Domestic unmanned navigation verification aircraft appeared on Beijing Technology Week, and airport navigation has "self -jurisdiction"

At the just -concluded 2022 Beijing Science and Technology Week, a "unmanned navigation verification machine" was particularly noticeable. The reporter will take you close to the secret behind the domestic unmanned navigation verification machine.

Article/Reporter Zhao Tianyu Editor/Chen Yongjie

New Media Editor/Fang Yongzhen

In recent years, major breakthroughs have been made in the field of aviation navigation. While mastering more independent intellectual property rights, we are working hard to make core technologies subject to people's past.

At the scene of Beijing Science and Technology Week in 2022, the "unmanned navigation verification machine" from Beijing Yunheng Technology Research Institute Co., Ltd. (hereinafter referred to as the "Yunheng Research Institute") attracted the attention of many public. The reporter learned that the unmanned navigation verification machine was equipped with the first independent and controllable national production navigation verification system jointly developed by Yunheng Research Institute and the Beijing Institute of Science and Technology. Another major breakthrough.

▲ The "Unmanned Navigation Veyron" of Yunheng Research Institute appeared in Beijing Science and Technology Week in 2022 (Figure Supply/Yunheng Research Institute)

Navigation verification: autonomous, controllable, safe, reliable, and important

As we all know, the aircraft is one of the most automated transportation. During the take -off and landing process, the aircraft needs to pass the signal guidance of radio, communication, navigation and other radio equipment in order to complete autonomous driving at the stage and approach.

If these signals have deviations, they may cause catastrophic consequences. In order to ensure the normal work of the above -mentioned communication navigation equipment, real -time testing and calibration of it must be performed, thereby led to the concept of navigation verification and navigation verification system.

The concept of navigation verification has taken shape as early as the 1930s. It was originally called a route inspection. The main task was to check the elevation and brightness of the target of the visual flight (lamp) in the air. With the continuous development of navigation facilities and airborne equipment, the coverage of navigation verification is continuously enriched, and procedures and standards have become increasingly perfect.

"Now we are inseparable from navigation in our lives and driving. Navigation geographical information is not static. It requires dynamic renewal and test calibration. This is also the same in the sky. . "Liu Tong, director of the Beijing Computing Center, who participated in the development of the navigation verification system, made a popular metaphor for the navigation verification.

▲ Unmanned navigation verification machine (Figure Supply/Yunheng Research Institute)

But an embarrassing reality is that this system has long been monopolized by developed countries in Europe and the United States for a long time. For example, Airfield in the United States and Germany Aerodata have an absolute advantage in the industry.

Can the navigation verification system be produced nationwide? Can you establish a domestic navigation verification industry chain? In 2017, with the strong support of the Beijing Municipal Science and Technology Commission, Beijing Capital Science and Technology Development Group, the North Academy of Sciences, and the Beijing Computing Center, the Yunheng Research Institute challenged this field with high -level technology independence and self -reliance.

Yunheng Research Institute is a mixed ownership enterprise of state -owned asset -owned shares. It is a national -level specialized "Little Giant" enterprise. Yunheng Research Institute is committed to applying communication navigation, simulation, and data mining technologies to provide the most suitable technologies and services for the military and the government.

The first national production navigation verification system came out

The development of the navigation verification system is not easy to develop. As a high -end equipment of technology and knowledge, it involves many high -precision fields such as aviation navigation, big data, computer software, and geographical information. Requirements.

For example, in terms of data, Liu Tong said that with the implementation of navigation verification tasks, a large number of check -up information flow and data flow began to gather. The system not only detects the calibration platform, but also becomes a data platform. It requires professional HPC theory and method support.

▲ Researchers test preparation for unmanned navigation verification machines (Figure Supply/Yunheng Research Institute)

On March 29, 2021, the unmanned navigation verification machine jointly developed by Yunheng Research Institute and the Beijing Yanqi Lake Applied Mathematics Research Institute successfully took the first flight; on December 28, 2021, it was applied to Pingyuan Airport and other navigation stations. A transport aircraft installed navigation verification system successfully flew for the first time.

