Tersus GNSS is now offering its David real-time kinematic (RTK) GNSS receiver with seven new base/rover kits.
Tersus GNSS is a provider of centimeter-accuracy GNSS RTK solutions. The Tersus David GNSS receiver with its components create an affordable solution delivering high-precision signal reception, integrated in a small, and lightweight package.
The David GNSS receiver supports GPS L1/L2, GLONASS G1/G2 and BeiDou B1/B2. With David, surveyors users can take full advantages of common platforms such as smartphones, tablets or traditional handheld modules to collect data.
Coupled with an external antenna, the Survey App and post-processing software, the David GNSS receiver is a low-cost solution for all survey applications, including real-time RTK positioning and data collection for PPK.
Four (4) GB on board an embedded multimedia card (eMMC) makes it easy to save data for post processing. The compact, IP67-rated enclosure and versatile accessories alleviate most inconveniences encountered in field work.
“The launch of David GNSS Receiver marks a major step forward for Tersus as well as for surveying professionals,” said Xiaohua Wen, founder and CEO of Tersus. “The David is a cost-efficient and palm-sized GNSS receiver. Tersus is constantly working to make each surveying task easier and more productive by providing high-quality GNSS RTK surveying equipment. Our focus is on enabling surveying professionals make data collection more convenient, post (data collection) processing more accurate, and better equipping them to do surveying in the field.”
Hemisphere GNSS has released the new single-frequency, multi-GNSS Vector V123 and V133 all-in-one smart antennas with integrated Atlas L-band designed for professional and commercial marine applications.
The company made the announcement at the Oceanology International conference being held this week in London, U.K.
Powered by Hemisphere’s Crescent Vector technology, the new V123 and V133 are multi-GNSS compass systems using GPS, GLONASS, BeiDou, Galileo and QZSS for simultaneous satellite tracking to offer heading, position, heave, pitch and roll. Both antennas support NMEA 0183 and NMEA 2000.
The V123 and V133 thrive in radar/ARPA, AIS, ECDIS, side-scan survey, multi- and single-beam surveys, dredging and general navigation applications.
The V123 and V133 rugged smart antennas combine Hemisphere’s recently announced Crescent Vector H220 OEM board and two superior multipath- and noise-rejecting antennas (spaced 50 centimeters apart) in a single enclosure.
The smart antennas require only a single power/data cable connection for fast and reliable installations, even in the presence of strong radio transmissions. Both Vector models provide 0.3-degree heading accuracy and sub-meter DGPS accuracy, as well as optional 0.5-meter Atlas L-band accuracy.
The V133 includes all the features of the V123 and adds the capability of receiving differentially corrected data from land-based beacon stations. Ease of installation and no maintenance or servicing enhances the simplicity of these new Vector models.
“The Vector V123 and V133 GNSS compasses represent significant enhancements to our industry leading models they replace, providing even greater performance, improved robustness and excellent value,” said Miles Ware, director of marketing at Hemisphere GNSS. “Users now have an even higher performing all-in-one Vector for their commercial and professional needs with the addition of BeiDou, Galileo, and QZSS as well as Atlas L-band corrections.”
Hemisphere GNSS has introduced the Vector V1000 GNSS receiver for precision marine applications. The V1000 provides high-accuracy heading, position, pitch, roll and heave data.
The company made the announcement at the Oceanology International conference being held this week in London, U.K.
The V1000 supports multi-frequency GPS, GLONASS, BeiDou, Galileo, QZSS and IRNSS (with future firmware upgrade and activation) for simultaneous satellite tracking. The receiver is powered by Hemisphere’s Athena real-time kinematic (RTK) engine and is Atlas L-band capable.
The new V1000 is designed for professional marine applications, such as hydrographic and bathymetric surveys, dredging, oil platform positioning, buoys and other applications that demand the highest level 3D positioning accuracies. Based on Hemisphere’s Eclipse Vector technology, the V1000 uses the most accurate differential corrections including RTK and Atlas L-band.
