Make your work more efficient | CHCNAV

Surveying & Engineering

Advanced GNSS and optical solutions to make your surveying and engineering projects more productive.

i83 is a high performance IMU-RTK GNSS receiver with pole tilt compensation

Surveying & Engineering

Mapping & Geospatial

Mobile mapping solution for 3D mass data acquisition.

AA450 Airborne LiDAR provides long range scanning up to 450 m with high point density

Mapping & Geospatial

Marine Construction

High-performance USVs, GNSS sensors, and echo sounders for marine survey and construction professionals.

Apache USV meets the most demanding unmanned marine survey requirements.

Marine Construction

Precision Agriculture

RTK auto-steering systems and GNSS base solutions for all farm sizes.

NX510 auto-steering systems with GNSS RTK technology provides superior performance during all farming seasons

Precision Agriculture

Machine Control & Construction

High-productivity GNSS sensors and solutions.

P2 GNSS sensors offer accurate heading and positioning solutions to any machine system integrators

Machine Control & Construction

News

Meet us at Ocean Business 2023 in Southampton

Meet CHCNAV at Ocean Business, Stand W88, to find out more about our marine survey solutions

Shanghai, China - We are pleased to announce that CHC Navigation (CHCNAV) will be exhibiting at Ocean Business 2023 at the National Oceanography Centre, Southampton, UK from 18-20 April 2023. CHCNAV is a global geospatial technology company that provides turnkey marine drones, advanced rugged GNSS positioning and heading sensors, and echo sounders to professionals in the marine survey industry. At Ocean Business 2023, visitors will have the opportunity to meet over 300 leading manufacturers and service providers shaping the future of ocean science and technology. They will have the opportunity to get their hands on autonomous marine systems, biological and chemical sensors, survey tools, and much more, whether at the dockside, onboard ships, or in test tanks. As the largest ocean science and technology event of 2023, Ocean Business is set to be the best event in its 15+ years of history. Figure 1. The partner of CHCNAV brings the Apache 3 USV for the remote-controlled hydrographic survey. Meet us at the Ocean Business 2023, Stand W88, to find out more about our marine survey solutions! More information on the exhibition and related events: https://www.oceanbusiness.com/ ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-03-09

2023-04-18 2023-03-20 Southampton, UK Meet us at Ocean Business 2023 in Southampton

Meet us at GEO CONNECT Asia 2023 in Singapore

CHCNAV will showcase the advancing sustainable & resilient geospatial solutions for an interconnected world at GEO CONNECT

Shanghai, China - We are pleased to announce that CHC Navigation (CHCNAV) will be exhibiting at Geo Connect Asia 2023 taking place on the 15th & 16th of March at the Sands Expo & Convention Centre in Singapore. CHCNAV is a global geospatial technology company providing state-of-the-art GNSS receivers, 3D reality capture LiDAR scanners, and turnkey marine and airborne drones for surveying and geospatial mass data acquisition, processing, and maintenance. Geo Connect Asia has proven to be the regional gateway to bring together the world's leading influencers in geospatial technology and location intelligence solutions in the heart of Singapore. The annual Geo Connect Asia Show & Conferences provide a two-day face-to-face meeting point for ASEAN's vibrant geospatial community. The event combines technologies from the digital construction, drone, and remote sensing markets, bringing geospatial solutions to the heart of decision-making. Figure 1. The scanning data captured by the AlphaUni 900/1300 LiDAR solution for the Digital Twin Project. Join us at the Sands Expo & Convention Centre, booth G10, to learn more about our geospatial solutions and explore partnership opportunities! More information on the exhibition and related events: https://www.geoconnectasia.com/ ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-02-14

2023-03-15 2023-03-16 Marina Bay Sands, Singapore Meet us at GEO CONNECT Asia 2023 in Singapore

Meet us at US Hydro 2023 in the USA

CHCNAV will showcase the hydrographic survey solutions to professionals in the marine industry during the US Hydro 2023

