US Patent 7249505 Flexible scheduler for a cellular reporting system

A tank level monitoring system is provided. The system comprises a monitor and a data center. The monitor is operatively connected to the tank to periodically monitor a level of product stored in the tank. The monitor includes a user-defined reporting schedule programmed therein. The data center is in communication with the monitor via a data channel. The monitor transmits level measurement information to the data center over the communication channel based on the user-defined reporting schedule.