Article Details

Abstract

To address the issues of low efficiency, high risk, and limited coverage in traditional bridge inspection methods, this paper designs a modular intelligent inspection vehicle based on the STC89C52RC microcontroller. The vehicle adopts a “smart vehicle + steel-wheeled vehicle” configuration and utilizes an innovative magnetic traction mechanism to connect the two units, enabling flexible movement. The chassis is driven by JGY-370 turbine-worm gear DC reduction motors with a power-off self-locking function, ensuring precision and safety during movement and parking on bridge slopes. The vehicle is equipped with Bluetooth and infrared modules, supporting dual-mode remote control via Bluetooth and infrared. Testing shows that the vehicle can operate smoothly at a speed of approximately 0.05 m/s. To verify its engineering practicality, the vehicle is deployed on a corridor surface with a TST3828E acquisition instrument for mobility testing. The collected structural vibration signals are compared with fixed measurement results. Data analysis indicates that the first- and second-order frequencies of the structure obtained by both methods are highly consistent, which confirms the reliability of the mobile inspection vehicle data.

Keywords

bridge inspection; intelligent vehicle; mobile inspection; corridor frequency acquisition; vibration frequency

References

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About the authors

Li Ziqun (2005-), male, Han ethnicity, from Jinan, Shandong Province, is currently pursuing a bachelor's degree. His research interests include mechanical engineering, small-scale engineering equipment, and special engineering machinery.