X2 Automotive-Grade Positioning Unit

Automotive-grade GNSS+INS

X2 GNSS/INS receiver is an automotive-grade ASIL-B positioning unit, highly integrated and deeply coupled with in-house developed GNSS OEM board and tactical IMU, can effectively tackle with harsh environment such as satellite signal interference or loss, providing stable, continuous, reliable high- precision position and atittude.

Available soon in the second half of 2021:

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X2 Automotive-Grade Positioning Unit

X2 optimally combines high-accuracy, low bandwidth GNSS measurements with high bandwidth IMU measurements with to provide high-accuracy, low latency position, velocity, and attitude measurements.
Developed and optimized mainly for in-vehicle applications scenarios in urban canyon, especially when in complex urban environment where the satellite signal is lost, X2 can still provide continuous and uninterrupted high-precision positioning services.

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Highly Integrated 3-Channel Multi-Mode Multi-Frequency GNSS RFIC

Track up to 320 channels simultaneously and support BDS-3 signals.

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Features

- Plug-and-play solution with easy integration: equipped with flexible interfaces to provide EVENT and 1PPS to synchronize external sensors such as Lidar, Camera, Odometer, as well as CAN interface and Automotive Ethernet to communicate with automotive platform.
- Modeled and optimized based on autonomous vehicle system, providing optimal positioning performance in dynamic condition and in urban environment
- Cost-effectiveness for mass production
- Support Precise Point Positioning (PPP), to serve users anywhere in the world

Advantages

- Deeply coupled GNSS+IMU navigation engine

- Built-in in-house developed high precision positioning and heading GNSS OEM board

- Built-in automotive-grade tactical IMU module

- Enhanced connection options including Automotive Ethernet

- Multi-vector RTK positioning engine

- All-constellation, multi-frequency RTK positioning solution, support BDS-3 and Galileo

- Support Precise Point Positioning (PPP)

- Support GNSS/IMU raw data output and post processing

- Low latency

Performance Performance during GNSS outages Mechanical Documentation IMU Datasheet

Performance

System Type	GNSS/INS Receiver
Satellite System	GPS GLONASS BDS BDS-3 QZSS Galileo NavIC(IRNSS)	L1 C/A, L2C, L2P, L5 G1, G2 B1I, B2I B1I ,B1C, B2a L1 C/A, L2C, L5* E1, E5b L5*
Horizontal accuracy	Single Point RTK	1.5m RMS 1cm + 1ppm RMS
Vertical accuracy	Single Point RTK	2.5m RMS 1.5cm + 1ppm RMS
Time to First Fix	Cold start Hot start	≤ 45s ≤ 30s
Maximum Data Rate	GNSS measurement RTK position INS position/attitude IMU raw data	5Hz 5Hz 100Hz 200Hz
Heading Accuracy	baseline = 2m baseline = 4m	0.08° 0.05°
Timing accuracy Velocity accuracy Velocity limit	20ns RMS 0.03m/s RMS 300m/s
Dimension	99mm * 88mm * 29mm
Weight	165g

Model	Outage Duration	Positioning Mode	POSITION ACCURACY (M) RMS		VELOCITY ACCURACY (M/S) RMS		ATTITUDE ACCURACY (DEGREES) RMS
			Horizontal	Vertical	Horizontal	Vertical	Roll	Pitch	Azimuth
X2-3	0秒	RTK	0.015	0.020	0.025	0.020	0.030	0.030	0.110
	0秒	PP	0.010	0.020	0.020	0.015	0.012	0.012	0.050
	10秒	RTK	0.300	0.200	0.075	0.035	0.060	0.060	0.170
	10秒	PP	0.020	0.020	0.025	0.020	0.016	0.016	0.070
X2-4	0秒	RTK	0.015	0.020	0.019	0.014	0.018	0.018	0.084
	0秒	PP	0.010	0.020	0.016	0.012	0.008	0.008	0.030
	10秒	RTK	0.235	0.140	0.058	0.024	0.035	0.035	0.110
	10秒	PP	0.015	0.020	0.020	0.017	0.010	0.010	0.034
X2-5	0秒	RTK	0.010	0.020	0.016	0.012	0.015	0.015	0.076
	0秒	PP	0.010	0.020	0.013	0.011	0.006	0.006	0.020
	10秒	RTK	0.180	0.125	0.047	0.023	0.028	0.028	0.095
	10秒	PP	0.010	0.020	0.016	0.015	0.007	0.007	0.022

Documentation

Product manual

Application Guide

Software Download

BY_Connect_Upper-computer_Software

2022.8.17

ZIP

38.21MB

Model		X2-3	X2-4	X2-5
Gyroscope	Range(dec/s)	±500°/s	±450°/s	±300°/s
	Support bit	32	32	16
	Rate Bias Repeatability(dec/s)	0.14°/s (XZ) 1.4°/s (Y)	0.3°/s	0.5°/s
	Rate Bias Stability(dec/h)	2.7°/h	2.1°/h (XY) 1°/h (Z)	1.8°/h (XY) 1.4°/h (Z)
	Angular Random Walk(dec*h-0.5)	0.15°/√h (XY) 0.2°/√h (Z)	0.15°/√h (XY) 0.08°/√h (Z)	0.09°/√h (XY) 0.10°/√h (Z)
Accelerometer	Range(g)	±14g	±8g	±6g
	Support bit	32	32	16
	Rate Bias Repeatability(mg)	6.0mg	5mg (XY) 7mg (Z)	20mg
	Rate Bias Stability(ug)	12.7μg (XY) 13.7μg (Z)	21μg	15μg
	Velocity Random Walk((m/s)*h-0.5)	0.039m/s/√h (XY) 0.033m/s/√h (Z)	0.02m/s/√h	0.035m/s/√h

Applications

X2 can provide reliable continuous centimeter-level real-time positioning services (including speed, attitude and other information), and can be used in autonomous driving, mapping and many other fields.

Driverless Application

Application Case
Mapping

Mapping
Unmanned Boat

Unmanned Boat
UAV

UAV
Automated Vehicle

Automated Vehicle

Excellent quality

Bynav was certified ISO9001 and IATF16949, and acquired Beidou navigation civil service qualification and other certifications, with RoHs, CE FCC international certificates and meet automotive-grade requirements.