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par

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This commit is contained in:
Anton Viktorov 2024-03-22 20:06:36 +01:00
parent e4e4a7aeef
commit 4994c4b39c
2 changed files with 27 additions and 21 deletions
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34
esphome/components/as7343/as7343.cpp
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@ -241,12 +241,12 @@ void AS7343Component::calculate_and_publish() {
float irradiance; float irradiance;
float irradiance_photopic; float irradiance_photopic;
float lux; float lux;
float ppfd; float ppfd, par;
float cct, duv, lux2; float cct, duv, lux2;
this->calculate_irradiance(irradiance, irradiance_photopic, lux); this->calculate_irradiance(irradiance, irradiance_photopic, lux);
this->calculate_ppfd(ppfd); this->calculate_ppfd(ppfd, par);
this->calculate_color_params(cct, duv, lux2); this->calculate_color_params(cct, duv, lux2);
// ESP_LOGD(TAG, "BEFORE GLASS ATTENUATION"); // ESP_LOGD(TAG, "BEFORE GLASS ATTENUATION");
@ -260,10 +260,12 @@ void AS7343Component::calculate_and_publish() {
lux *= this->glass_attenuation_factor_; lux *= this->glass_attenuation_factor_;
lux2 *= this->glass_attenuation_factor_; lux2 *= this->glass_attenuation_factor_;
ppfd *= this->glass_attenuation_factor_; ppfd *= this->glass_attenuation_factor_;
par *= this->glass_attenuation_factor_;
ESP_LOGD(TAG, "AFTER GLASS ATTENUATION"); ESP_LOGD(TAG, "AFTER GLASS ATTENUATION");
ESP_LOGD(TAG, " ,Irradiance , %f, W/m²", irradiance); ESP_LOGD(TAG, " ,Irradiance , %f, W/m²", irradiance);
ESP_LOGD(TAG, " ,Irradiance(photopic), %f, W/m²", irradiance_photopic); ESP_LOGD(TAG, " ,Irradiance(photopic), %f, W/m²", irradiance_photopic);
ESP_LOGD(TAG, " ,PAR , %f, W/m²", par);
ESP_LOGD(TAG, " ,PPFD , %f, µmol/s⋅m²", ppfd); ESP_LOGD(TAG, " ,PPFD , %f, µmol/s⋅m²", ppfd);
ESP_LOGD(TAG, " ,Lux(solar coeff) , %f, lx", lux); ESP_LOGD(TAG, " ,Lux(solar coeff) , %f, lx", lux);
ESP_LOGD(TAG, " ,Lux(XYZ) , %f, lx", lux2); ESP_LOGD(TAG, " ,Lux(XYZ) , %f, lx", lux2);
@ -404,7 +406,7 @@ void AS7343Component::calculate_basic_counts() {
} }
} }
void AS7343Component::calculate_ppfd(float &ppfd) { void AS7343Component::calculate_ppfd(float &ppfd, float &par) {
/* /*
Given the spectral irradiance Iλ, defined as the radiant flux Given the spectral irradiance Iλ, defined as the radiant flux
per unit wavelength and unit area, the photon flux density per unit wavelength and unit area, the photon flux density
@ -430,6 +432,7 @@ void AS7343Component::calculate_ppfd(float &ppfd) {
*/ */
ppfd = 0; ppfd = 0;
par = 0;
// assume we integrate using rectangles - mid point is channel wavelength, width is channel width in nm // assume we integrate using rectangles - mid point is channel wavelength, width is channel width in nm
for (uint8_t i = 0; i < AS7343_NUM_CHANNELS; i++) { for (uint8_t i = 0; i < AS7343_NUM_CHANNELS; i++) {
@ -443,15 +446,17 @@ void AS7343Component::calculate_ppfd(float &ppfd) {
// hack? // hack?
irradiance_in_w_per_m2 *= 10; irradiance_in_w_per_m2 *= 10;
// float photon_flux = irradiance_in_w_per_m2 * CHANNEL_NM[i] * 0.836e-2; // float photon_flux = irradiance_in_w_per_m2 * CHANNEL_NM[i] * 0.836e-2;
// // ESP_LOGD(TAG, "Photon flux (%.0f) = %.2f", CHANNEL_NM[i], photon_flux); // // ESP_LOGD(TAG, "Photon flux (%.0f) = %.2f", CHANNEL_NM[i], photon_flux);
// // assume channels cover whole range // // assume channels cover whole range
