Photo courtesy of China Weitong

　　On June 9, 2008, Zhongxing-9 was lifted by the Long March-3 B rocket and became the first real dedicated TV direct broadcast satellite in China. It has been more than 11 years since this flight. In the past 11 years, China’s first generation direct broadcast satellite space segment system has grown from scratch, serving 140 million users, effectively bridging the digital divide and enabling sustainable development.

　　Constructing the Space Segment System of the First Generation Direct Broadcasting Satellite in China

　　In the 1980s and 1990s, the demand for radio and television services increased sharply in all walks of life, and the demonstration of direct broadcast satellite system was accelerated in China. In 2000, the project of direct broadcast of radio and television satellite was included in the high-tech project in the tenth five-year plan of the country. In January, 2005, with the support of the former State Administration of Radio, Film and Television, the scheme of the same orbit, the same frequency band, the same capacity and the same coverage for Xinnuo-2 and Zhongxing-9 satellites was adopted. At the same time, the space segment system of China’s first-generation satellite live broadcast was approved by the National Development and Reform Commission and started to be implemented, and China Weitong was responsible for the specific management and operation.

　　Looking back 11 years ago, Jiang Longcheng, who was then in charge of the payload of China Satcom Zhongxing No.9, was filled with emotion: "I have been with it from preliminary design, key design to supervision." Zhongxing 9 is like a daughter in her own boudoir.

　　According to Jiang Longcheng, the live broadcast satellite system has the advantages of wide coverage, high transmission quality, low receiving cost and convenient maintenance. China has a vast territory, complex terrain and a large population. Direct broadcast satellite is the most effective means to realize the listening and watching of radio and television in the old, young, marginal, poor and vast rural areas.

　　Different from other satellites, the direct broadcast satellite needs repeated coverage optimization design to effectively cover the whole territory of China. However, for the first time, a high-power amplifier was used in Zhongxing No.9, and its effective radiation power met the requirements of China direct broadcast satellite system, which enabled more than 97% of the residents in China to directly receive satellite radio and television programs from China using a 0.45-meter small-aperture antenna.

　　As the confident Jiang Longcheng expected, less than one month after the launch, on July 5, Zhongxing 9 opened four transponders to transmit 45 sets of TVs and 43 broadcasts, and entered the trial operation stage; On August 6th, nearly 7,000 satellite TV receivers in Xizang were transferred from Asia-Pacific IIR to Zhongxing 9, marking the official opening of the direct broadcast satellite service in China. In the same month, the coverage of Zhongxing 9 was tested on the spot, and 27 test sites including Altay, Xisha, Mohe and Pulan were selected. The results showed that Zhongxing 9 had good performance.

　　In 2013, in order to ensure the safe broadcast of the live satellite service, avoid the systematic risk of the operation of Zhongxing 9 Lone Star and ensure the safe broadcast of radio and television programs watched by hundreds of millions of people, China Satellite Communication restarted the construction of Zhongxing 9A (Xinnuo 2 replacement star). Zhongxing 9A also added the South China Sea beam, which solved the problem that it is difficult for military and civilians in the South China Sea to watch TV. On June 19, 2017, the domestic broadcast live star Zhongxing 9A was launched, and then it undertook the task of safe backup of Zhongxing 9 live star.

　　Serving 140 million users to bridge the digital divide

　　A few hundred meters away from xichang satellite launch center, in the depths of Daliangshan Mountain, is Mayelin Village where Yi people live together. Although it is only a few hundred meters away, the members of the Zhongxing No.9 test team stationed at the launch site and the villagers in Mayelin Village have very different information acquisition. The experimental team members from big cities know radio, television and internet like the back of their hands, but many villagers who have lived in the deep mountains for generations have only been to Mianning County as far as possible, and there are almost no channels to understand the outside world.

　　In this way, an invisible digital divide lies in the Great Liangshan Mountain, and the broadcast satellite Zhongxing 9/Zhongxing 9A launched from here provides an effective technical means for narrowing the gap between urban and rural areas, eliminating the digital divide and building information fairness and justice.

　　Through the live satellite of Zhongxing-9 and Zhongxing-9A, a "pot" for receiving satellite signals to the outside world was set up on the roofs of remote villages in Daliangshan. The people in rural Xizang witnessed the grand occasion of the Beijing Olympic Games that year, and more compatriots in remote areas were able to hear and see the care and voice of the CPC Central Committee for the first time.

　　The direct broadcast satellite "every village is connected" and "every household is connected" projects have effectively covered 595,000 administrative villages, meeting the needs of 140 million users to listen to and watch radio and television programs, exceeding one third of the total number of radio and television users in China. The problem of "difficult, expensive and poor" coverage of rural radio and television in China has been fundamentally solved, and the quality, level and viewing effect of rural radio and television coverage have been greatly improved.

　　Up to now, rural users in China can listen to and watch 17 sets of central radio programs, 17 sets of central TV programs, 27 sets of provincial radio programs and 41 sets of provincial TV programs through Zhongxing 9 satellite, and Xinjiang, Xizang, Ningxia, Inner Mongolia, Guizhou and Hainan have achieved satellite transmission and directional coverage of programs in their own provinces (regions) or cities.

　　Beginning in 2018, the dual-star backup of central radio and television programs and minority language programs will be gradually realized through China Satellite 9A. At the same time, the South China Sea beam on the satellite will be used to provide radio and television programs of the central and some coastal provinces to the people in the South China Sea.

