分类： hanzhen

　

　

In the details of 2023 Dodge Challenger SRT Hellcat, the middle net and the lower air intake of the new car are also painted in black, and there is a unique logo of SRT on the side of the middle net. In terms of wheels, SRT Super Stock adopts a set of 18x11J (18 inches in diameter and 11 inches in width) rims, which are the same as those of challenger SRT Demon, and is matched with the NT05R linear acceleration special tires with 315/40 R18 specifications, so that the car has three times the grip of SRT Hellcat models. In terms of braking, the front wheel of the new car is equipped with an upgraded Brembo four-piston caliper and a 14.2-inch front brake disc 9p.

From the front of the 23 hellcats, the two headlights are as sharp as eagle eyes, and the flexible lines of the whole body overflow with an aura. If you like passion, sports cars and speed, this Dodge Challenger wide-body red-eyed cat is the best choice.

The tail wing added above the rear of the wide-body red-eye cat of 23 Dodge Hellcats improves its stability at high speed, while the bottom spoiler and large-caliber double-tail row more thoroughly demonstrate its powerful performance. The lines on the side are more rough and overbearing broken lines, which are very muscular. They are equipped with 20-inch Group2 alloy wheels and NTOS racing tires, which have excellent grip.

Parallel Challenger 6.2TSRT Hellcat can be said to be the most powerful American muscle car in the domestic parallel imported car market. At present, there are fewer and fewer muscle cars in the traditional sense on the market, and all models have gradually developed into sports coupes that pursue balanced performance.

The length, width and height of the 2023 Dodge Hellcat SRT are 5027mm, 1923mm and 1461mm, respectively. From the side photos, you can more intuitively understand its slender body design. The 20-inch granite crystal aluminum alloy wheel is matched with the 20-inch all-season performance tire, aiming to make the car have better dynamic performance. If a friend thinks that this design is not personalized enough, he can choose the side stripes of the challenger car body to further improve the recognition of the car.

The 2023 Dodge Hellcat further strengthened its image of high-performance version in the interior part, and the TRX logo everywhere in the center console and seats is the best example.

　　On May 7, Putin was sworn in as President of the Russian Federation for the fourth time. This has brought Russia-US relations at the freezing point into the era of "Putin 4.0". Economic sanctions, military containment, and regional games have become an unavoidable whirlpool in Russia-US relations. Some analysts said that in the short to medium term, Russia-US relations are hard to surprise and may even continue to deteriorate.

　　The next six years will be a great test for Putin and Russia in charge. Can this big ship named "Russia", with Putin at the helm, break the ice between Russia and the United States and realize the rhetoric of "give me 20 years and return you a strong Russia"? Putin gave a tough guy’s answer: now Russia is like a phoenix reborn from nirvana. Nothing will prevent Russia from determining its own future, and no one can stop the "Russian" ship from moving forward. Self-reliance is the last word.

　　Moscow, May 7, 2018, Russian President Vladimir Putin speaks at the inauguration ceremony held in Moscow Kremlin.

　　In the face of the US "sanctions storm", Russia concentrates on practicing its internal strength and regards economic development as its core driving force.

　　Since the Ukrainian crisis in 2014, the United States and Europe have successively imposed economic sanctions on Russia. Especially since US President Trump took office in 2017, he has set off a series of "sanctions storms" against Russia. Western sanctions have made the external environment for Russia to achieve its own development and breakthrough more and more severe.

　　Under the circumstance that "sanctions" seem to have become the background color of Russia’s relations with the United States and Europe, how Russia uses its existing resource advantages to solve the most urgent internal development problems is a major problem that Putin will continue to solve in his new term. At present, although the Russian economy has improved slightly, it still faces great challenges.

　　In his inaugural speech, Putin pointed out that it is necessary to develop the economy, pay attention to internal affairs and people’s livelihood, and honor pre-election promises. For example, to implement reform measures, activate economic vitality and achieve economic and technological breakthroughs, especially to enhance Russia’s competitiveness in key areas, increase investment in infrastructure construction, accelerate the introduction of digital technology, promote urban and rural modernization, and improve social welfare.

　　Alexei Mu Xin, director of the Russian Political Information Center, believes that the conflict between Russia and the United States is an economic conflict, not a war conflict, and both sides have suffered certain losses. He said that since the Ukrainian crisis, the United States has used sanctions to try to launch an economic "blitzkrieg" against Russia, expecting Russia to be soft under sanctions and comprehensive pressure and accept American conditions. Facts have proved that the American attempt has failed.

　　In response to the US military containment, Russia "shows muscles" strongly, but it has not given up the dialogue channel.

　　Almost at the same time that Putin began his fourth presidential term, US Naval Operations Secretary John Richardson said on the 4th that he would restart the US Navy’s Second Fleet, which was dissolved in 2011, in order to curb the expansion of Russian maritime power and deal with Russia’s security threats.

　　In fact, Russia’s military ability to resist foreign aggression is relatively strong. It has more resources to exert its military power and arouse the fear of the other side than to confront the United States and Europe economically and diplomatically, and it is relatively easy.

　　Putin’s State of the Union address this year showed a series of Russian latest military scientific and technological achievements in a long space, which not only shocked the United States, but also shouted to western countries that its economic sanctions and military containment against Russia "didn’t work".

　　Curtov, editor-in-chief of Russia’s National Strategic Issues magazine, said that in view of the fact that the United States regards Russia as its main strategic competitor, its policy toward Russia is becoming increasingly tough, and it is engaged in political and military confrontation with Russia, as well as the development of the situation in Syria, in order to cope with this situation, Russia may spend huge sums of money on national defense. Curtov said that although Russia has made great achievements in the fields of aviation, space and weapons, it has not developed enough in the fields of electronic information, which makes it impossible for Russia to win quickly and with little damage in the face of military conflicts. Moreover, in the short to medium term, such conflicts between Russia and the United States will continue.

　　In 2010, Russia and the United States signed a new version of the Treaty on the Reduction and Limitation of Strategic Offensive Arms, which set a new upper limit for the strategic nuclear weapons of the two countries. The treaty came into force in February of the following year and is valid for 10 years. Mu Xin believes that the further development of the Russian-American conflict may lead to the failure of the negotiations on updating this treaty.

　　Russia is also actively seeking dialogue in the face of the US’s artificial hostility towards Russia. Russian Foreign Minister Lavrov said on May 3, 2018 that if the United States can match its words and deeds on some issues, then Russia is willing to negotiate with the United States on the arms race and other global challenges.

　　In regional conflicts and great power games, Russia has actively carried out multilateral diplomacy and demonstrated its geopolitical ambitions.

　　In recent years, the practice of international affairs has proved that the handling or solution of some international problems cannot be separated from Russia’s active participation. Washington post said that Putin’s foreign policy reflected the rising geopolitical ambition of Russia. In addition, according to the latest poll released by Russia on the 7th, most Russian citizens believe that Putin’s main achievement is to restore Russia’s status as a great power.

　　Mu Xin believes that despite the constant regional game between Russia and the United States, Russia-US relations are unlikely to change in the short term, but Russia has made significant changes in other diplomatic directions and actively enhanced its influence. In Europe, Russia will work closely with some European countries including Germany. He believes that different from the attitude of most NATO members towards Russia, some European countries prefer a moderate policy of "looking north", so Russia will resume and strengthen contacts with these countries.

　　In the Middle East, Russia may strengthen its ties with Israel. As an important participant in Middle East affairs, and with the help of close cooperation with Iran, Russia can play a role as a link between Iran and Israel. Around the conflict between the Iranian nuclear deal and the United States, Israel and Iran, Russia can mediate and avoid the escalation of the conflict between the two sides.

　　In East Asia, Russia will further strengthen cooperation with China. At the same time, strengthen contacts and business contacts with Japan, South Korea and Vietnam. Relations with India and Indonesia are also an important part of Russia’s Asian policy, and strengthening cooperation with eastern countries may be one of the characteristics of Russia’s foreign policy in the next few years.

　　The next six years will not be easy for Putin and his team. However, as Putin emphasized, a difficult test is a springboard and a brand-new starting point for Russia’s development.

　　(Compilation: Wang Yinuo’s written materials come from: Xinhuanet, People’s Daily, Reference News, Global Times, Zhongxin.com, Overseas Network, etc.)

