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NatureThings
NatureThings Living Twin — HICA Demo
Hotel Indigo Changi Airport  ·  OUE Limited  ·  Live landscape operations demo
Not synced NatureThings · Confidential
⚙
Setup required. Replace GAS_ENDPOINT at the top of this file with your deployed Google Apps Script Web App URL. See hica_apps_script.gs for deployment steps. The twin will poll live data automatically once connected.
Live Twin
Assets
Sensors
Maintenance
Guest Experience
Reports
Settings
Profile
Sandbox
⚡ Live Demo
💧 Smart
Living Twin
HICA Smart Landscape Operations
Hotel Indigo Changi Airport  /  OUE Limited
Live Auto-refresh 5s
20 Jul 2026 · 14:32 SGT
Twin focus:
Building / floor contextClick a floor slab or floor button to isolate monitored assets
241Healthy
3Alerts
3Monitor
Building overview 247
Total plant assets
HICA / L8 · Roof Terrace
Asset visibility
100%
HealthyMonitorAlertOffline
Scroll to zoom · drag to pan · click a plant
♙
Total Assets247
♡
Healthy241
△
Alerts3
⌁
Monitors3
▦
Zones10
▱
Floors7
⌁
IoT Nodes70
⟳
Last Sync14:32
◇
Platform● Online

Asset / Floor / Sensor Mapping

Configure which live sensor belongs to which plant asset, zone and floor. The Live Twin uses this mapping to place the real sensor marker and open the correct asset details.

Vendor Directory — Consultants

Reference only. Active tickets route automatically from Maintenance and Smart Irrigation — vendors surface there when triggered, not browsed here day-to-day.

Vendor Directory — Technology Partners

Vendor Directory — Client & Authority

Invoices & Purchase Orders — to Vendors

PO / InvoiceVendorDescriptionAmount (SGD)StatusDate
PO-2026-001Rain Bird CorporationSmart irrigation controllers & valves — CAPEX Item A774,500Paid15 Mar 2026
PO-2026-002Soilthings / MilesightSoil, climate & flow sensors — CAPEX Item B78,400Paid22 Mar 2026
PO-2026-003Dragino / KerlinkLoRaWAN gateways ×3 — CAPEX Item C85,000Paid02 Apr 2026
PO-2026-004Wildlife AcousticsBioacoustic monitors ×26,200Paid10 Apr 2026
PO-2026-005Axis Communications (via integrator)Vision cameras ×8 + install6,800Pending18 Jul 2026
INV-2026-014All Naturethings Pte LtdGAIA platform — Q3 2026 subscription32,000Due 01 Aug—

Figures reference the confirmed CAPEX cost sheet. PO status is simulated pending a live accounting-system connection.

Billing — NatureThings Platform

Plan
GAIA Engine — Full Deployment
Contract value
SGD 1,034,700 (CAPEX, one-time)
Platform subscription
SGD 32,000 / quarter
Next invoice
01 Aug 2026
Billing contact
May Ling, OUE Procurement

Notifications & Routing

Irrigation / MistingEscalates to Rain Bird APAC via WA Alert + Job Report
Pruning · Soil · Pest · FertilisingEscalates to Landscape Maintenance Contractor (TBC)
All alertsLogged to Maintenance tab regardless of channel delivery

Routing is component-based, not manually assigned — see Maintenance tab for the live rule.

Privacy & Data

Guest Experience scores are aggregate and environmental — shade, temperature, air quality, ambient acoustic counts. No guest-identifiable data is collected or stored by GAIA. Sensor telemetry is retained per the configured platform backend's retention policy; NatureThings does not separately warehouse raw sensor data beyond what's needed for the live dashboard.

Integration & Connection

Backend
Google Sheets + Apps Script
Endpoint
checking…
Poll interval
60s
Vision AI
GAIA Vision Engine

Account

NV
Nalini V.
nalini@naturethings.co · CEO, All Naturethings Pte Ltd

Site Metadata

Project
Hotel Indigo Changi Airport (HICA)
Developer
OUE Limited / DBS Trustee Limited
Landscape Architect
WOHA Architects Pte Ltd
Technology Middleware
All Naturethings Pte Ltd
Grant
STB Business Improvement Fund (BIF)
Account Status
BASELINE — Pre-deployment
Account ID
HICA-2026-001 · Ref: 2026412
Quotation Date
06 February 2026
Address
T2 Coach Stand Road, Changi Airport, Singapore
Coordinates (centroid)
1.3589° N, 103.9911° E
Plantable Area
~2,500 m² across L2–L8
Floors
L2 (Lobby) to L8 (Roof Terrace)
Total Zones
13 zones (4 Intensive · 5 Medium · 4 Ordinary)
Signature Feature
Floating Forest · Epiphyte Chandeliers · Cloud Walk
Sustainability Target
Zero-energy · Rainwater harvesting · BCA Green Mark
Drawing Authority
WOHA Pte Ltd 2024 · Job No. 283

