My own bayesian ‘in bed bayesian sensor’ is working nicely now. I found that the ‘sun below horizon’ input wasn’t particularly useful, since in the UK at this time of year the sun is setting before 5pm.! Instead I’m using a template sensor which is ON at ‘late night’.
- platform: template
sensors:
late_night_sensor:
value_template: >-
{{ strptime("22:00", "%H%M") < now().strftime("%H:%M")
or now().strftime("%H:%M") < strptime("07:00", "%H%M") }}
As a couple of others have done I also have a sensor to detect when there has been no motion in the house for 5 minutes. I implemented that using an input_select and an automation:
- id: '1513346519354'
alias: House_idle
trigger:
- entity_id: binary_sensor.motion_at_home
for:
minutes: 5
from: 'on'
platform: state
to: 'off'
action:
- data:
entity_id: input_boolean.house_idle
service: input_boolean.turn_on
Finally the bayesian sensor is:
- platform: 'bayesian'
name: 'in_bed_bayesian'
prior: 0.25
probability_threshold: 0.5
observations:
- entity_id: 'group.all_lights'
prob_given_true: 0.4
platform: 'state'
to_state: 'off'
- entity_id: 'input_boolean.house_idle'
prob_given_true: 0.6
platform: 'state'
to_state: 'on'
- entity_id: 'binary_sensor.late_night_sensor'
prob_given_true: 0.7
platform: 'state'
to_state: 'on'
- entity_id: 'switch.macbook_power'
prob_given_true: 0.1
platform: 'state'
to_state: 'on'
I am using the history statistics component and a template sensor to display the number of hours I spent in bed last night.
- platform: history_stats
name: Time in bed
entity_id: binary_sensor.in_bed_bayesian
state: 'on'
type: time
end: '{{ now() }}'
duration:
hours: 24
And the template sensor:
- platform: template
sensors:
time_in_bed_template:
friendly_name: 'Time in bed'
value_template: '{{states.sensor.time_in_bed.attributes.value}}'
Lastly, I wrote a notebook discussing the ideas behind the bayesian sensor, and many thanks to @jlmcgehee21 for his edits:
If theres sufficient interest, I will format this for a blog post, so let me know.
Cheers!