Triply Redundant Integrated Navigation and Asset Visibility System
First Claim
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1. An apparatus comprising:
- a system controller;
a timing subsystem coupled to the system controller;
a Global Positioning System (GPS) receiver coupled to the system controller;
a radio frequency (RF) locating receiver coupled to the system controller;
wherein the system controller is configured to combine data from the Global Positioning System receiver and data from the radio frequency locating receiver to generate a hybrid GPS/RF position fix.
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Abstract
Methods and apparatus are described for a navigation system. A method includes providing a global positioning system fix having a plurality of tracking parameters; providing a theater positioning system fix; monitoring the plurality of tracking parameters for predetermined conditions; and, when the predetermined conditions are met, sending a notifying signal and switching to the theater positioning system fix as a primary fix. An apparatus includes a system controller; a global positioning system receiver coupled to the system controller; a radio frequency locating receiver coupled to the system controller; and an operator interface coupled to the system controller.
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Citations
18 Claims
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1. An apparatus comprising:
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a system controller; a timing subsystem coupled to the system controller; a Global Positioning System (GPS) receiver coupled to the system controller; a radio frequency (RF) locating receiver coupled to the system controller; wherein the system controller is configured to combine data from the Global Positioning System receiver and data from the radio frequency locating receiver to generate a hybrid GPS/RF position fix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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acquiring Global Positioning System (GPS) data by a GPS receiver; acquiring radio frequency (RF) location data by an RF locating receiver; performing a signal integrity test on the GPS data; determining that the GPS data is insufficient to alone generate a complete GPS position fix; performing a signal integrity test on the RF location data; determining that the RF location data is insufficient to alone generate a complete RF position fix; determining that the GPS data and the RF location data are combinable to form a complete hybrid GPS/RF position fix; and combining the GPS data and the RF location data to form the hybrid GPS/RF position fix. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification