On April 26, 2017, the launching ceremony of China’s second aircraft carrier was held at Dalian Shipyard of China Shipbuilding Industry Corporation. The picture shows that the aircraft carrier is slowly moved out of the dock and docked at the dock berth under towing.

　　Since the first domestic aircraft carrier was launched on April 26, 2017, it has attracted the attention of the whole world. This is another major milestone in the construction of the People’s Navy’s comprehensive three-dimensional combat force system in the open sea, which has laid an important material and technical foundation for accelerating the strategic transformation and development of "offshore defense and offshore protection" and taken another solid step towards building a world-class "blue-water navy".

　　As the first aircraft carrier designed and built by China itself, the domestic aircraft carrier is closely related to the Liaoning ship that was delivered to the navy for service on September 25th, 2012, but there are many major technical improvements, which just corresponds to the old saying — — The pupil outdoes the master.

　　The first domestic aircraft carrier was designed and built on the basis of the comprehensive restoration of the Liaoning ship. There are many similarities in appearance and structure between the two. They also adopt the layout of ship-based fighter planes with sliding takeoff and upturned flight deck. We should know that the aircraft carrier is a major symbol of the modern navy, and it is a large surface warship with the largest volume, the most complex system, the most comprehensive technology and the most powerful ability. China didn’t have any experience in designing and building an aircraft carrier in the past, but only repaired, refitted and continued to build a Liaoning ship. Did it fully master all the key technologies in designing and building an aircraft carrier? By building the first domestic aircraft carrier, comprehensive inspection can be carried out, which is also conducive to consolidating and strengthening the comprehensive support capability of the Liaoning ship. This also reflects the active, steady and steady development of weapons and equipment that China people have always followed.

　　On the road to the construction of China Navy’s aircraft carrier, Liaoning took the first step. The first domestic aircraft carrier consolidated and accelerated this step, connecting the past with the future in the technical research and capability improvement of aircraft carrier design and construction, and accumulating experience for building a larger aircraft carrier. In a few years, a large aircraft carrier formation flying the five-star red flag will surely sail in the coastal areas of Wan Li and the open ocean.

　　Aiming at sea and air three-dimensional operations

　　Many netizens called the first domestic aircraft carrier a "replica" of the Liaoning ship. In fact, the first domestic aircraft carrier achieved a comprehensive technical upgrade on the basis of the Liaoning ship, which is called "seemingly strong". The biggest difference between the two is that the functional positioning and mission use are very different.

　　The function orientation of Liaoning ship is firstly the research and test platform and training platform of aircraft carrier, and its main task is to complete a large number of research and test tasks of aircraft carrier and carrier-based fighters, and to carry out batch selection and training of carrier-based fighter pilots. After more than five years of exploration and training, the Liaoning ship has expanded to form a maritime formation combat capability. From the very beginning, the first domestic aircraft carrier was positioned as a large-scale aircraft carrier combat platform, which was a new starting point for the construction of the comprehensive combat force of China Navy aircraft carrier.

　　A large-scale combat platform at sea with carrier-based aircraft as its main weapon is also vividly called "floating airport at sea". On November 14th, 1910 and January 18th, 1911, respectively, the US Navy successfully carried out the technical test of taking off and landing an aircraft on a ship for the first time. The British navy is the first, successfully refitting the world’s first aircraft carrier in 1918, and has gone through more than 100 years of development. Looking back at history, the aircraft carrier completely replaced the battleship’s maritime hegemony in just over 20 years, and promoted the maritime combat from the "era of giant ship artillery" dominated by battleships and cruisers to the "era of sea-air three-dimensional missile warfare" dominated by aircraft carrier battle groups, carrier-based fighters and anti-ship missiles.

　　In modern maritime mobile operations, the position and role of aircraft carrier battle group are irreplaceable, and its comprehensive combat capability is mainly reflected in two major indicators: first, the number and quality of carrier-based fighters and airborne weapons; The second is the quantity and quality of warships and shipborne weapons allocated in the carrier battle group and the strength of formation combat capability.

　　Optimize the ship-aircraft adaptation performance.

