RIEGLVMX -RAIL®

5.4 MHz pulse repetition rate,and 750 lines per second resulting
in up to 13,000 pts/m2
in approximately 3m range
at 80 km/h platform speed

475m
5.4MHzoptional

The RIEGL VMX-RAIL is a fully integrated
Mobile Laser Scanning System for track
mapping and clearance surveying. The
triple scanner system design allows forutmost efficient capturing of dense,accurate, and feature-rich data.
Take advantage of the VMX-RAIL for• accurate surveying in challenging
environments• reliable capturing of railway infrastructure, topology, and vegetation• platform speed up to 130 km/h
for operation during regular railschedules• reduction of scan shadows bytriple scanner system design• flexible camera options
to complement scan datawith high resolution imaging• data export to Third-Party
Rail-Processing Software
Packages

Triple Scanner Mobile Mapping System
Specifically Designed for Rail Application
Typical Applications• Rapid and Safe Data Capture with Minimal Disruption to Network Schedules • Rail Infrastructure Asset Management • As-Built Surveying• Track and Infrastructure Monitoring • Clash Detection Simulation and Clearance Analysis • Railway Planning and Engineeringwww.riegl.com

RIEGL VMX-RAIL

at a glance

VMX-RAIL Key Features• rugged measuring-head for reliable long-term
operation in harsh environments• equipped with 3 VUX-1HA22 High Accuracy Laser Scanners• optimized scanner orientation to increase the field of viewand to minimize scan shadows• unique crossed point cloud pattern along 360 deg of theclearance profile for improved feature extraction andsmall object detection• 5.4 MHz pulse repetition rate and 750 lines per second
resulting in up to 13,000 pts/m2 in approximately
3m range at 80 km/h platform speed

RIEGL VMX-RAIL scan data

State-of-the-Art
Track Mapping & Clearance Surveying
RIEGL VMX-RAIL Mobile Laser Scanning System•e nables the capture of the complete rail corridor,
including catenary systems, rail heads, and the complete
periphery, even signs orthogonal to running direction•h igh-end system performance supports rapid
data acquisition of dense point clouds• fully integrated and calibrated measuring head•o ptionally integrated camera system andopen inferfaces to various external sensors
RIEGL VMX-RAIL scan data

Functionalityproductextractionof rail axis

extractionof profilesclearance

track planningwithBentley OpenRail

withBentley OpenRailrail specific post processing with various third party software packages possible(shown example data: TopoDOT)

page 2 of 6Copyright RIEGL Laser Measurement Systems GmbH © 2022 – All rights reserved.

at a glance
RIEGL VMX-RAIL

at a glance
RIEGL VMX-RAIL

RIEGL VMX-RAIL Components and Setup
GNSS antenna

protective housing for enhanced
scan head protection (3x)RIEGL VUX-1HA22 laser scanner (3x)VMX-RAIL-MH
Measuring Headthermo-electronic elements
and forced-air cooling
RIEGL cameras(optional)
main electronics unit:
IMU/GNSS electronics,
distribution of power supply andsynchronization signals, camera
control unit, control electronics
for thermo-electric elements

IMU

crane hookshock absorbers

RIEGL VMX-RAIL System Block Diagram

VMX-RAIL-RM Roof Mount

RIEGL VMX-RAIL
System Components• VMX-RAIL-MH:
temperature stabilizedmeasuring head equippedwith 3 RIEGL VUX-1HA22 scanners• VMX-RAIL-CR:
The control rack is the central unit
for system operation and data recording.
An uninterruptible power supply (UPS)
ensures failsafe system operation.
• VMX-RAIL-RM:
shock proof mounting element• VMX-RAIL-DMI:
optical DMI or integration ofcompatible on-board rotary wheel encoder• Options:prepared for integration of up to 6 cameras

Copyright RIEGL Laser Measurement Systems GmbH © 2022 – All rights reserved.

page 3 of 6

at a glance
RIEGL VMX-RAIL

at a glance RIEGL VMX-RAIL

all dimensions in mm

Weight and Dimensions

WeightDimensions (L x W x H)

VMX-RAIL-MH Measuring HeadVMX-RAIL-RM Roof Mount
VMX-RAIL-CR Control Rack
VMX-RAIL-MC Main Cable

95 kg
30 kg
76 kgapprox. 2 kg per meter

654 x 1456 x 406 mm
837 x 1340 x 412 mm
min. 500 mm stack space requirement in a 19” rack
tailored cable length

RIEGL VMX-RAIL-CR• 19 inch rack based control unit
for fixed installation in a rail car• The VMX-RAIL Main Cable is connectedwith a Harting® connector to the rear of
the VMX-RAIL Control Rack.

RIEGL VMX-RAIL-CM Control Module* 4 rack units
AC/DC power supply* 1 rack unit
scan and image data acquisition computer* 4 rack units

uninterruptible power supply* 2 rack units

all dimensions in mm* 1 rack unit ^= 44,5 mm

page 4 of 6Copyright RIEGL Laser Measurement Systems GmbH © 2022 – All rights reserved.

