Dubhe-M12 Autonomous FOG Ships Inertial Navigation System | 24V Quartz Accelerometer Maritime RLG INS
The Dubhe-M12 Marine Inertial Navigation System (INS) delivers high-precision navigation for maritime vessels. Combining FOG/laser technology with quartz accelerometers in a strapdown with modulation configuration, the system ensures reliable and accurate navigation in all operational conditions.
Equipped with a high-speed navigation computer, the Dubhe-M12 processes real-time data and supports multiple operation modes, including autonomous inertial navigation, satellite-aided navigation, and velocity-combined navigation, providing comprehensive positioning solutions for a variety of marine platforms.
Applications:
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Maritime vessels
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Ship platforms requiring high-precision navigation
Key Features and Capabilities:
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Real-time navigation computation for precise vessel positioning
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Autonomous inertial, satellite-aided, and velocity-combined modes
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Accurate heading, roll, pitch, speed, and position information
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Reliable navigation for diverse marine applications
Keywords: FOG INS, maritime inertial navigation system, quartz accelerometer INS, autonomous marine navigation, RLG INS, real-time navigation system, ship navigation INS
| Series | Maritime Inertial Navigation System(INS-M) | |
| Type | Dubhe-M12 | |
| Accelerometer | Months Bias Repeatability(1σ) | ≤30μg |
| Months Scale Factor Accuracy(1σ) | ≤30ppm | |
| Gyro | Bias Repeatability(1σ) | ≤0.01°/hr |
| Scale Factor Accuracy(1σ) | ≤10ppm | |
| Random walk(1σ) | ≤0.003°/√hr | |
| Features | Angular Rate | ≥±400°/sec |
| Angular Acceleration | 100000°/sec2 | |
| Acceleration | ＞25g | |
| Angular Attitude | Any Orientation | |
| Speed accuracy/Pure inertia | ≤0.6kn,RMS | |
| Speed accuracy/GNSS Combination | ≤0.4kn,RMS | |
| Startup time | ≤10sec | |
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | |
| Alignment time | ≤30min or ≤1hr | |
| Position accuracy | Pure inertia | ≤1nm/6h or ≤1nm/12h ,CEP |
| INS/DVL Combination | ≤0.3%D,RMS | |
| INS/GNSS Combination | better than GNSS | |
| Heading Accuracy | Pure inertia | ≤0.02°sec(L),RMS |
| INS/GNSS Combination | ≤0.01°,RMS | |
| Pitch & Roll Accuracy | Pure inertia | ≤0.01°,RMS |
| INS/GNSS Combination | ≤0.01°,RMS | |
| Characteristics | Power consumption | ＜40W |
| Dimensions(Lmm×Wmm×Hmm) | 193×169×160mm | |
| Weight | ＜6.5kg | |
| Temperature | -40℃~60℃ | |
| Shock | 15g,Half-sine wave 11ms | |
| Input Voltage | DC24V(±25%) | |
| cooling | Conduction to mounting plate | |
| Vibration | 20~2000Hz,6.06g | |
| MTBF | ＞10000 hours | |
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