The V1000 is Hemisphere’s flagship receiver, with an integrated display, that can be conveniently installed near the operator. The two antennas can be installed at user-specified separation, providing valuable flexibility in terms of install locations and desired heading accuracy.
The V1000 has heading accuracy of better than 0.01 degree when using a 10-meter antenna separation. With CAN, serial, Bluetooth, Wi-Fi and Ethernet support and flexible installation, the all-new rugged enclosure gives the V1000 the advantage of working reliably in harsh environments, the company said.
Hemisphere GNSS has released its RTK-enabled Vector V500 smart antenna. The company made the announcement at the Oceanology International conference being held this week in London, U.K.
The V500 supports multi-frequency GPS, GLONASS, BeiDou, Galileo, QZSS and IRNSS (with future firmware upgrade and activation) for simultaneous satellite tracking. The V500 is powered by Hemisphere’s Athena RTK (real-time kinematic) engine and is Atlas L-band capable.
Using Hemisphere’s Eclipse Vector technology, the all-in-one V500 is a complete compass system that offers GNSS-based heading, pitch, roll, heave and RTK positioning, the company said.
The V500 introduces support for Ethernet, Bluetooth and Wi-Fi in addition to NMEA 0183 and NMEA 2000 and offers unmatched ease of installation.
Purpose-built for challenging applications, the V500’s rugged enclosure works reliably in harsh environments and is designed for professional marine applications requiring high-precision heading combined with RTK or Atlas positioning.
The V500 is Hemisphere’s flagship rugged smart antenna. It combines the recently announced Eclipse Vector H328 OEM board with two superior multipath- and noise-rejecting antennas (spaced 50 cm apart) in a single enclosure.
The V500 requires a single power/data cable connection, allowing for fast and reliable installations even in the presence of strong radio transmissions.
According to Hemisphere GNSS, the V500 delivers 0.17 degree heading accuracy along with RTK positioning and Atlas L-band accuracies of up to 8 cm (95 percent).
“The Vector V500 combines our expertise in GNSS, smart antenna design, and our new technology features such as Atlas,” said Lyle Geck, senior product manager at Hemisphere GNSS. “With very competitive RTK performance and the simplicity of installation offered by the all-in-one smart antenna design, it is an incredible product.”
Atlas GNSS Global Correction Service. Atlas is a flexible and scalable GNSS-based global L-band correction service providing robust performance and correction data for GPS, GLONASS and BeiDou, the company said. Atlas delivers correction signals via L-band satellites to provide accuracies ranging from sub-meter to sub-decimeter levels, and leverages approximately 200 reference stations worldwide, providing coverage to virtually the entire globe.
Atlas is available on all Hemisphere Atlas-capable single- and multi-frequency, multi-GNSS hardware and complements third-party GNSS receivers by using Atlas corrections with Hemisphere’s SmartLink and BaseLink capabilities. Atlas creates fast convergence times, and is robust and reliable near wharfs, piers, offshore rigs, cranes and other overhead obstructions.
Atlas Basic provides users of both single- and multi-frequency Atlas-capable hardware the ability to achieve better than SBAS performance anywhere Atlas correction service is available. Atlas Basic offers accuracy of 30 cm (pass-to-pass 95%) to 50 cm (absolute 95%) and offers instantaneous sub-meter accuracy.
The Vector V500 is featured in the Hemisphere GNSS booth (G500) at the Oceanology International exhibition and conference in London, UK, March 13-15. The new V500 will be available soon through Hemisphere’s global dealer network.
Japan-based Aerosense Inc. has commercialized its AEROBO marker solution for drone surveying using the u‑blox NEO‑M8T timing module.
Photo: Aerosense
Conceived to compute absolute time to within 20 nanoseconds using incoming GNSS signals, the NEO-M8T lets users access raw GNSS data output, making it attractive for positioning applications that rely on post-processing GNSS data to enhance location accuracy.
