3DM-GQ7

Tactical Grade, Dual Antenna, Multi-band, RTK, Industrial Package

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Microstrain’s newly released 3DMGQ7 GNSS/INS navigation sensor with native RTK capability provides excellent and accurate performance. The multiband RTK combined with SensorCloud RTK network and cellular enabled 3DMRTK Modem makes this a complete out-of-the-box advanced navigation sensor for simultaneous localization and mapping (SLAM), drones, wheeled and legged robots and unmanned / autonomous vehicle applications.
Low-noise, linear, and stable MEMS gyros and accelerometers enable superior heading accuracy during turns & bumps.
Auto-adaptive Kalman Filter algorithms provide exceptional dynamic performance.
Auto self-calibration and automatic anomaly rejection make units with magnetometer a reliable and accurate heading reference.
Fully calibrated and temperature compensated IMUs provide stable performance in demanding environments.

Comparison 3DMGQ7 vs 3DMGX5: published at Robotics Tomorrow.

Accepts standard RTCM real-time kinematic (RTK) corrections
Adjustable sampling rates up to 1KHz
34 state auto-adaptive EKF
Supports GNSS heading (dual antenna), magnetometers, internal pressure altimeter and wheel odometer for improved performance even during GNSS outage scenarios
Independently configurable IMU, GNSS, EKF outputs
Forward compatible MIP Protocol optimizes bandwidth
SensorConnect software for configuration, control, display, and logging
MSCL open source API for easy integration
Check out the online user manual here.

ROS™

Robot Operating System (ROS) is an open-source, meta-operating system for your robot. It provides the services you would expect from an operating system, including hardware abstraction, low-level device control, implementation of commonly-used functionality, message-passing between processes, and package management. ROS can be used in building and simulating robotics applications, as well as unmanned ground vehicles and simultaneous localization and mapping (SLAM). To facilitate better integration within the ROS ecosystem Microstrain has develop an open source License free (MIT License) series of drivers specifically designed and tested for ROS.

Download MicroStrain driver on GitHub

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3DM-GQ7

Tactical Grade Dual Antenna, Multi-band, RTK, Industrial Package

Up to 1 cm + 1 ppm positional accuracy with RTK
Multi-frequency GNSS receivers provide 1.2m single point L1/L2 position accuracy
Multi-constellation receivers with 184 tracking channels each allow for rapid signal acquisition and robust signal tracking in challenging GNSS environments
Dual GNSS antenna heading with 0.2° heading accuracy that is immune to magnetic disturbances
Tactical grade IMU with <2°/hr bias instability provides exceptional position accuracy during GNSS outages
0.1° pitch/roll accuracy
USB and RS-232 interfaces
-40 to +85°C operating temperature range
Highly compact, low profile and light wheight: 76 x 68.6 x 13.3 mm, 78 grams

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3DM-RTK Modem

Network Interface Modem, Industrial Package

The 3DMRTK network interface modem consists of a cellular modem sim card and processing unit in a rugged enclosure. It contains all the of software necessary to seamlessly interface with our SensorCloudRTK corrections service out of the box – creating the easiest RTK correction solution on the market today. It can be paired with an existing GNSS/INS or combined with our 3DMGQ7 tactical-grade GNSS/INS for a powerful, single-vendor system with centimeter-level positional accuracy. The system delivers accurate positioning, velocity and attitude estimates at 1 kHz. This accuracy incorporates up to 2 cm position accuracy, 0.05 m/s velocity accuracy, 0.1 degree roll/pitch accuracy and 0.25 degree heading accuracy with dual-antenna GNSS.

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