　　Promote model innovation and empower sustainable development.

　　In recent years, the direct broadcast satellite system has explored new focal points and ways to achieve radio and television services to the overall national work and meet the people’s beautiful spiritual and cultural needs, focusing on the positive actions of building a well-off society in an all-round way, accurately helping the poor, revitalizing the countryside and enriching the people, and has also played a very good role in helping the poor and helping the wisdom and improving the level of rural civilization.

　　Facing the first generation live broadcast satellite system that has been in operation for 11 years, starting the replacement satellite project is the next task of China Satcom. In addition, the innovative exploration of direct broadcast satellite business model is also a topic.

　　Although the direct broadcast satellite has greatly improved the radio and television public service in remote rural areas, under the situation that the number of users of direct broadcast satellite service has increased rapidly year by year, the transponder rental rate has improved, but the high-quality transponder resources have not been fully utilized.

　　Jiang Longcheng, who is now the technical director of China Satcom Business Operation Center, has taken a longer-term view of the direct broadcast satellite business that he has devoted half his life to. He hopes to increase the use of direct broadcast satellites, especially promote the business application in key areas, accelerate the implementation of the value-added business plan, and tap the value of many users in various directions.

　　"For live broadcast satellites, only by giving full play to their excellent performance and benefits can we meet the needs of the people for radio and television services more widely, which is also the direction that live broadcast satellites should work hard in the future." Jiang Longcheng said. (Hu Wei Wu Lin)

　　CCTV News:On the 11th, despite the notice of objection issued by the Hong Kong police, there were still demonstrators marching in various parts of Hong Kong. Among them, mobs threw petrol bombs at police officers in Cheung Sha Wan Police Station, Tsim Sha Tsui Police Station and Wan Chai Police Headquarters, and attacked police officers, resulting in injuries to many police officers. CCTV reporters conducted an exclusive telephone interview with one of the injured police officers.

　　That night, a police officer was burned on both legs by petrol bombs thrown by mobs while on duty in Tsim Sha Tsui police station. It was preliminarily diagnosed that 10% of the left leg suffered second-degree burns and 3% of the right leg suffered first-degree burns. In the vicinity of Cheung Sha Wan, another police officer on duty was also attacked by petrol bombs, and one police officer was injured in the process of arresting the mob.

　　Injured hong kong police officerAt that time, we were dispersing demonstrators in Cheung Sha Wan District. During this period, demonstrators threw petrol bombs at us, but these petrol bombs didn’t hit the police. Then when we went forward to arrest, during my running, my right knee hit a hard object, which caused me to fall and get injured. "

　　journalist: "For such a long time, how did you feel when you saw or heard that a colleague was injured?"

　　Injured hong kong police officerOf course, I feel very weak and unhappy when I see my colleague injured. Because I don’t know if the next person to get hurt will be a colleague I know around me, or myself. We don’t want any colleagues, and any Hong Kong policeman is injured again. "

　　"If demonstrations resort to violence, the police will resolutely enforce the law."

　　The injured Hong Kong police officer said that as the most advanced law enforcement officer, what he recently saw in Hong Kong was "definitely not what some media with ulterior motives said ‘ Peaceful demonstration ’ " .

　　Injured hong kong police officer: "If they demonstrate reasonably and peacefully, we absolutely respect them. But our frontline police, our law enforcement officers are definitely not seeing a peaceful and legal demonstration, nor a demonstration without violence. Every time, they used various methods to damage Hong Kong’s infrastructure and even attack our Hong Kong police. If your demonstrations are peaceful, we will definitely respect your demands, but if you use violence, or destroy facilities, causing inconvenience to other citizens or even attacking others, we Hong Kong police will definitely enforce the law decisively. "

　　"Thank you so many people for supporting the Hong Kong police."

　　The police officer also expressed the hope that their law enforcement would be understood by Hong Kong people, and he thanked so many people in Hong Kong and the Mainland for supporting the Hong Kong police.

　　Injured hong kong police officer"We all hope that the people of Hong Kong can understand that we need to use minimum force in law enforcement. At the same time, we also hope that they will understand the difficulty of our work and try not to go to these dangerous places. We also don’t want any more citizens to be attacked by other demonstrators, resulting in unwarranted injuries. "

　　journalist: "Yesterday (10th) ‘ National Police Support Day ’ Many mainland police officers and citizens have launched ‘ Do you say that you have no clothes and a robe with your son ’ Such an activity gives support to the police in Hong Kong. I don’t know if you have seen such news on the Internet? "

　　Injured hong kong police officer: "Yes, we have all seen it. Thank you so many people for supporting our Hong Kong police."

　　Beijing Youth Daily News (Reporter Jiang Ruojing) Before the end of next month, patients can make an appointment for the number source of the tertiary general hospital of the social office through the unified platform for appointment and registration in Beijing. A few days ago, the Municipal Health and Health Commission issued the "Notice on the Access of Social-run Third-level General Hospitals to Beijing’s Unified Platform for Appointment Registration". Social-run Third-level General Hospitals that normally open outpatient services to the public in the city can voluntarily choose to access the unified platform according to the actual situation. Hospitals in need can apply to the Beijing Municipal Health and Health Commission’s Medical Administration Office, and the Municipal Health and Health Commission will coordinate the hospitals to connect with the Beijing Unified Platform for Appointment Registration.

