| 摘要 |
The method involves establishing a correspondence between each position of a vehicle (10) along a visual axis (U) and a basic angle value, in a calibration stage. The vehicle position along the axis is found. A speed component of the vehicle is measured. A value of the corresponding basic angle is deduced from the correspondence. Actual vehicle speed is calculated from the value and component, by a speed calculating module (9). - The basic angle value is equal to an angle between the visual axis and the vehicle speed vector crossing the visual axis at a point corresponding to the position of the vehicle along the visual axis. An INDEPENDENT CLAIM is also included for a device for measuring a speed of a vehicle moving in a predetermined path.
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