"Pole View 1": Add a pair of "Clairvoyance" to the drone

Weighing only 2.7 kilograms, it can “make a very wide kilometer” and recognize a variety of ecological information that is invisible to the human eye from the air... 2016 China International Industrial Fair University Exhibition Area, a team of Professor Liu Chun from the School of Surveying and Geographic Information of Tongji University lasted for 3 years The self-developed scientific and technological innovations - "Pole Vision 1" is a wonderful show.

"Through many innovative designs and developments in hardware and software, we have achieved breakthroughs in high-precision 'multispectral' low-altitude remote sensing observations on drones ." Liu Chun introduced that "Pole View 1" can be mounted on Four-axis, six-axis, fixed-wing and other unmanned aerial vehicles can complete the information collection of 2000 mu of ground space in one hour flight, with high data accuracy and easy customization. How does this “little guy” who does not care much serve urban construction, agriculture, forestry, environmental protection and many other industries?

Small and lightweight, it can be “easy to catch” drones

　　 In modern life, all kinds of ecological data are closely related to people's daily life, such as changes in vegetation cover in urban areas, waste seepage in large landfills, microbes and oxygen in waters, etc. These ecological data must not only be realized in A wide range of rapid acquisitions, but also to achieve refined quantitative inversion, and by using a drone platform, the use of multi-spectral for low-altitude remote sensing observation is an ideal choice.

At present, the market still lacks mature UAV airborne multi-spectral imaging system. The existing products have weaknesses such as small amplitude, single spectrum, long exposure time and insufficient endurance time, and directly lead to the flying of drones at high speed. A series of problems arise, such as the image with severe image shift, low resolution optical image can not support the observation accuracy of the ground centimeter level, lack of sufficient spectral information and can not achieve the identification of ecological information.

Tongji University launched the "Polar Vision Narrowband Multispectral Array Aerial Camera", which is called "Pole Vision 1". The filter coating adopts the scientific research results of Tongji University, which can cut off the wavelength more accurately and increase the filter rate to 98. %, with high spatial resolution, high spectral resolution, large format, high-speed exposure and other characteristics, to make up for the shortcomings of existing products, can effectively form the acquisition capability of multi-class remote sensing image products with centimeter-level accuracy.

The "Pole Vision 1" array multi-filter structure design ensures the miniaturization and weight reduction of the overall system, making it easy to be carried by most professional-grade drones without sacrificing work time and power redundancy. At present, the core technology of this product has applied for a number of national invention patents, and some have been authorized.

Free customization, efficient and intelligent acquisition "no matter where you are"

　 The freely customized design idea makes "Pole View 1" more distinctive. The spectral characteristics of different vegetation, crops, lakes and rivers are ever-changing. The number of bands and observation wavelengths of traditional multi-spectral cameras are fixed. These characteristics cannot be observed at the same time, and the diversity requirements of users cannot be met. The "Pole Vision 1" can flexibly adjust the number of imaging units and the corresponding spectral filters according to the user's application purpose and task quantity, so as to realize a variety of system observations and meet various application requirements. the goal of.

“Pole Vision 1” ensures the accuracy of the data through the actual calibration test of the professional team in various parameter environments, with the targeted refined radiation correction model. In addition, "Pole View 1" also has a full-chain intelligent data processing system, which can intelligently plan the path, and simply select the acquisition area to automatically plan and optimize the acquisition path. Efficient information collection is done wherever you are.

Successful application, helping "good friends" for drone applications

　 Thanks to its excellent remote sensing performance and mature remote sensing data processing technology, “Ping Vision 1” has been used in many fields such as the prediction of agricultural conditions in fine agriculture, the location of rare forest species, and the identification of urban illegal construction targets. Play a huge role.

Grafting Shanghai Tongfan Survey Engineering Technology Co., Ltd., Beijing Jiweixiangtu High-tech Co., Ltd. and other high-tech enterprises to promote the industry's resources, help Guangdong Danxia Mountain to carry out the rare vegetation "Danxia Wutong" strain statistics, the recognition success rate is nearly 80%; In the investigation of the intangible cultural heritage of Baojiatun in Guizhou, the data obtained by “Pole Vision No. 1” assisted in the spatial element extraction and spatial distribution analysis of ancient architectural communities and ancient landscape environments. Recently, “Pole Vision 1” was more involved in the environmental survey of power transmission lines. In the demonstration test conducted in Suining, Anhui, the recognition rate of the types of ground objects around the transmission line was as high as 92%.

"We believe that by continuing to improve and improve, this product will help the drone field to achieve more profound development and provide better service for the 'big data' era." Liu Chun said.