Patent ID: 6892131
Filing Date: 2005-05-10
Classification: B28C,B60P,G01M,G07C,G08G,H04W

Abstract:
1. A vehicle monitoring system that monitors the state of a plurality of vehicles, said system comprising: at least one mobile data unit that generates automatic status information corresponding to a delivery vehicle, wherein the automatic status information includes position information and delivery state information; a delivery state database that store the automatic status information generated by the mobile data unit; wherein the mobile data unit includes a controller, a GPS receiver coupled to the controller, and at least one vehicle condition sensor coupled to the controller, and said controller generates the automatic status information based on signals received from the GPS receiver and the vehicle condition sensor; wherein the controller determines the delivery state information based on the signal received from the vehicle condition sensor; and wherein the vehicle condition sensor generates a mixing barrel status signal indicative of a charge operation condition and a discharge operation condition of a mixing barrel, and wherein the controller determines a Begin Pour delivery state and an End Pour delivery state based on the mixing barrel status signal.