Quality Laser Inertial Navigation System & Fiber Optic Inertial Navigation System Factory

This compact Tactical AHRS uses high-performance FOG/RLG gyroscopes and precision accelerometers for jamming-resistant, GNSS-denied navigation in a rugged strapdown design. Primary Sector: Defense and military – fire control, EO/IR stabilization, weapon pointing, combat vehicles, and unmanned systems (UGV/USV/UUV). Key Performance Highlights: · Alignment in under 10 minutes · Heading accuracy: ≤0.1° RMS (dual-antenna GNSS), ≤0.3° RMS (single-antenna), ≤0.5° secφ + 0.1°/h pure inertia · Pitch & roll accuracy: ≤0.03° RMS (INS/GNSS), ≤0.1° RMS pure inertia · Ultra-low gyro bias repeatability ≤0.03°/hr (1σ) and random walk ≤0.005°/√hr · Rugged: -40°C to +60°C, 15g shock, 6.06g vibration, conduction-cooled, Maintains accurate attitude and heading during complete GNSS outages or jammingProvides both processed navigation data and raw inertial outputs for maximum flexibilityEnables precise platform stabilization, targeting, and autonomous controlSupports mission-critical reliability in contested and harsh environmentsGlobal operability with MIL-SPEC-level durability and low power (

In the oil & gas industry, GPS often fails underground, underwater, or in remote areas. Inertial Navigation Systems (INS) provide reliable, signal-independent positioning and orientation using high-performance gyroscopes and accelerometers. INS computes real-time position, velocity, and attitude (roll, pitch, heading) by continuously integrating acceleration and rotation data—making it essential for GPS-denied environments such as deep wells, subsea operations, and buried pipelines. Primary Applications of INS in Oil & Gas – Concise Overview ·  Directional Drilling INS in MWD delivers real-time inclination, azimuth & toolface for accurate steering in horizontal, extended-reach & multilateral wells → better reservoir contact, lower risk. ·  Downhole Logging INS in LWD/wireline tools tracks position & attitude, corrects motion/vibration effects → higher accuracy in gamma ray, resistivity & formation logs for improved reservoir evaluation. ·  Subsea/Deepwater Navigation INS provides stable positioning for drillships, ROVs, AUVs & platforms in GPS-denied waters → enables dynamic positioning, subsea installation, pipeline laying & safe ultra-deep drilling. ·  Pipeline Inspection INS-equipped smart PIGs/ILI tools map 3D pipeline paths, detect bends/dents/defects precisely (with odometer/marker aid) → supports proactive maintenance & leak prevention onshore & subsea. Advantages of INS in Oil & Gas: ·  Fully autonomous: no GPS or external signals needed in underground, subsea, or pipeline settings ·  Real-time, high-frequency tracking of position, velocity & attitude for precise control ·  Strong resistance to EMI, vibration, shock & harsh environments ·  Supports digital twins, predictive maintenance, better safety & reduced downtime Key Challenges & Solutions: · Drift over long durations → mitigated by sensor fusion (DVL, odometers, magnetometers, pressure) + advanced algorithms (e.g., extended Kalman filter) · Harsh downhole temperatures & pressures → solved with ruggedized FOG, MEMS, and high-temp designs · High cost → justified for critical, high-value wells, deepwater, and complex operations #OilAndGas #InertialNavigation #DirectionalDrilling #MWD #PipelineInspection #Subsea #OffshoreEnergy #EnergyTech #Geospatial #DrillingTechnology

