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From the moon to Mars, look at the power of Hong Kong in China’s aerospace and the spirit of Lion Rock in the starry sky


The Hong Kong spirit, also known as the Lion Rock spirit, is a spirit of hard work, hard work, pioneering spirit, flexibility, and self-improvement. In China’s aerospace industry, there is also the admirable spirit of Lion Rock. Standing at the historical node of the party’s centuries, the “Spirit of the Times” event officially kicked off. A group of “cosmic missions” composed of academicians of the Chinese Academy of Engineering, commanders and chief designers of various national aerospace projects entered the Hong Kong campus. Share the fruitful achievements and precious spirit of China’s aerospace engineering with young students. Let’s experience the power of Hong Kong in China’s aerospace industry with the Narada Institute of Big Data. Hong Kong Polytechnic University sets up “Deep Space Exploration Research Center” Hong Kong scientists are indispensable in China’s aerospace industry. For example, in recent years, the Hong Kong Polytechnic University has actively participated in China’s aerospace industry. In May 2021, the Hong Kong Polytechnic University formally established the “Deep Space Exploration Research Center”, bringing together experts in different disciplines and fields such as geology, civil engineering, and physics to conduct research and development of aerospace technology and contribute to the country with scientific research. According to Rong Qiliang, an academician of the Hong Kong Academy of Engineering Sciences and a professor at the Hong Kong Polytechnic University, the center’s work mainly includes deep space exploration instrument manufacturing and deep space exploration theory research. In addition, the teams of Professor Rong Qiliang and Professor Wu Bo of the Hong Kong Polytechnic are also Hong Kong’s “old friends” in my country’s major scientific projects of deep space exploration, and they are the only team of scientists in Hong Kong participating in the national deep space exploration. The Chang’e 3, 4, and 5 national lunar exploration projects and the “Tianwen No. 1” Mars exploration mission all have their contributions. Rong Qiliang team R & D “Mars Camera”, Participate in moon sampling Among them, Professor Rong Qiliang’s team has developed a sophisticated space instrument, the “Fire Fall Monitoring Camera” (“Mars Camera”), which is mounted on the outer platform of the lander to monitor the landing situation, the surrounding environment of Mars, and the landing. The operation of the post-Mars rover Zhurong, including the opening of the solar wing and the condition of the antenna. Relevant data is crucial for mastering whether the rover can successfully patrol the surface of Mars. Professor Rong’s team also participated in the Chang’e 3, 4 and 5 national lunar exploration projects. The camera pointing system developed to help the control center direct the activities of the lunar rover. The surface sampler and the primary packaging system for sealing lunar soil samples helped Chang’e-5 successfully obtain lunar samples and conduct preliminary storage. How difficult is it to sample on the moon? In an interview with Southern Metropolis Daily, Rong Qiliang revealed that The use of a fully automated robotic arm to collect such a large number of lunar samples is unprecedented. “Changwu” has two moon table samplers to deal with lunar soil of different textures. After landing on the moon, the sampling device used for moon table samples a total of 12 times, of which the third time was too many samples, the sampler smoothly and automatically Chiseled away a part. How does the robotic arm perform sampling? Rong Qiliang reproduced the process at the time to reporters from Nandu: “First, after receiving the instruction, the primary packaging system opens the sample tank, and the robotic arm lowers the sampler to sample. The shovel-shaped sampler (A) is used to collect the loose moon. The sample is designed so that it can vibrate when closed, throw away excess debris, and can also dig out large pieces of lunar soil. The sampler (B) can drill into the lunar soil and grab the viscous sample by opening the toothed metal flap. Each sampler is equipped with a close-in camera. The sampling process is relatively slow at the beginning, and the staff later speeds up when it is used smoothly. The whole process was originally expected to last more than 30 hours, but it was completed early and took less than 20 hours. The third sampling was over, and our sampler smoothly chipped out the extra part. ” Wu Bo team Analyze the topography of Mars and choose the landing site From 2017 to 2020, another professor at the Hong Kong Polytechnic University, Wu Bo, was invited by the China Academy of Space Technology to lead a team to conduct a global analysis and evaluation of Mars, and selected three locations in the Amazon Plain, Chris Plain, and Utopia Plain. Through detailed analysis of topography and geomorphic features, the southern area of ​​the Utopia Plain, the largest impact basin in the northern hemisphere of Mars, was selected as the target landing area for the “Tianwen-1”. In order to help “Tianwen-1” land and patrol safely on Mars, Wu Bo and his team have also developed an “artificial intelligence-based method for extracting impact craters and rocks.” Within a month and a half, it analyzed 670,000 craters, more than 2 million rocks, and hundreds of volcanic cones distributed in the target landing zone, with an accuracy rate of 85%. In an interview, Professor Wu Bo revealed the whole process: After “Tianwen-1” entered the orbit of Mars, it took high-resolution images of the selected target landing area. Since the team obtained the relevant images in March, they have been processing them intensively, and finally successfully searched for several landing ellipses for the “Tianwen No. 1” mission team to make the final selection. He admitted that the process of completing the task was stressful and difficult. Especially in the past two months, from mid-March to early May, the team needed to process a large amount of high-resolution images of data, and to analyze the millions of rocks and tens of thousands of rocks in the target landing area through three-dimensional modeling. Thousands of impact craters and other geomorphic features that may affect landing safety. “Pressure is everywhere, but I am gratified that every member of our team is able to go all out. Everyone has a sense of honor and mission, and actively contributes their own strength.” Professor Wu Bo said. It is worth mentioning that Hong Kong youths are also increasingly participating in the aerospace industry of the motherland. In 2016, the Shenzhou 11 manned spacecraft was successfully launched. The astronauts conducted three experimental projects designed by Hong Kong middle school students on the Tiangong-2 in the space laboratory-“water film reaction”, “space sericulture” and “double pendulum experiment”, all of which were successful. On the morning of June 23, the first lecture of “Aerospace Scientists Entering Campus” and the Public Lecture of Contemporary Distinguished Chinese Scientists was held at the Hong Kong Polytechnic University. Academician Qi Fazhi, academician of the Chinese Academy of Engineering and the first chief designer of the Shenzhou spacecraft, specifically mentioned: “ We warmly and sincerely welcome young people from Hong Kong to participate in the aerospace industry of the motherland! “ Produced by: Nandu Big Data Research Institute Coordinator: Zou Ying Data collection and analysis: Chen Zeran Drawing: Li Bei Data source: China National Space Administration, Hong Kong Polytechnic University, public media reports, etc. Data statistics deadline: June 23, 2021