Patent ID: 11887052
Assignee: S1 TECHNOLOGIES, INC.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A system for determining volume of fluid in at least one tank, the system comprising:
at least one tank mounted on a vehicle, the at least one tank being capable of storing a volume of fluid;
at least one differential pressure sensor positioned within the at least one tank, and submersed in fluid when fluid is in the at least one tank, the at least one sensor being configured for measuring pressure of fluid proximate the differential pressure sensor;
at least one vent line operably connected to the at least one differential pressure sensor, the at least one vent line having a single end through which air may flow and atmospheric pressure may be communicated to the at least one differential pressure sensor, the at least one differential pressure sensor being further configured for adjusting a fluid pressure reading by the communicated atmospheric pressure;
at least one processor positioned within and coupled to the at least one differential pressure sensor; and
a memory positioned within the at least one differential pressure sensor and coupled to the at least one processor, the memory including computer program code executable by the at least one processor for performing at least two of the functions of determining volume of fluid with reference to the pressure of fluid as adjusted by atmospheric pressure, determining the density of the fluid, storing data indicative of the aforementioned determinations in memory, determining from presently determined and previously stored data that fluid volume in the tank has changed by more than a predetermined threshold, and generating an alert indication when it is determined that volume of fluid in the tank has changed by more than the predetermined threshold.