The Trimble GEDO IMS system, comprising the Trimble GEDO CE 2.0 track survey trolley and a high-precision IMU (Inertial Measurement Unit), provides a robust foundation for efficient track surveying and asset data collection.
The system is highly scalable, with additional components and sensors available to support a wider range of applications and to ensure optimal performance across diverse project requirements.
The Trimble GEDO IMS system, consisting of a track survey trolley Trimble GEDO CE 2.0 and a high precise IMU (inertial measurement unit), is the basis for running an efficient track survey and asset data collection.
Additional components and sensors can be added to the system to enable the usage of further applications and to guarantee the best performance.
GEDO IMS SYSTEM FEATURES
Trimble GEDO Profiler
The Trimble GEDO Profiler is a laser distance measurement unit equipped with an angle encoder, designed for fast and highly accurate measurement of objects along the railway track. It enables verification of track position at known reference points and measurement of distances to platforms and other fixed structures.
Measurements can be taken relative to the current track position or within an absolute coordinate system. The system also supports clearance verification and the capture of topographic points along the track.
When used as part of the Trimble GEDO IMS system, the Trimble GEDO Profiler references the track trajectory using absolute coordinates or relative reference points, supporting precise and reliable surveying workflows.
Trimble GEDO Scan
The integration of Trimble GEDO Scan with Trimble GEDO IMS creates a highly productive survey and mapping solution for capturing assets located close to the track.
The system generates a dense, absolutely referenced 3D point cloud, from which asset information can be extracted and clearance analyses can be performed. The data is also suitable for as-built surveying before, during, and after construction, making it ideal for BIM workflows.
Trimble GEDO GNSS
By combining the Trimble GEDO IMS system with Trimble GNSS technology, track surveys can be carried out without the need for reference points, using a defined GNSS reference system.
The collected data can be used to develop new or modified track designs, while reference points can also be established and measured during the survey run. This flexibility allows the system to continue supporting additional survey work throughout the reconstruction phase.
Structure
• Flexible track measuring trolley made of lightweight aluminum
• Can be adapted to different track gauges by utilising gauge extensions
Sensors
Gauge measurement
• Measuring range: -20 mm to +60 mm
• Accuracy: ± 0.3 mm
Superelevation (cant) measurement
• Measuring range: ± 9° (alternatively 10°)
• Accuracy: ± 0.5 mm
Odometer
Power supply
• Standard Trimble S-Series Lithium-Ion batteries
• Operating time > 12 h with two batteries
Applications
• As-built of existing railway lines
• Main line and siding tracks, connecting tracks, tramways, underground railways, and industrial tracks
• Clearance analysis
• Data acquisition for routing and modeling purpose
What does GEDO IMS measure?
GEDO IMS uses inertial measurement technology to capture track geometry parameters including gauge, cant (superelevation), track position, and alignment information.
What are the speed capabilities of GEDO IMS?
How does the inertial measurement system work?
The system uses inertial sensors and positioning technology to continuously measure track parameters while moving along the rail.
What are the main applications for GEDO IMS?
How accurate is GEDO IMS?
How is the data processed and analysed?
Can GEDO IMS operate in tunnels or areas with poor GPS coverage?
What training is required for operators?
How does GEDO IMS integrate with other GEDO products?
What output formats are available?
Data can be exported in standard formats compatible with common railway design and maintenance management systems.
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