　　More than 100 years ago, when the aircraft carrier came out, there were only propeller planes with piston engines. The aircraft structure was simple and the flight speed was slow, and the requirements for the carrier platform, that is, the aircraft carrier, were relatively low. After the end of World War II, the advent of carrier-based fighters with jet engines greatly promoted the upgrading of aircraft carriers, especially the rapid development of technologies such as catapult takeoff device, auxiliary landing system and arresting device. The types of carrier-based aircraft are also increasing, including fixed-wing fighters, rotary-wing helicopters, vertical/short-range take-off and landing aircraft, rotary-wing aircraft, drones and so on.

　　Carrier-based fixed-wing fighters play a crucial and decisive role in the combat effectiveness of aircraft carriers, and their quality and quantity are important indicators to measure the combat capability of aircraft carriers. Carrier-based fighters can be divided into three types in take-off and landing modes: one is catapult take-off and blocking landing; The second is to take off and stop the ship; The third is vertical or short takeoff and landing. The first domestic aircraft carrier adopts the second method, which has certain restrictions on its operational application.

　　Technically speaking, catapult takeoff is the best choice, which can maximize the operational effectiveness of carrier-based fighters. This requires overcoming the catapult technology. In the past, aircraft carriers in various countries have been using steam catapults. Ten Nimitz-class nuclear-powered aircraft carriers in the US Navy and the nuclear-powered aircraft carrier Charles de Gaulle in the French Navy all used steam catapults made in the United States. But the development direction of catapults is electromagnetic catapult. The first ship of the Ford-class nuclear-powered aircraft carrier of the US Navy has taken the lead in loading and using, and the research team led by Academician Ma Weiming of China Naval Engineering University is also studying this topic.

　　The full-load displacement of the first domestic aircraft carrier is several thousand tons larger than that of the Liaoning ship, and the sliding flight deck design is still used, but the design of the upturned angle of the flight deck has been upgraded and improved. The tilt angle of the flight deck of Liaoning ship is about 14 degrees, and the tilt angle of the flight deck of the first domestic aircraft carrier is reduced to 12 degrees. The main basis for this major technical improvement comes from a large number of flight test data accumulated by Liaoning ships and J -15 carrier-based fighters. The ship-to-aircraft compatibility between domestic aircraft carriers and J -15 fighters is more optimized than that of Liaoning ships, which is conducive to giving full play to the maximum operational effectiveness of J -15 fighters with skid-jump take-off.

　　Structural design is boldly abandoned.

　　In terms of structural design, the first domestic aircraft carrier was completely designed according to the standard aircraft carrier, which was different from the design concept and operational application idea of developing aircraft carrier (carrier cruiser) in the Soviet Union.

　　The predecessor of the Liaoning ship was the unfinished Varyag, which was the sister ship of the only carrier Kuznetsov in service in the Russian Navy, that is, the second ship of the third-generation carrier cruiser of the Soviet Union. The carrier cruiser of the Soviet Union is very different from the fleet aircraft carrier of the United States. The Soviet aircraft carrier has a small displacement, and there is no catapult take-off device for carrier-based aircraft. Usually, it is only equipped with about 24 carrier-based fighters, and its comprehensive capability is relatively limited. Only carrier-based fighters can not complete all air and sea combat tasks. Therefore, a certain number of long-range anti-ship missiles are equipped to form an integrated anti-ship combat capability of missiles and carrier-based aircraft. At the same time, it is also equipped with relatively complete long-range ship-to-air missiles and medium-and short-range air defense weapon systems.

　　In combat missions, the Soviet naval carrier mainly focuses on underwater operations, that is, protecting its own nuclear submarines and attacking enemy nuclear submarines, usually with about 15 anti-submarine helicopters. The US aircraft carrier mainly relies on carrier-based aircraft to "win the world". Carrier-based fighters complete air combat, sea (land) assault, electronic attack and other combat tasks. Early warning aircraft provide long-range warning and command guidance, and anti-submarine helicopters and submarines undertake joint anti-submarine missions. The aircraft carrier is not equipped with long-range offensive weapons such as anti-ship missiles, but only equipped with necessary short-range air defense weapon systems.

　　Kuznetsov-class aircraft carrier is equipped with a large number of ship-borne missile weapon systems, such as 12-unit SS-N-19 large-scale long-range anti-ship missile vertical launching system hidden under the flight deck, and 4 sets of 6×8-unit SA-N-9 long-range ship-to-air missile launching devices. The Liaoning ship dismantled the relevant devices of these missile weapon systems during the repair and continued construction.

