초록 ▼

A fault tolerant liquid measurement system includes a plurality of sensors for measuring parameters of a liquid in a container; each sensor generating a measurement signal representative of the liquid parameter measured thereby. The sensors are grouped into a number of sets, each set including some

A fault tolerant liquid measurement system includes a plurality of sensors for measuring parameters of a liquid in a container; each sensor generating a measurement signal representative of the liquid parameter measured thereby. The sensors are grouped into a number of sets, each set including some sensors of another set. The measurement signals of each set of sensors are processed in a processor to determine for each set of sensors a first estimate signal representative of a likelihood of measurement signal validity for the measurement signals of the corresponding set, and a second estimate signal representative of liquid quantity in the container based on the measurement signals of the corresponding set. The processor further determines a third estimate signal of liquid quantity in the container based on a function of the first and second estimate signals.

대표청구항 ▼

1. A fault tolerant liquid measurement system comprising:a plurality of sensors for measuring parameters of a liquid in a container; each said sensor generating a time varying measurement signal representative of the liquid parameter measured thereby; means for grouping said sensors into a number of

1. A fault tolerant liquid measurement system comprising:a plurality of sensors for measuring parameters of a liquid in a container; each said sensor generating a time varying measurement signal representative of the liquid parameter measured thereby; means for grouping said sensors into a number of sets, each set including some sensors of another set; means for providing current and past measurement samples of each measurement signal; and processing means for processing said current and past measurement samples of the measurement signals of each set of sensors to determine for each set of sensors a current first estimate signal representative of a likelihood of measurement signal validity for said measurement signals of the corresponding set, and a current second estimate signal representative of liquid quantity in said container based on said current and past measurement samples of the measurement signals of the corresponding set, said processing means for determining a third estimate signal of liquid quantity in said container based on a function of said first and second estimate signals.