Drive System Telegram Recording for In-Operation Measurement Data

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Solution Overview

Problem

Existing methods for obtaining measurement data from drive systems during ongoing operation are limited, as they require a test operating mode and cannot be used during continuous system operation, which hinders early identification of potential issues and prevention of unplanned downtime.

Innovation Solution

A method for data communication between a control unit and a drive system using a telegram that includes instructions for recording actual values and system behavior, allowing for continuous measurement data collection via a bus connection, with the ability to initiate measurements and parameterize recording settings remotely using cloud computing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a function generator is used to determine measured data, then measurement data can be obtained, but only in test mode and not during ongoing plant operation

Engineering Contradiction:
Improveability to obtain measurement dataVSAvoidapplicability during ongoing operation
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The drive system performs self-measurement and self-recording of actual values during normal operation. The drive system itself generates and records the measurement data without requiring external test equipment, enabling continuous monitoring during ongoing plant operation rather than only during test modes

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The measurement and recording process operates continuously during normal drive system operation. The control unit continuously receives actual values from the drive system and stores them in memory, allowing measurement data collection to proceed without interruption throughout the entire operational lifecycle of the plant

Inventive Principle:
Principle #20Continuity of useful action

2Reliability

If measurement data is collected during ongoing operation, then early problem identification is enabled, but system complexity increases

Engineering Contradiction:
Improveearly problem identification capabilityVSAvoiddata communication system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit serves multiple functions: it controls the drive system operation, receives actual values from the drive system, stores measurement data in memory, and transmits data to external systems. This multi-functionality eliminates the need for separate dedicated measurement and data collection hardware, reducing overall system complexity while enabling continuous monitoring

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

Solution Approach 2:

The patent combines the measurement data collection function with the existing control unit and drive system architecture. The control unit integrates both control operations and measurement data acquisition, merging previously separate functions into a unified system that reduces complexity while maintaining monitoring capabilities

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4136826B1Method for data communication
Publication Date: 2024.03.13 SIEMENS AG
  • EP4136826B1 patent drawingFigure 1
  • EP4136826B1 patent drawingFigure 2~4

AI summary

The invention relates to a method for data communication between a control unit (1) and a drive system (2), wherein the control unit (1) and the drive system (2) are connected to one another, preferably via a bus (6), in such a manner that data is transmitted by means of a telegram (4), wherein the telegram (4) comprises at least one instruction, preferably a plurality of instructions, wherein the telegram (4) comprises at least one instruction for recording (5), wherein a recording of at least one current value, preferably a plurality of current values, and/or a sequence of current values, preferably a plurality of sequences of current values, is caused by the instruction for recording (5). The invention also relates to a system for carrying out the method.