Multi‑Radar Stitching Technology

Technical Principle

Millimeter-wave radars are deployed at multiple nodes along the expressway. Edge computing units achieve multi-radar spatial-temporal synchronization, coordinate alignment, target association, and trajectory stitching, building a long-distance, seamless, all-weather full-coverage sensing network. Combined with reliable communication and edge intelligence, this forms an expressway holographic section system featuring “full-scale sensing + powerful computing + reliable communication”. It continuously reconstructs complete vehicle trajectories along the entire section, accurately monitoring traffic volume, speed, congestion, incidents, and abnormal behavior, providing high-precision sensing support for smart expressways, proactive control, emergency response, and digital twins.

Key Features

1. Long-distance seamless coverage – Multiple radars linearly deployed along the expressway, stitching together to achieve breakpoint-free full-coverage sensing and holographic monitoring of long sections.

2. High-precision trajectory stitching – Multi-radar spatial-temporal synchronization, coordinate alignment, and target association generate continuous vehicle trajectories from entry to exit.

3. All-weather reliable sensing – Millimeter-wave radar unaffected by rain, fog, strong light, or night, ensuring 24/7 reliable detection.

4. Low-latency edge processing – Data fusion and trajectory stitching completed at the edge, enabling second-level incident detection and response.

5. Support for holographic section applications – Provides core sensing capabilities for expressway digital twins, traffic flow monitoring, congestion warning, and emergency response.