CN115535194A - Diving decompression station residence time determination and diving decompression method and system - Google Patents
Diving decompression station residence time determination and diving decompression method and system Download PDFInfo
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- 230000006837 decompression Effects 0.000 title claims abstract description 182
- 230000009189 diving Effects 0.000 title claims abstract description 171
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- 230000008520 organization Effects 0.000 claims abstract description 9
- 238000004088 simulation Methods 0.000 claims description 59
- 230000009467 reduction Effects 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
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- 230000001174 ascending effect Effects 0.000 claims description 13
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- 229910052734 helium Inorganic materials 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000001307 helium Substances 0.000 description 6
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- 206010011951 Decompression Sickness Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a method and a system for determining the residence time of a diving decompression station and diving decompression, wherein the method for determining the residence time of the diving decompression station comprises the following steps: acquiring the depth of a current stop station; simulating a diver to wait for a first designated time at the current stop station according to the depth of the current stop station; judging whether the diver can ascend, and if so, taking the total waiting time at the current stop station as the time for the diver to stop at the current stop station; simulating to wait for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot rise until the diver can rise, and taking the total waiting time at the current stop station as the time for the diver to stay at the current stop station; judging whether the diver can ascend, comprising: and judging whether the upper limit of the decompression of each theoretical organization when the current diver stays at the current station is not more than the absolute pressure of the environment of the next decompression station. The invention can reduce the potential safety hazard in the diving process.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a method and a system for determining the residence time of a diving decompression station and diving decompression.
Background
The diving technique is an important technique for exploring activities such as underwater world, underwater construction or underwater military operation. How to dive more efficiently and safely is the key research direction of all countries in the world.
Most of the existing diving equipment calculates a corresponding decompression scheme based on a traditional He-Erden (Haldane) decompression model, but the traditional He-Erden decompression model is not reasonable enough for half division of theoretical organization, is only simple linear division and is only suitable for some simple diving activities. In complex diving activities, the traditional He-erdon decompression model cannot provide specific time for diving personnel to stay at a corresponding decompression stay station, so that the diving personnel are in danger of causing decompression diseases in the diving process, and great potential safety hazards are brought.
Disclosure of Invention
In order to solve the problems, the diving decompression station stay time determining and diving decompression method and system provided by the invention determine the total waiting time of the diving personnel at the current stay station by simulating the diving state of the diving personnel and by simulating the diving personnel to wait at the current stay station, thereby determining the stay time of the diving personnel at the current stay station, further reducing the potential safety hazard in the diving process and enabling the diving personnel to dive safely.
In a first aspect, the present invention provides a method for determining a residence time of a diving decompression station, comprising:
acquiring the depth of a current stop station, wherein the current stop station is a decompression stop station where simulated divers are currently located;
simulating a diver to wait for a first designated time at the current stop station according to the depth of the current stop station;
judging whether the diver can ascend, if so, taking the total waiting time at the current stop station as the time for the diver to stop at the current stop station;
simulating to wait for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot rise until the diver can rise, and taking the total waiting time at the current stop station as the time for the diver to stay at the current stop station;
wherein, judge whether dive personnel can rise, include: and judging whether the upper limit of the decompression of each theoretical organization of the current diver at the current stop station is not more than the absolute pressure of the environment of the next decompression stop station, if so, judging that the diver can ascend according to the judgment result, and if not, judging that the diver cannot ascend according to the judgment result.
Optionally, the method further comprises:
and if the judgment result is that the diver can ascend, simulating the ascending of the distance between two adjacent decompression stop stations so as to simulate the arrival at the next decompression stop station, taking the next decompression stop station as the current stop station, and executing the step of the method for determining the residence time of the diving decompression station, which is disclosed by the claim 1.
Optionally, the method further comprises:
judging whether the depth of the current stop station is greater than zero, if not, ending the simulation;
according to the depth of the current stop station, simulating the diver to wait for a first designated time at the current stop station, comprising: waiting a first specified time at the current docking station while simulating when the depth of the current docking station is greater than zero.
In a second aspect, the present invention provides a submersible pressure reduction method, comprising:
when the water contact sensor contacts water, starting to record diving time and current diving depth;
judging whether the current diving depth is larger than a specified depth, if so, calculating a decompression scheme according to the diving time and the current diving depth;
said calculating a decompression scenario from said dive time and said current dive depth comprises: a method of determining a submersible pressure reduction station dwell time as described in any preceding claim is performed.
