Thirty years in the thirty -year -old thorns to build dreams of the sky palace Yao Sky

As an important force in my country's manned aerospace engineering task, Xi'an Branch of the Fifth Hospital of Aerospace Technology Group (hereinafter referred to as Xi'an Branch) began to devote the manned space project from Shenzhou 1 to undertake the system in my country's previous manned space project tasks Controller, multi -functional monitor, instrument software, antenna network, and relative terminal development tasks. In the space station task currently being built, Xi'an Branch is the space station Tianhe core compartment, Wen Tian experimental cabin, Mengtian experimental cabin, Shenzhou series manned spacecraft, Tianzhou series freight ships all developed partitions, antenna networks, and instruments Computer application software. In June 2022, the manned aerospace engineering team of the Xi'an Branch won the honorary title of "National Relief Young Youth" in the Central Committee of the Communist Youth League. From the launch of my country's manned aerospace project in 1992 to 2022, in 30 years, the manned aerospace task team of Xi'an Branch has always practiced "special hardships, special fighting, special can be related, and special dedication". " The spirit of manned aerospace has contributed to the successful implementation of the manned space project task in my country.

Photo by Liu Xuejie Liu Xuejie

Photo by Guo Liping, a manned development team

"Dawn" of manned flying sky

At the beginning of the establishment of the Fifth Hospital of Aerospace Science and Technology Group, Qian Xuesen, the first dean, put forward suggestions on research on the development of manned space -on development. The five hospitals have formed corresponding institutions to carry out pre -research of system schemes and manned aerospace technology. The predecessor 504 of the Xi'an Branch was one of the earliest research units to participate in this work.

At the beginning of 1968, 504 leaders established the overall group and corresponding extension groups with the older generation of experts Ju Dehang, Pan Huajiang, Li Xiaochun, Zou Ronghua and other dawn spacecraft radio systems. In order to seek the feasibility basis for the feasibility of the global communication scheme of the dawn spacecraft, 504 also developed other equipment.

Because the manned space engineering was a large structure and complex technical system engineering, at that time, my country's economic foundation was weak, the level of industrial manufacturing and related crafts was low, and the dawn spacecraft mission was finally sealed. However, at that time, many research work had achieved a lot of results, and preliminary preliminary preparations for the implementation of the manned aerospace project in my country.

Step by step, the camp has never been absent

Starting from the mission of Shenzhou -1 spacecraft, the Xi'an Branch has successively undertaken the development tasks of system controllers and multi -functional monitors and antenna networks, and then began to undertake the development task of the trial terminal from Shenzhou 6. From the "Ship Secretary" instrument controller application software to the "signal hub" antenna network to the relay terminal of the establishment of "Space Sky Road", Xi'an Branch has never been absent.

Perseverance "Secretary of the Boat". In 1992, the manned space project was officially approved. The first task received by the Xi'an Branch Human Aerospace Mission Team was to develop the "Ship Secretary" that developed a spacecraft -system controller and multi -function display. Their combination will establish a human -machine interface for astronauts interact with spacecraft. Through unmanned verification, it will directly assist astronauts to complete space tests, outlets, and docking space missions during the final manned flight. 2. A comprehensive electronic application system involved in multiple disciplines. Xi'an Branch has begun to embark on the road to the development of spacecraft from the development of spacecraft instrument equipment.

Figures of Xi'an Branch of the Fifth Hospital of Early System Control and Multi -Functional Display Site

The system controller is an important component of manned aerospace multifunctional intelligent instrument system. It is an important device that connects multiple sub -systems. The time for the first principle of the prototype was only 4 months, and a group of young designers began to work overtime. In order to find the best solution, they have designed multiple versions of software systems; in order to achieve high reliability, they continue to conduct comparative tests; in order to meet the real -time nature of data and human -machine effects, two rounds of product iteration upgrades in a short time.

From 1996 to 1999, Xi'an Branch specially developed software switching software that can monitor the performance instrument's performance for Shenzhou -1 spacecraft, and operated in a multi -function display. Tests by the video images returned to the ground and the device after returning to the ground show that the system controller and multi -functional display on the Shenzhou -1 test spacecraft work normally, and the first flight has achieved a complete success. Subsequently, from Shenzhou 1 to Shenzhou IV, Xi'an Branch developed a spacecraft instrument and lighting system, measurement and control and communication system, and data transmission system for the Shenzhou spacecraft, all products in the data transmission system, all working normally.

