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C2 Series

GNSS High-precision Positioning and Heading Module

Based on Alice, the new 22nm process high-performance GNSS SOC from Bynav, C2 features high-precision measurement and navigation engine, so it is capable of dealing with harsh environments such as satellite signal interference and outage and providing continuous, real-time and reliable high-precision position.

 

Model: C2-M20/C2-M20-U、C2-M20D/C2-M20D-U

Check Other Models and Specifications

GNSS Board

Based on Alice, a new generation of high-performance automotive-grade GNSS SOC chip in 22nm process from Bynav Technology, the C2 GNSS high-precision positioning and heading board has a built-in high-precision measurement engine and navigation engine, which can effectively cope with harsh environments such as satellite signal interference and loss, and quickly get the accurate relative position of dual antennas and the angle (azimuth) between the baseline of dual antennas and true north. At the same time, by receiving the differential data of the base station, real-time carrier phase differential positioning (RTK) can be realized, providing continuous, real-time, and credible high-precision position and attitude for the vehicle.

Lower Consumption, Better Dynamic Performance Against Signal Blockage

Features

Features

- Based on Bynav GNSS Baseband ASIC Alita and RFIC Ripley.
- Support full-constellation, full-frequency RTK positioning and dual-antenna heading.
- Support modern signal systems such as BDS-3 and Galileo.
- Enhanced connection options including serial, CAN and Ethernet.
- Support GNSS/INS deeply coupled algorithm, raw data output and post processing.
- Support on-board TF card to back-up local data.
- Optimal performance in multipath mitigation, anti-interference and anti-blockage.
- Compact size and low power consumption.

 REAL Positioning Engine

REAL Positioning Engine

To deal with the anomalies of the observations caused by multipath and interference in the urban environment, the integrity monitoring and partial ambiguity resolution algorithm based on RANSAC (Random Sample Consensus) are integrated. The algorithm can monitor the pseudorange, carrier phase and Doppler observations in real time, and can accurately eliminate faulty satellites when there are many abnormal satellites, which improves the fault tolerance and fixed rate, and makes the positioning solution results more robust.

Adaptive Anti-jamming Algorithm Within Self-designed SoC

Adaptive Anti-jamming Algorithm Within Self-designed SoC

For anti-interference in complex electromagnetic environments, high-quantization bit signal preprocessing and adaptive interference suppression are carried out for common interference signals from vehicle anti-tracking equipment, radar and airport signal towers, which greatly improves the availability and integrity of high-precision positioning and heading in vehicle scenarios.

NRTK/PPP/PPP-RTK

NRTK/PPP/PPP-RTK

It supports all NRTK differential services, BDS-3 B2b PPP and prevailing PPP-RTK differential services. It makes full use of the multi-frequency signals of BeiDou, GPS, and Galileo to greatly accelerate the PPP convergence speed and improve the availability of high-precision positioning.

Carrier Semi-cycle Ambiguity Correction Technology

Carrier Semi-cycle Ambiguity Correction Technology

Under dynamic conditions in cities, losing lock of carrier phase and reacquisition are relatively frequent. After the carrier phase is retracked, it is generally necessary for Frame Sync to be completed to remove the semi-cycle ambiguity, then the carrier phase can be used for the full-cycle ambiguity solution.  C2 GNSS Receiver integrates the patented carrier semi-cycle ambiguity correction technology based on message prediction and matching, which can quickly eliminate the semi-cycle ambiguity after the satellite signal reacquisition, increase the number of available satellites, and effectively shorten the time to recover from complete signal blockage.

Performance

Model

  C2-M20  

C2-M20-U

 C2-M20D 

C2-M20D-U

Functions/Performance

Base Mode

Rover Mode

NTRIP

-

Signal Tracking

BDS

B1I, B2I, B3I, B1C*, B2a, B2b (PPP)*

GPS

L1 C/A, L1C, L2, L5

GLO

G1, G2

GAL

E1, E5a, E5b, E6*

QZSS

L1 C/A, L1C, L2, L5, L6 (CLAS)*

NavIC(IRNSS)

L5

L-Band

Supported*

Not Supported

SBAS

Supported*

Not Supported

Horizontal

SPP

1.5m (RMS)

RTK

1cm + 1ppm (RMS)

Vertical

SPP

2.5m (RMS)

RTK

1.5cm + 1ppm (RMS)

Max Data Rate

GNSS Observations

50Hz

GNSS Results

10Hz

5Hz

FTTF

Cold Start

≤30s

Hot Start

≤5s

RTK Initialization

≤5s

Re-acquisition

≤1s

Timing

20ns (RMS)

Velocity

0.03m/s (RMS)

Heading -

0.2°/1m baseline (RMS)

Electrical

Power Consumption (Typ.)

0.5W

0.6W

Input Voltage

+3.15V~+3.45V

Physical

Size

71mm×46mm×11mm

Weight

17.4g

Price

Quote

Quote

 

*optional or special firmware is required

 

型号

C2-M20

C2-M20-U

C2-M20D

C2-M20D-U

接口

Type-C

-

×1

-

×1

UART

×3

×2

×2

×2

ETHERNET

×1

×1 - ×1

CANFD

-

×1 ×1 ×1

SPI*

-

×1 - -

I2C*

-

×1 - -

PPS

×1

×1 ×1 ×1
EVENT_IO

×1

×2 ×1 ×1

*optional

Applications

Applications

It can be widely used in surveying, mapping, autonomous driving, unmanned systems (UAV, UAS etc.), driver license testing, digital construction, precision agriculture, deformation monitoring, industrial automation control and many other fields.

  • Surveying and Mapping
    Surveying and Mapping
  • Habour automation
    Habour automation
    Habour automation
  • Precision Agriculture
    Precision Agriculture
    Precision Agriculture
  • Driver License Testing
    Driver License Testing
    Driver License Testing
  • Deformation Monitoring
    Deformation Monitoring
    Deformation Monitoring

Excellent Quality

Excellent Quality

Bynav successfully passed ISO 9001 quality system and acquired Beidou navigation civil service qualification and other certifications, with RoHs, CE FCC international certificates and meet automotive-grade requirements.

GNSS Board

R&D and Process Quality Control

Lead-Free Process and Gold Plating PCB

Continuous trial run before mass production

Welding Defect Inspection (AOI + X-RAY)

High and Low Temperature Cyclic Aging and Impact Test

Double Deviation Testing

 

Modern Quality Management System

All-round Quality Management

8D Report, PDCA and other quality management tools

Customer Satisfaction

Trial application

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