Shanghai, China - We are pleased to announce that CHC Navigation (CHCNAV) will exhibit at the US Hydro Conference at the Mobile Convention Center, AL, USA, that starts on Sunday, March 12th with the Student Outreach Program, followed by eight cutting-edge workshops on Monday, March 13th and technical sessions from March 14th to the 16th. CHCNAV is a global geospatial technology company that provides turnkey marine drones, advanced rugged GNSS positioning and heading sensors, and echo sounders to professionals in the marine survey industry. US Hydro is a biennial conference hosted by The Hydrographic Society of America (THSOA). It is the premier hydrographic conference in the US and alternates with the Canadian Hydrographic Conference (CHC), hosted by the Canadian Hydrographic Association (CHA). Figure 1. The Apache 6 USV, equipped with the lidar scanner and multibeam echosounder, takes part in the bridge construction project. Meet us at the US Hydro Conference, booth 59, to find out more about our marine survey solutions and dealership opportunities! More information on the exhibition and related events: https://www.thsoa.org/us-hydro ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-02-14

2023-03-12 2023-03-16 Mobile, USA Meet us at US Hydro 2023 in the USA

Join CHCNAV's Geomatics Community & Explore Dealership Opportunities

CHC Navigation delivers GNSS-enabled systems and solutions that cater to various geomatic applications, including surveying in cadastral, construction, mapping, mine, and marine environments. Since 2003, we have been a trusted partner to a global network of professionals and organizations in construction, engineering, environment, agriculture, mining, oil & gas, science, cadastral, and surveying services (hydrographic offices, natural resources management firms, and offshore wind farms). Whether our clients are private companies or individuals, or public organizations, we provide reliable and affordable technology to meet their needs. With the increasing demand for accurate and cost-effective technology, we anticipate strong growth and invite potential geomatics industry partners to join us in serving this market. We have the solutions to meet your clients' demands for accuracy and affordability, no matter where you are located. Explore the major geomatic applications where CHCNAV's high-precision, reliable, and robust GNSS solutions are the go-to tool: Cadastral Surveying With increasing urbanization, the need to accurately measure property boundaries becomes essential. Authorities need accurate land mapping to manage properties efficiently. CHCNAV's smart antennas and GNSS total stations play a crucial role in providing this information. Figure 1. The i83, the 1408-channel multi-band IMU-RTK GNSS receiver, provides unparalleled productivity for GNSS measurements, stakeout surveys, and other typical construction tasks. Construction Surveying and Earthmoving Accurate measurements are essential to ensure that buildings, roads, and other structures are built according to plan. The CHCNAV's GNSS smart antennas, sensors, field controllers, and software provide surveyors with the accurate data they need to do their jobs efficiently. In addition, the CHCNAV's GNSS RTK networks can significantly improve construction project operations by providing consistent positioning accuracy for all surveying tasks across the site and between various operators, regardless of the brand of RTK rover used. Our GNSS machine control solutions enable equipment operators to do their work efficiently by bringing significant gains in productivity, accuracy, and speed to earthmoving and grading jobs. Figure 2. The TG63 (installed on the grader), a high-accuracy automatic GNSS/INS grade control system that is designed to improve the quality and efficiency of grading operations. Related reading: Affordable Machine Control and Construction Solutions for SME Infrastructure Monitoring CHCNAV GNSS sensors and antennas help prevent natural disasters and enable rapid emergency response by monitoring critical infrastructure and the physical environment. Our server-based CPS RTK Network software, P5 geodetic GNSS stations, and C220GR2 GNSS antennas provide a powerful enterprise solution that delivers the highest accuracy and uninterrupted positioning and navigation services. Figure 3. The C220GR2, a high-performance GNSS/CORS antenna with the P5 reference station, and an example of a typical application - the GNSS-based reservoir dam monitoring. Mine Surveying Accurate GNSS positioning is crucial in every phase of open pit mining. Highly accurate topographic information is required for the operational safety of staff and machinery and for the success of mining operations throughout the life cycle, including exploration, discovery, development, production, and reclamation. CHC Navigation offers a full range of advanced technologies to help mining companies streamline exploration and development and gain a competitive advantage. Related reading: Manage and Develop Mining Infrastructure Efficiently with CHC Navigation Mapping and GIS, Photogrammetry, Laser scanning Collecting accurate GNSS data is essential for mapping, environmental planning, and urban design. Aerial surveys for 3D modeling require real-time or post-processed GNSS data for georeferencing, and high-precision GNSS systems are used to georeference point clouds generated by laser scanning and mobile mapping systems. CHCNAV offers devices designed to meet the need for highly accurate topographic information fundamental to the achievement and reliability of any project. Figure 4. The BB4, a professional UAV reality capture platform, is equipped with the AlphaUni 900/1300, a long-range LiDAR system. Related reading: CHCNAV Opens Dealership Opportunities to Mobile Mapping Professionals Marine Surveying The marine survey encompasses a wide range of activities that rely on GNSS technology, including seabed exploration, tidal and current estimation, and offshore monitoring through bathymetric and hydrographic surveys. The results of these activities are critical to marine construction and navigation. CHCNAV's versatile and robust USVs can be equipped with instruments such as a single or multibeam echo sounder, GNSS RTK receiver, and other sensors. This reduces survey time, improves work efficiency, and generates high-resolution data that consistently meet the stringent requirements of hydrographic survey projects. Figure 5. The Apache 3 USV, equipped with the GNSS IMU sensor and single beam echosounder, takes a bathymetric survey in the freezing lake water. Related reading: CHCNAV Opens Dealership Opportunities to Marine Survey Professionals We offer our dealers the flexibility to choose the products that best meet the needs of their potential customers in their region. We foster trust and work towards mutual growth and success through open and frequent communication. Discover new opportunities now and unlock the potential for growth in your region by becoming a CHCNAV distributor! ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,600 employees, today CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-02-02

