Tag - VectorNav

VectorNav’s VN-200 Integrated into Precision Imaging Payload

VectorNav announced that its VN-200 GPS-aided inertial navigation system (INS) was selected for integration into Overwatch Imaging‘s TK-series precision imaging payload. The payload is for aerial smart mapping and automatic detection applications for UAVs (unmanned aerial vehicles) and manned aircraft.  

Soda straw effect

Traditional tactical imagery payloads, such as stabilized turret systems, feature electro-optical cameras with small field-of-view angles and high zoom capabilities. Such systems are ideal for tracking target objects from high altitudes; however, they suffer from the “soda straw effect”. When this system is zoomed in to see small targets, only a small area of ground is viewable. When the system is zoomed out to view large areas, smaller details are not visible to the user. As such, stabilized “soda straw” video systems struggle when the application calls for finding small objects in very large areas. They are not an ideal match for industrial inspections or wide-area land management surveys. Overwatch developed an imaging system with  greater image resolution and area coverage for low-altitude manned and unmanned aircraft. In addition, to deal with all the data, Overwatch developed automated image processing software to turn imagery into geospatial intelligence.  

TK-series camera systems

Overwatch Imaging’s TK-series camera systems are designed around a unique, nadir-pointing pitch, roll and yaw stabilized mount. The system features an imaging module that holds application specific sensors and optics. There's also an on-board mini-supercomputer and on-board storage for custom image processing algorithms. To cover large areas with high resolution, engineers developed a step-stare scanning camera motion feature. Compared to traditional mapping systems, this feature increased the per-pass data by 4x. Users can map 4x the amount of ground per pass, increase the resolution by 4x or a combination of both. To implement this advanced imaging technique Overwatch required an INS which could mount to the optical bench.  

INS integration

Mounting the INS directly to the optical bench provided a few advantages. The team no longer needed to rely on aircraft INS for data, it removed the requirement for encoders on the individual axes, and reduced the control system and electronics complexity. Additionally, it provided a smaller overall form factor (critical to small and medium-sized UAS). It was also critical that the INS provide low latency attitude data within 0.1° accuracy for pitch and roll in dynamic conditions. This created a faster workflow, lessened the load on the onboard processor for real-time image stitching and allowed for operation at larger standoff ranges. The engineers at Overwatch surveyed the market and down-selected several inertial products from a variety of suppliers. The focus was to identify a solution with the highest accuracy in the smallest form factor, for the best price. The VectorNav VN-200 Rugged GPS-aided INS out competed all competitive products in each of these categories.  

VN-200

The VN-200’s ability to output accurate position and attitude data at up to 400 Hz and high gyroscope angular rate range (±2000 °/s) allowed the TK-series to maintain accurate attitude estimates while performing the step-stare scanning motions. “VectorNav has an excellent reputation in the marketplace,” said Greg Davis, Founder of Overwatch Imaging. “When a review showed that the VN-200 surpassed other INS solutions in size, cost and performance our choice was clear.” The VN-200 plays a vital role in the TK-series payloads. It provides valuable data for platform stabilization, roll sweeping, step-stare functionality and accurate geolocation of target objects, setting the TK-series apart from its competition. In October 2016 Textron Systems announced the integration of Overwatch Imaging’s TK-7 Firewatch featuring the VN-200 into the Aerosonde Small UAS. The TK-7 Firewatch features multi-megapixel color focal plane array and co-boresighted infrared sensors that enable the system to automatically detect anomalies, such as hot-spots for wildfire mapping. This enables wildland fire crews and forest health managers to more effectively monitor large areas, providing critical analysis, reporting and rapid response capability. Overwatch Imaging’s TK-series is in use in a multitude of new applications -- from vegetation management and infrastructure inspection to target auto-detection and geolocation.  

Shop VectorNav's VN-200 and other sensors at Unmanned Systems Source.

VectorNav INS Selected for UAV LiDAR Mapping System

LiDAR USA announced the integration of  VectorNav's VN-300 Dual-Antenna Inertial Navigation System f0r its ScanLook Revolution UAV-based  mapping-system. The combined system provides LiDAR mapping capabilities targeted at applications that require a fast, efficient and easy-to-use solution.  

UAV-based LiDAR

Historically, the size, weight and power requirements of legacy LiDAR mapping systems primarily limited their use to manned aircraft. Plus, to keep costs feasible only large areas were best for mapping. Thanks to advances in both LiDAR and INS technology, a new generation of mapping systems are emerging. Today, LiDAR units weigh just a few hundred grams and can fit in the palm of the hand. They are also affordable enough for small businesses to develop services with a meaningful return on investment.  

