Even driven data acquisition switch
First Claim
1. A computer readable storage medium having computer readable program code for executing a method for detecting a significant event and switching the data acquisition mode, said method comprising the steps of:
- checking a state of a data acquisition mode,if said state is in a filtered data state and if a real time steep accelerometer indicator value is at or above an accelerometer threshold value,switch said data acquisition mode to an unfiltered data state and acquire a series of high frequency unfiltered data points,if said data acquisition mode is in an unfiltered data state and if said real time steep accelerometer indicator value is below said accelerometer threshold value,switch said data acquisition mode to a filtered data state and acquire a series of low frequency filtered data points.
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Abstract
A method and apparatus in a vehicular telemetry system and a remote data analysis system for detecting an event and switching a data acquisition mode. Checking a state of a data acquisition mode. If the state is in a filtered data state and if an indicator value is at or above a threshold value, then switch the data acquisition mode to an unfiltered data state and acquire unfiltered data. If the data acquisition mode is in an unfiltered data state and if the indicator value is below the threshold value, switch the data acquisition mode to a filtered data state and acquire filtered data.
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Citations
39 Claims
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1. A computer readable storage medium having computer readable program code for executing a method for detecting a significant event and switching the data acquisition mode, said method comprising the steps of:
checking a state of a data acquisition mode, if said state is in a filtered data state and if a real time steep accelerometer indicator value is at or above an accelerometer threshold value, switch said data acquisition mode to an unfiltered data state and acquire a series of high frequency unfiltered data points, if said data acquisition mode is in an unfiltered data state and if said real time steep accelerometer indicator value is below said accelerometer threshold value, switch said data acquisition mode to a filtered data state and acquire a series of low frequency filtered data points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for detecting a significant event and switching a data acquisition mode, the apparatus comprising:
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a microprocessor, an accelerometer, and a memory, said microprocessor communicating with said accelerometer and said memory, said accelerometer communicating data corresponding to an axis of said accelerometer to said microprocessor, said microprocessor executing computer program code for; checking a state of said data acquisition mode, if said state is in a filtered data state and if a real time steep accelerometer indicator value is at or above an accelerometer threshold value, switch said data acquisition mode to an unfiltered data state and acquire a series of high frequency unfiltered data points, if said data acquisition mode is in an unfiltered data state and if said real time steep accelerometer indicator value is below said accelerometer threshold value, switch said data acquisition mode to a filtered data state and acquire a series of low frequency filtered data points. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. (canceled)
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39. A system for detecting a significant event, the system comprising:
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a vehicular telematics system, and a remote device, said telematics system including; an on-board portion and a resident portion, said on-board portion including a microprocessor and firmware for executing computer program code for detecting an event and formatting a data structure, an accelerometer for providing accelerometer data to said microprocessor, a communications microprocessor for transmitting said data structure, a GPS module for providing GPS data to said microprocessor, memory for storing said data structure, and an interface to the resident portion for receiving vehicular data and information from a vehicle network communications bus and associated microcontrollers and sensors, said remote device including a server and access to at least one data analysis application computer program, said microprocessor and firmware checking a state of a data acquisition mode, if said state is in a filtered data state and if a real time steep accelerometer indicator value is at or above an accelerometer threshold value, switch said data acquisition mode to an unfiltered data state and acquire a series of high frequency unfiltered data points, if said data acquisition mode is in an unfiltered data state and if said real time steep accelerometer indicator value is below said accelerometer threshold value, switch said data acquisition mode to a filtered data state and acquire a series of low frequency filtered data points, said microprocessor storing said series of high frequency unfiltered data points and said series of low frequency filtered data points in a data log as a data structure including high frequency unfiltered data interspersed with said low frequency filtered data characterized by said significant event, wherein said telematics system transmits said data structure to said remote device and said remote device stores said data structure for further analysis by said data analysis application computer program.
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Specification