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Job Fair Pervasive Computing SystemDesign ReportProject Team: Dec0912http://seniord.ece.iastate.edu/dec0912/

Client: Iowa State University

Faculty Adviser: Qiao, Daji, PhDCourse Coordinator: Jason Boyd

Team Members: Adam LeeKartik SubbuNicholas OakmanGabriel Semonis

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ProblemLong lines at certain employers but not othersStudents wasting time waiting for employer or

navigating to find where shortest line is.

NeedSystem to automate the selection process of

which employer to visit next based on student and employer criteria and line lengths.

Problem/Need

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Create a system where students can “check in” at booths to inform system that he/she is waiting in that booth’s respective queue

Inform students in which order they should visit booths if they want to save time

Proposed Solution

The System

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

Case-Scenario

ENTRANCE CHECK-IN

TERMINALS

EMPLOYER BOOTHS

TERMINALS

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Term MeaningEmployer Employer in our case refers to

the entity that stores information on required majors, years, and numbers of students.

Employer Station A laptop owned by Iowa State used for “Employer Check-In”

Employer Check-In The process of checking a student into the an employer station. Normal procedure involves simply swiping the RFID tag

Fair Check-in Students checking into the coliseum and getting their RFID tag

RFID Radio Frequency IdentificationTouchatag A RFID system developed by

Alcatel-Lucent Bell

Unique Terms

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Indoors (65-75˚F)Software is mostly written in PHPWindows Laptops

Pentium III Internet Explorer or Mozilla Firefox Web Browser802.11b, 802.11g, or combo Ethernet cards

Power AvailableLaptop Battery120 Volts 60 Hz

Wireless Internet AvailableSpeed 11 Mbps to 54 Mbps

http://policy.iastate.edu/policy/it/wireless/

Operating Environment

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Functional Prototype System (small-scale)Code and SchematicTesting ResultsUser Manual

Deliverables

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Touchatag RFID readerTouchatag RFID tagsServer

PHP supportmySQL database

Terminal ComputersEmployer Station Laptops

Physical Components

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The Short Range RFID

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InterfaceUSB connection

CompatibilityMicrosoft WindowsMozilla FirefoxInternet ExplorerGoogle Chrome

ConstraintsMust have active

internet connectionMust be logged in to

a Touchatag accountFrequency

13.56MHz

Details

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And Their Tags

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Tags only store their unique ID so all associations must be done on a higher level

Have adhesive on the back so can be easily attached to business cards. Temporarily could be appended to ISU card.

Details

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Pre-Fair

Fair Check-in

Employer Station Check-in/Check-out

Terminal

System Design

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Before the career fair starts, a few things need to be done:

1. Tags must be associated with a unique ID independent of student that will grab it later

2. Students must input their information online to associate their username with their major, year, and interest (full-time or co-op)

3. Information of employers must be inputted based on what majors they accept, what years they take, and what type of position they offer (full-time or co-op)

Pre-Fair

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Registration and AssoctiationStudent Pre-Registration

Student associates email address with his information including: major, year, full-time/co-op selection

Student Tag AssociationStudent can, after

entering the career fair, grab a tag and associate it with their username using a password

Employer RegistrationAssociate employer ID

with their job opportunities based on major, year, full-time/co-op offerings

Employer IP/Scanner AssociationAssociate Employers

to IP addresses or their unique scanners

Example of employer registation GUI

NOTE: the employer registration screen will be made in PHP

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Matching Algorithm

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This procedure can be done using Touchatag’s easy to use interface on their “control panel”. We will configure each tag to be associated with a certain URL f.e. http://www.isucareerfair.com/checkin.php?id=12b23lg

This data will be used later in associating the user with that tag.

Associating ID with Tag

25Control Panel to associate tags to URLS

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Students will go to a website, for example http://www.isucareerfair.com/s_register.php

Here they will be able to create an account based on their ISU username f.e “adamrlee” and then securely submit their major, year, and desired position.

Students Adding Information

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We will be able to input this information based on what information is already available from these employers.

This data will be added to the database before the fair starts.

Employer Information

Employer name

Majors Grades Opportunities

Apple Computer

Computer EngineeringComputer ScienceSoftware Engineering

JuniorSenior

Full TimeCo- Op

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The fair check-in is a term used to describe arriving at the career fair and associating your tag with your username and password.

A form will be at the main check in terminal requesting username and password that was obtained by registering earlier.

How we do this is, since each tag is already associated with an ID, we can check the ID for a username association. If none, then we can simply prompt for a username and password. F.e. http://www.isucareerfair.com/checkin.php?id=12b23lg

Fair Checkin

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This is the most important feature of our system. It is when a student swipes his RFID card to indicate that he is in a queue for an employer.

Employer Station Checkin

Functionality:

1. Check Into Employer Queue2. Indirectly Check out of Other Employer

Queue

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After a student is done visiting a employer, there are 3 ways he can checkout:

1. Manually swipe the tag again, which will check whether he is currently in a queue and remove him from it

2. Swipe into another booth, which will check lower the number of students in the previous booth and enter him into the new booth

3. Timeout – after 1 hour he will be automatically checked out

Employer Station Checkout

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Terminal Stations are used to retrieve a hard copy of where to go next.

Terminals

Functionality:

1. Query for Next Visit List2. Print Out Next Visit List3. Indirect Checkout

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Touchatag TestingUsing multiple units

Code Unit TestingTesting boundary cases, invalid inputs, etc.

Server Stress TestingRapid and multiple requests to server

simulations

Test Plan

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Testing the TouchatagWe will be testing the touchatag system after

getting more readers (we currently have just one) and check for conflicts etc. when using single or multiple IDs.

Unit Testing on PHP codeCreate simple test programs to run each

function on the script, taking care to test boundary conditions and anomalies

Testing Requirements

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CostResource Requirements

Item Number of Items Cost Explanation

Poster 1 $40

Touchatag Readers 3 $120

Employer Station Laptops free Borrowing, Checking out

Terminal Computers free Borrowing, Checking out

Server Computer 1 free CSG is letting us use one

Totals $520

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Using RFID technology and a MySQL database the system will help students visit more prospective employers by keeping track of how many people are in the various employer’s lines and sending students to the shortest line based on set criteria.

Conclusion

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Questions???