How it works

Mobile LiDAR mapping requires several components to work synergistically in order to provide a suitable output. Components include: a LiDAR scanner, attitude/orientation sensor, positioning system, timing reference system and a vehicle or mobile platform. Traditionally, users had to either piece all the components together. Or users had to buy expensive systems designed for survey applications which incorporated L1/L2 GPS receivers with RTK positioning techniques. These types of systems also required the added expense of communicating with a reference base station or reference network system in order to maintain such accuracy. Clearly, there was a growing need for a low-cost, easy-to-use mapping system available to a wide-range of users. A system that required no advanced training, or complex setup and expensive post-processing. Enter LiDAR USA. Leveraging 18 years of experience, LiDAR USA developed the ScanLook Revolution system.  

Why VN-300?

LiDAR USA selected the VN-300 Dual-Antenna INS to keep the Revolution small, accurate and fully featured. “The VN-300 stood out among the rest for it’s exceptional performance in a wide range of operating conditions and especially for its small size and low weight. The VN-300 is a powerful sensor,” said Jeff Fagerman, CEO of LiDAR USA. “It’s tiny, only weighs 30 g and has performance comparable to much higher-priced systems,” In part, LiDAR USA selected the VN-300 because it does not rely on magnetometers for heading estimation. “Relying on magnetometers for accurate heading estimation is typically highly problematic,” according to Jakub Maslikowski, Director of Sales and Marketing at VectorNav. The VN-300 uses two GNSS receivers and a technique known as Carrier Phase Interferometry. This technique enables the VN-300 to estimate the heading solely from GPS signal measurements when the vehicle is stationary. Development of the Revolution was a challenging endeavor and required a lot of experimentation and fine tuning. “Working with the VN-300 and the team from VectorNav has been excellent. They’re responsive, extremely knowledgeable and a great team to work with,” said Fagerman.  

Shop VectorNav's entire line of solutions at Unmanned Systems Source.

Red Bull Air Race Selects the VectorNav VN-300 for Onboard Telemetry

The VN-300 is now the primary source for telemetry data for Master Class race planes participating in Red Bull's Air Race World Championship. The 2018 inaugural season event, in Abu Dhabi, marked the first time all 14 aircraft used the VN-300. The VN-300 provides real-time telemetry data which teams use for a variety of functions.  

About the Red Bull Air Race

Created in 2003, the Red Bull Air Race World Championship features the world's best race pilots. It is a pure motorsport competition combining speed, precision and skill. Using the fastest, most agile, lightweight racing planes, pilots hit speeds of 370 km/h. Pilots endure forces up to 10 G as they navigate a low-level slalom track marked by 25-meter-high, air-filled pylons. Pilots receive time penalties for various infractions. Such penalties include: hitting pylons, incorrectly passing through the Air Gate, as well as others. Spectators need a reference to see the difference between the pilots’ lines and speed through the racetrack. As such, Red Bull Air Race Live TV utilizes an augmented reality (AR) solution known as the Ghost Plane. The AR displays the trajectory of the pilots’ runs and provides real-time comparison in the head-to-head rounds and finals. The Ghost Plane is driven by the position, velocity and attitude data gathered during flight from the on-board INS. Critical to the success of the Ghost Plane is the accuracy of the telemetry data. And, given the high dynamics experienced during flight, is difficult to obtain.  

Importance of accurate telemetry data

For example, when a plane races through a chicane and into a vertical turn maneuver, it loses GPS signals. As such, until GPS is reacquired, the INS relies solely on the inertial sensors to provide position and velocity. “We evaluated several different inertial navigation systems. We struggled to find one that performed in our dynamics. VectorNav’s VN-300 was the only product able to deliver the attitude, position and velocity data accuracy we require. And, it did this out of the box, no customization required. The sensor is really amazing,” said Alvaro Navas, Sport Technical Manager for the Red Bull Air Race.  

VN-300

Weighing less than 30 grams, the VectorNav VN-300 is the world’s smallest dual antenna GNSS-aided INS. It is used in many applications: from autonomous vehicles to antenna pointing for satellite communication and aerial surveillance. “We are really excited to work with Red Bull Air Race,” said Gordon Hain, VectorNav Product Manager. “We provide accurate data for the race judges and spectators and we provide valuable information to pilots and tacticians. With the VectorNav data in hand they can compare actual flight trajectories with their simulations to find areas for improvement. We look forward to working with Red Bull Air Race in the 2018 season and beyond.”  

Shop VectorNav Technologies' line of sensors at Unmanned Systems Source.

 

About VectorNav Technologies

VectorNav Technologies is the leading innovator and manufacturer of embedded navigation solutions using the latest in MEMS inertial sensor and GPS/GNSS technology. Since its founding in 2008, VectorNav has provided systems integrators in the military, aerospace, marine, and robotics industries around the world with SWaP-C optimized, high-performance navigation systems. Furthermore, VectorNav has unique expertise in applying the digital filtering and sensor calibration techniques that have multiple decades of heritage in aerospace applications to the state of-the-art in MEMS inertial and GPS/GNSS technology.  