Affordable Machine Control and Construction Solutions for SME

It is well known that many small and medium construction companies have a slow technology adoption rate; some rely on old technologies, believing they are saving money by avoiding investments into new infrastructure, and others are not tech-savvy enough (as they may think), so any innovation sounds frightening. Although both types of business owners can recognize the benefits of newer technologies, it is often difficult for technology departments in construction companies to have adequate budgets. CHCNAV’s latest product releases mark the start of a global one-stop-shop solution for small and mid-size contractors: affordable, easy-to-use machine control and construction solutions that give them access to previously inaccessible GNSS RTK technologies for better data consistency and high accuracy during the entire construction project, for the entire job site, from GNSS rovers with CAD field surveying software to GNSS machine control systems for excavators and motor graders. Establishing a GNSS positioning network, a cost-effective solution with optimal accuracy For nearly a decade, CHC Navigation has been deploying GNSS infrastructure around the world, ranging from a corrections service network at local sites, such as port automation, to regional coverage for construction engineering projects and national coverage for surveying applications. The combination of the CHCNAV’s server-based CPS RTK Network software, the P5 geodetic GNSS station, and the C220GR2 GNSS antenna (CORS), provides a powerful solution for any business for delivering ultimate, accurate, and uninterrupted positioning and navigation services. Figure 1. The CHCNAV’s GNSS antennas and geodetic stations installed in different countries to deliver uninterrupted positioning and navigation services. Compared to traditional triangulation/traverse networks, the GNSS RTK network geometry is less critical, and the accuracy is higher and more reliable. Stations can be installed in areas where they are required, in convenient locations rather than on remote hilltops. Users set up their field receivers where they will be operating, get reference station data online, and then calculate their positions. A network of this type can be almost any size and shape. Adding an RTK network to a construction site is a good idea because it corrects common errors in satellite navigation systems. This is done in real-time and on-site, which means that you never have to go out again for additional measurements or rework. Moreover, the RTK corrections network results in accuracy down to the centimeter, making measurements more reliable and accurate. This solution can be utilized for construction works such as: - site leveling and grading; - installation of utilities such as pipelines, power lines, and other cables, and the construction of buildings, their landscapes, and access roads; - staking out of road marks, pipelines, utilities, landscapes, fences, etc.; - site mapping; - deformation and monitoring (utility stability, ground movements, soil behavior, surrounding structures, etc.); - site exploration for new projects; - etc. GNSS RTK networks speed up operations in construction projects. They bring efficiency to construction sites, offering positioning accuracy and consistency of all surveying coordinates throughout the entire site and between different operators, regardless of the RTK rover’s brand. Enabling surveyors and all site foremen to own a survey-grade GNSS receiver CHCNAV also provides GNSS receivers, controllers, total stations, and software tools that result in position accuracy on any job site. These systems are designed to operate in the most demanding environments and applications and are structured to boost productivity to bring growth to your construction business in the short and long run. Figure 2: The i73+, compact GNSS base station and rover; the rugged professional RTK tablet from CHCNAV for GIS data collection, mapping, surveying, and more; and the Landstar 8, easy-to-use and feature-rich land surveying & mapping Android app. Construction companies looking for more accurate measurements can benefit from the i73+ compact GNSS receiver with a built-in UHF modem that achieves survey-grade, fixed RTK centimeter positioning, increasing the efficiency of point measurements by up to 20% and stakeout surveys by up to 30%. More accurate data means fewer errors during earthmoving applications, so less time is spent on finishing a project. Figure 3. The i83, a smart and versatile IMU-RTK receiver powered by 1408-channel GNSS and iStar technology. Similarly, the i83 smart and versatile IMU-RTK GNSS receiver is the perfect GNSS RTK survey tool with built-in connectivity modules such as wi-fi, Bluetooth, NFC, UHF and 4G modem, while the Landstar 8 land surveying and mapping App for Android makes onsite mapping and surveying projects quicker and more accessible due to its easy-to-use workflow manager and intuitive graphical interface integrating all surveying features for different applications, including construction surveying, control point measurement, native