This indicates that the first self -controlled national production navigation verification system already has the ability to cover the entire territory and the whole scene. In the real sense, "autonomous controlled, safe and reliable", breaking the nearly 100 years of developed countries in Europe and the United States for nearly a century Industry monopoly has also completely changed the global industrial structure in the field of navigation verification.

Speaking of this domestic system, Wei Bo, deputy general manager of Yunheng Research Institute, said that this national production navigation verification system strictly develops in accordance with relevant national standards. Software code; independently overcome 410 core algorithms, which have been constructed, simulated simulation verification, system joint testing, and external test flight through mathematical model construction, simulation simulation verification, system joint testing and external test flight. The quality is reliable.

"This is under the support and promotion of military -civilian policy policies. In the field of aviation navigation, China has replaced another hard bone that has replaced them. The navigation verification system is dominated by the iconic results of military -civilian integration." Weibo Say.

The reporter learned that in March of this year, Yunheng Research Institute and the Beijing Computing Center jointly launched a new technical research to jointly carry out the development of the ground support system for navigation verification. After the completion of the system in the future, the intelligent navigation verification system that will be integrated with the open space and the entire territory will be achieved, forming a sustainable development of an innovative and industrial ecology.

Aviation equipment localized acceleration

Behind the independent research and development of the navigation verification system, the mapping is the acceleration of the localization process of the aviation industry equipment.

In the past, due to the long -term supply of manufacturers such as Boeing and Airbus, systems such as aviation engines and airborne equipment were led by European and American suppliers, and they generally have more than half of international market share. This also objectively causes difficulties such as high technical barriers, long R & D cycle, large capital investment, and difficulty in aviation and evidence collection, which leads to the slow process of domesticization.

▲ Scientific researchers debug the unmanned navigation verification machine (Photo Supply/Yunheng Research Institute)

However, with the formal commercial commercial commercial production of C919 and the upgrading of domestic equipment manufacturing industries, the Chinese aviation industry has ushered in a good opportunity for leapfrog development, and more and more aviation industry equipment has achieved domestic replacement.

In 2017, the first set of navigation core equipment of the country's production ground entered the civil aviation market, realizing the comprehensive domestic application of civil aviation communication navigation monitoring core equipment. Compared with communication and surveillance equipment, navigation equipment directly provides guidance signals for the aircraft during the flight phase, and is the most closely related ground device that is close to flight safety.

In 2018, the domestic ADS-B localization rate reached 100%. The ADS-B is also called the automatic related surveillance of the broadcast system, which can automatically obtain parameters from the relevant airborne equipment and information such as the location, height, speed, direction, and identification number of other planes or ground stations. Core system for monitoring.

▲ Scientific researchers inspect the unmanned navigation verification machine (Figure/Yunheng Research Institute)

The flight simulation machine is a necessary device to train civil aviation pilots, which can copy the situation in the aircraft cabin, allowing the pilot to experience the real driving environment to the greatest extent. In the past, flight simulation machines have been monopolized by small companies in developed countries such as Canada, Europe.

In 2020, the first domestic A320 Neo/CEO full -action flight simulation machine with complete independent intellectual property rights came out, filling the domestic design and manufacturing gap in this field. In January 2022, the domestic Boeing 737 MAX full -action flight simulatory machine passed the D -Class certification, marking the increasing "China Intelligent Manufacturing" in this field to appear on the stage.

Industry insiders pointed out that the contemporary aviation industry is a high -tech industry with intensive knowledge and technology -intensive military -civilian integration. Promoting the localization of core equipment can not only promote the high -quality development of the aviation industry, but also prevent the risk of "card neck" and ensure the security of the industrial chain and supply chain.

However, it is worth noting that compared with Airbus suppliers, European companies accounted for 68%, Boeing suppliers accounted for 75%of American companies, and suppliers of domestic civilian passenger aircraft manufacturers still hovered around 50%, and there are more Great enhancement space.

"This has put forward higher requirements for domestic aviation equipment manufacturing companies including Yunheng Research Institute and Beijing Computing Center, so that the scientific and technological achievements are truly benefited to the people, and there is still a long job to complete." Weibo express.

Produced: Popular Science Central Kitchen

Producer: Beijing Science and Technology News | Beike Media

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