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

H1: Combining INS and LiDAR for High-Precision 3D Railway Mapping As railway networks move toward digital twin and intelligent maintenance systems, 3D track modeling is becoming the foundation for accurate structural analysis and predictive maintenance. The most reliable solution today integrates Inertial Navigation Systems (INS) with LiDAR. H2: The Role of INS and LiDAR in Railway Mapping H3: INS Provides High-Frequency Attitude Data INS outputs: roll pitch heading angular rate linear acceleration This prevents point cloud distortion caused by motion or vibration. H3: LiDAR Generates Dense 3D Point Cloud Data LiDAR captures: rail profile sleepers & fasteners ballast surfaces tunnels and platform geometry INS provides the “stability reference,” allowing the LiDAR point cloud to remain upright, aligned, and drift-free. H2: Why Fusion Is Necessary LiDAR alone cannot determine scanner orientation. Without INS: point clouds tilt curve sections distort stitching becomes inaccurate With INS fusion: consistent long-range scanning accurate curvature reconstruction stable mapping at high operational speeds fully usable, engineering-grade point clouds H2: Application Scenarios Railway inspection vehicles High-speed rail comprehensive inspection trains Track inspection robots Under-carriage scanning systems Digital twin modeling for metro & high-speed rail H2: Conclusion INS + LiDAR fusion has become the standard solution for precision 3D track reconstruction. By providing stable attitude references and dense point clouds, this combination supports intelligent maintenance and next-generation digital twin systems in the global railway industry.   Keywords: INS LiDAR fusion, 3D railway mapping, track reconstruction, LiDAR track inspection, inertial navigation LiDAR integration, railway digital twin

Modern railway maintenance is shifting toward lightweight, portable, and GNSS-independent inspection technologies. In environments such as tunnels, underground metro lines, or bridges, GNSS signals are unavailable—yet accurate structural health monitoring is still essential. This is where IMU/INS systems deliver exceptional value. How IMU/INS Detects Track Defects Without GNSS Even without external positioning data, an IMU can diagnose abnormalities in the track through motion dynamics, angular measurements, and temperature behavior. 1. Vibration Analysis (Acceleration Curves) Abnormal acceleration signatures allow detection of: Loose fasteners Ballast settlement Voids beneath concrete slabs Sleeper cracking or damage High-frequency vibration data is especially valuable for early-stage defect discovery, where visual inspection alone may fail. 2. Angular Rate Variations (Gyroscope Output) Gyroscope signals help identify structural or geometric issues, including: Gauge widening Rail wear Track misalignment or deformation Angular rate anomalies often appear before defects become visible, enabling predictive maintenance. 3. Temperature Drift as a Secondary Indicator Structural defects can alter stress distribution and heat conduction. This leads to small but measurable temperature drift in IMU sensors. Temperature data provides additional clues for: Slab voids Layer delamination Foundation instability Abnormal structural stress zones When combined with vibration and angular data, temperature behavior strengthens defect classification. Application Scenarios IMU/INS-based, GNSS-free monitoring is suitable for: Portable inspection trolleys Backpack-style or hand-pushed inspection tools Metro tunnel structural monitoring Autonomous rail inspection robots Soft-soil or weak foundation settlement detection These solutions enable low-cost, continuous, and intelligent monitoring even in challenging environments. Conclusion Even when used purely as an IMU, an INS provides a powerful dataset for diagnosing railway track defects. By combining vibration, angular rate, and temperature characteristics, IMU/INS-based systems deliver precise, GNSS-independent structural health monitoring. This makes them ideal for modern, digital, and intelligent railway maintenance and inspection systems.

