Windshield monitoring system
AssigneeJaguar Road Rover Limited
InventorsJonathan Parsons, Neil Beloe
Life of this patent
Estimating the term…
Abstract
The present invention relates to a windshield monitoring system. The windshield monitoring system comprises; a windshield (114) and an emitter (122) arranged to emit a sound pulse to induce a surface acoustic wave (SAW) to a surface of the windshield (114). The windshield monitoring system also comprises a sensor (124) arranged to receive the surface acoustic wave from the windshield (114) and a detection module (130) arranged to detect the presence of surface contamination (120) by attenuation in intensity of the received wave compared to an expected wave.
Claims23
A windshield monitoring system, comprising:
- an emitter configured to emit a sound pulse to induce a surface acoustic wave (SAW) on a surface of a windshield;
- a sensor configured to receive the SAW from the windshield;
- a waveguide to spread the surface acoustic wave across the windshield from the emitter to the sensor;
- and
- a detection module configured to detect the presence of surface contamination by intensity attenuation of the received wave compared to an expected wave.
(canceled)
A method of monitoring a windshield, the method comprising;
- emitting a sound pulse to induce a surface acoustic wave (SAW) to a surface of the windshield;
- transmitting the SAW along an edge of the windshield;
- progressively reflecting the SAW to an opposing edge of the windshield;
- reflecting the SAW along the opposing edge of the windshield to a detector;
- detecting a presence of surface contamination by attenuation in intensity of the received SAW;
- and
- locating the surface contamination by a time coordinate of the attenuation on the SAW signal.
(canceled)
23-24. (canceled)
Dependencies are inferred from the claim text.