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Bynav C1 GNSS RTK OEM receiver


C1-8S is embedded with Bynav new generation of RTK algorithm engine and can quickly calculate the accurate relative position of antennas and the direction of the line connecting the phase center of two antennas, which is expressed as deviation from True north. It supports GPS L1/L2, GLONASS G1/G2, BDS B1/B2, BDS-3, GALILEO E1/E5B, QZSS, can be used as RTK rover station or base station, offering centimeter-level accuracy and low power consumption, as well as serial, ethernet and CAN interfaces.

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Built in C1 GNSS OEM receiver board, T1 is based on Bynav GNSS Baseband ASIC Alita and RFIC Ripley and embedded with Bynav’s new generation REAL (Ransac Enhanced Advanced Location) algorithm engine, capable of providing full-constellation and multi-frequency RTK positioning and dual-antenna heading.

T1 GNSS high-precision positioning and heading receiver is built-in C1 GNSS OEM board, the rugged housing is plug-and-play and made of high-quality aluminum alloy, widely used in driver license testing, autonomous driving, precision agriculture, surveying and mapping, deformation monitoring, UAV, robotics and other fields.

REAL Positioning Engine

The RANSAC (Random Sample Consensus) based autonomous integrity monitoring algorithm is integrated for the observation anomalies caused by multi path and interference in urban environments. It can monitor pseudo-range, carrier phase, and Doppler observations in real-time and accurately eliminated the faulty satellites, thus achieving more stable positioning results.

The movement of the user is calculated by using the carrier phase difference between the adjacent epochs, performs fusion filtering with the RTK positioning result to have a smoother solution. all the tracked satellites of the rover are fully used in the solution when the base station satellite is blocked, and the smooth positioning result can still be maintained when the RTCM correction data is interrupted for a long time.

In the urban dynamic environment, the loss of lock and re-tracking of the carrier phase are frequent. After re-tracking, the frame synchronisation (Frame Sync) is needed to eliminate the half-cycle ambiguity and then used for the RTK integer ambiguity solution. Bynav receiver integrates carrier half-cycle ambiguity repair technology based on navigation message prediction and matching (patent authorized), which quickly eliminates half-cycle ambiguity, thus improving satellite availability, and effectively shorten the recovery time.

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 on-board SD card to back-up local data.
  •  Extra low latency
  •  Optimal performance in multi path mitigation, anti-interference and anti-blockage.
  •  9~36V wide voltage input, overcurrent and reverse connection protection
  •  Two RS232 serial ports and one RJ45 Ethernet port

GNSS

C1-8S

C1-8D

C1-FS

C1-FD

Functions

Dual-Antenna Heading

Single Point Positioning

RTK

Timing

Reference Station Mode

Rover Station Mode

Built-in Deformation Monitoring

Output of Dual-Antenna
Raw Observations

NTRIP

Frequency

GPS

L1CA/L1C,L2C, L2P

L1CA/L1C,L2C, L2P,L5

GLONASS

G1, G2

G1, G2

BDS

B1I, B2I

B1I,B2I/B3I

BDS-3

B1I/B1C, B2a/B2b

B1I/B1C, B2a/B2b/B3I

GALILEO

E1, E5b/E5a

E1, E5b/E5a

QZSS

L1CA/L1C,L2C,L5

IRNSS

L5

SBAS

L1CA

Measurement Accuracy

Carrier phase

≤1mm(RMS)

Pseudorange

L1CA,L2C,L2P,G1,G2

≤ 0.12m(RMS)

Other signals

≤ 0.06m(RMS)

Single Point Accuracy

Horizontal

1.5m RMS

Vertical

2.5m RMS

RTK Accuracy

Horizontal

1.0cm + 1ppm RMS

Vertical

1.5cm + 1ppm RMS

Heading Accuracy

0.2°/m RMS

0.2°/m RMS

Timing Accuracy

20ns RMS

Velocity Measurement Accuracy

0.05m/s RMS

Maximum Data Rate

Raw Data

5Hz

5Hz

10Hz

10Hz

RTK

5Hz

5Hz

10Hz

10Hz

RTK+Heading

5Hz

10Hz

C1-8S GNSS OEM receiver board has the following features:

  • Based on Bynav GNSS Baseband ASIC Alita and RFIC Ripley
  • Full constellation and multi frequency, including L5 and BDS-3
  • Enhanced connection options including serial, CAN and Ethernet
  • Support GNSS/INS deeply coupled algorithm, raw data output and post processing
  • Cost affordable

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