Adaptive Diagnostic Frame Transmission for Communication Reliability
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Solution Overview
Problem
Existing methods for monitoring communication between transmitter and receiver entities in industrial settings face challenges in achieving high reliability without saturating the communication link or causing overconsumption of electrical energy, particularly when diagnostic frames are transmitted at high frequencies.
Innovation Solution
A method that determines the transmission time of diagnostic frames based on a minimum duration between data communication frames, using an increasing function to vary the transmission frequency, ensuring maximum reliability while capping the duration between diagnostic frames to avoid link saturation and energy overconsumption, with diagnostic frames transmitted until a new data communication frame is sent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If diagnostic frames are transmitted at a high frequency to detect communication errors with maximum reliability, then communication reliability is improved, but the communication link becomes saturated and electrical energy is overconsumed
Solution Approach 1:
The patent applies dynamics by making the diagnostic frame transmission frequency variable rather than fixed. The transmission frequency adapts dynamically based on the observed communication state between transmitter and receiver entities. When communication is reliable, diagnostic frames are transmitted less frequently to save energy. When communication errors are detected, the frequency increases automatically to ensure reliability, thus resolving the contradiction between energy consumption and reliability.
Solution Approach 2:
The patent changes the parameter of transmission frequency from a constant high value to a variable value that adjusts based on communication conditions. By monitoring communication quality and adapting the diagnostic frame transmission interval, the system optimizes the balance between detecting errors reliably and minimizing energy consumption, directly addressing the technical contradiction.
2Reliability
If diagnostic frames are transmitted at a high frequency to ensure maximum communication reliability, then communication reliability is improved, but the communication link becomes saturated
Solution Approach 1:
The system dynamically adjusts diagnostic frame transmission frequency based on actual communication needs and observed error rates. Instead of continuously transmitting diagnostic frames at maximum frequency, the system increases frequency only when communication anomalies are detected, thereby maintaining reliability while preserving communication link capacity for data transmission.
Solution Approach 2:
The transmission interval of diagnostic frames is changed from a fixed short duration to a variable duration that extends when communication is stable and shortens when errors are detected. This parameter adjustment ensures that diagnostic monitoring maintains reliability without continuously saturating the communication link.
3Measurement precision
If diagnostic frames are transmitted continuously at high frequency to monitor communication state, then detection precision is improved, but electrical energy is overconsumed
Solution Approach 1:
The patent implements dynamic adaptation of diagnostic frame transmission based on communication state. The system starts with a baseline frequency and adjusts upward only when communication errors are detected or suspected. This dynamic approach maintains high detection precision when needed while minimizing energy consumption during normal operation, resolving the contradiction between detection precision and energy use.
Solution Approach 2:
The transmission frequency parameter of diagnostic frames is adjusted based on communication quality metrics. When communication remains stable over observation periods, the frequency parameter increases (interval extends) to reduce energy consumption. When errors are detected, the frequency parameter decreases (interval shortens) to maintain detection precision, thus optimizing the trade-off.
Data Source
AI summary
The invention relates to a method for monitoring a communication between a transmitter entity and a receiver entity. It consists of the transmission of diagnostic frames D dedicated to the monitoring of the communication. The objective of the monitoring is to ascertain the state of the communication before the next data communication frame C so as to be able to ensure that the latter has the maximum chance of taking place. Accordingly, at least one diagnostic frame D must be transmitted before the probable next transmission of a data communication frame C. The instant of transmission Tdiag[0] of the first diagnostic frame D is determined from the minimum period to be complied with between the transmission of two communication frames C. The instants of transmission Tdiag[i] of the diagnostic frames D which follow the first diagnostic frame transmitted at the instant Tdiag[0] are determined on the basis of an increasing function.