A city-scale syste integrator needed a rock-solid Windows dashboard that turns raw air-quality telemetry into an eye-catching, always-on command-center display

The Challenge

Operators inside the control room had no single pane of glass that could cycle through neighborhood readings, flash alarms, and broadcast public messages in real time.

The solution had to run natively on inexpensive Windows signage PCs, render fluid visuals on multiple screens, and be packaged as a lightweight .exe so non-technical staff could install updates without IT intervention. Strict uptime targets and air-quality compliance standards left zero room for UI freezes or data hiccups.

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Infolitz architects built Envitus Qt App, a modular C++/Qt application engineered from the ground up for real-time, API-driven data flows. Using Qt Designer, our UX team translated Figma wireframes into high-fidelity widgets while backend engineers wired REST calls to every sensor gateway, binding values to the GUI through Qt’s signal–slot pattern for micro-second responsiveness.

A themed message bar, P-Box ticker, location selector, and alarm handler were encapsulated as reusable components, enabling rapid screen composition and future feature toggles. Styling was centralized with Qt Style Sheets, ensuring pixel-perfect branding across 4K displays. Squish-powered unit tests were baked into a containerised CI/CD pipeline, and every user story was tracked in Jira with Git-based branch policies for auditability.

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Impact

• Continuous, live visualization of air-quality indices city-wide—no browser refreshes or manual exports.
• Streamlined operator workflow: single hotkey cycles through dozens of locations with instant alarm pop-ups.
• Seamless .exe distribution slashed deployment effort for facilities teams across multiple jurisdictions.
  Result: the command center now makes faster, data-backed decisions and amplifies public-health transparency without ballooning infrastructure costs.

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