Shanghai, China - September 27, 2023 - CHC Navigation (CHCNAV), a global leader in geospatial solutions, has introduced the i89, a premium, compact IMU-RTK GNSS receiver with visual surveying and 3D modeling capabilities. The i89 GNSS module, powered by CHCNAV iStar 2.0 algorithms, incorporates advanced ionospheric modeling algorithms to achieve high-integrity RTK fix positioning, which is especially critical in regions of intense solar activity. The integration of video photogrammetry into the CHCNAV i89 represents a significant leap forward in achieving comprehensive 3D mapping and surveying projects. More than just an add-on capability, this integration effectively bridges 3D GNSS IMU-RTK surveying and 3D LiDAR + RGB airborne surveying, combining complementary data sources for a more accurate visual representation.
"The i89 Visual GNSS Rover is an ideal solution for surveyors looking to perform high-precision 3D surveying and modeling tasks quickly, accurately, and cost-effectively." Said Rachel Wang, Product Manager at CHC Navigation. "In the era of convergence towards 3D surveying, mapping, and engineering, the CHCNAV Visual GNSS RTK Series is proving to be the affordable 'must have' surveying system that enables field crews to perform a wide range of tasks from simple point measurement to complex volume calculation and joint 3D reality capture."
Figure 1. The CHCNAV i89 features the latest GNSS, Auto-IMU, RTK and dual camera technologies.
OPTIMAL MITIGATION OF THE UPCOMING SOLAR IONOSPHERIC PEAK
The i89 delivers unmatched performance with its 1408-channel full-GNSS module and integrated SoC. Its narrow-band multipath mitigation technology improves data quality by over 20%, ensuring accurate RTK measurements, and its hybrid GNSS engine provides unmatched accuracy and reliability. Robust CHCNAV iStar2.0 algorithms increase fix rates in harsh environments and reliably mitigate ionospheric interference to always provide the most reliable RTK positioning in low latitude regions with high ionospheric activity.
3D SURVEYING AND MODELING WITH VISUAL POWER
Equipped with CHC Navigation's latest dynamic panoramic image capture mode, the i89 enables 3D modeling of buildings and facades, as well as the extraction of survey-grade 3D coordinates from real video, making it possible to accurately measure points where GNSS signals are obstructed, or access is difficult or unsafe. The i89 also allows drone data to be merged with GNSS RTK data for effective 3D modeling, overcoming the typical rendering distortions associated with drone-mounted cameras. The i89's compatibility with industry-standard 3D modeling software ensures flexibility and convenience for users.
Figure 2. The 3D modeling of a monument in the park with the help of i89.
AUGMENTED REALITY AND IMU SIMPLIFY EVERYDAY TASKS
The i89's built-in, interference-free 200 Hz Auto-IMU eliminates the need for manual initialization and provides reliable measurements. Automatic pole tilt compensation guarantees accuracy within 3 cm over a 60-degree tilt range. By tightly integrating Vision and IMU, the i89 supports Augmented Reality navigation and Virtual Pole Tip™ (VPT™) stakeout, saving even the most inexperienced operator up to 50% of the time.
Figure 3. CHCNAV i89 AR visual navigation and stakeout features in use.
FIELD-PROVEN RUGGED DESIGN
The i89's compact design weighs just 750 grams and seamlessly integrates GNSS, IMU, and two cameras into a pocket-sized, IP68-rated receiver that can withstand a 2-meter drop from a survey pole. Its battery provides up to 16.5 hours of autonomy, and its intelligent 18W fast charge provides a full charge in just 3 hours, increasing operational efficiency and further extending battery life.
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About CHC Navigation
CHC Navigation (CHCNAV) creates innovative mapping, navigation, and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,700 employees, today, CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies.
