chinese dream·craftsmen of a great power｜liu yong: china’s “core” of beidou system
2024-10-01
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cctv changsha news on october 1 (reporter yang qing) this is a chip of about 1 square centimeter. it looks very inconspicuous, but it is the crystallization of the wisdom of liu yong and his team members.
the chip is very small, only the size of an adult's fingernail; the chip is also very large, and its powerful processing power can carry beidou satellites to reach the sky and reach the stars.
this is the 14-nanometer beidou-3 high-performance chip independently developed by liu yong. liu yong is a senior algorithm designer and senior engineer in the system platform department of changsha jinwei integrated circuit co., ltd. (jinwei integrated circuit for short). he is also the designer and creator of the top beidou navigation chip in china - the "dolphin series".
the birth of the 14-nanometer beidou-3 high-performance chip opened a new page in china's "satellite navigation + integrated circuit" field. since then, it has gradually played an important role in agriculture, water conservancy, civil aviation, intelligent driving and other fields. today, this chip has crossed the sea and flown into space, becoming the "heart" of the application end of my country's beidou navigation system.
the first 14nm beidou-3 high-performance chip
in the jinwei current collection testing room, the chip is welded on the debugging board and connected to the computer. the traffic lights on the debugging board flash continuously, and the dense data on the computer is quickly refreshed.
liu yong is testing a chip with a machine. "developing a chip is only the first step. if you want to successfully apply it in different fields, you must continue to optimize and debug it in terms of positioning accuracy and stability," liu yong said.
in 2018, liu yong returned to his hometown of hunan from beijing and devoted himself to the research and development of beidou navigation chips. "when i joined the company in 2018, the team actually involved in the development of beidou baseband chips was less than 20 people." liu yong recalled. but at that time, everyone was filled with enthusiasm.
at that time, positioning chips were monopolized by foreign countries, which made my country's navigation and positioning constrained by others in terms of safety, technology and cost, and faced severe challenges.
"our mission is to complete a breakthrough from scratch no matter how much time or effort we spend - to develop beidou chips with independent intellectual property rights."
for this reason, liu yong and his team members often work overtime until two or three in the morning. when they are tired, they will lie down on the desk for a while; when they are sleepy, they will set up a simple bed in the office to sleep.
a chip the size of a fingernail (photo by cctv reporter yang qing)
a small chip may seem small, but it is very powerful. hundreds of millions of transistors do not allow even a tiny error to occur. after repeated research and development, design, and debugging...from the initial 55 nanometer to 40 nanometer, and then to 22 nanometer, after a year and a half of hard work, liu yong led the team to finally successfully develop the first 14 nanometer beidou-3 high-speed at home and abroad. the precision navigation chip has reached the international leading level.
this chip can provide centimeter-level accuracy when the car is traveling at a speed of 120 kilometers per hour, and millimeter-level accuracy location services under static conditions. it has the characteristics of high accuracy, high frequency, low latency, miniaturization and low power consumption. .
the chip participated in the evaluation of scientific and technological achievements organized by the hunan provincial department of science and technology, and was highly praised by many academicians and experts. it was evaluated as "the achievement is independent and controllable, highly innovative, and the technical level is at the international leading level." at present, the chip has achieved nearly 300,000 sets of industrial applications, with a direct economic value of over 400 million yuan.
the first beidou “chip secondary development” ecological model
"agriculture, transportation, emergency, electric power... the volume and prospects of beidou applications are very broad. it is our new mission to allow chips to serve more fields." liu yong said that the volume of beidou applications is huge, and only a few companies , it is difficult to support the highly prosperous development of the national beidou industry.
therefore, after launching the 14-nanometer beidou navigation chip, liu yong worked non-stop and led the team to continue exploring and making breakthroughs.
finally, in 2022, liu yong created the country's first "chip secondary development" platform for the beidou chip application ecological model, overcoming problems such as chip software architecture, business module components, configuration interface design, and performance structure optimization.
liu yong is testing the chip (photo by yang qing, reporter of cctv)
based on this platform, industry users can quickly implement technical solutions and product research and development, greatly reducing the professional threshold for beidou application development, reducing r&d investment in mid-stream and downstream industries, and shortening delivery cycles.
"chip secondary development" has also created an ecological model of win-win cooperation for the industry. currently, jinwei electric power collection has reached strategic cooperation with nearly 30 state-owned enterprises and listed companies such as china ordnance, china electronics, and aerospace science and industry, supporting key state-owned enterprise groups. it has more than 50 research institutes and institutes, has gained wide industry recognition, and has made significant contributions to the application of the national beidou system.
"research and development of chips is like nurturing a child. it requires full dedication and hope that it will grow up healthily and robustly." liu yong said, watching the chips and platforms he developed and created silently affecting all walks of life, he felt in his heart there is an indescribable sense of accomplishment and pride.
the choice between "everyone" and "small family"
the busy work takes up almost all of liu yong's time. it doesn't matter if he can't take a vacation. what makes liu yong most regretful is that he can't spend time with his family.
it's midnight every day when i get home from overtime work. even though we live under the same roof, it's difficult to see each other. i have no time or energy to spend time with my children. when it comes to family, the person liu yong feels most guilty about is his wife. "as a father of two children, after my wife gave birth, i did not sit with her for a complete confinement period." speaking of his wife, liu yong's face became a little softer, which also made him full of guilt.
liu yong, who has stayed at his job for many years, can only leave the responsibility of taking care of his parents and children to his wife. the kind-hearted and hard-working wife knew that it was not easy for him, so she silently shouldered the burden of the family.
you know, before participating in the development of beidou navigation chips, liu yong and his wife had never been separated for more than 5 days. nowadays, gathering less and leaving more has become the norm. winter comes and summer comes, winter passes and spring returns. in the choice between "everyone" and "small family", liu yong resolutely chose the former and devoted himself wholeheartedly to the research and development of beidou navigation industry.
to this end, he led his team to overcome difficulties, innovate and explore, break through a number of key technologies, and successfully develop two generations and eight "dolphin series" beidou core chips with completely independent intellectual property rights. the chip won the "2021 satellite navigation and positioning science and technology award-special prize for scientific and technological progress".
since his work, liu yong has undertaken and participated in 4 national and multiple provincial and municipal key scientific research projects, and has more than 20 invention patents. liu yong has also won the honors of changsha city high-level talent, changsha city urgently needed talent, hunan province huxiang young talent, and hunan province's second "huxiang outstanding craftsman".
liu yong, who has been working in the field of beidou satellite navigation and communications for more than 10 years, often says "love what you do". because of this persistence, love and responsibility, he has been setting an example, constantly exploring and pursuing perfection for ten years, and leading the team to always adhere to independent innovation. , broke through the commanding heights of technology, overcame the "stuck neck" key technologies, and taught them without reservation, cultivating dozens of core backbones and backbones in the beidou industry, accelerating the high-level development of the chip industry in the beidou industry, and promoting beidou in the country large-scale mature and stable application.
talking about the future, liu yong said that he hopes to continue to delve into the field of beidou satellite navigation, innovate technology, cultivate talents, and contribute to the country's national defense economic construction.
