def estimate_motion():
"""Saves the motion level of the patient into the ontology"""
clock = graph.value(home["clock"], qol["hasValue"]).toPython()
# set the room motions in the window frame
for room in rooms.values():
room.motion = 0
for sensor in room.sensors:
# We exclude the old states
sensor.on_states = [state for state in sensor.on_states if clock - state <= TIME_WINDOW]
room.motion = room.motion + len(sensor.on_states)
# integrate new updates to the room motions
for uri, sensor in sensors.items():
try:
last_update = graph.value(uri, qol["lastUpdate"]).toPython()
except AttributeError:
last_update = None
if not sensor.on_states or last_update != sensor.on_states[-1]:
state = graph.value(uri, qol["hasCurrentState"])
if state is not None and (state, qol["indicateLocation"], Literal(True)) in graph:
sensor.on_states.append(last_update)
sensor.room.motion = sensor.room.motion + 1
# update the ontology with the room motions
for uri, room in rooms.items():
graph.set((uri, qol["motionMeasured"], Literal(room.motion)))
# update the ontology with the house motion
home_motion = sum([room.motion for room in rooms.values()])
graph.set((house, qol["motionMeasured"], Literal(home_motion)))
def read_activity():
"""Retrieve the current activity in the ontology"""
# TODO make the subject more generic
activity = graph.value(home['johndoe'], qol['believedToDo'])
labels = graph.preferredLabel(activity, lang='en')
if labels:
return labels[0][1].toPython()
return None
self.motion = 0
def add_sensor(self, sensor):
self.sensors.append(sensor)
class Sensor(object):
def __init__(self, sensor, room):
self.room = room
self.sensor = sensor
self.on_states = []
self.room.add_sensor(self)
# INIT
house = graph.value(predicate=RDF.type, object=qol["House"])
room_query = graph.query(
"""SELECT DISTINCT ?room
WHERE {
?room rdf:type ?class .
?class rdfs:subClassOf* qol:Room .
?room qol:partOf ?house .
}""",
initBindings={"house": house},
initNs={"qol": qol},
)
rooms = {row.room: Room(row.room) for row in room_query}
# We don't care of door sensors here
sensor_query = graph.query(