Forget the traditional image of a surveyor with a tripod. The frontier of geospatial data is now mapped from the air, from moving vehicles, and in the most remote corners of the planet—at unprecedented speed and accuracy. The engine behind this revolution? The Inertial Navigation System (INS). While vital in aerospace and defense, INS has catalyzed a quiet transformation in Surveying, Mapping, and Geomatics, enabling methodologies that were once impractical or impossible. Core Innovation: Direct Georeferencing Traditionally, aerial or drone data (LiDAR, photos) required slow post-processing with ground control points. INS, integrated with GPS and sensors, delivers real-time position (X, Y, Z) and orientation (roll, pitch, heading) for every measurement—attaching accurate real-world coordinates instantly. Key Applications Enabled by INS: 1. Mobile LiDAR Mapping — Vehicles, trains, or backpacks capture billions of precise 3D points in hours, revolutionizing highways, forestry, and utilities. 2. Bathymetric & Hydrographic Surveying — Vessels use INS to correct for waves and motion, accurately mapping underwater terrain with sonar. 3. Aerial Corridor Mapping — Aircraft scan power lines, pipelines, and railways for vegetation, asset condition, and maintenance needs. 4. Deformation Monitoring — Permanent INS/GPS stations detect millimeter-level shifts on dams, bridges, or volcanoes in real time.Why It Matters: · Efficiency — Projects drop from months to days · Safety — Maps hazardous areas remotely · Data Quality — Builds rich "digital twins" · Accuracy — Centimeter-level precision INS has evolved surveying into a dynamic, real-time reality-capture science—quietly powering our digital world, point by precise point. #Geomatics #Surveying #LiDAR #INS #InertialNavigation #Mapping #Drones #AerialSurvey #DigitalTwin #CivilEngineering #Geospatial

When land platforms operate in complex terrain, urban canyons, or GNSS-challenged environments, navigation accuracy is critical. The Dubhe-L1 Land INS / IMU is engineered to provide reliable, high-precision positioning, attitude, and heading information—anytime, anywhere. Powered by advanced Ring Laser Gyroscope (RLG) and Fiber Optic Gyroscope (FOG) technology, paired with precision quartz accelerometers, the Dubhe-L1 combines: Fast adaptive alignment for rapid mission readiness Intelligent sensor fusion for stable, continuous navigation Zero-velocity updates to reduce drift during long missions or GNSS interruptions Its rugged, compact design delivers consistent performance under extreme temperatures, shock, and vibration, making it ideal for: Armored vehicles and military ground platforms Autonomous land vehicles (UGV/AGV) High-speed rail and logistics vehicles Precision agriculture and industrial vehicles Key Advantages: Accurate and stable navigation in GNSS-denied environments Seamless integration with GNSS, odometer, and auxiliary sensors Low power consumption with long-term reliability Designed for harsh terrain and continuous operation The Dubhe-L1 Land INS delivers high-performance inertial navigation, giving operators confidence to move, navigate, and make mission-critical decisions without compromise.

The Maritime FOG INS is a rugged, strapdown inertial navigation system (INS) designed for the most demanding maritime and naval environments. Utilizing fiber-optic gyroscopes (FOG) or ring laser gyroscopes (RLG) combined with high-precision quartz accelerometers, the system provides continuous, real-time navigation gyro outputs with unmatched accuracy in heading, roll, pitch, speed, and position—even in GNSS-denied or GPS-compromised scenarios. Operational Modes & Features Autonomous inertial navigation for GPS-denied missions INS/GNSS integrated navigation using advanced Kalman filter algorithms Velocity-augmented navigation for dynamic marine maneuvers Attitude Heading Reference System (AHRS) capabilities High-speed real-time navigation processing for shipboard, USV, AUV, and offshore platforms Key Advantages Reliable maritime INS performance under harsh conditions (shock, vibration, temperature extremes) High-precision fiber gyroscope and laser inertial navigation system accuracy Quick alignment and startup for mission-critical operations Flexible integration into existing inertial measurement systems and inertial navigation units Supports both commercial maritime and defense naval applications Applications Shipboard navigation & gyrocompass replacement Tactical maritime guidance and platform stabilization Autonomous marine vehicles (USVs, AUVs) Offshore and research vessels Defense and naval operations requiring high-accuracy inertial guidance systems

