Calamp Corp.

Alexandre Dlagnekov

Peter Hergesheimer

Todd Sprague

Systems and methods for impact detection in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle impact detection system includes an acceleration sensor, a storage device storing an impact detection application, and a processor, where the impact detection application directs the processor to receive acceleration information using the acceleration sensor, filter the acceleration information to attenuate noise, determine an occurrence of an impact by detecting an acceleration from the acceleration information that exceeds a threshold for a time period, detect an angle of the impact with respect to a forward direction using the acceleration information, and trigger an impact detector signal.

Systems and methods for impact detection with noise attenuation of a sensor signal

Systems and methods for low-latency calibration of the alignment of 3-axis accelerometers in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a telematics system includes a processor, an acceleration sensor, a velocity sensor, and a memory configured to store an acceleration alignment application, wherein the acceleration alignment application configures the processor to determine vehicular forward acceleration information and vehicular lateral acceleration information, calculate a lateral acceleration vector, a forward acceleration vector, and a vertical acceleration vector using a forward incline vector and a lateral incline vector determined using the vehicular forward acceleration information and vehicular lateral acceleration information.

Systems and methods for low latency 3-axis accelerometer calibration

Systems and methods for the efficient characterization of acceleration events in accordance embodiments of the invention are disclosed. In one embodiment of the invention, an acceleration characterization telematics system includes an acceleration sensor, a storage device, where the storage device is configured to store an acceleration event characterization application, and a processor, wherein the acceleration event characterization application configures the processor to receive acceleration information using the acceleration sensor, determine short interval filter information using the received acceleration information, determine long interval filter information using the received acceleration information, and characterize an acceleration event in the received acceleration information using the received acceleration information, the short interval filter information, and the long interval filter information.

Systems and methods for efficient characterization of acceleration events

Systems and methods for location reporting of detected events during vehicle operation in accordance embodiments of the invention are disclosed. In one embodiment of the invention, an event reporting telematics unit configured to report the location of events includes a first sensor configured to determine sensor information, a storage device configured to store sensor information and an event reporting application, and a processor, wherein the event reporting application configures the processor to receive a first sensor information using the first sensor, calculate a first sensor information timestamp, where the first sensor information timestamp is associated with the first sensor information, determine the occurrence of a vehicle event, complete the determination of the vehicle event, correlate the first sensor information with the determined event using the first sensor information timestamp, and determine the time corresponding to the beginning of the determined event.

Systems and methods for location reporting of detected events in vehicle operation

Systems and methods for the calibration of 3-axis accelerometers using vertical sample buffers in accordance embodiments of the invention are disclosed. In one embodiment, a telematics system includes a processor, an acceleration sensor, a velocity sensor, and a memory configured to store an acceleration alignment application, wherein the acceleration alignment application configures the processor to receive a velocity information sample using the velocity sensor, determine vehicular acceleration information along at least one vehicle axes using the velocity information sample, receive at least one acceleration sensor acceleration information sample using the acceleration sensor, determine a plurality of vertical vector samples using the vehicular acceleration information, calculate an average vertical vector sample using at least one of the vertical vector samples, and calibrate at least one of the vehicle axes to an acceleration sensor axis using the vehicular acceleration information, the acceleration sensor acceleration sample, and the average vertical vector sample.

Systems and methods for 3-axis accelerometer calibration with vertical sample buffers

Systems and methods for calibrating the alignment of 3-axis accelerometers in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a telematics system includes a global positioning system (GPS) receiver. an accelerometer, and a processor, wherein the GPS receiver is configured to determine velocity information, wherein the accelerometer is configured to determine accelerometer acceleration information along one or more accelerometer axes, and wherein the processor is configured to receive a velocity information sample using the GPS receiver, determine GPS acceleration information along one or more vehicle axes using the velocity information sample, receive accelerometer acceleration information samples using the accelerometer, and calibrate one of the vehicle axes to an accelerometer axis in the one or more accelerometer axes using the GPS acceleration information sample and the accelerometer acceleration information sample.

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Escondido, CA, United States of America

Alexandre Dlagnekov