TerraTracker, Inc., is a technology partner with the Rosum Corporation of Mountain View, California. We work directly with hardware and application developers to integrate Rosum's Television-Based Positioning Technology into Vehicle, Personal, and Mobile Asset Location and Tracking Applications.

The Rosum TV-GPS Hybrid Positioning Module

The Rosum TV-GPS Hybrid Positioning Module (HPM) combines the indoor accuracy and reliability of TV-positioning with the global reach of GPS.  The HPM is a single-board location module for use in tracking and navigation devices. Position information is determined using the best combination of available broadcast TV and GPS signals enabling reliable location and tracking in even the most challenging environments.

Public Safety Applications In Focus

“We have heard the voice of public safety officials and are addressing it with our HPM. Hybrid TV+GPS 3D positioning is a vital platform technology for homeland security and public safety markets, such as first response, asset awareness for law enforcement, and offender monitoring" says Rosum CEO Skip Speaks. The Rosum HPM provides reliable location where competing technolgies cannot.

TV-GPS Hybrid Positioning Combines Ranging Information from
all TV Towers and all GPS Satellites In-View
 

Rosum TV-positioning technology leverages the global terrestrial broadcast television infrastructure to provide location information with excellent indoor and urban availability and accuracy where other location technologies fail. Terrestrial broadcast TV signals are high-power, low-frequency signals that easily penetrate buildings and urban areas. Further, TV signals are wide in bandwidth, making them robust to errors arising from multipath.  Both analog and digital signals are used.  The increase in the number of on-air digital TV channels enhances Rosum’s performance.

World-Class A-GPS Onboard

GPS location information is provided in the form of Global Locate's Hammerhead A-GPS Chip  This world-class A-GPS chipset provides highly reliable location information when satellites are visible.

Rosum TV-GPS Hybrid Positioning Module
 

Hybrid Synergy

The HPM combines the ranging information provided by the TV and A-GPS components to deliver reliable, accurate position fix in any environment. While deep indoors, the HPM uses TV signals for positioning. When the HPM moves outdoors, it will automatically transition to a mix of TV and GPS signals, seamlessly choosing the best combination of signals for determining location in every micro-environment.

Further, Rosum’s hybrid TV-GPS solution enhances the performance of the A-GPS engine itself by providing it with accurate time and frequency assist information which substantially improves GPS acquisition time and sensitivity. The result is unparalleled accuracy and availability outdoors, indoors, and even in dense urban areas, with no local-area infrastructure required.

Rosum utilizes the broadcast TV infrastructure as a distributed network of high-powered location beacons. This infrastructure is highly reliable even in disaster scenarios and is robust to jamming. Broadcast TV has demanding quality-of-service requirements and is used in the Emergency Alert System. It is well-suited to use in safety-of-life applications including:

• First responder tracking and location
• Law enforcement tracking
• Parolee tracking (offender monitoring)
• Asset tracking and recovery
• Indoor 9-1-1 caller location determination

Rosum service is not vulnerable to local power outages.

Broadcast TV transmitter location information is managed in the United States by the Federal Communications Commission.

Please contact mark@terratracker.com for more information.

Take a look at some In-Building Position Reports from our demonstration system!
 

TerraTracker, Inc.

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