S.A.A.R.T.H.I. Documentation¶
System for Autonomous Assessment of Railway Track Health Infrastructure
Welcome to the official documentation for S.A.A.R.T.H.I. (RailwayMitra) — ERIC Robotics' autonomous track geometry inspection system.
Internal Document
This documentation is for authorised ERIC Robotics personnel and approved client representatives only.
Quick Links¶
| I want to... | Go to |
|---|---|
| Set up the system for the first time | Unboxing & Setup |
| Run an inspection | Field Operation |
| Export inspection data | Data Export & Reports |
| Fix a problem | Troubleshooting |
| Check a spec | Technical Specifications |
What is S.A.A.R.T.H.I.?¶
S.A.A.R.T.H.I. is an autonomous track geometry inspection system that measures critical rail parameters including:
- Gauge — distance between inner faces of rail heads
- Cross-level — relative elevation difference between left and right rails
- Alignment / Versine — lateral deviation from ideal track geometry
- Twist — rate of change of cross-level over a defined base length
- Surface / Unevenness — vertical profile irregularities
The system uses a sensor fusion architecture combining laser rail profilers, IMU, wheel encoders, and GNSS to achieve continuous, high-accuracy measurements at inspection speeds.
System at a Glance¶
| Parameter | Value |
|---|---|
| Measurement method | Autonomous, contact-based |
| Key sensors | Laser profiler, IMU, Encoder, GNSS |
| Inspection speed | Up to 30 km/h |
| Gauge accuracy | +/- 0.5 mm |
| Cross-level accuracy | +/- 0.5 mm |
| Data output | MCAP, CSV, Format C reports |
| Power | Dual-battery hot-swap |
| Weight | TBD |
Note
Update specifications with finalised values as TRL milestones are reached.
Documentation Structure¶
- Getting Started — System overview, unboxing, setup, and first run
- Operations — Day-to-day field usage procedures
- Software — Dashboard, data export, and firmware management
- Maintenance — Upkeep, troubleshooting, and parts
- Reference — Specs, safety, glossary, and FAQ