Dynamic Sampling Rate Adjustment for Industrial Controllers

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional industrial controllers have static sampling rates that fail to adapt to changing conditions in manufacturing processes, leading to delayed detection of malfunctions and inefficiencies.

Innovation Solution

Implement a system that dynamically determines and adjusts sampling rates based on real-time data analysis and historical data mining, using I/O ports and controllers to monitor conditions and update sampling rates automatically, allowing for more accurate data retention and simulation improvements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a static sampling rate is used in conventional industrial controllers, then device complexity is reduced and ease of operation is improved, but measurement precision deteriorates and reliability worsens when process conditions change

Engineering Contradiction:
Improveease of operationVSAvoidmeasurement precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent implements dynamic sampling rate adjustment where the controller automatically modifies sampling rates based on real-time process conditions. The system transitions from static pre-defined sampling rates to dynamic adaptive sampling rates that respond to process changes, thereby maintaining measurement precision without compromising ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by continuously monitoring process data and using this information to adjust sampling rates. The controller analyzes process variability and feedback signals to determine when increased sampling is necessary, enabling automatic adaptation to changing conditions while maintaining operational simplicity.

Inventive Principle:
Principle #23Feedback

2Device complexity

If a static sampling rate is used, then device complexity is reduced, but reliability deteriorates when process conditions alter drastically

Engineering Contradiction:
Improvedevice complexityVSAvoidreliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The controller dynamically adjusts sampling rates based on process conditions, transitioning from fixed static rates to adaptive dynamic rates. This enables the system to maintain reliability during drastic process changes by increasing sampling frequency when needed, while keeping the overall device architecture relatively simple through automated decision-making.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs self-adjustment by automatically monitoring process conditions and modifying sampling rates without external intervention. The controller serves itself by making real-time decisions about data acquisition strategies, thereby maintaining reliability during process upsets without requiring complex external control systems.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If manual determination of sampling rates is used, then adaptability is reduced, but ease of operation is improved

Engineering Contradiction:
ImproveadaptabilityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically determines and adjusts sampling rates based on process conditions without requiring manual operator intervention. The controller self-manages the sampling rate configuration by analyzing process data and making adaptive decisions, thereby achieving both high adaptability to changing conditions and ease of operation through automation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback from process monitoring to automatically adjust sampling rates. By continuously analyzing process variability and condition changes, the controller adapts sampling strategies in real-time, achieving adaptability to diverse process conditions while maintaining ease of operation through automated decision-making rather than manual configuration.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7647131B1Dynamic determination of sampling rates
Publication Date: 2010.01.12 ROCKWELL AUTOMATION TECH INC
  • US7647131B1 patent drawing
  • US7647131B1 patent drawing
  • US7647131B1 patent drawing

AI summary

A system that facilitates determination of a sampling rate to utilize in connection with sampling data in an industrial environment comprises a receiver component that receives data from an I/O port of a controller. An analysis component automatically and dynamically determines a rate at which data associated with the I/O port is to be sampled based at least in part upon the received data. The system can further comprise a sampling component that samples data at the rate determined by the analysis component.