Aerosense’s surveying solution is designed to reduce the time spent surveying construction sites. By combining ground markers equipped with a GNSS receiver with surveying drones and cloud-based data processing, Aerosense has converted huge workloads into a user-friendly application.
The surveying operation on the site involves setting up ground markers fitted with u‑blox NEO‑M8T high-performance GNSS receivers. The smart ground markers send the GNSS data they receive to the cloud, where it is post-processed using a static surveying algorithm to achieve high accuracy.
The AEROBO solution can transform high-resolution drone images into a survey-accurate map by using the absolute geographic coordinates of specific points on the surveyed terrain. Images gathered by overflying the terrain with the drones are combined to create centimeter-precise outputs, including orthomap views, 3D models and point clouds.
The challenge that engineers at Aerosense faced while developing their solution was achieving sufficiently high position accuracy. “We found a robust solution to the accuracy challenge by using the u‑blox NEO‑M8T high-performance positioning module,” said Satoru Shimizu, project leader of AEROBO technology development at Aerosense.
Geneq has launched the SXblue Premier GNSS receiver, which is available in a submetric version (GNSS) or centimetric version (real-time kinematic, RTK).
The new SXblue Premier GNSS receiver is equipped with the Pacific Crest Maxwell 6 Trimble technology with BD910 (GNSS version) and BD930 (RTK version) OEM boards, delivering 220 channels to acquire and track GNSS signals from all constellations in view. It makes effective use of GPS, GLONASS, Galileo, BeiDou, QZSS and SBAS signals for outstanding highly precise positioning.
The SXblue Premier is small and light weight, and rugged for field work. It is equipped with dual mode for Bluetooth V2.1 and Bluetooth V4.0, ensuring the unit’s wireless communication with any Android or Windows terminal. With its two models, the user will have large efficiency and flexibility on the field either with SBAS corrections or RTK reference networks.
In addition, SXblue Premier can be configured for Wi-Fi hotspots, allowing users to connect and access a web management platform. It also can be used as a data link, providing a quick connection to the internet to receive corrections from reference station (CORS) networks so that it can process RTK measurements.
With its internal memory using an 8-GB solid state disk, SXblue Premier provides enough storage space for field data collection or raw data recording for a high data sampling rate.
Multiple compatible software programs — including FieldGenius, Carlson, Collector for ArcGIS — will meet the users’ diverse need, making SXblue Premier more powerful and flexible.
While not as glamorous as mild-mannered Clark Kent holding down a day job while Superman comes to the rescue in time of crisis, there are professional surveyors who work day jobs to perform our duties as practitioners to make a living and participate in association activities in their off-hours to help promote and protect their profession as well as the public they serve.
Many of the hours spent to protect the profession are in the political arena, where the battle for budget dollars and service rights are fought on nearly a daily basis. Because of the reliance of the surveyor on technological advances, the profession has been thrust into the political arena at all legislative levels. The surveyor has been tasked with leading the discussion and help the public understand why significant dollars are needed for funding many different programs to continue with our high-tech trends and lifestyles.
Three of the four presidents on Mount Rushmore started as surveyors — George Washington, Thomas Jefferson and Abraham Lincoln. (Photo: National Park Service)
The role of the surveyor has not been considered political even though several significant U.S. presidents were surveyors in their early careers. Surveyors aren’t particularly known for their public personas, much less their political prowess. Other than states that still have county surveyors, rarely do practitioners stray beyond local municipal government. One is more likely to see a professional engineer or architect as an elected official than a surveyor, but that doesn’t mean the issues we face are any less important.
My current position is a professional land surveyor with a full-time job overseeing a department in a multi-discipline office in a major metropolitan area. Besides being a contributing editor to GPS World through these articles, I also voluntarily wear many hats within our state association and the national surveying society. Several of these hats are government affairs positions at both state and federal levels, as it has become a full-time operation to keep a watchful eye at all governmental levels. From changes in regulations, budgetary revisions and threats to our professionl by outside entities, government affairs take a small army of people to keep abreast of all situations.
