Cepton Inc. is working with LidarSwiss Solutions GmbH to deploy its lidar technology in a drone-based mapping and analytics solution for infrastructure management and engineering design applications.
Cepton is a Silicon Valley innovator of high-performance lidar solutions. LidarSwiss is a Switzerland-based provider of high-performance unmanned aerial vehicle (UAV) lidar solutions.
Utilizing Cepton’s Sora lidar sensor, the LidarSwiss Nano P60 system provides high-fidelity mapping and real-time processing on the fly to serve engineers, forestry managers and urban planners across the globe. To date, Nano P60 has been used to map and analyze powerlines, areas for site development, flood plains and highways in more than 20 cities in Asia, Europe and Australia.
Nano P60 packages Cepton’s Sora lidar, a 42-mp camera, an Applanix IMU/GNSS and a LidarSwiss controller. (Photo: LidarSwiss)
Nano P60 integrates Cepton’s Sora sensor with a high-precision IMU/GNSS unit from Applanix and high-resolution camera system. Its intelligent controller with LidarSwiss proprietary software automatically combines all raw data to generate high-density, high-precision RGB attributed 3D laser point clouds during flight.
With a total weight of 2.1 kg, this compact system can be mounted on small UAVs to produce mapping products such as digital orthophotos, digital elevation models and 3D models, or to interface with a third-party software to enable easy, seamless solutions for all kinds of industry applications, such as digital twins, smart cities and building information modeling (BIM).
“The prominent features of the Nano P60 are its high stability, point density and intelligence,” said Robert Kletzli, LidarSwiss founder and CTO. “This lidar-enabled system addresses the critical gap of 3D accuracy with traditional camera and stereo imaging technologies. Now, instead of needing two images to see a single point and detect its elevation, Nano P60 utilizes lidar’s intrinsic 3D imaging capabilities to achieve maximized efficiency, making real-time processing and analytics possible. Cepton’s Sora lidar is among the most compact, lightweight lidar sensors that we have tested and offers an unparalleled combination of high resolution, longer range in the same category and cost efficiency. Its unique lidar architecture allows seamless integration, making Nano P60 a true plug-and-play system with solid-state reliability.”
Nano P60 combines lidar point clouds with RGB imagery to generate high-density, high-precision 3D imaging with color by elevation features. (Image: LidarSwiss)
“We are proud to be supporting LidarSwiss and its customers with our lidar technology to unlock applications such as 3D modeling for BIM, historical site mapping, terrain modeling for heavy vegetation areas, volumetric calculations for mining, power line inspection and forestry mapping,” said Klaus Wagner, director of Product Management and Marketing at Cepton. “Our Sora lidar is a one-of-a-kind line scanner that combines high frame rate and long range. Powered by Cepton’s proprietary lidar technologies, it is compact, lightweight and rotation-free, making it ideal for small UAV applications.”
YellowScan has released a new long-range lidar scanner. Voyager is a powerful solution for both manned and unmanned aircraft.
With Voyager’s wide field of view, all of the points collected are oriented toward the ground, meaning there is no loss of points. This also means 1.5 million points per second will be usable, which would not be the case with a 360° scanner.
Voyager combines a Riegl VUX-120 laser scanner with a Trimble Applanix AP+ 50 AIR or Applanix AP+ 30 AIR GNSS-inertial board, providing precision of 0.5 cm and accuracy of 1 cm.
Voyager’s detection and processing of up to 15 target echoes per laser pulse allows for excellent vegetation penetration. Its has an extremely fast data-acquisition rate of up to 1800 kHz, suitable for projects requiring the highest point density.
The laser scanner’s specifications can be customized to fit the needs of various projects and platforms, and can be combined with YellowScan’s full suite of software solutions to easily extract, process, merge and colorize point-cloud data.
High-resolution imagery geolocated by the sixth-generation Digital Sensor System (DSS) after Hurricane Ida. (Photo: NOAA)
Applanix, a division of Trimble, has been working with the National Oceanographic and Atmospheric Administration (NOAA) since the early 2000s to develop their response for emergency and coastal mapping activities. We discussed this collaboration with Joe Hutton, the company’s director of inertial technology, land and airborne products.
