Dive computer with free dive mode and wireless data transmission
A dive computer with a free dive mode and/or wireless data transmission capabilities. In one embodiment the invention relates to a diving apparatus including a dive computer having a free dive mode, where the dive computer is configured to calculate a nitrogen loading in the free dive mode using a default value which is the fraction of oxygen in air, and where the free dive mode is used when a diver makes a dive without a self-contained underwater breathing apparatus. Another embodiment includes a method of operating a dive computer including recording two or more first identifiers, receiving pressure information from two or more pressure transmitters, the pressure information comprising second identifiers and pressure measurements, determining whether the pressure information contains one of the two or more first identifiers, and displaying a message indicative of the pressure information that contains one of the two or more first identifiers.
1. A diving apparatus comprising:
a dive computer having a free dive mode;
wherein the dive computer is configured to calculate a nitrogen loading in the free dive mode using a default value which is the fraction of oxygen in air;
wherein the free dive mode is used when a diver makes a dive without a self-contained underwater breathing apparatus; and
wherein the dive computer is configured to allow the diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least thirty seconds.
2. The diving apparatus of claim 1 , wherein the dive computer is configured to compare a threshold with the calculated nitrogen loading.
3. The diving apparatus of claim 2 , wherein the dive computer is configured to activate an alarm based on the comparison of the threshold and the calculated nitrogen loading.
4. The diving apparatus of claim 1 , wherein the dive computer is configured to calculate the nitrogen loading in the free dive mode using the default value and a residual nitrogen loading.
5. The diving apparatus of claim 4 , wherein the residual nitrogen loading is a sum of nitrogen loading calculations made over a prior time period.
6. The dive apparatus of claim 1 , wherein the dive computer comprises:
a processor;
a pressure transducer connected to the processor;
a display connected to the processor; and
clock circuitry connected to the processor;
wherein the processor is configured to determine time using the clock circuitry;
wherein the processor is configured to determine depth of submersion using the pressure transducer; and
wherein the processor is configured to provide depth and time information using the display.
7. The diving apparatus of claim 1 , wherein the dive computer is configured to calculate at least one of air time remaining, dive time remaining and desaturation time, the calculation based on the nitrogen loading.
8. A diving apparatus comprising:
a dive computer having a free dive mode;
wherein the dive computer is configured to calculate a nitrogen loading in the free dive mode using a default value which is the fraction of oxygen in air;
wherein the free dive mode is used when a diver makes a dive without a self-contained underwater breathing apparatus; and
wherein the dive computer is configured to allow the diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least one, two or five minutes.
9. A diving apparatus comprising:
a dive computer having a free dive mode;
wherein the dive computer is configured to calculate a nitrogen loading in the free dive mode using a default value which is the fraction of oxygen in air;
wherein the free dive mode is used when a diver makes a dive without a self-contained underwater breathing apparatus; and
wherein the dive computer has a normal dive mode;
wherein the dive computer is configured to calculate nitrogen loading in the normal dive mode accounting for use of a self-contained breathing apparatus; and
wherein the dive computer is configured to allow a dive in the free dive mode following a dive in the normal dive mode.
10. The diving apparatus of claim 9 , wherein the dive computer is configured to compare a threshold with the calculated nitrogen loading.
11. The diving apparatus of claim 9 , wherein the dive computer is configured to activate an alarm based on the comparison of the threshold and the calculated nitrogen loading.
12. The diving apparatus of claim 9 , wherein the dive computer is configured to calculate the nitrogen loading in the free dive mode using the default value and a residual nitrogen loading.
13. The diving apparatus of claim 12 , wherein the residual nitrogen loading is a sum of nitrogen loading calculations made over a prior time period.
14. The dive apparatus of claim 9 , wherein the dive computer comprises:
a processor;
a pressure transducer connected to the processor;
a display connected to the processor; and
dock circuitry connected to the processor;
wherein the processor is configured to determine time using the clock circuitry;
wherein the processor is configured to determine depth of submersion using the pressure transducer; and
wherein the processor is configured to provide depth and time information using the display.
15. The diving apparatus of claim 9 , wherein the dive computer is configured to calculate at least one of air time remaining, dive time remaining and desaturation time, the calculation based on the nitrogen loading.
16. A diving apparatus comprising:
a dive computer having a free dive mode;
wherein the dive computer is configured to calculate a nitrogen loading in the free dive mode using a default value which is the fraction of oxygen in air;
wherein the free dive mode is used when a diver makes a dive without a self-contained underwater breathing apparatus; and
wherein the dive computer has a normal dive mode;
wherein the dive computer is configured to calculate nitrogen loading in the normal dive mode accounting for use of a self-contained breathing apparatus; and
wherein the dive computer is configured to allow a dive in the normal dive mode following a dive in the free dive mode.