Optionally, said calculating a decompression scenario from said diving time and said current diving depth further comprises:
according to the diving time and the current diving depth, calculating the decompression-free time corresponding to the current decompression stop station;
the submersible pressure reduction method further comprises:
judging whether the decompression-free time corresponding to the current decompression stop station is greater than zero, and if not, judging whether the current depth is less than the depth of the current decompression stop station;
when the current depth is smaller than the depth of the current decompression stop station, alarming;
when the current depth is not less than the depth of the current decompression stop station, judging whether the current diving depth is greater than zero, if so, continuing to execute the step of calculating a decompression scheme according to the diving time and the current diving depth;
the current decompression stop station is the decompression stop station where the diver should currently stop given in the decompression scheme.
Optionally, the submersible pressure reduction method further comprises:
and when the current diving depth is not greater than the designated depth, judging whether the position of the diving personnel is ascending, if so, stopping timing.
In a third aspect, the present invention provides a system for determining a dwell time of a submersible pressure reduction station, comprising:
the second acquisition module is configured to acquire the depth of a current stop station, wherein the current stop station is a decompression stop station where a simulated diver is currently located;
the first simulation module is configured to simulate a diver to wait for a first specified time at the current stop station according to the depth of the current stop station;
the first judgment module is configured to obtain and judge whether the diver can ascend, and if so, the total waiting time at the current stop station is used as the time for the diver to stop at the current stop station;
the second simulation module is configured to simulate waiting for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot rise until the diver can rise is judged, and the total waiting time at the current stop station is used as the time for the diver to stay at the current stop station;
the first judgment module is further configured to judge whether the upper limit of the decompression of each theoretical organization of the current diver at the current stop station is not more than the absolute pressure of the environment of the next decompression stop station, if so, the judgment result is that the diver can ascend, and if not, the judgment result is that the diver cannot ascend.
Optionally, the system further comprises:
and the third simulation module is configured to simulate the distance between two adjacent decompression stop stations to reach the next decompression stop station when the diving personnel can ascend according to the judgment result, and execute the step of the diving decompression station residence time determination system by taking the next decompression stop station as the current stop station.
Optionally, the system further comprises:
the second judgment module is configured to judge whether the depth of the current stop station is larger than zero, and if not, the simulation is ended;
the first simulation module is further configured to wait a first specified time at the current docking station when the simulation is at a depth greater than zero at the current docking station.
In a fourth aspect, the present invention provides a submersible pressure reduction system comprising:
a recording module configured to start recording the diving time and the current diving depth when the water contact sensor contacts water;
a third determining module configured to determine whether the current diving depth is greater than a specified depth;
a calculation module configured to calculate a decompression scenario from the diving time and the current diving depth when the current diving depth is greater than a specified depth;
the calculation module is also configured to execute the method for determining the residence time of the diving decompression station.
Optionally, the calculation module is further configured to calculate, according to the diving time and the current diving depth, a decompression-free time corresponding to a current decompression stop station;
the submersible pressure reduction system further comprises:
the fourth judgment module is configured to judge whether the decompression-free time corresponding to the current decompression stop station is greater than zero or not;
the fifth judgment module is configured to judge whether the current depth is smaller than the depth of the current decompression stop station or not when the decompression-free time corresponding to the current decompression stop station is not larger than zero;
an alert module configured to alert when a current depth is less than a depth of the current decompression stop;
a sixth judging module configured to judge whether the current diving depth is greater than zero when the current depth is not less than the depth of the current decompression stop station;
a control execution module configured to execute the calculation module when a current diving depth is greater than zero;
the current decompression stop station is the decompression stop station where the diver should stop currently given in the decompression scheme.
Optionally, the submersible pressure reduction system further comprises:
a seventh judging module configured to judge whether the position of the diver is ascending when the current diving depth is not greater than a specified depth;
a stopping module configured to stop timing when the position of the diver is ascending.
The method and the system for determining the stay time and decompressing diving of the diving decompression station adopt an approximation method, determine the total waiting time of the diving personnel at the current stay station by simulating the diving state of the diving personnel and simulating the diving personnel to wait at the current stay station, thereby determining the stay time of the diving personnel at the current stay station, further reducing the potential safety hazard in the diving process and enabling the diving personnel to dive safely.