How has Applanix collaborated with NOAA regarding emergency response and coastal mapping?
Early on, we worked with them to develop a solution that allowed them to get out in the field and produce high accuracy map products with minimal touching of the data. In mid-2021, we delivered the next generation of this solution, or the DSS version six, which represents the culmination of everything learned over the years about how to produce imagery for emergency response, in terms of the types of collection, the types of imagery, and how to get it into first responders’ hands as quickly as possible.
At the heart of the system is our direct georeferencing technology. It’s a solution that allows us to assign the geographic location of every pixel of the digital imagery collected in the air. As soon as you land, you have the coordinates of every pixel, which means that you have a map that NOAA then pushes to the cloud for first responders to use in their emergency response efforts.
The collaboration consisted of Applanix working with Lead’Air to manufacture the next generation system that meets NOAA’s latest requirements. That’s what we delivered in 2021. Weeks after delivery, NOAA was called to respond to the hurricanes. They flew the new system with great success and were able to use it for their response.
What is your perspective on ground control points (GCPs) vs. direct georeferencing?
It is impossible to place GCPs in an emergency response when you cannot get on the ground. People who say they need GCPs do not really understand direct georeferencing. We’re having this debate even after 20 years of proving this technology. The NOAA system does not use GCPs and the map products are at centimeter level accuracy.
We use Trimble’s RTX technology, which enables centimeter-level GNSS positioning without base stations, which is important when the CORS or local RTN is unreliable due to a disaster. We have high accuracy inertial systems that get us the high accuracy orientation, so that we can go directly to ortho photos and ortho mosaics without running any triangulation or using GCPs in that process. That is a standard process these days. GCPs are only there for quality control if you want to deliver a final map product.
Did NOAA fly the mission with its own aircraft?
Yes, these are NOAA’s King Air or Twin Otter aircraft. The King Air aircraft is specifically outfitted for these types of emergency response and coastal mapping activities. The DSS system gets installed into the airplane and gets calibrated in terms of checking the system out for accuracy. Then it’s ready to fly the response. In the air, they collect the imagery over a flight path of interest to them. Then, it’s developed from raw imagery into JPEGs in the aircraft, and all the georeferencing data is logged with that imagery so that as soon as they land they can push a button and start to reference the JPEG imagery and push it to the cloud.
What are the components of your system?
What makes this system so unique is that it encompasses all the lessons learned over the years in terms of what NOAA needs to optimize for both their coastal mapping and their emergency response. It incorporates two pairs of color and near-infrared Phase One cameras that are configured in an oblique format with some overlap, forming a bowtie footprint on the ground.
You have 100% overlap of the color with the near-infrared and it’s on a high-performance stabilized mount that keeps everything perfectly level. The mount also has a special feature that enables the operators to rotate the cameras to go into nadir mode, mostly for traditional coastal mapping that requires stereo imagery. We were able to incorporate into a single system the requirements for both emergency response—where you want large coverage and obliqueness to look for damage—and nadir for coastal mapping.
Lead’Air built the sensor for you, on your specs, correct?
Yes, that’s correct. We’ve worked with Lead’Air for probably 20 years on flight management system (FMS) technology. They also have an amazing capability to build stabilized mounts and hardware systems. So, we decided to work together. We contracted them to implement some of their innovative hardware in this new design for us to deliver to NOAA. We contracted them to do all the manufacturing of the design and delivery to NOAA.
One of the quite innovative things that they did was to develop a new flight management capability that allows NOAA to fly ad hoc along highways or rivers, looking for damage. Traditionally, for aerial imagery you have to pre-flight plan trajectories. They designed an FMS that enables a pilot to fly a road or a river looking for damage without worrying about traditional block collections as with a more traditional FMS. So that feature further increases productivity. If you look at the most recent imagery at www.storms.ngs.noaa.gov you will see that it looks like spaghetti, not like blocks. That’s because they are following the roads and the rivers looking for specific damage.
