Single and Dual Antenna GPS-Aided Inertial Navigation Systems (INS)


INS-Application picture

The unveiling of the Inertial Navigation System (INS) began in 2001 when Inertial Labs began manufacturing it’s first MEMS based, IP-67 sealed (later releasing OEM versions), MIL-STD-810G qualified, multiple interfaces and COM ports Single and Dual Antenna GPS-Aided Inertial Navigation Systems (INS). Each INS contains an Inertial Labs developed Tactical or Industrial-grade Inertial Measurement Units (IMU) and reliable single or dual GNSS receiver from suppliers like Novatel, Hemisphere and Ublox.

The professional model of INS, the INS-P utilizes an embedded, high-precision, gyro-compensated magnetic compass, what allows the navigation system to measure and output high precision Heading without GNSS signal even in extreme environmental conditions (temperature, vibration, interference from external magnetic field).
magnetic field).

The Inertial Labs team of skilled engineers provides expertise to help users select and configure from the models available: INS-B, INS-P, INS-D and INS-DL. Our support team helps set up units for all application bases to satisfy both GNSS enabled, and GNSS-denied environments.



INS Models Available



Original Equipment Manufacturer (OEM) Models


 


Use Cases for the Inertial Navigation System


Using GNSS-aided INS for Remote Sensing with LiDAR

Remote Sensing with LiDAR

Sometimes called a 3D laser scanner, LiDAR isa surveying method that measures distance to a target by illuminating the target with pulsed laser light and measuring the reflected pulses with a sensor. It has terrestrial, airborne, and mobile applications. Some models of 3D LiDAR are able to generate up to 700,000 data points per second, There are plenty of exceptional producers on the market, for example Quanergy®(2) and Velodyne®.

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Using GNSS-aided INS for Scanning and Mapping

Scanning and Mapping

Perhaps area mapping is still the biggest domain for remote sensing. Making sense of the physical world by analyzing maps and 3D models allows businesses to make faster and more informed decisions that increase efficiency, profit and more importantly, improve safety. Few of the most often used bases it can be done on are a land vehicle or Unmanned Aerial Vehicles (UAV).

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Using GNSS-aided INS for Unmanned Aerial Vehicles (UAV)

Unmanned Aerial Vehicles (UAV)

Disaster response and mitigation is an increasingly successful market for autopilot suppliers. The Inertial Navigation System has been consistently used with Unmanned Aerial Vehicles in both GPS enabled or GPS-Denied environments. Whether they are putting out forest fires or identifying and responding to personnel in critical condition, the Veronte Autopilot (integrated Inertial Labs INS-P solution) can handle long mission profiles while carrying large payloads in GNSS-denied environments.

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Using GNSS-aided INS for Unmanned Underground Vehicles (UUV)

Navigation of Autonomous Vehicles

The Inertial Navigation System is the most robust navigation sensor on the market. Use the INS as an independent navigation sensor, or easily integrate with other sensors that the INS has been adapted for such as: LiDAR’s, Doppler Radar, Stereo Cameras, Echosounders, and many more. These useful integrations allow for a robust solution for even the most difficult-to-navigate urban environments.

Using GNSS-aided INS for GPS-Denied Navigation for Unmanned Ground Vehicles (UGV)

GPS-Denied Navigation for Unmanned Ground Vehicles (UGV)

Inertial Labs recently released an improved navigation algorithm that increases navigational accuracy for Ground Vehicles in GNSS-Denied environments. This “Tunnel Guide” feature has been proven through trials and testing to result in a position accuracy of 0.2% over Distance Travelled (DT) in GNSS-denied environments. Data also supports that with the injection of aiding information from other onboard sensors such as an odometer, air speed sensor or wind speed sensor, the Inertial Navigation System can produce position accuracy as low as 0.05% over DT.

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Using GNSS-aided INS for Autonomous Ground Vehicles (AGV))

Autonomous Ground Vehicles (AGV)

Precision Agriculture, an industry on the rise for Autonomous Ground Vehicles is one of the most used cases of autonomy in this century. Recent reports show that by the year 2025, Precision Agriculture is expected to grow to become a 43.4-billion-dollar industry worldwide. For an industry that didn’t begin gaining traction until the 1990’s, it’s quite an impressive market. The INS-DL and INS-D have been a popular solution for AGVs both in the industrial and military sector for their exceptional navigation performance.

Using GNSS-aided INS for Remotely Operated Vehicles (ROV)

Remotely Operated Vehicles (ROV)

ROV’s are an ideal platform for the INS. These platforms have taken advantage of the advanced MEMS-based navigation features of the Inertial Labs INS. Until recently, this market was only accessible for Fiber Optic Gyroscope-based (FOG) inertial sensors. However, with improved calibration procedures and methods for precision machining being utilized between MEMS-sensitive elements, the Inertial Labs INS now has the ability to compete with FOG units in both performance and reliability.


Supported Hardware Integrations


The Inertial Labs Inertial Navigation System has been designed to be compatible with a number of different solutions. Autopilot platforms such as Pixhawk or Veronte by Embention (distributed by Northwest UAV) give users precision accuracy at a fraction of the cost, plus the added functionality of each individual system.

Custom output formats support users the ability to communicate directly with the Cobham Aviator UAV 200. Additionally the INS can be used with LiDAR scanners, Sonars, and Optical Cameras.


Inertial Navigation Systems Supported Software



Performance Characteristics for the INS


GPS-Denied Navigation (Tunnel Guide) Performance

 

Read results of the GPS-Denied Navigation Performance Test in our Tunnel Guide White Paper.

Drift of INS-B with Tunnel Guide

Tactical IMU Gyroscope Bias Allan Variance Test

 

Gyro Allan Variance

Tactical IMU Accelerometer Bias Allan Variance Test

 

Accel Allan Variance

INS Heading, Pitch and Roll Accuracy (INS-B/P/D)


Roll Accuracy
Heading Accuracy
Pitch Accuracy

INS Development Kits


OEM Development Kit
IP 67 Development Kit

Unboxing the INS



Established in 2001, Inertial Labs is a leader in position and orientation technologies for commercial, industrial, aerospace and defense applications. Inertial Labs has a worldwide distributor and representative network covering 20+ countries across 6 continents delivering compact, high performance and affordable Miniature Orientation Sensors, Motion Reference Units (MRU), Attitude & Heading Reference Systems (AHRS) and GPS-Aided Inertial Navigation Systems (INS). With application breadth on Land, Air, and Sea; Inertial Labs covers the gambit of inertial technologies and solutions. Contact us to learn more.