Dust collector
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Solution Overview
Problem
A dust collector may inadvertently start an interlock operation with multiple electric working machines, leading to unintended operation when signals from machines that do not require interlock are received.
Innovation Solution
The dust collector includes an interlock operation control portion with a storage unit for identification information, allowing it to determine which electric working machines require interlock operations by verifying identification signals within received commands, and can set the timing of interlock operations based on these signals, ensuring accurate and intended operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the dust collector starts interlock operation upon receipt of a single transmitted signal from an electric working machine, then the interlock operation can be initiated easily, but the dust collector may be operated inadvertently by signals from machines that do not require interlock
Solution Approach 1:
The patent changes the parameter of signal verification by introducing identification information matching. Instead of responding to any signal, the dust collector now verifies that the received signal contains matching identification information stored in its storage unit, thereby distinguishing between machines that require interlock and those that do not
Solution Approach 2:
The system implements a feedback mechanism where the dust collector receives signals containing identification information, compares this information with stored identification data, and only initiates interlock operation when a match is found. This feedback loop ensures reliable operation initiation only for appropriate machines
2Reliability
If the dust collector uses identification information verification to determine which machines require interlock, then erroneous operation is prevented, but the device complexity increases due to storage unit and verification mechanisms
Solution Approach 1:
The patent uses copying by storing identification information (a data copy) in the dust collector's storage unit. This allows the system to verify machine identity without requiring complex hardware modifications on the electric working machine side, maintaining simplicity while improving reliability
Solution Approach 2:
The identification information acts as an intermediary element between the electric working machine and the dust collector. Rather than requiring direct complex communication protocols or additional components on the machine side, the simple identification data transfer enables reliable verification with minimal added complexity
Data Source
AI summary
A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.