　　Xinhua News Agency, Beijing, January 12th, by New Media Specialist Question: Violation or innovation? Behind the controversy caused by in-service teachers’ paid online teaching

　　Xinhua News Agency "China Net" reporter Fu Guangyu Liang Tianyun

　　Is it illegal for in-service teachers to teach online for free? How to supervise teachers’ teaching behavior in the internet age? Recently, the Chinese teacher of a middle school in Jiangsu resigned because he was reported to have opened a charging class online, which triggered a heated discussion among netizens. The reporter of "China Netscape" learned that under the background of "touching the net" upgrade in the field of education, relevant supporting policies should be further clarified and improved, so as to build a platform for teachers to realize their own value, and at the same time, let more students get the opportunity to choose high-quality resources.

　　On-the-job teachers’ "paid online courses" resigned after being reported, which caused heated discussion.

　　A few days ago, a middle school Chinese teacher in Jiangsu resigned from the public school where she taught and became a full-time network teacher. One of the reasons why she made up her mind to quit public office was that she was reported to have "paid teaching in violation of regulations" when she opened a charging class online.

　　In an interview with the media, the teacher said that her online teaching was completely open, and her real name and real image were also used. "All my courses are open, and the fees of the platform are for the whole country or even the whole world. I get the labor remuneration I deserve. I use my spare time to attend classes and use my home computer and network, which does not occupy any resources of the school or affect my job. The online class platform invited me to give a special lecture. What’s the difference between this and me writing a magazine column and the magazine paying me a manuscript fee? "

　　The reporter found that "paid online teaching" has been sought after by many students and parents in recent years. No matter which subject, you can listen to online courses as long as you pay the corresponding fees. However, among the teachers who teach online, in addition to full-time tutors, there are also some teachers in public schools. Some students and parents are worried that public teachers’ participation in online make-up classes will delay normal teaching activities.

　　"Online teaching is just a different channel for teaching. As long as it is paid, it is paid to teach." "It is difficult to balance public and private. As a public school teacher, it is inevitable that people will talk about it. Within the system, we must abide by discipline and rules. " Netizen "Erqilaore" commented.

　　But some netizens expressed their understanding. "As long as the teacher does not affect the normal teaching work of the school, it is understandable to teach online after class." "It is better than those who secretly let students make up lessons at home."

　　It is still difficult to supervise in-service teachers’ paid online teaching.

　　The "Regulations on Prohibiting Paid Make-up Classes for Primary and Secondary Schools and In-service Primary and Secondary School Teachers" issued by the Ministry of Education in 2015 clearly stipulates that it is strictly forbidden for in-service primary and secondary school teachers to organize, recommend and induce students to participate in paid make-up classes inside and outside the school; It is strictly forbidden for in-service primary and secondary school teachers to participate in off-campus training institutions or paid remedial classes organized by other teachers, parents and parent committees. So, is it illegal for in-service teachers to teach online for free?

　　The education authorities in many places said that in-service primary and secondary school teachers charged a certain fee for online teaching, so they were suspected of making up lessons with compensation. However, because there was no online teaching form before, there was often a lack of corresponding identification and handling basis for such situations.

　　Chu Zhaohui, a researcher at the Chinese Academy of Educational Sciences, believes that the current policy document does not clearly regulate online education and online paid remedial classes, and cannot keep up with the growing situation of online education, resulting in a difficult grasp of the boundaries in the implementation process. "First of all, we must clearly define what is paid remedial classes. What should really be banned is that some teachers should not speak well when they are in class at school, so that students can pay for remedial classes after class. "

　　A person in charge of an online education network platform told reporters that in-service teachers’ online lectures will be relatively low-key, such as using "so-and-so teacher" instead of real name, and the images of lectures will be processed to some extent.

　　The relevant person in charge of the Education Supervision Office in Haidian District of Beijing said that compared with the traditional way, online teaching is still a new thing, and it is difficult for the competent authorities and schools to inspect and supervise it. On the one hand, there is no clear definition of online teaching in the current rules and regulations; On the other hand, its mode of communication is more flexible. For example, teachers can set up WeChat WeChat official account to give lectures without reporting to the higher authorities for approval, while parents and students can pay selectively by way of "rewarding".

