Electronic Device, Arrangement, and Method of Estimating Fluid Loss

• US 20090157327A1
• Filed: 12/05/2008
• Published: 06/18/2009
• Est. Priority Date: 12/14/2007
• Status: Abandoned Application

• Current Assignee: Polar Electro Oy
• Original Assignee: Polar Electro Oy
• Inventors: Nissila, Juuso
• Application Number:
  US12/328,987
• Publication Number:
  US 20090157327A1
• Time in Patent Office: Days
• US Class Current: 702/19
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/4266 sweat secretion
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses

Abstract

There is provided an electronic device comprising: a processing unit configured to receive skin temperature data generated by a measuring unit, to receive performance data from a measuring unit, and to determine a theoretical fluid loss value on the basis of the received performance data. The electronic device further comprises: a processing unit configured to determine a relation between a predetermined perspiration threshold and a skin temperature value deduced from the received skin temperature data; and to determine a real fluid loss value on the basis of the theoretical fluid loss value and the determined relation between the predetermined perspiration threshold and the skin temperature value.

Claims

1. An electronic device, comprising:

a processing unit configured to receive skin temperature data generated by a measuring unit, to receive performance data from a measuring unit, and to determine a theoretical fluid loss value on the basis of the received performance data, the electronic device further comprising a processing unit configured;

to determine a relation between a predetermined perspiration threshold and a skin temperature value deduced from the received skin temperature data; and

to determine a real fluid loss value on the basis of the theoretical fluid loss value and the determined relation between the predetermined perspiration threshold and the skin temperature value.

2. The electronic device of claim 1, wherein the processing unit is further configured to generate a performance instruction based on the determined real fluid loss value.

3. The electronic device of claim 1, wherein the determined real fluid loss value is smaller than the theoretical fluid loss value if the skin temperature value is less than the predetermined perspiration threshold.

4. The electronic device of claim 1, wherein the determined real fluid loss value is approximately the theoretical fluid loss value if the skin temperature equals the predetermined perspiration threshold.

5. The electronic device of claim 1, wherein the determined real fluid loss value is greater than the theoretical fluid loss value if the skin temperature is greater than the predetermined perspiration threshold.

6. The electronic device of claim 1, wherein the electronic device further comprises a calculator configured to determine a skin temperature coefficient factor on the basis of a relation between the skin temperature value and the predetermined perspiration threshold.

7. The electronic device of claim 6, wherein the calculator is configured to determine the real fluid loss value by using the determined skin temperature coefficient factor and the theoretical fluid loss value.

8. The electronic device of claim 6, wherein the value of the skin temperature coefficient factor increases as a function of the skin temperature.

9. The electronic device of claim 1, wherein the skin temperature value is a weighted mean value of the received skin temperature data, the skin temperature data including two or more skin temperature values measured from different parts of the body.

10. The electronic device of claim 2, wherein the processing unit is further configured to estimate an amount of fluids to be consumed on the basis of the determined real fluid loss value, and the generated performance instruction includes an instruction for consuming the estimated amount of fluids.

11. The electronic device of claim 1, wherein the processing unit is further configured to generate a performance instruction to dress or undress depending on the determined relation between the skin temperature value and the predetermined perspiration threshold.

12. An arrangement, comprising:

a measuring unit configured to measure skin temperature data;

a measuring unit configured to measure performance data;

a receiving unit configured to receive the measured skin temperature data, and to receive the measured performance data; and

a calculator configured to determine a theoretical fluid loss value on the basis of the received performance data, the arrangement further comprising;

a calculator configured to determine a relation between a predetermined perspiration threshold and a skin temperature value deduced from the received skin temperature data; and

a calculator configured to determine a real fluid loss value on the basis of the theoretical fluid loss value and the determined relation between the predetermined perspiration threshold and the skin temperature value.