CAD project support, fast and accurate points, lines and surfaces stakeouts, road construction, GIS data acquisition, and more. Making machine control systems available to contractors, no matter the size of their business The CHCNAV's latest automatic 3D grade control system, the TG63, improves the quality and efficiency of grading operations. The system combines dual-GNSS satellite positioning with inertial navigation to ensure the ultimate accuracy, regardless of the machine's position. As a result, overall efficiency and productivity are increased significantly with the TG63, eliminating the need for manual staking while safety is always guaranteed for everyone involved. Figure 4: The TG63, a high-accuracy automatic GNSS/INS grading system, the complete and integrated solution for small and medium-sized construction businesses. The TG63 provides survey-grade data accuracy and reliability, without having to contract additional surveying capacity, as 3D design models and GNSS systems accurately position earthwork equipment. More than just robust GNSS technology, CHCNAV’s TG63 machine control solution is a highly productive tool that helps our clients complete their projects faster by bringing significant gains in productivity, accuracy, and speed to earthmoving applications. Bringing accuracy to your construction project today CHCNAV’s affordable, cutting-edge, easy-to-use, and complete machine control and construction solutions enable constructors to do their work faster, leading to better results, overall data consistency and less rework. These solutions are available everywhere on the planet and are guaranteed to bring your business growth in both the short and long term, providing you with professional surveying tools that add value to your machine control and construction tools. To conclude, rather than viewing new technology in a negative light, construction companies should see it as an opportunity to improve efficiency and productivity. By investing in technologies, leaders in the construction sector can position themselves for future growth and mitigate the risk of being left behind by competitors. Once implemented, technology can be leveraged to increase profit margins and reduce costs over time. CHC Navigation and its partners near you are open to discussing your operational challenges and how our solutions may help you address them. ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today, CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-01-30

CHC Navigation introduces the TG63, a 3D Grade Control System for motor graders

Shanghai, China – January 29, 2023 – CHC Navigation (CHCNAV) announced today that its CHCNAV TG63 Grade Control for Motor Graders is now available worldwide. With a tightly coupled dual-GNSS positioning system and inertial sensor, the TG63 provides reliable 3D positioning and heading to control the motor grader blade with the highest accuracy. “The TG 63 is an affordable, complete machine control solution that enables contractors to get their work done faster, ensuring better results, overall data consistency, and less rework,” said Wang Chong, Product Manager of CHCNAV’s Machine Control Division. “The TG63 boosts business in the short and long term, providing a professional grading control package that adds significant value to the grader fleets of contractors and engineering companies of all sizes." Figure 1. The TG63, a high-accuracy automatic GNSS/INS grading system, the complete and integrated solution for small and medium-sized construction businesses. Ensure ultimate accuracy within ±2 cm Dual-GNSS satellite positioning coupled with inertial navigation ensures the accuracy of the grader blade within ±2 cm, no matter the machine’s position. The GNSS sensor supports multiple correction sources, including RTK NTRIP and UHF base station, to match all operating conditions. The high-response valve module adjusts the blade position to maintain accurate grading. This ensures that the precision requirements of earthmoving operations are met at all times, and only the right quantity of material is moved. Intuitive GradeNav Software for quick operation GradeNav software runs on a 10.1" industrial color display for optimal readability in job site environments. It supports standard AutoCAD DXF design files to manage all typical grading operations, including surfaces, slopes, TINs, and road features. he software's highly intuitive user interface is developed to be easily accessible to less experienced machine operators to complete projects quickly and accurately. Robust design for extended durability in construction environments The TG63 is designed to withstand the harsh environment of construction sites. Dust and waterproof components, a rugged anti-glare touch screen, and a durable, high-response valve module ensure fast, reliable operation all year round. Availability CHCNAV TG63 is now available worldwide from our authorized dealers. ___ About CHC Navigation CHC Navigation (CHCNAV) creates innovative navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today, CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-01-29

