Data acquisition node and method of operating same
First Claim
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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Abstract
A data acquisition node for coupling to a system of a vehicle includes a processor coupled to a communication interface. The processor is configured to transition from a sleep mode to a start-up detect mode after an imminent-event message is received at the communication interface. The communication interface is substantially deactivated while in the start-up detect mode. The processor also is configured to monitor sensor data from at least one sensor while in the start-up detect mode. The at least one sensor is operable to generate a signal that is representative of a physical characteristic of the system.
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Citations
21 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a data acquisition node coupled to a system of a vehicle, said method comprising:
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operating the data acquisition node in a sleep mode, wherein a sensor input interface of the data acquisition node is deactivated such that the sensor input interface is inoperable to acquire data, and wherein a communication interface of the data acquisition node is activated from a low power mode only intermittently to enable communication with a remote device; transitioning the data acquisition node from the sleep mode to a start-up detect mode, wherein the communication interface is in the low power mode such that the communication interface is not operable to communicate with the remote device, and wherein the sensor input interface is operable to acquire data representative of a physical characteristic of the vehicle; transitioning the data acquisition node from the start-up detect mode to a normal mode in response to the data acquired by the sensor input interface in the start-up detect mode satisfying a trigger profile associated with the physical characteristic of the vehicle, wherein the communication interface in the normal mode is operable to transmit sensor data from at least one sensor and the sensor input interface is operable to acquire data; and transitioning the data acquisition node from the start-up detect mode to the sleep mode in response to the data acquired by the sensor input interface in the start-up detect mode not satisfying the trigger profile associated with the physical characteristic of the vehicle after a trigger timeout period of time. - View Dependent Claims (12, 13, 14, 15)
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16. A non-transitory computer-readable medium having computer-executable instructions embodied thereon, wherein when executed by a data acquisition node comprising a communication interface, the computer-executable instructions cause the data acquisition node to:
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operate in a sleep mode, wherein a sensor input interface of the data acquisition node is deactivated such that the sensor input interface is inoperable to acquire data, and wherein a communication interface of the data acquisition node is activated from a low power mode only intermittently to enable communication with a remote device; transition from the sleep mode to a start-up detect mode, wherein the communication interface is in the low power mode such that the communication interface is not operable to communicate with the remote device, and wherein the sensor input interface is operable to acquire data representative of a physical characteristic of a vehicle; transition from the start-up detect mode to a normal mode in response to the data acquired by the sensor input interface in the start-up detect mode satisfying a trigger profile associated with the physical characteristic of the vehicle, wherein the communication interface in the normal mode is operable to transmit sensor data from at least one sensor and the sensor input interface is operable to acquire data; and transition from the start-up detect mode to the sleep mode in response to the data acquired by the sensor input interface in the start-up detect mode not satisfying the trigger profile associated with the physical characteristic of the vehicle after a trigger timeout period of time. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification