Advisor professor neal anderson michael baccari peter bian michael coughlin avi noy
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Advisor: Professor Neal Anderson Michael Baccari Peter Bian Michael Coughlin Avi Noy. Irregular Object Dimensioning System. Agenda. Background MDR Specification Progress Report Challenges Future Plans Summary. Background. Sorting facilities’ conveyer belts.

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Irregular Object Dimensioning System

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Advisor: Professor Neal Anderson

Michael Baccari

Peter Bian

Michael Coughlin

Avi Noy

Irregular Object Dimensioning System


Agenda

  • Background

  • MDR Specification

  • Progress Report

  • Challenges

  • Future Plans

  • Summary


Background

  • Sorting facilities’ conveyer belts.

  • Components of sort system: Photo eye, laser measuring heads, set of 6 line-scan cameras.


Background (Cont’d)

  • Irregularly shaped objects

  • Current issues with the dimensioning component.

  • “The irregular approval.”


Background (Cont’d)

  • Dimensions used for storage area on cargo planes

  • Minimize cuboidal volume of irregularly shaped objects

    • Increases profits

    • Save cargo space

  • “Irregular Approval”

    • Guideline test for major shipping companies

      • Half inch margin error

      • “Sputnik” test


MDR Specification

  • Software Progress

    • Demo of algorithms for dimensional reconstruction from simulated laser data input

    • Demo of image processing algorithm with basic edge detection from camera

  • Working Hardware Components

    • Conveyor Belt

    • 2 laser measuring heads (LMS 200)

    • 2 Cameras

    • LED Light Sources

    • Photo Eye

  • Research

    • Multiplexing

    • Image Processing

    • Depth Maps

  • Quantifiable Requirement Specifications

    • Irregular Approval

    • Proposed System Improvement


Progress Report - System Block Diagram


Progress Report (Cont’d)

  • Hardware Components

    • LMS – Laser Measuring Heads

    • One 2-D camera

    • Two LEDs

    • Photoeye

    • Conveyor belt


Progress Report (Cont’d)

  • LMS Setup


Progress Report (Cont’d)

  • LMS Initialization


Progress Report (Cont’d)

  • 2-D Camera


Progress Report (Cont’d)

  • LEDs


Progress Report (Cont’d)

  • Photoeye


Progress Report (Cont’d)

  • Photoeye (Cont’d)

    • IR Led transmitter – Hamamatsu part #L2690-02

      • Forward current IF = 50mA

      • R = VCC/IF = 5/50mA = 100Ω

    • Digital output photo IC – Hamamatsu part #L6289

      • Photodiode

      • Schmitt trigger circuit

      • Output resistor

    • RL = 1.2kΩ

    • Ccoupling = 0.01uF


Progress Report (Cont’d)

  • Photoeye – Results


Progress Report (Cont’d)

  • Conveyer belt demo video


Progress Report (Cont’d)

  • Image processing algorithm

    • SUSAN (Smallest Univalue Segment assimilating Nucleus) Principle


Progress Report (Cont’d)

  • Image processing algorithm demo


Progress Report (Cont’d)

  • Laser edge detection and dimensional algorithm


Challenges

  • Blind spots


Challenges (Cont’d)

  • Current algorithm

    • 2 dimensional axis

  • No algorithm for 3 dimensional axis

  • All edges and protrusions mapped out for irregular object

  • Multiplexing cameras with LMS heads


Future Plans

  • Creation of 3 dimensional axis algorithm

  • Implementation

    • Multiplexing of two sets of data

    • Execution of new dimensioning algorithm

  • Possible improvement of edge detection for LMS and cameras

  • Construction of redesigned control box


Summary

  • MDR Specification

  • Improve accuracy of dimensioning of irregularly shaped objects

  • “Irregular Approval”

    • Half inch margin of error


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