Beitian BT-B201E GNSS+INS RTK Module for Robotics/Smart Driving/UAV, Multi-GNSS BDS GPS, IMU

Beitian

$239.66 USD

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Model BT-B201E with INS BT-B201

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Overview

The Beitian BT-B201E is a precision GNSS+INS integrated navigation module designed for centimeter-level positioning and high-reliability navigation output in demanding environments. It integrates a multi-GNSS receiver and an IMU, combining multi-band RTK and integrated navigation technology for applications such as ground robotics, smart driving, crowd-sourced maps, smart lawn mowers, precision agriculture, machine control, and unmanned vehicles (UAV).

Key Features

Multi-GNSS support: BDS, GPS, GALILEO, GLONASS, QZSS
RTK combination algorithm
RTK fast initialization, typically better than 5 s
Supports NTRIP RTCM3.x foundation enhancement data
Long-term baseline RTK solution technology (40 km+)
Small size, good I/O compatibility, low power consumption
54-pin LGA package; module size: 17 mm * 22 mm

Specifications

GNSS performance

Tracking frequency	GPS/QZSS: L1, L5; BEIDOU: B1I, B2a; GALILEO: E1, E5a; GLONASS: G1
Horizontal accuracy	≤ 8 mm + 1 ppm
Start time	Cold start ≤ 27 s; Hot start 2 s
Fixed solution convergence time	≤ 10 s
Path-to-path precision	Sub-level
Antenna	Single antenna
Baseline length	40 km fixed solution
Capture sensitivity	-148 dBm
Tracking sensitivity	-165 dBm
Carrier phase observation accuracy	< 0.01 cycle
Navigation output frequency	Up to 10 Hz

IMU performance

Gyro range	± 1000 deg/s
Gyro bias stability	± 4.5 deg/h
Gyro random walk of length	0.75 deg/√h
Accelerometer range	± 16 g
Accelerometer bias stability	± 0.25 mg
Accelerometer speed random walk	0.3 m/s/√h
Roll and pitch accuracy	≤ 0.02° (1σ)
Heading accuracy	≤ 0.2° (1σ)
Inertial estimation accuracy	≤ 1% * D (1σ, load)
Data sampling rate	50 Hz

Interfaces, protocol, and package

Hardware interface	2 UART; 1 PPS
Protocol	NMEA-0183; FMI; RTCM
Package	LGA
Pin count	54-pin
Module size	17 mm * 22 mm

Power supply and operating environment

Working voltage	3.3 v
Antenna voltage	3.3 v
PPS	1.8 V (rising edge)
Power consumption	0.5 W
Working environment	-40°C to 85°C
Storage temperature	-40°C to 90°C
Humidity	95% non-condensing