Drawings
Fig. 1 is a schematic flow diagram of a submersible pressure reduction station determination method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for determining a dwell time of a submersible pressure reduction station according to one embodiment of the present application;
FIG. 3 is a schematic flow diagram of a submersible pressure reduction method according to an embodiment of the present application;
FIG. 4 is a schematic block diagram of a submersible pressure reduction station determination system according to an embodiment of the present application;
FIG. 5 is a schematic block diagram of a submersible pressure reduction system according to an embodiment of the present application;
fig. 6 is a schematic configuration diagram of a system for determining the residence time of a submersible decompression station according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that, in the present invention, the relational terms such as first and second, and the like are only used for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In a first aspect, the present embodiment provides a method for determining a diving decompression station, which includes, in conjunction with fig. 1, steps S101 to S104:
step S101: and acquiring the current diving depth, and taking the current diving depth as a first simulation depth.
Wherein, the current diving depth is the depth of the diver. In this embodiment, the current diving depth is recorded by a depth sensor on the wearable device carried by the diver, and the obtaining of the current diving depth is obtained from the current diving depth recorded by the depth sensor.
Step S102: and judging whether the preset value can divide the value corresponding to the first simulation depth.
The preset value is a numerical value corresponding to the distance between two adjacent decompression stop stations, and the unit of the distance between the two adjacent decompression stop stations is the same as the unit of the current diving depth.
Step S103: and when the preset value cannot divide the value corresponding to the first simulation depth completely, repeating the steps of simulating the rise for a designated distance and updating the first simulation depth until the preset value can divide the value corresponding to the updated first simulation depth completely.
In this example, the specified distance is 1m, and the distance between two adjacent decompression stops is 3m. For example, the depth of the current diver is 23m, when the diver is ready to ascend, the system determines the current diving depth through calculation by the method, that is, the first simulation depth cannot be divided by 3, so that the simulated diver ascends by 1m and updates the first simulation depth, and the updated first simulation depth is 22m; the system confirms that the updated first simulation depth cannot be divided by 3 through calculation, so that the simulation diver continuously ascends for 1m and updates the first simulation depth, and the updated first simulation depth is 21m; the system confirms through calculation that the first simulated depth updated again can be evenly divided by 3, and then the system takes 21m as the first target depth and performs step S104.
Step S104: and when the preset value can divide the numerical value corresponding to the first target depth, judging whether the maximum value of the theoretical tissue decompression upper limits at the first target depth is greater than the environmental absolute pressure of the first simulation stop station, and when the maximum value of the theoretical tissue decompression upper limits at the first target depth is not greater than the environmental absolute pressure of the first simulation stop station, taking the first target depth as the first stop station.
Wherein the first target depth is a first simulation depth or an updated first simulation depth. Specifically, if the determination result in the step S102 is that the preset value can divide the value corresponding to the first simulation depth, the first target depth is the first simulation depth; if the result of the determination in step S102 is that the preset value cannot be divided by the value corresponding to the first depth, the first target depth is the finally updated first depth.
Further, the first simulated stop is a position at the first target depth after the first simulated stop is raised a distance between two adjacent depressurized stops. For each theoretical tissue upper pressure limit at the first target depth, the present invention does not limit this since there may be differences in the calculated results for different pressure reduction models, in this example, the advanced buhlmann ZH-L16 model is used.
Specifically, oxygen, nitrogen and helium are the breathing gases used by the diver in this embodiment as examples. First calculate the a and b values:
P N2 and P He Respectively representing the tension of nitrogen and helium in the current theoretical organization, a N2 And b N2 Respectively representing the value of the buhlmann coefficient a and the value of the buhlmann coefficient B, a, of nitrogen corresponding to the theoretical structure He And b He Respectively, the Huhlmann of helium corresponding to the theoretical organizationThe value of the coefficient a and the value of the coefficient B of B ü hlmann.
When the inert gas is only nitrogen or helium, the above equations 1 and 2 are both true, the tension P of the gas is 0, and the values a in equation one and b in equation two are the values a and b in table 1, respectively.
Watch 1
TABLE I N in the model Buhlmann ZH-L16 2 And t of He half And a and b values.
The method of calculating the depressurization protocol in the submersible follows, where the values of a in equation 1 and b in equation 2 will be used in the following equations, in particular:
establishing a Schreiner equation:
wherein, P: calculating the pressure of the internal gas after the time t of the theoretical tissue exposure, and if the inert gas is nitrogen, the pressure is P N2 P if the inert gas is helium He ；
P i : the initial pressure of the inert gas in the theoretical tissue, i.e. the pressure of nitrogen or helium on the surface of the human body;
P alv : the pressure of the inert gas is sucked in.