RIEGL VMX-RAIL

at a glance

RIEGL VMX-RAIL Technical Data
475m max.

measurement range

optional

5.4MHzoptional
digital camera

pulse repetition
rate (peak)

online waveform
processing

multipletarget capability

eye safe operation
at Laser Class 1

VMX-RAIL Scanner Performance
Laser Class 1 (Class 1 Laser Product according to IEC 60825-1:2014)

Laser Class

900 kHz

1.5 MHz3.75 MHz

5.4 MHz2) 3)

475 m

370 m

235 m

235 m

Max. Range, Target Reflectivity  ≥ 10% 2) 3)

170 m

130 m

85 m

85 m

151574

Effective Measurement Rate1)

Max. Range, Target Reflectivity  ≥ 80%
Max. Number of Targets per Pulse
Minimum Range

1 m @ PRR ≥ 1MHz, 1.2 m @ PRR < 1MHz

Accuracy 4) 6) / Precision 5) 6)

5 mm / 3 mm

Field of View

360° "full circle"

Scan Speed (selectable)

up to 750 scans/sec1) Rounded values, selectable by measurement program.
2) Typical values for average conditions. Maximum range is specified for flat targets with size in excess of the laser beam diameter, perpendicularangle of incidence, and for atmospheric visibility of 23 km. In bright sunlight, the max. range is shorter than under overcast sky.
3) Ambiguity to be resolved by post-processing with RiUNITE software.
4) Accuracy is the degree of conformity of a measured quantity to its actual (true) value.
5) Precision, also called reproducibility or repeatability, is the degree to which further measurements show the same result.
6) One sigma @ 30 m range under RIEGL test conditions.

IMU/GNSS Performance 7)
Position Accuracy (absolute)typ. 20 - 50 mm

Roll & Pitch Accuracy

0.005°

Heading Accuracy

0.015°

7) One sigma values, no GNSS outage, with DMI option, post-processed using base station data.

General Technical Data
VMX-RAIL-CR Power Supply Input Voltage

230 V AC (optionally 110 V AC)

Uninterruptible Power Supply (UPS)

failsafe operation by bridging power supply gaps
for approx. 15 minutes in scanning mode and 35 minutes in standby mode

VMX-RAIL-MH Input Voltage

24 V DC (powered via VMX-RAIL-CR)

VMX-RAIL-CR typ. Power Consumption

system operation without cameras
additional power consumption per camera

typ. 750 W / max. 1020 W
typ. 6 W / max. 30 W

Mounting Interface

4 x M24 threads- VMX-RAIL-MH- VMX-RAIL-RM- shock absorbers between RM and MH- crane hooks

aluminium sand cast, powder-coated, with internal thermal insulation
aluminium anodized
wire rope springs
stainless steel

Protection Class VMX-RAIL-MH

IP65

Temperature Range-10°C up to +40°C (operation) / -20°C up to +50°C (storage)

Interface VMX-RAIL-CR to VMX-RAIL-MH

single main cable for power & data interface with robust Harting® connectors

Humidity Monitoring

3x desiccant cartridges with humidity indicator, valve for nitrogen purge

Humiditiy Controlling

active dehumidification unit

Copyright RIEGL Laser Measurement Systems GmbH © 2022 – All rights reserved.

page 5 of 6

RIEGL VMX-RAIL

at a glance
Data Interfaces
VMX-RAIL-MH

6 x multi-purpose ports supporting complementary camera systems and additional devices, each with- trigger pulse- precise time stamping of exposure pulse- NMEA data
- PPS
- LAN 1GigE- power 24 V DC, max. 30 W

VMX-RAIL-CR
1 x DMI input (for distance measuring indicator; odometer)
1 x NAV RS-232 (COM port for IMU/GNSS for RTK, SBAS)
1 x NAV RS-232 (COM output for synchronization of external device)
1 x AUX power supply output (+28V DC, max 30W)
1 x rack-based industrial PC with standard interfaces:-) LAN, 1000 Mbit/sec (e.g. to connect additional computer)-) USB 3.0 (e.g. image data transfer from FLIR Ladybug® 5)-) display port-) HDMI
3 x removable double SSD drive carrier with a total of 4.5TB swappable disc space

VMX-RAIL-MC (single cable connection between VMX-RAIL-MH and VMX-RAIL-CR) with 10 GigE Link

customized integration example

RIEGL VMX-RAIL

equipped with 3 VUX-1HA22 laser scanners and RIEGL cameras (optional)

RIEGL Cameras (optional) 1)
max. numbers max. frames 2)
resolutionof cameras
per second [px (H) x px (V)]5 MP CMOS 3)

pixel size[µm]lens focal
length [mm]Field of View 4)(FOV)6202464 x 2056

3.45580.7° x 70.7°

12 MP CMOS

3)684112 x 3008

3.458 / 1683.1° x 65.9° / 47.8° x 35.9°

24 MP CMOS

3)

64.55328 x 4608

2.748.579.5° x 71.5°

1) The combination of different cameras is possible.
2) Maximum frame rate of a single camera operated with 8-bit color depth. Use of multiple cameras have effects on maximum frame rate.
3) A user defined “Region of Interest” can be defined during data acquisition, resulting in a reduction of the FOV and the resolution. This may help to reduce image file sizes on theone hand and to further increase frame rates on the other hand.
4) Nominal values (actual values may be slightly different due to manufacturing tolerances).

Copyright RIEGL Laser Measurement Systems GmbH © 2022– All rights reserved.
Use of this data sheet other than for personal purposes requires RIEGL’s written consent.
This data sheet is compiled with care. However, errors cannot be fully excluded and alternations might be necessary.

www.riegl.com
Brochure, VMX-RAIL 2022-11-29