The surveying profession has long been characterized by it’s need for accuracy and flexibility, but the latest technological innovations are transforming this field.
Leading this change is CHC Navigation (CHCNAV), wich has introduced hybrid GNSS RTK, IMU, and vision technologies that can be utilized on both unmanned aerial vehicles and ground-based applications. These advancements aim to optimize workflows,enhance precision,and improve safety for surveyors working in demanding environments.
The launch of the i93 GNSS RTK Receiver in 2023, followed by the i76 GNSS receiver, represents a major advancement in surveying productivity. By incorporating dual-camera systems alongside cutting-edge positioning technologies, CHCNAV is establishing new benchmarks within the industry.
The Importance of Vision Technology in Surveying
Conventional GNSS RTK systems depend on satellite signals and base stations for accurate location determination. However, physical barriers such as bridges, buildings, and thick vegetation can often interfere with these signals. Conducting surveys in such challenging conditions—whether on steep inclines, busy roads, or densely populated urban areas—can be both time-consuming and hazardous.
CHCNAV’s integration of dual-camera vision technology into its GNSS receivers directly addresses these obstacles. By combining high-resolution imaging with real-time positioning, surveyors gain a robust tool for data collection, allowing for safer and more efficient operations while ensuring high accuracy.
Hybrid technology: Merging GNSS RTK, IMU, and Vision
central to CHCNAV’s innovation is the amalgamation of various technologies.
- GNSS RTK delivers centimeter-level accuracy in real-time, ensuring that even the most complex survey tasks are executed with precision.
- The Inertial measurement Unit (IMU) tracks movement and orientation, stabilizing data collection in dynamic or obstructed environments.
- Dual-camera systems facilitate geo-referenced image capture, synchronized with GNSS and IMU data to generate accurate visual and positional datasets.
This integration equips surveyors with the ability to perform seamless point measurements, create detailed 3D models, and utilize augmented reality (AR) applications, transforming traditional GNSS rovers into multifunctional tools for contemporary surveying demands.
Transforming Workflows: Three Key Applications
1. Vision surveying
Technology
Vision surveying utilizes GNSS RTK positioning combined with dual-camera imaging to enhance accuracy and workflow efficiency. By capturing high-resolution images and correlating them with GNSS data, surveyors can determine precise coordinates for points visible in the imagery, even if those points are not physically reachable.
Benefits
This method,facilitated by CHCNAV’s LandStar8 software,allows surveyors to log coordinates for features like lane markings or distant objects directly from video footage. This approach minimizes on-site time, reduces risks in hazardous areas, and boosts productivity in regions with weak GNSS signals.
2. Augmented Reality Stakeout and visual Navigation
Technology
CHCNAV has integrated AR capabilities into its surveying technology, allowing CAD models to be overlaid onto real-world views through dual-camera systems.The Meta CAD engine, part of LandStar8, enables real-time alignment of virtual designs with actual site features.
Benefits
Traditional stakeout methods often require multiple adjustments to align coordinates, but AR-guided navigation considerably accelerates this process. Surveyors can visualize CAD markers superimposed on live imagery, minimizing errors and ensuring accurate alignment between design plans and on-site layouts.
3. High-Resolution 3D Modeling
Technology
CHCNAV’s GNSS receivers merge GNSS RTK data with dual-camera imaging to create geo-referenced 3D models. These models are generated using photogrammetry software that processes spatially aligned images into high-resolution digital representations of landscapes, structures, and features.
Benefits
This capability streamlines the collection of complex datasets for engineering and planning purposes. By minimizing the need for manual post-processing, surveyors can produce detailed models more quickly and accurately, aiding in project planning and analysis.
Integrating Aerial and Terrestrial Data Seamlessly
For thorough surveys,the integration of aerial and terrestrial data is frequently enough crucial. While drones excel at covering extensive areas,they may struggle with obstructions like eaves or dense foliage.
CHCNAV’s video-based GNSS RTK technology addresses these challenges by capturing precise images of obstructed regions. These images, processed alongside aerial data, correct distortions and fill in missing details.
CHCNAV provides both manual modeling tools and AI-driven cloud-based solutions, allowing for adaptable workflows. Data can be exported to software like CloudCompare or Smart3D for further refinement, ensuring efficient project completion.
In a recent demonstration, CHCNAV showcased the i93 GNSS receiver’s ability to integrate drone data with terrestrial video footage, creating accurate models of challenging areas, such as observation towers and overhangs. This method corrected traditional manual correction inefficiencies, yielding superior results.
Leading the Future of surveying
CHCNAV’s hybrid GNSS, IMU, and vision technology represents more than just innovation; it addresses the meaningful challenges surveyors encounter daily. With tools like Vision Survey, AR Stakeout, and 3D Modeling, CHCNAV empowers professionals to operate more efficiently and safely while achieving unmatched accuracy.
As surveying technology continues to advance, CHCNAV’s dedication to integrating sophisticated systems positions it as a frontrunner in the industry. The i93 and i76 GNSS receivers exemplify the company’s vision for smarter, faster, and more reliable workflows, redefining the possibilities for surveyors globally.
For more facts, visit the CHC Navigation website.
