MNV-N3M
MEMS Integrated Inertial Navigation System
Product Overview
MNV-N3M is a lightweight and cost-effective solution for vehicle positioning and orientation. It can complete alignment autonomously and output accurate azimuth and horizontal attitude for ground carriers. Combined with external equipment such as odometers, this inertial navigation unit supports dead reckoning to sustain stable vehicle positioning when satellite signals are weak or interrupted.
It integrates Beidou satellite positioning and navigation information internally. By tightly fusing inertial navigation and satellite navigation, it accomplishes continuous carrier positioning and navigation, making it a dependable core unit for vehicle positioning tasks on mobile platforms. This compact MEMS inertial system is engineered for ground vehicles that require consistent heading and attitude output even in complex signal-shielded environments.
Core Advantages
This inertial navigation module delivers high-precision north-seeking up to 3mil, which lays a solid foundation for stable vehicle positioning. It adopts full-temperature calibration compensation from -45℃ to +80℃, maintaining consistent sensor performance under extreme outdoor environments. A reserved odometer input interface enables dead reckoning navigation to support long-duration vehicle positioning without satellite coverage. Compared with pure GNSS receivers, this fused navigation scheme greatly improves reliability for mobile ground platforms.
Key Features for Vehicle Positioning
- North-seeking accuracy up to 3mil for reliable azimuth reference
- Full-temperature calibration compensation from -45℃ to +80℃
- Supports external odometer for dead reckoning navigation
- Light weight and compact structure for easy vehicle installation
- Built-in Beidou positioning module for combined navigation
Main Applications
- Vehicle inertial positioning and orientation
- Mobile mapping and surveying
- Ground target attitude measurement
- Unmanned ground vehicle navigation
- Mobile attitude reference platform
Compare with our other inertial navigation products: MVN-H15 MEMS INS GNSS Integrated Navigation Solution to select your ideal navigation system.
Learn more about inertial navigation fundamentals from Bosch MEMS inertial sensor technology.
Performance Specifications
| Category | Parameter Item | MNV-N3M |
|---|---|---|
| Gyroscope | Range (°/s) | ±200 |
| Full-temperature Bias (°/h) | 1 | |
| Bias Stability (°/h, 10s Smooth) | < 0.1 | |
| Bias Repeatability (°/h) | < 0.1 | |
| Resolution (°/h) | < 0.5 | |
| Non-orthogonality (rad) | < 0.003 | |
| Scale Factor Nonlinearity | < 100ppm | |
| Bandwidth (Hz) | ≥ 100 | |
| Accelerometer | Range (g) | ±20 |
| Bias (mg, full temperature) | < 2 | |
| Bias Stability (mg, 1σ, 10s Smooth) | < 0.05 | |
| Bias Repeatability (mg) | < 0.05 | |
| Resolution (mg, 1σ) | < 0.05 | |
| Non-orthogonality (rad) | < 0.003 | |
| Scale Factor Nonlinearity (ppm) | < 500 | |
| Bandwidth (Hz) | ≥ 100 | |
| System | Operating Temperature (℃) | -45 ~ +80 |
| Power Consumption (W) | < 10 | |
| Start-up Time (s) | < 3 | |
| North-seeking Accuracy | ≤ 3mil (1σ, 5min alignment) | |
| Attitude Accuracy | ≤ 0.5mil (1σ) | |
| Weight (kg) | ≤ 1.5 | |
| Dimension (mm) | ≤ 110×92×103 |
The MNV-N3M is a dedicated inertial navigation unit built for robust vehicle positioning in harsh field environments. It eliminates the risk of positioning failure caused by GNSS outages by combining north-seeking alignment, Beidou satellite fusion and odometer dead reckoning. This flexible vehicle positioning sensor is widely adopted for survey vehicles, unmanned ground platforms and mobile attitude measurement systems. Its compact size and low power consumption make it easy to integrate into vehicle systems without major mechanical modification.