Dual-Processor Display Control for Fault Module Bypass
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Solution Overview
Problem
Existing display apparatuses face issues with abnormal image display due to processor, control module, or communication abnormalities, necessitating a solution to ensure normal image display.
Innovation Solution
A display apparatus with dual control systems and a switch device that allows the first and second processors to detect and manage abnormalities in the first control modules, enabling the second processor to take over control of affected display areas, ensuring continuous image display without re-establishing modular connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single control system is used to simplify the device structure, then device complexity is reduced, but reliability deteriorates because abnormality in the processor or control module causes image display failure
Solution Approach 1:
The patent divides the control system into multiple independent control modules (first control module, second control module, etc.), each responsible for controlling specific display areas. This localization allows that when one control module fails, only the corresponding display area is affected, while other areas can continue to function normally through other control modules, thus improving overall system reliability without requiring a complete system redesign.
Solution Approach 2:
The control system is segmented into multiple independent control modules that can operate autonomously. Each control module can detect abnormalities in itself and adjacent modules, and the system can dynamically allocate different control modules to different display areas based on their operational status. This segmentation enables the system to maintain functionality even when individual modules fail.
2Reliability
If dual control systems are implemented to improve reliability, then image display continuity is improved, but device complexity increases due to additional processors and control modules
Solution Approach 1:
The patent combines multiple control modules into a unified control system where the first processor and second processor work together to manage multiple control modules. The control modules are connected in series to form a serial link, allowing them to share information about their operational status and coordinate their actions. This merging approach allows the system to achieve high reliability through redundancy while avoiding the complexity of completely independent dual systems.
Solution Approach 2:
Each control module is designed to be multi-functional, capable of controlling display areas and simultaneously detecting abnormalities in adjacent modules. The first control module can detect abnormalities in the second control module, and vice versa. This universal design reduces the need for separate detection and control mechanisms, thereby reducing overall system complexity while maintaining reliability.
3Device complexity
If control modules are connected in series to reduce the number of connections, then device complexity is reduced, but reliability deteriorates because an abnormality in one module can affect the entire serial link
Solution Approach 1:
The patent implements a feedback mechanism where each control module continuously monitors the operational status of adjacent modules and reports abnormalities to the processor. The first control module detects abnormalities in the second control module and sends indication information to the first processor. This feedback loop allows the system to quickly identify and respond to failures, isolating the affected module and preventing the failure from propagating through the entire serial link, thus maintaining communication reliability.
Solution Approach 2:
The control modules perform preliminary detection of abnormalities before they can affect the entire system. Each module continuously checks the status of adjacent modules and prepares backup control arrangements in advance. When an abnormality is detected, the system can quickly switch to alternative control paths, preventing the serial connection from completely failing and maintaining system operation.
4Reliability
If abnormal control modules are replaced to restore normal operation, then reliability is improved, but loss of time increases due to the need to re-establish modular connections
Solution Approach 1:
The patent implements preliminary detection capabilities where control modules continuously monitor each other's operational status. Abnormalities are detected early through built-in detection mechanisms, allowing the system to identify failing modules before they completely fail. This early detection enables proactive switching to backup control modules, avoiding the need for complete module replacement and connection re-establishment, thereby reducing restoration time.
Solution Approach 2:
The processor acts as an intermediary that manages the switching between control modules. When an abnormality is detected, the processor coordinates the transition from the faulty control module to a backup module, handling the complexity of the switching process centrally. This intermediary approach simplifies the restoration process, as the processor can manage the switch without requiring physical reconnection of modules, significantly reducing restoration time.
Data Source
AI summary
An image display method and a display apparatus. The display apparatus includes: a first control system, a second control system, a switch device and a screen, where N first control modules of the first control system are connected in series to form a first serial link; N second control modules of the second control system are connected in series to form a second serial link; when detecting that an (i+1)th first control module is abnormal, by means of the switch device, an i-th first control module sends to a first processor and a second processor indication information for indicating that the (i+1)th first control module is abnormal; the first processor controls display areas corresponding to first control modules before the (i+1)th first control module to perform image display; and the second processor controls the remaining display areas to perform image display.


