POLICE RADAR/LASER DETECTOR WITH INTEGRAL VEHICLE PARAMETER DISPLAY USING A VEHICLE INTERFACE
First Claim
1. A method of calibrating a detector including a controller, an accelerometer, and a memory, the method comprising:
- placing the detector in a factory calibration state;
manipulating the detector to rotate the accelerometer;
measuring and feeding real time measurements from the accelerometer to a curve fitting algorithm executed by the controller;
applying the curve fitting algorithm to the real time measurements to find the equation of a curve formed by the measurements;
storing the coefficients of the ellipse in the memory;
wherein the coefficients are recalled from the memory to thereby calibrate the accelerometer.
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Abstract
A method of factory calibrating a police radar/laser detector including a controller, an accelerometer, and a memory, by manipulating the detector to rotate the accelerometer, measuring and feeding real time measurements from the accelerometer to a Least Squares Elliptical Fit algorithm executed by the controller, applying the Least Squares Elliptical Fit algorithm to the real time measurements to find the equation of an ellipse formed by the measurements, storing the coefficients of the ellipse in the memory. The coefficients are then recalled from the memory to thereby calibrate the accelerometer.
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Citations
16 Claims
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1. A method of calibrating a detector including a controller, an accelerometer, and a memory, the method comprising:
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placing the detector in a factory calibration state;
manipulating the detector to rotate the accelerometer;
measuring and feeding real time measurements from the accelerometer to a curve fitting algorithm executed by the controller;
applying the curve fitting algorithm to the real time measurements to find the equation of a curve formed by the measurements;
storing the coefficients of the ellipse in the memory;
wherein the coefficients are recalled from the memory to thereby calibrate the accelerometer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A detector comprising:
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an accelerometer configured to measure and feed real time measurements to a curve fitting algorithm executed by a controller;
a controller configured to execute a curve fitting algorithm to generate correction factors; and
,a memory, the memory configured to store the correction factors for use in calibrating the accelerometer. - View Dependent Claims (10, 11, 12, 13)
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14. A detector comprising:
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a controller configured to execute program code for a vehicle performance test;
an accelerometer configured to provide measurements for a vehicle performance test; and
,a user depressable button used to indicate that a vehicle is at rest and to initiate a vehicle performance test.
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15. A detector comprising:
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a controller configured to access data available from a vehicle on board data system to determine whether the vehicle is moving; and
,an accelerometer configured to provide measurements for a vehicle performance test in response to the vehicle moving.
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16. A detector comprising:
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a receiver section adapted to receive signals indicative of police traffic surveillance devices;
a warning section responsive to the receiver section and configured to provide an alert if a received signal correlates to a police traffic surveillance device and to measure the sound pressure level within a vehicle;
wherein the warning section is further responsive to the sound pressure level measurement information and adapted to alter the alert based on the measured sound pressure level.
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Specification