Description

The Signal Priority System uses the Spot Devices Acuity™ tracking and control application to provide cost-effective, simple management of schedule-sensitive vehicles. Acuity™ is part of the Spot Devices System Infrastructure Management Applications (SIMA) suite, a set of secure Web-based tools for remote, enterprise-wide supervision of all Spot Devices systems.

Operation

The Signal Priority System monitors GPS-based vehicle location via Virtual Private Network (VPN) communications between a vehicle-mounted modem and the SIMA server complex. SIMA then uses the same VPN to command a local SC320-series Spot Devices controller to notify a co-located, industry-standard traffic signal controller that a vehicle has passed a configurable virtual fence (geofence).

Applications

• Reduce transit time for public transportation
• Vehicle location management
• Grade crossing management

Highlights

• Mission-critical, dedicated VPN communications managed by 24/7, multi-location, fully redundant Network Operations Centers
• Real-time vehicle location monitoring via secure Web site from virtually any browserequipped device
• Detection of vehicle has no proximity or line-ofsight
  limitations
• Notifications to traffic signal controller of geofence passage at configurable distance(s) before and after intersection
• Field hardware is limited to SC320-series Spot Devices controllers and modems, minimizing system anagement and maintenance costs
• Compatible with industry-standard cabinets and traffic signal controllers
• Driver management and homeland security application provides proactive e-mail alert if vehicle deviates from route

System Components

• SC320RM Rack-Mount Controller
• Vehicle-mounted M2M modem and GPS unit