13. The arrangement of claim 12, wherein the arrangement further comprises;

a controller configured to generate a performance instruction based on the determined real fluid loss value; and

an indicator configured to indicate the generated performance instruction on a user interface.

14. The arrangement of claim 12, wherein the determined real fluid loss value is smaller than the theoretical fluid loss value if the skin temperature value is less than the predetermined perspiration threshold, approximately the theoretical fluid loss value if the skin temperature equals the predetermined perspiration threshold, and greater than the theoretical fluid loss value if the skin temperature is greater than the predetermined perspiration threshold.

15. The arrangement of claim 12, wherein the arrangement further comprises a calculator configured to determine a skin temperature coefficient factor on the basis of a relation between the skin temperature value and the predetermined perspiration threshold.

16. The arrangement of claim 12, wherein the skin temperature value is a weighted mean value of the received skin temperature data, the skin temperature data including two or more skin temperature values measured from different parts of the body.

17. The arrangement of claim 13, wherein the arrangement further comprises a controller configured to estimate an amount of fluids to be consumed on the basis of the determined real fluid loss value, and the generated performance instruction includes an instruction of consuming the estimated amount of fluids.

18. The arrangement of claim 12, wherein the arrangement further comprises a controller configured to generate a performance instruction to dress or undress depending on the determined relation between the skin temperature value and the predetermined perspiration threshold.

19. A method of estimating fluid loss, the method comprising:

receiving skin temperature data;

receiving performance data;

determining a theoretical fluid loss value on the basis of the received performance data;

determining a relation between a predetermined perspiration threshold and a skin temperature value deduced from the received skin temperature data; and

determining a real fluid loss value on the basis of the theoretical fluid loss value and the determined relation between the predetermined perspiration threshold and the skin temperature value.

20. The method of claim 19, the method further comprising:

generating a performance instruction based on the determined real fluid loss value.

21. The method of claim 19, wherein the determined real fluid loss value is smaller than the theoretical fluid loss value if the skin temperature value is less than the predetermined perspiration threshold, approximately the theoretical fluid loss value if the skin temperature equals the predetermined perspiration threshold, and greater than the theoretical fluid loss value if the skin temperature is greater than the predetermined perspiration threshold.

22. The method of claim 19, the method further comprising determining a skin temperature coefficient factor on the basis of a relation between the skin temperature value and the predetermined perspiration threshold.

23. The method of claim 19, the method further comprising estimating an amount of fluids to be consumed on the basis of the determined real fluid loss value, and the generated performance instruction includes an instruction of consuming the estimated amount of fluids.

24. The method of claim 19, the method further comprising generating a performance instruction to dress or undress depending on the determined relation between the skin temperature value and the predetermined perspiration threshold.

25. A computer-readable distribution medium encoding a computer program of instructions for executing a computer process, the process comprising:

receiving skin temperature data, receiving performance data, and determining a theoretical fluid loss value on the basis of the received performance data, the process further comprising;

determining a relation between a predetermined perspiration threshold and a skin temperature value deduced from the received skin temperature data; and

determining a real fluid loss value on the basis of the theoretical fluid loss value and the determined relation between the predetermined perspiration threshold and the skin temperature value.

26. The computer-readable distribution medium of claim 25, wherein the determined real fluid loss value is smaller than the theoretical fluid loss value if the skin temperature value is less than the predetermined perspiration threshold, approximately the theoretical fluid loss value if the skin temperature equals the predetermined perspiration threshold, and greater than the theoretical fluid loss value if the skin temperature is greater than the predetermined perspiration threshold.

27. The computer-readable distribution medium of claim 25, the process further comprising determining a skin temperature coefficient factor on the basis of a relation between the skin temperature value and the predetermined perspiration threshold.

28. The computer-readable distribution medium of claim 25, the distribution medium including at least one of the following media:

a computer readable medium, a program storage medium, a record medium, a computer readable memory, a computer readable software distribution package, a computer readable signal, a computer readable telecommunications signal, and a computer readable compressed software package.