Meta Description: Discover how IMU/INS technology enhances railway curve inspection by providing accurate roll, pitch, and heading data for high-speed rail safety and track geometry evaluation. Keywords: INS for railway, IMU track geometry, high-speed rail inspection, railway curve measurement, track attitude monitoring, inertial navigation system railway H1: Inertial Navigation in Railway Curve Inspection High-speed rail systems rely heavily on the geometric accuracy of track curves. As trains pass through curved sections at high speeds, even small deviations in track alignment can increase wheel–rail forces, reduce ride comfort, and compromise safety. Inertial Navigation Systems (INS) have become indispensable for evaluating these parameters with high precision. H2: Why INS Is Critical in Curve Geometry Analysis INS delivers continuous, high-frequency measurements of: Roll (left–right inclination, linked to superelevation) Pitch (vertical gradient and alignment changes) Heading (curve direction, radius, and transitions)   Angular rate & linear acceleration (curve entrance and exit dynamics) These parameters allow inspectors to verify whether a curve meets design specifications—including superelevation, transition length, and curvature consistency. Even in tunnels, viaducts, or dense urban areas where GNSS signals fail, INS continues providing reliable attitude data, ensuring uninterrupted measurement. H2: Application Scenarios H3: High-Speed Rail Track Geometry Inspection INS ensures precise curvature and super-elevation measurement under high vibration environments. H3: Turnout and Transition Section Monitoring Curve transition zones often accumulate stress; INS helps detect early geometric drift. H3: Portable Inspection Trolleys & Robots Compact INS modules enable lightweight, field-deployable inspection tools. H2: Conclusion INS serves as the “attitude reference” for all curve inspection platforms. With superior vibration resistance and GNSS-independent operation, INS ensures reliable, high-precision curve geometry evaluation for modern railway maintenance.  

CSSC Star&Inertia Technology Shines at 2025 Emergency & Dual-Use Expo in Shanghai Shanghai, China – November 25–27, 2025 – CSSC Star&Inertia Technology Co., Ltd. made a striking appearance at the 2025 Emergency & Dual-Use Expo, held at Shanghai Pudong Software Park (Booth YJ001), showcasing its cutting-edge inertial navigation solutions to an international audience. Visitors at the expo were captivated by our advanced Inertial Navigation Systems (INS), gyroscopes, and accelerometers, which are widely applied in UAVs, robotics, and emergency response equipment. The exhibition highlighted our commitment to high-precision navigation technology, combining reliability, stability, and real-time performance for complex operational scenarios. In addition to our core products, the booth featured interactive demonstrations, live video displays, and hands-on testing of our systems, drawing significant attention from professionals in the UAV, counter-UAS, and robotics industries. Attendees were particularly impressed by our innovative approaches to R&D collaboration and technology transfer opportunities. “Our participation in this expo demonstrates our dedication to advancing navigation technology and providing solutions that meet the demanding needs of both defense and commercial applications,” said a company spokesperson. High-precision Inertial Navigation Systems Multi-axis Gyroscopes Accelerometers for UAVs, robotics, and emergency applications Real-time demonstration of navigation and stabilization systems Event Details: Expo: 2025 Emergency & Dual-Use Expo Date: November 25–27, 2025 Venue: Shanghai Pudong Software Park Booth: YJ001 CSSC Star&Inertia Technology continues to lead in the development of advanced navigation solutions, strengthening its presence in global technology markets and forging new partnerships for the future.

Advancing Offshore Precision: Understanding Modern Marine MRU Systems In offshore engineering, marine surveying, and dynamic positioning, accurate real-time motion measurement is essential. Waves, vessel motion, and environmental disturbances continuously affect onboard systems, making compensation and stabilization critical for safe and precise operations. This is where the MRU (Motion Reference Unit) becomes a core component of modern maritime platforms.  What Is an MRU? A Motion Reference Unit is a high-precision motion sensor designed to measure: Roll Pitch Heave (Optionally) heading, depending on the system Unlike a full Inertial Navigation System (INS), an MRU focuses on delivering high-accuracy motion and attitude data, even in dynamic ocean conditions. These measurements are supplied to systems such as: Multibeam echo sounders (MBES) ROV/AUV control units Dynamic positioning (DP) systems Crane and launch-and-recovery systems Oceanographic survey packages Offshore engineering platforms In short: MRU = Real-time motion stabilization foundation for the modern ocean industry.  