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Track Geometry Inspection Trolley RCI INS : Inertial Navigation | Full-Parameter Measurement
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|---|---|
| Categories | Track Geometry Measurement Tools |
| Brand | Railway Maintenance Equipment & Solutions |
| Model | RCI INS |
| Dimensions (L × W × H) | 1705 × 850 × 935 mm |
| Weight | ≤ 50 kg |
| Correction Time | 5 min |
| Measurement Principle | Fiber-optic gyro + accelerometer fusion (no external reference) |
| Output Reports | Over-limit report, static TQI, curve analysis, line inspection |
Detail Information
Overview
The RCI INS employs a closed-loop fiber-optic gyro inertial measurement unit (IMU) integrated with high-resolution displacement sensors to capture all geometric parameters—gauge, superelevation, twist, alignment, profile, versine, and mileage—without reliance on external references. Its drift-compensated algorithm maintains ±0.30 mm gauge and superelevation accuracy over continuous runs up to 5 km. The system operates at 1.5–3 km/h, making it ideal for confined environments such as tunnels, viaducts, and station approaches where satellite signals are unavailable. Data is processed onboard and exported in standard railway formats for TQI calculation and adjustment planning.
Key Components
The GNSS‑based railway track inspection system comprises the following components:
● T‑shaped trolley – carries the core INS and the Sleeper Identification and Positioning System
● Inertial Navigation System (INS) – provides core attitude and position measurements
● Sleeper Identification and Positioning System – identifies sleeper positions and assists in localization
● Data processing unit – a ruggedized military‑grade laptop with integrated data acquisition and analysis software
● High‑precision total station (optional) – coupled with the system for maximum absolute accuracy
● Dedicated software suites – support ballastless track fine‑adjustment and ballasted track adjustment workflows
RCI Series Track Geometry Inspection Trolley – Technical Specifications
Type | RCI INS(Inertial)Track Inspection Trolley | RCI GNSSTrack Inspection Trolley | RCI TWTrack Inspection Trolley | RCI GJY-TW-RB-1 (Class 0 Relative)Track Inspection Trolley | RCI GJY-T-4A (Class 1 Relative)Track Inspection Trolley | |||||||||||||||
Main Parameter | Gauge | ±0.30 mm | ±0.30 mm | ±0.30 mm | ±0.30 mm | ±0.50 mm | ||||||||||||||
Superelevation | ±0.30 mm | ±0.30 mm | ±0.30 mm | ±0.30 mm | ±0.50 mm | |||||||||||||||
Twist | ±0.50 mm | ±0.50 mm | ±0.50 mm | ±0.50 mm | ±0.70 mm | |||||||||||||||
Alignment & Profile | ±0.70 mm | ±0.70 mm | ±0.70 mm | ±0.70 mm | ±0.10 mm | |||||||||||||||
Versine | ±1.00 mm | ±0.10 mm | ±0.10 mm | ±0.10 mm | ±0.10 mm | |||||||||||||||
Alignment & Profile (30m) | ±0.70 mm | ±0.70 mm | ±0.70 mm | ±0.70 mm | — | |||||||||||||||
Alignment & Profile (300m) | ±3.00 mm | ±3.00 mm | ±3.00 mm | ±3.00 mm | — | |||||||||||||||
Lateral Deviation | ±3.00 mm | — | ±3.00 mm | — | — | |||||||||||||||
Vertical Deviation | ±2.50 mm | — | ±2.50 mm | — | — | |||||||||||||||
Mileage | ±0.10% | ±0.10% | ±0.10% | ±0.10% | ±0.10% | |||||||||||||||
Measurement Efficiency | 1.5–3 km/h | 4–5 km/h | 1–2 km/h | 4–6 km/h | 4–6 km/h | |||||||||||||||
Application Scopes
⚪ On CPIII / Fixed Peg Controlled Lines: Measurement of internal track parameters and external alignment parameters (both plane and elevation).
⚪ On CPI / Fixed Peg Controlled Ballastless Tracks: Long-wave fine adjustment.
⚪ On CPI / Fixed Peg Controlled Ballasted Tracks: Guidance for precise, digital tamping operations using tamping machines.
Technical Specifications
● Power: Internal Li-ion battery (8 h runtime)
● Weight: ≤28 kg (fully assembled)
● Dimensions: 0.65 × 0.32 × 0.95 m
● Protection Rating: IP54
● Operating Temp: –20 °C to +50 °C
● Compliance: EN 61010-1, TB/T 3354-2014
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