CHC Navigation announces 2022 Annual Performance Estimate

Shanghai, China - January 17, 2023 - CHC Navigation | CHCNAV [Huace:300627.SZ] has announced the 2022 annual performance estimate covering the period from January 1, 2022 to December 31, 2022 and the performance estimate compared to the previous period. Executive Statement on 2022 Estimates During the reporting period, the company's revenue and net profit continued to grow at a sustained pace. In response to the uncertain macroeconomic environment, the company actively responded, adjusted the market expansion strategy, seized development opportunities in the precision agriculture and hydrological survey markets, resulting in substantial performance growth. Concurrently, the company recorded positive results in business areas such as robotics and autonomous driving, and geospatial information. In terms of regional dimensions, the company made significant progress in the development of international markets with a notable diversification of exported products. The company continued to increase its R&D investments, making continuous breakthroughs in algorithms, chips, LiDAR and other related domains, enhancing the competitiveness of its core technology and its risk resilience capabilities, and developing industry-leading products and solutions to establish a solid foundation for the company's growth. The company implemented an active cost-control and efficiency-increasing policy, continuously optimized its management and operating system, and improved operational efficiency to provide a sound basis for further and sustainable development. The company continued to implement Employee Stock Option Plans to reward core personnel performances and strengthen team motivation and cohesion. Disclaimer and Caution The 2022 Annual Performance Estimate made in this press release is only a preliminary estimate made by the Company's Finance Department and reflects the Company's position as of the date of this release. For final financial information, please refer to the 2022 Annual Report to be duly published by the Company. Investors are reminded to exercise caution in their investment decisions. About CHC Navigation CHC Navigation (CHCNAV) creates innovative navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today, CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/

2023-01-17

The CHCNAV's mobile mapping solutions enable efficient and affordable mining exploration in Indonesia

