Dust Collector Interlock Control for Machine-Specific Activation
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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 receiving any transmitted signal from electric working machines, then the interlock operation can be initiated easily, but the dust collector may be operated contrary to user intention when signals from machines that do not require interlock are received
Solution Approach 1:
The dust collector applies different response characteristics to different signal sources by identifying the electric working machine that transmitted the signal. The control unit examines identification information in the received signal and compares it with stored identification information to determine whether to activate interlock operation, treating authorized machines differently from unauthorized ones.
Solution Approach 2:
The control unit performs preliminary identification verification before activating the interlock operation. By checking the identification information in the received signal against stored identification information in advance, the system determines whether the signal source is an authorized electric working machine, preventing erroneous activation before it occurs.
2Reliability
If identification information is stored in the dust collector to verify machine identity, then the accuracy of interlock operation activation is improved, but the device complexity increases
Solution Approach 1:
The dust collector stores copies of identification information from authorized electric working machines in its storage unit. This allows the control unit to verify machine identity by comparing received identification signals against stored copies, enabling reliable identification without requiring complex verification mechanisms or additional hardware on the electric working machines themselves.
3Ease of operation
If wireless communication is used for interlock operation signaling, then the ease of operation is improved by eliminating signal lines, but the reliability may be compromised by receiving signals from unintended machines
Solution Approach 1:
The wireless communication system implements differentiated response based on signal source identity. The control unit analyzes identification information embedded in wireless signals from different electric working machines and applies appropriate interlock operation responses only to authorized sources, treating each machine type differently despite using the same wireless communication channel.
Solution Approach 2:
The system performs preliminary verification of the wireless signal source by comparing identification information in the received signal with stored identification information before activating interlock operation. This advance verification ensures that only signals from authorized electric working machines trigger the interlock function, preventing erroneous activation from unauthorized sources.
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.