UAV GNSS module
Global Navigation Satellite System(GNSS), it provides UAV with geographic location, time and speed information. General GNSS module support receiving four global satellite navigation systems, global positioning system (GPS), Glonas satellite navigation system (GLONASS) and GALILEO satellite navigation system (GALILEO) and China’s Beidou Satellite Navigation System (BDS).Some GNSS modules also integrate flight control status lights, safety switches and buzzers to improve the integration level of UAV. In addition, there are RTK and PPK GNSS modules. Compared with common GNSS modules, RTK and PPK have higher positioning accuracy, reaching the centimeter level.
The C-RTK 2HP product is an all-satellite & multi-frequency high precision positioning & heading module. A new generation of high-performance GNSS SoC chip is used, and a single chip performs baseband and RTK solution calculation functions. The RTK processing capacity is increased by more than 80%, and the positioning service of 50+ satellites in the RTK state and the recapture time within 1s are obtained. The continuity and reliability of positioning and orientation output in complex environments are effectively dealt with. The single module supports heading function, and supports inertial navigation function. Integrated STM32F4 processor, support DroneCAN protocol for controller communication, built-in RM3100 industrial grade electronic compass and IMU sensor, open-source code allows developers to freely develop custom functions.
The C-RTK 9Ps is a multi-satellite & multi-frequency GNSS system. It also supports dual GPS for yaw which can replace compasses，is useful when in complex magnetic environments such as close to power lines. It is a very cost-effective centimeter-level RTK module compatible with PX4/ ArduPilot open-source controllers. It is an ideal choice for Unmanned Systems mapping, agricultural applications, high-precision takeoff and landing, ship takeoff and landing and other applications requiring real-time high-precision navigation.
C-RTK 2 is a high-performance PPK/RTK positioning module created by CUAV for professional application fields such asUnmanned System saerial survey. It integrates light appearance, industrial grade IMU, multi-satellite and multi-frequency satellite receiver, supports both RTK centimeter-level positioning navigation and RAW data recording for post-differential calculation. Supports shutter triggering and hotshoe synchronization. It adopts CAN bus protocol and is compatible with PX4/ ArduPilot open-source controller. It can be applied to various specifications of multi-rotors, helicopters and other industrial use Unmanned Systems.
Support Four Satellites u-blox M10 Satellite Receiver System. Precise Positioning Integrate Dual SAW + LNA. High-Performance STM32H5 Processor Self-Developed M4C Architecture Software. Strong Anti-lnterference Built-In ST llS2MDc Electronic Compass. Adopt DroneCAN Protocol Compatible with Mainstream Open Source Platform. Multi-Functional RGB Status Light Controller Disarming Switch.
NEO 3x build in M9N receiver with concurrent reception of 4 GNSS that can adapt to multiple harsh environments. Designed with IP66 standard, it is sealed against dust and rain. It has STM32F4 series processor, ICP2100 barometer, ublox M9N module and RM3100 industrial compass. It supports CAN bus communication based on DroneCAN protocol, and the farthest communication distance can reach 1.5m.
NEO 3 Pro is a M9N navigation product using the DroneCAN communication protocol. Integrated positioning system, magnetic compass, control status light, control siren, barometer in one, industrial grade magnetic compass, can receive four major satellite systems navigation and positioning signals at the same time.
NEO 3 is a cost-effective M9N navigation and positioning product with a single point positioning accuracy of up to 0.7m. It integrates positioning system, magnetic compass, controller status light, controller alarm, andbarometer, and can receive signals from four major satellite navigation and positioning systems simultaneously.
