External Data Processing Device for Hand-Held Power Tool Operator Safety
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Solution Overview
Problem
Existing hand-held power tools lack effective operator protection and working safety measures, particularly in monitoring and managing the physical burdens on users, such as vibration, noise, and force, which can lead to user fatigue and injury.
Innovation Solution
A method involving a separate data processing device, connected via a wireless interface to the hand-held power tool, that processes and monitors application quantities like vibration, noise, and force, and compares them to user-specific parameters to provide real-time feedback and protection, including the option to block tool operation if safety limits are exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate data processing device is used to monitor application quantities, then operator protection and working safety are improved, but device complexity increases
Solution Approach 1:
The monitoring system is segmented into separate functional modules: a data processing device worn by the operator and the hand-held power tool itself. This segmentation allows the monitoring function to be independent from the tool operation, improving reliability while distributing system complexity across separate components rather than consolidating everything in one device.
2Reliability
If application quantities are monitored and documented, then user safety is improved, but loss of time for data processing increases
Solution Approach 1:
The data processing device continuously monitors application quantities during tool operation without interrupting the work process. Data is collected, processed, and analyzed in real-time or near real-time, ensuring continuous safety monitoring while minimizing time loss through automated processing rather than manual intervention.
Solution Approach 2:
The system performs self-service by automatically collecting, processing, and analyzing data without requiring external intervention. The data processing device autonomously monitors application quantities, compares them against safety thresholds, and generates alerts or documentation without needing manual data entry or analysis, thereby minimizing time loss.
3Measurement precision
If the data processing device is mechanically connected to the power tool, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
A wireless communication interface acts as an intermediary between the data processing device and the hand-held power tool. This intermediary enables data transmission without physical mechanical connection, maintaining measurement precision through digital signal transfer while preserving the portability and ease of operation of both the tool and the monitoring device.
Data Source
AI summary
A method is proposed for operating at least one hand-held power tool, in which a data processing device, realized separately from the hand-held power tool, processes at least one application quantity, in particular a vibration quantity, with respect to a user.