Platform KPIs — Live from Google Sheets

Total Zones
13
L2 – L8 · WOHA defined
Sensor Nodes
~70
Soil · Climate · Flow · Bioacoustic
Open Work Orders
—
Pending + In Progress
Active Alerts
—
Sensor threshold breaches
Avg Health Score
—
AI vision scan — all zones
💧 Water Savings Till Date
303.9 m³
303,900 litres · smart irrigation vs baseline
💰 Water Savings Till Date (SGD)
SGD 1,334
303.9 m³ × S$4.39 / m³ = SGD 1,334.12
🕐 Manpower Savings
35 Hrs
Automated work orders vs manual scheduling

Support Dashboard — Maintenance Status (Live)

Waiting for Google Sheets connection…

Plant image → GAIA health scan → GAIA work order

Capture a plant photo, run the secure health scan, then attach the result to a GAIA work order.

Demo workflow
Live Sensor Device Waiting for telemetry Connect the latest-telemetry API when ready.
Soil—Moisture
Temperature—Probe status
Battery—Controller
Twin Status—Last seen

1. Run a live health scan

Take one plant photograph using the device camera. The platform stores the full-quality image and runs a secure plant-health assessment.
Selected plant
Use the device camera. The captured photo is saved against the selected asset.
Waiting for a plant image.

2. Create and dispatch the work order

The order is saved to the platform and can be sent to the assigned field team with or without the captured image.
No work order dispatched yet.
AssetLICU-035
HealthMonitor
DeliveryReady

Live activity

No scans yet.

Smart Irrigation — Zone Alerts · Locked Scenario Model

Normal water use
–
m³ this cycle
Smart water use
–
m³ this cycle
Water saved
–
m³ this cycle
Reduction
–
vs normal schedule

ZoneMediumExposureInstructionEscalationController IDWater saved

† Exposure inferred from zone naming / drawings — confirm with WOHA. Escalation routes to Rain Bird APAC (V12, Smart Irrigation Controllers) — pending confirmed contact and per-zone controller IDs from the vendor. Cut ratios (70% soil / 45% epiphyte) are NatureThings engineering estimates pending confirmed hydraulic design.

Scope

NatureThings monitors, alerts, and reports only. Your irrigation vendor's controller carries out every instruction. NatureThings does not operate the irrigation system.

Standards & Data Provenance — for Authority review

SCADAGAIA follows SCADA's monitoring architecture (sensors → telemetry → dashboard → alerts) but deliberately excludes the control half — no valve actuation. That boundary is by design, not a gap; it keeps the system outside SCADA's safety-critical control obligations (e.g. IEC 62443) while retaining full visibility.
Water meteringPUB's master meter (SS 636:2018, Code of Practice for Water Services) remains the billing authority. GAIA's 17 zone flow meters are sub-meters beneath it, providing zone-level breakdown — same principle as PUB's own Smart Water Meter programme (automated, remotely-read).
CalibrationFlow and water-quality sensors calibrated to SAC-SINGLAS-traceable reference standards (SI-traceable, documented uncertainty) — the same basis PUB requires of accredited water-quality instrumentation.
Irrigation vendorController hardware: Rain Bird (CAPEX Item A). Local system integrator: HKS Engineering & Trading Pte Ltd — Singapore-based, ISO 9001 / ISO 14001, smart irrigation & water conservation specialist since 2007. Specific named platform pending vendor confirmation.

This panel exists so a BCA/PUB/STB reviewer can trace every water figure back to a named standard or vendor, not just a dashboard number.

