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RTK GNSS-INS & LiDAR Mapping Sensors for UAVs and Autonomous Vehicles

Polynesian Exploration Inc Visit Website

Polynesian Exploration is a leading developer of inertial navigation solutions. Our innovative sensors are ideal for demanding unmanned systems applications such as UAVs (unmanned aerial vehicles) and UGVs (unmanned ground vehicles), as well as the next generation of high-performance autonomous driving systems.

GNSS-Aided Inertial Navigation Systems (INS)

PolyNav 2000H/P/E – dual frequency RTK GNSS-INS

PolyNav 2000PE RTK GNSS-INS for UAVThe PolyNav 2000H/P/E high-precision GNSS-aided Inertial Navigation System (INS) leverages the advantages of both GNSS and INS to provide centimeter-level position and velocity measurement accuracy for UAVs and other unmanned vehicles. The system offers dual frequency Real Time Kinematic (RTK) positioning and tightly-coupled GNSS and INS systems to provide superior performance even during GNSS signal outages.

The system continuously generates highly accurate attitude measurements whether the platform is moving or static, and is highly effective even in urban environments. Automotive Dead Reckoning (ADR) technology maintains position for up to 30 seconds during GNSS outages that may occur under bridges or inside tunnels, making the PolyNav 2000P/E ideal for autonomous driving applications.

The PolyNav 2000H/P/E offers a choice of three grades of inertial sensor performance:

  • Ultrahigh-performance “H” version
  • High-performance “P” version
  • Budgetary, high-performance “E” version.

The system is packaged in a ruggedized 145mm x 120 mm x 45mm enclosure, and features CAN, Ethernet and USB interfaces, 2 UARTs, and one PPS output.

Specifications:

PolyNav 2000HPolyNav 2000PPolyNav 2000E
Gyro Dynamic Range125 °/s125 °/s400 °/s
Accelerometer Dynamic Range8g8g8g
Gyro Bias Instability0.8°/h2°/h6°/h
Accelerometer Bias Instability3.2ug3.6ug20ug
Gyro Random Walk0.09°/√h0.15°/√h0.75°/√h
Accelerometer Random Walk0.08m/s/√h0.12m/s/√h0.05m/s/√h
Position Accuracy1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy1 cm/s
Roll/Pitch0.02°0.035°0.05°
Heading0.1°

PolyNav 2000F – FOG-based dual antenna GNSS-INS

Polynav 2000F high performance Navigation SystemThe PolyNav 2000F is a tactical-grade Fiber Optic Gyro (FOG)-based GNSS-aided Inertial Navigation System (INS) that provides extremely accurate attitude and heading data for unmanned vehicle applications. The sensor offers dual frequency Real Time Kinematic (RTK) positioning and tightly-coupled GNSS and INS systems to provide superior performance even during GNSS signal outages.

With high-accuracy attitude and heading outputs on both stable and moving platforms, the PolyNav 2000F is ideal for high-performance navigation for UAVs and self-driving systems. Communication capabilities include two serial ports, one Gigabit Ethernet port, one CAN bus and one USB port.

Specifications:

Gyro Dynamic Range490 °/s
Accelerometer Dynamic Range10g
Gyro Bias Instability0.05°/h
Accelerometer Bias Instability15ug
Gyro Random Walk0.015°/√h
Accelerometer Random Walk0.07m/s/√h
Position Accuracy1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy1 cm/s
Roll/Pitch0.01°
Heading0.01° (5m base)

PolyNav 2000B – Rugged GNSS Base Station

PolyNav 2000B - GNSS Base Station for Unmanned Vehicles

The PolyNav 2000B GNSS Base Station is a ruggedized dual-frequency multi-constellation GNSS reference station that broadcasts real-time RTCM corrections for any RTK-capable unmanned vehicles. The base station can be quickly and easily configured using an intuitive GUI via a local radio link or NTRIP caster/client (network RTK).

The PolyNav 2000B features a fast search engine to improve Time to First Fix (TTFF), with a configurable update rate of up to 50 Hz. It can be configured to record all tracked dual frequency multi-constellation measurements for post-processing.