　　The reason why Russian aircraft carriers are equipped with a large number of missile weapons is mainly due to their limited comprehensive combat capability. Su -33 of the Russian Navy and F/A-18E/F of the US Navy are both heavy carrier-based fighters. Although Su -33 is slightly superior to F/A-18 in some tactical and technical performance, Su -33 takes off in a sliding mode and F/A-18 takes off in a catapult mode, and its comprehensive combat capability is better than Su -33. In addition, the Kuznetsov-class aircraft carrier can only carry about 40 carrier-based aircraft, including 24 Su -33 and Su -25 carrier-based fighters, and its combat capability is far less than that of the Nimitz-class aircraft carrier of the US Navy. Therefore, the Russian army had to make the aircraft carrier have both the long-range anti-ship missile attack capability of heavy cruisers and the air defense interception capability of medium and long-range ship-to-air missiles.

　　Setting a large missile launcher under the flight deck will have a great impact on the use of carrier aircraft. If a missile is launched, the flight deck needs to be emptied before the missile launcher can be opened, and then the carrier-based aircraft cannot take off. Russian long-range anti-ship missile is huge and vertically installed under the flight deck, which needs to occupy a lot of internal space and will also have a negative impact on the hull structure design. The main weapon of the standard aircraft carrier is the carrier-based fighter. Below the flight deck is a large transparent hangar for the storage, maintenance and repair of the carrier aircraft. The first domestic aircraft carrier is no longer equipped with anti-ship missile launchers, and the hangar is larger and can carry more carrier-based fighters.

　　Information ability is advancing by leaps and bounds

　　As a large-scale maritime mobile airport, an aircraft carrier needs to have both navigation and aviation functions in order to effectively complete the operation and use of various types of carrier-based aircraft, and it is inseparable from various uses and advanced electronic information equipment, including navigation electronic information systems to ensure maritime navigation, aviation flight control electronic information systems to ensure the take-off and landing of carrier-based aircraft, electronic information systems to command and guide carrier-based aircraft to perform air combat tasks, and electronic information systems such as ship-based air defense, sea defense and electronic alert, as well as air-sea combat mission formation. Although the body and volume of the aircraft carrier are larger, it is also a huge technical problem to install these electronic information equipment in a limited space because of the huge number and types of electronic information systems.

　　The carrier’s shipborne electronic equipment includes formation combat command information system, navigation and avionics information system, etc. On the basis of the trial installation and use of Liaoning ship, the first domestic aircraft carrier was further improved. For example, the improved large-scale active phased array radar installed above the starboard ship island has been widely used in a new generation of guided missile destroyers, with advanced performance and increasingly mature technology, and accumulated more and more experience. Its comprehensive performance is far ahead of that of Russia, with longer air detection distance and stronger ability to detect air targets. It can detect and distinguish hundreds of air targets at the same time, and its ability to command and guide air defense interception is stronger. This will help to improve the air defense capability of the aircraft carrier formation and the ship.

　　At present, the first domestic aircraft carrier is nervously carrying out the outfitting project after launching. With the decrease of "scaffolding" on the ship surface, the date of trial flight of domestic aircraft carrier is approaching gradually. I believe that in a few years, the first domestic aircraft carrier will be transformed into the second aircraft carrier in the service of the People’s Navy, and the goal of China Navy’s "blue-water navy" construction into a distant ocean is gradually becoming a reality.

　　In April 2018, the national education department officially released the Action Plan of Education Informatization 2.0, which provided the implementation path for China’s education informatization in a new era. At present, technologies such as mobile Internet, big data, artificial intelligence and deep learning are undergoing fission iterative upgrading. How to make these technologies better empower education is becoming a new application exploration topic.

　　For example, although the information technology introduced in different regions has different forms, many school administrators and front-line teachers feel that it has little effect. On the one hand, these methods can’t completely reduce the burden and increase the efficiency of the front-line teachers’ "teaching", and the work of preparing lessons, teaching, correcting homework and communicating between home and school is still heavy. On the other hand, the principal, as a "manager", lacks effective data support and dynamic monitoring mechanism for teaching situation. In addition, parents also lack effective tools to grasp their children’s academic situation in real time, which leads to the fault of home-school communication. The current information tools can’t effectively realize the coordination of teacher teaching, campus management and parents’ supervision.

