Overview
Phone-Only Edition
Every track is solved using a single Android smartphone's own built-in hardware — camera, microphone, speaker, GPS, accelerometer, gyroscope, compass, proximity/ambient-light sensor, NFC, WiFi/Bluetooth/cellular radios, touchscreen, vibration motor, and the Android runtime itself. No drones, no external sensors, no Raspberry Pi/ESP32/Jetson/Arduino boards, no AR/VR headsets, no 3D-printers, no physical tags beyond paper/plastic QR codes, no LiDAR add-ons, and no wearables that aren't a phone on a lanyard. If a phone cannot already do it, the solution must simulate it in-app with on-screen data.
Global Rules
Phone-Only Constraint & Marking Scheme
Scoring
200 Marks + 10 Bonus per Track
Requirements Completeness
50
Each requirement (R-id) is worth 3–12 marks. A hard-coded or mocked claim earns 0 — only working code counts.
Presentation & Demo
50
3-slide pitch + video ≤ 7 min + live demo. Judges must understand the problem in ≤ 90 seconds.
Real-world Implementation & Feasibility
50
Would a PM, engineer, or worker install this with only a phone on Day 1 of the next project? Must work offline and cheaply. Field-trial videos prove real-environment execution (20+ pts of this score is the field video).
Innovation & Disruption
50
A novel fusion of phone sensors (e.g. IMU + camera + barometer = scaffold-instability detector) is rewarded over simple API-calling. Re-skinning an existing SaaS scores low.
10 Official Tracks
Choose a Track
Site Safety Sentinel
Turn a single phone into the site's only safety node — PPE detection, fall detection, exclusion-zone alerts, scaffold-tilt sensing, and voice safety logging.
View Track →GreenBuild Challenge
Scan a material, see its embodied carbon instantly, swap for a lower-carbon alternative, log waste, and export a Net-Zero Material Passport — all from a phone at lunch break.
View Track →Digital Twin Construction Site
Phone-captured photogrammetry, IFC-lite viewer, QR-based progress tagging, ARCore overlays, and a what-if scenario engine — the phone is the twin's interface.
View Track →Autonomous Site Inspection
Phone-video walkthroughs, on-device defect detection with severity measurement, design-deviation checks, and auto-generated QA PDF reports — no drones.
View Track →Smart Material & Logistics Optimizer
A mobile logistics control tower: predictive ordering, QR check-ins, readiness gates, dynamic slot assignment, live truck tracking, and KPI dashboards — no RFID or beacons.
View Track →Resilient Infrastructure Prototyper
GPS-driven flood/heat/seismic lookups, parametric resilience redesign, an on-phone structural check, and a paper-fold rapid-shelter configurator with AR verification.
View Track →Workforce Augmentation Lab
AR task overlays, an on-device voice field assistant, tacit-knowledge video capture, multilingual training, and accessibility — no AR/VR headset, just the phone.
View Track →Cost & Schedule Predictor
Photo/voice progress capture, an on-device forecast model, explainable drivers, live what-if scenario sliders, and recommendations — all from the field, in minutes.
View Track →Modular & Prefab Design Accelerator
Parametric module-splitting, transport-envelope checks, connection detailing, AR crane-sequence validation on a real cardboard build, and cost/handover export.
View Track →Urban Construction Impact Minimizer
Phone-based traffic counting, noise mapping via mic + GPS, vibration proxying, dust modeling, and a citizen-complaint pipeline in one unified dashboard.
View Track →Deliverables
Required for Every Track
Eligibility
- Teams of exactly 2 members
- 1 Android phone per team (API ≥ 27 / Android 8.1+, ARCore-eligible devices encouraged)