diff options
Diffstat (limited to 'lib/loader.py')
| -rw-r--r-- | lib/loader.py | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/loader.py b/lib/loader.py index 2f45a99..0d8231d 100644 --- a/lib/loader.py +++ b/lib/loader.py @@ -1357,6 +1357,7 @@ class EnergyTraceWithBarcode: self.errors.append( 'zbar module is not available. Try "apt install python3-zbar"' ) + self.interval_power = None return list() ( @@ -1426,9 +1427,12 @@ class EnergyTraceWithBarcode: * `uW_mean_delta_next`: Differenz zwischen uW_mean und uW_mean des Folgezustands """ + energy_trace = list() first_sync = self.find_first_sync() - energy_trace = list() + if first_sync is None: + logger.error("did not find initial synchronization pulse") + return energy_trace expected_transitions = list() for trace_number, trace in enumerate(traces): @@ -1558,6 +1562,9 @@ class EnergyTraceWithBarcode: return energy_trace def find_first_sync(self): + # zbar unavailable + if self.interval_power is None: + return None # LED Power is approx. self.led_power W, use self.led_power/2 W above surrounding median as threshold sync_threshold_power = ( np.median(self.interval_power[: int(3 * self.sample_rate)]) |