　　The Municipal Health and Health Commission stressed that the unified platform for appointment registration in Beijing adheres to the principle of public welfare service, and the appointment registration service provided through the unified platform shall not charge the appointment registration service fee. At present, the unified platform for appointment and registration in Beijing provides appointment and registration services for 147 secondary and tertiary public hospitals in Beijing.

　　The Municipal Health and Health Commission requires that the social-run tertiary general hospitals that are included in the platform should realize the full-number, full-number, full-source open reservation, and focus on ensuring that key departments and characteristic departments with large demand from the masses reserve the number of sources; Provide various forms of appointment services, including unified platform telephone appointment and online appointment services, as well as inter-clinic appointment, on-site appointment and community referral appointment; The first outpatient consultation is registered according to the department and title, and the patients who return to the clinic can be registered by the doctor through the appointment of return visit; The registration service provided by the hospital on the unified platform for appointment registration should be reserved for 3 months; Strengthen real-name registration system’s appointment registration and medical treatment, and verify the patient’s real name identity in triage and medical treatment; The appointment shall be made in different periods, and the appointment period shall be exactly within 30 minutes, and the number of doctors visiting in the morning and afternoon shall be reasonably allocated to increase the number of doctors visiting in the afternoon.

　　The Municipal Health and Health Commission requires that all hospitals should strengthen the overall management between the unified platform and other forms of appointment sources in the hospital. According to the appointment needs of patients in our hospital, the number and proportion of different numbers and different appointment methods should be adjusted in a timely manner, and patients should be guided to use the appointment method through the number source delivery mechanism. At the same time, it is necessary to do a good job of service connection with the unified platform, and reasonably divide the professional or specialist source categories uploaded to the unified platform according to the principle of not naming names, so as to ensure the accuracy of patient appointment and treatment.

　　Each hospital outpatient service should be equipped with an appointment consultation desk, equipped with corresponding service facilities and equipment and standardized, clear and easy-to-understand service signs; To strengthen the management of doctors’ visits, doctors should have examination and approval procedures and make-up requirements when stopping their visits, and timely arrange doctors with the same professional title to make up for their visits. For patients who have successfully made an appointment through the unified platform, according to the system of no roll call, the hospital should ensure that they see a doctor within the appointment time. Hospitals should also strengthen the education and training of medical staff, do a good job in making appointments for diagnosis and treatment services and emergency handling, and cooperate with Beijing Unicom to do a good job in training telephone booking service personnel on the unified platform to ensure service quality.

　　The Municipal Health and Health Commission said that all social tertiary general hospitals need to complete the access to the unified platform before the end of August this year. It is understood that the unified platform for appointment registration in Beijing is the official appointment registration channel designated by the Beijing Municipal Health and Health Commission. The platform does not provide the same-day appointment service. Users can make an appointment to access the number sources of most departments of the unified platform hospital from the next day to three months. The unified platform does not make an appointment by name according to the hospital, department, title and specialty. The specific appointment registration period and source information shall be subject to the 114 service telephone inquiry and website publicity.

They are "post-90s" younger brothers.

He is also an anti-epidemic fighter wearing a "war shirt"

They are "post-90s" cute girls.

It is also angels in white who sticks to the front line of the war "epidemic"

They bravely retrogressed to the front line of the epidemic

This is exactly what youth looks like

Among the medical staff supporting Hubei

"After 90" and "After 00"

There are more than 12,000 people in total.

Almost a third of the whole team.

They proved by action.

Your own responsibility and value

one

A name that can finally be said

Night shift 5 hours

Her face was stained with blood by a mask.

When interviewed in front of the camera

She said: Don’t broadcast the name, mom will be worried when she knows it.

Now the name can finally be said.

Her name is Luo, and she is 24 years old!

Fighting the "epidemic" for more than 50 days

She finally said that to her mother.

We won.

2

We will not retreat until the epidemic is over.

Liang Shun, 21, is from Jinyintan Hospital in Wuhan.

The youngest ICU nurse

He once joked that he was "not as good as a rookie"

But in the New Year’s Eve, regardless of family opposition.

Go back to the hospital to fight the "epidemic"

Liang Shun said

He will fight the epidemic until the end.

Will be the last batch.

The medical staff who do the finishing work.

"We will not retreat until the epidemic is over."

three

He is like a brother.

If it weren’t for Zhang Yizhen’s heavy protective clothing

People really forget.

This is a battle against the epidemic.

In Wuhan Children’s Hospital

Unlike where will you go in the ICU ward.

The fighting here looks so happy.

He is like a brother.

Into the children’s world

four

It is impossible to say that you are not afraid.

Climb to the top of a 6-meter-high 30-ton tank.

Hoist the motor pump with traction rope.

"Post-90s" Firefighters in Hubei Province

Continuous transfer of 430 tons of medical wastewater

"It is impossible to say that you are not afraid.

Everyone will be a little scared more or less,

But the epidemic is the order. "

five

Walk through a "second ring road" every day

during the epidemic

In Nanli, Donghua City, Dongcheng District, Beijing

Young social workers born after 1990s.

Pulling this car to serve the isolated residents at home.

Distance traveled every day

Equivalent to a second ring.

People will not forget after the epidemic is over.

Volunteers are pulling the car.

Walked through the ditch

six

Mask is a line of defense for life.

Wu Haiwan is a post-90s generation.

He is also the director of a mask factory in Changsha.

In the face of an emergency epidemic

December 27

Eight production lines of mask factory resumed work in an all-round way

Fight the "epidemic" for 100 days

30 million masks were produced.

