Urban Rail Transit Engineering Comprehensive Inspection Vehicle Based on Binocular Vision Positioning and Synchronous Triggering

Abstract

Objective Most urban rail transit tunnel and track work inspection still adopt conventional manual inspection method, which calls for effective improvement on inspection efficiency and accuracy. Method A comprehensive inspection vehicle for urban rail transit track work (abbreviated as CIV) based on binocular positioning and synchronous triggering technology is proposed. The CIV system architecture is expounded, as well as the functionality of synchronous positioning module, power supply module and human-machine interaction module, and the recognition algorithm used in track work defect and fault detection. The CIV positioning calculation and synchronous control technology are introduced, the practical application effect in urban rail transit engineering is analyzed, and the technical advantages are summarized. Result & Conclusion The CIV can complete the inspection work of urban rail transit line tunnel and track within 2 hours, and carry out intelligent comprehensive detection of many kinds of defects and faults. Compared with manual inspection, the CIV accuracy rate is increased by 60%, and the inspection cost is reduced by 30%.

Keywords

• urban rail transit
• track work inspection
• comprehensive inspection vehicle
• binocular positioning technology
• synchronous triggering technology