LowPass Filter for unrealistic values

Feature Requests
1

Wouldn’t it be great and easy to implement if you could simply specify a low-pass filter for entities?
A plug cannot consume more than 4000 watts and my living room never has more than 50°C room temperature.
Nevertheless, there are always values that mess up my statistics.
If you were to give each sensor a maximum value and just cut everything above, you could exclude these spikes.
…and its a very common issue if I search the internet.
Cheers
Christian

2 
# Example configuration.yaml entry
sensor:
  - platform: filter
    name: "filtered realistic humidity"
    entity_id: sensor.realistic_humidity
    filters:
      - filter: outlier
        window_size: 4
        radius: 4.0
      - filter: lowpass
        time_constant: 10
        precision: 2
  - platform: filter
    name: "filtered realistic temperature"
    entity_id: sensor.realistic_temperature
    filters:
      - filter: outlier
        window_size: 4
        radius: 2.0
      - filter: lowpass
        time_constant: 10
      - filter: time_simple_moving_average
        window_size: "00:05"
        precision: 2
3

Add a state class to it shows up in the LTS as well.