P alv ＝F gas ×(P abs -P wvp ) Equation 4
Wherein, t: theoretical tissue exposure time;
k: gas decay constant of theoretical tissue;
r: inert gas rate of change;
R＝F gas ×P rate equation 6
F gas : inert gas percentage, e.g., 0.79 for nitrogen in air;
P abs : absolute pressure (bar) at the current depth;
P wvp : the steam pressure generally takes 0.0627bar;
t half : theoretical organization inert gas half saturation time (min);
P rate : rate of pressure change (bar/min); when the value is 0, the diving personnel dive at a constant depth; when the value is negative, the floating, namely rising, of the diver is represented, and the value is the negative of the rising rate; when the value is positive, the diving personnel is dived, namely is descended, and the value is a positive of the descending rate;
the Buhlmann equation was developed for calculating the upper pressure limit for any theoretical tissue as follows:
P l formula 7 of = (P-a) × b
P: the pressure of the inert gas;
P＝P N2 +P He equation 8
And (3) according to the collected current diving depth and related parameters, substituting the collected current diving depth and related parameters into formulas 1 to 8, and calculating 16 groups of theoretical tissue decompression upper limits under the current diving depth. In this way, it is likewise possible to calculate the respective upper theoretical reduction of the tissue pressure at the first target depth during the simulation, so that the maximum value thereof can be determined and compared with the absolute ambient pressure of the first simulated stop station.
All decompression stations can be listed in this example by finding the first decompression station closest to the diver and treating it as the first station, and then successively reducing its depth by 3m on the basis of the first station. Therefore, no matter the diving personnel rise from the deepest diving depth or rise to a certain distance and descend for a certain distance and then rise, the method can calculate the first stop station under the corresponding condition in real time, so that the diving personnel release the inert gas in the body through continuous rising and stopping, the formation of bubbles in the tissue is inhibited, and the incidence rate of the decompression sickness is reduced.
In an optional embodiment, the method further comprises:
when the maximum value of the upper limit of the reduced pressure of each theoretical tissue at the first target depth is greater than the absolute pressure of the environment of the first simulation stop station, simulating to increase the distance between the adjacent reduced pressure stop stations to obtain a second simulation depth;
judging whether the maximum value of the upper limit of the reduced pressure of each theoretical tissue at a second simulation depth is greater than the absolute pressure of the environment of the second simulation stop station, and if not, taking the second simulation depth as the first stop station;
the second simulated stop station is a position that is raised a distance of two adjacent reduced pressure stop stations at a second simulated depth.
In an optional embodiment, the method further comprises: and judging whether the second target depth is greater than the distance between two adjacent decompression stop stations. The determining whether the preset value can divide the value corresponding to the first simulation depth includes: and when the second target depth is greater than the distance between two adjacent decompression stop stations, judging whether the preset value can divide the value corresponding to the first simulation depth. When the second target depth is not greater than the distance between two adjacent decompression stop stations, the control system stops the acquisition of the relevant data.
Wherein the second target depth is the first simulated depth or the updated first simulated depth. Specifically, when the acquired current depth is not greater than the distance between two adjacent decompression stop stations, the second target depth is the first simulation depth; when the acquired current depth is greater than the distance between two adjacent decompression stop stations, the second target depth is the first simulated depth and the updated first simulated depth.
In a second aspect, the present embodiment provides a method for determining a dwell time of a diving decompression station, which, with reference to fig. 2, includes steps S201 to S204:
step S201: and when the simulated diver arrives at a certain stop station, acquiring the depth of the current stop station.
The current stop station is a decompression stop station simulating the current position of a diver.
Step S202: and according to the depth of the current stop station, simulating the diver to wait for a first designated time at the current stop station.
Step S203: and judging whether the diver can ascend, and if so, taking the total waiting time at the current stop station as the time for the diver to stop at the current stop station.
Step S204: and simulating waiting for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot ascend until the diver is judged to be capable of ascending, and taking the total waiting time at the current stop station as the time when the diver should stay at the current stop station.
Wherein the second designated time is less than or equal to the first designated time. The first designated time may be arbitrarily set, or may be directly set to the minimum value among the times in which the diver should stay at each decompression stop station by initial judgment. In this embodiment, the first designated time and the second designated time are both 1 minute.
Further, the judging whether the diver can ascend includes: and judging whether the upper limit of the decompression of each theoretical organization of the current diver at the current stop station is not more than the absolute pressure of the environment of the next decompression stop station, if so, judging that the diver can ascend according to the judgment result, and if not, judging that the diver cannot ascend according to the judgment result.
