California Department of Transportation
 

Wireless Loop Reader Information System

Loop Reader - What is it?.

Reads loops without taking the Model 170 Traffic Controller offline

Converts loop data into Log170 format

Uses hardwire Ethernet, IEEE-802.11, or GPRS for communication (i.e., IP-Based)

Operates as a server to handle client requests

Has built-in voice guided instructions for system installation and diagnostic

Stores data in a database

Allows users to access data through a web browser
Click Here for the Loop Reader Components Prototype

Motivation

This project is developed to support the VideoSync program and can be utilized independently for other purposes. Traditionally, data are collected through the Model 170 Traffic Controllers that are not running Log170 software. Therefore, the collected data are not in real-time and Log170 format. VideoSync requires Log170 data to operate. That means the Model 170 Traffic Controller needs to be taken offline each time for collecting Log170 data and firmware installation. With the loop reader, it provides Log170 data and enables users to access data through a wireless Ethernet anywhere. Plus, no controller has to be taken offline.

Graphical User Interface (GUI)

Loop Reader Server

Real Time Clock Setup

Read Loop Data and Store Data in a Database

Database Searching and Browsing

Access Data Through a Web Browser

Conclusion

The loop reader provides Log170 data for the operation of VideoSync

The loop reader collects data for calculating real-time speed, volume and
occupancy as well as traveler time

GUI for Database Browsing, Coping and Searching Data

GUI for Database Browsing, Coping and Searching Data

GUI for Real Time Clock Setup

GUI for Real Time Clock Setup

GUI for Read Loop Data and Store Data into Database

GUI for Read Loop Data and Store Data into Database

GUI for Link to Server and Database

GUI for Link to Server and Database

GUI for Access Data Through a Web Browser

GUI for Access Data Through a Web Browser

Related Link
Contacts

Joe Palen
Email: japalen@dcn.davis.ca.us

Jerry Kwong
Email: Jerry.Kwong@dot.ca.gov