Designed for Harsh Marine Environments This MRU is engineered for demanding conditions, with: IP68 protection, 50-meter submersion rating This level of sealing ensures: Long-term underwater operation Full resistance to seawater corrosion Zero particulate ingress No performance loss under pressure This makes it suitable for: Hull-mounted installations ROVs / AUVs Side-scan sonar platforms Subsea equipment frames Deck-mounted systems often exposed to splashing or immersion  High-Confidence Motion Measurement Roll and Pitch Accuracy Depending on the configuration level, the MRU achieves: Configuration Accuracy β̂ 3000 ±0.05° β̂ 6000 ±0.02° β̂ 9000 ±0.01° ±0.01° performance places the unit in the highest class of offshore survey and navigation requirements, suitable for: IHO-compliant multibeam bathymetry Deep-sea exploration Critical offshore construction DP Class 2/3 systems  Smart Heave Performance Heave accuracy is: 5 cm or 5% of true motion – whichever is greater Why is this important? Ocean conditions vary dramatically. In small wave environments, 5 cm ensures extreme measurement fidelity. In large ocean conditions, a percentage-based rule scales appropriately with real movement. This makes the MRU reliable across: Near-shore operations Deep-sea survey missions Rough-weather engineering work Crane and cable stabilization systems  Marine-Standard Connectivity With options for LEMO or Subconn industrial connectors, the MRU integrates easily into existing subsea and shipboard networks. Compatibility covers: Common survey data busses Navigation control systems ROV tether electronics Real-time survey acquisition software This ensures: Fast system integration Stable long-term operation Maintenance-friendly architecture  Typical Applications ✔ Multibeam and Hydrographic Surveying Accurate roll/pitch and heave are essential to maintain seafloor mapping precision. With ±0.01° accuracy, the MRU supports: High-resolution bathymetry Seafloor morphology analysis IHO S-44 compliance ✔ Dynamic Positioning (DP) DP processors rely on MRU output for: Thruster control Vessel stability Real-time motion feedback ✔ ROV / AUV Navigation Provides: Attitude stabilization Real-time motion compensation Improved subsea navigation accuracy ✔ Offshore Cranes & LARS Heave and attitude feedback enable: Predictive load motion Safe launch and recovery Improved deck handling efficiency  Why This MRU Matters As offshore projects move to deeper water and higher accuracy demands, equipment must offer: Higher precision Longer operational reliability Resistance to real-world ocean conditions This MRU delivers: ✔ Survey-grade roll and pitch✔ Marine-optimized heave performance✔ Submersible IP68 design✔ Compatibility with modern offshore systems✔ Stable long-term performance Whether mounted on a survey vessel, engineering ship, deepwater ROV, AUV, or seafloor package, it provides the reliable motion measurement layer required for professional ocean operations.  Conclusion Accurate motion compensation is the foundation of every modern maritime mission. With its high precision, ruggedized sealing, and application-focused engineering, this MRU represents a robust solution for: Hydrographic surveying Offshore construction Subsea inspection Dynamic positioning Oceanographic research In environments where every centimeter and every degree matters, this MRU helps operators gain control, maintain accuracy, and ensure mission success.  

Applications of Inertial Navigation Systems (INS) in Oil & Gas Exploration Modern oil and gas extraction increasingly relies on precise positioning, accurate tool orientation, and continuous operational data—especially in deep underground or subsea environments where GPS signals cannot reach. Inertial Navigation Systems (INS) have become a core technology supporting advanced drilling, logging, and pipeline inspection. 1. What Is Inertial Navigation? An Inertial Navigation System (INS) uses gyroscopes and accelerometers to measure angular velocity and linear acceleration. By integrating these measurements, the system computes: Position Velocity Attitude (roll, pitch, yaw) Because it works without external signals, INS is ideal for harsh, enclosed, or GPS-denied environments such as downhole wells, deepwater drilling, and long-distance pipelines. 2. Key Applications in the Oil & Gas Industry  2.1 Directional Drilling & Trajectory Control INS provides continuous monitoring of the drilling tool’s orientation, including: Inclination Azimuth Toolface angle When integrated with Measurement While Drilling (MWD) systems, INS enables: Precise wellbore trajectory control Improved accuracy in horizontal, extended-reach, and multilateral wells Enhanced safety and reduced drilling errors 2.2 Logging & Formation Evaluation INS can be embedded in downhole logging tools to: Track tool movement and orientation during logging runs Correct measurement curves affected by tool motion Improve formation interpretation and geological modeling This leads to more reliable reservoir evaluation.  