// ppfd += photon_flux * CHANNEL_NM_WIDTH[i] / 1e9f; // nm to meters // ppfd += photon_flux * CHANNEL_NM_WIDTH[i] / 1e9f; // nm to meters
ppfd += irradiance_in_w_per_m2; // k = λ / h * c * Na
// 1 W/m2 = λ / 119.565
// https://www.gigahertz-optik.com/en-us/service-and-support/knowledge-base/measurement-of-par/
ppfd += irradiance_in_w_per_m2 * CHANNEL_NM[i] / 119.565;
par += irradiance_in_w_per_m2;
} }
// https://www.controlledenvironments.org/wp-content/uploads/sites/6/2017/06/Ch01.pdf
ppfd *= 4.6; // good approximation 1 W/m2 ≈ 4.6 μmole.m2/s.
} }
void AS7343Component::calculate_irradiance(float &irradiance_in_w_per_m2, float &irradiance_in_w_per_m2_photopic, void AS7343Component::calculate_irradiance(float &irradiance_in_w_per_m2, float &irradiance_in_w_per_m2_photopic,
@ -468,10 +473,9 @@ void AS7343Component::calculate_irradiance(float &irradiance_in_w_per_m2, float
// //
irr_band = this->readings_.basic_counts[i] * CHANNEL_IRRAD_MW_PER_BASIC_COUNT[i] / 1000; irr_band = this->readings_.basic_counts[i] * CHANNEL_IRRAD_MW_PER_BASIC_COUNT[i] / 1000;
//errata hack??? // errata hack???
irr_band *= 10; irr_band *= 10;
irradiance_in_w_per_m2 += irr_band; irradiance_in_w_per_m2 += irr_band;
// photo_band *= CHANNEL_ENERGY_CONTRIBUTION[i]; ?? ideas // photo_band *= CHANNEL_ENERGY_CONTRIBUTION[i]; ?? ideas
@ -520,7 +524,7 @@ void AS7343Component::calculate_color_params(float &cct, float &duv, float &lux)
// ESP_LOGD(TAG, "XYZ: %.2f, %.2f, %.2f", XYZ[0], XYZ[1], XYZ[2]); // ESP_LOGD(TAG, "XYZ: %.2f, %.2f, %.2f", XYZ[0], XYZ[1], XYZ[2]);
// ESP_LOGD(TAG, "x: %.4f, y: %.4f, z: %.4f", x, y, z); // ESP_LOGD(TAG, "x: %.4f, y: %.4f, z: %.4f", x, y, z);
// ESP_LOGD(TAG, "XYZ: CCT: %.2f, lux: %.2f", cct, lux); // ESP_LOGD(TAG, "XYZ: CCT: %.2f, lux: %.2f", cct, lux);
} }
bool AS7343Component::read_all_channels() { bool AS7343Component::read_all_channels() {
@ -571,9 +575,11 @@ bool AS7343Component::read_all_channels() {
bool AS7343Component::is_data_ready() { bool AS7343Component::is_data_ready() {
AS7343RegStatus2 status2{0}; AS7343RegStatus2 status2{0};
status2.raw = this->reg((uint8_t) AS7343Registers::STATUS2).get(); status2.raw = this->reg((uint8_t) AS7343Registers::STATUS2).get();
this->reg((uint8_t) AS7343Registers::STATUS2) = status2.raw;
if (status2.avalid) {
ESP_LOGD(TAG, "Status2 0x%02x, avalid %d, asat_digital %d, asat_analog %d", status2.raw, status2.avalid, ESP_LOGD(TAG, "Status2 0x%02x, avalid %d, asat_digital %d, asat_analog %d", status2.raw, status2.avalid,
status2.asat_digital, status2.asat_analog); status2.asat_digital, status2.asat_analog);
this->reg((uint8_t) AS7343Registers::STATUS2) = status2.raw; }
// return this->read_register_bit((uint8_t) AS7343Registers::STATUS2, 6); // return this->read_register_bit((uint8_t) AS7343Registers::STATUS2, 6);
return status2.avalid; return status2.avalid;

2
esphome/components/as7343/as7343.h
View file

@ -57,7 +57,7 @@ class AS7343Component : public PollingComponent, public i2c::I2CDevice {
bool read_all_channels(); bool read_all_channels();
void calculate_basic_counts(); void calculate_basic_counts();
void calculate_ppfd(float &ppfd); void calculate_ppfd(float &ppfd, float &par);
void calculate_irradiance(float &irradiance, float &irradiance_photopic, float &lux); void calculate_irradiance(float &irradiance, float &irradiance_photopic, float &lux);
void calculate_color_params(float &ct, float &duv, float &lux); void calculate_color_params(float &ct, float &duv, float &lux);