Salvation to seize future development system ③: Beidou shines the world

The series of reports "Seeing the Heights of Future Development", today take you into the national key laboratory of satellite navigation systems and equipment technology to see how scientific researchers use the Beidou system to build a "space -time network" to provide information support for digital transformation.

Hebei Radio and Television reporter Liu Zhaomin:

Beidou Boarding Space, "Beidou+" integrates life. From mobile phone positioning to watches, from traffic navigation to disaster prevention and mitigation, from smart ports to smart agriculture, all aspects of our lives are quietly changed by a "time and space network" built by Beidou satellites.

Time and space constitute the entire world. As its name, today's "Beidou" has the ability to provide time and air service for all countries and regions around the world. But like other foreign satellite navigation systems, the indoor environment was once a blind spot that could not be touched by "Beidou".

He Chenglong, senior engineer of the National Key Laboratory of Satellite Navigation System and Equipment Technology:

After the navigation signal is transmitted from the space satellite to the ground, its acceptance power has become very small. The satellite navigation signal entering the indoor can be said to be weak, and it can be basically not found, which causes a interruption of navigation positioning.

Dare to be the first, the satellite navigation system and equipment technology key laboratory in Shijiazhuang began to explore the "indoor" "blind area", so that China's "Beidou" can truly touch every corner of the planet.

However, the signal's complex reflection, refraction and fragmentation of the application scenario caused this work to fall into a deadlock at the beginning.

Wei Baoguo, director of the National Key Laboratory of China Electronic Technology Group Co., Ltd. Satellite Navigation System and Equipment Technology:

In the case of this complicated radio wave spread, if you want to achieve high -precision measurement, it becomes very difficult, then there is no high precision positioning without high precision measurement.

Wireless LAN, millimeter waveli station, 4G, 5G ... the ready -made technology in front of them, but the cost is high, delayed, and poor accuracy. The respective defects make them unable to become the "choice" of the Beidou signal alone.

In the change of ideas, scientific researchers decided to explore the traceability and start from the dissemination law of the Beidou radio signal to explore low -cost, wide -covered Beidou pseudo -satellite wireless base stations.

He Chenglong, senior engineer of the National Key Laboratory of Satellite Navigation System and Equipment Technology:

The key core of the key core of the communication mechanism has been grasped tightly, so it systematically solves some key technical problems related to the design, capture tracking and positioning algorithm of the signal system of the pseudo -satellite.

Five years of research and development, breaking the barriers. They became the world's first team to realize Beidou pseudo -satellite Yami -level indoor positioning. With this technology, the current Beidou can not only tell users which shopping mall is in, but also accurately to the underground layer and several rows.

Yi Qingwu, deputy director of the National Key Laboratory of Satellite Navigation Systems and Equipment Technology:

The breakthrough of the Beidou indoor positioning service from zero to one is equivalent to opening the door of Beidou's indoor industrialization application.

Hebei Radio and Television reporter Liu Zhaomin:

Conquesting indoor positioning problems is just a key node from scratch. In this experimental field I was in, scientific researchers are weaving these key nodes to explore the construction of a new generation of heaven and earth associations at the same time, and realize the transformation from a good to excellent.

The heavens and the earth associate the air network at the same time, like a dialogue between real life and the stars. Under the guidance of Beidou, the "digital" "information" is accelerating its pace of transformation into actual productivity.

Wei Baoguo, director of the National Key Laboratory of China Electronic Technology Group Co., Ltd. Satellite Navigation System and Equipment Technology:

(In) nationwide and even global, by constructing such a comprehensive information network with a heavenly foundation and foundation resources. On the basis of positioning navigation and time -seeking services, it can support future intelligent location services. From vehicle navigation to satellite launch, from education and medical treatment to disaster prevention and mitigation. The space -time network will involve all aspects of future production and life. However, the scenes are different and the needs are different. The difficulty can be imagined by a net.

The first obstacle is eight words: "fine but not fast, fast but not fine."

Yi Qingwu, deputy director of the National Key Laboratory of Satellite Navigation Systems and Equipment Technology:

In other words, in order to obtain high accuracy, long -term data accumulation is needed. Such positioning services that need to respond quickly, and the accuracy cannot meet the requirements. Therefore, achieving fast, instantaneous, and high -precision services globally is a core issue we face.

The night was getting stronger. In this five -meter -wide conference room, the confrontation of thinking was colliding with inspiration. In the experimental building on the top of this head, similar scenes are normal. Faced with this big test, they "split troops to advance", and each correction team has made a rapid breakthrough in the fields of seamless positioning indoor and outdoor, Beidou+5G core algorithms; and then "fusion and win -win" will form a technical advantage of Tianji network and foundation. The network and mobile network "connected to the network".

Satellite Navigation System and Equipment Technology State Key Laboratory Senior Engineer Bao Yawa:

Through the organic fusion of the Beidou+low -orbit+5G+indoor network, we will build such a intelligent navigation service system with a network map and cloud collaboration to achieve seamlessly covered and accurate intelligent space -time service capabilities, reaching the international advanced level.

The formation is established and the results have emerged. Nowadays, from "Xue Ruyi" to realize "indoor and outdoor seamless positioning" to Zhengding Airport to provide intelligent and precise location services. This invisible space -time network is making the future world view more clear.

Based on Hebei, they are now working together in the construction of Xiong'an New District, the prevention and control of geological disaster warning, and smart venues. The guidance of the "promoting the strategic transformation of the industrial structure of Hebei" proposed by the Tenth Plenary Session of the Provincial Party Committee as the guidance, promoting multiple multiple The industry realizes technological innovation and changes in development models.

Shining the world, the "Beidou" of the State Key Laboratory of Satellite Navigation Systems and Equipment Technology is running towards the sea.

Wei Baoguo, director of the National Key Laboratory of China Electronic Technology Group Co., Ltd. Satellite Navigation System and Equipment Technology:

Inheriting the mission of the Beidou, in the future, we will face the international science and technology forefront, the major national needs, and the main battlefield of the national economy. Self -improvement to make new achievements.

Ji Shi Nu:

Only by controlling core technologies in your own hands can you truly grasp the initiative of competition and development. The future "time and space" network of Beidou system is such a national core technology.

The Tenth Plenary Session of the Provincial Party Committee called on the whole province to strengthen the awareness of responsibility and hard work. For the various scientific research units in the province, it is necessary to focus on the major national strategic needs, and build a key core technology research system and incentive mechanism, so that multi -disciplines and departments think about it, and to make it. The construction of a strong country contributes "Hebei Power".

Source: Hebei Radio and Television Station Jishi Client

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