2.3 Deepwater Drilling & Subsea Operations In deepwater environments where GPS signals cannot penetrate: ROVs (Remotely Operated Vehicles) use INS for underwater navigation Drillships and subsea platforms depend on INS for position and attitude stabilization INS supports dynamic positioning and safe drilling operations INS provides continuous, stable, and accurate subsea navigation even under extreme challenges like currents, turbidity, and low visibility. ️ 2.4 Pipeline Inspection & Mapping Inside long oil and gas pipelines, inspection tools (PIGs) use INS to: Record the internal pipeline path Identify bends, curves, and deformation Locate corrosion, cracks, or welding defects Reconstruct 3D pipeline routes when GPS is unavailable When combined with odometers or magnetic markers, INS enables high-precision defect localization, crucial for pipeline integrity management. 3. Advantages of INS in Oil & Gas ✔️ No signal dependency — works in underground, underwater, and blocked environments ✔️ High dynamic performance — real-time attitude and motion output ✔️ Strong anti-interference capability — immune to electromagnetic and geological disturbances ✔️ Continuous data — provides complete motion and trajectory records These strengths make INS a key technology for modern intelligent drilling and digital oil & gas solutions. 4. Challenges & Future Development Despite its wide benefits, INS still faces: ⚠️ Error Accumulation Long-term integration causes drift; solutions include: Sensor fusion (INS + odometer + geomagnetic + pressure sensors) Advanced filtering algorithms ⚠️ High-Temperature & High-Pressure Conditions Downhole tools require INS components with: High thermal resistance High pressure tolerance Ruggedized packaging ⚠️ Cost Considerations High-precision INS systems are expensive and usually reserved for: Critical well sections Deepwater operations High-value drilling missions Conclusion Inertial Navigation Systems are transforming the oil & gas industry by enabling precise drilling control, accurate downhole measurements, reliable subsea navigation, and high-fidelity pipeline inspection. As sensor technologies continue to evolve, INS will play an even greater role in the automation, digitalization, and safety of modern energy exploration.  

Modern underground coal mining faces increasing demands for higher productivity, greater accuracy, and safer operations. Yet, real-world challenges remain significant: Directional deviation during long-distance cutting or advancing Frequent rail adjustments that slow down operations Poor visibility caused by dust, humidity, and water mist Difficulty identifying cutter head wear or damage in real time Heavy reliance on operator experience rather than data-driven control Limited automation under harsh underground conditions As mining moves toward digitalization and intelligent operations, the combination of Inertial Navigation Systems (INS), industrial cameras, and millimeter-wave radar offers a breakthrough solution—delivering accurate guidance, visual monitoring, and robust perception in the toughest underground environments. 01 Inertial Navigation: Keeping Every Advance Straight, Accurate, and Stable Because GNSS signals do not work underground, INS becomes the foundation for precise cutter direction control. Using gyroscopes, accelerometers, and sensor fusion algorithms, INS provides: ✔ Accurate straight-line guidance for any required advancing distance Regardless of whether the project requires tens, hundreds, or thousands of meters of straight-line advancing, INS maintains directional stability and consistency. ✔ Minimal deviation and reduced rework Real-time attitude monitoring allows early detection and correction of directional drift. ✔ Fewer rail adjustments With better directional accuracy, operators spend less time correcting rail alignment, improving overall efficiency. ✔ Reliable data foundation for automated advancing INS delivers the position and attitude data essential for future semi-automatic and fully automated loading or cutting systems. 02 Industrial Cameras: Real-Time Visibility of Cutter Head Health High dust concentration, low light, and high humidity make manual monitoring of the cutter head difficult and unsafe. High-protection industrial cameras (IP68/IP69K) solve this by providing: ✔ Real-time cutter wear and damage detection AI algorithms detect cracks, missing teeth, abnormal sparks, or deformation and trigger immediate alerts. ✔ Clear imaging in dusty, foggy, or wet environments Anti-fog heating, reinforced optical windows, and wide dynamic range imaging ensure visibility even under harsh conditions. ✔ Remote visual monitoring Operators can assess cutter conditions from the control room—safer and more efficient. ✔ Reduced equipment failures Early detection prevents serious failure modes such as cutter jamming or sudden blade breakage. 