Specifications:

GNSS SignalsGPS L1+L2, QZSS L1+L2, BeiDou B1+B2, GLONASS G1+G2 FDMA,GALILEO E1+E5b, SBAS L1
Position Accuracy (HRMS), SBAS0.50 m
Velocity Accuracy (HMRS)0.02 m/sec
RTK Positioning Accuracy (HRMS)8 mm + 1 ppm
Operating Range> 40 km

PolyNav 2000P OEM – High-Performance GNSS-INS

Polynav 2000P OEM GNSS-INSThe PolyNav 2000P OEM is a high-performance high-precision GNSS-INS, offering dual frequency RTK positioning for centimeter level accuracy. The tightly coupled GNSS and INS systems provide superior performance during GNSS signal outages, and the system is capable of continuously generating highly accurate attitude measurements whether the platform is moving or static.

The tactical grade IMU sensors offer 2°/h gyro bias instability.

Specifications:

GNSS SignalsGPS L1+L2, GLONASS, Beidou, Galileo, and SBAS
Position Accuracy1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy1 cm/s, 0.02 m/sec  (HMRS)
Roll/Pitch0.05°
Heading0.05°
Dimensions80 x 60 x 22 mm
Weight75g

LiDAR HD Aerial Scanner

PolyScanner – Integrated UAV Mapping Payload

High-performance, ultra-lightweight 3D HD aerial scanner

The PolyScanner integrates long-range LiDAR and an HD global shutter camera with state-of-the-art GNSS/INS technology to provide superior performance for UAV 3D mapping and surveying. Precision inertial sensing allows the system to accurately maintain position during GNSS outages.

The onboard computer, tightly coupled with the GNSS/INS system, fuses data from the LiDAR and camera to create a single time- and geo-tagged raw output file, which can be post-processed to provide highly accurate color point cloud data files.

The PolyScanner is also available as part of the complete PolyMapper solution, which integrates the system with a DJI Matrice 600 drone.

LiDAR Specifications

Model NameVelodyne VLP-16Velodyne VLP-32C
Channels1632
Measurement Range100m200m
Accuracy±3 cm±3 cm
Field of View (Vertical)+15° to -15°-25° to +15°
Angular Resolution (Vertical)Minimum 0.33° (non-linear distribution)
Field of View (Azimuth)360°360°
Angular Resolution (Azimuth)0.1° – 0.4°0.1° – 0.4°
Rotation Rate5 – 20 Hz5 – 20 Hz
Return ModesSingle/DualSingle/Dual
Points/Second~0.3/0.6 million~0.6/1.2 million

Camera Specifications

Sensor TypeCMOS
Readout MethodGlobal Shutter
Sensor Format1”
Pixel Resolution12.94mm @ 60m
Pixel Size3.45μm
Resolution4096 × 2160

Hardware Specifications

Recording timeup to 2 hours
Weight2.3 kg
Dimensions260 mm x 150 mm x 145 mm
OutputEthernet

GNSS Characteristics

ConstellationsGPS/GLONASS/Beidou/Galileo
Satellite signalsL1 & L2
Position accuracy1.6 m CEP SPS, 0.02 m RTK
Velocity (RTK) accuracy1 cm/s
Roll/Pitch (RTK)0.01°
Heading0.1° (1 m base),
Measurement rate100 Hz
Sensitivity-160 dBm
Number of antennas2

Inertial Sensing Applications

Autonomous Driving

GNSS-INS for Autonomous Cars

Autonomous automotive systems such as self-driving cars require accurate and reliable navigation solutions that are also suitable for mass production. Our inertial navigation sensors are based on high-volume production devices and are ideal for GNSS-denied environments and other challenges faced by autonomous vehicles.

Unmanned Aerial Vehicles/Drones

GNSS-INS for UAVs and DronesSafe drone operation and navigation relies on accurate position, velocity, and attitude information. Precise pitch, roll, and yaw measurement enables stable flight dynamics, and accurate position estimation is critical for motion and path planning in autonomous flight. Polynesian Exploration’s high-performance solutions are designed to provide smarter, safer navigation for UAVs.

Mapping

GNSS-INS for Aerial Mapping ApplicationsGNSS-integrated inertial navigation systems reduce the need for ground control points (GCPs) in aerial mapping performed by manned or unmanned aircraft. 3D maps with centimeter-level accuracy are essential for autonomous driving environments, requiring multiple sensors working together. Polynesian Exploration’s inertial sensors are ideal for facilitating a wide range of mapping applications.

RTK GNSS-INS & LiDAR Mapping Sensors for UAVs and Autonomous Vehicles
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