This month’s submission is just a snapshot of the current National Society of Professional Surveyors (NSPS) Joint Government Affairs Committee action item list being addressed and monitored through its committee members and a governmental lobbyist. The importance of this list is to give the reader a sampling of the seemingly endless battles being waged on Capitol Hill by NSPS and its members nationwide.
All these issues have GNSS at their heart and will have dire consequences if any of these subjects fall short of their intended marks.
This is not just about the GNSS and how we collect data; it’s also about the necessity of large scale data collection to provide better and safer services to the citizens of the United States and its territories.
Our current datasets and standards for data collection, like our infrastructure, is aging and lacking in detail. Serious upgrades are overdue, so several actions have been put forth to try to rectify the shortcomings.
3DEP
Formally known as the 3D Elevation Program, this language was introduced as part of S. 1460 (“Energy and Natural Resources Act of 2017”) by Senator Lisa Murkowski of Alaska. This program is being created so that consistent elevation data, cultivated through many surveying and mapping sources including lidar, will be available for efficient design use throughout the American infrastructure.
While it currently does not have a single line item in any budget, the USGS Budget Summary lists its necessity in the Core Science Systems Program as part of the National Geospatial Program. This program is intended to provide high-quality topographic, geologic and hydrographic data nationwide to assist with further development of energy, transportation, drainage, emergency response and hazard mitigation.
As part of the 2019 President’s Budget, the USGS Green Book also lists having the entire nation covered by an ongoing lidar program by 2033, along with completing a significant amount of data collection by various means in Alaska by 2022, including high-resolution interferometric synthetic aperture radar (IfSAR) necessary for data collection in more difficult terrain.
The Green Book also lists high-resolution hydrographic data to support flood risk management studies, as the frequency of large scale flooding seems to be increasing substantially in more places than ever before. It also includes additional mapping data, programming and functionality for emergency personnel charged with oversight of public safety in times of crisis.
FAA reauthorization
The current FAA authorization bill expires on March 31. The biggest hang up holding up getting the bill reauthorized is privatization of the air traffic controllers, but there are rumors of tightening of UAV rules due to the rapidly growing use of the vehicles for business and personal use.
Surveyors are working with federal and state officials to help implement reasonable rules for use and coverage of the UAV as the field of surveying has been drastically affected by use of aerial vehicles. Many tasks that used to take days now take hours with increase accuracy, so the effects of the UAV will be seen for many years to come.
Digital Coast Act
One of the legislative acts that NSPS was a big part of in 2017 was Senate Bill 110, “The Digital Coast Act” which led to the introduction of the companion bill in the House as H.R. 4062. This Act will allow NOAA to perform the necessary actions to actively and effectively monitor all coasts (including the Great Lakes) by various means, including bathymetric and conventional survey methods. This will require services to be performed by public and private surveyors primarily with GNSS capability to provide NOAA with standardized information based upon established datum.
FLAIR Act
The Federal Land Asset Inventory Reform (FLAIR) Act of 2017 was introduced as House Resolution 2199 to help with creating a database of government property nationwide. The Government Accountability Office (GAO) has stated that the management of federal real property has become a “high-risk” item on its list of duties. Management of the number and value of properties has increased to a point that an overall dollar amount of federal buildings and land cannot be accurately determined.
How does the surveyor fit in with this issue? Simple. The U.S. government will need to upgrade its database of existing facilities through having them surveyed for asset management. Part of the requirements for providing these surveys will be completing the work in datums that will be following the geographical databases being designed to contain the parcel and building information. All this data will have geospatial information regarding parcel, address, utilities and functionality of the inventory, so providing the data with the sufficient attributes will become a key role for the surveyor. GNSS data collection will be at the heart of this monumental task.
