CHCNAV CGI-230 Automotive-Grade Dual-Antenna RTK GNSS Inertial Navigation System (Tri-band GNSS, 6-axis IMU, 1 cm positioning accuracy, 0.1° heading accuracy, 100 Hz update rate)

The CGI-230 is an automotive-grade inertial navigation system with a full-constellation GNSS module and 6-axis IMU, powered by CHCNAV’s CTCLIB tightly-coupled algorithms. It fuses GNSS, INS, and DR data to provide continuous, high-precision navigation in challenging environments. Compatible with serial, 100Base-T1 Ethernet, and CANFD, it supports multiple communication methods and is adaptable to various vehicle modes.

Use Cases:

 

Automotive

 

Unmanned Vehicles

Robotics

 

Benefits and Performances:

 

Superior Position & Attitude

The tightly integrated dual-antenna GNSS technology and IMU deliver continuous, reliable, high-precision position and attitude data, even in complex environments where GNSS signals are obstructed or lost.

 

 

 

 

Large-scale Deployment

The CGI-230 supports fast batch configuration through instruction injection and upgrade capabilities that include CANFD/Ethernet and DoCAN/DoIP protocols.

Real-Time Data

The fast algorithm minimizes latency, allowing data to be used, shared, and exported in real-time. The GNSS, multipath, and anti-jamming algorithms, powered by the tightly coupled CTCLIB2.0 engine, enhance positioning accuracy in challenging environments.

 

 

 

Calibration

During initial installation, only the lever arm value and mounting angle need calibration. The CTCLIB2.0 algorithm automatically estimates errors and compensates them in the data output, ensuring optimal accuracy.

 

 

 

 

Flexible Solution

Designed for versatility, the CGI-230 supports multiple data interaction modes. It is easy to configure, with data output available via interfaces or internal storage, ensuring high-precision positioning across various working environments.

 

 

 

 

Simplified installation

The CGI-230 requires no additional wheel speed sensors and supports vehicle CAN odometer signals, enabling easy installation and quick transfer between vehicles, saving time and labor.

 

 

 

 

 

Main Features:

 

Advanced Algorithm

Highest positioning accuracy in complex scenarios.

 

 

 

High Performance

Starry Sky RTK for stability, reliability, and high precision.

 

 

 

Rich Functionality

Support gPTP, PPS, UDS diagnostics and fault messaging.

 

 

 

Mass Deployment

100Base-T1 automotive Ethernet communication.

 

 

Main Specifications:

• GNSS : Full GNSS
• Precision max. : 1 cm H / 2 cm V

• Gyroscope bias : 1.8°/h
• Accelerometer bias : ≤15ug

• Ports : Ethernet, CAN, Serial, PPS

• Weight : 0.4 kg
• Dimensions : 154 x 105 x 35 mm

 

Package content:

• GNSS Reciever
• 2 x GNSS antenna
• data cables

 

FAQ 

What is the CTCLIB2.0 Algorithm?

CTCLIB2.0 is CHCNAV's second-generation tightly coupled algorithm platform. It integrates inertial data from the INS with satellite positioning data from the GNSS to enhance positioning accuracy and reliability. This tightly coupled approach enables the system to deliver precise position and velocity information, even when GNSS signals are weak or lost, improving navigation performance in challenging environments. After extensive testing over millions of kilometers, CTCLIB2.0 offers a higher ambiguity resolution rate, smoother trajectories, and more reliable positioning compared to loosely coupled algorithms.

Can the CGI-230 be installed in a car?

Yes, the CGI-230 can be installed in a car. With CTCLIB2.0's multimodal adaptation function, it supports unique algorithm optimization for different platforms. Before use, simply select the appropriate mode to meet the application requirements of various autonomous driving systems.

How is it used in ADAS applications?

GNSS/INS systems provide highly accurate position, attitude, velocity, and time data, forming the basis for vehicle navigation and ADAS operation. This data supports functions like autonomous driving, lane keeping, and automatic emergency braking, serving as a reliable foundation for system optimization.

Which data output can I choose with the CGI-230?

The CGI-230 features a high-performance GNSS chip and IMU, providing advanced tightly coupled algorithms and enhanced POS post-processing capabilities. CHCNAV offers custom protocols such as $GPCHCX and $HCINSPVAZCB, which deliver accurate real-time or post-processed information on position, attitude, velocity, and time.

How to configure the CGI-230?

CGI-230 is configured and queried by commands that can be sent via serial or network interface. The device supports multiple command input and multiple command detection.