Linear Shuttle Group Control for Collision-Free Conveying
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Solution Overview
Problem
Conventional linear conveying devices face complications in processing and increased risk of shuttle collisions as the number of conveying members increases, leading to potential delays.
Innovation Solution
A linear conveying device that controls multiple shuttles through a master-slave configuration, where at least two shuttles form an operating group with one as a master and the others as slaves, allowing control based on relative positions to prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual control of each conveying member is implemented, then precise control of each shuttle is achieved, but processing complexity increases and collision risk rises
Solution Approach 1:
The control system segments shuttles into master shuttles and slave shuttles. Master shuttles are controlled individually based on their position on the guide portion, while slave shuttles are controlled based on their relative position from the master shuttle. This segmentation reduces control complexity while maintaining collision prevention.
Solution Approach 2:
The master shuttle acts as an intermediary reference for controlling slave shuttles. Instead of controlling each slave shuttle independently with complex processing, the slave shuttles follow the master shuttle's position with a predetermined distance, simplifying the control logic while ensuring safe operation.
2Productivity
If more shuttles are used to increase productivity, then conveying capacity improves, but control processing becomes more complicated and collision risk increases
Solution Approach 1:
By segmenting the fleet of shuttles into master and slave groups, the system can efficiently manage a larger number of shuttles without proportionally increasing control complexity. Each master shuttle manages its own slave shuttles, distributing the control burden.
Solution Approach 2:
Slave shuttles are merged into the control framework of master shuttles, allowing multiple shuttles to be managed as a coordinated group rather than independent entities. This combining approach reduces the overall control processing complexity while maintaining high conveying capacity.
3Measurement precision
If individual position control of each shuttle is implemented, then precise positioning is achieved, but processing time increases causing delays
Solution Approach 1:
The relative positions between master and slave shuttles are predetermined and pre-programmed into the control system. When a master shuttle is positioned, the positions of its slave shuttles are automatically determined based on these predetermined distances, eliminating the need for real-time calculation of each shuttle's position and reducing processing delays.
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 device effectively prevents shuttle collisions with simplified processing by controlling shuttles based on relative positions, reducing the complexity and likelihood of collisions among multiple shuttles.
Implementation Method 1
a linear motor with electromagnets arranged in it and a conveying member including a permanent magnet. The electromagnet and the permanent magnet constitute a linear motor system.
Data Source
AI summary
In a linear conveying device for conveying articles with a linear motor, of a plurality of shuttles, at least two are combined together to form a first operating group. In the first operating group, one of the shuttles in it is taken as a first master shuttle, and any other is taken as a first slave shuttle. The first master shuttle is controlled based on its position on the guide portion. The first slave shuttle is controlled based on its relative position from the first master shuttle.