　　Further clarify the boundary and promote the equalization of educational resources

　　On the one hand, many students want to eat a little food after studying in class, and on the other hand, some in-service teachers want to have more channels and platforms to realize their own values. In the era of "internet plus", online learning has become an increasingly important way.

　　The reporter learned that the "Beijing Digital School" invested and operated by the Beijing Municipal Education Commission organized famous teachers to record "Cloud Classroom", covering all grades and disciplines of primary school, junior high school and senior high school. All students can log in and choose their own learning content, and teachers can also upload courses. In November last year, Beijing also issued the Open Online Tutoring Program for Middle School Teachers in Beijing (2016-2020), which stipulated that in addition to teachers at school, every student will also be equipped with free online teachers and enjoy the "double-qualified" service.

　　Li Yi, deputy director of the Beijing Municipal Education Commission, said that unlike teachers’ paid tutoring and paid remedial classes, teachers’ open online tutoring is led by the government and aimed at all students. The purpose is to pay attention to the balance of education, introduce high-quality intellectual resources through the Internet, and let students have actual access, thus promoting the equalization of educational resources. To standardize teachers’ online teaching, industry insiders suggest that, first, relevant departments should make clear provisions on teachers’ participation in online teaching, establish a reasonable teacher identity supervision system, and further clarify the relationship between public school teachers and market education institutions. The second is to strengthen the management and guidance of commercial online education institutions to promote their formal development. Third, it is necessary to strengthen the construction of public online education platform and reflect public welfare.

　　"In the Internet age, education is also undergoing transformation. Traditional teaching methods have expanded the scope and content of classroom teaching with the help of Internet channels, so that quality educational resources can benefit more students. " Chu Zhaohui said that on the basis of professional research, teachers who are excellent and "have the ability to teach" should be selected to realize their value through legal and legal channels. We can also encourage good teachers to give lectures on the educational public welfare network platform through government purchase, so as to benefit the students.

　　　　　　 CCTV News:October is drawing to a close, and a number of new regulations will be implemented from tomorrow. Buying insurance, registering domain names, and purchasing tickets for high-speed trains will all usher in new changes.

　　　　　　 New regulation 1: it is more "insurance" to buy insurance when "double entry" is insured.

　　　　　　 What is double recording? That is, when insured, audio and video recording. According to the interim measures for the retrospective management of insurance sales behavior implemented on November 1, the sales behavior can be replayed, important information can be inquired, and the responsibility for problems can be confirmed.

　　　　　　 New regulation 2: the registration of domain names requires real-name institutions to have the responsibility of verification.

　　　　　　 In order to crack down on domain name fraud and abuse, the Internet domain name management measures will be implemented on November 1, stipulating that domain name registration service agencies should require domain name registration applicants to provide true, accurate and complete identity information of domain name holders, and verify the authenticity and integrity of the information. Institutions that violate the measures will be subject to administrative penalties and will be recorded in credit files.

　　　　　　 New regulation 3: Buy high-speed rail tickets and pay by WeChat.

　　　　　　 In November, the railway department will gradually launch the WeChat payment function of Internet, station window and ATM self-service ticket vending machine to further enrich the payment method of high-speed rail ticket purchase. At present, the railway head office has successively introduced convenience service measures such as canceling the handling fee for ticket sales in different places, "continuous transfer" for transit passengers and "independent seat selection" for motor trains to make travel more convenient.

　　　　　　 New Regulation 4: [Guangdong Regulations] We are not allowed to use WeChat to operate tourism business without permission.

　　　　　　 The Guangdong Provincial Tourism Regulations, which came into effect on November 1st, regulate hotels and lodging, online tourism business and travel search engine. For the popular social platform group activities at present, the regulations are clear: units and individuals who have not obtained the business license of travel agencies are not allowed to engage in tourism business in the name of organizing tourism, using social platforms such as WeChat and blogs or industry associations, societies, motorists’ clubs, and donkey friends’ clubs.

This article comes from WeChat WeChat official account:Ai faner (id: ifanr), Author: Chen Wenjun, title map from: vision china

We scan the code almost every day, log in to the website, register information, pay for consumption, add friends … As long as we open it and scan it, we can save a lot of tedious steps.

