Granted Patent B2

US 8,838,421 · App. 13/249,271 · Granted Sep 16, 2014

Abstract

Claims (21)

1. A method of calculating sensor modelling coefficients, the method comprising:

determining at least one preliminary coefficient value for at least a first sensor modelling coefficient;

calculating at least one coefficient value for at least one further sensor modelling coefficient using the at least one preliminary coefficient value and at least one data measurement value;

calculating at least one refined coefficient value for the first sensor modelling coefficient using the at least one calculated coefficient value for the at least one further sensor modelling coefficient and the at least one data measurement value;

storing the calculated refined coefficient in a sensor system for converting a digitized sensor signal to an estimated sensor output signal.

2. The method of claim 1 , wherein the at least first sensor modelling coefficient comprises at least one first order coefficient and the at least one further sensor modelling coefficient comprises at least one second order coefficient, wherein the first order is higher than the second order.

3. The method of claim 1 , wherein the method comprises determining, as the at least one preliminary coefficient value, at least one mean coefficient value for the at least first sensor modelling coefficient.

4. The method of claim 3 , wherein the method comprises determining, as the at least one preliminary coefficient value, at least one least mean square coefficient value for the at least first sensor modelling coefficient.

5. The method of claim 1 , further comprising solving at least one sensor modelling equation using the at least one preliminary coefficient value for the at least first sensor modelling coefficient and the at least one data measurement value to calculate the at least one coefficient value for the at least one further sensor modelling coefficient.

6. The method of claim 5 , further comprising solving the at least one sensor modelling equation using the at least one calculated coefficient value for the at least one further sensor modelling coefficient and the at least one data measurement value to calculate the at least one refined coefficient value for the at least first sensor modelling coefficient.

7. The method of claim 1 , wherein the method further comprises calculating at least one refined coefficient value for the at least one further sensor modelling coefficient using the at least one refined coefficient value for the at least first sensor modelling coefficient and at least one data measurement value.

8. The method of claim 1 , further comprising modelling at least one of a temperature sensor and a pressure sensor using the stored value.

9. An integrated circuit comprising at least one signal processing module arranged to calculate sensor modelling coefficients and a memory for storing the calculated sensor modelling coefficients, the at least one signal processing module being arranged to:

determine at least one preliminary coefficient value for at least a first sensor modelling coefficient;

calculate at least one coefficient value for at least one further sensor modelling coefficient using the at least one preliminary coefficient value for the at least first sensor modelling coefficient and at least one data measurement value; and

calculate at least one refined coefficient value for the at least first sensor modelling coefficient using the at least one calculated coefficient value for the at least one further sensor modelling coefficient and the at least one data measurement value.

10. A non-transitory tangible computer program product having executable program code stored therein for calculating sensor modelling coefficients for multiple sensor regions of operation, the program code operable for:

determining at least one preliminary coefficient value for at least a first sensor modelling coefficient;

calculating at least one coefficient value for at least one further sensor modelling coefficient using the at least one preliminary coefficient value for the at least first sensor modelling coefficient and at least one data measurement value; and

calculating at least one refined coefficient value for the at least first sensor modelling coefficient using the at least one calculated coefficient value for the at least one further sensor modelling coefficient and the at least one data measurement value.

11. The tangible computer program product of claim 10 , wherein the tangible computer program product comprises at least one of: a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a Read Only Memory, ROM, a Programmable Read Only Memory, PROM, an Erasable Programmable Read Only Memory, EPROM, an Electrically Erasable Programmable Read Only Memory, EEPROM, and a Flash memory.

Assignments (31)