1. Overview of Modern 3D Mapping
With the booming development of digital infrastructure construction, 3D mapping technology has become a core tool for industrial and urban informatization upgrading. More and more global enterprises are increasing R&D investment to realize unmanned surveying and intelligent inspection of various infrastructure and industrial assets.
Traditional aerial surveying has long served as a mainstream 3D mapping method. Today, supported by iterative updates of professional processing software, 3D mapping technology is widely popularized in multiple industries, forming an efficient and accurate digital surveying solution.
2. Wide Industry Applications of 3D Mapping
3D digital models are indispensable throughout the whole process of project planning, data inventory, engineering construction and daily operation maintenance. The technology covers a wide range of fields, including real estate surveying, precision agriculture, urban planning, forest resource management, oil and gas exploration, mobile mapping, cellular network layout and traffic engineering design. It provides accurate data support for the digital and intelligent transformation of various industries.
3. Core Advantages of 3D Aerial Mapping
Compared with traditional manual ground surveying and mapping methods, aerial 3D mapping has prominent comprehensive advantages. It greatly saves labor costs and shortens project cycles, with higher overall work efficiency. Meanwhile, aerial surveying can capture unique aerial perspectives, realize high-precision measurement of terrain, buildings and landform features, and restore nearly real 3D scene information of the measured area, which cannot be achieved by conventional surveying methods.
4. INS: The Core Guarantee for High-Quality Mapping Data
UAVs have gradually replaced helicopters and fixed-wing aircraft as the mainstream carrier for 3D mapping, thanks to their higher safety, flexibility and data stability. However, UAV mapping faces obvious environmental interference: during long-distance operations (2–3 kilometers away from the operator), flight trajectories are easily affected by wind direction and airflow.
Tiny errors in aircraft attitude and position will directly lead to distortion and failure of LiDAR point cloud data, seriously reducing the accuracy and availability of 3D modeling results. This makes high-reliability inertial navigation systems (INS) a necessary core configuration for professional 3D mapping.
A complete INS consists of IMU inertial measurement unit, GNSS receiver and multi-sensor fusion algorithm. Different from single satellite positioning, it can work stably in complex sheltered scenarios such as urban canyons, bridge tunnels, mountainous areas, underground garages and dense forests where GNSS signals are lost or interrupted. It continuously outputs accurate position, attitude and speed data to ensure uninterrupted and high-precision mapping operations.
LiDAR collects massive high-precision 3D point cloud data for scene reconstruction, while INS provides precise spatial positioning and attitude reference for each point cloud. The high matching of the two is the key to generating standard, usable 3D models. At present, many professional surveying enterprises including Aeroscout rely on high-performance INS + LiDAR integrated solutions to complete high-standard aerial mapping tasks.
5. Product Introduction: LIKOV FN-100 Fiber Optic Inertial Navigation System
The FN-100 is a high-performance fiber optic inertial navigation system independently developed for high-precision surveying, navigation and attitude measurement scenarios. It supports high-precision autonomous alignment without external auxiliary signals and outputs inertial-level position, speed and attitude data stably for a long time.
5.1 Core Hardware Configuration
The system adopts a high-precision inertial measurement unit composed of three-axis fiber optic gyroscopes (FOG) and three orthogonal quartz flexible accelerometers. The FOG accurately senses the angular motion of the carrier and outputs proportional digital angular velocity signals; the high-stability accelerometer captures carrier linear acceleration data. Benefiting from the inherent advantages of fiber optic gyroscopes, the product features long service life and ultra-high operational reliability.
5.2 Diversified Navigation & Fusion Capabilities
FN-100 supports multiple working modes and adapts to airborne, vehicle-mounted, marine and underwater multi-scenario applications. In marine scenarios, it can realize fully autonomous alignment and stable navigation in compass mode without any external signal assistance.
It can be seamlessly fused with GNSS, DVL Doppler log and ODO odometer to build a dual-mode complementary combined navigation system. Based on optimal estimation algorithm, it outputs high-frequency, stable and continuous inertial-level navigation data. Matched with satellite base stations, it supports RTK real-time differential positioning and post-data processing, achieving arc-second level attitude reference and centimeter-level positioning accuracy. In addition, it can realize three-axis wave parameter measurement for marine environment monitoring.
5.3 Core Product Advantages
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Inertial-grade ultra-high navigation accuracy
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High operational reliability and low later maintenance cost
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Flexible working modes, adaptable to various carrier platforms
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Excellent environmental adaptability, resistant to harsh working conditions
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Ultra-small size, lightweight and ultra-low power consumption
5.4 Main Application Scenarios
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Positioning and navigation for ships, UUVs and various marine equipment
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Multi-beam sonar and LiDAR 3D mapping measurement
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Local precision detection and stable platform attitude control
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Aerial and ground high-precision surveying and mapping
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High-precision positioning and directional measurement projects
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