Every time you turn on the tool to scan the code, these tools usually give a 1:1 scanning code box. Align the box with the QR code, and the mobile phone can immediately identify the information in it.

However, I wonder if you have noticed that even if these tools frame the "scanning area", sometimes scanning can be completed without aligning the frame. As long as the QR code is within the camera’s framing range, the system can immediately identify the content.

Then what’s the use of this box?

In fact, this has a lot to do with the purpose of each app scanning function. Looking at the 10 most commonly used apps in our daily life, the design of QR code scanning pages can be divided into several categories:

Fixed-area scanning is the code scanning mode that we are most exposed to at present. Users need to aim their mobile phones at the QR code scanning to make them recognize. If the target QR code is not in the frame, the app cannot recognize the content.

In some of our more commonly used apps, such as WeChat and Alipay, they have changed from "fixed frame scanning" to "full screen scanning", that is, the entire mobile phone screen is a scanning frame.

The mobile phone can recognize without facing the QR code, and the recognition speed is much faster than that of framed scanning. Before the camera is in focus, the system can recognize the information immediately.

The QR code can be recognized even if it is not in the box (the actual speed is faster than GIF).

Of course, there is also an example here. When I turn on Weibo code scanning, the page is designed with a fixed code scanning area, but the scanning mechanism of app is actually full screen scanning. So every time I prepare to scan, the information has been read before the QR code enters the box.

Is the designer lazy? Not necessarily.

It is obviously not enough to pry open the details of the scanned page, but also need to consider from many aspects, such as the hardware used for code scanning and the decoding ability on the software level.

In fact, it is not difficult to make the scanned code page full screen, but it is not unnecessary to vacate a box as the scanning area.

The reason is that when the QR code first entered our life, neither the app itself nor the code scanning equipment was specially optimized, and the success rate of code scanning was often related to the ambient light, distance and clarity of the QR code.

Personally speaking, the code scanning area provides a hint of code scanning recognition, and its task is to tell the user that the camera is ready for scanning, so long as it is aligned, the information can be read. As for the device itself, whether the camera can quickly identify the QR code has something to do with the focusing performance of the camera and the decoding operation ability of the processor.

The history of QR code can be traced back to the 1980s, but it didn’t begin to spread to our daily life until the past decade.

However, in the early days, the focusing response and speed of smart phones were relatively slow, and they were also easily affected by ambient light and lens clarity. Therefore, when developing app scanning pages, developers need to adjust the camera’s framing range to make the camera focus on a specific area, instead of focusing on a wide area.

The code scanning speed of the old mobile phone is slower than that of the new mobile phone (pay attention to the focus bellows and use Meizu MX5 test)

Simply put,Separating the code scanning area is actually to take care of the equipment with relatively slow focusing speed in the early days.. The principle is similar to the fixed-point focusing area of the camera. The camera only measures and focuses on the area within the square frame, thus reducing the interference of other factors around the target QR code, thus improving the camera focusing speed and the success rate of code scanning.

Looking at it from another angle, the code scanning box is not only a way to tell the user that the scanning function is on, but also a way to improve the recognition accuracy. As long as the key elements of the QR code in the box meet the requirements, the recognition accuracy is about 100%.

In order to enable users to scan codes in different environments and conditions, developers will integrate flash, remote automatic zoom, etc. when using scanning code development libraries such as zxing, all of which are aimed at enabling mobile phones to see the QR code information in the box and facilitate users to scan in any use situation.

However, in recent years, the camera focusing speed of smart phones has improved rapidly, and the ability of the core processor to process images has gradually improved. Therefore, modern mobile phone code scanning does not need long-term focusing, even if it does, it can only be completed in less than one second.

At the same time, with the application of QR code becoming mainstream, app developers also improve the speed and success rate of code scanning by creating their own code scanning engine, instead of relying solely on the hardware level to complete the identification process-WeChat is one of them.

Although WeChat is not the first app to use QR code, it has to be admitted that it is the most frequent app to use QR code and scan code, which not only makes users think of WeChat once they mention "scan code", but also indirectly promotes WeChat’s development of scan code technology.

Before QBar came out, there were mainly two kinds of code scanning engines, zxing and zbar. These two engines have different advantages, but both have their own shortcomings. At the same time, these two engines have more restrictions on barcode recognition than QR codes.

