With the advantages of fast, efficient, flexible and low cost, UAV tilt photography technology is gradually subverting the traditional surveying and mapping operation mode, and has become a "new favorite" in the surveying and mapping industry. The application of tilt photography technology to UAV is actually making a three-dimensional model, which is more realistic, more intuitive and more realistic.

01. real estate integration

In the process of real estate integration, the traditional measurement technology is already overburdened, hidden points are difficult to measure, the control points of graph root are not easy to save, the accumulated error of measurement is large, the efficiency is low, and the repeated work is frequent; The introduction of UAV photogrammetry and 3D laser scanning technology has made the above problems solved well, and the measurement task is completed with high efficiency, high precision and simple.

02. reactor measurement

At present, the measurement of the reactor body mainly depends on the total station, coal pan meter, GPS and other measuring instruments to measure the reactor. Compared with the previous measurement, the measurement methods have made great progress. But now there are more efficient and high-precision measurement methods: using UAV to map and model. UAV can preset the route, automatically collect data in the operation area, and then import the data into the system. One key can generate point cloud and three-dimensional model data, and then measure the space distance and volume based on it, or make the modeling measurement of irregular stacking area such as slope, which provides accurate numerical reference for engineering construction planning and production operation.

03. tunnel and pipeline inspection

Traditional subway, railway and automobile tunnel detection requires inspectors to go deep into the tunnel, and manually check whether there is any crack or water leakage and other abnormal conditions, and ensure that there is no problem with the tunnel structure. The UAV equipped with high-definition camera and laser radar can collect high-precision image data in the tunnel and generate 3D model for any time to access and view. This can not only provide higher inspection accuracy, but also allow engineers more time to focus on the analysis of collected data, and quickly propose the countermeasures to be taken.

04. Expressway inspection

For the maintenance and reconstruction of highway such large-scale traffic infrastructure, the first step is to obtain clear image data of all road conditions. UAV mapping system can integrate UAV and 3D modeling software for surveying and mapping, cooperate with powerful workstation, and at the same time, it can also accurately evaluate the project quantity of road reconstruction through application software, and simulate the scene effect and possible surrounding environment impact after the project transformation, It provides strong support for road reconstruction and road planning of highway department.

05. bridge monitoring

Manual detection is not only inefficient, difficult, high risk coefficient, but also the detection precision is not enough. The application of UAV technology will solve this problem to a great extent. UAV can complete the shooting and evidence collection of the structural surface of the bridge bottom, column and beam by means of camera, laser radar and other control equipment, and at the same time, it can also conduct the three-dimensional modeling of the whole bridge. The external structure of the bridge can be calculated by the model, which can be used for professionals to analyze the bridge state and find dangerous situations, which can greatly reduce the working intensity of the bridge maintenance personnel, Improve the efficiency of bridge inspection and maintenance.

06. cultural relics protection

Cultural relics are relics left by human beings in the process of historical development. It is a precious historical and cultural heritage of mankind. In the field of cultural relics protection, 3D scanning technology is more efficient and accurate than traditional manual measurement, and the non-contact specific technology will not cause cultural relics damage. For large ancient villages, we can use UAV system to quickly complete large-scale data acquisition; UAV can collect image data of historic sites with lidar, acquire the point cloud of cultural relics for accurate reconstruction, establish a physical 3D or model database, preserve the original type data and spatial relations of cultural relics and other important resources, realize the scientific, high-precision and permanent preservation of endangered cultural relics resources, and then establish VR digital museum which can be viewed online.

07. archaeological restoration

UAV 3D modeling technology can also be used for archaeological and cultural relics restoration. 3D scanning technology uses surface data acquisition instead of traditional point data collection. Through high-speed laser measurement method, the 3D information of objects can be obtained quickly, accurately and comprehensively, and the real 3D information of the document and objects can be recorded and 3D model is established, The traditional manual measurement is transformed into the high-precision measurement of point cloud data by indoor computer, which has non-contact and avoids the damage to cultural relics.

08. land right confirmation

The traditional land right determination survey work is generally to measure the topographic map by the way of ground engineering survey or aerial survey topographic map of traditional manned aircraft. Compared with the traditional method, aerial photogrammetry with UAV has obvious advantages, such as low cost, convenient execution, high automation, high efficiency and high accuracy. Therefore, in the rural collective land registration and certification work, it is a feasible way to obtain the basic topographic map data by UAV aerial photography modeling.

09. real estate registration

UAV as an auxiliary means, improves the efficiency of the real estate registration personnel on-site investigation and audit, and saves a lot of funds. The application of UAV surveying and mapping technology can make the registration right registration survey more accurate, to a large extent, avoid the registration errors and risks. And the GIS system and data established by UAV mapping can be directly used for real estate registration, which greatly saves human, material and financial resources in the registration of real estate.

After long-term research and development, Huafei technology currently has a number of UAV platforms in the surveying and mapping industry, including electric multi rotors, oil electric hybrid multi rotors and fixed wings. The maximum takeoff weight is 18-140kg, the maximum space remaining time is 1h-8h, and the task load weight is 1kg-30kg. It can be equipped with tilt camera, positive camera, multispectral camera, laser radar, magnetic detector and other aerial surveying and mapping instruments.