Specifically, for example, when the simulation operator arrives at a decompression stop station at 18m, the simulation is performed for a first specified time; after the first designated time has elapsed, re-simulating and calculating the upper limit of the reduced pressure of each theoretical tissue at that time by using formulas 1 to 8, and judging whether the pressure can rise or not; if the time cannot rise, simulating to wait for a second designated time; calculating the upper limit of the reduced pressure of each theoretical tissue at the moment, and judging whether the pressure can rise or not; if the time does not rise, simulating to wait for a second designated time; this is repeated until it is judged that the rise is possible. The simulation thus established that the diver should stay at the decompression stop station at 18m for a sum of one first specified time and two second specified times.
The method obtains the parameters required by the formulas 1 to 9 by simulating the diving state of the diver, and determines the total waiting time of the diver at the current stop station by simulating the diver to wait at the current stop station, thereby determining the time for which the diver should stop at the current stop station, further reducing the potential safety hazard in the diving process and enabling the diver to safely dive. Meanwhile, the method adopts an approximation method, overcomes the defect of no solution phenomenon in the formula 3, and further improves the safety performance of a system for executing the method.
In an optional embodiment, the method further comprises: and if the judgment result is that the diver can ascend, simulating to ascend the distance between two adjacent decompression stop stations so as to simulate the arrival at the next decompression stop station, taking the next decompression stop station as the current stop station, and executing the step of the method for determining the residence time of the diving decompression station. The method can quickly calculate the stay time of all the decompression stay stations, thereby being convenient for divers to reasonably arrange a water outlet plan according to the stay time of each decompression stay station, and further ensuring the safety of the divers.
In an optional embodiment, the method further comprises: and judging whether the depth of the current stop station is greater than zero, and if not, ending the simulation. According to the depth of the current stop station, simulating the diver to wait for a first designated time at the current stop station, comprising: and waiting for a first specified time at the current stop station when the simulation is that the depth of the current stop station is greater than zero. By judging the current staying depth, the system power consumption for calculating the corresponding staying time of each decompression staying station can be effectively reduced, and thus, the corresponding simulation calculation can be immediately finished when the simulation reaches the water surface.
In a third aspect, the present invention provides a diving decompression method, which includes, in conjunction with fig. 3, steps S301 to S302:
step S301: when the water contact sensor is in contact with water, the diving time and the current diving depth are recorded.
Step S302: and judging whether the current diving depth is larger than a specified depth, if so, calculating a decompression scheme according to the diving time and the current diving depth.
Wherein the specified depth is 1.2m in the present embodiment. Through comparing current dive degree of depth with appointed degree of depth, can judge whether dive that current diver goes on is effectual dive, dive that current diver personnel go on promptly, whether need carry out the decompression at the in-process that rises. This can avoid some unnecessary calculations, and can reduce system power consumption.
In an alternative embodiment, the submersible pressure reduction method further comprises: when the current diving depth is not larger than the designated depth, judging whether the position of the diving personnel is ascending; if not, stopping timing; if yes, continuing timing, and continuing to judge whether the current diving depth is larger than the specified depth.
Said calculating a decompression scenario from said dive time and said current dive depth comprises: performing a submersible decompression station determination method as described in any of the above and/or a submersible decompression station dwell time determination method as described in any of the above.
Specifically, when the water contact sensor contacts water, the water contact sensor is automatically activated, the system automatically starts timing, and the depth sensor starts to detect the current diving depth; when the current diving depth enters 1.2 meters and continues diving again, the system activates the diving mode, collects data through the depth sensor for 1s in real time and displays the collected data through the display module, the processor unit calculates a real-time decompression scheme according to parameters such as diving time and the current diving depth and calculates the speed for once in 2s, and alarms the overspeed condition, displays the current decompression scheme in real time, and the decompression scheme is as follows: including NO depressurization TIME (NO DEC TIME), depth of the depressurization standing station, residence TIME and remaining rise TIME of the depressurization standing station, etc., until water is discharged, the diving is ended.
In an alternative embodiment, said calculating a decompression scenario from said diving time and said current diving depth further comprises: and calculating the decompression-free time corresponding to the current decompression stop station according to the diving time and the current diving depth.
The submersible pressure reduction method further comprises: after the decompression scheme is calculated, judging whether the decompression-free time corresponding to the current decompression stop station is greater than zero or not; if yes, displaying the decompression-free time, the current diving depth and the total diving time; if not, displaying the depth of the next decompression stop station and the time required to stop at the next decompression stop station, and judging whether the current depth is less than the depth of the current decompression stop station.
