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CHCNAV i93

Advanced IMU-RTK with Visual Surveying

The i93 Visual IMU-RTK GNSS receiver combines advanced GNSS, IMU, and dual-camera video photogrammetry to deliver a streamlined and intuitive user experience. Its 3D visual stakeout and offset measurement features help improve efficiency on site, particularly across construction and civil projects.

Powered by CHCNAV’s iStar algorithm, it leverages multi-band GNSS channels and hybrid positioning to maintain reliable accuracy in challenging conditions—making it a versatile, all-round solution for a wide range of Australian surveying applications.

Features

Visual Surveying

Dual cameras extract survey-grade 3D coordinates improving measurement efficiency.

Visual Stakeout

Guidance by a clear, eye-catching directional information.

3D Modeling

Dynamic panoramic video capture.

Auto-IMU Technology

200 Hz Auto-IMU for automatic pole tilt compensation.

Benefits

The i93 cameras provide an immersive 3D visual stakeout experience. With the 3D visual view, surveyors are guided by a clear, bold directional arrow and real-time distance to the stakeout point and lines marked directly on the ground.

The i93 quickly delivers survey-grade 3D coordinates from real-world video capture, making it easy to survey hard-to-reach, signal-obstructed, or hazardous points in the field—such as areas under overpasses, eaves, or near power poles.

By merging drone data with the i93's dynamic panoramic video capture, 3D joint modeling of buildings and facades is easily achieved. Compatibility with standard 3D modeling software provides flexibility and convenience.

The i93's Auto-IMU provides simple and reliable pole tilt compensation, delivering accuracy to within 3 cm over a 60-degree tilt range without the need for manual initialization.

Experience unmatched GNSS performance with the i93’s 1408-channel receiver. Supporting GPS, GLONASS, Galileo, BeiDou, QZSS and SBAS constellations, the iStar2.0 algorithm provides over 96% reliable fix rate in areas of high solar activity.

Industry Use Cases

Topographic Survey

Boundary Survey

As-built Survey

3D Modelling

Product Specifications

Positioning

  • GNSS : Full GNSS
  • IMU : 200 Hz
  • Precision max. : 0.8cmH / 1.5cmV

Physical

  • Weight : 1.15 kg
  • Dimensions : 152 x 81 mm
  • Battery life : Up to 34 hours RTK rover

Connectivity

  • Wireless : Bluetooth, Wi-Fi
  • Cellular : 4G LTE
  • Modem : 410 - 470 MHz, Rx/Tx

Sensors

  • Camera: Dual

SIMAR Geospatial Pty. Ltd.

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