People and people, things and things, people and things, can all talk to each other, and today, the impact of communication technology on human society can be described as earth-shaking.
At the beginning of the new year, Science and Technology Daily, the World 5G Conference, and the Future Mobile Communication Forum presented China's first popular science program in the field of communications, "Communication".
The slogan of this program is "Experts must also speak human words, and if they do not speak clearly, they are not allowed to leave."
In the first five episodes of the program, the host science writer Wu Baojun and his partner Science and Technology Daily reporter He Peiyuan will ask a number of experts, break open and crush the past and present life of communication technology, as well as automatic driving, smart medical care, 5G innovative talents that rewrite people's lifestyles on the basis of communication technology progress.
Starting with a look, humans have a way to communicate
From how humans effectively transmit information before there was no scientific and technological means, to the application of electromagnetic waves to communication, so that communication has made a qualitative leap, Cao Zexian, a researcher at the Institute of Physics of the Chinese Academy of Sciences, told a lot of interesting history and stories.
What was the earliest way humans communicated?
When I resent your approach, glance at you, and want you to get closer, give me a look.
This is the beginning of human short-distance communication. But the means of information transmission that is farther away is sound. Cao Zexian told us that folk songs are a mode of communication. In addition, the official station system for transmitting letters is a long-distance means of communication.
Don't think how smart today's communication methods are, before the use of electromagnetic waves to communicate, human beings have invented a set of effective and ingenious communication methods, from communication modes, coding, carrier use, to how to keep secrets, etc., everything is available.
The birth of electromagnetic waves is the starting point for today's communication technology.
We learned from textbooks that Gilbert discovered electricity, but we may not know that magnetism was found by a sheep herding baby in Syria today. It's like Faraday making us realize that electricity and magnetism are one and the same, that electricity produces magnetism, and that magnetism can also produce electricity, but we don't necessarily understand what the antecedences and consequences of Maxwell and his equations have with Tate.
What happened to the fourteen- and fifteen-year-old Marconi while traveling in the Alps? What did actor Heidi create together with the musician's ex-boyfriend? After the death of the great god genius Heinrich Hertz, why did the world give him such an evaluation: "He is the one who has been condemned by heaven"? Our Strivers dived 10,000 meters to the bottom of the sea, what communication technology was used?
The answer can be found from Cao Zexian's discussion of the past and the present.
From 1G to 5G there is nothing that cannot be talked to
From 1G to 5G, communication technology has evolved at an intergenerational rate every decade or so, and the progress of some key nodes has changed the way people communicate, driving changes in social life and even production methods.
As Dr. Xu Han, head of R&D at Qualcomm In China, said, 1G solves the wireless communication between people, in this era of analog communication technology, the particularly expensive "big brother" coverage is limited, the speed is very slow. Although digital communication technology in the 2G era has replaced analog communication technology, allowing mobile phones to cover a wider range of signals, better call quality, and lower prices, these two generations of technology are characterized by voice communication.
Since the beginning of the 3G era, everything has become different, real communication technology has begun to mature, data transmission has become a keyword, and the emergence and rapid popularization of smart phones have made 3G technology land.
It is also from this time that two things are worth remembering.
Since then, the 3GPP International Standards Organization has become an important link in the industry, promoting the unification and development of global mobile communication technology standards.
The CDMA technology that emerged in the 3G era is rarely talked about today, but its technological contribution still occupies an important historical position in the development and evolution of mobile communications to this day.
Although the application spawned by 3G technology seems very rudimentary today, when the interaction between technology and application has reached a certain stage, we have found that the data transmission speed is not fast enough, the bandwidth is not enough, and 4G technology has appeared, which has spawned many explosive applications.
In the same way, when 4G can not meet the further greater demand for bandwidth, 5G is coming, and more critically, its technical characteristics have brought about a revolutionary change in the role of communication technology on society, communication is no longer only for people, but can connect people and everything.
The development process from 1G to 5G is easy to sort out, and their phased impact on all walks of life is not difficult to understand, and your understanding of 5G mobile phones will be more profound.
How to understand obscure technical terms such as latency, millimeter wave, bits, download rate, etc.? Dr. Xu Han will also give a package of science popularization.
