Deskripsi
CHCNAV i76 Palm-Sized GNSS
The i76 Palm Visual RTK is a compact, lightweight surveying tool engineered for precision and user-friendliness in challenging conditions. It features IP68 protection, 2-meter drop resistance, and a robust biomimetic design for enhanced durability. Weighing just 450g, the i76 is 40% lighter and 50% smaller than industry standards. It is equipped with integrated GNSS, IMU, and 95° wide-angle dual cameras, a one-button operation and synchronized LED to significantly improve surveying efficiency. The CAD+AR visual stakeout can enhance the overall project stakeout efficiency by 40%.
The 4th Gen air-medium GNSS antenna of the i76 enhances stability across all GNSS constellations and frequencies, achieving an excellent RTK fixed rate with iStar 2.0 technology, which is particularly effective in regions with high solar activity. Its 5th Gen Ultra-IMU technology improves accuracy by 30%, even when surveying with a 60° range pole tilt. With a powerful battery supporting over 17 hours of continuous use, the i76 is ideal for professionals who value precision, adaptability, and innovation in their surveying work.
Features
Augmented Reality
- Dual 2 MP cameras with a 95° field of view.
Superior GNSS
- Reach reliable fixed RTK rate with advanced GNSS tracking.
Ultra-IMU
- 5th generation IMU for high accuracy and tilt compensation.
Lightweight
- Extremely compact and weighing just 450g.
Specifications
GNSS Performance |
|
| Channels | 1408 channels with iStar2.0 |
| GPS | L1C/A, L2C, L2P(Y), L5 |
| GLONASS | L1, L2, L3* |
| Galileo | E1,E5a,E5b,E6* |
| BeiDou | B1I, B2I, B3I, B1C, B2a, B2b* |
| QZDSS | L1C/A, L1C, L2C, L5 |
| NavIC/IRNSS | L5 |
| SBAS | L1, L5 |
GNSS Accuracies |
|
| Real Time Kinematics (RTK) | Horizontal: 8 mm + 1 ppm RMS Vertical: 15 mm + 1 ppm RMS Initialization time: < 10 s Initialization reliability: >99.9% |
| Post – Processing Kinematics (PPK) | Horizontal: 3 mm + 1 ppm RMS Vertical: 5 mm + 1 ppm RMS |
| PPP | Support PPP-B2b H: 10cm | V: 20cm |
| High-Precision Static | Horizontal: 2.5 mm+ 0.1 ppm RMS Vertical: 3.5 mm+ 0.4 ppm RMS |
| Static and Rapid Static | Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm + 0.5 ppm RMS |
| Code Differential | Horizontal: 0.4 m RMS Vertical: 0.8 m RMS |
| Autonomous | Horizontal: 1.5 m RMS Vertical: 2.5 m RMS |
| Positioning Rate | 1 Hz, 5 Hz and 10 Hz |
| Time to First Fix | Cold start: < 45 s Hot start: < 10 s Signal re-acquisition: < 1 s |
| IMU Update Rate | 200 Hz, AUTO-IMU |
| Till Angle | 0-60° |
| RTK Tilt-Compensated | Additional horizontal pole-tilt uncertainty typically less than 8 mm + 0.7 mm/° tilt down to 30° |
Environments |
|
| Temperature | Operating: -40°C to +65°C (-40°F to +149°F) Storage: -40°C to +85°C (-40°F to +185°F) |
| Humidity | 100% non-condensation |
| Ingress Protection | IP68 (according to IEC 60529) |
| Drop | Survive a 2-meter pole-drop |
| Vibration | Compliant with ISO 9022-36-08 and MIL-STD-810G – 514.6-Cat.24. |
| Waterproof and Breathable Membrane | Prevent water vapor from entering under harsh environments. |
Electrical |
|
| Charging Time | Full charge in 4.5 hours |
| Operating Time on Internal Battery | UHF/ 4G RTK Rover w/o camera: up to 17 h Visual Stakeout: up to 10 h Static: up to 22 h |
| Charging Spec | Type-C 5 V / 2 A |
| Hardware | |
| Size (L x W x H) | Φ106 mm x 55.6 mm (Φ 4.17 in × 2.1 in) |
| Weight | 450 g (0.99 lb) |
| Front Panel | 2 synchronized LED, 1 button |
| Tilt Sensor | Calibration-free IMU for pole-tilt compensation. Immune to magnetic disturbances |
Cameras |
|
| Sensor Pixels | Dual cameras with 2 MP each |
| Field of View | 95° ± 3° |
| Video Frame Rate | 30 fps |
| Aperture | F2.4 |
| Features | LandStar software, support Visual Navigation, CAD AR Visual Stakeout |
Communication |
|
| Wireless Connection | NFC for device touch pairing |
| Wi-Fi | Wi-Fi 2.4G 802.11 b/g/n Wi-Fi 5G 802.11ac |
| Bluetooth® | v 4.2, backward compatible |
| Ports | 1 x USB Type-C port (external power, data download, OTG firmware update) 1 x UHF antenna port (SMA female) |
| UHF Radio | Internal Rx Only: 410 – 470 MHz Protocol: CHC, Transparent, TT450 Link rate: 9600 bps to 19200 bps |
| Data Formats | RTCM 2.x, RTCM 3.x, CMR(8) input / output HCN, RINEX 2.11, 3.02 NMEA 0183 output NTRIP Client, NTRIP Caster |
| Data Storage | 8 GB high-speed memory |
Compliance with Laws and Regulations |
|
| International Standards | IGS Antenna Calibration, IEC 62133-2:2017+A1, IEC 62368-1: 2014, EN 62368-1:2014+A11:2017, UN Manual Section 38.3 |
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