　　Homework box is a leading intelligent education technology company in China, and has been committed to solving the pain points and difficulties of education by technical means. Since its establishment four years ago, the homework box has cut into the teaching scene from the initial homework tools, accumulated a huge amount of data resources and rich AI teaching content, and finally grew a "cloud-like school-level service" covering the whole scene of campus teaching in this soil. At the same time, it has also embarked on a "box road" to practice the "Education Informatization 2.0 Action Plan".

　　In March 2018, Dagang No.2 Primary School in Tianjin Binhai New Area. A "special" operation competition is in progress: there is no paper and pen in the audience, each child is holding a mobile device to click quickly, the students seem to be playing games as easily, and the teachers have no complicated marking process. After the competition, the scores of the participating students in the whole school are displayed immediately.

　　In order to improve students’ computing ability, cultivate their sense of numbers, mathematical thinking and good mathematical study habits, Dagang No.2 Primary School holds several interesting learning activities every semester. In the past, competitions were all answered by paper and pencil, which required teachers to spend nearly a month preparing, composing papers, marking papers and marking them. But now, through the cloud-like school-level service platform of the homework box, the system can intelligently compose questions, automatically correct them, analyze them in real time, and generate an analysis report of learning situation, and complete the whole competition in one day.

　　In this competition, students practice while playing, complete the competition in a relaxed state and get motivated; Teachers’ Day saves basic working time, analyzes the learning situation of each student through accurate big data, and carries out personalized teaching with the help of mobile Internet tools; The headmaster learned the teaching situation of each grade and class through the analysis report of learning situation. The leaders of the teaching and research section of the education department in Dagang District of Tianjin and the heads of more than a dozen other schools observed the activities of Dagang No.2 Primary School on the spot. The application of Internet technology and the construction of interesting learning scenes gave visitors a new understanding of education in the new era.

　　grow

　　Derive the teaching ecological platform from the homework scene.

　　Cloud image school-level service is an intelligent campus solution based on the school, which covers four functional modules: intelligent teaching, academic data, teaching resources and communication between home and school, providing schools with more accurate teaching data, more comprehensive teaching resources and more efficient teaching and educational services. A complete campus teaching scene ecology from homework, lesson preparation, teaching to teaching management is built, aiming at solving the teaching pain points faced by schools in K12 field from the practical application level with the help of Internet platform and artificial intelligence technology.

　　The "intelligent teaching" module in cloud image school-level service covers three core teaching scenarios: homework, evaluation and competition. Through the homework box APP, teachers can intelligently arrange homework with one click according to the type of questions, difficulty, quantity of questions, knowledge points, differences in students’ abilities, etc., and the system will automatically correct it and generate an analysis report on learning situation. In addition, the homework box can accurately push the error-prone questions, review questions and test questions that are more suitable for students in this class according to the class history, so that the teaching can be truly digitized and personalized.

　　With the help of the cloud image school-level service platform, the school can initiate phased teaching quality evaluation, and after the evaluation, the "Analysis Report of Learning Situation Data" from class to individual can be automatically generated through "Learning Situation Data". Solve the difficult problem of "cooperation between teaching and management" with "learning situation data" and "intelligent teaching" Jia Xiaoming, founder and CPO of Homework Box, said: "Cloud-like school-level service is completely grown from the soil applied by front-line teachers and students. We started from the earlier homework scenes, and relying on massive data and self-developed intelligent teaching content, we gradually opened up various scenes in school teaching, and connected teachers, students, schools and parents through technical means, thus effectively solving practical problems in teaching management. This is the unique growth mode of Internet products. "

　　evolve

　　Let the machine make a better teacher

　　Cloud image school-level service is like a teacher’s "AI teaching assistant". In the past, many teachers were trapped in a huge amount of complicated daily work, "assigning homework for 10 minutes and correcting homework for one night". Coupled with all kinds of communication with parents and students, there is no time to deeply understand the learning situation of each student, and it is even more difficult to think about how to help children grow up outside of "teaching".

　　Wen Chuanmei, a teacher from Liwang Experimental Primary School affiliated to Jilin University in Changchun, has been using homework boxes to arrange homework for students for many years. In the "internet plus" education, Mr. Wen has a lot of experience: "With the help of Internet teaching tools, students’ mastery can be understood according to the accuracy of each unit. By comparing the class data with the whole province, teachers can analyze and understand the completion degree and level of each unit and each child’s learning objectives, so as to provide timely hierarchical counseling and greatly improve the efficiency of classroom teaching."

