Major Bridge

A pilot project for unmanned automated inspection was launched at a 2,213‑meter twin‑tower, single‑span steel truss suspension bridge, taking advantage of emerging low‑altitude economy opportunities.
With its complex structure, traditional manual patrols relied on foot‑based inspections—a time‑consuming, labor‑intensive process with high safety risks.

Solution

Intelligent inspection systems were deployed at key locations on the bridge to establish routine automated inspection capabilities:

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  Unmanned Operation

  The system automatically handles takeoff, patrol, return, and charging—no manual intervention required.

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  High-Frequency Coverage

  Capable of executing over 10 automated inspections per day, enabling around‑the‑clock monitoring of bridge structures.

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  Fine‑Grained Detection

  Equipped with high‑zoom and thermal imaging to precisely identify defects in critical components such as steel trusses, towers, and anchor blocks.

Key Results

• 10 times faster in efficiency

  Single‑inspection time reduced from 2–4 hours to under 20 minutes

• 10 times per day of inspection rounds

  Single‑inspection time reduced from 2–4 hours to under 20 minutes

• Save labor costs by 60%

  Daily inspection personnel reduced by 3 staff.

• Say bye to foot‑based patrols

  Set a new benchmark for intelligent maintenance of long‑span bridges.