Error detection in critical repeating data in a wireless sensor system

• US 9,226,701 B2
• Filed: 04/28/2010
• Issued: 01/05/2016
• Est. Priority Date: 04/28/2009
• Status: Expired due to Fees

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Sloan, Mark Kent, Fennell, Martin J.
• Primary Examiner(s): Decady, Albert
• Assistant Examiner(s): ALSHACK, OSMAN M
• Application Number:
  US12/769,633
• Publication Number:
  US 20100275108A1
• Time in Patent Office: 2,078 Days
• Field of Search: 714/714, 714/723, 714/758, 714/776, 714/799, 714/819, 714/820, 714/821, 714/822, 714/824, 714/706, 600/345, 600/347, 600/365, 600/309, 600/316, 600/319, 340/540, 340/500
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/14 Devices for taking samples of blood hypodermic syringes A61M5/00; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood measuring of blood pressure A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: G06F 11/10 Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
• CPC Class Codes: G06F 11/1008 in individual solid state devices G06F11/1004 takes precedence
• CPC Class Codes: G06F 11/1076 Parity data used in redundant arrays of independent storages, e.g. in RAID systems
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/24 Testing correct operation
• CPC Class Codes: H04L 43/04 Processing captured monitoring data, e.g. for logfile generation
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• 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
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Provided are methods, systems, and apparatus for error detection of bits of a data packet received at a receiver unit by detecting corrupted data bits.

Claims

1. A method, comprising:

generating, using a sensor control unit coupled to an analyte sensor in fluid contact with body fluid, a data packet including a current sensor data point, one or more prior sensor data points, and calibration data;

communicating the data packet including the current sensor data point, the one or more prior sensor data points, and the calibration data to a receiver; and

incrementing, at the sensor control unit, a predetermined value when the data packet is communicated to the receiver.

2. The method of claim 1, wherein the data packet is communicated via wireless communication.

3. The method of claim 2, wherein the wireless communication is radio frequency (RF) communication.

4. The method of claim 1, wherein the calibration data comprises 8 bytes of data.

5. The method of claim 1, wherein the current sensor data point and the one or more prior sensor data points are obtained using the analyte sensor.

6. The method of claim 5, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

7. The method of claim 5, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

8. The method of claim 6, wherein the working electrode comprises a mediator crosslinked with the polymer disposed on the working electrode.

9. The method of claim 1, wherein the calibration data is used to calibrate the analyte sensor.

10. The method of claim 1, wherein the data packet further includes temperature data associated with the analyte sensor.

11. An apparatus, comprising:

an analyte sensor in fluid contact with bodily fluid;

a communication unit coupled to the analyte sensor and configured to communicate a data packet including a current sensor data point, one or more prior sensor data points, and calibration data to a receiver;

a memory operatively coupled to the communication unit and configured to store the current sensor data point, the one or more prior sensor data points, and the calibration data; and

an incrementer configured to increment a predetermined value when the data packet is communicated to the receiver.

12. The apparatus of claim 11, wherein the communication unit is a wireless communication unit.

13. The apparatus of claim 12, wherein the wireless communication unit is a radio frequency (RF) communication unit.

14. The apparatus of claim 11, wherein the calibration data comprises 8 bytes of data.

15. The apparatus of claim 11, further comprising the analyte sensor operatively coupled to the communication unit and configured to obtain the current sensor data point and the one or more prior sensor data points.

16. The apparatus of claim 15, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

17. The apparatus of claim 15, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

18. The apparatus of claim 16, wherein the working electrode comprises a mediator crosslinked with the polymer disposed on the working electrode.

19. The apparatus of claim 11, wherein the calibration data is used to calibrate the analyte sensor.

20. The apparatus of claim 11, wherein the data packet further includes temperature data associated with the analyte sensor.

21. A data monitoring and management system, comprising:

an analyte sensor in fluid contact with bodily fluid;

a communication link;

a sensor control unit coupled to the analyte sensor, the sensor control unit, comprising;

a communication unit operatively coupled to the communication link, the communication unit configured to communicate a data packet including a current sensor data point, one or more prior sensor data points, and calibration data; and

an incrementer configured to increment a predetermined value with each communication of the data packet; and

a receiver operatively coupled to the communication link, the receiver configured to receive the communicated data packet.

22. The system of claim 21, wherein the communication link is a wireless communication link.

23. The system of claim 22, wherein the wireless communication link is a radio frequency (RF) communication link.

24. The system of claim 21, further comprising the analyte sensor operatively coupled to the communication unit and configured to obtain the current sensor data point and the one or more prior sensor data points.

25. The system of claim 24, wherein the current sensor data point is obtained using the analyte sensor comprising a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

26. The system of claim 24, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

27. The system of claim 25, wherein the working electrode comprises a mediator crosslinked with the polymer disposed on the working electrode.

28. The system of claim 21, wherein the calibration data is used to calibrate the analyte sensor.

29. The system of claim 21, wherein the data packet further includes temperature data associated with the analyte sensor.