In 2003, the Shenzhou -5 spacecraft wanted to achieve the first manned flight. The "Ship Secretary" developed by Xi'an Branch must truly perform the task with the astronauts. The entire spacecraft system attaches great importance to the safety of the space officer during the mission, and puts forward almost harsh requirements for the safety and reliability of the product. In order to ensure the reliability of the system controller and multi -function display software, each data displayed should be accurate. In order to provide a more friendly man -machine interface to the astronauts, the designers overcome the influence of the SARS epidemic, facing the difficulties, and carefully optimized the software testing and joint trial work in accordance with more stricter requirements.

From the first manned Shenzhou 5 spacecraft, to the Shenzhou VII from one person to a three -person, to Tiangong -1 and Tiangong No. 2, including software update, Chinese character input method, independent emergency return, etc. Key technologies continue to "add" ... Each time, they not only successfully completed the task, but also accumulated the development experience of large -capacity information processing, embedded display, and software renewal of software. Diligent to build a "signal hub". In early 1994, Xi'an Branch received the development technical requirements of three key projects of Shenzhou No. 1 spacecraft. One of these three key projects was to return to the antenna network in the cabin.

The antenna network is a key product that connects to the responding machine and antenna in the measurement and control and communication sub -system. It is a small signal forwarder on the spacecraft. Small, but the principal, it is responsible for a bridge between the signal between the receiver, the transmitter, and the measurement and control antenna. The bridge is responsible for the delivery of the destination of the valid signal to the destination. When the Tianyan experimental compartment receives the communication signal or measurement and control instruction signal on the ground, the antenna network will classify it and transmit it to the answer machine. Conversely, the various types of signals from different channels of the responding machine will also be sent to the ground antenna, and the ground will be sent to the ground through the antenna.

The difficulty of developing antenna network lies in the special application of the spacecraft. First of all, the system's requirements for the equipment in the cabin are very harsh. Secondly, it is required that the network can choose to connect towards the antenna above the ground after landing in the spacecraft after landing, so as to effectively transfer signals such as communication, help, and positioning. For this, the developers of Xi'an Branch determined the two -time design scheme of the media, which reduced the volume to 1/4 of the conventional product structure. In order to make this new technology a reliable guarantee for astronauts on the spacecraft, the antenna network is accompanied by countless times of design and verification, until the results fully meet the requirements.

With the advancement of manned space engineering tasks, the development team of Xi'an Branch continued to improve the performance of the antenna to ensure the need for tasks. Starting from the Shenzhou No. 1 mission, including the Shenzhou series manned spacecraft, the Tianzhou series freight ships and the current space station task, Xi'an Branch has undertaken the development task of all antenna networks in the measurement and control and communication sub -system.

Be lean to seek fine casting. From Shenzhou No. 1 to Shenzhou V, the measurement and control of Shenzhou spacecraft is mainly performed through ground measurement and control stations. When the Shenzhou spacecraft flew out of the border, the ground could not grasp the flight status of the spacecraft and the working status of the astronauts in real time, and the safety and experience of astronauts could not be satisfied. At the end of 2003, the manned aerospace project generally proposed that the data transmission system needs to be added to the new Shenzhou 6 spacecraft. This brand -new equipment development task has once again fell on Xi'an Branch.

In order to ensure that the spacecraft flying overseas, the development team can also provide a call function and the ground call function to overcome many difficulties. Through the cooperation of the Tongli, the first set of positive hard software products of the Shenzhou 6 and the antenna equipment finally finally in 2005 in 2005 In October, the test task was completed with the spacecraft. In August 2008, the second set of data transmission systems developed by Xi'an Branch also delivered the Shenzhou VII to complete the matching test with the cabin. The equipment of the device is normal, the data of the transmission cabin is correct, and it passes smoothly in the rail test.

On April 25, 2008, my country's first relay satellite Tianchain No. 1 satellite was successfully launched, and Xi'an Branch undertook the development tasks of all effective loads. At the end of September 2008, the Vulcan -Vita Vulcani terminal developed by Xi'an Branch officially debuted, and achieved "space shaking hands" with Skyli -1 satellite, creating a new situation of Tianji testing and control in my country. The relay user terminal developed by Xi'an Branch is my country's first Tianjin -control communication system, and it is also the first generation of Tianji test control products of Xi'an Branch. The performance indicators have reached the international advanced level. This also marks the country that has become one of the few key technologies in the world's key technologies in the world, and has promoted the pace of the development and implementation of my country's aircraft Tianji testing and communication system.

