SYSTEM AND METHOD FOR SCALABLE CLOUD-BASED SENSOR CALIBRATION

• US 20170146375A1
• Filed: 11/19/2015
• Published: 05/25/2017
• Est. Priority Date: 11/19/2015
• Status: Active Grant

• Current Assignee: Jabil Inc.
• Original Assignee: Jabil Circuit Incorporated (Jabil Inc.)
• Inventors: Luo, Yong, Suarez, Gustavo Armando
• Granted Patent: US 10,551,226 B2
• Time in Patent Office: Days
• CPC Class Codes: G01D 18/00 Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
• CPC Class Codes: G01D 18/008 with calibration coefficients stored in memory
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

A scalable sensor calibration system and method configured to calibrate and/or recalibrate sensors based on calibration parameters received from secure cloud storage. A plurality of calibration parameter sets for a plurality of sensors may be received from the secure cloud storage and successively transmitted to each of the plurality of sensors using a calibration system bus interface. Calibration output data generated by the sensors using the calibration parameters is received and used to create new, optimized calibration parameters sets.

Claims

1. A computer system for calibrating one or more sensors, comprising:

a processor;

a communication interface operatively coupled to the processor, the communication interface configured to receive a calibration parameter set via a computer network;

a calibration system bus interface operatively coupled to the processor, the calibration system bus interface transmits the received calibration parameter set to the one or more sensors,

wherein the calibration system bus interface receives calibration output data from the one or more sensors in response to the calibration parameter being set using the transmitted parameter set, and

wherein the communications interface transmits the calibration output data to the computer network, thereby generating a new calibration parameter set.

2. The computer system of claim 1, wherein the calibration output data from the sensors comprises analog front end gain data and offset value data.

3. The computer system of claim 2, wherein the calibration data output data comprises calibration coefficient value data.

4. The computer system of claim 3, wherein the calibration coefficient value data comprises at least one of analog programmable gain coefficients settings, analog filter coefficients settings, digital filter coefficients settings, digital signal processor (DSP) algorithmic implementation coefficients settings, sensor manufacturing process correlated coefficients settings, sensor end user events correlated coefficients settings, sensor device temperature dependent analytic coefficients settings, sensor device voltage dependent analytic coefficients settings, sensor device process dependent analytic coefficients settings, sensor fusion implementation correlated coefficients settings, sensor module manufacturing process phase correlated coefficients settings, and sensor module manufacturing end user events correlated coefficients settings.

5. The computer system of claim 1, wherein the calibration output data comprises sensor operation based on at least one of a minimum and maximum sensing value based on the calibration parameter set.

6. The computer system of claim 1, wherein the calibration output data comprises sensor operation based on a plurality of predetermined sensing values, based on the calibration parameter set

7. The computer system of claim 1, wherein the calibration system bus interface comprises one of an Inter-IC bus (I²C) interface, a serial peripheral interface (SPI), an IEEE 1461 interface, and a Universal Micro-Sensor Interface (UMSI).

8. A method for calibrating one or more sensors in a system, comprising:

receiving a calibration parameter set for the one or more sensors from a computer network;

providing the received calibration parameter set to the one or more sensors using a calibration system bus interface;

generating calibration output data from the sensors in response to the calibration parameter set;

transmitting the calibration output data to the computer network; and

receiving a new calibration parameter set for the one or more sensors in response to the calibration output data.

9. The method of claim 8, wherein the calibration output data from the sensors comprises analog front end gain data and offset value data.

10. The method of claim 9, wherein the calibration data output data comprises calibration coefficient value data.

11. The method of claim 10, wherein the calibration coefficient value data comprises at least one of analog programmable gain coefficients settings, analog filter coefficients settings, digital filter coefficients settings, digital signal processor (DSP) algorithmic implementation coefficients settings, sensor manufacturing process correlated coefficients settings, sensor end user events correlated coefficients settings, sensor device temperature dependent analytic coefficients settings, sensor device voltage dependent analytic coefficients settings, sensor device process dependent analytic coefficients settings, sensor fusion implementation correlated coefficients settings, sensor module manufacturing process phase correlated coefficients settings, and sensor module manufacturing end user events correlated coefficients settings.

12. The method of claim 8, wherein the calibration output data comprises sensor operation based on at least one of a minimum and maximum sensing value based on the calibration parameter set.

13. The method of claim 8, wherein the calibration output data comprises sensor operation based on a plurality of predetermined sensing values, based on the calibration parameter set

14. The method of claim 8, wherein transmitting the received calibration parameter set comprises transmitting using one of an Inter-IC bus (I²C) interface, a serial peripheral interface (SPI), an IEEE 1461 interface, and a Universal Micro-Sensor Interface (UMSI).

15. A method for calibrating one or more sensors in a system, comprising:

receiving a plurality of calibration parameter sets for a plurality sensors from a computer network;

successively transmitting each of the received calibration parameter sets to each of the plurality of sensors using a calibration system bus interface;

successively receiving and storing calibration output data from each of the plurality of sensors in response to each calibration parameter set transmitted;

transmitting the calibration output data to the computer network; and

receiving a new calibration parameter set for the one or more sensors in response to the calibration output data.

16. The method of claim 15, wherein the calibration output data from the sensors comprises analog front end gain data and offset value data.

17. The method of claim 16, wherein the calibration data output data comprises calibration coefficient value data.

18. The method of claim 17, wherein the calibration coefficient value data comprises at least one of analog programmable gain coefficients settings, analog filter coefficients settings, digital filter coefficients settings, digital signal processor (DSP) algorithmic implementation coefficients settings, sensor manufacturing process correlated coefficients settings, sensor end user events correlated coefficients settings, sensor device temperature dependent analytic coefficients settings, sensor device voltage dependent analytic coefficients settings, sensor device process dependent analytic coefficients settings, sensor fusion implementation correlated coefficients settings, sensor module manufacturing process phase correlated coefficients settings, and sensor module manufacturing end user events correlated coefficients settings.

19. The method of claim 15, wherein the calibration output data comprises sensor operation based on at least one of a minimum and maximum sensing value based on the calibration parameter set.

20. The method of claim 15, wherein the calibration output data comprises sensor operation based on a plurality of predetermined sensing values, based on the calibration parameter set