Synchronized Light Strip for Conveyor Product Status

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Solution Overview

Problem

Operators on linear conveyor devices face difficulties in accurately assigning product states, especially for stacked products, due to the lack of direct and synchronized visual cues, leading to potential errors and distractions from primary tasks.

Innovation Solution

A controllable light strip is arranged parallel to the conveyor, emitting light signals that synchronize with product movement and extend in length to represent product status, allowing clear assignment even for stacked items, with varying colors and brightness to differentiate product types and statuses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traffic light signalmen at fixed positions are used to display product status, then the product status can be visualized, but the operator cannot establish a direct relationship between the signal and the specific product, leading to assignment errors

Engineering Contradiction:
Improveproduct status assignment accuracyVSAvoidoperator workload
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent uses spray markings that replicate the product status information directly onto the product surface. The spray marking creates a visual copy of the status (e.g., colored dots or patterns) that travels with the product along the conveyor, allowing the operator to see the status information directly associated with each product without needing to reference separate display devices or establish relationships between fixed signals and moving products.

Inventive Principle:
Principle #26Copying

2Loss of information

If spray markings are applied to products to indicate status, then direct assignment is achieved, but permanent color contamination of the product occurs which is not always desired

Engineering Contradiction:
Improveproduct status assignment accuracyVSAvoidproduct contamination
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The spray marking uses inexpensive, temporary materials that can be easily applied and removed or that naturally degrade. The marking is designed to be transient rather than permanent, allowing it to serve its information-carrying function during conveyor operation then fade or be washed away, avoiding permanent contamination of the product while maintaining assignment accuracy during the critical processing window.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Loss of information

If the light strip emits light signals that extend in length to represent product status, then clear visualization of product status is achieved, but the device complexity increases

Engineering Contradiction:
Improveproduct status visualization clarityVSAvoiddisplay device complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The light strip is divided into multiple independently controllable segments or zones along its length. Each segment can be activated individually to correspond with specific product positions or status types. This segmentation allows the system to display different information at different locations along the conveyor without requiring a completely complex display mechanism, as each segment can be controlled separately based on simple position and status data.

Inventive Principle:
Principle #1Segmentation

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

Ensures precise and continuous visualization of product status along the conveyor, reducing errors and maintaining focus on primary tasks by providing immediate and synchronized visual feedback to operators.

Implementation Method 1

a display device with at least one controllable, arranged light strip is arranged parallel to the linear conveyor device, with the light strip being able to emit light signals

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentEP3514084B1Product status display method for products conveyed on a linear conveyor device
Publication Date: 2020.07.29 SELMATEC SYST GMBH
  • EP3514084B1 patent drawingFigure 1
  • EP3514084B1 patent drawingFigure 2
  • EP3514084B1 patent drawingFigure 3

AI summary

The invention relates to a product status indication method for products (P) conveyed on a linear conveyor (2), in which products can be conveyed on a linear conveyor (2) and a display device (1) with at least one controllable, arranged light band (11) is arranged parallel to the linear conveyor (2), wherein the light band (11) can emit light signals (12) and the light signals (12) are movable synchronously with the products (P) placed on the linear conveyor (2), wherein at least the length of the respective conveyed product (P) is detected and the product is represented in its length in the conveying direction in the respective associated light signal (12).Furthermore, the invention relates to a product status display arrangement with a display device (1) and a linear conveyor device (2) for conveying products (P) placed on the linear conveyor device (2), wherein the display device (1) is equipped with at least one light strip (11) that can be controlled as required.