　　Yunxiang school-level service is also equipped with rich "teaching resources", including micro-lessons based on the granularity of small knowledge points, live lessons by famous teachers, and AI courses independently developed by homework boxes, which has created a professional advanced online school and resource library for teachers. "It’s like your own ‘ Robot ’ Like teaching assistants, it really reduces the burden and increases efficiency for the work of front-line teachers, "said teacher Wen Chuanmei metaphorically.

　　energize

　　Let children learn better, let children learn better.

　　In the cloud image school-level service, the homework box stimulates students’ interest in learning through the construction of interesting learning scenes, and makes children fall in love with learning from their nature. Jing Shigen, a teacher from Meishan No.1 Primary School in Nanjing, Jiangsu Province, said: "Children like this learning form of doing homework and testing on the Internet platform, and their grades will naturally get better and better, and they will develop in the direction we expect."

　　Changchun Jidawang Experimental Primary School has achieved remarkable results in exploring "internet plus" education. Recently, in the national WMO Olympic Mathematics Competition, five students from Mr. Wen Chuanmei’s class participated in the competition, and achieved gratifying results of one gold medal, two bronze medals and two excellent prizes.

　　The homework box also takes the lead in introducing the functional modules of "anti-addiction" and "guided access" in the industry. The former prevents children from using mobile phones for a long time through the setting of "physical strength value" and usage time. The latter can restrict access to other functions except the homework box through parental lock, and ensure a green, healthy and efficient online learning environment for children.

　　connect

　　Let parents participate in growth.

　　In the traditional teaching scene, many parents are not clear about their children’s learning progress and have difficulties in counseling. For schools, it is difficult to ensure the communication effect by using WeChat group to contact parents. The cloud image school-level service platform of homework box provides targeted solutions to the problems of home-school communication and home supervision: the information in the home-school communication function is automatically and permanently retained and can be reviewed at any time; In addition, home and school can interact in many ways, and teachers can initiate notices, votes, discussions and questionnaires with one click to enhance the closeness and diversity of home-school communication.

　　The communication between teachers and parents is designed with the prompt function of "read" and "unread" messages, which improves the efficiency of one-to-one and one-to-many communication. Parents can also check their children’s homework, exam scores, academic data and other information through the parent side of the homework box to clearly know their children’s learning situation.

　　The future has come: let AI empower education

　　Since its establishment four years ago, the homework box has cut into the daily teaching scene from the digitalization and data of homework, providing mobile homework tools for teachers and students to reduce burdens and increase efficiency. Up to now, homework boxes have entered 70,000 schools in more than 400 cities in 31 provinces, municipalities and autonomous regions, and more than 30 million primary and secondary school teachers and students are using homework boxes to arrange and submit homework. Every day, there are 3.7 million users active on the platform, and more than 100 million pieces of learning behavior data are generated. Massive data accumulation, coupled with the advantages of tool attributes and content research and development, has extended the homework box from the initial homework scene to a complete teaching scene ecology, and has been able to "grow" a cloud-like school-level service platform.

　　In the Action Plan of Education Informatization 2.0 released this year, the state clearly proposed to build a smart learning support environment and promote technology development and practical application. Vigorously promote intelligent education, promote the whole process application of artificial intelligence in teaching and management, accelerate the reform of teaching methods by using intelligent technology, and explore a wide, flexible and intelligent new environment for education and teaching.

　　The homework box will continue to adhere to the concept of "making education better because of science and technology", promote the application of technologies such as big data, virtual reality, artificial intelligence and deep learning in the field of education, and constantly iteratively upgrade cloud-like school-level services, so that AI can empower the campus, science and technology can empower education, and education can make everyone’s future.

At 23: 30 pm Beijing time on October 29th, the 10th round of the 2023-24 Premier League ushered in the first Manchester City Derby of this season, and Manchester United played against Manchester City at Old Trafford Stadium. In the first half, Hoyle pulled Rodley down and sent a penalty, and Harland took the penalty and hit it; In the second half, Harland scored twice with another goal, and before the end, he assisted Foton to seal the victory. Onana made many dives in the audience. In the end, Manchester City beat Manchester United 3-0 away.