Zone Overview — 13 Zones · L2–L8 · WOHA 2024 · Drawing ref T/L020–L/021

Zone / FeatureLevelAreaTier Lat / Lng (est.)Habitats Key SpeciesHealthStatus
Floating Forest
Rainforest Reception + Airwell
L2–Roof~380 m²Intensive1.35892°N
103.99118°E
Epiphyte PolesAroidsTree FernsMonstera deliciosa ×45Philodendron selloum ×24Epipremnum aureum ×13
82 / 100
Scheduled
Epiphyte Chandeliers
On-winch + Fixed, Airwells
L2/L3/L8~60 unitsIntensive1.35888°N
103.99115°E
Chandelier basketOverhead irrigationAsplenium nidusCymbidium finlaysonianumGrammatophyllum speciosum
78 / 100
Scheduled
Guestroom Epiphyte Poles
Western façade · all rooms
L3–L7~900 lin.mIntensive1.35884°N
103.99098°E
Epiphyte PoleAuto-dripEpipremnum giganteum ×9Epipremnum pinnatum ×8Alocasia macrorrhizos ×8
71 / 100
Monitor
L8 Roof Terrace Forest Walk
Sky forest + misting zone
L8~450 m²Intensive1.35895°N
103.99112°E
Canopy treesMistingGround fernsHopea odorata ×11Licuala grandis ×35Davallia denticulata
88 / 100
Scheduled
L2 Floating Forest Beds
Forest floor · Parts A–C
L2~600 m²Medium1.35887°N
103.99108°E
Canopy treesFull-sun shrubsPalmsDillenia grandifolia ×7Hopea odorata ×11Agathis borneensis ×2
84 / 100
Scheduled
L3 Forest Walk Terrace
Misting zone · chandelier platforms
L3~400 m²Medium1.35889°N
103.99118°E
Tree fernsSemi-shade shrubsMistingAlsophila latebrosaSelaginella willdenowiiNephrolepis biserrata
80 / 100
Scheduled
Restaurant Terrace
Outdoor F&B terrace
L8~120 m²Medium1.35898°N
103.99120°E
Focal treesFull-sun ornamentalsLagerstroemia floribunda ×2Gardenia jasminoidesCaesalpinia pulcherrima
90 / 100
Scheduled
Zen Water Feature / Pond
Water body · aquatic planting
L2/L8~80 m²Medium1.35882°N
103.99106°E
Aquatic plantsPond checksAquatic mixTurbidity sensor ×2
76 / 100
Monitor
Sky Terrace Planters L4–L7
Corridor-side planting beds
L4–L7~200 m²Medium1.35888°N
103.99104°E
Potted treesShrubsGroundcoverEuterpe edulis ×2Licuala grandis ×8Aglaonema rex
83 / 100
Scheduled
Vegetated Verticals — Creeper Walls
Felt green wall system
L2/L3~180 m²Ordinary1.35892°N
103.99106°E
Felt wall systemFernsDavallia denticulataDicranopteris linearisAsplenium tenerum
86 / 100
Scheduled
Lobby Arrival Green
Entry landscape · granite chipping beds
L2~90 m²Ordinary1.35882°N
103.99112°E
Specimen palmsGranite chippingSommieria leucophylla ×3Black granite chipping ×95 m²
91 / 100
Scheduled
BOH / Service Corridors
Back-of-house planting buffer
L2~40 m²Ordinary1.35880°N
103.99115°E
Hardy shrubsLow maintenanceAcalypha wilkesianaCodiaeum variegatum
89 / 100
Scheduled
Focal Zones (Changi Tower View)
Controlled sightline management
L2/L8~60 m²Ordinary1.35897°N
103.99113°E
Controlled canopySightline mgmtShorea roxburghii ×1Tristaniopsis merguensis
85 / 100
Scheduled

Lat/Lng are estimated centroids for HICA building footprint (~1.3589°N, 103.9911°E). Zone-level species counts from WOHA drawing schedules (Job 283, issued 18/9/2024). Health scores are placeholder baselines — updated live from Sheets when connected.

Smart Summary — for engineer / housekeeping hand-off

Building summary…

Registry — 237 Individual Assets · Grouped by Species · Unique Asset ID per Plant

237 assets

● green = healthy  ·  ● amber = monitor  ·  ● red = alert. Asset ID format NT/HICA/[Zone]/[Sequence]. Simulated distribution pending final as-built BOQ from the Landscaper — see note at foot of Maintenance tab.

Building registry…
Components OK
–
across 237 assets × 5 components
Due Soon
–
scheduled within this cycle
Overdue
–
requires action

Routine — GAIA-Scheduled, Tier-Driven

Intensive zones
Weekly
Floating Forest · Chandeliers · Guestroom Poles · L8 Roof Terrace — auto work order on IoT threshold breach
Medium zones
Fortnightly
L2 Beds · L3 Forest Walk · Restaurant Terrace · Pond · Sky Terrace
Ordinary zones
Monthly / Quarterly
Creeper Walls · Lobby · BOH Corridors · Focal Zones

Routine cadence defined by WOHA (Siew Wei), confirmed in the joint onboarding session 08.04.2026. No manual ticket needed — GAIA raises the work order automatically when a threshold or schedule fires.