In 2016, the WeChat technical team introduced the working principle of QBar code scanning engine in a tweet published by WeChat official account WeChat School.

Compared with the traditional code scanning method, QBar will screen out the barcode/QR code content through the pre-judgment algorithm when scanning the code page, quickly identify the graphic code information in front of the screen through scanning the page, and then decode the image through QBar engine to output the final result.

In other words, when the user opens the code scanning page, as long as there is a barcode or two-dimensional code image in the frame, the system has already started to predict the user’s code scanning target and start to classify and identify it.

GIF can be recognized only in one corner (using WeChat scan function)

And because the QR code itself also has a fault-tolerant mechanism.(Originally designed to make the QR code work normally under damage)In fact, the camera does not need to compare the complete QR code, just find the key points of the QR code within the fault-tolerant range to identify it. Combined with the characteristics of QBar engine, the code scanning camera can identify and decode the QR code and its key information in one second by predicting and screening it.

Flow chart of WeChat code scanning prediction module, picture from: WeChat School

The recognition principle announced by WeChat seems complicated, but in modern smart phones, these tasks can only be completed in a few milliseconds. According to the reference data of "WeChat School",The decoding time of WeChat on iOS client is 5 milliseconds, and that of Android client is 12 milliseconds..

As for why the code scanning speed of iOS devices is faster than that of Android, this may be related to the decoding performance between iOS and Android devices at that time.

IPhone 11 Pro Max uses WeChat code scanning speed (slightly accelerated due to the number of GIF frames).

In the test in the daylight environment, the iPhone using A13 processor has indeed completed the recognition before focusing, and even the iPhone 7 in 2016 can achieve the "one-stroke scanning" response; The Android flagship using Snapdragon 865 also responds very quickly, but there is a slight speed gap compared with iOS.

If the iPhone scan code is "complete identification before you see it clearly", then Android is "complete identification immediately after you see it clearly".

The difference between the two is only in milliseconds.

One plus eight uses the code scanning speed of WeChat (slightly accelerated due to the number of GIF frames)

However, although the scanning speed of Android is slightly lower than that of iOS, compared with the speed difference between the two camps five years ago, the improvement of Android has been very obvious, which is almost the same as the recognition speed of iOS. If you don’t pay attention, you can hardly see the difference between the two.

Therefore, the recognition time of the past 5/12 milliseconds is not absolute, and they will change with the iteration of mobile phone hardware and soft algorithm.

It is worth mentioning that when using Android devices to scan multiple QR codes at the same time, multiple QR codes in the screen will be identified together, and then an entrance will be provided for users to choose their own objects; Although the recognition speed of iOS is faster, when faced with multiple QR codes, the system chooses one more.

Wechat without a fixed scanning frame can identify multiple QR codes at the same time (note: at present, this function is only tested in gray scale in some Android clients)

In addition to WeChat, Alipay also uses a full-screen scan similar to WeChat. Although its recognition speed is slightly slower than WeChat, it can also achieve the level of recognition by raising your hand.

According to the technical documents shared by CSDN users, Alipay’s code scanning function is integrated by libqrencode library. Although it is not Qbar of WeChat, its recognition speed under deep optimization can also be calculated in milliseconds.

With a more perfect algorithm engine and hardware decoding ability, mobile phones have become "sensitive" to the identification of QR codes, and they can quickly identify the contents of the codes without high-definition images.

In this way, the box used to fix the focus in the past will naturally be replaced by full-screen scanning.

Alipay’s recognition speed is also very fast (iPhone 11 Pro Max test).

The changes in the form of code scanning are particularly obvious in the apps with more code scanning behaviors such as WeChat, Alipay and Weibo.

Users can quickly complete code scanning transactions on WeChat and Alipay; Weibo allows users to quickly complete the two-step verification of code scanning.

The change of code scanning speed and accuracy depends on the improvement of code scanning engine and algorithm by several head enterprises, but from the side, it actually benefits from the continuous upgrading of mobile phone hard power. Only a camera with higher resolution and a processor with better computing performance can carry more complex decoding engines and algorithms and realize millisecond scanning code recognition.