Does the post-processing use your software?
Yes, it uses the POSPac MMS post processing software with POSPac Trimble Post-processed CenterPoint RTX correction service, allowing us to get that centimeter-level position accuracy, anywhere in the world with just an internet connection. You don’t have to worry about having a local base station—which, of course, if you’re in an emergency response situation, might not be there anyway. So, this is a very powerful way of getting global centimeter-level accuracy in real time, without having to worry about the ground-based GNSS infrastructure, that is, the local real-time network, that’s on the ground.
If you don’t have internet access, you can ship that data to the nearest place that does, right?
You could, however NOAA simply flies to wherever there is access. What takes the longest is to develop the imagery from the raw format to the JPEG format, because these are such large images. Doing that in the air saves an enormous amount of time. You have these JPEG-ready images that are compressed and can go right into the georeferencing process and make it really, really fast.
That’s a matter of computing power and smart software. What else did Lead’Air contribute?
This very efficient, fast image development process in the aircraft.
It sounds like it was a very integrated process between Applanix and Lead’Air. So, NOAA had the instrument mounted on their aircraft, their pilots did the flying, and then you processed the data?
No, NOAA’s team processes all the data. We just deliver the hardware and the software. They created the workflow software to push the data to their cloud environment.
NOAA uses this data to produce maps of the damage and highlight different situations and hazards?
Yeah. When these hurricanes go through, the first questions people have are “Where’s the damage? Are these roads passable? Did my house survive?” If you are doing response, you need to get teams in there. First, however, you need to know whether the roads are passable, so that you will not waste time going down a road that is not. So, the first thing they do is go up in the air and survey the main roads to push the imagery back, so that people can assess whether the roads are passable. Then they start to look for specific areas of damaged infrastructure, to triage where to put their resources. Then they ask “How do we manage disaster recovery?”
What lessons did you learn?
We are still learning about the power of the system, because these are Phase One 150 megapixel color cameras. It is such a powerful combination of sensors that they’re starting to look at different information they can get out of these things. They’re still learning new lessons in terms of what information can be useful for both the emergency response and the coastal mapping.
Ultimately, we’ll go to full ortho maps in the aircraft. That’s just going to be a matter of computational power. The holy grail would be to produce an orthophoto in the aircraft and radio it down to the ground in real time. Nothing prevents you from doing that now other than computational power and bandwidth. It’s not practical yet, but it will probably get there.
Do you have collaborations like the one with NOAA with any other major U.S. agencies?
We’ve worked extensively with NASA over the years. For example, we have worked with them on the ice bridge project. That is where they survey ice at both poles to measure its thickness and how global warming is affecting it. They use our system on that to do the georeferencing. We also work extensively with other branches of NOAA for their shoreline mapping from their ships. We have worked with them over the years to provide the georeferencing solution for the multibeam echo sounders to produce their nautical charts.
GeoCue, a U.S. LiDAR data technology company, has announced its latest True View 3D Imaging Systems (3DIS) product, the True View 645/650. Combined with GeoCue’s integrated data processing software suite, True View EVO, all GeoCue 3DIS products include the full post-processing software workflow, including direct integration with Applanix POSPac.
The survey-grade True View EVO supports the direct creation of many standard project deliverables including ground classified point clouds, surface models, contours, Digital Elevation Models (DEMs), volumetric analysis, wire extraction and similar products without the need for additional third-party software.
According to GeoCue CEO Frank Darmayan, the newest True View 645/650 includes a Riegl mini VUX3-UAV laser scanner and dual mapping cameras. This system delivers colorized LIDAR deliverables with accuracy better than 3cm RMSE for the True View 645, and better than 2cm for the True View 650.
The mini VUX-3UAV, a 360° rotating mirror scanner, increases the scanner frequency to 300 kHz and offers a unique mode where the 200,000 pulse per second scan rate is focused in a 120° cross-track field of view, providing significantly increased point densities in aerial mapping applications.
