VEHICLE DATA RECORDER
First Claim
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1. A vehicle data recorder, comprising:
- a front end RF receiver for receiving satellite positioning signal data;
a memory device for storing sampled satellite positioning signal data from, the front end receiver); and
means for controlling the memory device to store a block of sampled satellite positioning signal data corresponding to a time period leading up to the time of an incident involving the vehicle.
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Abstract
A vehicle data recorder comprises a front end RF receiver and a memory device for storing sampled satellite positioning signal data from the 5 front end receiver. The memory device stores a block of sampled data corresponding to a time period leading up to the time of an incident involving the vehicle. The data can be stored with a low cost system, and can be analysed after the incident by a remote data processing station.
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Citations
15 Claims
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1. A vehicle data recorder, comprising:
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a front end RF receiver for receiving satellite positioning signal data; a memory device for storing sampled satellite positioning signal data from, the front end receiver); and means for controlling the memory device to store a block of sampled satellite positioning signal data corresponding to a time period leading up to the time of an incident involving the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of analysing vehicle data concerning a vehicle involved in an incident, comprising:
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in advance of the incident, storing sampled satellite positioning signal data form an RF front end receiver provided on board the vehicle into a memory device on board the vehicle; and after the incident, processing the sampled satellite positioning signal data from the memory device at a processing site remote from the vehicle to derive historical speed and position information. - View Dependent Claims (14, 15)
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Specification