Product Description
UM981
GPS/BDS/GLONASS/Galileo/QZSS All-constellation Multi-frequency RTK/INS Integrated Positioning Module
Unicore's new-generation proprietary RTK/INS integrated navigation module. The module integrates a high-speed floating-point processor and an RTK-dedicated coprocessor, enabling it to output IMU raw data at 100Hz and RTK data at 50Hz, respectively. The on-board MEMS chip and algorithm ensure continuous, high-quality positioning results in GNSS denied environments such as buildings, tunnels, overpasses, and shaded areas. With its high precision and performance, the UM981 is well-suited for surveying and precision agriculture, among other applications.
Features
Based on the new generation GNSS SoC - NebulasIV, which integrates RF, baseband, and high precision algorithm
All-constellation multi-frequency RTK engine and advanced RTK technology
Instant RTK initialization technology
60 dB narrowband interference suppression and interference detection
Heading2 technology to provide orientation information
STANDALONE single-station high-precision positioning technology
Supports B2b-PPP and E6-HAS
On-board MEMS integrated navigation and U-Fusion technology to ensure continuous positioning when loss of lock on GNSS signals
Technical Specifications
Performance Specifications
Channel 1408 channels, based on NebulasIV
Frequency GPS L1C/A, L1C, L2C, L2PY, L5
BDS B1I, B2I, B3I, B1C, B2a, B2b
GLONASS G1, G2, G3
Galileo E1, E5a, E5b, E6
QZSS L1C/A, L1C, L2C, L5
NavIC L5
SBAS L1C/A
Single Point PositioningRMS Horizontal: 1.5m
Vertical: 2.5m
DGPS RMS Horizontal: 0.4m
Vertical: 0.8m
RTK RMS Horizontal: 0.8cm 1ppm
Vertical: 1.5cm 1ppm
PPP?RMS? Horizontal: 5cm
Vertical: 10 cm
Tilt Measurement 10 mm 0.7 mm/°tilt
accuracy 99.9%
Data Update Rate 100 Hz IMU RAW Data
50 Hz RTK
Differential Data RTCM V3.X
Data Format NMEA-0183, Unicore
Physical Characteristics
Packaging 54 pin LGA
Dimension 17.0 × 22.0 × 2.6 mm
Weight 1.91 g ± 0.03 g
Environmental Specifications
Working temperature -40 °C 85 °C
Storage Temperature -55 °C 95 °C
Humidity 95% No condensation
Vibration GJB150.16A-2009, MIL-STD-810F
Shock GJB150.18A-2009, MIL-STD-810F
Communication Interface
3 x UART LVTTL
1 x I2C
1 x SPI
1 × CAN shared with UART3
Note: Items marked with are only supported by specific firmware.
For more information about unicore communications and anti-jamming, please feel free to contact us!