Registration has now opened for the Applanix User Group Meeting and Conference, focused on Air and Land solutions, taking place in Fremont, California, Sept. 20-22. Discounted early bird prices will be available until May 22. The conference is also currently accepting speaker proposals.
This meeting will give you the opportunity to hear the latest news from Applanix, take in-depth product training, meet with product and customer support experts, and network with other industry leaders from around the world.
The conference will take place over three days and will have four main goals:
• Deliver an information-filled training experience on all of our software, as well as the APX series of boards, POS products, and the latest developments in the Autonomy field
• Present the new Land Mobile Mapping line of OEM and plug-and-play products
• Give customers and partners an opportunity to share their most recent projects and experiences
• Provide networking opportunities
To register and purchase tickets for the conference or to submit a proposal, visit Applanix’s website.
New hardware and software platform provides accuracy, position for land-vehicle system integrators
Photo: Applanix
Applanix, a Trimble Company, has announced the Trimble AP+ Land GNSS-inertial OEM platform for accurate and robust position and orientation for georeferencing sensors and positioning vehicles in land mobile-mapping applications.
The platform enables users to accurately and efficiently track and monitor fleets and produce high-definition (HD) maps and 3D models. It can also serve as a reference solution for advanced driver-assistance systems (ADAS) testing, even in challenging GNSS environments.
The comprehensive Trimble AP+ Land is small enough to integrate into compact mobile-mapping systems. It is compatible with virtually any type of mapping sensor, including single- or multi-lidar systems, video cameras, photogrammetric and panoramic cameras, and similar sensors.
Configurable to meet the mapping, positioning and direct georeferencing (DG) accuracy demands of mapping and positioning applications in challenging GNSS signal environments, the Trimble AP+ Land solution features:
Dual embedded survey-grade GNSS chipsets that can receive multi-frequency and multi-constellation signals
Dual custom-designed inertial measurement units (IMU)
Distance measurement indicator (DMI)
Compact size
Low power consumption
Optional RTK and Trimble CenterPoint RTX real-time correction service support
Full integration and post sales support through the Applanix Global support network
“We have taken the most advanced features of Applanix inertial and Trimble GNSS technology, and packaged them into a powerful compact and versatile solution optimized for mobile mapping and positioning applications,” said Joe Hutton, Applanix’s director of inertial technology, air and land products. “We remain committed to our customers’ success by developing flexible and scalable positioning solutions such as the AP+ Land and more.”
The Trimble AP+ Land OEM solution is supported by the Applanix POSPac MMS post-processing software, which features Trimble CenterPoint RTX post-processing for centimeter-level positioning globally without the need for base stations. These capabilities make it a suitable for integrators to produce a highly efficient land mobile-mapping system.
For lidar integrators, the Trimble AP+ Land OEM is compatible with the POSPac MMS LiDAR QC tools. SLAM technology computes the IMU to lidar boresight misalignment angles and also adjusts the trajectory to achieve the highest level of georeferencing accuracy in the generated point cloud.
Hurricane Ida assessment imagery and data are now available. Ida was a Category 4 Atlantic hurricane from Aug. 26 to Sep. 4. (Screenshot: NOAA)
Applanix, a Trimble Company, and the National Oceanic and Atmospheric Administration (NOAA) have collaborated to provide critical information to first responders in the wake of Hurricanes Henri and Ida.
Applanix’s high-accuracy direct georeferencing (DG) technology enabled NOAA to quickly collect aerial mapping imagery to
provide valuable disaster remediation information to first responders
demonstrate the value of mapping technology in preparing for and responding to emergency situations such as hurricanes, tornadoes and other disasters.
