Table 3.
Variables, their categories and subcategories according to the ontology for building monitoring13, and intervals.
| Categories of data | Subcategories of measured data | Variable | Interval | Sensor | |
|---|---|---|---|---|---|
| Range | Accuracy | ||||
| Inhabitants | Other | Presence (all rooms) | Event | — | — |
| Other | Window state (open/closed) | Event | — | — | |
| Other | Top-light window state (open/closed) | Event | |||
| Other | State of sun protection (open/closed) | Event | — | — | |
| Indoor conditions | Hygro-thermal | Air temperature | 10 minutes | 0–40 °C | ±0.1 K |
| Hygro-thermal | Relative humidity (all rooms) | 10 minutes | 0–100% | ±1% | |
| Indoor Air Quality | CO2-level (3 rooms) | 10 minutes | 300–3500 ppm | ±3% | |
| External conditions | Hygro-thermal | Air temperature | 10 minutes | −40–+ 45 °C | ±0.1 K |
| Hygro-thermal | Relative humidity | 10 minutes | 0–100% | ±2% | |
| Visual | Illuminance (4 orientations + horizontal) | 10 minutes | 0–100,000 lx | ±5% | |
| Solar radiation | Horizontal solar radiation | 10 minutes | 0–1300 W/m² | ±2.5% | |
| Other | Precipitation (Amount and event) | 10 minutes | — | — | |
| Other | Wind speed and direction | 10 minutes | 0–360° 0–20 m/s | — | |
| Energy | Heating/cooling | Overall heat quantity pellet boiler and gas boiler | 10 minutes | ±1% | |
| Lighting | Lighting energy (3 meters for 5 rooms) | 10 minutes | ±0.5% | ||
| Equipment | Plug loads separated by IT and other (3 rooms) | 10 minutes | ±0.5% | ||
| Other | Total electricity use of building | 10 minutes | ±0.5% | ||