In Situ Flue Gas Analyzer Multi-Protocol Communication

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Solution Overview

Problem

Existing in situ flue gas analyzers face challenges in efficiently communicating and processing the high volume and rapid changes in flue gas stream data, particularly due to limitations in communication protocols, which can impact the effectiveness of combustion process monitoring and control.

Innovation Solution

The implementation of a process combustion control system that utilizes multiple media access units to communicate simultaneously using both hybrid and all-digital process communication protocols, such as HART and FOUNDATION Fieldbus, allowing for high-speed digital communication and integration with both combustion controllers and user interfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hybrid digital-analog communication protocol (HART) is used, then compatibility with legacy systems is maintained, but communication speed and data processing capability are limited

Engineering Contradiction:
Improvecompatibility with legacy systemsVSAvoidcommunication speed
Core Design Contradiction:
Adaptability or versatilityVSSpeed

Solution Approach 1:

The communication system is segmented into multiple independent communication channels: a first media access unit for all-digital communication and a second media access unit for hybrid digital-analog communication. This segmentation allows each channel to operate independently at its optimal speed and protocol, resolving the contradiction between legacy compatibility and high-speed communication capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flue gas analyzer is designed with multi-functional communication capability, supporting both all-digital protocols (for high-speed control) and hybrid HART protocol (for legacy compatibility). This universal communication architecture enables the single device to serve multiple communication needs simultaneously, addressing both speed and adaptability requirements

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Speed

If all-digital communication protocol is used, then communication speed and data processing capability are improved, but compatibility with legacy systems is reduced

Engineering Contradiction:
Improvecommunication speedVSAvoidcompatibility with legacy systems
Core Design Contradiction:
SpeedVSAdaptability or versatility

Solution Approach 1:

The communication system is segmented into multiple independent communication channels: a first media access unit for all-digital communication and a second media access unit for hybrid digital-analog communication. This segmentation allows each channel to operate independently at its optimal speed and protocol, resolving the contradiction between legacy compatibility and high-speed communication capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flue gas analyzer is designed with multi-functional communication capability, supporting both all-digital protocols (for high-speed control) and hybrid HART protocol (for legacy compatibility). This universal communication architecture enables the single device to serve multiple communication needs simultaneously, addressing both speed and adaptability requirements

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple communication protocols are implemented simultaneously, then both high-speed digital communication and legacy system compatibility are achieved, but device complexity increases

Engineering Contradiction:
Improvemulti-protocol communication capabilityVSAvoidcommunication system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The communication system is segmented into multiple independent media access units, each handling a specific protocol. This modular segmentation isolates protocol-specific complexity into separate units, making the overall system more manageable and maintainable while achieving multi-protocol capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A processor acts as an intermediary that coordinates between multiple media access units and manages data flow across different communication protocols. This intermediary layer abstracts the complexity of multi-protocol handling, allowing each media access unit to operate independently while maintaining system-wide coherence

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2984477B1In situ flue gas analyzer with improved process communication
Publication Date: 2019.05.22 ROSEMOUNT INC
  • EP2984477B1 patent drawingFigure 1
  • EP2984477B1 patent drawingFigure 2
  • EP2984477B1 patent drawingFigure 3

AI summary

An in situ flue gas analyzer (10) includes a probe (12) extendable into a flue. The probe (12) has a measurement cell providing a signal responsive to a concentration of a gas within the flue. A controller (52) is coupled to the probe (12) and configured to provide an output based on the signal from the measurement cell. A first media access unit (54) is coupled to the controller (52) and is operably coupleable to a first process communication link. The first media access unit (54) is configured to communicate in accordance with an all- digital process communication protocol. A second media access unit (56) is coupled to the controller (52) and is operably coupleable to a second process communication link. The second media access (56) unit is configured to communicate in accordance with a second process communication protocol that is different than the all-digital process communication protocol. The first and second media access units (54, 56) are enabled simultaneously.