47d76be5df
Meme modele que NPM: ecriture en base avec valeurs a 0 et noise_status=0xFF si capteur deconnecte, flag ERR_NOISE (bit 5) dans byte 66 UDP, messages explicites sur page capteurs et self-test. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
'''
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____ ___ _ _ _ _ ____
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/ ___| / _ \| | | | \ | | _ \
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\___ \| | | | | | | \| | | | |
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___) | |_| | |_| | |\ | |_| |
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|____/ \___/ \___/|_| \_|____/
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python3 /var/www/nebuleair_pro_4g/sound_meter/NSRT_mk4_get_data.py
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Script to get data from the NSRT_MK4 Sound Level Meter
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triggered by a systemd service
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sudo systemctl status nebuleair-noise-data.service
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Need to install "nsrt_mk3_dev"
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1.Intervalle d'enregistrement
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L'intervalle d'enregistrement définit le temps entre deux points successifs enregistrés.
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Cela définit également la période d'intégration pour le LEQ, et la période d'observation pour L-min et L-max et Lpeak.
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L'intervalle d'enregistrement peut être réglé de 125 ms (1/8ème) à 2 H par incréments de 125 ms.
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some parameters can be changed:
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write_tau(tau: float) -> time constant
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write_fs(frequency: int) -> sampling freq
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'''
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import nsrt_mk3_dev
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import sqlite3
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# noise_status: 0x00 = OK, 0xFF = disconnected
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noise_status = 0x00
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leq_level_rounded = 0
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weighted_level_rounded = 0
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try:
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nsrt = nsrt_mk3_dev.NsrtMk3Dev('/dev/ttyACM0')
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freq_level = nsrt.read_fs() #current sampling frequency
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time_constant = nsrt.read_tau() #reads the current time constant
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leq_level = nsrt.read_leq() #current running LEQ and starts the integration of a new LEQ.
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weighting = nsrt.read_weighting() #weighting curve that is currently selected ( A ou C)
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weighted_level = nsrt.read_level() #current running level in dB.
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leq_level_rounded = round(leq_level, 2)
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weighted_level_rounded = round(weighted_level, 2)
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except Exception as e:
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err_msg = str(e)
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if "No such file or directory" in err_msg or "could not open port" in err_msg:
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print(f"NSRT MK4 disconnected: {err_msg}")
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noise_status = 0xFF
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else:
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print(f"NSRT MK4 error: {err_msg}")
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noise_status = 0xFF
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# Connect to the SQLite database
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conn = sqlite3.connect("/var/www/nebuleair_pro_4g/sqlite/sensors.db")
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cursor = conn.cursor()
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#GET RTC TIME from SQlite
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cursor.execute("SELECT * FROM timestamp_table LIMIT 1")
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row = cursor.fetchone() # Get the first (and only) row
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rtc_time_str = row[1] # '2025-02-07 12:30:45'
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#save to sqlite database
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try:
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cursor.execute('''
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INSERT INTO data_NOISE (timestamp, current_LEQ, DB_A_value, noise_status) VALUES (?,?,?,?)'''
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, (rtc_time_str, leq_level_rounded, weighted_level_rounded, noise_status))
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conn.commit()
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except Exception as e:
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print(f"Database error: {e}")
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conn.close() |