Mercurial > public > ostc4
annotate Discovery/Src/timer.c @ 335:c11ce8c885d3 PressureMeasure_Improvment
Use average calculation for pressure: precondition was that pressure values jittered +- 10 HPa from one capture (once a second) to the other. Basically pressure is measured several times a second => using these values in an additional history calculation reduces the jitter down to +-1 per second
Additionaly a similar function has been added to the surface pressure capture to further reduce the jitter in long therm measurements (once a minute)
| author | ideenmodellierer |
|---|---|
| date | Tue, 13 Aug 2019 21:46:26 +0200 |
| parents | ddbe8bed5096 |
| children | 2c49561c8062 |
| rev | line source |
|---|---|
| 38 | 1 /////////////////////////////////////////////////////////////////////////////// |
| 2 /// -*- coding: UTF-8 -*- | |
| 3 /// | |
| 4 /// \file Discovery/Src/timer.c | |
| 5 /// \brief Contains timer related functionality like stopwatch and security stop | |
| 6 /// \author Peter Ryser & heinrichs weikamp gmbh | |
| 7 /// \date 5. Feb.2015 (maybe) | |
| 8 /// | |
| 9 /// \details | |
| 10 /// | |
| 11 /// $Id$ | |
| 12 /////////////////////////////////////////////////////////////////////////////// | |
| 13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh | |
| 14 /// | |
| 15 /// This program is free software: you can redistribute it and/or modify | |
| 16 /// it under the terms of the GNU General Public License as published by | |
| 17 /// the Free Software Foundation, either version 3 of the License, or | |
| 18 /// (at your option) any later version. | |
| 19 /// | |
| 20 /// This program is distributed in the hope that it will be useful, | |
| 21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 23 /// GNU General Public License for more details. | |
| 24 /// | |
| 25 /// You should have received a copy of the GNU General Public License | |
| 26 /// along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 27 ////////////////////////////////////////////////////////////////////////////// | |
| 28 | |
| 29 #include "data_central.h" | |
| 30 | |
|
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31 static _Bool bStopWatch = false; |
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32 static float stopWatchAverageDepth_Meter = 0.0f; |
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33 static long safetyStopCountDown_Second = 0; |
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34 static long stopWatchOffset = 0; |
| 38 | 35 |
| 36 void timer_init(void) | |
| 37 { | |
| 38 stopWatchAverageDepth_Meter = 0.0f; | |
| 39 bStopWatch = true; | |
| 40 safetyStopCountDown_Second = 0; | |
|
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41 stopWatchOffset = 0; |
| 38 | 42 } |
| 43 | |
| 44 void timer_UpdateSecond(_Bool checkOncePerSecond) | |
| 45 { | |
| 46 static int last_second = -1; | |
| 47 static _Bool bSafetyStop = false; | |
| 48 static float last_depth_meter = 0; | |
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49 long stopWatchTime_Second = 0; |
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50 |
| 38 | 51 if(checkOncePerSecond) |
| 52 { | |
| 53 int now = current_second(); | |
| 54 if( last_second == now) | |
| 55 return; | |
| 56 last_second = now; | |
| 57 } | |
| 58 | |
| 59 /** Stopwatch **/ | |
|
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parents:
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60 stopWatchTime_Second = stateUsed->lifeData.dive_time_seconds_without_surface_time - stopWatchOffset; |
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61 if(bStopWatch && !is_ambient_pressure_close_to_surface(&stateUsedWrite->lifeData)) |
