An Intelligent Road Waterlogging Sensor for Traffic Safety: Principle and Algorithm

Road waterlogging affects the behavior of driver-vehicle unit, thus road waterlogging perception technique is highly important to traffic safety. In this work, a pressure-guiding waterlogging perception method is introduced, and this sensor is modeled based on the principle of differential pressure to realize the real-time measurement of the road waterlogging level. In order to decrease non-linear measurement error of this waterlogging sensor under complex road environment, this paper proposed an adaptive correction algorithm according to the principle of data fusion. The experimental results show that this proposed method has much higher stability and measurement accuracy than typical measurement methods of the road waterlogging level.