Effective and early surveying operations are crucial to the life cycle of mining projects. In the first phase of the mineral exploration process, primarily for coal, the effectiveness of survey operations will impact all 5 typical stages of the mining life cycle (exploration, discovery, development, production, and reclamation). During this stage, mining companies hire geologists to determine the composition of the earth's surface and study its geology to locate minerals. A mining geologist maps the locations of mineral deposits and uses aerial photographs, field maps, and geological studies to determine where and how much of a mineral is presented at the site. Today, a wide range of digital instrumentation is available to help coal companies accelerate the exploration and development of mines while also gaining a competitive edge. Unmanned aircraft systems and LiDAR scanners with industrial grade GNSS and high precision IMU are technologies that address the challenges of providing accurate geographic data, visualization, and 3D models of the earth's surface in a 3D digital format in minimum time. How did the P330 Pro VTOL UAV and the AlphaAir 450 LiDAR use help with the effective data collection to measure the volume of an open pit mine site in Indonesia? Figure 1. The set of CHCNAV’s solutions used during the mineral exploration project in Indonesia. The P330 Pro UAV allows small- and large-scale aerial surveys to be done with extreme data quality, cost, and time savings. It comes with a portable ground control station (GCS) for remote control and communication between the drone and the operator. Manual and automatic navigation modes are available. Vertical take-off and landing capabilities make it a particularly convenient drone to operate and transport. The AlphaAir 450, a lightweight and rugged system that integrates a high-performance LiDAR with an industrial-grade professional 26 MP camera and a high-precision inertial navigation system for quality data collection. In addition to the UAV and LiDAR, the i50 GNSS receiver and the pre/post-processing software provided with the AA450 were deployed. Global Mapper, a 3rd party software, was used to obtain the final calculation of the area measured in this project. What are the main benefits of the solution used in the project? 1. High efficiency and accuracy: cover more than 5 km² per mission with an error of less than 5 cm. 2. LiDAR accuracy in vegetated areas: enable survey of the actual ground surface, including structures that might be missed by other survey methods due to dense vegetation. 3. Easy to use: one-button operation and automatic flight. 4. Field crew safety: no need to transport the instrument to survey the entire area. 5. Fast results: the measurement of the large surface area can be done in one day. What precautions should be taken before surveying a site with a drone? When surveying a new area for mine development, it is necessary to pay attention to the following aspects: 1. Traffic: understanding the traffic situation in the area, roads, railroads, airports, etc., is needed to schedule equipment logistics during field operations properly. 2. Population: research the urban and rural communities living in the area, including their culture, customs, and language habits, to prevent any difficulties during the operation. 3. Geographical conditions: when the survey is conducted in mountainous areas with complex terrain types and features, knowledge of the terrain is essential to the mission. 4. Meteorological conditions: key parameters are wind, rain, fog, temperature, and air pressure. Historical statistics can indicate the number of operational months and days in the region of measurement, providing a basis for planning flight operations. What are the main steps involved in setting up a UAV mapping survey? Preparation is mainly related to setting up control points, designing the drone's flight path in the software, and setting up a GNSS base station. Figure 2. The survey team in Indonesia prepares the P330 Pro and AA450 LiDAR for the airborne survey. The survey route can be planned in advance in the office or directly in the field. When designing the route, the key parameters can be determined according to the requirements, and then the flight parameters are set in the software. For example, when designing the UAV trajectory, the speed is usually less than 18 m/s, the length of the trajectory is more than 1,000 m, and the relative height can be over 200 m. Figure 3. The survey route planning for the P330 Pro UAV. A GNSS base station must be installed before the data acquisition process to ensure accurate positioning. If there is an RTK correction source within the flight area, such as a local GNSS RTK network, it can be used to eliminate the need to install a local ground base station. When high accuracy is expected, it is recommended to limit the radius between the UAV and the base station to a maximum of 5 km. Figure 4: A high-precision i50 GNSS receiver is installed in the field. When everything is ready, and before each operational survey, a flight test of the UAV without payload is performed to confirm the performance of the flight. How to process the raw point cloud data collected by a LiDAR scanner? After the completion of the survey, the LiDAR system should remain stationary for 3 minutes. Afterward, the raw data can be downloaded and processed. Typically, a LiDAR system can obtain the following data in a single flight: 1. GNSS reference station data, the GNSS data obtained by the base station. 2. POS data, mainly includes GNSS data and IMU data from AA450. 3. Laser scanning data. 4. Images taken by the camera. The POS data is processed in the POS module of the CoPre, a powerful and highly configurable software package that can process all available GNSS and IMU data, providing high-accuracy combined navigation information, including position, velocity, and altitude. The next step involves the generation of point clouds by merging the raw laser data and photos with the POS data and then creating a LAS file based on the WGS84 coordinate system. Figures 5 and 6: Point cloud segments collected by P330 Pro and AA450 at the site and processed in the CoPre software. How to compute a cubature and determine site characteristics from an airborne LiDAR survey? For the volume calculation, Global Mapper (a third-party software) was used. The calculation process was based entirely on the imported point cloud data collected by the P330 Pro and AA450 and processed in the CHCNAV software. The site characteristics were determined, and the final data were obtained by generating a mesh model and using the volume calculation interface. Figure 7. Mining site volume calculation. In this project, airborne survey solutions were used to obtain the actual information about the entire area. The surface was mapped, and the total volume of the area was calculated. However, CHCNAV's mobile mapping solutions go far beyond this, as our LiDAR tools can effectively detect hidden surface geology and monitor ground subsidence. From exploration to exploitation of mineral resources, the acquisition of highly accurate topographic information is critical to the safety and success of any project; it will ultimately impact its overall operational efficiency. ___ About CHCNAV CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers' work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today, CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: https://www.chcnav.com/about-us/overview

2023-01-09