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view Discovery/Src/check_warning.c @ 322:31e471d60797 O2_SensorSync

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Added start of frame detection for HUD data In the previous impmenentation the reception and evaluation of 15 byte were used without start detection. As a result sensor data could be stuck in case the frame sequence does not match the structure (e.g. cause by an framing error). To resolve this in case of an invalid checksumme in combination with a data lost detection a byte based reception is startet to detect the start of a frame using the break between two transmissions. In addition a babbling idiot protecting has been added because a faulty hardware could have an impact on the OSTC operation (high interrupt load)
author ideenmodellierer
date Sun, 30 Jun 2019 21:25:58 +0200
parents 74a8296a2318
children 58200d756365
line wrap: on
line source

/**
  ******************************************************************************
  * @file    check_warning.c
  * @author  heinrichs weikamp gmbh
  * @date    17-Nov-2014
  * @version V0.0.1
  * @since   17-Nov-2014
  * @brief   check and set warnings for warnings
  *
  @verbatim
  ==============================================================================
              ##### How to use #####
  ==============================================================================
  OSTC3 Warnings:
		niedriger Batteriezustand (
		zu hoher oder zu niedriger Sauerstoffpartialdruck (ppO2) 0.2 - 1.6
		zu hoher CNS (Gefahr der Sauerstoffvergiftung) 90%
		zu hohe Gradientenfaktoren 90 - 90
		Missachtung der Dekostopps (der �berschrittene Dekostopp wird rot angezeigt) 0 m
		zu hohe Aufstiegsgeschwindigkeit 30 m/min
		aGF-Warnung: die Berechnung der Dekompression wird �ber alternative GF-Werte durchgef�hrt
		Fallback-Warnung bei ausgefallenem Sensor

	@endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/

#include "data_exchange.h"
#include "check_warning.h"
#include "settings.h"
#include "decom.h"
#include "tCCR.h"

/* Private variables with access ----------------------------------------------*/
static uint8_t betterGasId = 0;
static uint8_t betterSetpointId = 0;
static int8_t fallback = 0;

/* Private function prototypes -----------------------------------------------*/
static int8_t check_fallback(SDiveState * pDiveState);
static int8_t check_ppO2(SDiveState * pDiveState);
static int8_t check_O2_sensors(SDiveState * pDiveState);
static int8_t check_CNS(SDiveState * pDiveState);
static int8_t check_Deco(SDiveState * pDiveState);
static int8_t check_AscentRate(SDiveState * pDiveState);
static int8_t check_aGF(SDiveState * pDiveState);
static int8_t check_BetterGas(SDiveState * pDiveState);
static int8_t check_BetterSetpoint(SDiveState * pDiveState);
static int8_t check_Battery(SDiveState * pDiveState);

static int8_t check_helper_same_oxygen_and_helium_content(SGasLine * gas1, SGasLine * gas2);

/* Exported functions --------------------------------------------------------*/

void check_warning(void)
{
  check_warning2(stateUsedWrite);
}


void check_warning2(SDiveState * pDiveState)
{
  pDiveState->warnings.numWarnings = 0;

	pDiveState->warnings.numWarnings += check_aGF(pDiveState);
	pDiveState->warnings.numWarnings += check_AscentRate(pDiveState);
	pDiveState->warnings.numWarnings += check_CNS(pDiveState);
	pDiveState->warnings.numWarnings += check_Deco(pDiveState);
	pDiveState->warnings.numWarnings += check_ppO2(pDiveState);
	pDiveState->warnings.numWarnings += check_O2_sensors(pDiveState);
	pDiveState->warnings.numWarnings += check_BetterGas(pDiveState);
	pDiveState->warnings.numWarnings += check_BetterSetpoint(pDiveState);
	pDiveState->warnings.numWarnings += check_Battery(pDiveState);
	pDiveState->warnings.numWarnings += check_fallback(pDiveState);
}


void set_warning_fallback(void)
{
	fallback = 1;
}


void clear_warning_fallback(void)
{
	fallback = 0;
}


uint8_t actualBetterGasId(void)
{
	return betterGasId;
}


uint8_t actualBetterSetpointId(void)
{
	return betterSetpointId;
}


uint8_t actualLeftMaxDepth(const SDiveState * pDiveState)
{
	if(pDiveState->lifeData.depth_meter > (pDiveState->lifeData.max_depth_meter - 3.0f))
		return 0;
	else
		return 1;
}