In railway line surveying or vehicle-mounted LiDAR scanning projects, vehicles often travel at higher speeds through complex and changing environments: tunnels, elevated bridges, dense forests, or urban high-rises. These spots can easily weaken or completely block satellite signals (GNSS), causing standalone GNSS positioning to "jump" or drift. This leads to distorted 3D point clouds and inaccurate track parameters. That's where INS (Inertial Navigation System) and its core component IMU (Inertial Measurement Unit) step in as the key helper. Think of the IMU as the vehicle's built-in "gyroscope + accelerometer"—it measures acceleration and rotation hundreds of times per second (typically 200–1000 Hz). Even if GNSS signals drop out for seconds or longer, the IMU uses its "inertial memory" to keep estimating position and orientation. The Golden Combination: GNSS + IMU (Super Simple Version) GNSS: Like a "global GPS eye," it delivers centimeter-level absolute position—but it gets blocked easily. IMU: Like your inner ear's balance sense, it records every shake and turn at high frequency. When signals vanish, it "guesses" the next move based on physics. Fusion (usually via algorithms like Kalman filtering): GNSS regularly corrects the IMU's small accumulated errors, while the IMU fills in the blanks during signal blind spots. The result? GNSS handles long-term stability, IMU bridges short-term gaps—creating a continuous, reliable trajectory that pins LiDAR point clouds exactly where they belong, preventing blur or misalignment. Real-World Application Scenarios in Railway Surveying High-Speed / Conventional Rail Track Geometry and Deformation Monitoring Inspection vehicles run at 80–120 km/h along the tracks, with multi-line LiDAR scanning rails, catenary wires, etc. INS/IMU + GNSS outputs real-time position, velocity, and attitude (heading, pitch, roll) at over 200 Hz. LiDAR captures millions of points per second, projecting them accurately onto map coordinates using the precise trajectory. Even crossing several kilometers of tunnels, point clouds connect seamlessly in most cases. Industry typical performance: In longer tunnel sections, high-end systems control drift to sub-meter or better levels, enabling millimeter-grade analysis of track parameters (gauge, superelevation, defects). Metro / Tram Tunnel Full-Line Modeling Tunnels have zero GNSS signals; traditional methods rely on odometers or manual markers—low efficiency, big errors. Start with GNSS + IMU initialization in open sections for a high-accuracy starting point. Inside the tunnel, IMU takes over to maintain continuous trajectory. LiDAR scans tunnel walls, tracks, cables to build complete 3D models. Real results: Full-run point clouds often achieve overall accuracy better than 5–10 cm, with deformation monitoring reaching millimeter level—greatly shortening shutdown windows and cutting labor costs. Freight Rail Line Patrol and Intrusion Detection Remote lines with heavy vegetation often block GNSS under tree canopies. IMU delivers high-dynamic attitude, smoothing trajectories even during train sway. Fused trajectory removes LiDAR motion blur, making distant poles, slopes sharp and clear. Outcome: Reliable detection of intrusions, slope collapse risks, enabling proactive maintenance alerts. Why a Reliable INS Product Matters So Much Strong Bridging Capability: Handles extended GNSS outages stably (performance varies by IMU grade—fiber-optic or high-end MEMS excel in longer tunnels). High-Frequency Output: Matches LiDAR scanning perfectly for superior point cloud quality. Easy Integration: Standard interfaces (serial/Ethernet/time sync) fit mainstream LiDAR and survey vehicles. Rail-Grade Reliability: Vibration-resistant, temperature-stable for long-term field use. In short: In railway LiDAR mapping, unstable positioning = wasted data. A solid INS/IMU + GNSS setup turns your project from "barely usable" to "efficient, precise, and tunnel-proof." If you're working on high-speed rail track surveys, metro tunnel modeling, or line patrols, feel free to comment or reach out! Share your specifics (tunnel lengths, speed needs, budget), and we'll recommend the best-matching INS solution.