Geospatial Data Act
As introduced in May 2017, the Geospatial Data Act (GDA) of 2017 is intended to jumpstart the nationwide initiative to develop and coordinate efforts to collect and maintain new datasets of elevation and infrastructure information. It is intended to improve and enhance federal geospatial activities to encourage state and local agencies to participate at the local level.
It is interesting to note, however, that the revised Geospatial Data Act was introduced by the same sponsors that did not include procurement procedures that follow the typical Brooks Act of quality-based selection, and instead relied on bid-based selection commonly found with suppliers. Both bills are being vetted by their sponsors and potential geospatial providers for clarity with ongoing debate going forward.
Hydrographic Services Improvement Act
H.R. 211 bring us the Hydrographic Services Improvement Act to provide NOAA with incentive and funding to standardize surveys desperately needed in waterway areas. Ongoing discussion continues this spring to determine sources of funding and priority of projects.
Infrastructure bill
February brought us the introduction of a significant infrastructure program aimed at improving roads, airports and bridges, with other major improvements across the country. This program is noteworthy in recognizing the need of current geospatial data and inventory of major infrastructure needs. The program sets forth the need for surveying, mapping and geospatial data for planning, design, construction, operations and maintenance for a multitude of projects nationwide. Much more will be discussed regarding the funding and priority of projects as the political year moves on.
LightSquared/Ligado
Readers may remember when the original confrontation with LightSquared began in 2011, and the subsequent battle over the frequency ranges adjacent to the GPS bandwidth. The FCC gave LightSquared initial but conditional approval to move forward with terrestrial-based transmission for 4G cellular transmission for up to 40,000 land-based stations. Testing by private and governmental agencies through 2011 and 2012 proved that LightSquared would greatly harm GPS activity for both public and private use. Once exposed, the conditional FCC approval was rescinded and LightSquared retreated into the shadows…until now.
Reformed as Ligado, it has fresh investors and is making a charge into 5G technology with a revised game plan. While it is also looking to use other spectrums for communication, it once again is dangerously close to other current uses. Couple the proximity of adjacent bandwidth with the intense land-based signal versus a very weak satellite signal, there will be significant overriding by the new user. All of this is still being worked out through the FCC and the Department of Defense, so final resolution is yet to be seen.
IMAGES Act
The National Flood Insurance Program (NFIP), as part of FEMA, is looking to move forward with legislation introduced as Improvement of Mapping, Addresses, Geography, Elevations and Structures (IMAGES) Act (H.R 4905). This act intends to reform the NFIP program by utilizing new elevation data collected through the 3DEP program, which will be combined with other parcel attributes including addresses and structure types. This data will then be combined with refined floodway information to identify parcels that are more susceptible to damage caused by storms and flooding.
New legislation can be a good thing, but only if funding can be provided. This bill could provide a major upgrade to the flood mapping and insurance program, but it will hit a big snag with lack of monetary support. The proposed funding for FY2019 is $100 million, yet the project costs for the FY2018 budget is $178 million. This significant difference will make a large impact on the effectiveness of the program and proposed revamp.
Railroad reauthorization
NSPS has spent several years working with various legislators trying to find the right bill to insert language to require railroads to monument their routes before removing tracks. But with the recent accidents of various rail lines, the spotlight has been put on various factors that cause the incidents and how to eliminate their occurrence.
Positive train control (PTC) systems incorporate geospatial data collected through GNSS, lidar and conventional surveying means to work with operational systems to assess dangerous situations. Surveyors will need to be at the forefront of the necessary data collection so our efforts to continue lobbying for railroad funding will continue.
Net Neutrality Act
A political hot topic the surveyor doesn’t typically think about is net neutrality. Most people think they will be affected by lack of neutrality slowing down their home internet or streaming service, but for surveyors it will be a much bigger deal.
