary actions by pre-detecting and storing information about which control methods are supported by the external device before actual control operations begin. This advance preparation allows for faster switching when method failures occur, as the controller already has knowledge of available alternative methods.
Solution Approach 2:
The control method selection is made dynamic rather than static, allowing the system to adapt to changing conditions in real-time. The controller continuously monitors control signal effectiveness and automatically adjusts the active control method based on current system state, optimizing both reliability and response time.
Data Source
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AI summary
A display device according to an embodiment of the present disclosure may obtain information on one or more control methods supported by an external device, select a first control method according to a predetermined priority based on the obtained information, and switch the first control method to a second control method having a next priority according to a change in a control situation.