Sensor Orientation Detection via Integrated Gravity Sensor

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Solution Overview

Problem

Existing sensors require significant hardware and software resources for parameterization, including external units and communication interfaces, which complicates their setup and increases complexity.

Innovation Solution

Integration of a gravity sensor within the sensor to automatically select and activate sensor functions based on its spatial orientation, eliminating the need for external parameterization devices and communication interfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If external parameterization devices and communication interfaces are used, then sensor parameterization can be achieved, but device complexity and hardware requirements increase

Engineering Contradiction:
Improvesensor parameterizationVSAvoidhardware requirements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The sensor determines its own installation orientation using an integrated gravity sensor and automatically selects the appropriate sensor function based on the detected orientation. This self-service mechanism eliminates the need for external parameterization devices, communication interfaces, and manual configuration, thereby reducing device complexity while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If manual parameterization with switches or external units is used, then sensor functions can be configured, but the setup process becomes time-consuming and complex

Engineering Contradiction:
Improvesensor function configurationVSAvoidsetup time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The sensor performs automatic orientation detection and function selection immediately upon power-up or during installation, before the sensor begins its normal operation. This preliminary automatic configuration eliminates the need for time-consuming manual setup processes while maintaining full adaptability of sensor functions to different installation scenarios.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If communication interfaces and external units are required for parameterization, then sensor can be configured, but the sensor requires additional hardware components

Engineering Contradiction:
Improveparameterization capabilityVSAvoidhardware components
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent extracts and eliminates the need for external parameterization devices, communication interfaces, and manual configuration hardware by implementing an integrated gravity sensor that enables automatic self-determination of installation orientation and automatic selection of sensor functions. This extraction reduces the quantity of hardware components while preserving full parameterization capability.

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

Enables simple and hardware-software efficient parameterization of sensors, allowing them to be installed in various positions with optimized sensor functions without additional equipment, and ensures fail-safe operation in safety-related applications.

Implementation Method 1

at least one gravity sensor (9a, 9b) is integrated into the sensor (1), with measurement signals from the gravity sensor (9a, 9b) indicating its spatial orientation relative to the direction of gravity (F)

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP4080251B1Sensor and method for operating same
Publication Date: 2024.01.31 LEUZE ELECTRONIC GMBH & CO KG
  • EP4080251B1 patent drawingFigure 1
  • EP4080251B1 patent drawingFigure 2a~3b
  • EP4080251B1 patent drawingFigure 4a~5b

AI summary

The invention relates to a sensor for detecting objects in a monitoring area, comprising sensor components designed for object detection and an evaluation unit in which an object detection signal is generated based on output signals from the sensor components. At least one gravity sensor (9a, 9b) is integrated into the sensor. The measurement signals of the gravity sensor (9a, 9b) indicate its spatial orientation relative to the direction of gravity (F). At least one sensor function is selected in the sensor based on the measurement signals. The invention further relates to a method for operating a sensor.