Digital Twin State Synchronization Using Control State Sequences
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Solution Overview
Problem
Maintaining state synchronization between a digital twin and its mapped object is challenging due to insufficient sensing points, difficulty in creating a comprehensive digital twin, and limited bandwidth and communication latency, which complicates efficient operation and increases implementation costs.
Innovation Solution
A method and apparatus for state synchronization that involves obtaining and comparing state sequences of a virtual control system and a control system for the digital twin, determining a desired state based on the control system's sequence when inconsistencies arise, and updating the digital twin's state to achieve synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If state synchronization is achieved by simultaneously setting digital twin and mapped object, then synchronization is maintained, but implementation costs and workload increase
Solution Approach 1:
The patent extracts the synchronization determination logic from the digital twin system and places it in the control system. The control system obtains the state sequence of the digital twin, compares it with the actual object's state sequence, and determines synchronization status. This extraction reduces the burden on the digital twin system and lowers implementation complexity while maintaining reliable synchronization.
2Measurement precision
If comprehensive sensing points are added to capture all states, then synchronization accuracy improves, but implementation costs increase
Solution Approach 1:
The patent applies partial action by having the control system obtain and compare only the necessary state sequences required for synchronization determination, rather than implementing comprehensive sensing for all possible states. This selective approach achieves sufficient synchronization accuracy without the excessive cost of complete state monitoring.
3Reliability
If real-time state comparison is performed continuously, then synchronization is maintained, but communication bandwidth requirements increase
Solution Approach 1:
The patent implements periodic action by having the control system obtain the state sequence of the digital twin at specific intervals and perform comparison operations periodically, rather than continuous real-time monitoring. This periodic approach maintains synchronization reliability while significantly reducing communication bandwidth requirements.
Data Source
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AI summary
Disclosed in embodiments of the present invention are a state synchronization method, apparatus, and system for a digital twin, a device, and a medium. The method includes: obtaining a first state sequence and a second state sequence, where the first state sequence represents a state of a virtual control system for a digital twin, and the second state sequence represents a state of a control system for a mapped object of the digital twin; when the first state sequence is inconsistent with the second state sequence, determining a desired state of the digital twin based on the second state sequence; and updating a state of the digital twin to the desired state. The efficiency of state synchronization is improved, implementation costs and workload are reduced, the normal operation of a mapped object is ensured, and the working efficiency of the mapped object is improved.