In the light of the problems that can't be detected visually in the real-time measurement of the oil tank storage in the gasoline station, this paper puts forward a scheme of staged detection, and by using the interpolation method, establishes a mathematical model of the oil-level height and corresponding oil tankage, and solves the problem of the real-time measurement of the oil tank storage.

Oil tank measurement and management system was designed,which included system network structure,oil tank measurement principle,hardware and software design of fieldbus network control nodes,monitoring server.