MAGUS

Inertial Reference System ADMA-G for vehicle dynamics testing

The Automotive Dynamic Motion Analyzer (ADMA) is more than just an inertial reference system and has been specially developed for vehicle dynamics measurements in the automotive sector. Equipped with DGNSS (Differential Global Navigation Satellite System) and fiber optic gyroscopes, this highly accurate inertial reference system defines new standards for vehicle dynamics applications in the automotive sector. Our inertial reference track system ADMA allows for constant measurement of acceleration, speed and position of moving vehicles in all three dimensional axes. Pitch, roll and course angles can be continuously and precisely measured with ADMA as well as course and side-slip angles as well as angular rates.

This makes the GeneSys’ ADMA inertial measurement unit (IMU) the best choice among inertial reference systems where challenging measurements with maximum accuracies are required.

Key Features

Measurement of vehicle motion in three axes, even during GNSS signal loss

Dynamic attitude and heading angle determination

Precise acceleration, speed, and position data due to extended Kalman filter

Precise position data with integrated WAAS/EGNOS-DGNSS receiver (<1m)

High precision position data (1cm) with internal RTK DGNSS receiver and GNSS Base Station

Robust inertial sensors and strap-down technology without moving parts

Highlights Inertial Reference Systems ADMA-G

Data output rate up to 1000Hz

Data output via 5 CAN bus interfaces and Ethernet

Configuration via Ethernet

Forwarding of GNSS correction data and relative data calculation (e.g. distance) via WiFi in real-time for multi-vehicle operation

GNSS synchronized DAQ synchronization signal, the high clock frequency

Inputs for the recording of analog signals

The output of GNSS raw data via Ethernet interface

Indoor GNSS interface

Dual GNSS antenna option

Multi GNSS capable (GPS, GLONASS, GALILEO, BEIDOU)

Data latency < 1ms

Compatible with all common steering and driving robots

Technical Information

COMPLETE SYSTEM
GNSS constellations	GPS L1, L2 GLONASS L1, L2 BeiDou B1, B21 Galileo E1, E51
Dual antenna	Optional
Position accuracy (1σ)*2	0.01 / 0.20 / 0.60 / 1.20 / 1.50m
Angle Measurement range roll / pitch / yaw	60° / 60° / ± 180°
Angle Measurement accuracy roll & pitch (1σ) / yaw (1σ) / sideslip (RMS)	0.01 / 0.015 / 0.05 °
Angle resolution	0.005°
Velocity accuracy (RMS)*3	0.03km/h
Position error after 10 / 30 / 60sec GNSS outage (RMS)*3	0.1 / 0.6 / 2.0m
Velocity error after 10 / 30 / 60sec GNSS outage (RMS)*3	0.01 / 0.03 / 0.06m/sec
Roll / Pitch angle error after 10 / 30 / 60sec GNSS outage (RMS)*3	< 0.01 / 0.01 / 0.01°
Heading angle error after 10 / 30 / 60sec GNSS outage (RMS)*3	< 0.01 / 0.01 / 0.01°
Braking distance accuracy without RTK (RMS)*3	0.05m
Roll / Pitch angle error after 10 / 30 / 60sec GNSS outage (RMS)*3	< 0.01 / 0.01 / 0.01°
Data output rate	50 / 100 / 200 / 250 / 500 Hz / (1000 Hz)*1
Calculation latency	1msec
SENSORS - GYROS
Sensor Technology	3 closed-loop fiber optic gyros
Measurement range	± 327°/s
Data output resolution	0.0001°/s
Bias repeatability typ. (1σ)	6°/h (0.0017°/s), optional 1°/h (0.00028°/s)
In-run-bias typ.	0.1°/h
Noise (random walk) typ.	0.047°/√h
Scale factor	0.05%
Sensor bandwidth	3200Hz
SENSORS - ACCELEROMETERS
Sensor Technology	3 servo accelerometers
Measurement range	± 5g / (± 10g)*1
Data output resolution	0.0001g
Bias repeatability typ.	< 1.0mg
In-run-bias typ. (1σ)	10ug
Noise (random walk) typ.	< 50ug /√Hz
Scale factor (1σ)	0.015%
Sensor bandwidth	1500Hz
INTERFACES
Ethernet	2x 1 GBit Data input/output, configuration and firmware update, driving robot data output, optional for relative data calculation and DGNSS routing. 1x 100 MBit GNSS Receiver; GNSS firmware update
CAN	1x CAN, 5x CAN1, 2b, 1Mbit Data output, input1
Serial	1x RS232 GNSS Receiver; DGNSS correction data input 1x RS232 GNSS Receiver; GPGGA Log output, IPS (Indoor Positioning System)
Digital/Analog Input	4x Digital / Analog (16bit) e.g. Frequency, Brake trigger, … 1x Digital / Analog (16bit) external velocity X
Digital Output	4x Digital TTL e.g. PPS, Frequency, PPD Pulse per distance, …
Connector type	Lemo
GNSS	2x TNC GNSS Antenna connectors
HARDWARE / MISCELLANEOUS
Ordering Variants	-
Internal Memory	up to 64GB
Power supply	9 to 32 VDC typ. 30W
Dimensions (W x L x H)	110 x 170 x 197mm
Weight	3.6kg
Operating temperature	-20 to +60 °C

*1 Optional
*2 Depending on GNSS conditions, correction data and license model
*3 Typical values according to internal test standards with settled Kalman filter.