03 Millimeter-Wave Radar: Reliable Perception Beyond Dust and Water Mist Unlike cameras, millimeter-wave radar is highly resistant to dust, water vapor, and smoke—making it ideal for underground work. Radar enhances the system with: ✔ Stable distance and obstacle detection Even in near-zero visibility, radar provides accurate range measurements and obstacle identification. ✔ Detection of lateral deviation during advancing If the machine begins drifting off track, the radar identifies the shift early. ✔ Redundant sensing together with INS and cameras INS provides position and attitude Cameras monitor cutter condition Radar detects environmental obstacles and track deviationTogether, they form a robust, fail-safe sensing system. 04 Sensor Fusion: Driving the Next Era of Intelligent Mining INS, industrial cameras, and radar form a unified intelligent perception platform, enabling: 1) Fewer rail corrections More accurate guidance results in smoother advancing and less downtime. 2) Higher advancing efficiency Reduced rework, fewer interruptions, and early damage detection significantly improve productivity. 3) Lower equipment wear and maintenance cost Real-time visual and radar-based monitoring prevents unexpected cutter failures. 4) Full-process data recording and traceability Advancing trajectories, equipment status, and environmental data are automatically logged for analysis and optimization. 5) A solid foundation for semi-autonomous and fully autonomous mining Once perception and navigation are reliable, advanced automated control becomes achievable. 05 Ideal Application Scenarios This integrated system is especially well-suited for: Long-distance advancing and roadway development Tunnels or sections where rail deviation is frequent High-dust, high-humidity, or low-visibility environments Operations with high cutter wear or breakage risk Smart mine construction and intelligent equipment retrofits Across all these environments, the system improves safety, efficiency, and consistency—while greatly reducing manual burden. Conclusion: Intelligent Technologies Are Transforming Underground Mining By combining Inertial Navigation, industrial-grade imaging, and millimeter-wave radar, coal mines can move beyond the limitations of traditional manual advancing. These technologies enable: More precise operations Better equipment protection Higher efficiency Safer underground environments A gradual shift toward automated and unmanned mining This is not just an upgrade—it represents a major step toward the future of smart mining.  

Underwater inspection technologies are essential for offshore energy, marine engineering, and subsea communication infrastructure. From oil pipelines to fiber-optic cables, operators rely on compact, camera-equipped underwater vehicles to conduct visual inspections with high efficiency and accuracy. Because GNSS signals cannot penetrate water, these underwater platforms require a high-precision inertial navigation system (INS) to maintain stable heading and correct camera orientation throughout the mission. This article introduces a typical application scenario and explains how our Merak-M1 INS supports underwater inspection tasks. 1. Application Scenario: Compact Underwater Inspection Vehicle Modern inspection vehicles—typically small submarine-type platforms—are widely used for: Offshore and near-shore pipeline inspection Oil and gas subsea pipeline monitoring Underwater power and communication cable inspection General seabed visual surveys These units operate underwater for 1–2 hours, carrying onboard cameras and lighting systems to capture real-time video. Since the INS is installed inside the vehicle’s waterproof compartment or sealed electronics bay, it provides precise motion and orientation sensing during the entire mission. In many cases, the underwater unit collaborates with a surface support vessel. The vessel provides positioning data, while the onboard INS offers heading and attitude information crucial for maneuvering and image stabilization. 2. Technical Requirements for INS in Underwater Vehicles For underwater inspection equipment, the inertial navigation system must meet the following requirements: Environmental Integration Requirements Installed inside a sealed, customer-provided waterproof enclosure Compatible with marine-grade connectors and internal wiring harnesses Resistant to marine vibration and operational temperature conditions Performance Requirements Heading accuracy: 0.1°–0.2° Stable pitch and roll output for camera stabilization Reliable performance during low-speed movement, hovering, or drift Electrical & Interface Requirements Power supply options: 24 V DC or 115 V / 60 Hz Data output interfaces: NMEA-0183 RS485 Support for circular metal connectors and custom internal cabling These specifications ensure that the INS can function precisely once integrated into the vehicle’s protected compartment. 