Industrial Control Packet Reconstruction for Low-Overhead Communication
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Solution Overview
Problem
In industrial control systems, the communication system treats all data packets equally, leading to repeated transmission of similar content, wasting air interface resources and increasing processing complexity and latency.
Innovation Solution
A communication method that uses specific information, such as sequences or control channels, to indicate the arrival or partial content of data packets, allowing for reduced transmission of complete packets, thereby conserving resources and simplifying processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication system transmits complete data packets periodically, then the control instructions are reliably delivered to the execution end, but air interface resources are wasted due to repeated transmission of similar content
Solution Approach 1:
The patent extracts only the essential information from complete data packets for transmission. Instead of sending entire packets containing mostly redundant content, the system transmits only key elements such as sequence numbers or specific control instruction identifiers, allowing the execution end to reconstruct or retrieve the full packet content from local storage or context.
Solution Approach 2:
The patent segments data packet transmission into two parts: essential transmission information (sequence numbers, control instruction identifiers) sent periodically via communication system, and complete packet content stored locally at the execution end. This segmentation allows the system to maintain reliable delivery of control instructions while minimizing air interface resource usage by transmitting only the segmented essential information.
2Loss of information
If the communication system transmits complete data packets, then all control information is available at the execution end, but processing complexity and latency increase
Solution Approach 1:
The patent extracts and transmits only the essential identifying information (sequence numbers, control instruction identifiers) rather than complete data packets. The execution end uses this extracted information to retrieve or reconstruct the full control instructions from local storage, significantly reducing processing complexity while maintaining information completeness.
3Reliability
If the communication system transmits complete data packets, then control instructions are delivered accurately, but transmission latency increases due to repeated full packet transmission
Solution Approach 1:
The patent extracts and transmits only minimal essential information (sequence numbers, identifiers) instead of complete data packets. This extraction approach maintains control instruction accuracy through reliable transmission of critical identifiers while dramatically reducing transmission latency by sending only small amounts of essential data periodically.
Data Source
AI summary
This application discloses a communication method and a communication apparatus, and is applicable to the fields of industrial control and artificial intelligence technologies. The method includes: A first apparatus receives first information, where the first information indicates that a first data packet arrives or indicates partial content included in a first data packet. The first apparatus restores the first data packet based on the first information, and executes a control instruction included in the first data packet, where the control instruction is used to control the first apparatus. For the first data packet, the first information may be used for indication, and transmission of all content included in the first data packet does not need to be performed. According to the method, resource overheads for transmission of the first data packet can be reduced.