Donate about 700 thousand

"A mask is a line of defense for life.

Even if you can’t go to the front line,

We should also keep our positions. "

seven

Delayed marriage certificate for 64 days.

Hu Xiaohan is a nurse in Wuxi Second Hospital.

After the outbreak

She went to her hometown of Hubei to fight the epidemic.

Delayed the plan to get a license with her boyfriend.

After more than two months.

The two finally came to the Civil Affairs Bureau.

Getting a marriage certificate delayed for 64 days

A sudden epidemic

It seems to be a moment when "post-90s" and "post-00s" grow up.

A child who was once guarded

In the face of the epidemic, I have the shoulder to shoulder the heavy burden.

Grow against the wind

The more you sharpen, the stronger you become.

Source: Xinhuanet Sike is compiled from CCTV, Zhongxin. com, Yangguang Military, China Daily, Beijing Daily, etc.

CCTV News:Since the disaster occurred, the people’s army has actively supported local flood fighting and disaster relief. On August 7, more than 20,000 officers and men were dispatched to carry out rescue operations in Beijing, Hebei, Tianjin, Heilongjiang and Jilin.

According to the task deployment, more than 7,500 officers and men stuck to levees and repaired roads in Tianjin, loaded and transported more than 190,000 sandbags, reinforced levees of more than 4,100 meters, blocked 21 piping, and eliminated about 22,000 square meters for epidemic prevention; More than 2,700 officers and men searched and rescued more than 5,200 people in Shangzhi, Wuchang, Heilongjiang, Yushu, Lan Shu, Songyuan and other areas, reinforced more than 2,200 meters of levees, repaired 45 kilometers of roads, disinfected about 10,000 square meters of epidemic prevention, and transported 17 tons of materials; More than 10,000 officers and men continued to repair 75 kilometers of roads, transport 641 tons of materials, clean up 74,000 cubic meters of silt, eliminate about 910,000 square meters of epidemic prevention and treatment, and treat more than 380 people in Beijing Mentougou, Fangshan, Changping, Daxing and Zhuozhou, Laishui and Zhuolu waterlogged areas in Hebei.

　　According to the latest real-time statistics of WHO, as of 16: 06 Central European Summer Time on August 18th (22: 06 Beijing time on August 18th), there were 208,470,375 confirmed cases and 4,377,979 deaths in COVID-19. On the 18th, there were 542,708 new confirmed cases and 6,739 new deaths in COVID-19.

　　WHO: Vaccine can effectively prevent severe illness and death caused by Delta mutant.

　　On the 18th, local time, WHO held a regular press conference in COVID-19. Sumiya Swaminatan, chief scientist of WHO, said that Delta mutant was highly contagious, and there had been cases of virus infection after vaccination. However, the vaccine can effectively prevent severe illness and death caused by Delta mutant.

　　Sumiya Swaminathan also stressed that wearing a mask is also very important. Recent research models show that in countries with high vaccination rates, everyone wearing a mask will reduce the community spread of the virus more quickly.

　　The number of cases has soared, and the medical system in Alabama in the United States has almost collapsed

　　On August 17th, local time, Don Williamson, president of Alabama Hospital Association, said that with the recent surge of infection cases in COVID-19, the state medical system has been overloaded. As of August 17th, local time, the number of critically ill patients (1568) who need beds has exceeded the total number of beds in the intensive care unit (1557).

　　The "hardest hit" of the Delta strain in Rio de Janeiro, Brazil

　　As of 19: 00 local time on August 17th, according to the data released by the Brazilian Ministry of Health, there were 37,613 newly confirmed cases of COVID-19 in Brazil, with a total of 20,416,183 confirmed cases.

　　The occupancy rate of intensive care beds in seven cities in Rio de Janeiro has reached 100%, the occupancy rate of intensive care beds in Rio de Janeiro, the capital, has reached 95%, and the occupancy rate of intensive care beds in the whole state has reached 70%, which is also the highest figure since June 13. Recently, Rio State has been the "hardest hit" of Delta virus strain of COVID-19, and the number of patients infected with this variant has exceeded 60% of the total number of infected people. Two weeks ago, the figures for Rio and Rio de Janeiro were 45% and 26% respectively.

　　The Vietnamese capital Hanoi will conduct the second round of large-scale Covid-19 testing.

　　According to the news of the Ministry of Health of Vietnam on August 18th, starting from August 21st, the health department of Hanoi, the capital of Vietnam, will test 800,000 Covid-19 samples from 13 groups of people in high-risk areas of the city. This is the second large-scale Covid-19 test in Hanoi recently.

　　The 13 high-risk groups that need to be tested include: take-away riders, sellers in traditional markets and small markets, salespeople in supermarkets and trade centers, grocery store practitioners, gas station workers, industrial parks and long-distance bus drivers, security guards in apartment buildings, industrial parks, institutions and non-governmental organizations, construction workers, pharmacy salespeople, warehouse workers, quarantine station attendants, anti-epidemic volunteers and sanitation workers.

　　Kenya’s national curfew was extended for another 60 days.

　　On August 18th, local time, the Presidential Palace of Kenya released a message saying that the recent report of the Kenyan Ministry of Health showed that the number of people infected with Covid-19 increased in many counties due to the failure of people to strictly abide by various epidemic prevention measures and the strong spreading ability of Delta mutant strains, and the positive rate of Covid-19 test in 18 counties exceeded 20%. Last week, the positive rate in 8 counties exceeded 30%.

