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bms:bestpractice:roomcontrol:headpage
Approved
2022/02/15 19:54
by mk
(version: 5)
Table of Contents
Room control
Controlling the environment in a room can be tricky. Often it's based on an economic viewpoint. I will try explaining different sensors and outputs and what I've seen used practically with good results.
I will try explaining “Best Practice” or “Ideas of best practice” below with increasing advancements.
Room control Heat
Simplest automation, is a room temperature sensor controlling room heating. Heat setpoint at 23 °C, and when room temperature gets below this setpoint, you can start regulation your heat option.
Regulation types
Regulators can be a difficult subject that requires a comprehensive explaination. For now I'll just explain 2 types.
Control curve
Control curves can be 2 points and upwards (Often no more then 10 points) For heating, imagine 2 points in a curve, where X is the temperature below setpoint eg. 10 to 0 degrees below, and Y is a percentage from 100% to 0%. See the graph below.
PID Regulator
Please visit the PID guide in guides section
Sensors explained
A sensor is basically anything inbound information, from temperature to light status.
| Sensor type | Shortname EN | Shortname DK | Unit | Description |
|---|---|---|---|---|
| Temperature | RT | TR | °C or °f | Room temperature is the most basic sensor, used for controlling heating. |
| Carbon dioxide | Co2 | Co2 or LK | ppm | Co2 is used to determine “air quality” or “the human influence” in the room. |
| Relative Humidity | RH | RH | %RH | “Relative humidity” is the amount of water vapor present in air expressed as a percentage (%RH) of the amount needed to achieve saturation at the same temperature. Too low or high values have significant impact on air quality. |
| Pressence detection | PD | PIR | On or off | Pressence detection is often used with a motion detector, but could also be infrared sensors or an ultrasonic detection system (rare or in combination with motion detection). |
| Light level | LUX | LX or LUX | lx | Measurement of the illuminance of a surface (lx), used to regulate output of the lightsource. |
| Window sensor | WS | VK | Open or Closed | Windows sensor is typically a magnet switch, used to regulate air valves and temperature |
bms/bestpractice/roomcontrol/headpage.txt · Last modified: 2022/02/15 19:53 by mk
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