How to Distinguish Between Different GNSS
CUAV Products | C-RTK 9Ps | C-RTK 2HP | C-RTK 2 |
| Product Type | Centimeter-Level High-Precision Positioning Module | High-Precision Positioning and Heading Module | RTK+PPK High- Precision Positioning Module |
| Receiver Type | u-blox F9P | um982 | u-blox F9P |
| GNSS Bands | GPS: L1C/A、L2C GLONASS: L1OF、L2OF Galileo: E1B/C Galileo: E5b BeiDou: B1I、B2I | BeiDou: B1I、B2I、B3I GPS: L1C/A、L2P/L2C、L5 GLONASS: L1、L2 Galileo: E1、E5a、E5b | GPS：L1C/A,L2C GLONASS：L1OF,L2OF Galileo：E1B/C,E5b BeiDou：B1l,B2l |
| Position Accuracy | RTK: 0.01m+1ppm CEP Single Point: 1.5m CEP SBAS: 1.0m CEP | Single Point: 1.5m (Horizontal) /2.5m (Vertical) DGPS: 0.4m+1PPM (Horizontal) /0.8m+1PPM (Vertical) RTK: 0.8cm+1PPM (Horizontal) /1.5cm+1PPM (Vertical) | RTK Horizontal: 0.01m+1ppm (RMS) RTK Vertical: 0.02m+1ppm (RMS) Single Point Horizontal: 1.5m (RMS) |
| Dual-Antenna Direction Finding | Dual modules can form a dual-antenna direction finding system | Single Module Positioning and Heading | Not Support |
| Compass | IST8310 | RM3100 | RM3100 |
| Operating Temperature | -40 ~ +85℃ | -20 ~ +85℃ | -20 ~ +85℃ |
| Weight | 30 g | 40 g | 39 g |
| Size | 47.0 × 32.0 × 12.2 mm | 50 × 37 × 17 mm | 56 × 33 × 16.5 mm |
CUAV Products | NEO 3 | NEO 3 Pro | NEO 3x | NEO 4 SE |
| Processor | / | STM32F412 | STM32F412 | STM32H5 |
| Sensor | Compass: IST8310 | Compass: RM3100 Barometer: ICP- 20100 | Compass: RM3100 Barometer: ICP- 20100 | Compass: llS2MDC |
| GNSS Receiver | u-blox M9N | u-blox M9N | u-blox M9N | u-blox M10Q |
| Frequency Band | GPS：L1C/A GLONASS：L10F BeiDou：B1I Galileo：E1B/C | GPS：L1C/A GLONASS：L10F BeiDou：B1I Galileo：E1B/C | GPS：L1C/A GLONASS：L10F BeiDou：B1I Galileo：E1B/C | GPS：L1C/A GLONASS：L10F BeiDou：B1I/B1C Galileo：E1B/C |
| Nav. Update Rate | 25Hz (MAX) | 25Hz (MAX) | 5Hz (Default), 25Hz (Max) | 5Hz (Default), 25Hz (Max) |
| Horizontal Accuracy | 2.0 m (Highest measured value is 0.7 m) | 2.0 m (Highest measured value is 0.7 m) | 1.5 m (Highest measured value is 0.7 m) | 1.5 m CEP |
| Acquisition | Cold Start：24s Hot Start：2s Aided Start：2s | Cold Start：24s Hot Start：2s Aided Start：2s | Cold Start：24s Hot Start：2s Aided Start：2s | Cold Start：27s Hot Start：1s Aided Start：1s |
| Protocol | UART+IO+I2C | DroneCAN | DroneCAN | DroneCAN |
| Wave Filtering | SAW+LNA+SAW | SAW+LNA+SAW | SAW+LNA+SAW | SAW+LNA+SAW+LNA |
| Input Voltage | 4.7 ～ 5.2 V | 4.7 ～ 5.2 V | 4.7 ～ 5.2 V | 4.7 ～ 5.2 V |
| Operating Temperature | -10 ～ +70 ℃ | -10 ～ +70 ℃ | -10 ～ +70 ℃ | -10 ～ +80 ℃ |
| Protection Level | / | / | IP66 | / |
| Size | 60 × 60 × 16 mm | 60 × 60 × 16 mm | 67.0 × 67.0 × 21.2 mm | 60 × 60 × 16.1 mm |
| Weight | 33 g | 33 g | 46 g (Cable Excluded) | 33 g |