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TIDGET Emergency Location Sensor for Automobiles

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 26768
Amount: $429,046.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1995
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
14960 Woodcarver Road
Colorado Springs, CO 80132
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Alison Brown
 (719) 481-4877
Business Contact
Phone: () -
Research Institution

The DOT has identified the need for an emergency location service as part of the IVHS program. GPS has been proposed as a method of providing location in support of this "Mayday" service. However, the expense, slow time-to-first-fix, and inability to compute a navigation fix except when four satellites are visible make conventional GPS receivers inappropriate for emergency location. NAVSYS has developed an alternative, low cost GPS sensor, the TIDGET, which is ideally suited for emergency location. This sensor was developed under the USAF contract for tracking radiosondes. Instead of tracking the GPS signals, the TIDGET sensor captures a brief "snapshot" of ray GPS sampled data and transmits this snapshot to the emergency dispatch center where the location of the motorist is computed. The central processing is aided by data from a map database when fewer than four satellites are in veiw of the sensor. The TIDGET requires no initialization or warm-up time since there is no processing of the data performed at the vehicle In large quantities, the TIDGET cost is less than $100 per unit, not including the cellular phone or other mobile communications link. Under this project, it is proposed to complete the TIDGET Mayday system architecture design and perform an initial in-vehicle demonstration of an emergency sensor. Anticipated Benefits: A reliable Mayday service will significantly increase highway safety, particularly in rural regions. The proposed TIDGET Mayday system architecture also permits value-added services to be provided to consumers through a public-private partnership. Commercial applications include AAA and tourist information services, stolen car recovery, and automatic vehicle location (AVL).

* Information listed above is at the time of submission. *

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