This game is the 191st Manchester City Derby in history. Before the game, a series of activities were held at Old Trafford Stadium to commemorate the legendary Sir Bobby Charlton.

In the second minute, Manchester United stole the ball in midfield, and McTominay took the ball to the front of the penalty area and shot it with his left foot. The ball was not strong enough for Edersen. In the 8th minute, Rodley in the frontcourt hoisted the ball into the right side of the penalty area, Walker put it in front of the baseline and knocked the ball across the middle. Foden’s header was saved by Onana.

In the 12th minute, Grali took the ball to the left side of the penalty area, but he passed it back to his opponent in an inverted triangle. Hoyle took the ball and pushed it forward. Unfortunately, his teammates responded too slowly, and the fast break turned into a sports war. In the 15th minute, Foton sent a straight plug from the midfield, and Onana rushed out of the penalty area to clear the ball before Harland did.

In the 20th minute, Manchester City kicked the left tactical corner, Grali grabbed the ball from the right side of the restricted area and shot the far corner, and Onana saved the ball.In the 26th minute, Manchester City won a free kick in the frontcourt, and the ball was hoisted into the penalty area. Rodley, who was fighting for the landing point, was pulled down by Hoyle, and the referee awarded a penalty after watching VAR.

The penalty was taken by Harland, who shot his left foot low in the lower right corner of the goal and tricked Onana into scoring the ball. Manchester City led Manchester United 1-0.

In the 31st minute, Manchester City made a mistake in the frontcourt return, and Hoyle got the ball and got a half-single-handed chance. After he passed the goalkeeper, he didn’t have an angle to shoot, and then he crossed the middle. Unfortunately, B shot high from a small angle.

In the 36th minute, Manchester City made a cross from the right in the frontcourt. Maguire’s header in the penalty area was on Dallot, and he was almost attacked by Grali. In the 37th minute, Manchester City got a free kick from the left outside the penalty area, and Alvarez shot directly, and Onana saved the ball.

In the 45th minute, Manchester United made a long pass from the right side of the midfield. At the top of the arc, McTominay stopped the ball and turned to volley. Edersen saved the ball with one hand. In the 45th+4th minute, Seat B made a forward pass on the left baseline of the restricted area, and Harland headed Taishan in the small restricted area, and Onana flew to dedicate himself. At the end of the first half, Manchester City temporarily took the lead.

In the second half, Yi Bian fought again. In the 48th minute, B Fei received a tactical corner kick in front of the penalty area and made a long shot. Edersen saved the ball. In the 56th minute, Grali took the ball to the far corner from the left side of the restricted area, and Onana saved the ball sideways.In the 50th minute, the B-seat caught the ball and came to the bottom line on the left side of the penalty area. Harland in the middle headed the goal. This time, Onana had no choice. Manchester City led Manchester United 2-0.

In the 58th minute, Alvarez directly blocked the left side of the restricted area at the top of the arc, and Grali made a small-angle volley, and the ball missed the far post. In the 66th minute, Seat B shot with his left foot in front of the penalty area, and Onana hugged the ball. In the 69th minute, Rachford moved forward into the restricted area, and after receiving a long pass from the midfield, he shot low from a far corner at a small angle, and the ball missed slightly.

In the 71st minute, Grali sent a straight plug in the frontcourt, and Harland caught the ball to form a single knife. His volley on the left side of the restricted area was blocked by the attacking Onana. A minute later, Lindelov and Onana’s continuous mistakes almost gave Manchester City a goal.

In the 80th minute, Rodley took the ball and made a long-range shot in front of the restricted area. Onana saved the ball sideways, Harland got the ball on the left side of the restricted area and then passed it horizontally. Foden in the middle of the road easily shoveled the empty net and Manchester City led Manchester United 3-0.

In the 82nd minute, Manchester City made a cross from the left side of the penalty area. Before the penalty spot, Foden turned his back and hit the door, and the ball only missed a little.

In the end, the whole game ended and Manchester City beat Manchester United 3-0.