/* Private functions ---------------------------------------------------------*/
static int8_t check_fallback(SDiveState * pDiveState)
{
	if(fallback && ((pDiveState->mode != MODE_DIVE) || (pDiveState->diveSettings.diveMode != DIVEMODE_CCR)))
		fallback = 0;
	
	pDiveState->warnings.fallback = fallback;
	return pDiveState->warnings.fallback;
}


static int8_t check_ppO2(SDiveState * pDiveState)
{
	if(pDiveState->mode != MODE_DIVE)
	{
		pDiveState->warnings.ppO2Low = 0;
		pDiveState->warnings.ppO2High = 0;
		return 0;
	}

	uint8_t localPPO2, testPPO2high;

	if(pDiveState->lifeData.ppO2 < 0)
		localPPO2 = 0;
	else
	if(pDiveState->lifeData.ppO2 >= 2.5f)
		localPPO2 = 255;
	else
	localPPO2 = (uint8_t)(pDiveState->lifeData.ppO2 * 100);

	if((localPPO2 + 1) <= settingsGetPointer()->ppO2_min)
			pDiveState->warnings.ppO2Low = 1;
	else
			pDiveState->warnings.ppO2Low = 0;
	
	if(actualLeftMaxDepth(pDiveState))
		testPPO2high = settingsGetPointer()->ppO2_max_deco;
	else
		testPPO2high = settingsGetPointer()->ppO2_max_std;

	if(localPPO2 >= (testPPO2high + 1))
			pDiveState->warnings.ppO2High = 1;
	else
			pDiveState->warnings.ppO2High = 0;

	return pDiveState->warnings.ppO2Low + pDiveState->warnings.ppO2High;
}


static int8_t check_O2_sensors(SDiveState * pDiveState)
{
	pDiveState->warnings.sensorLinkLost = 0;
	pDiveState->warnings.sensorOutOfBounds[0] = 0;
	pDiveState->warnings.sensorOutOfBounds[1] = 0;
	pDiveState->warnings.sensorOutOfBounds[2] = 0;

	if((pDiveState->diveSettings.diveMode == DIVEMODE_CCR) && (pDiveState->diveSettings.CCR_Mode == CCRMODE_Sensors))
	{
		if(!get_HUD_battery_voltage_V())
			pDiveState->warnings.sensorLinkLost = 1;
		
		test_HUD_sensor_values_outOfBounds(&pDiveState->warnings.sensorOutOfBounds[0], &pDiveState->warnings.sensorOutOfBounds[1], &pDiveState->warnings.sensorOutOfBounds[2]);
		
	}
	return 		pDiveState->warnings.sensorLinkLost
					+ pDiveState->warnings.sensorOutOfBounds[0]
					+ pDiveState->warnings.sensorOutOfBounds[1]
					+ pDiveState->warnings.sensorOutOfBounds[2];
}


static int8_t check_BetterGas(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.betterGas = 0;
		betterGasId = 0;
		return 0;
	}

	uint8_t  gasIdOffset;
	uint8_t bestGasDepth, betterGasIdLocal;

  SLifeData* pLifeData = &pDiveState->lifeData;
  SDiveSettings* pDiveSettings = &pDiveState->diveSettings;

  pDiveState->warnings.betterGas = 0;
	betterGasId = 0;
	betterGasIdLocal = pLifeData->actualGas.GasIdInSettings;
	bestGasDepth = 255;

	if(pDiveSettings->diveMode == DIVEMODE_CCR)
		gasIdOffset = NUM_OFFSET_DILUENT;
	else
		gasIdOffset = 0;

	/* life data is float, gas data is uint8 */
	if(actualLeftMaxDepth(pDiveState)) /* deco gases */
	{
		for(int i=1+gasIdOffset; i<= 5+gasIdOffset; i++)
		{
			if(	 (pDiveSettings->gas[i].note.ub.active)
				&& (pDiveSettings->gas[i].note.ub.deco)
				&& (pDiveSettings->gas[i].depth_meter)
				&& (pDiveSettings->gas[i].depth_meter >= (pLifeData->depth_meter - 0.01f ))
				&& (pDiveSettings->gas[i].depth_meter <= bestGasDepth)
				)
				{
					betterGasIdLocal = i;
					bestGasDepth = pDiveSettings->gas[i].depth_meter;
				}
		}

		if(betterGasIdLocal != pLifeData->actualGas.GasIdInSettings)
		{
			if(!check_helper_same_oxygen_and_helium_content(&pDiveSettings->gas[betterGasIdLocal], &pDiveSettings->gas[pLifeData->actualGas.GasIdInSettings]))
			{
				betterGasId = betterGasIdLocal;
				pDiveState->warnings.betterGas = 1;
			}
		}
	}
	else /* travel gases */
	{
	  bestGasDepth = 0;
	  //check for travalgas
	  for(int i=1+gasIdOffset; i<= 5+gasIdOffset; i++)
    {
      if(	 (pDiveSettings->gas[i].note.ub.active)
        && (pDiveSettings->gas[i].note.ub.travel)
        && (pDiveSettings->gas[i].depth_meter_travel)
        && (pDiveSettings->gas[i].depth_meter_travel <= (pLifeData->depth_meter + 0.01f ))
        && (pDiveSettings->gas[i].depth_meter_travel >= bestGasDepth)
        )
        {
          betterGasIdLocal = i;
          bestGasDepth = pDiveSettings->gas[i].depth_meter;
        }
    }

    if(betterGasIdLocal != pLifeData->actualGas.GasIdInSettings)
    {
			if(!check_helper_same_oxygen_and_helium_content(&pDiveSettings->gas[betterGasIdLocal], &pDiveSettings->gas[pLifeData->actualGas.GasIdInSettings]))
			{
				betterGasId = betterGasIdLocal;
				pDiveState->warnings.betterGas = 1;
			}
    }
	}
	return pDiveState->warnings.betterGas;
}