A remarkable number of surveyors and mappers use cellular data streaming to provide a connection to a positional correction service. The throttling of this data will effectively slow down the performance and quality of the positional data, leading to less reliability and productivity. It will also slow down the data interaction of office and field staff exchanging data and image files critical to project productivity and success.
So, when the call goes out to contact your federal representative to protect net neutrality, remember how it will affect your surveying business model and make that call.
How professional land surveying associations get it done
Many thanks to the countless hours put in by the NSPS Joint Government Affairs team, consisting of Committee Chair Pat Smith, NSPS Government Consultant John Palatiello, NSPS Federal Lobbyist John “JB” Byrd and NSPS Executive Director Curt Sumner. This group is constantly monitoring legislative action across the country as well as in D.C. and is quick to respond when action is needed on legislative issues. They do a tremendous job, yet not many see them in action. Hopefully all surveyors will continue to see and feel the benefits of their results.
As simple as the process is, the political world has gotten much more complicated as time marches on. From local municipal offices to Washington, D.C., getting things done through legislation has become a long process that takes patience and plenty of money to get your voice heard. Surveyors are no different than any other profession in that we must stay out in front of issues that affect our physical and business world. The important part is to stay informed and have a voice.
Let’s also remember those three fine individuals, memorialized on Mount Rushmore, who accomplished great things after their stints as surveyors, so anything is possible if we keep our voice in government.
Surveying has evolved into a highly technical professional with GNSS as a backbone method of data collection. With the U.S. government at the center of that technology, we need to make sure we, as the surveying practitioner, stays engaged.
The new software release of Survey123 for the ArcGIS mobile application now has Spike, a laser measurement solution by ikeGPS.
The paired technology dramatically accelerates field data capture and asset inspection activities.
Spike allows users to measure hard-to-reach objects from a distance by taking a photo with their smartphone or tablet. Users can then capture real-time measurements from that image, including areas, elevations, distances between two points, and GPS/GNSS location.
Use of the Survey123 integration with Spike will be of interest to organizations that use mobile workflows for asset and facilities management, field asset inventories and inspections, damage assessments, and tactical operations including disaster response.
Using Spike with Survey123 relieves fieldworkers of the burden of carrying paper maps to find the object of interest and lugging multiple pieces of specialized, expensive measuring equipment. Instead, with a single mobile device, fieldworkers can locate the correct asset, record measurement data, and report accurate data directly back to the office.
“The new Spike integration with Survey123 is a game changer for many field data collection and inspection workflows where the dimension of physical objects needs to be captured. Spike and Survey123 provide quick return on investment,” said Ismael Chivite, Esri product management lead. “The simplicity of the solution enables it to be quickly deployed and with little training. Customers are very enthused about this low-cost solution that will streamline many of their critical workflows.”
The ability to capture accurate measurements in the field is particularly useful when working in areas that don’t lend themselves to hands-on or close-up measurement. Spike’s laser can be used in ranges from 6 to 650 feet, with the option to select units of measurement in inches, feet, meters or centimeters. With it, a single fieldworker is able to more quickly and safely accomplish what may otherwise have taken multiple field staff and costly equipment.
The Spike laser device mounts to smartphones and tablets and connects via Bluetooth with the mobile device’s camera.
Survey123 with Spike runs on Apple iOS and Google Android smartphones and tablets.
After years of development and an intensive beta testing phase with key partners, Qinertia post-processing kinematic software is now being offered by SBG Systems.
Qinertia has been designed to help surveyors get the most of their surveys, according to SBG Systems.
After the mission, Qinertia gives access to offline real-time kinematic (RTK) corrections from more than 7,000 base stations in 164 countries — and always up-to-date. By creating a virtual base station near a project, the software delivers the highest level of accuracy without having to set up your own base station.
An advanced tight coupling algorithm has been designed by SBG Systems to deliver the highest accuracy and maximize RTK availability. Trajectory and orientation are greatly improved by processing inertial data and raw GNSS observables in forward and backward directions, especially in GNSS challenging environments (urban canyons, forest, etc.).
