Bridge Inspection

Painpoints

Traditional bridge inspections often necessitate workers climbing the structures or utilizing aerial work platforms, presenting significant safety hazards, particularly under adverse weather conditions.
Manual inspections can be time-intensive, especially for expansive bridges, leading not only to prolonged durations but also potential traffic disruptions.
Bridge inspections demand considerable manpower and specialized equipment, such as aerial work platforms and hanging baskets, which escalate the costs.
Manual inspections might not encompass all bridge areas, particularly those that are challenging to access, potentially resulting in incomplete data and compromising the accuracy of the inspection outcomes.
The effective analysis and processing of extensive data collected remain a challenge. Conventional methods typically depend on manual recording and analysis, which are inefficient and susceptible to errors.

Advantages

Enable the inspection of hard-to-reach areas, such as high altitudes or confined spaces, without endangering inspection personnel.
Expedite the coverage of extensive bridge structures through automated mission planning or manual control, diminishing inspection durations and eliminating coverage gaps.
Lower inspection costs and enhance inspection frequency with user-friendly and economical drone solutions.
Drones, outfitted with high-resolution cameras and additional sensors, can detect minute details, such as fine cracks, corrosion, and other structural issues. This data can be further analyzed using image processing software to heighten inspection precision.
Produce high-quality data that can be archived and scrutinized for ongoing bridge health monitoring. By comparing data across different time points, it is feasible to detect trends in the bridge’s structural integrity and preemptively alert to potential issues.

Bridge Visual Inspection

The Matrice 400, equipped with the Zenmuse P1, captures high-resolution images of bridge structures and key components to identify cracks or signs of deterioration. With integrated rotating LiDAR and mmWave radar, it provides a 360-degree obstacle avoidance sensor, enabling closer inspections without compromising flight safety.

Drone Platform

DJI Matrice 400

Weight : 9740±40 g (with batteries)

Max Takeoff Weight: 15.8 kg

Max Payload: 6 kg

Max Flight Time: 59 minutes

MMax Horizontal Speed: 25 m/s

Environment Adaptability:IP55 rating, max takeoff altitude 7000 m, operating temperature -20° to 50° C (-4° to 122° F) Compatible with the Zenmuse H30 Series, Zenmuse L2, Zenmuse P1, Zenmuse V1, Zenmuse S1, and third-party payloads.

Sensing System: Omnidirectional binocular vision system (surround view provided by full-color fisheye vision sensors), horizontal rotating LiDAR, upper LiDAR, downward 3D infrared range sensor, and six-direction mmWave radar

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Payload And Software

Zenmuse P1

45 MP Full-frame camera. Global Mechanical Shutter Shutter Speed 1/2000 Seconds. 3-axis Stabilized Gimbal Smart Oblique Capture.

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DJI Pilot 2

Ground control

DJI Terra

Modeling and flight mission plan

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Workflow

Mission Planning:
- – Using third-party software, plan an inspection waypoint route based on bridge 3D models or use live mission recording with AI spot checking in the DJI Pilot 2 to create a routine inspection route.
Data Collection:
- – Import the flight route into Pilot 2 and execute the mission. Turn on the RTK for better results.
Data Processing:
- – Reconstruct vertical 2D models through DJI Terra. Improve model texture by editing it using DJI Modify.
Data Analysis:
- – Analyze the inspection photos or detail modes to identify and locate any defects. Document the required maintenance using the images or model findings.

Bridge Digital Twin Asset Management

The Matrice 400, when equipped with the Zenmuse P1, can generate high-resolution 3D models for detailed visual inspection. With the Zenmuse L3 LiDAR attached, the Matrice 400 performs laser point cloud digitization to model bridges accurately.
Utilize DJI Terra to produce both photogrammetry and point cloud models. Enhance your photogrammetry models by editing and correcting textures with DJI Modify.