The latest articles on DEV Community by Arnab Dutta (@arnab_dutta_8c6739583bf34). https://dev.to/arnab_dutta_8c6739583bf34 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4001571%2F0d6402d7-2eee-4ae2-9a4c-64d34ac726a7.png https://dev.to/arnab_dutta_8c6739583bf34 en Arnab Dutta Fri, 28 Aug 2026 17:09:35 +0000 https://dev.to/arnab_dutta_8c6739583bf34/heatsentry-combating-urban-heat-with-multi-agent-ai-and-google-gemini-p74 https://dev.to/arnab_dutta_8c6739583bf34/heatsentry-combating-urban-heat-with-multi-agent-ai-and-google-gemini-p74 <h2> Building HeatSentry : Multi-Agent Urban Heat Resilience with Google Gemini. </h2> <blockquote> <p>*Disclaimer: I created this piece of content for the purpose of entering the Google #AllThingsAgentic Hackathon .</p> </blockquote> <p>Extreme heat is among the deadliest climate hazards facing cities. In Phoenix, asphalt temperatures frequently exceed 140°F (60°C). </p> <p>To tackle this, I built HeatSentry—an autonomous multi-agent command system powered by Google Gemini models and grounded in FortyGuard’s 2-meter pedestrian thermal mesh API.</p> <h2> What It Does </h2> <p>HeatSentry automates municipal heat response through 10 collaborative AI agents that monitor, negotiate, and dispatch physical interventions in real time:</p> <ul> <li> <strong>Cool Pavement Routing</strong>: Dispatches titanium-dioxide reflective coating trucks to high-heat corridors.</li> <li> <strong>Mobile Misting Fleets</strong>: Deploys high-pressure evaporative cooling trailers to transit hubs.</li> <li> <strong>Grid Peak Shedding</strong>: Curtails commercial HVAC loads during thermal peaks.</li> <li> <strong>OSHA Labour Shield</strong>: Dynamically enforces mandatory work/rest cycles for outdoor workers based on Wet-Bulb Globe Temperature (WBGT).</li> <li> <strong>Vulnerable Citizen Sentinel</strong>: Directs emergency hydration and outreach to high-risk zones.</li> </ul> <h2> Google AI &amp; Agentic Stack </h2> <ul> <li> <strong>10-Agent Negotiation Mesh</strong>: Uses game-theoretic Nash bargaining consensus with a deterministic supervisor circuit breaker to resolve resource conflicts.</li> <li> <strong>Google Gemini 3.7 Flash</strong>: Powers the real-time Incident Copilot via Server-Sent Events (SSE) token streaming.</li> <li> <strong>Google Gemini 3.1 Flash Audio</strong>: Synthesizes instant 24kHz neural voice emergency alerts in English, Spanish, and Arabic.</li> <li> <strong>Google Gemma (<code>gemma-2-9b-it</code>)</strong>: Delivers on-device field triage with sub-20ms edge response.</li> <li> <strong>SHA-256 Block Ledger</strong>: Immutably records every dispatch decision for FEMA Category B audit compliance.</li> </ul> <h2> Links </h2> <p><a href="https://ais-pre-ul2mlgbobcxgg7tkb2lkrl-305446503352.asia-southeast1.run.app" rel="noopener noreferrer">Live Application</a><br> <a href="https://ais-pre-ul2mlgbobcxgg7tkb2lkrl-305446503352.asia-southeast1.run.app" rel="noopener noreferrer">https://ais-pre-ul2mlgbobcxgg7tkb2lkrl-305446503352.asia-southeast1.run.app</a></p> <p>#AllThingsAgenticHackathon #GoogleAI #ClimateTech #AI</p> allthingsagentichackathon googleaichallenge ai showdev