PR-2501/scanner_script
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tested and tuned on Veghel Lab system

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gertjan 2026-03-17 23:20:26 +01:00
parent 5d20d50822
commit 06f35acc4e
2 changed files with 15 additions and 13 deletions
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8
config.yaml
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@ -1,9 +1,9 @@
# Configuration file for scanner service # Configuration file for scanner service
# it is automatically re-loaded between scans # it is automatically re-loaded between scans
start_freq: 10000.0 start_freq: 1000
stop_freq: 0.1 stop_freq: 0.2
freq_step_multiply: 0.95 freq_step_multiply: 0.95
allowed_noise_level: 9
skip_scans_for_noisy_freqs: 5
ampl: 1600 ampl: 1600
interference_freq: 0.052
interference_bandwidth: 0.008
noise_scan: False noise_scan: False

16
scanner.py
View file

@ -15,7 +15,7 @@ import os
data_rows = [] # global 2-D list data_rows = [] # global 2-D list
state = {} state = {}
blacklist = [] blacklist = []
ALLOWED_NOISE_LEVEL = 100.0 Inoise_baseline = 0.1
PATTERN = re.compile( PATTERN = re.compile(
r"Va=(?P<Va>[\d.-]+)\s+Vp=(?P<Vp>[\d.-]+)\s+\|\s+" r"Va=(?P<Va>[\d.-]+)\s+Vp=(?P<Vp>[\d.-]+)\s+\|\s+"
@ -198,7 +198,7 @@ class TelnetReader:
print("Interrupted by user.") print("Interrupted by user.")
print(data_rows) print(data_rows)
if state["freq"]>0.00001: # check if scan ended normally (e.g. no abort due to clipping) if state["freq"]>0.00001: # check if scan ended normally (e.g. no abort due to clipping)
if False: if True: # XXXDB
dump_into_database() dump_into_database()
else: else:
dump_csv("measurements.csv") dump_csv("measurements.csv")
@ -217,6 +217,7 @@ class TelnetReader:
def process_line(self, line): def process_line(self, line):
global state global state
global Inoise_baseline
# print(f"RAW: {line}") # print(f"RAW: {line}")
if not line.startswith("Va="): # skip lines that are not to be analyzed if not line.startswith("Va="): # skip lines that are not to be analyzed
return return
@ -239,13 +240,15 @@ class TelnetReader:
# there will be a lot of lines, but they will be skipped as they do not match the pattern # there will be a lot of lines, but they will be skipped as they do not match the pattern
else: # regular loop (not initializing) else: # regular loop (not initializing)
extract_to_dataframe(line) # capture the measurement extract_to_dataframe(line) # capture the measurement
if data_rows and (data_rows[-1][11]>ALLOWED_NOISE_LEVEL or data_rows[-1][12]>ALLOWED_NOISE_LEVEL): if state["freq"]>3.0:
Inoise_baseline = 0.8*Inoise_baseline + 0.2*data_rows[-1][12] # remember last baseline around 3Hz (assuming top-down scanning)
if data_rows and (data_rows[-1][11]>state["allowed_noise_level"] or data_rows[-1][12]>state["allowed_noise_level"] or (state["freq"]<3.0 and data_rows[-1][12]>1.25*Inoise_baseline)):
# Too much noise: add to blacklist # Too much noise: add to blacklist
print("Too much noise - adding to blacklist") print("Too much noise - adding to blacklist")
blacklist.append({"Freq": state["freq"], "NrToSkip": 10}) blacklist.append({"Freq": state["freq"], "NrToSkip": state["skip_scans_for_noisy_freqs"]})
print(f"Blacklist: {blacklist}\r") print(f"Blacklist: {blacklist}\r")
del data_rows[-1] # remove this last entry from the list (for DB it is okay, but for CSV things will shift) del data_rows[-1] # remove this last entry from the list (for DB it is okay, but for CSV things will shift)
# print(f"minmax: {data_rows[7]},{data_rows[8]},{data_rows[9]},{data_rows[10] }\n") else:
if data_rows and (data_rows[-1][7]<5 or data_rows[-1][8]>250 or data_rows[-1][9]<5 or data_rows[-1][10]>250): # XXXDB if data_rows and (data_rows[-1][7]<5 or data_rows[-1][8]>250 or data_rows[-1][9]<5 or data_rows[-1][10]>250): # XXXDB
state["freq"] = 0 # force ending of the scan, and write no data in the database state["freq"] = 0 # force ending of the scan, and write no data in the database
# calculate next freq # calculate next freq
@ -313,11 +316,10 @@ if __name__ == "__main__":
reader.read_loop() reader.read_loop()
# decrement all freq's in blacklist: # decrement all freq's in blacklist:
print(f"Before decrementing: {blacklist}")
for item in blacklist: for item in blacklist:
item["NrToSkip"] -= 1 item["NrToSkip"] -= 1
blacklist = [item for item in blacklist if item["NrToSkip"] != 0] # remove all zero items blacklist = [item for item in blacklist if item["NrToSkip"] != 0] # remove all zero items
print(f"After removing zeros: {blacklist}") print(f"Blacklist: {blacklist}")
finally: finally:
reader.disconnect() reader.disconnect()