ADMA-Slim mini GNSS/inertial navigation system: If size and weight matters
The new full-fledged ADMA-Slim GNSS/inertial navigation system has been specially developed for applications with space or weight restrictions. It is smaller, lighter and more compact, without limitations in functionality or quality of measurement data. The inertial reference system ADMA-Slim is the perfect choice for applications in motorcycles, overrunnable platforms for GSTs (Guided Soft Targets) or VRUs (Vulnerable Road Users such as pedestrians or cyclists), for example.Â
ADMA-Slim inertial navigation system is based on the proven ADMA technology for centimeter accuracy in positional data acquisition. It delivers precise, smooth and consistent signals even when GNSS reception is poor.
Applications
One of the key advantages of the ADMA is its excellent suitability for installation on overrunable platforms. Unlike many other inertial devices, the ADMA does not require a lengthy initialization process. The stability of the Kalman filter guarantees reliable results without the need for reinitialization even after an overrun of the platform.
Additionally, the ADMA inertial navigation system is also suitable for all other testing applications, such as VD (vehicle dynamics) or ADAS (Advanced Driver Assistance Systems) testing. Its robust design and stable performance make it a versatile tool for various testing scenarios.
Technical data for ADMA-Slim can be found in the table below or in the data sheet.
Properties
- Fullfledged GNSS/inertial system with proven ADMA technology
- Extremly small, lightweight and convenient size
- Measuring of vehicle movements in all three measuring axes, even with GPS outage
- Robust MEMS inertial sensors in strapdown technology with 5, 10 or 15 g
- Improved satellite reception via Multi-GNSS (GPS, GLONASS, GALILEO, BEIDOU)
- Also as Dual Antenna version available
- Mounting with high power magnets possible
- Direct attachment of the GPS antenna to the inertial sensor technology possible
- Available in a waterproof housing or as unhoused version for OEMs
- Compatible with all common overrunnable platforms
- Optional extendable, e.g. with RTK or DELTA option
ADMA-Slim inertial reference system is available in three different versions
- Standard version with 7 LEMO connectors in a waterproof housing
- Single connector version with MIL connector in a waterproof housing
- Unhoused OEM version
ADMA-Slim is available either with an L1 GNSS receiver with SBAS and DGNSS correction data reception capability or with an L1/L2 GNSS receiver with RTK2 correction data reception capability, allowing for position accuracy down to the centimetre.
ADMA-Slim applicable in jet skis ADMA-Slim applicable in snowmobiles 
ADMA-Slim applicable in All Terrain Vehicles 
ADMA-Slim applicable in VRU 
ADMA-Slim applicable in overrunnable platforms
Technical data
ADMA-Slim
| COMPLETE SYSTEM | |
| GNSS constellations | GPS L1, L2 GLONASS L1, L2 BeiDou*1 B1, B2 Galileo*1 E1, E5 |
| Dual antenna | Optional |
| Position accuracy (1σ)*2 | 0.01 / 0.20 / 0.60 / 1.20 / 1.50 m |
| Angle Measurement range roll / pitch / yaw | 60 ° / 60 ° / ± 180 ° |
| Angle Measurement accuracy roll & pitch (1 σ) / yaw (1 σ) / sideslip (RMS) | 0.02 / 0.05 / 0.15 ° |
| Angle resolution | 0.005 ° |
| Velocity accuracy (RMS)*3 | 0.04 km/h |
| Position error after 10 / 30 / 60 sec GNSS outage (RMS)*3 | 0.4 / 5.0 / 40.0 m |
| Velocity error after 10 / 30 / 60 sec GNSS outage (RMS)*3 | 0.06 / 0.5 / 1.5 m/sec |
| Roll / Pitch angle error after 10 / 30 / 60 sec GNSS outage (RMS)*3 | 0.05 / 0.15 / 0.30 ° |
| Heading angle error after 10 / 30 / 60 sec GNSS outage (RMS)*3 | 0.05 / 0.15 / 0.30 ° |
| Braking distance accuracy without RTK2 (RMS)*3 | 0.05 m |
| Data output rate | 50 / 100 / 200 / 250 / 500 Hz / (1000 Hz)*1 |
| Calculation latency | 1 msec |
| – | |
| SENSORS – GYROS | |
| Sensor Technology | 3 MEMS gyros |
| Measurement range | ± 450 °/s |
| Data output resolution | 0.0001 °/s |
| Bias repeatability typ. (1 σ) | 0.2 °/s |
| In-run-bias typ. | 6 °/h |
| Noise (random walk) typ. | 0.3 °/√h |
| Scale factor | 0.2 % |
| Sensor bandwidth | 330 Hz |
| – | |
| SENSORS – ACCELEROMETERS | |
| Sensor Technology | 3 MEMS accelerometers |
| Measurement range | ± 5 g / (± 15 g)*1 |
| Data output resolution | 0.0001 g |
| Bias repeatability typ. | 4 mg |
| In-run-bias typ. (1 σ) | 32 µg |
| Noise (random walk) typ. | 50 µg /√Hz |
| Scale factor (1 σ) | 0.2% |
| Sensor bandwidth | 330 Hz |
| – | |
| INTERFACES | |
| Ethernet | 1x 1 Gbit Data input/output, configuration and firmware update, driving robot data output, optional for relative data calculation and DGNSS routing. |
| CAN | 1x CAN 2b, 1 Mbit Data output, input*1 |
| Serial | 1x RS232 GNSS Receiver; DGNSS correction data input 1x RS232 GNSS Receiver; GPGGA Log output, IPS (Indoor Positioning System) |
| Digital/Analog Input | up to 4x Digital / Analog (16 bit) e.g. Frequency, Brake trigger, … |
| Digital Output | up to 4x Digital TTL e.g. PPS, Frequency, PPD Pulse per distance, … |
| Connector type | Lemo; SC; Samtec |
| GNSS | 2x SMA GNSS Antenna connectors |
| – | |
| HARDWARE/MISCELLANEOUS | |
| Ordering Variants | Lemo, SC, OEM |
| Internal Memory | up to 64 GB |
| Power supply | 9 to 32 VDC typ. 15 W |
| Dimensions (W x L x H) | Lemo version 130 x 186 x 47 mm SC version 130 x 194 x47 mm OEM version 125 x 148 x 31 mm |
| Weight | 1.5 kg |
| Operating temperature | -20 to +60 °C |
*2 Depending on GNSS conditions, correction data and license model
*3 Typical values according to internal test standards with settled Kalman filter.