| 38 | 62 { |
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63 if(stopWatchTime_Second == 0) |
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64 stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter; |
| 38 | 65 else |
| 66 stopWatchAverageDepth_Meter = (stopWatchAverageDepth_Meter * stopWatchTime_Second + stateUsed->lifeData.depth_meter)/ (stopWatchTime_Second + 1); | |
| 67 } | |
| 68 | |
| 69 /** SafetyStop **/ | |
| 70 float depthToStopSafetyStopCount; | |
| 71 if(settingsGetPointer()->safetystopDuration && (stateUsed->lifeData.max_depth_meter > 10.0f) && (stateUsed->lifeData.dive_time_seconds > 60)) | |
| 72 { | |
| 73 | |
| 74 //No deco when 10 meters are crossed from below => Activate SecurityStop | |
| 75 if( last_depth_meter > 10.0f && stateUsed->lifeData.depth_meter <= 10.0f) | |
| 76 { | |
| 77 if(stateUsed->diveSettings.deco_type.ub.standard == GF_MODE) | |
| 78 { | |
| 79 if(stateUsed->decolistBuehlmann.output_ndl_seconds > 0) | |
| 80 bSafetyStop = true; | |
| 81 } | |
| 82 else | |
| 83 { | |
| 84 if(stateUsed->decolistVPM.output_ndl_seconds > 0) | |
| 85 bSafetyStop = true; | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 //Countdown starts at 5 meters | |
| 90 if(bSafetyStop && (stateUsed->lifeData.depth_meter - 0.0001f <= (settingsGetPointer()->safetystopDepth) )) | |
| 91 { | |
| 92 if(safetyStopCountDown_Second == 0) | |
| 93 { | |
| 94 safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60; | |
| 95 } | |
| 96 else | |
| 97 safetyStopCountDown_Second--; | |
| 98 } | |
| 99 | |
| 100 // after safetystopDuration minutes or below 3 (2) meter safetyStop is disabled | |
| 101 if(settingsGetPointer()->safetystopDepth == 3) | |
| 102 depthToStopSafetyStopCount = 1.999f; // instead of 2 | |
| 103 else | |
| 104 depthToStopSafetyStopCount = 2.999f;// instead of 3 | |
| 105 | |
| 106 if((safetyStopCountDown_Second == 1) || (stateUsed->lifeData.depth_meter <= depthToStopSafetyStopCount)) | |
| 107 { | |
| 108 bSafetyStop = false; | |
| 109 safetyStopCountDown_Second = 0; | |
| 110 } | |
| 111 } | |
| 112 else | |
| 113 { | |
| 114 bSafetyStop = false; | |
| 115 safetyStopCountDown_Second = 0; | |
| 116 } | |
| 117 last_depth_meter = stateUsed->lifeData.depth_meter; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 void timer_Stopwatch_Restart(void) | |
| 122 { | |
| 123 stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter; | |
| 124 bStopWatch = true; | |
|
311
ddbe8bed5096
bugfix: make stopwatch and divetime run in sync
Jan Mulder <jlmulder@xs4all.nl>
parents:
303
diff
changeset
|
125 stopWatchOffset = stateUsed->lifeData.dive_time_seconds_without_surface_time; |
| 38 | 126 } |
| 127 | |
| 128 void timer_Stopwatch_Stop(void) | |
| 129 { | |
| 130 bStopWatch = false; | |
| 131 } | |
| 132 | |
| 133 long timer_Stopwatch_GetTime(void) | |
| 134 { | |
|
311
ddbe8bed5096
bugfix: make stopwatch and divetime run in sync
Jan Mulder <jlmulder@xs4all.nl>
parents:
303
diff
changeset
|
135 return stateUsed->lifeData.dive_time_seconds_without_surface_time - stopWatchOffset; |
| 38 | 136 } |
| 137 | |
| 138 float timer_Stopwatch_GetAvarageDepth_Meter(void) | |
| 139 { | |
| 140 return stopWatchAverageDepth_Meter; | |
| 141 } | |
| 142 | |
| 143 long timer_Safetystop_GetCountDown(void) | |
| 144 { | |
| 145 return safetyStopCountDown_Second; | |
| 146 } | |
| 147 | |
| 148 uint8_t timer_Safetystop_GetDepthUpperLimit(void) | |
| 149 { | |
| 150 if(settingsGetPointer()->safetystopDepth == 3) | |
| 151 return 2; | |
| 152 else | |
| 153 return 3; | |
| 154 } | |
| 155 |