Automated rice classifier

Date of Publication

2002

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Manufacturing Engineering and Management

College

Gokongwei College of Engineering

Department/Unit

Manufacturing Engineering and Management

Thesis Adviser

Lord Kenneth M. Pinpin

Defense Panel Chair

Nilo T. Bugtai

Defense Panel Member

Mark Jansson L. Kho
Marty Marx Teng

Abstract/Summary

The Automated Rice Classifier separates a 100g sample into three sub-samples, Headrice, Brokens, and Brewers by use of perforated sheets. It incorporates a vision system that captures the total surface area of each sub-sample and calculates the percentages of each sub-sample of the total sample. The software then processes these percentages using NFA Standards for Milled Rice and determines into which grade the rice sample falls into.

It consists of the shaker mechanism, a control box, and capturing pan area. The shaker mechanisms movements make use of pneumatic actuators. Movements that include the oscillating motion, tilting motion, and tray door opening motion. These pneumatics are controlled by the software via interfacing circuit using opto-isolators, a relay driver, and relays. The software implements these movements either through pre-programmed intervals or manual operation.

The software filters the captured image contained in the capturing pan area. Using a histogram to more accurately determine threshold level the rice grain is separated from the background using a threshold filter. The total surface area is then counted.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU15345

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

1 v. (various foliations) : ill. (some col.) ; 28 cm.

Keywords

Rice; Rice--Processing--Machinery

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