Electric Field Warning Device With Motion-Based Hazard Estimation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing warning devices for electrical installations fail to reliably distinguish between dangerous approaches to low-voltage and medium/high-voltage components, leading to unnecessary warnings and requiring users to carry multiple devices or manually adjust settings, which can compromise safety.
Innovation Solution
A warning device that combines a sensor unit to detect electric fields with an acceleration sensor to evaluate movement and field strength changes, estimating hazard potential and adjusting warning signals accordingly, regardless of voltage range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a warning device uses only electric field strength detection, then it can detect the presence of electrical components, but it cannot reliably distinguish between dangerous approaches to low-voltage and medium/high-voltage components, leading to false alarms
Solution Approach 1:
The patent changes the detection parameters from solely electric field strength to a combination of electric field strength and its rate of change over time. By monitoring how the field strength changes as one approaches the electrical component, the system can distinguish between safe and dangerous distances more reliably, reducing false alarms while maintaining detection accuracy.
2Adaptability or versatility
If users carry multiple warning devices or manually adjust settings for different voltage ranges, then coverage across all voltage ranges is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent makes a single warning device universal by enabling it to automatically adapt to different voltage ranges through dynamic threshold adjustment. The device evaluates the rate of change of electric field strength and automatically sets appropriate warning thresholds, eliminating the need for users to manually configure settings or carry multiple specialized devices.
3Adaptability or versatility
If manual adjustment of warning thresholds is required, then adaptability to different voltage ranges is improved, but ease of operation and response time worsen
Solution Approach 1:
The warning device performs self-service by automatically evaluating the electric field characteristics and adjusting its warning thresholds without user intervention. The system monitors the rate of change of field strength and autonomously configures appropriate warning levels, saving time and ensuring optimal settings are always active.
4Ease of operation
If a fixed warning threshold is used, then ease of operation is improved, but false alarms increase and detection precision deteriorates
Solution Approach 1:
The patent introduces dynamics into the warning system by making the threshold adaptive rather than fixed. The warning threshold dynamically adjusts based on the evaluated rate of change of electric field strength, allowing the simple device to achieve high detection precision across varying conditions without compromising ease of operation.
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 reliable detection of dangerous approaches to electrical components across various voltage ranges, reducing false alarms and enhancing user safety by adapting warning signals to the specific hazard level.
Implementation Method 1
a sensor unit SE which detects the electric field of the at least one component L in the form of a measurement signal M
Implementation Method 2
an acceleration sensor BS which detects an acceleration of the warning device W, preferably in a 3-dimensional space, in the form of acceleration data BD
Data Source
Figure 1
AI summary
The invention relates to a warning device (W) for detecting an approach to an electrical installation, which has at least one live component (K), in particular an electrical conductor (L), surrounded by an electric field (E). The warning device (W) comprises at least one sensor unit (SE) that detects the electric field (E) of the at least one component (L) in the form of a measurement signal (M), an acceleration sensor (BS) that detects an acceleration of the warning device (W), preferably in a 3-dimensional space, in the form of acceleration data, and an evaluation unit (AW) that is configured to estimate a respective hazard potential from the acceleration data (BD) detected by the acceleration sensor (BS) and from the measurement signal (M) detected by the sensor unit (SE) in order to control the output of at least one warning signal.and to determine, from the acceleration data (BS) recorded by the acceleration sensor (BD), at least a current position of the warning device (W) in relation to a position preceding the current position and an associated change in the measurement signal (M) recorded by the sensor unit (SE), and to estimate the respective hazard potential from the change in the measurement signal (M) and a change in the position of the warning device (W) between the respective determined current position and the respective preceding position.