　　In order to curb the further development of the epidemic, Kenyan President uhuru kenyatta announced that the national curfew from 20: 00 every day to 4: 00 the next day will be extended for another 60 days; Suspension of public meetings, including political meetings and election campaigns, for 60 days; Wedding funerals, traditional celebrations, etc. need to be strictly controlled within 100 people.

　　Up to now, the total number of confirmed cases in COVID-19 has reached 224,400.

　　North Macedonia tightened its entry policy on September 1.

　　According to a report by the North Macedonian News Agency on August 18th, local time, the government held a meeting on the evening of 17th to adopt the advice of epidemiologists and tighten the entry policy in view of the recent rebound of epidemic situation and the increase of newly confirmed cases and deaths. That is, starting from September 1st, both foreign and domestic citizens are required to have vaccination certificates or negative reports of nucleic acid detection within 72 hours when entering North Macedonia, and patients infected with Covid-19 are required to have rehabilitation certificates within 45 days.

　　According to the data of the Ministry of Health of North Macedonia on 17th, there were 999 new confirmed cases of COVID-19 and 14 new deaths in that country.

　　Singapore Jetstar Asia Airlines stipulates that all employees must be vaccinated with COVID-19 vaccine.

　　Singapore’s low-cost airline Jetstar Asia Airlines stipulated on the 18th that all employees must complete COVID-19 vaccination by October 1st at the latest, becoming the first airline in Singapore to set this requirement.

　　Jetstar Asia Airlines said that vaccination can reduce the risk of contracting Covid-19 and protect employees and people around them.

　　On the afternoon of April 17, a fire broke out in an enterprise factory building in Fenghuangshan Industrial Zone, Wuyi County, Zhejiang Province, and local rescue forces rushed to the scene to carry out firefighting rescue. As of the early morning of the 18th, the open flame has been extinguished, and the people trapped at the scene are being searched and rescued.

　　The fire building is located in a three-story industrial workshop in Fenghuangshan Industrial Zone, Wuyi County, Jinhua City, Zhejiang Province. The local fire department received a fire alarm at 14:04 on April 17th. Up to now, a total of 36 fire engines and more than 170 firefighters have arrived at the scene to carry out fire fighting and rescue work.

　　The reporter learned at the scene that the building where the fire broke out was a local factory building that made wooden doors. The burning substances were initially judged as wooden doors, paints, packaging, etc. When the fire broke out, it was during the working hours of the enterprise, and many employees lost contact.

　　Shao Yunfei, deputy detachment leader of Jinhua Fire Rescue Detachment, Zhejiang Province:It’s 1: 46 am (April 18th), and the open fire at the scene has been put out. We are currently organizing personnel to search and rescue the missing persons. The difficulty of search and rescue is mainly in two aspects. First, the steel structure factory building is at risk of collapse after a long period of hot radiation; The other is that there are some paint and other substances on the scene, and we are not sure whether there are any harmful substances in it.

　　As of press time, the on-site search and rescue work is still in progress, and the aftermath of the accident is also being carried out simultaneously.

　　(Headquarters reporter Zhang Guoliang Xia Zhou Qi Yinsong Mu Liang Liu Yingjie)

The Russian military "dagger" hypersonic weapon system successfully completed the test in the Arctic, and the US Navy began to test unmanned sailboats in the waters near Jordan … At the end of the year and the beginning of the year, military powers such as the United States and Russia made frequent moves in the research and development of new weapons and equipment. After a little combing, it is not difficult to find that in recent years, with the continuous progress of global scientific and technological level, a large number of cutting-edge technologies have been applied to the military field, a new round of world military scientific and technological revolution is surging, and the form of war is quietly changing.

Hypersonic weapons have developed rapidly

Hypersonic weapons mainly refer to weapons based on hypersonic flight technology, which fly at more than 5 times the speed of sound, including missiles, bombers, reconnaissance planes and so on. This new weapon, which is known for its quickness, is considered by many military experts to change the future war mode to some extent. In recent years, the United States, Russia and other world military powers have launched fierce competition in the field of hypersonic weapons, launched a number of hypersonic weapons research and development projects, and some projects have made major breakthroughs.

Russia is in a leading position in the field of hypersonic weapons. As early as the late 1980s, the Soviet Union began to develop the hypersonic cruise missile code-named "X-90". At present, there are three kinds of hypersonic missiles owned by Russia, namely zircon, dagger and pioneer. Among them, the "dagger" hypersonic missile has a speed of up to Mach 10, which is mounted and launched by MIG -31 fighters. It can carry conventional warheads or nuclear warheads and is the first hypersonic weapon put into use by the Russian army. The speed of "Pioneer" hypersonic intercontinental missile exceeds Mach 20, which is enough to easily penetrate the air defense and anti-missile network carefully constructed by opponents. At the end of 2019, the first land-based "Pioneer" missile regiment of the Russian army joined the combat duty. "Zircon" is Russia’s first sea-based hypersonic cruise missile. It was successfully tested in October 2020 with a flight speed of Mach 9 and can be launched from a warship or submarine.

America also attaches great importance to hypersonic weapons. At present, the US military services are developing hypersonic weapons, mainly including the navy’s "conventional fast attack" hypersonic glider, the army’s "long-range hypersonic weapon", the air force’s AGM-183 "air-launched rapid response weapon" and "hypersonic attack cruise missile". However, the development of US hypersonic weapons is not smooth. In 2021, the US Air Force conducted three test launches of new hypersonic missiles, all of which ended in failure.

