Vacuum cleaner
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Solution Overview
Problem
Existing vacuum cleaners for machine tools experience communication interference and unauthorized activation due to wireless communication with unauthorized devices, leading to inefficiencies and potential misoperation.
Innovation Solution
A vacuum cleaner system with an external communication module that can be attached to the suction hose or machine tool, facilitating communication with the vacuum cleaner's internal communication device, and includes sensors to detect movement and distance for secure connection establishment, allowing control via a communication module that can operate independently of the machine tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used between the machine tool and vacuum cleaner, then ease of operation is improved, but communication interference and unauthorized activation occur
Solution Approach 1:
The patent introduces a communication module as an intermediary device that mediates between the machine tool and vacuum cleaner. This module receives wireless signals from the machine tool, validates them, and then communicates with the vacuum cleaner, thereby preventing direct unauthorized communication while maintaining wireless operation convenience
Solution Approach 2:
The communication module implements a feedback mechanism where it sends registration messages to the vacuum cleaner to establish control connections. The vacuum cleaner responds with acknowledgment signals, creating a verified communication loop that ensures reliability while maintaining wireless operation
2Ease of operation
If wireless communication interface is integrated into the vacuum cleaner, then ease of operation is improved, but unauthorized devices can activate the vacuum cleaner
Solution Approach 1:
The communication module serves as a security intermediary that filters and validates all wireless commands before they reach the vacuum cleaner. It checks registration messages and control signals, allowing only authorized communications to pass through, thus preventing unauthorized activation while preserving wireless control functionality
Solution Approach 2:
The system implements preliminary authentication through registration messages sent by the communication module before allowing control connections. This pre-validation mechanism prevents unauthorized devices from activating the vacuum cleaner by establishing a trusted communication channel in advance
3Reliability
If a communication module is added outside the vacuum cleaner housing, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the communication function into a separate, movable module that can be attached to either the machine tool or vacuum cleaner. This segmentation allows the communication reliability function to be isolated and optimized without permanently complicating the main vacuum cleaner structure, as the module can be detached or repositioned
Data Source
Figure 1
Figure 2~3
Figure 4~15
AI summary
The invention relates to a vacuum cleaner (70, 870) for extracting dust generated by a machine tool (20), wherein the vacuum cleaner (70, 870) can be controlled by an electrical device in the form of the machine tool (20) or an energy storage module (40) for supplying electrical power to the machine tool (20), which has a drive motor (22) for driving a tool holder (23) on which a tool (38) intended for machining a workpiece (W) is or can be arranged, wherein the vacuum cleaner (70, 870) has a vacuum housing (71; 871) with a dirt collection chamber for collecting dirt separated from a suction stream (S) and a suction unit (75) for generating the suction stream (S), wherein the vacuum housing (71;871) a suction inlet (72) for connecting a suction hose (15) to establish a flow connection for the suction flow (S) with the machine tool (20) is provided, wherein the vacuum cleaner (70, 870) has an external communication device (100) for a wireless control connection (S1, S2) with a wireless communication interface (60, 60C) of the electrical device and for receiving at least one control command for controlling, in particular switching on and/or off, the vacuum cleaner (70, 870), in particular the suction unit (75), via the control connection (S1, S2). The vacuum cleaner (70, 870) has at least one communication module (300) arranged or arrangable remotely from the vacuum cleaner housing (71; 871) for maintaining and/or establishing the control connection (S1, S2) between the electrical device and the vacuum cleaner (70, 870).