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 incorporates 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 dust collector transmits an interlock operation request signal to the electric working machine, and the machine responds with an interlock response signal containing identification information. This feedback mechanism ensures that the dust collector can verify which machine transmitted the signal and confirm interlock capability before activating the interlock operation, preventing inadvertent activation by incompatible machines.
Solution Approach 2:
The interlock response signal acts as an intermediary verification step between the initial interlock operation request and the actual activation of the dust collection function. This intermediate signal exchange allows the system to determine whether the transmitting machine requires interlock operation before the dust collector activates, resolving the contradiction between ease of operation and reliability.
2Device complexity
If the dust collector uses wireless communication to detect operation state, then no signal line is needed between dust collector and electric working machine, but the dust collector cannot reliably distinguish between multiple transmitting machines
Solution Approach 1:
The electric working machine provides feedback by transmitting an interlock response signal that includes identification information (such as machine type or model data). This allows the dust collector to identify which specific machine transmitted the interlock operation request signal wirelessly, enabling reliable distinction between multiple transmitting machines without requiring physical signal lines or manual configuration.
3Speed
If the dust collector activates interlock operation immediately upon receiving a signal, then the response time is fast, but the operation may not align with the actual transmission timing of the electric working machine
Solution Approach 1:
The dust collector transmits an interlock operation request signal and waits for an interlock response signal from the electric working machine before activating the dust collection function. This feedback-based timing synchronization ensures that the dust collector activates at the appropriate moment when the machine actually requires dust collection, rather than activating immediately upon receiving any signal, thus aligning operation timing with actual transmission timing while maintaining fast response through automated signal exchange.
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.