3. Recommended Solution: Merak-M1 Inertial Navigation System The Merak-M1 INS is well suited for compact underwater inspection platforms due to its accuracy, reliability, and versatile interface options. Key Advantages High-Precision Heading (0.1°–0.2°) Ensures accurate tracking along subsea pipelines and cables. Compact Size for Small Underwater Vehicles Easy to install inside sealed internal compartments. Multiple Interfaces for Marine Systems Supports NMEA-183, RS485, and other standard communication protocols. Works Seamlessly With Surface-Vessel Cooperative Navigation INS provides attitude and heading; the vessel supplies global position. The Merak-M1 maintains stable heading and attitude output even when the vehicle moves slowly or hovers, ensuring clear, steady video streams during inspection tasks. 4. Integration Options for Underwater Platforms To provide a complete inspection capability, the INS can be integrated with: HD / 4K underwater cameras LED lighting systems Tethered or fiber communication modules GNSS receivers on the surface vessel Custom waterproof wiring harnesses and sealed bays These combinations support a broad range of scientific, industrial, and offshore inspection missions. 5. Supporting Modern Underwater Robotics As maritime infrastructure expands, compact underwater inspection vehicles equipped with high-accuracy inertial navigation will continue to play key roles in: Pipeline maintenance Cable inspection and repair Marine engineering oversight Environmental monitoring Harbor, port, and hull inspection Our engineering team provides complete support for integration, including interface documentation, connector customization, and system configuration. If you are developing underwater inspection vehicles, ROVs, AUVs, or subsea monitoring platforms, we welcome you to contact us for tailored inertial navigation solutions optimized for marine environments.  

Modern inertial navigation systems rely heavily on high-precision rotation sensors. Among them, the Ring Laser Gyroscope (RLG) and Fiber Optic Gyroscope (FOG) are the most widely used due to their stability, accuracy, and reliability. This article provides a clear overview of how these gyroscopes work, the different classifications of fiber-optic gyros, and how their performance compares internationally. 1. What Is a Ring Laser Gyroscope (RLG)? The academic name of a laser gyroscope is the Ring Laser.Its internationally recognized term is Ring Laser Gyroscope (RLG). An RLG is essentially a He-Ne (Helium–Neon) laser with a closed ring cavity.Inside the cavity, two laser beams propagate in opposite directions. When the system rotates, the optical path lengths change asymmetrically, resulting in a measurable frequency difference. This physical mechanism is known as the Sagnac Effect — the same principle used in all optical gyroscopes. Why RLGs Are Important Large dynamic range Very high accuracy Exceptional long-term stability Mature and proven in aerospace and defense applications 2. Fiber Optic Gyroscopes (FOG): Types and Measurement Principles Fiber Optic Gyroscopes also rely on the Sagnac Effect, but instead of a laser cavity, light travels through a long coil of optical fiber. FOGs can be categorized into three main types: 2.1 Resonant Fiber Optic Gyroscope (RFOG) Measures frequency difference between counter-propagating beams Uses a resonant optical cavity Potential for extremely high accuracy Favored for next-generation navigation systems 2.2 Interferometric Fiber Optic Gyroscope (IFOG) Measures phase difference Currently the most mature and widely used type High reliability and good cost-performance ratio 2.3 Brillouin Scattering Fiber Optic Gyroscope (BFOG) Measures phase difference Utilizes Brillouin scattering effects in optical fiber Suitable for high-precision applications 3. Open-Loop vs. Closed-Loop FOG Architecture Open-Loop Fiber Optic Gyro   Relatively simple design Small dynamic range Poor scale-factor linearity Lower accuracy Best for cost-sensitive or mid-performance applications. Closed-Loop Fiber Optic Gyro More complex design Large dynamic range Excellent scale-factor linearity High accuracy Widely adopted in aerospace, robotics, marine, and unmanned systems. 4. RLG vs. FOG: Performance Comparison Type Complexity Dynamic Range Scale-Factor Linearity Accuracy Open-Loop FOG Low Small Poor Low Closed-Loop FOG Medium–High Large Excellent High Ring Laser Gyroscope (RLG) High Large Excellent Very High   5. Accuracy Levels: Domestic vs. International China (Domestic): RLG accuracy: >5 ppm Bias stability: 0.01–0.001°/h International (Top Tier): RLG accuracy: 

