Network Communication Device for Real-Time Industrial Plant Data Transmission
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Solution Overview
Problem
Current data transmission methods in industrial plants often fail to completely eliminate successive data packet errors, leading to potential failures of components or the entire plant, resulting in costly downtimes due to the inability to handle packet errors effectively in real-time capable networks.
Innovation Solution
A component and method for industrial plants that includes a network communication device capable of tolerating and signaling packet errors, adjusting redundancy in data packets to increase error correction probability, allowing for secure, real-time data transfer without retransmissions, even in faulty transmission media with high bit error probabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data packets are transmitted cyclically without repeat transmission in real-time networks, then real-time capability is improved, but data transmission reliability deteriorates due to successive packet errors
Solution Approach 1:
The patent applies preliminary action by proactively increasing redundancy in data packets before transmission when packet errors are detected. The system monitors error patterns and preemptively adds more redundancy data to subsequent packets, preventing critical multiple errors before they occur rather than reacting after failures happen.
Solution Approach 2:
The patent implements beforehand cushioning by incorporating redundancy data in data packets to cushion against potential transmission errors. This redundancy acts as a protective buffer that allows the system to tolerate single packet errors and correct bit errors without requiring retransmission, thus maintaining real-time capability while improving reliability.
2Reliability
If redundancy data items are increased in data packets, then error correction capability is improved, but transmission capacity utilization deteriorates
Solution Approach 1:
The patent applies dynamics by making the redundancy level adaptive rather than static. The network communication device dynamically adjusts the number of redundancy data items in transmitted data packets based on the detected error probability from previous transmissions. When errors are detected, redundancy is increased; when transmission is clean, redundancy is reduced, optimizing both error correction and capacity utilization in real-time.
Solution Approach 2:
The patent implements parameter changes by modifying the redundancy parameter in data packets based on transmission conditions. The system changes the amount of redundancy data included in packets according to the measured bit error probability, allowing flexible adaptation to varying channel conditions and optimizing the trade-off between error correction and transmission efficiency.
3Productivity
If current error correction techniques are used in real-time networks, then data transmission is maintained, but successive packet errors cannot be handled leading to component failures
Solution Approach 1:
The patent applies feedback by using error information from received data packets to adjust future transmission parameters. The network communication device monitors packet errors in real-time and uses this feedback to increase redundancy in subsequent transmissions, creating a closed-loop system that continuously adapts to transmission conditions and prevents critical multiple errors.
Solution Approach 2:
The patent implements self-service by enabling the transmission system to automatically detect and correct its own errors without external intervention. The network communication device monitors its own transmission quality, adjusts redundancy levels autonomously, and corrects bit errors using included redundancy data, allowing the system to handle successive packet errors independently without causing component failures.
Data Source
AI summary
A component is disclosed having a network communication device that controls transmission of data in a data network between the component and another component, without a repeat transmission of time-critical data of the plurality of data packets being possible in a transmission cycle. The network communication device is configured to (i) tolerate a possible packet error in a data packet received in a preceding transmission cycle, (ii) signal to the other component in a following transmission cycle a presence or absence of a packet error, (iii) determine whether the other component has signaled a presence of a packet error in a data packet sent by the component in the preceding transmission cycle, and (iv) depending on whether the other component signaled the presence of a packet error, adjust a number of redundancy data items in a data packet to be sent in the following transmission cycle.