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Adjust loitering behavior based on object type (#19433)
* Adjust loitering behavior based on object * Update docs * Grammar
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@ -88,7 +88,9 @@ Sometimes objects are expected to be passing through a zone, but an object loite
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:::note
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When using loitering zones, a review item will remain active until the object leaves. Loitering zones are only meant to be used in areas where loitering is not expected behavior.
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When using loitering zones, a review item will behave in the following way:
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- When a person is in a loitering zone, the review item will remain active until the person leaves the loitering zone, regardless of if they are stationary.
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- When any other object is in a loitering zone, the review item will remain active until the loitering time is met. Then if the object is stationary the review item will end.
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:::
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@ -32,6 +32,14 @@ from frigate.util.velocity import calculate_real_world_speed
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logger = logging.getLogger(__name__)
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# In most cases objects that loiter in a loitering zone should alert,
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# but can still be expected to stay stationary for extended periods of time
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# (ex: car loitering on the street vs when a known person parks on the street)
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# person is the main object that should keep alerts going as long as they loiter
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# even if they are stationary.
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EXTENDED_LOITERING_OBJECTS = ["person"]
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class TrackedObject:
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def __init__(
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self,
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@ -247,8 +255,12 @@ class TrackedObject:
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if zone.distances and not in_speed_zone:
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continue # Skip zone entry for speed zones until speed threshold met
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# if the zone has loitering time, update loitering status
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if zone.loitering_time > 0:
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# if the zone has loitering time, and the object is an extended loiter object
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# always mark it as loitering actively
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if (
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self.obj_data["label"] in EXTENDED_LOITERING_OBJECTS
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and zone.loitering_time > 0
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):
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in_loitering_zone = True
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loitering_score = self.zone_loitering.get(name, 0) + 1
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@ -264,6 +276,10 @@ class TrackedObject:
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self.entered_zones.append(name)
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else:
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self.zone_loitering[name] = loitering_score
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# this object is pending loitering but has not entered the zone yet
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if zone.loitering_time > 0:
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in_loitering_zone = True
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else:
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self.zone_presence[name] = zone_score
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else:
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