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Update Bayesian Binary Sensor configuration (#6998)

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* Update Bayesian Binary Sensor configuration

* Clarify observation platform example differences

* Update binary_sensor.bayesian.markdown
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Jorim Tielemans 2018-10-22 21:45:37 +02:00 committed by Fabian Affolter
parent 0cededca4a
commit 873bbada90
1 changed files with 51 additions and 12 deletions
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63
source/_components/binary_sensor.bayesian.markdown
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@ -14,7 +14,6 @@ ha_release: 0.53
ha_qa_scale: internal
---
The `bayesian` binary sensor platform observes the state from multiple sensors and uses [Bayes' rule](https://en.wikipedia.org/wiki/Bayes%27_theorem) to estimate the probability that an event has occurred given the state of the observed sensors. If the estimated posterior probability is above the `probability_threshold`, the sensor is `on` otherwise it is `off`.
This allows for the detection of complex events that may not be readily observable, e.g., cooking, showering, in bed, the start of a morning routine, etc. It can also be used to gain greater confidence about events that _are_ directly observable, but for which the sensors can be unreliable, e.g., presence.
@ -36,20 +35,58 @@ binary_sensor:
to_state: 'on'
```
Configuration variables:
- **prior** (*Required*): The prior probability of the event. At any point in time (ignoring all external influences) how likely is this event to occur?
- **probability_threshold** (*Optional*): The probability at which the sensor should trigger to `on`.
- **name** (*Optional*): Name of the sensor to use in the frontend. Defaults to `Bayesian Binary sensor`.
- **observations** array (*Required*): The observations which should influence the likelihood that the given event has occurred.
- **entity_id** (*Required*): Name of the entity to monitor.
- **prob_given_true** (*Required*): The probability of the observation occurring, given the event is `true`.
- **prob_given_false** (*Optional*): The probability of the observation occurring, given the event is `false` can be set as well. If `prob_given_false` is not set, it will default to `1 - prob_given_true`.
- **platform** (*Required*): The only supported observation platforms are `state` and `numeric_state`, which are modeled after their corresponding triggers for automations, requiring `below` and/or `above` instead of `to_state`.
- **to_state** (*Required*): The target state.
{% configuration %}
prior:
description: >
The prior probability of the event. At any point in time
(ignoring all external influences) how likely is this event to occur?
required: true
type: float
probability_threshold:
description: The probability at which the sensor should trigger to `on`.
required: false
type: float
default: 0.5
name:
description: Name of the sensor to use in the frontend.
required: false
type: string
default: Bayesian Binary Sensor
observations:
description: The observations which should influence the likelihood that the given event has occurred.
required: true
type: list
keys:
entity_id:
description: Name of the entity to monitor.
required: true
type: string
prob_given_true:
description: The probability of the observation occurring, given the event is `true`.
required: true
type: float
prob_given_false:
description: The probability of the observation occurring, given the event is `false` can be set as well.
required: false
type: float
default: "`1 - prob_given_true` if `prob_given_false` is not set"
platform:
description: >
The only supported observation platforms are `state` and `numeric_state`,
which are modeled after their corresponding triggers for automations,
requiring `below` and/or `above` instead of `to_state`.
required: true
type: string
to_state:
description: The target state.
required: true
type: string
{% endconfiguration %}
## {% linkable_title Full examples %}
The following is an example for the `state` observation platform.
```yaml
# Example configuration.yaml entry
binary_sensor:
@ -78,6 +115,8 @@ binary_sensor:
to_state: 'below_horizon'
```
Next up an example which targets the `numeric_state` observation platform,
as seen in the configuration it requires `below` and/or `above` instead of `to_state`.
```yaml
# Example configuration.yaml entry