Introducing the i89: A Revolutionary GNSS Receiver for 3D Surveying

CHC Navigation (CHCNAV) has unveiled the i89, a state-of-the-art compact IMU-RTK GNSS receiver designed for visual surveying and 3D modeling. Utilizing the advanced CHCNAV iStar 2.0 algorithms, this device employs refined ionospheric modeling techniques to deliver high-integrity RTK positioning, which is especially vital in areas experiencing critically important solar activity.

Transforming 3D Mapping with Video Photogrammetry

The incorporation of video photogrammetry into the CHCNAV i89 marks a pivotal advancement in the realm of 3D mapping and surveying. This innovation effectively merges 3D GNSS IMU-RTK surveying with 3D LiDAR and RGB airborne surveying, allowing for a more precise visual portrayal by combining various data sources.

Advanced Features for Enhanced Accuracy

Equipped with a 1408-channel full-GNSS module and an integrated System on Chip (SoC), the i89 boasts narrow-band multipath mitigation technology that enhances data quality by over 20%. This ensures precise RTK measurements, while its hybrid GNSS engine guarantees exceptional accuracy and reliability.

Dynamic Imaging and 3D Modeling capabilities

The i89 is outfitted with CHC Navigation’s latest dynamic panoramic image capture mode, facilitating the 3D modeling of structures and facades. It allows for the extraction of survey-grade 3D coordinates from real-time video, enabling accurate measurements in areas were GNSS signals may be obstructed or where access is challenging or unsafe. Additionally, the i89 can integrate drone data with GNSS RTK data, effectively addressing the common rendering distortions found in drone-mounted cameras. its compatibility with leading 3D modeling software provides users with flexibility and ease of use.

Reliable Performance and User-Amiable Design

Weighing only 750 grams, the i89 combines GNSS, IMU, and dual cameras into a compact, IP68-rated receiver that can endure a 2-meter drop from a survey pole. Its built-in, interference-free 200 Hz Auto-IMU eliminates the need for manual initialization, ensuring dependable measurements. The automatic pole tilt compensation feature guarantees accuracy within 3 cm across a tilt range of 60 degrees. By seamlessly integrating vision and inertial measurement, the i89 supports Augmented Reality navigation and Virtual pole Tip (VPT) stakeout, considerably reducing time for operators of varying experience levels.

Extended Battery Life and Fast Charging

The i89’s battery offers up to 16.5 hours of operational autonomy, and its bright 18W fast charging capability allows for a full recharge in just 3 hours, enhancing operational efficiency and prolonging battery life.

Expert Insights on the i89

Rachel Wang, product manager at CHC Navigation, stated: “The i89 Visual GNSS Rover is the perfect solution for surveyors aiming to conduct high-precision 3D surveying and modeling tasks swiftly, accurately, and economically. As the industry moves towards 3D surveying, mapping, and engineering, the CHCNAV visual GNSS RTK Series is emerging as an essential, cost-effective surveying system that empowers field crews to tackle a diverse array of tasks, from simple point measurements to intricate volume calculations and complete 3D reality capture.”