5G auto people are vying to make unmanned cars
Why more and more business tycoons cross-border cars, this question seems to have no answer, because 5G is coming, and autonomous driving has become a new track.
Is it that simple?
Focusing on the change of 5G technology and automatic driving technology to the traditional automotive industry, Professor Li Wanlin, director of the 5G and Autonomous Driving Innovation Center of North China University of Technology, is that the new forces of car manufacturing have driven into the new track of automatic driving.
What is the business logic of this industry?
In the past, we told the story of the car, the engine is the key word, it is the threshold of car building, and it is also the killer skill of the latecomer who is stuck and eager to try.
Li Wanlin specifically mentioned a data, traditional cars have tens of thousands of parts, 5G car makers entered, the parts have been reduced by more than ten times. More critically, the engine has undergone major changes.
This is equivalent to the threshold being cut thin, so that car building is more and more an assembly job, as long as you have money, you have the confidence to enter.
What will the cars of the future look like?
Mobile offices, mobile hospitals, mobile homes... The future car woven by each car builder has a different angle of entry, and the scene achieved is more or less the same.
When the car has a stronger perception, decision-making, and execution ability, the safety of the car, the importance of vehicle-road collaboration, the rational use and management of data are the keys to the future development of the car that Li Wanlin particularly emphasizes.
5G patients to alleviate the annoyance of seeking medical treatment
When the host Wu Baojun was still a small piece of fresh meat, he did not care about the topic of medical treatment at all, slowly found himself from the pain of illness, started from the old and the young, and saw a doctor, which became one of the contents he was most concerned about.
How much warmth and care can the blessing of 5G bring to "Wu Baojun"?
Lu Qingjun, director of the Development Office of China-Japan Friendship Hospital and national telemedicine and Internet medical center, and Wang Luyang, director of the medical and health industry of China Unicom's government and enterprise business group, objectively sorted out the convenience that 5G medical treatment will bring to people.
Because of the connection of 5G, massive medical data has the possibility of aggregation application. Registration, inquiry and treatment procedures, medical reports, etc. have thus achieved speed-up, so that data is more "running", and people are less busy in the hospital.
And artificial intelligence technology has been more and more applied to hospitals, one of the simplest applications is that when some patients face the hospital's self-service registration machine but do not know which department to hang, the input disease system will assist you in making a choice.
What else has changed, and how is the ARTIFICIAL reading achieved? How does it improve compared to traditional means? To what extent can the disadvantages of congestion in large hospitals in big cities be alleviated? How to make pre-hospital first aid more secure?
This episode will give answers.
5G dry rice people broad employment prospects are waiting for you
In the media people transformed into Qualcomm global vice president Hou Mingjuan, Beijing Jiaotong University Dean of the School of Electronic and Information Engineering Professor Ai Bo can be found in the past career history, both people dare to try and dare to break through, this brave trait is the legendary self-confidence of the important content.
Constantly learning in order not to be left behind by this industry with rapid technological progress, so that learning becomes a habit, and finding fun from learning is Hou Mingjuan's tips to newcomers in the workplace.
Love, persistence and perseverance are the three keywords of Ai Bo's career. Scientific research is a manual work, and military school life not only gave him a good body, but also forged his perseverance and supported him all the way to study.
By 2030, China's 5G talent gap will be as high as 8 million. Around the 5G social impact data released by the China Institute of Communications and Information Technology, the two experts interpreted the definition of 5G talents in detail, and pointed out that the 8 million gap underestimated the demand for 5G talents.
So, for communication technology talents, which aspect of the quality of the candidates is more important to the head of the communication company? What are the necessary entry requirements? How to win in today's talent-rich world? Hou Mingjuan will give answers one by one.
In view of the recruitment of talents, Ai Bo analyzed the characteristics of colleges and universities to "target" talents, and systematically analyzed the necessary capabilities of 5G innovative talents.
There can be miracles
When you believe
Though hope is frail
It's hard to kill
Ai Bo encouraged newcomers in the workplace with a theme song of "The Prince of Egypt": If you believe, there will be miracles.
(Liu Yan, He Peiyuan)
Source: Science and Technology Daily
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