UAV Inertial–Vision–GNSS Integrated Navigation System: Product Overview & Technical Guide Unmanned aerial vehicles (UAVs) are becoming increasingly autonomous, intelligent, and mission-capable. As missions expand into complex airspace and demand higher reliability, the need for accurate, stable, and redundant navigation methods has grown sharply. Traditional GNSS-only navigation can no longer meet the requirements of high-precision flight, especially in environments where satellite signals are weak, blocked, or intentionally interfered with. To address these challenges, our company has developed a lightweight, compact, and highly reliable Inertial–Vision–GNSS Integrated Navigation System, designed specifically for UAVs requiring accurate attitude, velocity, and position information during all stages of flight. 1. System Overview Built on our advanced research capabilities in inertial navigation and onboard image processing, the system integrates inertial sensing, visible-light vision processing, and GNSS positioning into one compact module. This integrated approach ensures: High-precision navigation under various visibility conditions Stable autonomous flight even when GNSS performance degrades Reliable operation throughout takeoff, cruising, and landing Engineered for UAV platforms, the product features: Lightweight and compact structure Low power consumption High reliability and cost-effective performance This makes it ideal for small and medium UAVs performing reconnaissance, mapping, inspection, and autonomous landing tasks. 2. Core Functions & Capabilities 2.1 Main Functions The system provides several advanced onboard capabilities: Visible-light imaging & onboard image processingReal-time scene capture and processing for visual feature extraction. Multi-source integrated navigation Inertial Navigation Vision-based Scene-Matching Navigation Inertial–Vision–GNSS Fusion Navigation Autonomous Navigation Outputs Attitude Velocity PositionThese outputs enable the UAV to complete autonomous missions with high stability and accuracy. 3. Technical Specifications Under normal UAV cruising and landing visibility conditions (visibility >10 km, clear runway or feature targets), the system offers the following performance: 3.1 Navigation Accuracy Autonomous Positioning Accuracy:≤ 100 m (RMS) when operating at 1–5 km flight altitude. This level of accuracy ensures safe and dependable autonomous landing, even without perfect GNSS availability. 3.2 Physical Characteristics Parameter Specification Weight ≤ 2 kg Dimensions 170 mm × 142 mm × 116 mm Power Supply 12 V Power Consumption ≤ 30 W With its compact footprint and low power draw, the system can be integrated into a wide range of UAV platforms without overloading the aircraft. 4. System Architecture The UAV Inertial–Vision–GNSS Integrated Navigation System consists of three major subsystems: Visible-Light Camera UnitCaptures external scenes for feature matching and landing guidance. Data-Processing UnitExecutes image processing, scene matching, and multi-sensor fusion algorithms. Inertial Navigation UnitProvides attitude, angular rate, and acceleration measurements for continuous navigation. These components work together seamlessly to deliver robust, real-time navigation data. 5. External Interfaces 5.1 Mechanical Interface System dimensions: 170 mm × 142 mm × 116 mm Weight: ~2 kg The product supports two installation methods: Bottom mounting Side mounting Each installation surface includes: Four M4 mounting holes, arranged with a spacing of 134 mm × 60 mm The UAV airframe secures the device using four M4 screws This flexible mounting design supports integration with fixed-wing, rotary-wing, and VTOL UAV platforms. 6. Application Scenarios This integrated navigation system is suitable for UAV missions requiring stable and reliable navigation performance, including: Autonomous takeoff and landing Long-range or high-altitude cruising Reconnaissance and surveillance Power line, pipeline, or maritime inspection Mapping and photogrammetry UAVs operating in GNSS-challenged environments By combining inertial, visual, and satellite navigation techniques, the system offers robust performance even in complex real-world environments. Conclusion Our UAV Inertial–Vision–GNSS Integrated Navigation System represents a next-generation solution for intelligent and autonomous UAV navigation. With its compact design, low power consumption, and advanced multi-source fusion algorithms, it ensures precise and stable navigation throughout the entire flight envelope—from takeoff to landing. If your UAV applications require high reliability, accurate positioning, and strong resilience to GNSS degradation, this integrated navigation system provides a powerful and cost-effective solution.