Method of Determining the State of a Body
AssigneeEADS Deutschland GmbH
InventorChristian Zecha
Life of this patent
Estimating the term…
Abstract
In a process and apparatus for determining the state of a body, a number n of measured values {right arrow over (x)}i of a state of the body with i=1, . . . , n are measured and recorded, the measured values {right arrow over (x)}i representing points in the k-dimensional space. The measured values {right arrow over (x)}i of the state are then fed to a Kalman filter for estimating the state of the body. For each number n of measured values {right arrow over (x)}i of a state of the body, a first quantity {right arrow over (m)}n and a second quantity rn are derived, and are fed to the Kalman filter, the quantity {right arrow over (m)}n being the center vector, and the quantity rn being the radius of a k-dimensional sphere Bn within which all points {right arrow over (x)}i are situated.
Claims7
A method for determining the physical state of a body, said method comprising:
- measuring and recording of a number n of values {right arrow over (x)}i of physical quantities that characterize the state of the body, with i=1, . . . , n, the measured values {right arrow over (x)}i representing points in the k-dimensional space;
- and
- feeding the measured values {right arrow over (x)}i to a Kalman filter for estimating the state of the body;
- wherein,
- for each number n of measured values {right arrow over (x)}i, a first quantity {right arrow over (m)}n and a second quantity rn are derived, the quantity {right arrow over (m)}n being a center vector, and the quantity rn being a radius of a k-dimensional sphere Bn within which all points {right arrow over (x)}i are situated, with i=1, . . . , n;
- and
- the derived quantities {right arrow over (m)}n and rn are fed to the Kalman filter for determining the sate of the body.
A system for determining the physical state of a body, said system comprising:
- a plurality of sensors which generate a number n of measured values {right arrow over (x)}i for physical quantities that are indicative of states of the body, with i=1 . . . n;
- a computing device which processes the measured values of a state in each case and computes a first quantity {right arrow over (m)}n and a second quantity rn, the quantity {right arrow over (m)}n being a center point vector and the quantity rn being a radius of a k-dimensional sphere Bn within which all points {right arrow over (x)}i with i=1, . . . , n are situated;
- and
- a Kalman filter which is coupled to the computing device to receive the computed first and second quantities, which are processed therein to generate an output that is indicative of the physical state of the body.
Dependencies are inferred from the claim text.