VectorNav VN-310 Dual Antenna GNSS/INS
The VN-310 is a Dual Antenna GNSS-Aided Inertial Navigation System (Dual GNSS/INS). Incorporating MEMS sensor and GNSS technology, the VN-310 combines 3-axis accelerometers, 3-axis gyros, 3-axis magnetometers and two 72 Channel GNSS receivers into a compact, ruggedized, IP-68 rated aluminum anodized enclosure to deliver a high-accuracy position, velocity and attitude solution under static and dynamic conditions.
0.3° GPS-Compass Heading
< 0.1° Dynamic Heading
< 0.03° Dynamic Pitch/Roll
< 1°/hr Gyroscope In-Run Bias
< 10 μg Accelerometer In-Run Bias
±15 g Accelerometer Range
±490/sec Gyroscope Range
800 Hz IMU Data, 400 Hz Navigation Data
Power: < 2.5 W
IP-68, DO-160G, MIL-STD-1275E
Made in the USA & ITAR-Free
The VN-310 features a precision milled, anodized aluminum enclosure designed to meet DO-160G standards. With dual I/O connectors the VN-310 offers maximum flexibility for interfacing with external GNSS receivers and IMUs. The VN-310 has an input voltage of 12 to 36 VDC power supply over a RS-422 interface.
Size: 56 x 56 x 31 mm
Power Consumption: < 2.5 watts
Weight: 200 g
Enclosed in a precision anodized aluminum enclosure, the VN-310 offers additional protection of the internal MEMs sensors and electronics. The use of precision CNC milled aluminum parts ensures that the axis alignment provided by the VectorNav factory calibration process is maintained during installation in its final configuration. Interfacing with the module is made through circular push-pull 10-pin connectors.
Dual GNSS-Compassing Algorithm
The VN-310 provides the ability to accurately estimate true heading (azimuth with respect to True North) in both static as well as dynamic conditions without any reliance on magnetic sensors. This is accomplished by utilizing GPS interferometry techniques, which measure the heading of the vehicle or platform without any assumptions regarding the vehicle dynamics (RTK moving baseline technique). This is a crucial feature for applications that require an accurate heading at startup, or in situations where insufficient motion is present to perform dynamic alignment.
Key Features of VectorNav’s GNSS-Compass Algorithms Include
- Magnetic independent
- Automatic transition between AHRS, INS and GNSS-Compass
- Adjustable GNSS antenna baseline lengths for shorter start-up times or increased heading accuracy
- Heading accuracy between 0.15° and 1.2° (RMS)
- Start-up in under 2 minutes
- Raw pseudorange, Doppler & carrier phase outputs