Download CAWS Eval Final Report - Technical Deliverables

Evaluation of Caltrans Automated Warning System
Technical Deliverables
Table of Contents
Technical Deliverables ...............................................................................................................................1
5.1
Background.....................................................................................................................................1
5.2
Caltrans Automated Warning System Description .........................................................................2
5.2.1
Qualimetrics Caltrans Meteorological System (QCMS or Weather System) ..........................2
5.2.2
Traffic Monitoring System (TMS).............................................................................................5
5.2.3
CMS and “Signview” CMS Control System .............................................................................5
5.3
CAWS Evaluation System Components.........................................................................................9
5.4
Field Systems ...............................................................................................................................17
5.4.1
Data Acquisition System Hardware .......................................................................................17
5.4.2
UPS .......................................................................................................................................19
5.4.3
Wireless Modems..................................................................................................................20
5.4.4
Land-line telephone modems ................................................................................................23
5.4.5
Web Cameras .......................................................................................................................23
5.4.6
Visibility Sensors....................................................................................................................33
5.4.7
Day/Night Sensors.................................................................................................................34
5.4.8
Inductive Loops .....................................................................................................................34
5.5
Data Acquisition System Software................................................................................................37
5.5.1
System Software ...................................................................................................................37
5.5.2
Configuration File (loragen.conf) .....................................................................................41
5.5.3
Module Start/Stop Script (loragen) ......................................................................................41
5.5.4
Modem Connection Script (beOnline) ................................................................................42
5.5.5
Connect Script (connect) and Chat Script (chatscript) .................................................42
5.5.6
Network Interface Configuration (ifcfg-eth0)...................................................................43
5.5.7
Identity Setting Script (setMyIdentity) .............................................................................43
5.5.8
IP Setting Script (setMyIP) ..................................................................................................44
5.5.9
Network Monitoring Script (watchPPP).................................................................................44
5.5.10
Automatic Backup Script (lgbkp) .........................................................................................44
5.5.11
Loop Data Interface Driver (parallel_loop_driver)..................................................................46
5.5.12
Fog Data Collection Module (lgdcf) ....................................................................................49
5.5.13
Image Collection Module (lgic) ...........................................................................................51
5.5.14
Watchdog Data Collection Module (lgic) ............................................................................51
5.5.15
Sign Data Collection Module (lgdcs) ...................................................................................51
5.5.16
Status Monitoring Module (lgm) ............................................................................................52
5.5.17
UPS Monitoring Module (lgups) ..........................................................................................52
5.6
Central Server...............................................................................................................................54
5.6.1
Hardware Components..........................................................................................................54
5.6.2
Software Components ...........................................................................................................55
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