17. The diving apparatus of claim 16 , wherein the dive computer is configured to compare a threshold with the calculated nitrogen loading.
18. The diving apparatus of claim 16 , wherein the dive computer is configured to activate an alarm based on the comparison of the threshold and the calculated nitrogen loading.
19. The diving apparatus of claim 16 , wherein the dive computer is configured to calculate the nitrogen loading in the free dive mode using the default value and a residual nitrogen loading.
20. The diving apparatus of claim 19 , wherein the residual nitrogen loading is a sum of nitrogen loading calculations made over a prior time period.
21. The dive apparatus of claim 16 , wherein the dive computer comprises:
a processor;
a pressure transducer connected to the processor;
a display connected to the processor; and
clock circuitry connected to the processor;
wherein the processor is configured to determine time using the clock circuitry;
wherein the processor is configured to determine depth of submersion using the pressure transducer; and
wherein the processor is configured to provide depth and time information using the display.
22. The diving apparatus of claim 16 , wherein the dive computer is configured to calculate at least one of air time remaining, dive time remaining and desaturation time, the calculation based on the nitrogen loading.
23. A method of operating a dive computer comprising:
accepting an input specifying one or more modes of operation, wherein the one or more modes of operation comprises a free dive mode;
calculating using said dive computer a nitrogen loading in the free dive mode using the fraction of oxygen in air;
allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least thirty seconds.
24. The method of claim 23 , wherein the nitrogen loading calculation is a function of a residual nitrogen loading.
25. The method of claim 23 , further comprising comparing the calculated nitrogen loading to a threshold.
26. The method of claim 25 , further comprising activating an alarm based on the comparison of the calculated nitrogen loading to the threshold.
27. The method of claim 23 , further comprising using the calculated nitrogen loading to calculate air time remaining, dive time remaining and/or desaturation time.
28. The method of claim 23 , further comprising:
determining a time using a clock circuitry;
determining a depth of submersion using a pressure transducer; and
displaying the depth and time.
29. A method of operating a dive computer comprising:
accepting an input specifying one or more modes of operation, wherein the one or more modes of operation comprises a free dive mode;
calculating using said dive computer a nitrogen loading in the free dive mode using the fraction of oxygen in air;
allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least one, two or five minutes.
30. A method of operating a dive computer comprising:
accepting an input specifying one or more modes of operation, wherein the one or more modes of operation comprises a free dive mode;
calculating using said dive computer a nitrogen loading in the free dive mode using the fraction of oxygen in air;
where the one or more modes further comprise a normal dive mode,
calculating a nitrogen loading in the normal dive mode, the calculation accounting for use of a self-contained breathing apparatus; and
allowing a dive in the free dive mode following a dive in the normal dive mode.
31. The method of claim 30 , wherein the nitrogen loading calculation is a function of a residual nitrogen loading.
32. The method of claim 30 , further comprising comparing the calculated nitrogen loading to a threshold.
33. The method of claim 32 , further comprising activating an alarm based on the comparison of the calculated nitrogen loading to the threshold.
34. The method of claim 30 , further comprising using the calculated nitrogen loading to calculate air time remaining, dive time remaining and/or desaturation time.
35. The method of claim 30 , further comprising:
determining a time using a dock circuitry;
determining a depth of submersion using a pressure transducer; and
displaying the depth and time.
36. The method of claim 30 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least thirty seconds.
37. The method of claim 30 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least one minute.
38. The method of claim 30 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least two minutes.
39. The method of claim 30 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least five minutes.
40. A method of operating a dive computer comprising:
accepting an input specifying one or more modes of operation, wherein the one or more modes of operation comprises a free dive mode;
calculating using said dive computer a nitrogen loading in the free dive mode using the fraction of oxygen in air;
where the one or more modes further comprise a normal dive mode,
calculating a nitrogen loading in the normal dive mode, the calculation accounting for use of a self-contained breathing apparatus; and
allowing a dive in the normal dive mode following a dive in the free dive mode.
41. The method of claim 40 , wherein the nitrogen loading calculation is a function of a residual nitrogen loading.
42. The method of claim 40 , further comprising comparing the calculated nitrogen loading to a threshold.
43. The method of claim 42 , further comprising activating an alarm based on the comparison of the calculated nitrogen loading to the threshold.
44. The method of claim 40 , further comprising using the calculated nitrogen loading to calculate air time remaining, dive time remaining and/or desaturation time.
45. The method of claim 40 , further comprising:
determining a time using a clock circuitry;
determining a depth of submersion using a pressure transducer; and
displaying the depth and time.
46. The method of claim 40 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least thirty seconds.
47. The method of claim 40 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least one minute.
48. The method of claim 40 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least two minutes.
49. The method of claim 40 , further comprising allowing a diver to perform a second dive that is treated as a repetitive dive following a dive without a self-contained underwater breathing apparatus after at least five minutes.