Expressway Tianjin Binhai

3D modelling in the preconstruction of a 35 KM expressway

YUNEEC Surveying and Mapping Service team undertook the UAV BIM task required to produce 3D modelling in the preconstruction of a 35KM expressway in Tianjin Binhai New District.

In the mid-November of 2018, YUNEEC undertook the project located in Tianjin, Dagang District, which is adjacent to the Bohai Sea. The winter monsoon in Tianjin is usually heavy at 5-7 winds, and the temperature is very low in December which indicates snow season is approaching. And, as many projects were under construction in this area, at the same time, the aerial survey of real estate in the construction area should be completed as soon as possible, so the project construction schedule is tight under harsh environment. The types of landforms are complex, including highways, provincial and municipal highways, viaducts, low-rise buildings, private houses, chemical plants, gas stations, fish ponds, and gullies. The entire project has extremely high requirements on the wind resistance and stability of the drone.

Concerning on the site conditions and project requirements, the YUNEEC service team decided to use the H520 to complete the project.
First of all, built-in a six-rotor power system, H520 enjoys more stability in flight and stronger wind resistance. When used in the field, wind resistance of H520 was verified again. The five-axis safety return design ensures safe flight. Although equipped with a 6-axis high-power east-west system, endurance performance of H520 is still excellent, with up to 28 minutes. The low temperature and the heavy wind have not brought much burden to the H520.

The E90 gimbal camera utilizes one-inch CMOS imager and 23mm equivalent focal lens, capable of capturing images in 20MP resolution. With a 10 bit video decoding system, the compression efficiency is greatly improved while maintaining high image quality. The E90’s excellent performance guarantees its high quality of mapping results.

The excellent mission planning software of Yuneec is capable to realize the dual mission planning of handheld ground station and PC. It is much more convenient and efficient to upload the missions to the ground station through PC end. The measurement area can be divided in large area, and the single flight mission can be paused, interrupted, saved, and continued conveniently.

Boast with the unique and independent video transmission system, control signal, and low-latency communication design, Yuneec’s drone enjoys excellent anti-interference ability, which makes it more advantageous to manually fly in some complicated areas. What you see is what you get!

Equipped with professional Ground station and integrated 720P HD touch screen, missions can be deployed in a very short time and will not be disturbed by mobile phone information without extra connection, which makes the flight more focused.

The design of orange-colored airframe adds not only fashionable feature, but also high recognition which assists pilot to quickly locate the position of the H520 and manually intervene in case of emergency especially in dangerous areas, densely populated areas and complicated areas.

It is the excellent performance of H520 that ensures successful completion of this project.