Within hours of Hurricanes Henri and Ida making landfall, NOAA’s National Geodetic Survey collected post-storm imagery using the latest generation Digital Sensor System (DSS). The sixth-generation DSS, designed and manufactured for Applanix by Lead’Air, is the most powerful to date, thanks to several new features introduced within the solution:
simultaneous full color and near-infrared image capture using high-performance Phase One iXM 100 MP NIR and 150 MP RGB cameras
option to fly the cameras in wide coverage oblique or traditional overhead (straight line down) mode for mapping with uninterrupted measurement
embedded Trimble AP60 GNSS + inertial OEM DG solution for mapping without the need for ground control or aerial triangulation
Applanix POSPac post-processing software featuring the Trimble post-processed CenterPoint RTX correction service (PP-RTX) for centimeter-level mapping without GNSS reference stations
in-air development of raw imagery to JPEG-ready files for creating map products immediately upon landing
Lead’Air’s X-Track flight management, which enables the system to be flown outside of planned flight lines to follow roads, rivers and coastlines.
Applanix’s DG technology suite provides direct GNSS inertial georeferencing, meaning that all pixels in the aerial images taken by NOAA are mapped at their exact location on the ground.
“We have worked with Applanix for nearly 20 years,” said Michael L. Aslaksen Jr., chief of the remote-sensing division, NOAA’s National Geodetic Survey. “The level of sophistication they bring to aerial imagery and mapping keeps our team at the forefront of the industry. Their customer support team is always open to new ideas, new innovations and doing whatever it takes to get the job done.”
First responders have access to this imagery and mapping within 24 hours via the cloud (as does anyone at storms.ngs.noaa.gov) and can map detailed response plans based on highly accurate data highlighting where the greatest need lies.
Access to this turnkey emergency response imagery is available to any federal agency, municipality, insurance company or other entity that depends on highly accurate information to plan for and recover from disasters.
Applanix, a Trimble Company, has introduced new term licenses with full maintenance and support for its desktop post-processing software — POSPac Mobile Mapping Suite (POSPac MMS) and POSPac Unmanned Aerial Vehicles (POSPac UAV).
In addition, a new subscription for POSPac PP-RTX for UAV is also available.
The new licensing options lower the upfront investments required and enable customers to always have the newest features with updates included as part of the bundled maintenance and support.
The announcement was made at Intergeo 2021, a conference on geodesy, geoinformatics and land management, which took place this week in Hannover, Germany.
“The new licensing options for POSPac MMS and POSPac UAV provide our customers with maximum flexibility for acquiring full access to our industry-leading post-processing solutions. The options offer lower upfront initial investments and provide customers with full access to future releases and 24/7 customer support, as part of the included maintenance in the license agreements,” said Joe Hutton, Applanix’s Director of Inertial Technology and Airborne Products.
The new POSPac PP-RTX for UAV subscription is available with varying term lengths to accommodate user requirements. POSPac PP-RTX enables quick and easy data processing without a base station. The correction data is available within minutes after mission completion and requires a single button click in POSPac to launch. Customers will be able to process up to 30 minutes of dynamic data from the UAV platform.
The new licensing options and subscriptions are available now through the Applanix global sales channels.
A roundup of recent products in the GNSS and inertial positioning industry from the November 2020 issue of GPS World magazine.
OEM
GNSS receiver
Sub-decimeter accuracy without additional service subscription
The AsteRs-m2-Sx. (Photo: Septentrio)
The SECORX-S product line, which first offered GNSS OEM boards, now also includes a compact mosaic-Sx module and ruggedized receiver in an IP68 chassis, the AsteRx SB Sx. The multi-constellation multi-frequency SECORX-S receivers deliver sub-decimeter positioning without the need for additional correction service subscription or maintenance. The PPP-RTK correction service is integrated directly into Septentrio’s core GNSS technology. The addition of modules and boxed receivers to the SECORX-S line providesz accurate positioning to applications such as precision agriculture, UAVs, robotics and construction.
Smart Power GNSS signal splitters improve GNSS service reliability and minimize service interruptions. The professional-grade splitters — TW162 (one antenna/two receivers) and TW164 (one antenna/four receivers) — offer system redundancy and fail-over capability. The splitters are designed to improve GNSS service reliability and reduce signal reception failures. Both splitters offer system redundancy and fail-over capability. They support GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3 and L-band correction services.
