EtherCAT Datagram Extraction for Low-Latency Wireless Distribution
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in extracting and processing EtherCAT datagrams from EtherCAT frames, leading to high latency and resource inefficiencies due to the need for each device to process and forward the entire frame, even if only a portion is relevant.
Innovation Solution
A method and apparatus for extracting EtherCAT datagrams from EtherCAT frames, where a network unit determines and extracts specific datagrams for each device within the frame, allowing direct transmission to the respective devices, thereby reducing unnecessary processing and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each device processes and forwards the entire EtherCAT frame, then all devices can receive the frame, but processing time and latency increase significantly
Solution Approach 1:
The patent extracts only the relevant datagrams from the EtherCAT frame that are destined for each specific device, rather than requiring each device to process the entire frame. This extraction approach reduces processing time and latency while ensuring that each device receives its intended data efficiently.
Solution Approach 2:
The patent segments the EtherCAT frame into individual datagrams, allowing selective extraction and processing of only the relevant portions for each device. This segmentation enables parallel processing of different datagrams by different devices simultaneously, reducing overall processing latency.
2Loss of information
If each device processes the entire frame, then no data is lost, but resource utilization becomes inefficient
Solution Approach 1:
The patent extracts only the necessary datagrams for each device from the EtherCAT frame, preventing information loss for the extracted data while avoiding the waste of processing resources on irrelevant data. This selective extraction maintains data completeness for intended recipients while improving resource utilization.
3Adaptability or versatility
If the entire frame is transmitted to each device, then all devices receive all data, but transmission overhead and network load increase
Solution Approach 1:
The patent extracts and transmits only the specific datagrams needed by each device rather than duplicating the entire frame to every device. This reduces transmission overhead and network energy consumption while maintaining the flexibility of EtherCAT's data distribution mechanism through selective datagram extraction and direct transmission to target devices.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for extracting EtherCAT datagrams from an EtherCAT frame. One method includes receiving an EtherCAT frame. The method includes determining a first EtherCAT datagram in the EtherCAT frame for a first device and a second EtherCAT datagram in the EtherCAT frame for a second device. The method includes extracting the first EtherCAT datagram from the EtherCAT frame to result in an extracted first EtherCAT datagram and the second EtherCAT datagram from the EtherCAT frame to result in an extracted second EtherCAT datagram. The method includes transmitting the extracted first EtherCAT datagram directly to the first device. The method includes transmitting the extracted second EtherCAT datagram directly to the second device.