Lifting Magnet Readiness Notification via Excitation Power Sensing
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Solution Overview
Problem
Conventional magnet working machines lack a notification system to inform operators when the attraction quantity of the lifting magnet reaches its maximum, leading to delays in starting conveyance work and reduced work efficiency.
Innovation Solution
A notification system that includes a detector to monitor voltage, current, or power supplied to the lifting magnet, a determination part to calculate the attraction quantity, and a notification control part to alert the operator via a notifier when the maximum attraction quantity is reached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator waits for the attraction quantity to reach maximum before starting conveyance work, then the load attraction reliability is improved, but the work efficiency deteriorates due to operator hesitation and delay in starting conveyance work
Solution Approach 1:
The system implements feedback by detecting the attraction quantity through voltage/current sensors and providing real-time notification to the operator when the maximum attraction quantity is reached. This feedback loop eliminates operator hesitation by clearly indicating when the magnet is ready for conveyance work, thus improving work efficiency while maintaining attraction reliability.
Solution Approach 2:
The notification device acts as an intermediary between the lifting magnet system and the operator. It translates the complex magnetic attraction state into a simple, clear notification that informs the operator when maximum attraction is achieved, enabling timely conveyance work without compromising attraction reliability.
2Productivity
If the operator starts conveyance work before the attraction quantity reaches maximum, then the work efficiency is improved, but the load attraction reliability deteriorates due to insufficient attraction quantity causing load falling-off
Solution Approach 1:
The detection and notification system provides real-time feedback on attraction quantity status, allowing the operator to make informed decisions. The operator receives clear information about when maximum attraction is achieved, enabling them to start conveyance work at the optimal moment without risking load dropping, thus maintaining both efficiency and reliability.
3Device complexity
If no notification system is provided, then the device complexity is reduced, but the work efficiency deteriorates due to operator hesitation
Solution Approach 1:
A relatively simple notification system using standard sensors and display devices provides critical feedback to the operator about attraction status. This minimal addition to system complexity delivers significant productivity improvement by eliminating operator hesitation, demonstrating how simple feedback mechanisms can yield substantial efficiency gains.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system increases work efficiency by promptly notifying operators when the attraction quantity reaches its maximum, allowing for timely initiation of conveyance work.
Implementation Method 1
a detector which detects at least one of a voltage, an electric current, and an electric power supplied for exciting the lifting magnet
Implementation Method 2
excitation of the lifting magnet is started in response to an input of an attraction instruction by an operator
Data Source
AI summary
A notification system includes: a notifier which notifies an operator of a state of a lifting magnet; a sensor which detects at least one of a voltage, an electric current, and an electric power supplied for exciting the lifting magnet; a determination part which determines, based on detection data from the sensor, whether an attraction quantity of the lifting magnet reaches a maximum attraction quantity after excitation of the lifting magnet is started; and a notification control part which causes the notifier to notify that the attraction quantity reaches the maximum attraction quantity when the determination part determines that the attraction quantity reaches the maximum attraction quantity.