Error Detection in Critical Repeating Data in a Wireless Sensor System

• US 20100275108A1
• Filed: 04/28/2010
• Published: 10/28/2010
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Inventors: Sloan, Mark Kent, Fennell, Martin J.
• Granted Patent: US 9,226,701 B2
• Time in Patent Office: Days
• US Class Current: 714/819
• 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:

receiving a data packet including time sensitive data and rolling data;

comparing the received rolling data to a previously stored corresponding rolling data;

incrementing a counter when the received rolling data is within a predetermined percentage of the previously stored rolling data;

determining if the counter is greater than or equal to a predetermined threshold; and

accepting the received rolling data as valid.

2. The method of claim 1, wherein the data packet is received 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 counter is incremented only when the received rolling data is equal to the previously stored rolling data.

5. The method of claim 1, wherein the predetermined threshold is two.

6. The method of claim 1, wherein the counter is an array.

7. The method of claim 5, wherein the received rolling data is calibration data.

8. The method of claim 7, wherein calibration data comprises 8 bytes of data, and the rolling data of the data packet is 1 byte of the 8 bytes of calibration data.

9. The method of claim 8, wherein each byte of the calibration data corresponds to an element of the counter array.

10. The method of claim 9, wherein incrementing the counter comprises incrementing the corresponding element of the counter array.

11. The method of claim 10, wherein determining if the counter is greater than or equal to a predetermined threshold comprises determining if all the elements of the counter array are greater than or equal to a predetermined threshold.

12. The method of claim 11, wherein the predetermined threshold is two.

13. The method of claim 6, wherein each element of the array corresponds to a type of rolling data.

14. The method of claim 13, wherein incrementing the counter comprises incrementing the corresponding element of the counter array.

15. The method of claim 1, further comprising replacing the previously stored rolling data with the received rolling data when the received rolling data is not within the predetermined percentage of the previously stored rolling data.

16. An apparatus, comprising:

a receiver unit configured to receive a data packet including time sensitive data and rolling data;

a memory operatively coupled to the receiver unit and configured to store a previous corresponding rolling data;

a component configured to compare the received rolling data with the stored rolling data; and

a counter configured to increment when the received rolling data is within a predetermined percentage of the stored rolling data.

17. The apparatus of claim 16, wherein the receiver unit is a wireless receiver unit.

18. The apparatus of claim 17, wherein the wireless receiver unit is a radio frequency (RF) communication receiver unit.

19. The apparatus of claim 16, wherein the counter is configured to increment only when the received rolling data is equal to the stored rolling data.

20. The apparatus of claim 16, wherein the received rolling data is accepted as valid when the counter is greater than or equal to a predetermined threshold.

21. The apparatus of claim 20, wherein the predetermined threshold is two.

22. The apparatus of claim 16, wherein the counter is an array.

23. The apparatus of claim 22, wherein the received rolling data is calibration data.

24. The apparatus of claim 23, wherein calibration data comprises 8 bytes of data, and the rolling data of the data packet is 1 byte of the 8 bytes of calibration data.

25. The apparatus of claim 24, wherein each byte of the calibration data corresponds to an element of the counter array.

26. The apparatus of claim 25, wherein the corresponding element of the counter array is configured to increment when the received rolling data is within a predetermined percentage of the stored rolling data.

27. The apparatus of claim 26, wherein the received rolling data is accepted as valid when all the elements of the counter array are greater than or equal to a predetermined threshold.

28. The apparatus of claim 16, further comprising replacing the stored rolling data in the memory with the received rolling data when the received rolling data is not within the predetermined percentage of the previously stored rolling data.

29. A data monitoring and management system, comprising:

a communication link;

a transmitter operatively coupled to the communication link, the transmitter configured to transmit a data packet including time sensitive data and rolling data; and

a receiver operatively coupled to the communication link, the receiver configured to receive the transmitted data packet;

wherein the receiver is configured to determine if the received rolling data is valid by comparing the received rolling data to a previously stored corresponding rolling data, incrementing a counter when the received rolling data is within a predetermined percentage of the previously stored rolling data, and determining if the counter is greater than or equal to a predetermined threshold.

30. The system of claim 29, wherein the communication link is a wireless communication link.

31. The system of claim 30, wherein the wireless communication link is a radio frequency (RF) communication link.