Through the size of judging the decompression-free time, different contents can be displayed for the diver to check, thereby being convenient for the diver to reasonably arrange a diving plan according to the displayed contents.
And when the current depth is less than the depth of the current decompression stop station, alarming. And when the current depth is not less than the depth of the current decompression stop station, judging whether the current diving depth is greater than zero, if so, continuing to execute the step of calculating a decompression scheme according to the diving time and the current diving depth. The current decompression stop station is the decompression stop station where the diver should currently stop given in the decompression scheme. Through the judgement to exempting from decompression time and current dive degree of depth, can be not more than zero at the decompression time of exempting from that current decompression stop station corresponds, and current degree of depth is less than during the degree of depth at current decompression stop station, report to the police to can effectually remind diver to change original dive mode, with the potential safety hazard of reduction diver at dive in-process.
In an alternative embodiment, after calculating the decompression scenario, the method of diving decompression further comprises: and judging the submergence speed or the rising speed of the submerged person, and alarming when the submergence speed is greater than a first threshold value or when the rising speed is greater than a second threshold value. Can remind the diver to keep in reasonable within range at the in-process speed of dive through real time supervision diver's dive speed or rising speed like this.
In this embodiment, the submergence speed is 20m/min, and the ascent speed is 10m/min.
In a fourth aspect, based on the foregoing embodiments, the present embodiment provides a diving decompression station determination system 400, where in conjunction with fig. 4, the diving decompression station determination system 400 includes:
a first obtaining module 401, configured to obtain a current diving depth, and use the current diving depth as a first simulated depth, where the current diving depth is a depth where a diver is located;
a first judging module 402, configured to judge whether a preset value is a value corresponding to a distance between two adjacent decompression stop stations, where a unit of the distance between the adjacent decompression stop stations is the same as that of the current diving depth, and the value corresponding to the first simulation depth can be divided by the preset value;
a first analog-rising module 403, configured to, when the preset value cannot divide the value corresponding to the first analog depth by integer, repeatedly perform analog-rising for a specified distance and update the first analog depth until the preset value can divide the value corresponding to the updated first analog depth by integer;
a second judging module 404, configured to judge whether a maximum value of the theoretical tissue reduced pressure upper limits at the first target depth is greater than the absolute ambient pressure of the first simulated stopping station when the preset value is capable of dividing the value corresponding to the first target depth, and regard the first target depth as the first stopping station when the maximum value of the theoretical tissue reduced pressure upper limits at the first target depth is not greater than the absolute ambient pressure of the first simulated stopping station.
The first target depth is a first simulation depth or an updated first simulation depth; the first simulated docking station is raised to a position a given distance away at a first target depth. In this embodiment, the given distance is the distance between two adjacent decompression stops.
In an alternative embodiment, the diving decompression station determination system 400 further comprises:
a second simulated elevation module configured to simulate elevation of a distance of an adjacent reduced pressure stop station resulting in a second simulated depth when a maximum of theoretical tissue reduced pressure upper limits at the first target depth is greater than an ambient absolute pressure of the first simulated stop station;
a third determining module configured to determine whether a maximum of the theoretical tissue reduced pressure upper limits at a second simulated depth is greater than an ambient absolute pressure of a second simulated docking station, and if not, regarding the second simulated depth as a first docking station;
the second simulated stop is a position raised a distance of two adjacent depressurized stops at a second simulated depth.
In an alternative embodiment, the diving pressure reduction station determination system 400 further comprises:
a fourth judging module configured to judge whether the second target depth is greater than the distance between two adjacent decompression stop stations;
the first judgment module is further configured to judge whether a preset value can divide a numerical value corresponding to the first simulation depth when the second target depth is greater than the distance between two adjacent decompression stop stations;
the second target depth is the first simulated depth or the updated first simulated depth.
In a fifth aspect, the present embodiment provides a diving decompression system 500, and in conjunction with fig. 5, the diving decompression system 500 includes:
a recording module 501 configured to start recording the diving time and the current diving depth when the water contact sensor is contacted with water;
a fifth determining module 502 configured to determine whether the current diving depth is greater than a specified depth;
a calculation module 503 configured to calculate a decompression scenario from the diving time and the current diving depth when the current diving depth is greater than a specified depth;
the calculation module 503 is further configured to perform the diving decompression station determination method and/or the diving decompression station dwell time determination method as described in any of the above.