Since then, the manned aerospace mission team of Xi'an Branch has been equipped with a trunual terminal system for each spacecraft and every target aircraft and space station cabin of the manned spaceflight and promoted the product upgrade to achieve multiple technological leaps. From Tiandi Call to Aerospace Management to teach, from the connection and docking tasks to the execution of Tianzhou -1 "Space refules" task and the space staff out of the cabin. A "sky road" between the ground and satellite, satellite and spacecraft.

Photo by Xue Fei, a manned development team

Building a dream Tiangong shining the sky

During the construction mission stage of the space station, the project task mainly includes the space station Tianhe core compartment, the questioning of the day and the Dream Tiantian experimental cabin, and the manned spacecraft and freight ships.

On April 29, 2021, the space station Tianhe core compartment was successfully launched. On September 20th, Tianzhou -3 freight ship was successfully launched and completed with the space station Tian and the core compartment. On October 15th, the three astronauts of Zhai Zhigang, Wang Yaping, and Ye Guangfu of the "Three Missions of Space on the Space Missing Missing Missing" entered the space in the Shenzhou 13 spacecraft, and began to stay in the "Space Home" for medium- and long -term stays. On May 10, 2022, the Tianzhou No. 4 freight ship was successfully launched, and the curtain of my country's space station construction stage was successfully opened.

In the current space station construction task that is currently implemented, Xi'an Branch has developed products such as compatriots, antenna networks, and instrumental computer application software for all cabins and spacecraft. Through the Tianji testing and communication system built by the trunks, the "remote driving" of Tianzhou, Shenzhou, experimental compartment and core compartment can be achieved at the same time. Real -time transmission to the ground and other data to the ground, and provide a communication link guarantee for the entire process for the connection of space. The second -generation relay satellite Tianlin No. 2, which develops all effective loads of the Xi'an Branch, is connected to the ground and space station as the "Space Base Station". It can realize the unsighting chain of the ground stations and the foundation of the foundation and control, and complete the information transmission between the two. With the maturity of the Sky Chain Jiejin Satellite System, the global and global sky -based testing and control network has been built. The long -term and stable and reliable world call has become a reality. Consolidate the "lifeline" of the space station. The state of the spacecraft and space stations can be fully controlled through the ground station, which is of great significance for the construction and maintenance of the entire space station. The instrumental application software undertaken by Xi'an Branch in the experimental compartment is different from the previous manned space engineering tasks. The instrument application software in the experimental cabin is based on the unchanged function of the space station sky and the core compartment, which increases, increased, increased, increased, and increased. Interacting with the data of the sky and the core cabin, in this way, the interactive data of the Tiangan experimental compartment and the two -cabin of the sky and the core cabin will increase the amount of data, and the computer application software of the instrument will become stronger.

For Tianhe core compartment, the USB antenna network is a rare unique configuration in the measurement and control system. As a passive product, the USB antenna network has high reliability. Once it is turned on, it is in a constant state. It needs to be operated independently for 15 years without additional operations of astronauts. In order to ensure the service life of the orbit, the USB antenna network has carried out a new round of technical improvement and test verification in the selection of materials, assembly processes, and structural design of the structure to solve the miniaturization, high reliability, long life, and guarantee Astronauts and other problems such as life safety. During the construction of the space station in the future, on the basis of demonstration of many fields, Xi'an Branch will open up new ways to explore new technologies and effective use of space station resources in the future.

The development process of participating in manned aerospace engineering products for many years is the course of the Xi'an Branch's aerospace people who have not forgotten their original intentions and keep in mind their mission. Perseverance and courage to defeat difficulties and use the struggle to successfully report the motherland successfully; it is the aerospace person who practiced "zero defects, zero failures, zero doubts" aerospace culture in Xi'an Branch. The spirit of the "two bombs and one star" cast by the older generation of spacemen, the rapid growth of young science and technology workers, and the use of youth and wisdom to continuously write the new and glorious struggle of China's aerospace industry. In the future, Xi'an Branch will actively implement the requirements of the Party Central Committee's decision -making and deployment and the relevant requirements of superiors, actively carry out follow -up task planning and research, develop better, easy -to -use, and enough manned space products to make new and greater contributions to the construction of the aerospace power. Essence

Photo by Xue Fei, a large scene of Xi'an Branch of the Fifth Hospital

(Guangming Daily All -Media Reporter Cui Xingyi Correspondent Wang Xixi)

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