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Buelmann: new implementation for ceiling Since my first functional fix in the ceiling computation in commit ceecabfddb57, I noticed that the computation used a linear search, that became rather computational expensive after that commit. The simple question is: why not a binary search? So, this commit implements the binary search. But there is a long story attached to this. Comparing ceiling results from hwOS and this OSTC4 code were very different. Basically, the original OSTC4 algorithm computed the ceiling using the same GFlow to GFhigh slope, in such a way, that the ceiling was in sync with the presented deco stops, where the hwOS code presents a GFhigh based ceiling. This said, it is more logical when the OSTC4 and hwOS code give similar results. This new recursive algorithm gives very similar results for the ceiling compared to hwOS. To be complete here, the Buelmann ceiling is the depth to which you can ascend, so that the leading tissue reaches GFhigh. This also explains why the deepest deco stop is normally deeper than the ceiling (unless one dives with GF like 80/80). The code implemented here is rather straightforward recursion. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 11 Apr 2019 17:48:48 +0200
parents 2bb1db22b5f5
children 55a9aa740f13
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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Inc/simulation.h
/// \brief
/// \author Heinrichs Weikamp
/// \date   2018
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
///
///     This program is free software: you can redistribute it and/or modify
///     it under the terms of the GNU General Public License as published by
///     the Free Software Foundation, either version 3 of the License, or
///     (at your option) any later version.
///
///     This program is distributed in the hope that it will be useful,
///     but WITHOUT ANY WARRANTY; without even the implied warranty of
///     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
///     GNU General Public License for more details.
///
///     You should have received a copy of the GNU General Public License
///     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//////////////////////////////////////////////////////////////////////////////

#ifndef SIMULATION_H
#define SIMULATION_H

#include "stm32f4xx_hal.h"
#include "data_central.h"

typedef struct
{
    uint8_t depthMeterFirstStop;
    uint8_t descentRateMeterPerMinute;
    uint8_t ascentRateMeterPerMinute;
    uint16_t timeToBottom;
    uint16_t timeAtBottom;
    uint16_t timeToFirstStop;
    uint16_t timeToSurface;
    float	ppO2AtBottom;
} SSimDataSummary;

void simulation_start(int aim_depth);
void simulation_exit(void);

void simulation_set_heed_decostops(_Bool heed_decostops_while_ascending);

void simulation_UpdateLifeData( _Bool checkOncePerSecond);
void simulation_set_zero_time_descent(void);

uint16_t simulation_get_aim_depth(void);
_Bool simulation_get_heed_decostops(void);
SDecoinfo* simulation_decoplaner(uint16_t depth_meter, uint16_t intervall_time_minutes, uint16_t dive_time_minutes, uint8_t *gasChangeListDepthGas20x2);
SDecoinfo* simulation_decoplaner_Bachelorarbeit_VPM(uint16_t depth_meter, uint16_t intervall_time_minutes, uint16_t dive_time_minutes, uint8_t *gasChangeListDepthGas20x2);
void simulation_gas_consumption(uint16_t *outputConsumptionList, uint16_t depth_meter, uint16_t dive_time_minutes, SDecoinfo *decoInfoInput, uint8_t gasConsumTravelInput, uint8_t gasConsumDecoInput, const uint8_t *gasChangeListDepthGas20x2);
void simulation_helper_change_points(SSimDataSummary *outputSummary, uint16_t depth_meter, uint16_t dive_time_minutes, SDecoinfo *decoInfoInput, const uint8_t *gasChangeListDepthGas20x2);


void Sim_Descend (void);
void Sim_Ascend (void);
void Sim_Divetime (void);
void Sim_Quit (void);


#endif /* SIMULATION_H */