Mobile Traffic Information System

1
Mobile Traffic Information System

• An Interactive Mobile Gateway Application

2
Introduction

• Traffic information ahead of time is useful
• Georgia Intelligent Transportation System
  provides information on
  www.georgia-navigator.com
• But what if you are on the go?
• What if you dont have a laptop?
• Cell phones mobility and functionalities!

3
Functionalities

• Users can submit traffic information they have
  into the database
• Users can query todays traffic information
  stored in the database
• Real world function Users can view brief
  incident reports in wml from the official Georgia
  ITS website!

4
Problem Statements

• The web server is also the DB server, so
• Direct communication between cell phones and the
  interface ASP.NET page?
• No, the web server is on a dirty network!
• Must have another application on a 130.127.x.x as
  a bridge to the ASP page.
• cs.clemson.edu does not serve php

5
Architectureend user to DB
6
ArchitectureDB to end user
7
Architectureend user to GA ITS
8
Technology

• Deck-IT cell phone simulator
• WML
• PHP
• WML embedded PHP
• ASP
• MS SQL
• Bash script

9
Implementation Keys

• PHP fopen(hogwarts/aspx?varvalue,r)
• This triggers the asp page and activates it with
  variables passed in.
• The file pointer then contains whatever ASP page
  writes using Response.Write

10
Implementation Keys (GA ITS)

• Automatic download from GA ITS
• Bash script with lynx command
• Taylor the file
• Set up the cron job
• PHP again, use fopen to read this file, prints
  out between wml tags

11
Results and Demonstration

• All functions are implemented correctly
• http//people.clemson.edu/zhe/traffic.wml
• Try query and GA ITS with Deck-It
• If hogwarts is down, try GA ITS only

12
Conclusions

• I believe the present solution is the simplest,
  and cleanest. It does not involve SOAP.
• However, if I had access to a fully functional
  php server, things would be greatly simplified
• I learnt how to make wml, php, and asp
  communicate with each other.

13
Future Works

• This application set can be easily extended to
  many business applications for users to
  communicate with their companys private (or not)
  DB and/or Web server(s)
• Would like to refine information and tell GA ITS
  about my application to display info for cell
  phone users. They currently do not provide web
  services or wml pages.

14
Acknowledgement

• Thanks to Georgia ITS for providing consistent
  xml.gz file for educational downloading