| 摘要 |
Mobile telemetry apparatus for use in a vehicle, comprising a processor and a data storage unit containing a map database, the apparatus configured to store in a long term storage unit or to transmit to an external back-office system output data representative of the position or speed of the vehicle, the processor being programmed to respond to measured parameters indicative of vehicle motion and to access the map database representative of possible vehicle positions, to generate the output data; wherein the map database comprises a plurality of zones and a set of data reporting parameters associated with each zone, and the processor is programmed to determine in which zone the vehicle is positioned and to transmit the output data in accordance with the reporting parameters associated with that zone.
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