Motion analysis unit
First Claim
1. A motion analysis system comprising:
- an acceleration measuring device and an acceleration processor operable to detect an initial motion of a vehicle;
a velocity processor operable to calculate a velocity of the vehicle by adding to a previously-computed velocity an average of a current acceleration and a previously-measured acceleration;
a distance processor operable to calculate a distance traveled by the vehicle by adding to a previously-computed distance an average of a current velocity and a previously-computed velocity;
a peak velocity processor operable to determine a peak velocity;
a profile correlation processor coupled to a motion profile database, operable to verify a position of the vehicle and to confirm profile data; and
a vehicle action processor operable to determine a time for an initiation of an action for the vehicle by determining that the distance traveled by the vehicle is greater than a safe separation distance and that the peak velocity is greater than a minimum velocity threshold;
wherein the system is configured to initiate the action for the vehicle based on the verified position of the vehicle and the confirmed profile data as determined by the profile correlation processor, and based on the determination that the distance traveled by the vehicle is greater than the safe separation distance and that the peak velocity is greater than the minimum velocity as determined by the vehicle action processor.
1 Assignment
0 Petitions
Accused Products
Abstract
A motion analysis system includes an acceleration measuring device, an acceleration processor, a velocity processor, a distance processor, a peak velocity processor, a profile correlation processor, and a vehicle action processor. The system determines a time for an initiation of an action for a vehicle by determining that a distance traveled by the vehicle is greater than a safe separation distance and that a peak velocity is greater than a minimum velocity. The system initiates the action for the vehicle based on the verified position of the vehicle and the confirmed profile data as determined by the profile correlation processor, and based on the determination that the distance traveled by the vehicle is greater than the safe separation distance and that the peak velocity is greater than the minimum velocity as determined by the vehicle action processor.
-
Citations
19 Claims
-
1. A motion analysis system comprising:
-
an acceleration measuring device and an acceleration processor operable to detect an initial motion of a vehicle; a velocity processor operable to calculate a velocity of the vehicle by adding to a previously-computed velocity an average of a current acceleration and a previously-measured acceleration; a distance processor operable to calculate a distance traveled by the vehicle by adding to a previously-computed distance an average of a current velocity and a previously-computed velocity; a peak velocity processor operable to determine a peak velocity; a profile correlation processor coupled to a motion profile database, operable to verify a position of the vehicle and to confirm profile data; and a vehicle action processor operable to determine a time for an initiation of an action for the vehicle by determining that the distance traveled by the vehicle is greater than a safe separation distance and that the peak velocity is greater than a minimum velocity threshold; wherein the system is configured to initiate the action for the vehicle based on the verified position of the vehicle and the confirmed profile data as determined by the profile correlation processor, and based on the determination that the distance traveled by the vehicle is greater than the safe separation distance and that the peak velocity is greater than the minimum velocity as determined by the vehicle action processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A motion analysis system for a vehicle comprising:
-
a first longitudinal accelerometer and a second longitudinal accelerometer; a first lateral accelerometer and a second lateral accelerometer; and a computer processor coupled to the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, and the second lateral accelerometer; wherein the computer processor is configured to; execute a delay until the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, the second lateral accelerometer, and a filter stabilize; independently minimize error associated with each of the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, and the second lateral accelerometer by detecting and removing fixed offsets; normalize data received from the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, and the second lateral accelerometer; verify that the normalized data are within a range for subsequent calculations and that the normalized data track across the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, and the second lateral accelerometer; use data from the first longitudinal accelerometer and the second longitudinal accelerometer to; determine a longitudinal acceleration; determine an initial motion of the vehicle based on the longitudinal acceleration; compute a longitudinal velocity of the vehicle by adding to a previously-computed velocity an average of a current acceleration and a previously-measured acceleration; compute a longitudinal distance of the vehicle by adding to a previously-computed distance an average of a current velocity and a previously-computed velocity; detect a longitudinal peak velocity; and detect a longitudinal velocity profile; use data from the first longitudinal accelerometer, the second longitudinal accelerometer, the first lateral accelerometer, and the second lateral accelerometer to; determine a corrected longitudinal-lateral acceleration; determine a longitudinal-lateral direction; determine a longitudinal-lateral distance; compute a longitudinal-lateral velocity by adding to a previously-computed longitudinal-lateral velocity an average of a current longitudinal-lateral acceleration and a previously-measured longitudinal-lateral acceleration; compute a longitudinal-lateral distance by adding to a previously-computed longitudinal-lateral distance an average of a current longitudinal-lateral velocity and a previously-computed longitudinal-lateral velocity; detect a longitudinal-latitude peak velocity; and detect a longitudinal-latitude velocity profile; use the computed longitudinal distance and the computed longitudinal-lateral distance to determine if a distance traveled by the vehicle is greater than a safe separation distance; use the detected longitudinal peak velocity and the detected longitudinal-lateral peak velocity to determine if the vehicle has attained a minimum velocity; validate the longitudinal velocity profile and the longitudinal-lateral velocity profile; and initiate an action for the vehicle when a distance traveled by the vehicle is greater than a safe separation distance, the peak velocity is greater than a minimum velocity threshold, and a position of the vehicle has been verified and profile data have been confirmed. - View Dependent Claims (17, 18, 19)
-
Specification