In addition, Japan, South Korea, India and other countries also have their own hypersonic weapons development plans and projects. It can be predicted that in the field of hypersonic weapon research and development, the situation of fierce competition among countries will become more and more obvious.

Artificial intelligence technology is widely used.

Artificial intelligence is one of the core technologies leading a new round of military revolution. In recent years, in order to seize the commanding heights of military science and technology, major countries have promoted the application of artificial intelligence technology in the military field while upgrading the research and development of artificial intelligence to a national strategy.

The United States is the first country to develop artificial intelligence technology and apply it to the military field. At present, the Advanced Research Projects Agency of the U.S. Department of Defense has launched the "Next Generation Artificial Intelligence" project, which mainly includes: promoting the technical update of key business process automation of the Department of Defense, improving the adaptability and reliability of the artificial intelligence system, enhancing the security and flexibility of machine learning and artificial intelligence technology, and innovating the algorithms and applications of the next generation artificial intelligence. At the same time, the US military has incorporated the development of artificial intelligence technology into the information plan of the Ministry of National Defense. According to reports, the US Navy EA-18G Growler electronic warfare aircraft has the ability to counter the enemy’s unknown radar due to the use of machine learning algorithms and other technologies.

Russian military artificial intelligence technology has been tested in actual combat. In the battle to help the Syrian government forces fight against the rebels, the Russian army used combat robots, drones and automated command systems. At present, the artificial intelligence marine robots independently developed by Russia include "Platform -M" and "Argo", which can perform tasks such as patrol, reconnaissance, demining and close fire support. In addition, the Russian army has also developed a robot that looks like a military dog and can run quickly, which is used to undertake tasks such as transporting ammunition supplies to the line of fire.

Britain, Germany, Israel and other countries have also taken artificial intelligence technology research as the focus of national defense construction. Britain claims to have developed a military robot called Homo sapiens. Germany’s Typhoon fighters have successfully connected with remote control vehicles. The Israeli military is developing intelligent tanks, which can plan tasks independently, drive automatically and use weapons automatically.

Unmanned combat weapons are in the ascendant

In today’s era, a new round of world scientific and technological revolution is developing rapidly, and the form of war is accelerating to intelligent evolution. In order to win the future war, major countries have accelerated the development of unmanned combat weapons and actively explored man-machine cooperative warfare methods.

According to the plan of the Russian Ministry of Defense, the Russian army is setting up the first unmanned combat unit composed of attack robots. The unit includes five sets of Uranus -9 robot systems and 20 unmanned combat vehicles. Uranus -9 is a multi-functional combat platform, equipped with 2A72 30 mm automatic artillery, 7.62 mm machine gun, anti-tank missiles and other weapons. At present, the Russian army, navy and air force have all installed unmanned combat platforms. Every division and brigade-level unit of the Russian Army has a drone company, and the Russian Northern Fleet has a drone regiment.

Most of the US Army combat units at all levels have UAV units. The US Navy is implementing the "Ghost Fleet" plan and preparing to build a force including 10 unmanned ships. At present, the US Navy has completed the twin-boat test of two unmanned ships, the Wanderer and the Ranger. These two ships will be equipped with Mk41 missile vertical launch system or Mk57 advanced vertical launch system. According to a guidance document issued by the US Navy in early January this year, medium and large unmanned surface combat ships and their formations will be the focus of their future development.

France, Britain and other countries are also striving for breakthroughs in the research and development of unmanned combat weapons. The British Ministry of Defence plans to start manufacturing the first unmanned combat aircraft in 2025. Equipped with missiles and electronic warfare equipment, the fighter will become the first unmanned fighter in Britain to shoot down enemy aircraft and resist the threat of surface-to-air missiles. The British Ministry of Defence claims that this unmanned aerial vehicle can find and avoid the enemy’s air defense system, and can continue to perform tasks even in the case of cyber attacks.

(Author: School of Information and Communication, National University of Defense Technology)

Above: Russian naval vessels test-fired "Zircon" hypersonic missiles.

Information picture

Secret visitor

Director:

Screenwriter:

Starring: / 　/　　/　　/　　/　

Special feature of 1905 film network A harmonious family of four lived with a stranger (Duan Long) and lived under the same roof for many years. As the door of memory opens again, the past reappears, and a series of "strange things" follow, and the originally harmonious family is no longer calm.

All villains?

If you put the painters in the park — — Aaron Kwok, the eagle in the park — — Duan Long, Shen Yijun in the movie — — Xu Weining, Sinuo in the movie — — Zifeng Zhang, Zhu Chaoyang in the forest — — Rong Zishan put it in a movie and guessed "who is the bad guy". The difficulty level and suspense index can be imagined.

At the party, they will get together as family members and give the audience a "who am I" guessing feast. One dining table, five worlds, everyone hides an unknown secret, and their relationship will become one of the highlights of Secret Visitors.

The five people sitting at the dinner table in the movie have different looks, and the scene of the murder that flashed by is even more creepy. There are various indications that this dinner seems to be more like a carefully planned "Hongmen Banquet", where everyone is silent and the crisis is everywhere.

"Suspense experts" Chen Zhengdao and Shu Qiao meet.

As a young director who continues to have word-of-mouth works, Chen Zhengdao’s films and online drama "Skyscraper" after entering the mainland market have gradually made him gain a foothold in the suspense film field. Multi-line narration is becoming more and more fluent, and logical reasoning is becoming more and more meticulous. Chen Zhengdao seems to have found a field that he is good at and recognized by the audience — — Suspense genre film.

