Electrical device for controlling a vacuum cleaner
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Solution Overview
Problem
Existing systems for machine tools and energy storage modules fail to reliably control vacuum cleaners due to potential unauthorized activation and the challenge of safely switching them off, leading to dust dispersal and health hazards.
Innovation Solution
A wireless communication interface is designed to send registration messages to establish a secure control connection with the vacuum cleaner based on the switching state of the machine tool's drive motor, using authorization parameters and encryption to ensure only authorized devices can initiate control commands, and includes a mechanism for delayed switching off to ensure effective dust extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a wireless communication interface sends control commands to switch the vacuum cleaner on and off based on the switching state of the machine tool, then the vacuum cleaner can be automatically controlled, but unauthorized devices may activate the vacuum cleaner causing dust dispersal and health problems
Solution Approach 1:
The system performs preliminary registration and authorization of the machine tool with the vacuum cleaner before automatic control is enabled. The wireless communication interface establishes a pre-authenticated control connection, so that when the machine tool is switched on, the vacuum cleaner is already authorized to receive control commands, preventing unauthorized activation while maintaining automatic control functionality.
2Loss of energy
If the vacuum cleaner is switched off immediately when the machine tool is switched off, then energy is saved, but dust that is being vacuumed up is released into the environment causing damage and health problems
Solution Approach 1:
The system implements a delayed shutdown mechanism where the vacuum cleaner continues to operate for a predetermined period after the machine tool is switched off. This cushioning period allows the vacuum cleaner to finish extracting remaining dust before shutting down, preventing dust dispersal while minimizing energy consumption by limiting the extended operation time.
3Adaptability or versatility
If multiple electrical devices of the same type are within reception range of the vacuum cleaner, then the system is susceptible to interference, but establishing individual control connections for each device increases system complexity
Solution Approach 1:
The wireless communication interface implements a feedback mechanism where the vacuum cleaner receives registration messages from machine tools and responds with authorization confirmations. Each device undergoes a registration process that establishes unique control connections, allowing multiple devices to be managed individually through standardized registration and authentication protocols, maintaining adaptability without excessive complexity.
Data Source
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AI summary
The invention relates to an electrical device in the form of a machine tool (20) or an energy storage module (40) for supplying electric power to a machine tool (20), wherein the energy storage module (40) has a module housing (41) having a device interface for detachable connection to the machine tool (20), wherein the machine tool (20) has a drive motor (22) for driving a tool receptacle (23) on which a tool (38) provided for machining a workpiece (W) is arranged or arrangeable, wherein the drive motor (22) is switchable using a switching element (24) of the machine tool (20) and/or of the energy storage module (40), wherein the electrical device has a wireless communication interface (60, 60C) for wireless communication with an external communication apparatus (100) that forms part of a vacuum cleaner (70, 870) provided for vacuuming dust produced by the machine tool (20), and wherein the wireless communication interface (60, 60C) is designed to send at least one control command for controlling, in particular switching on and/or switching off, the vacuum cleaner (70, 870) on the basis of a switching state of the switching element (24) to the external communication apparatus (100) via a wireless control connection (S1, S2). The wireless communication interface (60, 60C) is designed to send at least one registration message (440) to the external communication apparatus (100) for setting up the control connection (S1, S2) to the vacuum cleaner (70, 870) on the basis of a switching state of the switching element (24).