Post on 19-Dec-2015
transcript
For Snohomish County
ITS Washington, November 12, 2008
Wireless Communications in ITS
Outline
Existing Applications Interconnect Remote Communications to Field
Original Future Concept
Plans Can Change
Existing Applications - Interconnect
164th St SE & 3rd Ave SE to 164th St SE & 9th Ave SE
Connects Mill Creek with Snohomish County
ENCOM 5200 ( RS-232) 900 MHz
Existing Applications - Interconnect
Existing Applications (Connect to Field)
Notebook Computer
Wireless Air Card (Cellular Modem)
Connect to System
Connect to Signal/PTZ/Video Detection
Existing Applications (Connect to Field)
WirelessTMC
Existing System Communications
Dial up Telephone To field masters To isolated. Stand alone signals Very slow Lots of lines and lots of modems Expensive
DSL/Cable Faster Still expensive
Original Future Concept
Fiber Optics not Considered an Option. Broad geographic region Lack of available fiber Complicated and expensive
Total Wireless System was the Idea Arterial mesh network (point to multi
point) High capacity backhaul system (point to
point)
Original Future Concept
Original Future Concept
Original Future ConceptWireless Arterial Mesh
Network
Original Future Concept
Original Future Concept
Minimum Radio Requirements
5.8 or 5.9 GHz 50 Mb minimum bandwidth for
intersections.
300 Mb minimum bandwidth for backhaul
Original Future Concept
Installation Requirements
Multiple Routes
Good Line of Sight
Turn Key Operation
Be Flexible
Plans Change
Enter Black Rock Cable (Fiber Network)
Connections to Major Corridors
Pull 12 Strand Fiber and Splice to Signal
Black Rock Needs to get to SR 9
Snohomish County Conduit Banked to SR 9
Plans Change Again
Enter County DIS
Purchase of Dark Fiber from Black Rock
Eventual Multiple Path Fiber Connections to all signals
May Retain Backhaul for Emergency Redundancy