Family, confined space, mysterious visitors, etc., the elements contained in Secret Visitors are all good for suspense film lovers. Judging from his past works, "brain burning" has a strong temperament, and the story will never let the audience guess the ending until the last moment, and "Secret Visitor" may be no exception. The suspense atmosphere revealed by the trailer is strong, especially under the wonderful interpretation of the powerful actors, which is even more dramatic.

The Secret Visitor is a powerful cooperation. Shu Qiao is well-known to the outside world as the producer of the famous documentary "Eating China". In fact, she is also an expert in suspense, and her mystery novel "A Story of Double Eating" was once adapted into a film of the same name. Shu Qiao once said: "Home is the place with the most secrets." More secrets, more conflict games; Everyone has secrets, which means that the story may have five perspectives, and there will be different mysteries from different perspectives.

For fans, brain cells burn more, and the feeling of watching movies can be more sour. For the first time, two veritable suspense experts cooperated with each other. How to use the secret room to explain a complicated Chinese family relationship in The Secret Visitor is really curious.

Expecting the powerful school to drag the show.

The main scenes of "Secret Visitor" seem to be at home, and the space is relatively narrow. Therefore, the film relies more on the emotional expression of the actors on the basis of winning the plot, delivering it accurately and letting the audience enter the play. This is a great test of acting skills. Fortunately, Aaron Kwok, Duan Long, Zifeng Zhang, Xu Weining and Rong Zishan are all worth looking forward to.

The Secret Visitor is the first collaboration between Aaron Kwok and Duan Long. As a veritable strength faction, they are undoubtedly able to accurately interpret complex roles. Aaron Kwok plays an inviolable male host sitting in a high position in The Secret Visitor. From the moment he appeared, he gave people a strong sense of oppression, while Duan Long appeared as a "visitor" and was an "intruder" of the family. The confrontation between them will be the main attraction of the film.

Female characters also play an important role in The Secret Visitor. Zifeng Zhang, who plays "Sister", makes "Secret Visitor" refreshing. At the end of detective chinatown, Zifeng Zhang was impressive with a ghostly smile, which made him a famous movie scene.

Xu Weining, who plays the role of "Mom", has been selected as the best actress in various TV and film festivals for many times. In recent years, many suspense and thriller movies starring her have made certain achievements. The little girl in red and the memory master let the audience see her shaping power in suspense dramas.

It can’t be ignored that Rong Zishan, who plays "younger brother", as a rising star in Ran Ran, has performed brilliantly in other films. In the online drama "Hidden Corner", Zhu Chaoyang, a "dark boy", made the audience shudder.

All the villains, the master of the whole family, come to watch the game at 8: 00 pm on October 7!

Source: China Screen

Author: Berman

Internship Editor: Huang Jialin

　　Li Weiqing, who works in Beijing, didn’t pay much attention to the news that Spring Festival travel rush Railway will start selling tickets in 2020. Since buying a car, he has chosen to drive home every Spring Festival. He has been running for several years from Beijing to Jinzhou, Liaoning Province, about 500 kilometers of expressway.

　　"If it goes well, it will take five and a half hours. Once I caught a traffic jam, I got home in nine hours." In Li Weiqing’s view, driving home not only saves the anxiety of grabbing tickets, but also increases the opportunity to chat and talk with parents.

　　"Because I used to travel a lot in my previous job, it is actually a rare opportunity to communicate with my parents by car in the New Year. Starting from home, bring all the food and drink, and hurry and slow all the way. It is easier to talk and chat. " Li Wei qing said.

　　With the Spring Festival travel rush train ticket on sale on December 12th, "Spring Festival travel rush in 2020" once again boarded the hot search. Compared with Spring Festival travel rush in 2019, Spring Festival travel rush will be 11 days ahead of schedule in 2020. Therefore, some experts predict that Spring Festival travel rush will see the peak of passenger travel in the early stage, which is the superposition of "work flow", "student flow" and "visiting relatives flow", and "going home" has become a common keyword for many people who work and live outside the home.

　　Step on the accelerator to the end, and the congestion at the provincial border will be alleviated.

　　According to big data, during Spring Festival travel rush in 2019, the national railways, highways, waterways and civil aviation sent a total of 2.98 billion passengers, which was basically the same as that in 2018. Among them, the railway sent 410 million passengers, an increase of 7.4%; 2.46 billion passengers were sent by road, down by 0.8%; The waterway sent 41 million passengers, the same as in 2018; Civil aviation sent 73 million passengers, an increase of 12%.

　　In recent years, the trend of diversification of transportation modes in Spring Festival travel rush has become more and more obvious. Trains, planes, cars, hitchhiking and other ways go hand in hand, which has alleviated the pressure of passenger flow during Spring Festival travel rush to some extent. It is worth mentioning that with the increase of income and the update of travel concept, many people have joined the team of driving home.

　　According to the consulting data of Ai Media, 47.9% of the netizens surveyed indicated that their willingness to travel by car during Spring Festival travel rush in 2019 was significantly improved.

　　Some analysts believe that, on the one hand, according to the data of the Ministry of Transport, in 2018, the mileage of new highways in China was 86,000 kilometers, including 6,000 kilometers of expressways and 20,000 kilometers of newly built and rebuilt provincial trunk highways. The highway has been built to the "doorstep", which provides convenience for many self-driving families.