The EM919x 5G NR Sub-6 GHz and mmWave embedded modules include an integrated GNSS receiver. Based on the industry-standard M.2 form factor, the modules will enable original equipment manufacturers (OEMs) to securely deploy 5G connectivity worldwide at the highest possible speeds with ultra-low latency for routers and gateways. The modules support mmWave, sub-6 GHz and LTE, as defined by the 3GPP Release 15 standard. Applications include private networks, enterprise networking, edge processing, live streaming, video security, e-gaming, smart factories, robotics, drones, virtual reality, machine learning, and new Industrial IoT applications.
Tactical Embedded series of GNSS/IMUs. (Photo: VectorNav)
The Tactical Embedded series of GNSS/IMUs feature a tactical-grade inertial measurement unit (IMU) and a multi-band GNSS receiver. The line delivers milliradian attitude accuracy and centimeter-level positioning capability in a miniature 15-gram package. The small size enables cost reductions for a range of autonomous pointing and geo-referencing applications such as gimballed intelligence, surveillance and reconnaissance (ISR); satellite communication systems; lidar mapping; and photogrammetry. The line supports external SAASM GPS for defense applications in ISR, electronic warfare, munitions and UAV navigation. The line includes the VN-110E IMU/AHRS, the VN-210E GNSS-aided inertial navigation system (INS), and the VN-310E dual-antenna GNSS/INS.
VectorNav Technologies, vectornav.com
GNSS/INS Sensor
Designed for dynamic environments
Photo: CHCNAV
The CGI-610 GNSS/INS high-precision dual-antenna receiver offers reliable and accurate navigation and positioning for demanding land, marine and aerial applications. The tight fusion of the latest GNSS technology with an industrial-grade MEMS IMU is powered by CHCNAV’s algorithms to deliver accurate hybrid position, attitude and velocity data, even in complex and obstructed environments where GNSS outages can occur. The CGI-610 supports data output up to 100 Hz to meet the requirements of highly dynamic applications such as airplane, train and automobile. An optional external odometer sensor for ground vehicles can provide an additional measurement of displacement and speed, which is fused with the GNSS/INS navigation solution.
Bad Elf Flex is a scalable-accuracy GNSS receiver with a daily option to choose between L-band and real-time kinematic (RTK). In standard configuration, it achieves 30-60 cm accuracy in real time for GIS use. Consuming a Bad Elf Flex Token unlocks a full RTK workflow for a 24-hour period to deliver 1-cm horizontal accuracy. Bad Elf Flex stores the tokens directly on the receiver, making them available for use anytime. Customers requiring high accuracy at all times can purchase the Bad Elf Flex Extreme bundle, with RTK capabilities permanently unlocked, for a one-time upgrade fee.
The R550 data collector features an industrial-level design and new hardware platform to ensure efficiency and productivity in the field. The IP67 dust-and-waterproof rating protects the R550 from most harsh environments. Equipping it with a 7,000 mA Li-ion battery allows more than 14 hours of continuous operation, while fast-charging technology means four hours for a full charge. The 5-inch-wide sunlight-readable, high-resolution screen provides a smooth experience for any operation. The integrated autofocusing camera helps enhance job documentation by taking photos on site and sharing job information with colleagues. Survey Master field software available on the R550 controller ensures efficient surveys in the field, including topographic surveys, stakeouts, coordinate geometry (COGO) and more. Powered by the Android 8.1 operating system and designed with 4G RAM, 64GB ROM and 4G/BT/Wi-Fi on board, users can run other third-party apps based on their specific requirements.