Ad hoc — Raise a Ticket

Raising a ticket here drafts a field-team alert and a job-report email — same delivery pattern as GAIA's automatic alerts. Nothing sends until you confirm it in your own messaging or mail client.

Component Matrix — 237 Assets × 5 Components

AssetZoneIrrigation / MistingPruningSoil Check (EC/pH/Moisture)Pest & Disease ScanFertilising
Building matrix…

Status is simulated pending live Sheets connection — same fallback convention used across this twin. — replaces the former card-per-tier view.

Sensor Inventory — 78 Field Nodes · LoRaWAN Mesh + PoE Vision · L2–L8

78 total· 38 soil· 17 flow· 11 climate· 8 vision· 2 bioacoustic· 2 water· 13/13 zones covered

Soil: Soilthings/Milesight · Climate: LoRaWAN IP66 · Vision: Axis PoE / GAIA Vision AI · Bioacoustic: Songmeter Mini/Arbimon. Click any sensor row below for its live feed.

Smart Summary — for engineer / housekeeping hand-off

Building summary…

Full Sensor Detail — by zone

Loading zone-by-zone sensor list…

Guest Experience — What Guests Actually Feel Here

The science underneath is real — shade coverage, urban heat island mitigation, biodiversity counts, air quality index, therapeutic and stress-reduction scoring. What's below is that same data, said the way a guest would notice it. Indicative scoring (0–100) — pending NParks/Ngee Ann Poly field-study calibration referenced in your Outcome Matrix.

Loading Guest Experience data…

Key Outcomes

Loading outcomes…

Work Orders — By Week

WeekOrderZoneTaskPriorityStatusAssigned
Loading…

Week = ISO week of due date, current fallback order set. Live weekly rollup replaces this once Sheets is connected.

Period: wks last 52 weeks

Segment 1 — Manhour Savings

Weekly Walkabout — Manual (60 min fixed) vs GAIA Remote

Condition-based intervention, not calendar-driven — GAIA only calls for a physical visit when a threshold actually fires. Calibrated against published digital-twin benchmarks (e.g. Saudi Aramco's Khurais field twin: ~40% cut in inspection time moving from routine to condition-based monitoring).

Avg Plant Health Score by Tier (0–100)

Intensive, Medium, Ordinary tiers tracked weekly via AI vision scan (GAIA engine). Green line = GAIA-scheduled average; dashed = simulated baseline without smart scheduling.

Maintenance Compliance (% work orders closed on time)

Target SLA: ≥90% Intensive, ≥85% Medium, ≥80% Ordinary. Green line = GAIA Smart Scheduled average; dashed = baseline without automatic work-order generation.

Segment 2 — Water Savings

Irrigation Efficiency (smart-scheduled vs actual L/week)

Target: actual within ±10% of GAIA-scheduled volume. Overrun = alert triggered.

Water Usage — Fresh vs Harvested (L/week)

Placeholder data · 52 weeks. Live from Sheets when connected. Target: ≥40% harvested rainwater by Week 26.

Segment 3 — Landscape Value

Zone-wise Biodiversity Index (species detected / week)

Bioacoustic scan (Songmeter + Arbimon) at Floating Forest and L8 Forest Walk. Baseline: 12–14 species.

AQI — Microclimate (PM2.5 μg/m³) · Intensive Zones

BCA Green Mark target: <25 μg/m³ indoor-adjacent. Climate sensors at Floating Forest + L8.

Zone-wise PET (Physiological Equivalent Temperature) vs Indoor / Outdoor Ambient

PET = the air temperature at which an indoor setting would feel thermally equivalent to the real outdoor conditions being measured (Höppe 1999) — a standard urban-microclimate comfort index, not raw air temperature. Indoor benchmark ~24°C, a typical Singapore hotel A/C setpoint (published field studies find acceptable indoor comfort up to ~26.4°C). Outdoor ambient assumes unshaded street-level daily weather logs. Comfort bands: <23°C comfortable, 23–35°C warm, >35°C hot. Landscaped-zone figures are consistent with published Singapore sky-garden PET studies (shaded gardens measured <30°C against unshaded street readings in the high-30s).