With advanced quality control indicators such as standard deviation, separations and GNSS quality feedback, Qinertia provides full understanding of a survey. With Qinertia, surveyors can quickly identify and solve issues such as mechanical installations or sensor alignment.
Qinertia has been designed to be easily integrated in a production workflow. It supports RINEX industry standard, and Septentrio, Novatel and Trimble native binary format.
A powerful ASCII export feature allows seamless integration with any third-party software. SBET and Google Earth are also supported for improved interoperability.
GEO Business, the United Kingdom’s largest geospatial exhibition and conference, has announced that registration is now open.
The GEO Business show has grown every year since its inception, and the 2018 show looks set to be the most successful show to date with more exhibition space and a brand new seminar program. The event will return to the Business Design Centre, in London, UK, May 22-23.
Since its record-breaking 2017 event last year, which welcomed 2,386 geomatics and geospatial professionals from around the world (a 48 percent increase since the launch in 2014), the exhibition has expanded onto the upper level. Exhibitors span the entire geospatial industry, showcasing cutting-edge technology and solutions that will mold the future of the industry.
The 2018 GEO Business show will expand to the second level of the Business Design Center. (Photo: GEO Business)
Confirmed exhibitors for 2018 include Survey Solutions Scotland, Land Registry, GAP Group, Phase One, Viametris, Surphaser/ MD3D, DHF Satellite and Ordnance Survey Ireland.
New for 2018 is a free-to-attend seminar program designed to demonstrate the remarkable impact geospatial technologies and solutions on the global environment. The program will feature case studies from companies demonstrating how they are reducing costs and risk while increasing productivity.
The 2017 GEO Business exhibit. (Photo: GEO Business)
The latest in augmented reality, building information management (BIM), geospatial information systems (GIS) and big data, laser scanning, mobile mapping, remote sensing and satellites, smart cities, surveying, UAVs, virtual reality and visualization will feature within the fields of architecture and construction, commercial property, environmental, equipment theft, floods, forestry, heritage, highways, hydrography, mining, rail and tunneling.
With geospatial technology now impacting on more and more industries, GEO Business is attracting visitors from a wider range of industry sectors than ever before.
“The geospatial industry is experiencing a huge transformation, everywhere you look at the moment you bare witness to the term ‘geospatial,’” Show Director Caroline Hobden said. “Innovative technology is steadily making its presence known in everyday life, whether it is through the revolutionary capabilities of augmented/virtual reality or the extraordinary data recorded by drones to name just a few, the world is sitting up and taking notice.
“Even the U.K. government budget made mention of geospatial at the end of last year and as a result we excitedly await further announcements about the Geospatial Commission whose focus will be on location aware technologies revolutionising the digital economy.”
The exhibition and seminar program will run alongside a strategic senior-level conference of invited speakers presenting and debating the role of geospatial in powering the Fourth Industrial Revolution, said GEO Business. The Fourth Industrial Revolution is changing how we live, work and communicate. It is reshaping government, education, healthcare and commerce — almost every aspect of life. The conference will celebrate, challenge and develop the role that geospatial has to play in maximizing the digital economy as part of this revolution.
Visitors will also have the unique opportunity to attend the well-established commercial workshop program hosted by exhibitors demonstrating their latest products and services and a full line-up of innovative social activities designed for informal networking with colleagues old and new.
The exhibition, workshops and seminars are free to attend. There is a fee-to-attend the conference with an early-bird discounted rate for registrations before April 16. Public sector, association members and student discounts are also available. Visitors are encouraged to register online in advance to beat the queues onsite.
For more information on stand sales or visitor registration, contact Caroline Hobden at [email protected] or call +44 (0)1453 836363.