About Red Bull Air Race

Created in 2003, the Red Bull Air Race World Championship has held more than 80 races around the globe. The Red Bull Air Race World Championship features the world’s best race pilots in a pure motorsport competition that combines speed, precision and skill. In 2014, the Challenger Cup began to help the next generation of pilots develop the skills needed for potential advancement to the Master Class that vies for the World Championship.

VectorNav Earns AS9100 Designation for Dallas Facility

VectorNav Technologies announced it received accreditation for the AS9100 Rev. D international aerospace standard for its Dallas, Texas headquarters. AS9100 is a set of quality requirements established by the aerospace industry to satisfy DOD, NASA and FAA quality requirements. These quality requirements are based on ISO 9001 standards. “Earning the AS9100 designation for our Dallas facility demonstrates we are a highly capable supplier to the aerospace industry. Operating to the highest standards of quality is a core principle for us," said Scott MacDonald, Process and Quality Engineer at VectorNav. "This certification reflects our continued commitment to ensure our processes and systems deliver products and services that exceed our customers’ quality, cost, and speed expectations.”  

About VectorNav

Founded in 2008, VectorNav is a market innovator of miniature, high-performance MEMS- and GPS/GNSS-based inertial navigation systems. The releases of VectorNav’s surface mount VN-100 IMU/AHRS, VN-200 GPS/INS and VN-300 dual antenna GNSS/INS were each market firsts. Recently, the company released a line of tactical-grade inertial navigation systems that delivers an excellent price/performance ratio. The AS9100 accreditation marks VectorNav’s achievement in demonstrating the highest level of manufacturing, quality and customer service standards. The certification represents VectorNav’s ability and commitment to deliver the highest quality miniature inertial navigation systems -- from rapid procurement during testing and development to high-volume capacity for integration and production.   Shop VectorNav's entire line of sensors, industrial and tactical, at Unmanned Systems Source.

VectorNav’s VN-200 aids in precision geo-pointing for miniature Epsilon series of gyro-stabilized gimbals

Octopus ISR Systems, a division of UAV Factory Ltd., announced the release of a new feature, "Precision Geo-Lock", for its miniature Epsilon series of gyro-stabilized gimbals. Precision Geo-Lock combines a state-of-the-art GPS-aided inertial navigation system (GPS/INS) with dedicated software algorithms and payload operator software. It provides the user with highly accurate target geo-location, range-to-target, as well as Geo-Lock functionality and moving map user interface.

Precision geo-location challenges

Equipping a miniature airborne gimbal with precision geo-location presents a multitude of challenges. First, the gimbal operates in a high vibration environment, high accelerations and extreme ranges in temperature. Also, unmanned aircraft often use miniature gyro-stabilized gimbals. Thus, small size and low power consumption are significant factors. “Traditionally, small gyro-stabilized gimbals use an external heading source to estimate the geo-location of the target,” stated UAV Factory CEO Konstantins Popiks. “Onboard the unmanned aircraft, the attitude data is usually supplied by an autopilot. The estimate accuracy is imprecise due to the nature of low-cost sensors used in miniature autopilots. Miniature autopilots simply do not need the precise heading data required by the gimbal. As a result, the heading error generates large geo-location errors and provides little to no use for the unmanned aircraft operator. Additional errors occur due to misalignment of the gimbal and autopilot; these are separate subsystems mounted in different locations on individual soft vibration mounts.” For the Geo-Lock feature to work, a highly accurate external GPS/INS  needed to be integrated into the system. “Today the state-of-the-art miniature gyro-stabilized gimbals have a narrow field of view of less than 1.3 degrees," said Popiks. "Therefore, pointing accuracy should be significantly better than 1.3° to prevent the target pointing location from going out of frame.”  

VectorNav VN-200

In order to guarantee the successful implementation of the Precision Geo-Lock feature, UAV Factory partnered with VectorNav Technologies. VectorNav develops and manufactures high performance inertial navigation systems using the latest in MEMS sensor and GPS/GNSS technology. “VectorNav’s VN-200 was the only product on the market that offered a high-level of performance but small enough form factor for direct integration into the optical bench of the gimbal” said Popiks. “When the product delivered that level of accuracy despite the high vibrations, accelerations and temperature fluctuations of our application the choice was obvious.” UAV Factory’s Precision Geo-Lock provides better than 0.3 degree accuracy and is ‘Plug-and-Play’. This allows the customer to install the Epsilon gimbal and get accurate results on any platform and in a high-vibration environment. Epsilon gyro-stabilized turrets will be available with VN-200 single GPS-based INS solution, as well as the VN-300 dual GPS-based INS. A single GPS/INS solution is suitable for dynamic platforms such as manned and unmanned aircraft. Dual GPS/INS is a necessity for platforms with low dynamics, such as aerostats, ships and helicopters. You can shop VectorNav's entire line of sensors at Unmanned Systems Source.