/* check for better travel!!! setpoint hw 151210
 */ 
static int8_t check_BetterSetpoint(SDiveState * pDiveState)
{
	pDiveState->warnings.betterSetpoint = 0;
	betterSetpointId = 0;

	if((stateUsed->mode != MODE_DIVE) || (pDiveState->diveSettings.diveMode != DIVEMODE_CCR) || (pDiveState->diveSettings.CCR_Mode != CCRMODE_FixedSetpoint))
	{
		return 0;
	}
	
	uint8_t bestSetpointDepth = 0; // travel the deeper, the better
	uint8_t betterSetpointIdLocal = 0; // nothing better

	if(!actualLeftMaxDepth(pDiveState)) /* travel gases */
	{
		for(int i=1; i<=NUM_GASES; i++)
		{
			if(	 (pDiveState->diveSettings.setpoint[i].note.ub.active)
				&& (pDiveState->diveSettings.setpoint[i].depth_meter)
				&& (pDiveState->diveSettings.setpoint[i].depth_meter <= ( pDiveState->lifeData.depth_meter + 0.01f ))
				&& (pDiveState->diveSettings.setpoint[i].depth_meter >= bestSetpointDepth)
			)
				{
					betterSetpointIdLocal = i;
					bestSetpointDepth = pDiveState->diveSettings.setpoint[i].depth_meter;
				}
		}
		if((betterSetpointIdLocal) && (pDiveState->diveSettings.setpoint[betterSetpointIdLocal].setpoint_cbar  != pDiveState->lifeData.actualGas.setPoint_cbar))
		{
			betterSetpointId = betterSetpointIdLocal;
			pDiveState->warnings.betterSetpoint = 1;
		}
	}
	return pDiveState->warnings.betterSetpoint;
}


/* hw 151030
 */
static int8_t check_helper_same_oxygen_and_helium_content(SGasLine * gas1, SGasLine * gas2)
{
	if(gas1->helium_percentage != gas2->helium_percentage)
		return 0;
	else
	if(gas1->oxygen_percentage != gas2->oxygen_percentage)
		return 0;
	else
		return 1;
}


static int8_t check_CNS(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.cnsHigh = 0;
		return 0;
	}
	
	if(pDiveState->lifeData.cns >= (float)(settingsGetPointer()->CNS_max))
			pDiveState->warnings.cnsHigh = 1;
	else
			pDiveState->warnings.cnsHigh = 0;
	return pDiveState->warnings.cnsHigh;
}


static int8_t check_Battery(SDiveState * pDiveState)
{
	if(pDiveState->lifeData.battery_charge < 10)
		pDiveState->warnings.lowBattery = 1;
	else
		pDiveState->warnings.lowBattery = 0;
	
  return pDiveState->warnings.lowBattery;
}


static int8_t check_Deco(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.decoMissed = 0;
		return 0;
	}

	uint8_t depthNext = decom_get_actual_deco_stop(pDiveState);
	
	if(!depthNext)
      pDiveState->warnings.decoMissed = 0;
	else
  if(pDiveState->lifeData.depth_meter + 0.1f < (float)depthNext)
      pDiveState->warnings.decoMissed = 1;
  else
      pDiveState->warnings.decoMissed = 0;
	
  return pDiveState->warnings.decoMissed;
}


static int8_t check_AscentRate(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.ascentRateHigh = 0;
		return 0;
	}

	float warnAscentRateFloat;

	warnAscentRateFloat = (float)(settingsGetPointer()->ascent_MeterPerMinute_max);

	if(pDiveState->lifeData.ascent_rate_meter_per_min >= warnAscentRateFloat)
			pDiveState->warnings.ascentRateHigh = 1;
	else
			pDiveState->warnings.ascentRateHigh = 0;
	return pDiveState->warnings.ascentRateHigh;
}


static int8_t check_aGF(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.aGf = 0;
		return 0;
	}

  pDiveState->warnings.aGf = 0;
  if(pDiveState->diveSettings.deco_type.ub.standard == GF_MODE)
  {
    if((pDiveState->diveSettings.gf_high != settingsGetPointer()->GF_high) || (pDiveState->diveSettings.gf_low != settingsGetPointer()->GF_low))
      pDiveState->warnings.aGf = 1;
  }
  return pDiveState->warnings.aGf;
}

/************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/