Construction Laser Remote Control Threshold Detection

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Solution Overview

Problem

Existing construction laser operation methods, particularly with remote control units, are not intuitive and often result in unintentional device movements, leading to malfunctions and user discomfort due to complex handling and the need for frequent movement between the user and the laser device.

Innovation Solution

A method where actions on a construction laser are only triggered after a threshold value of parameter change is reached, with the extent of the action changing proportionally to the parameter change, using sensors like inclination sensors to ensure intentional movements are detected, thereby preventing unintentional actions and simplifying the operation of modes like scan, section, and point modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If actions are triggered immediately by pressing control panel buttons, then operation response is fast, but unintentional movements cause malfunctions and reduce reliability

Engineering Contradiction:
Improveoperation response speedVSAvoidoperation reliability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs preliminary detection of movement intensity using acceleration sensors before triggering actions. The control method evaluates whether the detected acceleration exceeds a threshold value, and only then processes the button press as a valid command. This preliminary verification prevents unintentional operations while maintaining fast response for intentional actions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors acceleration data from sensors and provides feedback to the control logic. When a button is pressed, the system checks the current acceleration state against threshold criteria, creating a feedback loop that distinguishes intentional from unintentional movements. This feedback mechanism ensures reliable operation without sacrificing response speed.

Inventive Principle:
Principle #23Feedback

2Reliability

If remote control unit requires complex handling procedures, then unintentional movements are prevented, but ease of operation deteriorates and user comfort decreases

Engineering Contradiction:
Improveoperation reliabilityVSAvoiduser comfort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system changes the parameter evaluation from simple button press detection to acceleration-threshold-based validation. By monitoring the intensity and characteristics of device movement through acceleration sensors, the system automatically distinguishes intentional from unintentional actions. This parameter change simplifies the user interface while maintaining reliability, as users naturally move the remote control with sufficient intensity during intentional operation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The remote control unit automatically performs validation of user intentions through its built-in acceleration sensors and control logic. The system self-determines whether a button press is intentional by evaluating movement parameters, eliminating the need for complex manual verification procedures. This self-service approach maintains reliability while preserving ease of operation.

Inventive Principle:
Principle #25Self-service

3Reliability

If threshold-based action triggering is implemented, then unintentional movements are prevented, but device complexity increases due to additional sensors and control logic

Engineering Contradiction:
Improveoperation reliabilityVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The acceleration sensors serve multiple functions: they detect unintentional movements for reliability validation, characterize intentional movements for action triggering, and can potentially provide additional information about user intent. This multi-functionality reduces the need for separate validation mechanisms, thereby limiting the increase in device complexity while maintaining improved reliability.

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

4Ease of manufacture

If user must move between laser device and control panel, then direct device adjustment is possible, but loss of time increases and productivity decreases

Engineering Contradiction:
Improvedevice adjustabilityVSAvoidoperation efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The control functionality is extracted from the laser device itself and placed into a separate remote control unit that the user can carry freely. This extraction allows the user to operate the laser device from any position without physical contact, eliminating the need to move between the laser and control panel. The acceleration-based validation ensures that this remote operation maintains the same reliability as direct device adjustment.

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach ensures intuitive and secure operation of construction lasers by preventing unintentional movements, reducing the need for complex command buttons, and maintaining the set action values once the desired mode is reached, enhancing user comfort and reducing malfunctions.

Implementation Method 1

at least one sensor for determining a change in a parameter of the remote control unit

Methodology Applied
Scientific EffectInclination sensing: Accelerometer

Data Source

PatentEP3098565B1Method for operating a construction laser
Publication Date: 2021.05.05 STABILA MESSGERATE GUSTAV ULLRICH GMBH & CO KG
  • EP3098565B1 patent drawingFigure 1
  • EP3098565B1 patent drawingFigure 2
  • EP3098565B1 patent drawingFigure 3

AI summary

The invention relates to a method for operating a construction laser by means of a remote control which has at least one input field, such as a button, for triggering at least one action of the construction laser, wherein the remote control unit contains at least one sensor for determining a change in a parameter of the remote control unit and the change in the parameter at least influences the at least one action, wherein the parameter is a parameter from the group position, inclination, movement of the remote control unit and the action is at least one action or operating mode from the group rotation speed of the laser head, section mode, mask mode, scan mode, inclination of the plane spanned by the particularly rotating laser beam, point mode.To enable easy handling, it is proposed that at least one action after pressing at least one input field is only triggered when the extent of the change of at least one parameter of the remote control unit reaches a threshold value.