In an optional embodiment, the calculating module 503 is further configured to calculate, according to the diving time and the current diving depth, a decompression-free time corresponding to a current decompression stop station;
the submersible pressure reduction system 500 further comprises:
the sixth judgment module is also configured to judge whether the decompression-free time corresponding to the current decompression stop station is greater than zero;
the seventh judging module is configured to judge whether the current depth is smaller than the depth of the current decompression stop station or not when the decompression-free time corresponding to the current decompression stop station is not larger than zero;
an alert module configured to alert when a current depth is less than a depth of the current reduced pressure stop station;
an eighth judging module, configured to judge whether the current diving depth is greater than zero when the current depth is not less than the depth of the current decompression stop station;
a control execution module configured to execute the calculation module when a current diving depth is greater than zero;
the current decompression stop station is the decompression stop station where the diver should currently stop given in the decompression scheme.
In an alternative embodiment, the submersible pressure reduction system 500 further comprises:
a ninth determination module configured to determine whether the position of the diver is ascending when the current diving depth is not greater than a specified depth;
a stopping module configured to stop timing when the position of the diver is ascending.
In a sixth aspect, the present embodiment provides a system 600 for determining a residence time of a diving decompression station, where in conjunction with fig. 6, the system 600 for determining a residence time of a diving decompression station includes:
a second obtaining module 601, configured to obtain a depth of a current stop station, where the current stop station is a decompression stop station where a simulated diver is currently located;
a first simulation module 602, configured to simulate a diver to wait for a first specified time at a current stop station according to the depth of the current stop station;
a tenth determining module 603, configured to obtain a total time for determining whether the diver can ascend, and if so, taking the total time waiting at the current stop station as the time that the diver should stop at the current stop station;
a second simulation module 604, configured to simulate waiting for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver is judged not to be able to ascend, until the diver is judged to be able to ascend, and take the total time of waiting at the current stop station as the time when the diver should stay at the current stop station;
the tenth determining module 603 is further configured to determine whether each theoretical tissue decompression upper limit of the current diver at the current station is not greater than an environmental absolute pressure of the next decompression station, if so, the diver can ascend according to the determination result, and if not, the diver cannot ascend according to the determination result.
In an alternative embodiment, the system 600 for determining the residence time of the diving decompression station further comprises:
and the third simulation module is configured to simulate the distance between two adjacent decompression stop stations to reach the next decompression stop station when the diving personnel can ascend according to the judgment result, and execute the step of the diving decompression station residence time determination system by taking the next decompression stop station as the current stop station.
In an alternative embodiment, the system 600 for determining the residence time of the diving decompression station further comprises:
the eleventh judging module is configured to judge whether the depth of the current stop station is greater than zero, and if not, the simulation is ended;
the first simulation module is further configured to wait a first specified time at the current docking station when the simulation is at a depth greater than zero at the current docking station.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A method for determining a dwell time of a submersible pressure reduction station, comprising:
acquiring the depth of a current stop station, wherein the current stop station is a decompression stop station for simulating the current location of a diver;
simulating a diver to wait for a first designated time at the current stop station according to the depth of the current stop station;
judging whether the diver can ascend, if so, taking the total waiting time at the current stop station as the time for the diver to stop at the current stop station;
simulating to wait for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot rise until the diver can rise, and taking the total waiting time at the current stop station as the time for the diver to stay at the current stop station;
wherein, whether judgement diver can rise includes: and judging whether the upper limit of the pressure reduction of each theoretical organization of the current diver at the current stop station is not more than the absolute pressure of the environment of the next pressure reduction stop station, if so, judging that the diver can ascend, and if not, judging that the diver cannot ascend.
2. The method of determining a submersible pressure reduction station dwell time as recited in claim 1, further comprising:
and if the judgment result is that the diver can ascend, simulating the ascending of the distance between two adjacent decompression stop stations so as to simulate the arrival at the next decompression stop station, taking the next decompression stop station as the current stop station, and executing the step of the method for determining the residence time of the diving decompression station, which is disclosed by the claim 1.
3. The method of determining a diving decompression station dwell time according to claim 1, further comprising:
judging whether the depth of the current stop station is greater than zero, if not, ending the simulation;
according to the depth of the current stop station, simulating the diver to wait for a first designated time at the current stop station, comprising: and waiting for a first specified time at the current stop station when the simulation is that the depth of the current stop station is greater than zero.