As part of a framework agreement with Dubai Petroleum, Cyberhawk was appointed to inspect more than 350 risers on 63 offshore platforms. The inspection took one month to complete, followed by the production of more than 90 detailed engineering inspection reports.
Photo: Cyberhawk
The rationale behind Dubai Petroleum’s use of UAVs was to quickly complete detailed inspections of all their risers. Risers are traditionally a difficult area of an offshore platform to inspect; in the under deck and the splash zone, options for access, such as abseiling or scaffolding, are limited, extremely time consuming and very expensive.
Using UAVs as a scanning tool, the high-quality reports produced by the Cyberhawk team allowed the client to plan contact-based inspections or repairs. With a full inspection completed on all risers, defects can be tracked over time to understand their long-term degradation.
Daily reports were produced to notify Dubai Petroleum of potentially serious defects, with detailed inspection reports then produced by Cyberhawk’s experienced oil and gas inspection team.
On the same project, an additional three elevated flare stacks and 24 bridges were inspected, maximizing the value of the mobilization.
Image: Cyberhawk
“Having worked with Cyberhawk in the past, we understand and appreciate the potential on offer from UAV inspections,” said Dubai Petroleum’s asset integrity manager. “This confidence led us to use UAVs in a new area within our business; this risers survey project. The campaign was a great success and we are pleased with the outcome. The speed and efficiency with which this project was completed has proven that the scope and application of UAV inspection can be expanded for our requirements, and we look forward to continuing our relationship with Cyberhawk in the future.”
Two methods of spoofer detection, the identification and sourcing of false GNSS signals, have been released by Javad GNSS, using features available for all of its OEM GNSS boards.
Spoofer detection and alarm. This feature then identifies and isolates the spoofer signal, ignores it, and provides a position solution using only valid satellite signals.
Determination of the direction from which the spoofing signals emanate. This can aid in tracking down the actual spoofing source.
Spoofer Detection
With 864 channels and roughly 130,000 quick-acquisition correlators, the Javad GNSS Triumph chip can assign more than one channel to each GNSS satellite, in order to find all the signals that are transmitted with that satellite’s PRN code. If the chip detects more than one reasonable and consistent correlation peak for any PRN code, it concludes that spoofing is present and can the proceed to identify the spoofed signals.
In this case, it uses the position solution provided by all other clean signals (L1, L2, L5, and so on, from all GNSS constellations — GPS, GLONASS, Galileo, Beidou, and mroe) to identify the spoofer signal and use the real satellite measurement. If all GNSS signals are spoofed or jammed, then the system issues an alarm, directing the user to ignore GNSS and use other sensors in an integrated system.
Satellite and Spoofer Peaks
The figure below shows an example of a spoofer signal and a real satellite signal received at a GNSS receiver. These screenshots are from a real spoofer in a large city. The bold numbers are for the detected peaks. The gray numbers represent highest noise, not a consistent peak. A “*” symbol next to the CNT numbers indicate that signal is used in position calculation. Each CNT count represent about 5 seconds of continuous peak tracking.
The first screenshot shows no spoofing is present. The second shows that all GPS satellites are being spoofed.
No spoofer. Only one reasonable peak for each satellite. (Table: Javad GNSS)Table: Javad GNSS
In the above screenshot all GPS satellites have two peaks and all are spoofed. We were able to distinguish the spoofer signal and use the real satellite signals in correct position calculation as indicated by the ”*” next to the CNT numbers.
GNSS Overall View
The following screenshot shows the status of all GNSS signals. The format and the signal definitions are explained below.
Table: Javad GNSS
Tracked: Tracked by the tracking channels and has one valid peak only.
Used: Used in position calculation.
Spoofed: Has two peaks. Good peak is isolated, if existed.
Blocked: Blocked by buildings or by jamming. If jammed, shows higher noise level.
Faked: Satellite should not be visible, or such PRN does not exist.
Replaced: Real signal is jammed and a spoofed signal put on top of it. Because of jammer, it shows higher noise level.