Abstract: A system for sensing the volume and/or viscosity of a slurry (e.g., like concrete) contained in a rotating container or drum, having a sensor and a signal processor. The sensor is configured to attach inside a rotating container or drum having a known geometry, sense angular positions of the sensor and also sense associated entry and exit points when the sensor enters and exits the slurry, including concrete, contained in the rotating container or drum, and provide signaling containing information about the angular positions and the associated entry and exit points. The signal processor receives the signaling, and determines corresponding signaling containing information about a volumetric amount, or a viscosity, or both, of the slurry in the rotating container or drum, based upon the signaling received.

Abstract: A computer-implemented method for automatically updating work schedules includes distributing a first plurality of work schedules to a work crew. The method further includes receiving productivity updates from the work crew, the productivity updates indicative of an actual amount of work accomplished by the work crew in the first time period, and, based on one or more differences between the actual amount of work and the estimated amount of work, updating the one or more initial estimates of productivity. Still further, the method includes causing a schedule generator to generate a second plurality of work schedules based on the one or more updated estimates of productivity, and distributing the second plurality of work schedules to the work crew.