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33 lines
1.3 KiB
Python
33 lines
1.3 KiB
Python
import json
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import threading
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class MqttObjectPublisher(threading.Thread):
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def __init__(self, client, topic_prefix, objects_parsed, detected_objects):
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threading.Thread.__init__(self)
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self.client = client
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self.topic_prefix = topic_prefix
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self.objects_parsed = objects_parsed
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self._detected_objects = detected_objects
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def run(self):
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last_sent_payload = ""
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while True:
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# initialize the payload
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payload = {}
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# wait until objects have been parsed
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with self.objects_parsed:
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self.objects_parsed.wait()
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# add all the person scores in detected objects
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detected_objects = self._detected_objects.copy()
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person_score = sum([obj['score'] for obj in detected_objects if obj['name'] == 'person'])
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# if the person score is more than 100, set person to ON
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payload['person'] = 'ON' if int(person_score*100) > 100 else 'OFF'
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# send message for objects if different
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new_payload = json.dumps(payload, sort_keys=True)
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if new_payload != last_sent_payload:
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last_sent_payload = new_payload
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self.client.publish(self.topic_prefix+'/objects', new_payload, retain=False) |