A Railway Track Geometry Measuring Trolley System Based on Aided INS

Area of Science:

• Geomatics Engineering
• Railway Engineering
• Surveying Technology

Background:

• Accurate railway track geometry measurement is crucial for safety and maintenance.
• Conventional methods using trolleys and total stations lack efficiency and precision.
• There is a need for rapid, non-disruptive track surveying solutions.

Purpose of the Study:

• To develop an innovative track geometry measuring system.
• To improve surveying efficiency and accuracy for railway infrastructure.
• To provide a modular system adaptable to various track surveying tasks.

Main Methods:

• Integration of an inertial navigation system (INS) with geodetic surveying apparatus.
• Design of a modular track geometry measuring trolley (TGMT) system based on aided INS.
• Development of a data processing concept and workflow for mobile surveying.

Main Results:

• The aided INS-based TGMT significantly improves surveying efficiency in mobile mode.
• The system demonstrates effective performance in various track geometry surveying experiments.
• The modular design allows configuration for diverse tasks like slab track adjustment and deformation measurement.

Conclusions:

• The proposed aided INS-based TGMT offers a novel and efficient solution for railway track geometry surveying.
• The system enhances measurement accuracy and surveying efficiency without interrupting traffic.
• The design and data processing workflow provide a valuable reference for future implementations.