OverviewAn aging seabed cleaning vessel faced a completely failed navigation system, leaving its hydrographic computer, ship control system, and charting system unable to receive accurate positioning or heading data. This caused operational delays and increased safety risks. Customer Challenge Replace the vessel’s fully failed gyro navigation system Ensure seamless compatibility with existing hydrographic measurement and ship control systems Provide real-time, high-precision navigation and heading data Include installation, calibration, and on-site operator training Urgent delivery to minimize downtime Our SolutionWe deployed a high-precision fiber optic gyro (FOG) navigation system integrated with a GPS module. Key features included: Plug-and-play setup: Quick installation with automatic calibration for minimal downtime System compatibility: Fully compatible with existing control and hydrographic measurement equipment High precision and stability: Accurate heading and positioning, stable even at high speed and in harsh marine conditions On-site training: Hands-on training for operators on system usage, calibration, and basic maintenance Reliable logistics: Coordinated with the customer’s freight partner for safe and timely delivery of the system and spare parts Results Restored vessel capability: Stable and precise navigation enables efficient seabed cleaning operations Accurate real-time data: High-precision outputs to hydrographic and charting systems Reduced operational risk: Quick setup, automatic calibration, and training minimized downtime Technical Highlights Three-axis high-precision fiber optic gyro Integrated GPS for enhanced positioning accuracy Automatic calibration for plug-and-play installation Fully compatible with existing marine measurement and control systems Reliable performance in high-speed, high-shock, and harsh marine environments ConclusionThis project demonstrates our expertise in providing turnkey, high-precision navigation solutions for older marine vessels. By combining FOG technology with GPS, offering on-site training, and ensuring rapid deployment, we helped the customer quickly restore operational capability and achieve precise, efficient seabed cleaning operations.

In today's naval operations, precise and dependable navigation is essential for mission success, particularly for Offshore Patrol Vessels (OPVs). These vessels frequently undertake extended patrols, surveillance, and rapid response missions in challenging maritime environments. Our naval-grade fiber optic gyrocompass is specifically engineered to meet these demands, delivering stable heading references and attitude information using advanced fiber optic technology — ensuring outstanding performance under the most demanding conditions. Key Advantages Naval-Grade Ruggedness — Designed for harsh shipboard environments, it withstands vibration, shock, and onboard electromagnetic interference, providing consistent operation on combat-equipped vessels. Advanced Fiber Optic Technology — Leveraging precise optical principles, it delivers accurate heading data with minimal drift, enabling seamless integration with weapon systems for enhanced combat effectiveness. Independent Inertial Navigation — Maintains reliable positioning and attitude awareness even when external signals are unavailable or disrupted, supporting continued situational awareness. Flexible Integration — Modular design allows straightforward connection to existing navigation and combat management systems, suitable for a wide range of vessel types and sizes. Typical Applications Our fiber optic gyrocompass supports the core missions of offshore patrol vessels, including: Precise Vessel Navigation — Offers continuous, dependable heading references for safe maneuvering at high speeds and in rough seas. Weapon System Support — Serves as a stable reference for fire control and weapon platforms, ensuring accurate targeting despite vessel motion. Enhanced Situational Awareness in Complex Environments — Boosts autonomous navigation capabilities during electronic interference or dynamic sea conditions, improving mission safety and efficiency. Backed by proven expertise and extensive naval deployments, our fiber optic gyrocompass stands as a trusted solution in modern maritime navigation. If you are interested in our capabilities, please contact us for further details or to discuss technical requirements.

In the fields of modern ocean exploration, scientific research, and industrial underwater operations, precise attitude control and reliable navigation capabilities are key elements ensuring the success of Remotely Operated Vehicles (ROV). The Fiber Optic Gyroscope (FOG), with its outstanding high precision, low drift characteristics, and excellent environmental adaptability, provides robust inertial measurement support for ROVs and has become a core technology in underwater navigation systems. Core Advantages High Precision and Low Drift: Based on the Sagnac effect, FOG achieves extremely low bias instability, maintaining stable angular velocity measurements even during long-duration operations or in complex underwater environments—significantly outperforming traditional mechanical or MEMS sensors. Real-Time Attitude Monitoring: Provides accurate pitch, roll, and yaw angle data, enabling precise attitude adjustment and stable control of ROVs in dynamic currents. Compact and Durable Design: All-solid-state structure with no moving parts, resistant to vibration, shock, and pressure changes; long lifespan and low maintenance costs—perfectly suited for harsh deep-sea environments with high pressure and intense vibrations. Flexible Integration Capability: Easily integrates with ROV control systems, inertial navigation algorithms, depth sensors, Doppler Velocity Logs (DVL), and others to form high-performance Inertial Navigation Systems (INS), further enhancing overall positioning accuracy. Application Value Attitude Stability Control: Ensures stable ROV operation under complex currents or operational disturbances, preventing loss of control and enhancing operational safety. Inertial Navigation Support: Provides continuous position and orientation tracking in deep-water areas where GNSS signals are unavailable, suitable for long-duration exploration and pipeline inspections. Improved Task Efficiency and Safety: Significantly enhances the precision and reliability of marine scientific research, resource exploration, and subsea infrastructure maintenance, reducing risks and optimizing operation time. Current mainstream FOG systems support efficient static gyro compassing, achieving high-precision heading alignment. For heading requirements in high-speed motion or dynamic environments, advanced algorithm integration or fusion with auxiliary sensors can further meet the demands of complex ROV missions. The Fiber Optic Gyroscope (FOG) serves as a core technology for modern ROV attitude control and navigation. With its high precision, exceptional reliability, and seamless integration features, it significantly improves the stability and efficiency of underwater operations, providing strong technical assurance for marine scientific research, resource development, and industrial applications.

