ADMA-Micro: Our smallest GNSS/Inertial Navigation Unit
The ADMA-Micro GNSS/inertial navigation unit achieves highly accurate measurements of position, velocity, angles, rotation rates or accelerations of a moving object. This GNSS/inertial navigation unit is small, rugged and low powered, making it ideal for a range of applications including:
Different designs make it possible to select the right design for a variety of applications:
- Autonomous vehicle (AV) operation
- ADAS Evaluation e.g. ACC, FCW, AEB (VRU, Car2Car), LSS (LDW, LKA)
- Simultaneous localization and mapping (SLAM)
- Validation of predictive vehicle safety functions with e.g. Camera, Radar, Lidar sensors
- Vulnerable Road Users (VRU) Tracking
- Comprehensive vehicle safety functions with connected sensor systems and V2X
Highlights of ADMA-Micro GNSS/Inertial Navigation Unit
- Ideal integrated solution in ADAS Targets and driving robots
- Our smallest GNSS/inertial navigation unit
- Advanced Kalman filter for sensor fusion
- Centimeter-level positional accuracy RTK (Real Time Kinematic)
- Real-time 3D position, velocity and attitude measurement up to 200 Hz
- Data latency < 1 msec
- Dual antenna support for highly accurate heading in static and low dynamic conditions
- Multi GNSS capability for a high position reliability
- Fully compatible with existing ADMA systems
- Embedded webinterface for easy configuration
- Ready for series production
Technical data of ADMA-Micro GNSS/Inertial Navigation Unit
ADMA-Micro
| COMPLETE SYSTEM | |
| GNSS constellations | GPS L1, L2 GLONASS L1, L2 BeiDou B1, B2 Galileo E1, E5 |
| Dual antenna | Optional |
| Position accuracy*2 | 0.01 / 0.20 / 0.60 / 1.20 / 1.50 m |
| Angle Measurement range roll / pitch / yaw | 60 ° / 60 ° / ± 180 ° |
| Velocity accuracy (RMS)*3 | 0.06 km/h RMS |
| Data output rate | 100 Hz / 200 Hz |
| Calculation latency | 1 msec |
| – | |
| SENSORS – GYROS | |
| Sensor Technology | 3 MEMS gyros |
| Measurement range*4 | ± 450 °/sec |
| Data output resolution | 0.0001 °/s |
| Bias repeatability typ. (1 σ) | 0.14 °/sec y-axis and z-axis 1.4 °/sec x-axis |
| In-run-bias typ. | 2.7 °/h x-axis 2.2 °/h y-axis 1.6 °/h z-axis |
| Noise (random walk) typ. | 0.15 °/√h x-axis and y-axis 0.2 °/√h z-axis |
| Scale factor | n.a. |
| Sensor bandwidth | 480 Hz x-axis and y-axis 590 Hz z-axis |
| – | |
| SENSORS – ACCELEROMETERS | |
| Sensor Technology | 3 MEMS accelerometers |
| Measurement range | ± 15 g |
| Data output resolution | 0.0001 g |
| Bias repeatability typ. | 15 mg |
| In-run-bias typ. (1 σ) | 12.75 µg x-axis and y-axis 13.66 µg z-axis |
| Noise (random walk) typ. | 90 µg /√Hz x-axis and y-axis 75 µg /√Hz z-axis |
| Scale factor (1 σ) | n.a. |
| Sensor bandwidth | 750 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, IPS (Indoor Positioning System) |
| Digital/Analog Input | 2x Digital / Analog (16 bit) e.g. Frequency, Brake trigger, … |
| Digital Output | 2x Signal Out e.g. PPS, Frequency, PPD Pulse per distance, … |
| Connector type | Samtec T1M-10-GF-DH Main Connector Samtec T1M-05-GF-DH Ethernet Connector |
| GNSS | 2x SMA GNSS Antenna connectors |
| – | |
| HARDWARE/MISCELLANEOUS | |
| Ordering Variants | Housed, OEM |
| Internal Memory | up to 8 GB |
| Power supply | 5 VDC typ. 7.5 W |
| Dimensions (W x L x H) | Housed version 78.0 x 61.0 x 26.9 mm OEM version 91.0 x 43.0 x 14.0 mm |
| Weight | 0.116 kg |
| Operating temperature | -20 to +75 °C |
*2 Depending on GNSS conditions, correction data and license model
*3 Typical values according to internal test standards with settled Kalman filter.
*4 Calibration range 0 °/sec to 200 °/sec