Apparatus, system and method utilizing aperiodic nonrandom triggers for vehicular telematics data queries
A vehicular telemetry apparatus, operable to initiate a telemetry processing operation in response to an aperiodic, nonrandom trigger signal cued by a sensed, operationally-variable vehicular condition. A trigger unit provides the trigger signal which in turn switches the telemetry apparatus from a resource-conserving idle state to a state in which a session is initiated, so that operationally salient variations in information on changes in vehicle sensor data are detected and processed.
1. A vehicular telemetric method, comprising:
receiving an aperiodic and nonrandom trigger signal autonomously produced when a sensed operationally-variable vehicular condition exceeds a pre-set threshold condition,
activating a data logging device to log sensed vehicle data,
activating a data transmitter to communicate the sensed vehicle data to a remote receiver, and
issuing queries to vehicle sensors to obtain the sensed vehicle data, the queries being communicated from a microprocessor via a vehicular communications bus to the vehicle sensors, and
receiving responses to the queries via the vehicular communications bus
and wherein the trigger signal is issued in response to a first sensor sensing a first operationally-variable vehicular condition that exceeds a first pre-set threshold condition and a second sensor sensing a second operationally-variable vehicular condition that exceeds a second pre-set threshold condition,
the second sensor is activated for sensing after the first pre-set threshold condition of the first sensor is exceeded, and
the trigger unit issues the trigger signal after the second sensor is activated and after the second pre-set threshold condition of the second sensor is exceeded.
2. The vehicular telemetric method according to claim 1 , wherein the microprocessor, the data logging device, and the data transmitter are incorporated in d telematics apparatus on-board a vehicle.
3. The vehicular telemetric method according to claim 1 , wherein the microprocessor issues a subsequent query in a queue based on a response to a previous query in the queue.
4. The vehicular telemetric method according to claim 1 , further comprising:
establishing a data link between the data transmitter and the remote receiver;
issuing queued queries and collecting responses to the queries via the vehicular communications bus, the responses corresponding to vehicle operation data;
packaging the vehicle operation data according to a communications protocol; and
wirelessly conveying the packaged data over the data link to the remote receiver.
5. The vehicular telemetric method according to claim 1 , wherein the sensed operationally-variable vehicular condition is an accelerometer-sensed change at least one of: vehicle speed and vehicle direction.
6. The vehicular telemetric method according to claim 1 , wherein the sensed operationally-variable vehicular condition is a sensed change in voltage of a vehicular power supply.
7. A vehicular telemetric method, comprising:
receiving an aperiodic and nonrandom trigger signal autonomously produced when a sensed operationally-variable vehicular condition exceeds a pre-set threshold condition,
activating a data logging device to log sensed vehicle data,
activating a data transmitter to communicate the sensed vehicle data to a remote receiver, and
issuing queries to vehicle sensors to obtain the sensed vehicle data, the queries being communicated from a microprocessor via a vehicular communications bus to the vehicle sensors, and
receiving responses to the queries via the vehicular communications bus
and wherein the trigger signal is issued in response to a first sensor sensing a first operationally-variable vehicular condition that exceeds a first pre-set threshold condition and a second sensor sensing a second operationally-variable vehicular condition that exceeds a second pre-set threshold condition,
and wherein the first sensor is an accelerometer, and the first operationally-variable vehicular condition is vehicle movement,
and wherein the second sensor is an ignition proxy detector, and the second operationally-variable vehicular condition is a vehicular power status,
and wherein the trigger signal is issued when a determination is made that the vehicle movement exceeds a predetermined amount, and the vehicle power is on.
8. A vehicular telematics apparatus comprising:
a trigger unit; and,
any one or more of:
a data logging device operable to log sensed vehicle data,
wherein said data logging device initiates a data logging session in response to a trigger signal issued from the trigger unit in response to a trigger sensor sensing an aperiodic and nonrandom operationally-variable vehicular condition within a normal operational range for such a condition;
a vehicle data transmitter operable to communicate sensed vehicle data to a remote receiver,
wherein said vehicle data transmitter initiates a wireless data communication session with said remote receiver in response to a trigger signal issued from the trigger unit in response to a trigger sensor sensing an aperiodic and nonrandom trigger operationally-variable vehicular condition within a normal operational range for such a condition;
a vehicle data query controller operable to conditionally collect data though a vehicular data communications bus, for vehicle data originating from other vehicular data sensors,
wherein said data query controller initiates data collection as a conditional response to a contemporaneous trigger signal issued from the trigger unit in response to a trigger sensor sensing an aperiodic and nonrandom operationally-variable vehicular condition within a normal operational range for such a condition,
and wherein the trigger unit issues the trigger signal in response to a first sensor sensing a first operationally-variable vehicular condition that exceeds a first pre-set threshold condition and a second sensor sensing a second operationally-variable vehicular condition that exceeds a second pre-set threshold condition
and wherein the first sensor is an accelerometer, the first operationally-variable vehicular condition is an acceleration of the vehicle, and the first pre-set threshold condition is a change in the acceleration of the vehicle exceeding a first amount,
and wherein the second sensor is an accelerometer, the second operationally variable vehicular condition is a change in the acceleration of the vehicle exceeding a second amount,
and wherein the first amount is different form the second amount.