In complex electromagnetic environments, conventional GNSS-based navigation systems are increasingly vulnerable to signal degradation, intermittent loss, or complete denial. Intentional or unintentional interference, jamming, and multipath effects can severely impact positioning and attitude accuracy. To address these challenges, integrated anti-jamming GNSS/INS navigation systems have become a critical engineering solution, enabling continuous and reliable navigation and attitude outputs even under harsh interference conditions. 1. Application Background In high-interference operational scenarios, navigation systems are typically required to continuously provide: Position Velocity Attitude information (Roll, Pitch, Heading) These systems are often deployed on mobile platforms such as UAVs, autonomous vehicles, maritime platforms, and defense systems, where strict SWaP constraints (Size, Weight, and Power) apply. As a result, the navigation solution must not only be accurate, but also: Highly integrated Robust against interference Optimized for long-term reliability 2. Anti-Jamming as a System-Level Engineering Challenge From an engineering perspective, anti-jamming performance cannot be achieved by the RF front-end alone. While anti-jamming GNSS antennas play a vital role in spatial filtering and interference suppression, navigation continuity ultimately depends on system-level co-design, including: GNSS receiver architecture Inertial sensor performance Sensor fusion algorithms Coupling strategy between GNSS and INS A practical integrated anti-jamming navigation solution typically includes: Multi-channel anti-jamming GNSS receiver Anti-jamming antenna for front-end interference mitigation High-performance INS (gyroscopes and accelerometers) Tightly coupled or deeply coupled GNSS/INS architecture Only through coordinated system integration can stable navigation performance be maintained under severe interference. 3. Value of GNSS/INS Integration in Interference Environments When GNSS signals are degraded, blocked, or temporarily unavailable, the Inertial Navigation System (INS) provides short-term navigation continuity based on inertial measurements. Once GNSS signal quality recovers, GNSS observations are reintroduced into the navigation filter to correct inertial drift. Through multi-sensor fusion, an integrated GNSS/INS system can: Maintain continuity of the navigation solution Preserve stable and smooth attitude outputs Reduce the impact of GNSS outages and interference Significantly improve overall system robustness This complementary behavior makes GNSS/INS integration essential for high-reliability navigation applications. 4. Importance of Integrated System Design Modern navigation platforms face increasing pressure to balance performance with SWaP constraints. As a result, integrated anti-jamming navigation systems must achieve: High-level integration of antenna, GNSS receiver, and INS Optimized trade-offs between miniaturization, power consumption, and accuracy Coordinated optimization of anti-jamming capability and navigation performance Such systems are no longer simple assemblies of independent components. Instead, they represent application-driven, system-level engineering solutions designed to meet specific operational requirements. 5. Engineering Summary As operational electromagnetic environments continue to grow more complex, GNSS can no longer be treated as a standalone navigation source. Instead, it functions as one component within a deeply integrated GNSS/INS navigation architecture, where inertial sensing, anti-jamming techniques, and advanced sensor fusion algorithms work together. Integrated anti-jamming GNSS/INS navigation systems are emerging as a key technical approach for delivering reliable positioning, velocity, and attitude information in high-interference environments—supporting mission-critical applications across aerospace, defense, unmanned systems, and advanced industrial platforms.