Place of Origin:
China
Brand Name:
Liocrebif
Certification:
GJB 9001C-2017
Model Number:
LKF-MSI300
Introduction
The MSI300 MEMS Integrated Navigation System is a high-precision, high-reliability, and cost-effective MEMS inertial navigation system designed for navigation, control, and measurement applications in vehicles, ships, drones, and other similar platforms.
The MSI300 series integrated navigation system integrates high-performance MEMS gyroscopes, MEMS accelerometers, and GNSS satellite receiver chips internally. By sensing the Earth's angular velocity and acceleration, it statically self-aligns to determine the true heading of the carrier's motion. This is then fused with the three-dimensional velocity, position, and heading data obtained from the GNSS receiver to achieve integrated navigation. The integrated navigation system has undergone full-temperature zero-point and full-temperature scale compensation for its internal IMU modules, ensuring the reliability of the product.
Technical Specification
Liocrebif Company is a high-tech enterprise that has achieved a fully closed-loop system for fiber optic winding equipment, fiber optic winding manufacturing, IMU circuits, software, and IMU testing and calibration equipment. By comprehensively controlling upstream and downstream processes, the company can effectively improve product quality and reduce system costs. At the same time, the company implements the ISO9001 quality system and adopts strict processes to ensure the reliability and consistency of product performance.
The products offer various configuration options to accommodate different platforms, such as airborne, vehicle-mounted, and ship-mounted applications. When vehicle-mounted, the system incorporates vehicle constraints to ensure long-term measurement accuracy of attitude.
Table 1 Performance parameters of LKF-MSI300
|
MEMS Gyroscope |
|
|
Model |
MSI300 |
|
Range (°/s) |
±400 |
|
Full-temperature zero drift (°/h, 1σ) |
1 |
|
Zero offset stability (°/h, 10s smoothing) |
0.3 |
|
Zero offset instability (°/h, Allan) |
0.05 |
|
Zero offset repeatability (°/h) |
0.3 |
|
Angular random walk (°/√h) |
0.05 |
|
Scale factor nonlinearity (ppm) |
100 |
|
Cross-coupling (rad) |
≤0.001 |
|
Bandwidth (Hz) |
≥200 |
|
MEMS Accelerometer |
|
|
Range (g) |
±20 |
|
Zero position (mg, 1σ) |
0.5 |
|
Zero offset stability (ug, 10s smoothing) |
≤50 |
|
Zero bias stability (μg, Allan) |
≤20 |
|
Zero bias repeatability (μg) |
≤50 |
|
Velocity random walk (mm/s/√h) |
30 |
|
Scale factor nonlinearity (ppm) |
500 |
|
Cross-coupling (rad) |
100 |
|
Bandwidth (Hz) |
≥50 |
|
Navigation Accuracy |
|
|
Self-alignment accuracy (°, 1σ) |
1 |
|
Combined heading (°, 1σ, real-time) |
0.15 (1 m baseline dual antenna), 0.2 (single antenna, dynamic) |
|
Combined horizontal attitude (°, 1σ, real-time) |
0.03 |
|
Combined horizontal position (m, 1σ) |
3 (single point), 0.02+1 ppm (RTK) |
|
Combined vertical position (m, 1σ) |
5 (single point), 0.03+1 ppm (RTK) |
|
Combined horizontal velocity (m/s, 1σ) |
0.1 |
|
Combined vertical velocity (m/s, 1σ) |
0.15 |
|
Combined heading accuracy (°, post-processing) |
0.03 |
|
Combined horizontal attitude (°, post-processing) |
0.007 |
|
Inertial/odometer combination accuracy |
≤0.005D |
|
Dead reckoning accuracy (cm) |
5 |
|
Electrical/Mechanical Interfaces |
|
|
Power supply (V) |
9~36 |
|
Steady-state power (W) |
4 |
|
Start-up time (s) |
2 |
|
Communication interface |
2-channel RS-422, 3-channel RS-232, 1-channel CAN bus, PPS input/output port |
|
Update rate (Hz) |
200 (customizable) |
|
Dimensions (mm × mm × mm) |
87×79×56 |
|
Weight (g) |
≤500 |
|
Operating environment |
|
|
Operating temperature (°C) |
-40～+85 |
|
Storage temperature (°C) |
-55～+85 |
|
Vibration (g, RMS) |
20~2000HZ,6.06 |
|
Shock (g) |
1000g/1ms |
|
Reliability |
|
|
MTBF (h) |
20000 |
Main Features
100% domestically produced components, high performance, small size, low weight.
Supports full GNSS frequency points, high positioning and orientation accuracy in complex environments.
Rich interfaces and isolation measures.
Steady state operation with ultra-low power consumption of 4W.
Full temperature calibration compensation from -45°C to +80°C.
Combined navigation products support automatic north seeking with accuracy better than 1°.
Application
UAV/vehicle/ship/boat position and attitude reference
Attitude control
Optical/photographic platform
Surveying and mapping
Stabilized platform
Underwater vehicle
Motion communication
Intelligent driving
Missile control
Fig. 1 Dimensions of the external structure
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