Equipment Unit Control Handover When Display Panel Communication Fails
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Solution Overview
Problem
Users cannot operate equipment units when the display panel is damaged or abnormal, as existing systems rely solely on direct communication between the unit controller and the display panel for control operations.
Innovation Solution
The method involves a unit controller that receives control data from a state controller, detects communication with a display panel controller, and performs operations based on parsing results. If communication is lost, the unit controller processes control data independently to continue operations, such as performing delay processes or locking/unlocking the equipment unit, and can hand over processing back to the display panel controller if communication is restored.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system relies solely on direct communication between the unit controller and the display panel for control operations, then the control structure is simple, but the system becomes inoperable when the display panel is damaged or abnormal
Solution Approach 1:
The patent introduces a state controller as an intermediary component that mediates between the unit controller and the display panel controller. The state controller receives control data, determines the communication state between the unit controller and display panel controller, and selectively routes control data to either the display panel controller (when communication is normal) or the unit controller (when communication is abnormal). This intermediary resolves the contradiction by adding a coordination layer that ensures system operability while maintaining a relatively simple overall control structure.
2Reliability
If the display panel controller processes all control data, then the display panel has full control functionality, but the unit controller cannot operate independently when communication is lost
Solution Approach 1:
The patent implements dynamic role assignment where the processing responsibility for control data dynamically shifts between the display panel controller and the unit controller based on communication status. When communication is normal, the display panel controller processes control data; when communication fails, the unit controller takes over processing. This dynamic adaptation ensures independent operation capability while maintaining ease of operation through automated role switching.
Solution Approach 2:
The system changes the operational parameter of control data processing from a static assignment (always to display panel controller) to a dynamic assignment based on communication state parameters. The state controller monitors communication parameters and adjusts the processing target accordingly, enabling the unit controller to operate independently when needed while maintaining normal centralized control when possible.
3Reliability
If the unit controller processes control data independently when communication is lost, then continuous operation is maintained, but the processing load on the unit controller increases
Solution Approach 1:
The patent applies partial action by having the unit controller process only the minimum necessary control data when communication is lost, rather than taking over all processing functions. The state controller intelligently determines which control data should be processed by the unit controller versus which should be handled by the display panel controller even in abnormal conditions, thereby maintaining continuous operation while minimizing the processing load on the unit controller.
Data Source
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AI summary
An equipment unit state controlling method and device, and an equipment unit. After receiving (101) control data transmitted by a state controller (61), a unit controller (63) detects whether a normal communication with a display panel controller (62) can be conducted (102), in which the state controller (61) transmits the control data to the unit controller (63) and the display panel controller (62) simultaneously; if the normal communication with the display panel controller (62) can be conducted, the unit controller performs a corresponding operation on the equipment unit according to instruction information transmitted by the display panel controller (62) (103); and if the normal communication with the display panel controller (62) cannot be conducted, the unit controller parses the control data by itself and performs the corresponding operation on the equipment unit according to the parsed results (104) . The control data is transmitted to the unit controller (63) and the display panel controller (62), such that the display panel controller (62) can perform a corresponding operation process in a normal state, and when the display panel controller (62) fails, the unit controller (63) performs the corresponding operation process, and therefore control over the equipment unit can be realized even in the case that the display panel controller (62) fails.