INS | Leishen Robot | 3D SLAM Unmanned Forklift - AGV Robot

INS370M-25J

High-Precision Fiber Optic Inertial Navigation System

The INS370M-25J is an in-house high-precision fiber optic inertial navigation system, equipped with a three-axis high-precision 70-fiber optic gyro and a three-axis accelerometer.

It can provide real-time monitor information such as the carrier’s heading, position, velocity, and attitude. The system supports integrated navigation by fusing multiple sensors, including GNSS, altimeter, and DVL. It also supports various alignment modes, such as self-alignment and dynamic transfer alignment.

With its special structure and hardware/software design, the system can maintain attitude and heading without any external assistance, offering unlimited duration operation. This feature makes it particularly suitable for the navigation and attitude measurement of UAVs, underwater vehicles, and other unmanned systems.

It is characterized by strong autonomy, high reliability, and stable performance.

Applications ：

Product Parameters

IMU Technical Parameters
IMU Specifications	Parameters		X	Y	Z
	Gyroscope	Type	FOG	FOG	FOG
		Range	±500°/s	±500°/s	±500°/s
		Bias Stability(1σ)	≤0.03°/h	≤0.03°/h	≤0.03°/h
		Angle Random Walk (ARW)	≤0.009° /√h	≤0.009° /√h	≤0.009° /√h
		Scale Factor Nonlinearity	≤50ppm	≤50ppm	≤50ppm
	Accelerometer	Type	MEMS	MEMS	MEMS
		Range	±20g	±20g	±20g
		Bias Stability(1)	≤30μg	≤30μg	≤30μg
		Scale Factor Nonlinearity	≤40ppm	≤40ppm	≤40ppm
System Technical Parameters
Integrated Navigation			Satellite Lock Loss Accuracy(2σ)
Position (RMS)		≤3.0‰D(Auto) ≤0.8‰ (GNSS Lock Loss for 30min)	Attitude Accuracy(RMS)	≤0.02°(Real-time); ≤0.015°(Post-processing)
Velocity (RMS)		≤3.0 m/s(Pure Inertial for 1h) ≤0.05 m/s(GNSS/INS Integrated Navigation)	Heading Accuracy(RMS)	≤0.3°xSec(Lati), 15min(Self-calibrating North Seeking Alignment) ≤0.1°，1mBaseline， Dual Antenna (Satellite Integration)