Linear Transport Carriage Identification Using Magnetic Vector Fields

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Solution Overview

Problem

Existing linear transport systems require carriages to move significantly to reach identification detection devices, making the identification process time-consuming and inefficient.

Innovation Solution

A method using magnetic field generators on carriages with distinct magnetic vector fields to identify individual carriages through measurement signals, eliminating the need for additional identification units and allowing for efficient identification regardless of the carriage's location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If carriages are equipped with additional identification units (barcode, memory chip, alphanumeric code) and identification detection devices, then individual identification of carriages is enabled, but the identification process requires carriages to travel significant distances to reach detection devices, increasing identification time and reducing efficiency

Engineering Contradiction:
Improveidentification accuracyVSAvoididentification time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent combines the identification function with the existing position detection system by integrating identification detection at multiple positions along the transport path. This merging eliminates the need for separate identification units and allows identification to occur during normal carriage movement without requiring additional travel time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from single-point identification (requiring carriage travel to a specific detection device) to multi-point identification along the transport path. By distributing detection capabilities across multiple positions, the system enables identification at any location, converting a time-consuming sequential process into a parallel multi-location system.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If carriages move significantly to reach identification detection devices, then identification can be performed using existing detection technology, but system efficiency decreases and identification becomes time-consuming

Engineering Contradiction:
Improveuse of existing detection technologyVSAvoidsystem efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent makes the position detection system universal by enabling it to perform both position monitoring and identification functions. The same sensors and detection infrastructure used for tracking carriage positions are also used for identification, eliminating the need for separate identification detection devices and maintaining high system efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system enables carriages to be identified during their normal movement without requiring dedicated identification trips or additional resources. The existing position detection system serves the dual purpose of monitoring and identification, allowing the system to identify carriages as part of its regular operational cycle.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If multiple sensors are arranged regularly along the transport path to determine carriage position, then position detection capability is improved, but the cost and complexity of the system increases due to additional sensors and processing requirements

Engineering Contradiction:
Improveposition detection accuracyVSAvoidsensor arrangement complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent makes the position detection system universal by enabling it to perform both position monitoring and identification functions. The same sensors and detection infrastructure used for tracking carriage positions are also used for identification, eliminating the need for separate identification detection devices and maintaining high system efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables rapid and cost-effective identification of carriages without the need for additional identification units, improving efficiency and reducing the time required for identification, while also optimizing the use of existing position detection systems.

Implementation Method 1

the first carriage has a first magnetic field generator that is designed to generate a first magnetic field, and the second carriage has a second magnetic field generator that is designed to generate a second magnetic field

Methodology Applied
Scientific EffectMagnetic field generation: Magnetic Field

Implementation Method 2

a position of a transport element may be determined by way of a multiplicity of sensors, for example magnetic field sensors

Methodology Applied
Scientific EffectMagnetic field detection: Hall Effect

Data Source

PatentUS12057795B2Method for identifying a carriage of a linear transport system
Publication Date: 2024.08.06 BECKHOFF AUTOMATION GMBH
  • US12057795B2 patent drawing
  • US12057795B2 patent drawing
  • US12057795B2 patent drawing

AI summary

A linear transport system comprises a first carriage and a second carriage, a linear motor for driving the first carriage and the second carriage and a guide rail. The linear motor comprises a stator and a first and a second rotor. The stator has a plurality of drive coils that are arranged along the guide rail individual motor modules comprise a plurality of drive coils. The first rotor is arranged on the first carriage and the second rotor is arranged on the second carriage. The first carriage has a first magnetic field generator. The second carriage has a second magnetic field generator. The first magnetic field generator differs from the second magnetic field generator at least in terms of its magnetic vector field, wherein the magnetic fields of the magnetic field generators are detected to identify the corresponding carriage.