4. A submersible pressure reduction method, comprising:
when the water contact sensor contacts water, starting to record diving time and current diving depth;
judging whether the current diving depth is larger than a specified depth, if so, calculating a decompression scheme according to the diving time and the current diving depth;
said calculating a decompression scenario from said dive time and said current dive depth comprises: a method of determining a submersible pressure reduction station dwell time as claimed in any one of claims 1 to 3.
5. The method of diving decompression according to claim 4, wherein said calculating a decompression scenario from said diving time and said current diving depth further comprises:
according to the diving time and the current diving depth, calculating the decompression-free time corresponding to the current decompression stop station;
the submersible pressure reduction method further comprises:
judging whether the decompression-free time corresponding to the current decompression stop station is greater than zero, and if not, judging whether the current depth is less than the depth of the current decompression stop station;
when the current depth is smaller than the depth of the current decompression stop station, alarming;
when the current depth is not less than the depth of the current decompression stop station, judging whether the current diving depth is greater than zero, if so, continuing to execute the step of calculating a decompression scheme according to the diving time and the current diving depth;
the current decompression stop station is the decompression stop station where the diver should stop currently given in the decompression scheme.
6. The submersible pressure reduction method of claim 4, further comprising:
and when the current diving depth is not greater than the designated depth, judging whether the position of the diving personnel is ascending, if so, stopping timing.
7. A system for determining dwell time of a submersible pressure reduction station, comprising:
the second acquisition module is configured to acquire the depth of a current stop station, wherein the current stop station is a decompression stop station where a simulated diver is currently located;
the first simulation module is configured to simulate a diver to wait for a first specified time at the current stop station according to the depth of the current stop station;
the first judgment module is configured to obtain and judge whether the diver can ascend, and if so, the total waiting time at the current stop station is taken as the time for the diver to stop at the current stop station;
the second simulation module is configured to simulate waiting for a second designated time at the current stop station or repeatedly waiting for the second designated time when the diver cannot ascend, until the diver can ascend, and take the total waiting time at the current stop station as the time for which the diver should stay at the current stop station;
the first judgment module is further configured to judge whether the upper limit of the decompression of each theoretical organization of the current diver at the current stop station is not more than the absolute pressure of the environment of the next decompression stop station, if so, the judgment result is that the diver can ascend, and if not, the judgment result is that the diver cannot ascend.
8. The system for determining a submersible pressure reduction station dwell time of claim 7, further comprising:
a third simulation module configured to simulate, when the determination result is that the diver can ascend, ascending the distance between two adjacent decompression stops to simulate reaching a next decompression stop, and performing the step of the system for determining the residence time of the diving decompression station as claimed in claim 1 with the next decompression stop as the current stop.
9. The system for determining a submersible pressure reduction station dwell time of claim 7, further comprising:
the second judgment module is configured to judge whether the depth of the current stop station is larger than zero, and if not, the simulation is ended;
the first simulation module is further configured to wait a first specified time at the current docking station when the simulation is at a depth greater than zero at the current docking station.
10. A submersible pressure reduction system, comprising:
a recording module configured to start recording the diving time and the current diving depth when the water contact sensor contacts water;
a third determining module configured to determine whether the current diving depth is greater than a specified depth;
a calculation module configured to calculate a decompression scenario from the diving time and the current diving depth when the current diving depth is greater than a specified depth;
the calculation module further configured to perform a method of determining a submersible pressure reduction station dwell time as claimed in any one of claims 1 to 3.
11. The system of claim 10, wherein the calculation module is further configured to calculate a decompression-free time corresponding to a current decompression stop station according to the diving time and the current diving depth;
the submersible pressure reduction system further comprises:
the fourth judgment module is configured to judge whether the decompression-free time corresponding to the current decompression stop station is greater than zero or not;
the fifth judgment module is configured to judge whether the current depth is smaller than the depth of the current decompression stop station or not when the decompression-free time corresponding to the current decompression stop station is not larger than zero;
an alert module configured to alert when a current depth is less than a depth of the current reduced pressure stop station;
a sixth judging module configured to judge whether the current diving depth is greater than zero when the current depth is not less than the depth of the current decompression stop station;
a control execution module configured to execute the calculation module when a current diving depth is greater than zero;
the current decompression stop station is the decompression stop station where the diver should stop currently given in the decompression scheme.
12. The submersible pressure reduction system of claim 10, further comprising:
a seventh judging module configured to judge whether the position of the diver is ascending when the current diving depth is not greater than a specified depth;
a stopping module configured to stop timing when the position of the diver is ascending.
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