Linear Conveyor Slider Identification and Driver Control
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Solution Overview
Problem
Existing linear conveyor systems face challenges in precisely driving sliders across multiple assigned regions with multiple drivers, as they require complex control to specify the correct driver for each slider, leading to inefficiencies and potential power wastage due to unnecessary magnetic fields.
Innovation Solution
A linear conveyor system with a host control device transmitting control signals including identifiers and drive commands to multiple drivers, where each driver reads the identifier from the slider and supplies current based on the command, allowing precise driving by associating each slider with its corresponding driver without specifying individual drivers, and optimizing power use by only supplying current when the identifier is read.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex control is used to specify the correct driver for each slider, then driving precision is improved, but device complexity increases
Solution Approach 1:
The slider performs self-identification by storing and providing its own identifier (ID) to the driver. The reader reads the ID directly from the slider's storage, enabling the slider to automatically identify itself without requiring complex external control to specify which driver should control which slider.
Solution Approach 2:
Instead of the control system specifying which driver should drive which slider (top-down control), the slider identifies itself to the driver (bottom-up identification). The driver reads the slider's ID and autonomously determines which drive command to execute, inverting the traditional control hierarchy.
2Reliability
If current is supplied to all drivers, then driving reliability is improved, but energy consumption increases
Solution Approach 1:
Current is supplied only to the specific driver that corresponds to the slider's current position, rather than supplying current to all drivers uniformly. The driver reads the slider's ID to determine local activation, ensuring reliable driving of the active slider while avoiding unnecessary energy consumption in inactive regions.
Solution Approach 2:
Instead of activating all drivers (excessive action), only the necessary driver corresponding to the slider's position is activated (partial action). This partial activation maintains sufficient driving reliability for the active slider while significantly reducing overall energy consumption.
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
This solution enables precise driving of sliders across multiple regions by automatically matching sliders with their corresponding drivers, reducing power consumption and movement disturbances, and allowing for efficient tracking of slider movements by changing drivers as needed.
Implementation Method 1
The linear module drives the slider by an electromagnetic interaction between the stator and the electromagnet caused by supplying a current to the electromagnet
Data Source
AI summary
The identifier for identifying the slider is given to this slider. In contrast, the control signal transmitted to the plurality of linear drivers indicates the position command value and the speed command value for the slider and the identifier of this slider in association with each other. The linear driver reads the identifier for identifying the slider from this slider overlapping the assigned region thereof and supplies the current corresponding to the position command value and the speed command value associated with this identifier by the control signal to the linear motor stators. In this way, it is possible to cause the linear driver corresponding to the assigned region, in which the slider is present, to precisely drive the slider.