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view Small_CPU/Inc/vpm.h @ 747:df0d43da1614
Added pressure compensation to CO2 detection:
A pressure compensation is needed if the ExplorIR shall be used under extended pressure conditions. The procedure recommended by the application note has been integrated. To keep things simple the focus of the CO2 measurement is not the precision, as it is needed for the decompression calculation, but the indication of a critical increase of CO2 in the breathing loop. That's why only a lookup table with 1000ppm steps has been implemented instead of calculating the polynom for every measurement.
author | Ideenmodellierer |
---|---|
date | Sun, 05 Mar 2023 22:06:47 +0100 |
parents | 5f11787b4f42 |
children |
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/* * vpm.h * * Created: 23.04.2013 11:38:19 * Author: produktion04 */ #ifndef VPM_H #define VPM_H #include "data_central.h" extern long vpm_time_calc_begin; enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS,NULLZEIT,OFF = -1}; // order is important!! enum VPM_CALC_STATUS{CALC_END, CALC_BEGIN, CALC_CRITICAL, CALC_FINAL_DECO, CALC_NULLZEIT }; //int calc_crushing_pressure(float *starting_depth, float *ending_depth, float *rate); //void vpm_check_calc(unsigned short* stoplist); //void vpm_init(void); //_Bool vpm_crush(void); void vpm_reset_variables(void); _Bool vpm_build_variables_from_file(unsigned long in_sdram_start); int vpm_store_variables_in_sdram_for_transfer(unsigned long in_sdram_start); void vpm_calc_crushing_pressure(float starting_ambient_pressure, float ending_ambient_pressure, float rate); void vpm_deco_plan(unsigned short divetime,unsigned short * divetime_first_stop, float* first_stop_depth); float schreiner_equation__2(float *initial_inspired_gas_pressure,float *rate_change_insp_gas_pressure,float *interval_time_minutes, const float *gas_time_constant,float *initial_gas_pressure); int vpm_calc(SLifeData* pINPUT, SVpm* pVPM, SDecoinfo* pDECOINFO); void vpm_saturation_after_ascent(SLifeData* input); extern const float helium_time_constant[16]; extern const float nitrogen_time_constant[16]; #endif /* VPM_H */