The Trimble AP+ Air OEM solution provides direct georeferencing of airborne sensor data and enables users to accurately and efficiently produce maps and 3D models without the use of ground control points. It is designed for manned platforms, yet small enough for use on UAVs. It is also compatible with airborne remote sensors, including photogrammetric cameras, lidar, hyper- and multi-spectral cameras, and synthetic aperture radar. The Trimble AP+ Air features dual embedded survey-grade GNSS chipsets, an onboard inertial measurement unit (IMU), an external IMU, and the new Applanix IN-Fusion+ GNSS-aided inertial firmware. It is configurable to support the direct georeferencing accuracy demands of low-flying UAVs and high-altitude manned platforms. Trimble AP+ Air is supported by Applanix POSPac MMS post-processing software with CenterPoint RTX post-processing for centimeter-level positioning anywhere in the world without the need for base stations.
American-made drone aimed at government agencies and military
Photo: Teal
The Teal Golden Eagle drone is designed for short-range surveillance and reconnaissance missions. It features a FLIR Handron dual-camera sensor on a two-axis stabilizer, giving it color vision at 4K 60 fps and thermal vision for extended operations. The payload is hot-swappable. It has a flight time of up to 50 minutes and can fly at speeds of 50 mph with a range of 2 miles. It is able to fly in wind speeds of up to 30 mph and can operate between –32° and 110° Fahrenheit. Forward-facing obstacle avoidance and rear-facing visual-inertial odometry estimates location without the need for GPS. The platform has received approval from the Department of Defense.
A new line of AccuAuto triple-band antennas are designed to provide strong clean code and phase signals to enable high-precision real-time kinematic (RTK) and precise point positioning (PPP) navigation. Model TWA928 supports GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a and NavIC-L5 signals and frequency bands (the TWA928L includes support for L-band correction services). The AccuAuto line features patented Accutenna technology multi-constellation and multi-frequency antenna elements as well as an integrated ground plane, a radome and an underside cover that provides mist and condensation protection. A deep pre-filter minimizes out-of-band noise and maximizes in-band reception. All AccuAuto components are certified and designed to perform under challenging environmental conditions, such as extreme temperatures (–40° C to +125° C), shock and vibration.
The CheetahNAV provides situational awareness for harsh environments and battlefield conditions, providing the crew of a light military vehicle with highly accurate position information through an advanced inertial measurement system (IMS) comprising several aids, including a gyro-compensated compass and an advanced Kalman-filter-based algorithm. The system provides dead-reckoning horizontal position accuracy of 0.2% of distance traveled in a GNSS-denied situation — accuracy of 200 meters over 100 kilometers. It can integrate with inertial navigation systems (INS). Combined with GNSS and compass information, the system enables dead-reckoning and accurate positioning of the vehicle in tactical situations. The tactical-grade integral inertial measurement unit (IMU) ensures jam-free operation.
Applanix, a Trimble company, has introduced the Trimble AP+ Air OEM solution for direct georeferencing of airborne sensor data.
The solution enables users to accurately and efficiently produce maps and 3D models without the use of ground control points.
The Trimble AP+ Air is a powerful solution for manned platforms, yet small enough for use on unmanned aerial vehicles (UAVs). It is also compatible with virtually any type of airborne remote sensor, including photogrammetric cameras, lidar, hyper and multispectral cameras, and synthetic aperture radar.
Comprised of next-generation compact, low-power hardware, the Trimble AP+ Air features dual embedded survey-grade GNSS chipsets, an onboard inertial measurement unit (IMU), an external IMU, and the all-new Applanix IN-Fusion+ GNSS-aided inertial firmware. It is configurable to support the direct georeferencing accuracy demands of low-flying UAVs to high-altitude manned platforms.
“We have taken the most advanced features of Applanix direct georeferencing and Trimble GNSS technology and packaged them into a powerful new, compact and versatile solution,” said Joe Hutton, Applanix’ director of inertial technology and airborne products. “It provides the flexibility required by systems integrators to embed a single hardware solution that can then be configured to meet the different direct georeferencing needs of a specific sensor type, whether flown on a UAV or manned aircraft. It truly is an ‘integrate once, use many times’ solution.”