9. An on-board vehicular telematics apparatus according to claim 8 .
10. The vehicular telematics apparatus according to claim 8 wherein the vehicle data is any combination of vehicle performance data; vehicle location data; vehicle condition data, and driver performance data.
11. The vehicular telematics apparatus according to claim 8 wherein the trigger signal issued from the trigger unit is in response to the trigger sensor sensing an aperiodic and nonrandom quantitative or qualitative change in operationally-variable vehicular condition within said normal operational range for such a condition.
12. The vehicular telematics apparatus according to claim 8 wherein the trigger signal issued from the trigger unit is in response to the trigger sensor sensing an aperiodic and nonrandom operationally-variable vehicular condition within said normal operational range for such a condition but which is at variance from a pre-set threshold condition within said normal operational range.
13. The vehicular telematics apparatus according to claim 8 , wherein said trigger unit and said vehicle data query controller are functionally integrated into a vehicular telematics apparatus microprocessor.
14. The vehicular telematics apparatus according to claim 8 , wherein respective ones of said data logging device initiating a data logging session; said vehicle data transmitter initiating a wireless data communication session with said remote receiver; and, said data query controller initiating data collection; are each in corresponding direct or indirect response to said trigger signal.
15. The vehicular telematics apparatus according to claim 8 , wherein the trigger sensor is a vehicular movement sensor.
16. The vehicular telematics apparatus according to claim 8 , wherein the accelerometer is an inertial mass sensor that detects a change in vehicle speed and change in vehicle direction.
17. The vehicular telematics apparatus according to claim 8 , comprising a microprocessor programmed to issue queries to vehicle components for obtaining vehicle performance data and wherein the queries are communicated via a data communications bus, and responses to the queries are communicated from the vehicular components to the microprocessor via the data communications bus.
18. The apparatus according to claim 8 wherein one of the first and second sensors includes an ignition detector.
19. The apparatus according to claim 8 wherein
the first sensor is one of an ignition detector or an accelerometer
the second sensor is an accelerometer,
the second sensor is activated for sensing after the first pre-set threshold condition of the first sensor is exceeded, and
the trigger unit issues the trigger signal after the second sensor is activated and after the second pre-set threshold condition of the second sensor is exceeded.
20. The apparatus according to claim 8 , wherein
the second sensor is activated for sensing after the first after the first pre-set threshold condition of the first sensor is exceeded and
the trigger unit issues the trigger signal after the second sensor is activated and after the second pre-set threshold condition of the second sensor is exceeded.
21. The vehicular telematics apparatus according to claim 11 , wherein the aperiodic and nonrandom change is a degree of change or a rate of change in said operationally-variable vehicular condition within said normal operational range for such a condition.
22. The vehicular telematics apparatus according to claim 12 , wherein the trigger unit autonomously issues the trigger signal,
in response to a trigger sensor sensing an operationally-variable vehicular condition that exceeds said pre-set threshold condition within said normal operational range, and
when said pre-set threshold is exceeded.
23. The vehicular telematics apparatus according to claim 14 , wherein said data query controller initiates collection by initiating a request for such data on said vehicular data communications bus.
24. The vehicular telematics apparatus according to claim 23 , wherein vehicle data responses to the triggered data query controller request are directed by a vehicular telematics apparatus microprocessor from said vehicular data communications bus to said logger and/or said transmitter, which are respectively thereby indirectly responsive to said trigger signal to log/transmit vehicle data from the vehicle data response.
25. The vehicular telematics apparatus according to claim 15 , wherein the vehicular movement sensor includes at least one of: an accelerometer and a geomagnetic field detector.
26. The vehicular telematics apparatus according to claim 17 , wherein said data communications bus is a vehicular network communications bus.
27. The vehicular telematics apparatus according to claim 26 further comprising an electrical connector for connecting to the vehicular data communications bus.
28. The vehicular telematics apparatus according to claim 26 , wherein the electrical connector includes any combination to:
an interface to an electronic control unit (ECU) interface box;
an interface break-out box, and
an interface to a vehicular data port.
29. The vehicular telematics apparatus according to claim 28 wherein the interface to a vehicular data port is OBD-II compliant.
30. The apparatus according to claim 18 wherein the ignition detector is an ignition proxy detector.
31. The apparatus according to claim 30 wherein the ignition proxy detector includes at least one of:
an engine revolutions detector;
a vehicle speed detector;
a communications-bus high-voltage-state detector;
a vehicle-power-supply voltage-drop detector;
an intake-manifold pressure detector;
a vehicle-power-supply voltage-noise detector;
and a charging-system voltage detector.