3 results about "Fill rate" patented technology

The invention belongs to the technical field related to casting, and discloses a rapid tracking and predicting method and system for involved bubble movement in the casting and mold filling process. The method comprises the following steps: (1) carrying out grid division on a three-dimensional geometric model for casting and mold filling; (2) calculating the filling rate, the speed and the pressure intensity of each grid in a casting mold filling cavity at the moment i in the mold filling process; identifying bubbles in the cavity and grids contained in each bubble; and (3) repeating the step (2) until updating of the filling rates, the filling speeds and the pressure intensities of the grids in the bubbles at all moments is completed, so that tracking and prediction of bubble movement in the casting and mold filling process are realized. By means of the method, tracking and calculation of involved bubbles in the mold filling process are achieved, and the solving accuracy of casting numerical simulation software is enhanced.

According to an aspect, there is provided a device for determining a fill rate of an elevator car. The device may obtain a first set of sensor data associated with an empty elevator car from at least

According to an aspect, there is provided a device for determining a fill rate of an elevator car. The device may obtain a first set of sensor data associated with an empty elevator car from at least one time-of-flight sensor arranged in the elevator car, the first set of sensor data comprising first data points; remove data points associated with walls of the elevator car from the first data points to obtain floor data points; determine a bounding volume surrounding the floor data points; obtain a second set of sensor data associated with the elevator car from the least one time-of-flight sensor, the second set of sensor data comprising second data points; and calculate the fill rate of the elevator car at least partly based on the second data points inside the bounding volume.