The Trimble AP+ Air is fully supported by the Applanix POSPac MMS post-processing software, which features CenterPoint RTX post-processing for centimeter-level positioning anywhere in the world without the need for base stations. These capabilities make the solution ideal for integrators to produce a highly efficient airborne mapping system.
For lidar integrators, the Trimble AP+ Air is compatible with the POSPac MMS LiDAR QC Tools for computing boresight as well as adjusting the relative accuracy of the POSPac trajectory being used to generate the point cloud. For integration with cameras, the solution is supported by the POSPac MMS Photogrammetry Tools for computing boresight and performing camera IO quality control.
The Trimble AP+ Air OEM solution and POSPac MMS are available through Applanix sales channels.
GeoCue Group has released the True View 615 and True View 620 UAS lidar 3D imaging systems. The True View systems are compact, survey-grade 3D imaging sensors designed for small unmanned aerial systems.
True View 615 and 620 are equipped with Riegl’s miniVUX-2UAV laser scanner integrated with dual photogrammetric cameras. Position and orientation is provided by an Applanix APX-15 (True View 615) or extreme accuracy APX-20 (True View 620).
All True View 3D imaging systems are bundled with Applanix POSPac, True View EVO post-processing software and True View Reckon data management solution.
The Riegl laser scanner and dual photogrammetric cameras have been carefully configured to provide a fused lidar/imagery field of view of up to 120°. The system includes full post-processing software that generates a stunning ray-traced 3D colorized point cloud and geocoded images.
An upgrade path will be available to promote a True View 615 to a True View 620 by adding the Applanix APX-20 external inertial measurement unit.
The True View product line gives mappers and surveyors the ability to deliver high-quality analytic data with exact accuracies. These deliverables are generated using workflows and tools within GeoCue’s post-processing software, True View EVO. Examples of derived products include bare Earth models, profiles, cross sections, topographic contours, volumetric analysis and more.
“Our Quanergy-based True View 410 has rapidly become the standard for general purpose drone 3D Imaging, where moderate vegetation penetration and accuracies of 5 cm RMSE are adequate,” said GeoCue’s President, Lewis Graham. “The True View 615/620 provides a solution for situations where deeper vegetation penetration, wire extraction and extreme accuracy are required. These are great new additions to the True View product line.”
The True View 615/620 will be available for shipment late June.
Prepping for flight: Andreas Garbe, AgSurvey, sets up the UX5 HP for a topographic survey at Severn Beach, a village in South Gloucestershire. (Photo: Trimble)
Based in Bristol, AG Surveys has been collecting topographic beach surveys around the country as part of England’s Environment Agency’s coastal monitoring campaign.
In the first integrated approach of its kind in the program, AG Surveys uses the Trimble UX5 unmanned aerial system (UAS) equipped with a Trimble/Applanix GNSS receiver along with photogrammetry software. The UAS-based system has not only confirmed its viability for coastal monitoring, it has been bringing new business opportunities ashore since 2017.
For each beach, AG Surveys must provide one baseline survey based on a 5-meter grid with a height accuracy of 3 centimeters. Also required is a series of profile line surveys. Profile surveys follow pre-defined lines set every 50 meters from the back of the beach to the low tide line, with GNSS measurements taken within 10 centimeters of each side of the line.
Crews typically cover 3 square kilometers a day, flying four to five Delair drone flights at an altitude between 100–120 meters, at speeds of 80 kph and a lateral overlap of 80%. To ensure the reliability and accuracy of the UAS data, they use a minimum of 10 ground control points (GCPs) for each flight block and measure each target’s position with a GNSS receiver.
Once flights are complete, the team imports into Trimble Business Center (TBC) the flight and GNSS data and the base station survey data. Using both on-board GNSS positioning data and the ground control data, they process precise, short baselines between the base station and each photo point. All images are then integrated into Trimble’s Inpho UASMaster software to create a dense point cloud and a seamless orthophoto of the entire area of interest. (UASMaster is now integrated into the TBC Aerial Photogrammetry Module). If needed, they can also use UASMaster to produce a seamless, georeferenced orthophoto directly from the point cloud.
