StrollerPulse: The Screen-Free Shock & Terrain Watchdog Powered by Prior Labs TabPFN
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass What I Built When we take an infant out in a stroller or lace up our running shoes to head outdoors, mapping apps show street names, transit lines, and 2D GPS tracks. They give you zero insight into the physical reality under wheel and foot : For Strollers & Wheelchairs: Broken cobblestones, tree-root heaves,…
This article discusses StrollerPulse, an open-source stroller and wheelchair monitoring system designed to alert users about dangerous terrain while keeping them disconnected from their smartphones. The system uses the accelerometer and gyroscope sensors in smartphones to measure vertical ground reaction forces at a rate of 50 times per second.
These data points are then analyzed using Prior Labs' TabPFN, a revolutionary tabular foundation model that processes the information and delivers real-time voice cues through earbuds or phone speakers.
Key features of StrollerPulse include:
- Real-time monitoring of infant spinal shock severity based on the ISO 2631 vibration evaluation standard
- Grass Cushion Index: A cumulative metric tracking the percentage of a journey spent on soft earth
- Desktop Physics Simulator: Reviewers can test various terrain profiles with real-time waveform canvas animation
- Sunlight Mode: A high-contrast theme optimized for readability under direct midday sunlight
- Screen-Free Audio Engine: Powered by the native Web Speech API with strict debounce and state transition hysteresis
StrollerPulse aims to protect babies from violent chassis vibrations and shield runners' joints from hard pavement by encouraging users to rely on their senses rather than screens. The system is open-source, with the entire codebase available on GitHub under the MIT License. The backend is built using Python 3.11+, FastAPI, Prior Labs' TabPFN, PyTorch CPU, Scikit-learn, and SciPy.
The frontend utilizes Vanilla HTML5, CSS3 with a nature-inspired obsidian theme, Leaflet.js for mapping, Web Speech API, and Canvas API. The system can be deployed on Render using the provided render.yaml and Dockerfile.
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