The Home Resilience Index Concept
Modern smart homes collect vast sensor data, but it’s scattered across hundreds of entities. The Home Resilience Index (HRI) condenses four critical dimensions into a single 0–100 score so homeowners can assess overall home health at a glance.
The 4 HRI Dimensions
| Dimension | Weight | Indicators | |---|---|---| | Security (S) | 30% | Frigate 24h event count, door locks, cameras online | | Air Quality (A) | 25% | PM2.5, CO2 ppm, TVOC | | Energy (E) | 25% | Solar self-consumption %, battery SOC, grid dependency | | Wellness (W) | 20% | Temperature/humidity, noise dB, presence hours |
HRI Formula and Sub-scores
HRI = (S_score × 0.30) + (A_score × 0.25) + (E_score × 0.25) + (W_score × 0.20)
Each sub-score normalizes raw sensor readings to 0–100 via linear interpolation:
python # AQI score: PM2.5 0=100pts, PM2.5 75+=0pts aqi_score = max(0, 100 - (pm25 / 75) * 100) # Energy score: solar self-consumption + battery SOC weighted average energy_score = (solar_self_pct * 0.6) + (battery_soc * 0.4) # Security score: penalize threats, bonus for locked doors + cameras online threat_penalty = min(100, frigate_events_24h * 15) security_score = max(0, min(100, 100 - threat_penalty + (10 if all_locks_locked else 0) + (5 if cameras_online else 0) ))
Home Assistant Template Sensors
yaml template: - sensor: - name: HRI Security Score unit_of_measurement: pts state: > {% set events = states('sensor.frigate_events_24h') | int(0) %} {% set locks = states('lock.front_door') == 'locked' and states('lock.back_door') == 'locked' %} {% set cams = states('binary_sensor.frigate_cameras_online') == 'on' %} {% set base = [0, 100 - (events * 15)] | max %} {{ [100, base + (10 if locks else 0) + (5 if cams else 0)] | min }} - name: HRI AQI Score unit_of_measurement: pts state: > {% set pm25 = states('sensor.pm25_indoor') | float(0) %} {% set co2 = states('sensor.co2_living_room') | float(400) %} {% set pm_score = [0, 100 - (pm25 / 75 * 100)] | max %} {% set co2_score = [0, 100 - ((co2 - 400) / 1200 * 100)] | max %} {{ ((pm_score * 0.6) + (co2_score * 0.4)) | round(1) }} - name: Home Resilience Index unit_of_measurement: pts icon: mdi:shield-home state: > {% set s = states('sensor.hri_security_score') | float(0) %} {% set a = states('sensor.hri_aqi_score') | float(0) %} {% set e = states('sensor.hri_energy_score') | float(0) %} {% set w = states('sensor.hri_wellness_score') | float(0) %} {{ (s * 0.30 + a * 0.25 + e * 0.25 + w * 0.20) | round(1) }}
Lovelace Dashboard Layout
yaml type: vertical-stack cards: - type: gauge entity: sensor.home_resilience_index name: 🏠 HRI min: 0 max: 100 severity: green: 70 yellow: 40 red: 0 needle: true - type: horizontal-stack cards: - type: gauge entity: sensor.hri_security_score name: 🔒 Security min: 0 max: 100 - type: gauge entity: sensor.hri_aqi_score name: 🌿 Air min: 0 max: 100 - type: gauge entity: sensor.hri_energy_score name: ⚡ Energy min: 0 max: 100 - type: gauge entity: sensor.hri_wellness_score name: 💚 Wellness min: 0 max: 100
LINE Alert When HRI Drops Below Threshold
yaml alias: HRI Alert — Below 50 trigger: - platform: numeric_state entity_id: sensor.home_resilience_index below: 50 for: "00:10:00" action: - service: notify.line_notify data: message: >- ⚠️ HRI: {{ states('sensor.home_resilience_index') }}/100 Security: {{ states('sensor.hri_security_score') }} Air: {{ states('sensor.hri_aqi_score') }} Energy: {{ states('sensor.hri_energy_score') }} Wellness: {{ states('sensor.hri_wellness_score') }}
Summary
The HRI transforms hundreds of sensor readings into one actionable number — ideal for daily summary reports, executive dashboards, or alerts when home conditions deteriorate across any dimension.