An on-board system for location estimation and communication for a vehicle. In some embodiments, the on-board system includes a global navigation satellite system receiver, an inertial sensing system, a wireless receiver, and a processing circuit. The wireless receiver includes at least one of a cellular communications receiver, and a wireless local area networking receiver. The processing circuit is configured: to determine whether a global navigation satellite system signal is present, and in response to determining that a global navigation satellite system signal is present, to store, in the processing circuit: a current location estimate generated by the global navigation satellite system receiver, and a characterization of a radio-frequency environment measured by the wireless receiver; and in response to determining that a global navigation satellite system signal is not present, to estimate a location of the vehicle based on a characterization of a radio-frequency environment measured by the wireless receiver.
ENHANCED VEHICLE TRACKER
2019-04-18
Patent
Elektronische Ressource
Englisch
Tracker - stolen vehicle recovery system
British Library Conference Proceedings | 1993
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