NJU Hackathon 2026 · Product

BuYu 步语 — Walk the Story of a City

An AI walking companion that turns Nanjing's streets into a talking, personalized guided tour

会说话的历史现场 — BuYu pairs curator-verified local knowledge with real-time voice interaction, so a walk through the city becomes a living, personal narration instead of a static map route.

Demo Video

Hackathon live demo. Walking a real route with voice interaction on the phone, alongside the live scene-recognition view — the guide sees what you see and answers as you walk.

Product Walkthrough

One complete loop: pick a mood-matched route, walk it with an AI companion, mark discoveries along the way, and leave with an auto-generated walking journal ready to share.

Welcome — Your Walking Companion — Welcome

Home — route recommendations — Route picks

Route detail — Xuanwu Lake sunset line — Route detail

Walking — live map with AI voice — Walk + talk

Discovery — spot card en route — Discoveries

Plog — shareable walking journal — Shareable Plog

Poster

Hackathon campaign poster — 带上步步，立马出发.

What Makes It Different

Curator-Verified Knowledge

Narrations are grounded in verified local history and culture, not free-form model generation — the guide tells stories that hold up.

Real-Time Voice

Speech-to-speech interaction while walking: ask about what's in front of you and get an answer without breaking stride.

Every Walk Is Different

Routes adapt to mood, time, and companions; the same street yields a different narration each visit.

From Walk to Memory

Discoveries and thoughts along the way are auto-composed into a shareable illustrated walking journal (Plog).