Automation System Using Customizable Movement Profiles

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Solution Overview

Problem

Conventional automation systems for controlling machine movements are limited by predefined profile types, which restrict the forms of movement control and do not allow for flexible adjustment of variables such as position, speed, and acceleration, leading to inflexible and inefficient movement control.

Innovation Solution

An automation system that enables the use of freely determinable profiles on a time or position basis, allowing for the selection of polynomial or spline interpolation, and the combination of different variables, including position, speed, pressure, and force, to create customizable movement profiles that can be prescribed as functions of higher degrees, including trigonometric elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If predefined profile types are used for movement control, then the system is simple to operate, but the adaptability of movement control is restricted

Engineering Contradiction:

Improveadaptability of movement controlVSAvoidcomplexity of automation system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system transitions from static predefined profile types to dynamic, user-definable profiles where the argument and function variables can be freely specified. This allows the movement control to adapt to different requirements by defining custom profiles with specific argument variables (independent variables) and function variables (dependent variables), resolving the contradiction between adaptability and complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the parameters of the profile definition by allowing free specification of argument variables and function variables without unit restrictions. This enables the system to handle diverse movement control scenarios by varying the parameters (variables) rather than requiring different predefined profile types, thus improving adaptability while maintaining system simplicity.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If standard profiles are used, then the device complexity is low, but the manufacturing precision of movement control is insufficient

Engineering Contradiction:

Improveprecision of movement controlVSAvoidcomplexity of profile definition

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

By allowing free definition of argument variables and function variables with different physical meanings and units, the system achieves higher precision in movement control. The ability to specify custom variables enables precise control of position, speed, acceleration, and other movement parameters according to exact requirements, overcoming the limitations of standard profiles.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If predefined profile types are used, then the ease of operation is high, but the productivity of movement control is reduced

Engineering Contradiction:

Improveefficiency of movement controlVSAvoidease of profile selection

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system creates a universal profile definition method that can handle various movement control scenarios through a single flexible approach. By defining profiles with free argument and function variables, one profile structure can serve multiple purposes (positioning, speed control, acceleration control, etc.), improving productivity without significantly increasing operational complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If cam disk functions with mathematical interpolation are used, then the adaptability is improved, but the measurement precision of time-based control is lost

Engineering Contradiction:

Improveflexibility of profile definitionVSAvoidprecision of time-based movement control

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The invention segments the profile definition into distinct argument variables and function variables, allowing separate specification of time/position parameters and movement parameters. This segmentation enables both flexible profile definition and precise time-based control by clearly distinguishing between the independent variable (time or position) and dependent variables (speed, acceleration, etc.).

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8155781B2Automation system and method for movement control of at least one moveable machine element

Publication Date: 2012.04.10 SIEMENS AG

AI summary

In order to improve movement control in an automation system for movement control, profiles for movement control are freely defined via functions. Polynomial interpolations or spline interpolations are used for the defined functions, the interpolations being of a higher degree. The profile for movement control has a command variable and a secondary variable, at least one of which is time-based or position-related.