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Data acquisition node and method of operating same

  • US 9,872,250 B2
  • Filed: 09/04/2014
  • Issued: 01/16/2018
  • Est. Priority Date: 09/04/2014
  • Status: Active Grant
First Claim
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1. A data acquisition node for coupling to a system of a vehicle, said data acquisition node operable in each of a sleep mode wherein sensor data is not monitored, a start-up detect mode wherein sensor data is monitored, and a normal mode wherein sensor data is transmitted, wherein said data acquisition node comprises:

  • a communication interface operable to communicate with at least one remote device;

    a memory device capable of storing a trigger profile associated with a physical characteristic of the vehicle; and

    a processor coupled to said communication interface and said memory device, said processor configured to;

    activate said communication interface intermittently while in the sleep mode to check for an imminent-event message from the at least one remote device;

    transition from the sleep mode to the start-up detect mode after the imminent-event message is received by said communication interface, wherein said communication interface is substantially deactivated while in the start-up detect mode such that said communication interface is not operable to communicate with the remote device;

    monitor sensor data from at least one sensor while in the start-up detect mode, wherein the monitored sensor data is representative of the physical characteristic of the vehicle;

    determine whether the monitored sensor data satisfies the trigger profile;

    transition to the normal mode after determining that the monitored sensor data satisfies the trigger profile, wherein monitoring of sensor data continues in the normal mode, and wherein said communication interface is activated in the normal mode and transmits the monitored sensor data; and

    transition to the sleep mode after determining that the monitored sensor data does not satisfy the trigger profile after a trigger timeout period of time.

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