def get_average_kpa(sensor_readings):
sysoplog.debug("In get average kpa")
reading_count = 0
total_kpa = 0
for sr in sensor_readings:
# sysoplog.info("Next KPA: " + str(sr.kpa_value))
total_kpa += sr.kpa_value
reading_count += 1
avg_kpa = total_kpa / reading_count
sysoplog.debug("Computed average KPA is : " + str(avg_kpa))
return avg_kpa
def in_watering_window():
# function to see if current time is within watering window or not
# that is, is it ok to water or not
watering_hour_min = 8
watering_hour_max = 18
sysoplog.debug("In check watering window")
time_now = datetime.datetime.now()
hour_now = time_now.hour
# ret_val = False
if ((hour_now >= watering_hour_min) and (hour_now <= watering_hour_max)):
sysoplog.debug("In watering window")
in_window = True
else:
sysoplog.debug("NOT In watering window")
in_window = False
sysoplog.debug("Time now hour is: ")
sysoplog.debug(time_now.hour)
return in_window
def crop_needs_watering(crop, kpa, test_mode):
sysoplog.debug("In crop needs watering:")
sysoplog.debug("Crop Dry KPA: " + str(crop.dry_kpa))
sysoplog.debug("Current KPA: " + str(kpa))
# if the current kpa is above the crop 'dry' kpa, then watering is needed
watering_needed = False
if (kpa > crop.dry_kpa):
sysoplog.info("Crop is too dry, needs watering: %s : Dry: %d Avg: %d",
crop.crop_name, crop.dry_kpa, kpa)
watering_needed = True
if (test_mode):
watering_needed = True
# return watering_needed
return watering_needed
def initialize_scheduler():
# aqua_sched.add_job(do_moister_readings, 'interval', seconds=30)
do_moister_readings_job = aqua_sched.add_job(do_moister_readings,
'interval',
minutes=20)
sysoplog.debug("Do moisture reading Job info:")
sysoplog.debug(do_moister_readings_job.name)
sysoplog.debug(do_moister_readings_job)
do_watering_job = aqua_sched.add_job(func=do_watering,
args=[False],
trigger='interval',
minutes=60)
sysoplog.debug("Do Watering Job info:")
sysoplog.debug(do_watering_job.name)
sysoplog.debug(do_watering_job)
initial_water_check_date_time = datetime.datetime.now(
) + datetime.timedelta(minutes=2)
# aqua_sched.add_date_job(func=valves.close_valve, args=valve_id, date=close_valve_date_time)
initial_water_check_job = aqua_sched.add_job(
func=do_watering,
args=[False],
trigger='date',
run_date=initial_water_check_date_time)
sysoplog.debug(initial_water_check_job.name)
sysoplog.debug(initial_water_check_job)
do_weather_readings_job = aqua_sched.add_job(do_weather_readings,
'interval',
minutes=15)
sysoplog.debug("Do weather reading Job info:")
sysoplog.debug(do_weather_readings_job.name)
sysoplog.debug(do_weather_readings_job)
aqua_sched.start()
def do_watering(test_mode):
sysoplog.info("====================================")
sysoplog.info("SYSOPS: Do Watering ...")
sysoplog.debug(test_mode)
sysoplog.info("====================================")
try:
watering_initiated = False
if (in_watering_window() or test_mode):
all_sensors = sensors.get_sensors()
for nxt_sensor in all_sensors:
sysoplog.debug("Process sensor: ")
sysoplog.debug(nxt_sensor.__dict__)
# Get latest readings and determine an average current KPa value
readings = sensors.get_latest_sensor_readings(
nxt_sensor.sensor_id, 3)
sysoplog.debug(readings)
avg_kpa = get_average_kpa(readings)
sysoplog.debug(avg_kpa)
crop = nxt_sensor.crops
sysoplog.debug("Crop for sensor is:")
sysoplog.debug(crop.__dict__)
if (crop_needs_watering(crop, avg_kpa, test_mode)):
if (watering_initiated):
sysoplog.warning(
"Not watering due to watering in progress")
else:
water_job = water_crop(crop, nxt_sensor.valve_id,
avg_kpa)
email_subject = "Watering Event Started"
send_email_notice(email_subject, "Testing")
email_content = 'Sensor:{sensor} Valve:{valve} Crop:{crop} Expected End Time:{end}'.format(
sensor=nxt_sensor.sensor_name,
valve=nxt_sensor.valve_id,
crop=crop.crop_name,
end=water_job.trigger)
send_email_notice(email_subject, email_content)
watering_initiated = True
else:
sysoplog.info("No crops need watering")
except Exception:
message = "Fatal error in do_watering"
sysoplog.exception(message)
send_email_notice("AQUAMAN: Exception Detected", message)