　　On the other hand, the number of motor vehicles in China continues to increase, and cars are becoming the standard of life for many people, which provides conditions for self-driving travel.

　　Ai Media Consulting analysts said that people’s living standards have improved and the number of private cars has been continuously improved. At the same time, the country has strengthened highway construction, and the trend of self-driving travel during the Spring Festival is obvious. The diversified combination of roads, railways and aviation has become the general direction of Spring Festival travel rush’s travel structure adjustment.

　　It is worth mentioning that traffic jams have always been one of the pain points of self-driving in Spring Festival travel rush, and high-speed toll stations are the "hardest hit areas" of congestion. In Spring Festival travel rush this year, this situation will improve.

　　On December 12th, the Ministry of Transport held a special press conference on "Cancellation of Provincial Toll Stations of Expressway". According to Sun Wenjian, spokesman of the Ministry of Transport, the project of canceling the provincial toll stations of expressways has entered the final stage, and the conditions for canceling the provincial toll stations of expressways nationwide are basically met before the end of the year.

　　Specifically, in terms of engineering construction, the completion rate of the national highway entrance weighing detection system has reached 100%. On December 16th, the national highway entrance weighing detection will be fully implemented. The completion rate of the main line reconstruction of provincial toll stations reached 93.02%, and the main line reconstruction of the remaining provincial toll stations was completed before December 20 as planned.

　　Sun Wenjian said that in ETC issuance, as of December 10, the total number of ETC customers nationwide reached 185.4599 million, completing 97.17% of the total issuance tasks; The network communication link test and system function test have been completed, and it is expected that all the work of joint debugging and testing will be completed before December 20.

　　It is understood that the cancellation of provincial toll stations on expressways is not a cancellation of charges, but a change in charging methods. At the same time of dismantling the provincial toll stations, it is helpful to reduce the transit time of vehicles by technical means to realize fast payment without stopping when driving across provinces.

　　"After the withdrawal of the station, under normal traffic conditions, the average time for buses to pass through the provincial boundary was reduced from 15 seconds to 2 seconds, a decrease of about 86.7%. The time for trucks to cross provincial boundaries was reduced from 29 seconds to 3 seconds, a decrease of 89.7%. " Sun Wenjian said, "After the provincial toll station of the expressway is cancelled, the people will be truly realized ‘ Step on the accelerator to the end ’ The dream of ".

　　Customized buses, hitchhiking and other new favorites "internet plus" empower Spring Festival travel rush to go home.

　　Although Spring Festival travel rush hasn’t officially started, Li Yong’s homecoming WeChat group is already full of excitement. "Between the 10th and 15th, did anyone return to Anhui via Wuxi, Changzhou and Nanjing?" "Looking for someone by train on the 20th, waiting for 2, waiting for 1" & hellip; … Working in Shanghai and his hometown in Huainan, Anhui Province, he continued to pay attention to the information in the group, hoping to get on a bus and go home.

　　In fact, carpooling home is becoming a new choice for more and more young people in Spring Festival travel rush.

　　Hellobike’s "Big Data on Travel in the Spring Festival of 2019" shows that during the Spring Festival of 2019, the average carpooling distance of Hello was 126.7 kilometers, the average carpooling time was 143.3 minutes, and the average carpooling cost was 122.6 yuan, so long-distance travel became the main order for hitchhiking.

　　Among them, the age of hitchhiking passengers is mainly between 24 and 32 years old, and the proportion of post-80 s and post-90 s is 41.1% and 44.9% respectively, and post-90 s becomes the main force of hitchhiking.

　　Li Yiming, who works in Beijing, is a hitchhiker. Online booking and telephone communication confirmed that during the Spring Festival last year, he took two passengers back to his hometown of Tangshan through a ride platform.

　　"The two passengers paid a total of more than 300 yuan and shared the fuel and tolls." Li Yiming said, "We also had lunch together at the high-speed service station on the way. It’s my treat, not for anything else. I just think it’s quite warm and I can have a chat companion along the way."

　　In fact, "internet plus" has brought many changes to Spring Festival travel rush. During the period of Spring Festival travel rush, in order to meet the diversified needs of tourists, customized buses began to enter the market in some places. By combining online and offline, and booking trips in various ways, the customized bus is based on highway passenger transport, which plays a role in connecting railway and air traffic in series.

　　Ding Yifan, who lives in Hangzhou, told reporters that during her stay in Spring Festival travel rush in 2019, she experienced a customized bus for the first time. On the arrival floor of hangzhou east railway station, find the dedicated service desk of "Spring Festival travel rush Warm Bus". As long as you register your destination, the service staff will match it in time, and "Spring Festival travel rush Warm Bus" will send passengers to the door of the community as far as possible.

　　"It has not only the routes in the city, but also the custom-made lines for returning home, the special shopping line for the Spring Festival, the bus lines connecting transportation hubs, etc., which saves the trouble of queuing at the train station and solves the last mile of Spring Festival travel rush." Ding Yifan said.

　　Scan code through the gate, brush your face into the station, and purchase tickets by electronic one-click … … In addition to hitchhiking and customized buses, the empowerment of "internet plus" makes the service in Spring Festival travel rush more intelligent, efficient and convenient, and constantly refreshes the travel experience of passengers. There is reason to believe that in the future, people will travel more and more, and the way home during the Spring Festival will be warmer.

　　China Youth Daily China Youth Network reporter Cheng Honghe Source: China Youth Daily