Patent ID: 9728086
Date: 2017-08-08
CPC Classifications: E01F,G08G

Claim:
1. A method for providing a bumper alert, the method comprises: generating or receiving information about a location of a vehicle; generating or receiving information about a location of a bumper; generating, by a computerized device, the bumper alert before the vehicle drives over the bumper; wherein the computerized device is at least partially located within the vehicle when generating the bumper alert; and wherein the generating of the bumper alert is based on a relationship between the location of the vehicle and the location of the bumper; monitoring vibrations of the vehicle by a sensor; and detecting, based on detection signals from the sensor, a passage of the vehicle over the bumper when finding three peaks in the detection signals that (a) are within a predefined distance from each other and (b) have a predefined peak to peak ratio; wherein the detecting of the passage of the vehicle over each bumper of the one or more bumpers comprises at least one out of: (i) comparing an absolute value of a detection signal to a sliding variance of a non-peak area; and (ii) calculating a bumper detection reliability value indicative of a reliability of the detection of the passage of the vehicle over the bumper by using an average peak level of the three peaks.