Li Jianguo, general manager of Midea Building Technology Elevator Company, used the human body as a metaphor to introduce the technical points of Digital Elevator: "For example, the application of AI graphic image recognition, voice acquisition technology, new infrared, millimeter wave and other human perception technology sensors, laser ranging technology, etc. is to improve the perception ability of the elevator; The application of CPU chips with higher computing power, big data analysis, artificial intelligence, deep learning, neural network and other technologies improves the calculation and analysis ability of the algorithm, which makes the elevator smarter and smarter. " It is understood that before leaving the factory, every LINVOL elevator has to undergo a total of 513 quality tests of the whole elevator and its components, such as performance, protection, structure and function. The mechanical safety protection system is combined with the electrical safety protection design, and eight safety devices, such as emergency braking system, door interlock and speed limiter, are adopted to prevent elevator accidents to the maximum extent. On the software side, we can monitor the elevator’s operation status in real time through big data and Internet of Things technology, analyze the elevator’s operation status in time through big data logic algorithm, and transmit it to the elevator management platform through the network for intelligent analysis and preventive maintenance. In addition, Midea is equipped with AI, sensors and Internet of Things technologies for every digital elevator. The camera of AI can automatically identify dangerous goods and dangerous ladder riding behaviors, and initiate corresponding measures to prevent problems before they happen. As a part of the building, intelligent elevator can also improve the operation efficiency of the building. Li Jianguo introduced,The digital platform of iBUILDING in UILDING can automatically identify passengers’ identity information through the elevator eye system, and automatically guide people on nearby floors to take a ride by robot dispatch, so that passengers can be sent to the destination floor without button contact. "It turns out that the elevator stops in the middle during the peak period of use, and the single running time is long; Now, through a series of algorithms and digital intelligent applications, the single running time of the elevator can be shortened, running more times, and delivering more people to the destination floor. " At the same time, the intelligent passenger flow analysis system can also realize the priority of dispatching elevators on peak floors, shorten the operation efficiency of elevators by about 2/3, improve the comfort, and at the same time effectively reduce energy consumption, save energy and reduce carbon.codaBorrow a passage from A Tale of Two Cities by Dickens as the conclusion of this article: This is the best time and this is the worst time; This is the age of wisdom, this is the age of stupidity; This is the period of faith, this is the period of doubt; This is a bright season; This is the dark season; This is the spring of hope, and this is the winter of disappointment … Although the rivers and lakes of elevators in China are still under the feast of foreign investment, I believe that with time, domestic elevator brands will surely rise against the trend and flourish in the wind! Each platform has the same name. If you like our story, please share, collect and forward it.

The Shanghai Scenic Area became popular due to the "heart black", and the ordinary bottle of water was sold for 20 yuan, and the tyrants dare not go.

Shanghai is a modern city with a high popularity in my country. Many young people who pursue their dreams have gathered here, and many financial leaders have gathered. Therefore, it has also become a place where many people yearn for.

Therefore, many people do not work hard here, but also want to come here to see the feeling of big cities, so this year attracted countless people to travel here, but among many tourist scenic spots, there is a special one specially The existence, it became popular because of the "black heart" of the scenic area. Ordinary bottle of water was sold for 20 yuan, and local tyrants did not dare to go.

And this is the Shanghai Disneyland, which falls in Pudong New District. It officially opened on June 16, 2016. It is the first and largest amusement park in Mainland China. Fantasy park. Therefore, because of its popularity here and carrying many people’s childhood, it has always been where everyone dreams of going to.

But in such a place, not everyone can afford it. Among them, because it covers an area of ??1.16 square kilometers, it contains 7 theme plates. If tourists are playing, at least at least two days of time budget.

In addition, the problem that makes tourists feel difficult is that the price of each of each of the play projects here is particularly high, and the hotels in the scenic area are high. It is said that the off -season also requires 1,000 yuan to base for one night. Moreover, it is even more. Not to mention that during the peak season, it is difficult to find a room, so it has become a place where many people are expected.

And there are many disgusting unwritten rules, such as not to bring food and drinks, so tourists have to consume inside, but the price is high. For example Simple food also requires hundreds of budgets, coupled with hotels, tickets, fares, and other miscellaneous fees. This trip, there is no tens of thousands of budgets, I am afraid it is difficult to play happily.

However, the "black heart" place is still maintaining a scene where people come and go, and many people should be surprised! However, it is not difficult to guess that many people are actually willing to accept such a price, but the positioning of Disneyland is very high -end. In addition, the amusement facilities in it are really good, so they can attract everyone to play inside and willingly Consumption.

It’s just that ordinary people are more heartbroken! After all, I am not willing to spend so much funds on it. In the end, I did not get anything except for memories and happiness.