Hand-Held Power Tool PPE Verification for Safe Activation
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Solution Overview
Problem
Hand-held power tools often operate without ensuring the operator is wearing necessary protective equipment, posing safety risks.
Innovation Solution
A method where an infrastructure unit monitors and controls the power tool's operating state based on whether protective equipment is worn by the operator, using IDs and signals to activate the tool's electrical energy supply only when the equipment is present, integrating a mobile functional unit within the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hand-held power tool is allowed to operate without checking for protective equipment, then the ease of operation is improved, but the safety of the operator deteriorates
Solution Approach 1:
The system performs preliminary verification by detecting whether protective equipment is worn before allowing the power tool to operate. The mobile functional unit checks for the presence of protective equipment (such as helmets, ear protection, or eye protection) and only enables the electromotive drive after successful verification, preventing unsafe operation from the outset.
Solution Approach 2:
A mobile functional unit acts as an intermediary between the protective equipment and the power tool's control system. This unit receives identification signals from the protective equipment, verifies compliance, and mediates the enabling or disabling of the power tool's active operating state based on the verification result.
2Object-affected harmful factors
If an infrastructure unit monitors and controls the power tool's operating state based on protective equipment detection, then the operator safety is improved, but the device complexity increases
Solution Approach 1:
The protective equipment itself performs the verification function through integrated identification units that automatically transmit their presence and type information to the mobile functional unit. The system serves itself by having the protective equipment provide its own verification data without requiring manual checking or complex external monitoring infrastructure.
Solution Approach 2:
The patent replaces complex mechanical monitoring systems with electronic identification and signal transmission. Instead of using mechanical sensors or visual inspection procedures, the system uses electronic ID units in the protective equipment that communicate wirelessly or via conductive connections with the mobile functional unit, simplifying the overall system architecture.
Data Source
AI summary
A method enables at least one active operating state of a hand-held power tool with at least one infrastructure unit as a function of whether protective equipment is carried and/or worn by an operator of the hand-held power tool. A mobile functional unit is integrated into the hand-held power tool. The mobile functional unit is configured to control the at least one active operating state of the hand-held power tool by (i) transmitting at least one ID of a first protective equipment element of a first piece of protective equipment to a first infrastructure unit, the first infrastructure unit receiving the at least one ID of the first protective equipment element of the first piece of protective equipment, and (ii) transmitting at least a first signal from the first infrastructure unit to the mobile functional unit.