IPhone 7 and the old version of WeChat scan box

From the evolution of the code scanning page, it can be seen that the code scanning efficiency of mobile phones is constantly improving, and commonly used apps can complete scanning without aligning codes when scanning codes. Then let’s look back, is the most primitive scanning code box still meaningful?

Actually, there is.

First of all, the current retention rate of old equipment is high, and the service life of smart phones is generally 2 to 3 years, or even 4 to 5 years. The focusing and recognition capabilities of old phones are not as good as those of new phones.

The function of the scanning box, as mentioned above, is convenient for the old mobile phone to quickly find the focus and improve the scanning speed and accuracy of the QR code, and it can also intuitively guide the user to aim the mobile phone at the code scanning, which actually indirectly improves the recognition efficiency of the old mobile phone every time it scans the code.

Although JD.COM and Taobao scan codes are full screen, they still need to be scanned in the frame.

In addition, although WeChat has its own code scanning engine, not all app developers have the ability to develop engines or specially optimize engines.

For the app with little demand for code scanning, the scanning function is mainly to scan the QR code, and the scanning success rate is more important than the speed. Therefore, under the premise of not optimizing the recognition engine, using the original in-frame scanning can ensure that both old and new devices have a high recognition success rate.

The popularity of two-dimensional code greatly simplifies our operation in inquiry, payment and registration, and the mobile phone used to scan it is also becoming efficient and diversified with the upgrading of decoding ability of software and hardware.

Today’s code scanning page can scan more than two-dimensional code, and it can also be combined with neural network to recognize things. According to the introduction of the latest function document of WeChat, based on 850,000 plant image data provided by Kunming Institute of Botany, Chinese Academy of Sciences, at present, the sweeping function can identify more than 36,000 plants, which basically covers the data of flowers and trees we see every day.

It can be seen that the code scanning page is carrying more functions with more meta-algorithms.

For this reason, the scanning code box used to guide users and improve the focusing speed of equipment in the past has gradually withdrawn from the stage with the algorithm upgrade, hardware iteration and the scanning code page supporting more scanning targets. howeverIt didn’t really leave us, just evolved from 1:1 in the past to the same proportion as the mobile phone screen..

This article comes from WeChat WeChat official account:Ai faner (id: ifanr), Author: Chen Wenjun

　　　　Colleague Xiaoyi is a real old fruit fan. Whenever someone talks about negative news about Apple, he rolls his eyes.

　　　　Recently, however, Primary One seems a little tired and often forgets to bring it to work. Words have to start from a month ago.

　　　　Xiaoyi became the first batch of users last month. Since then, I have been proud of horseshoe disease, and I despise all mobile phones in one fell swoop. Even the posture of unlocking the mobile phone is particularly ceremonial:

Xiaoyi elegantly unlocks X like an oil painting.

　　　　Head straight and shoulders straight is like taking a photo; Then raise your mobile phone demurely and stop at the level of your face, 50 cm apart; Then use the index finger of the other hand to gracefully open the unlocking interface. In one go, flowing.

　　　　Whenever there is a BUG or incompatibility problem with iPhone X, Primary One will wave his hand and say: Nothing, the next version will be fine. If you encounter an uncomfortable place, Primary One will shake his head and say, Nothing, just get used to it. Now that a month has passed, bugs are still popping up, and Primary One is finally on the rampage.

(Image from Rampant)

　　　　To run away because of a trivial BUG is to make a mountain out of a molehill in the eyes of others. But only Xiao Yi knows clearly how painful these bugs and the price close to 10 thousand yuan bring.

First, the face is unlocked-it is not easy to say that I love you.

　　　　Wow! Brush your face and unlock it. Great! This is the first reaction of Xiaoyi to know that iPhone X uses face recognition. After getting the mobile phone, it is used again and again, posing in various positions to unlock it. Have a good time.

　　　　Suddenly told me two days ago, I really envy you, such a cheap mobile phone can still unlock fingerprints, I wish my iPhone X could unlock fingerprints.

　　　　I said, don’t you have face recognition? Great face recognition.

　　　　Don’t say it, Xiao Yi rolled his eyes and said that face recognition can only be fun, which is too impractical. All kinds of solutions can’t unlock.

Not facing the face often fails to unlock.

　　　　The following are the problems encountered in face recognition summarized by Xiaoyi:

1. It is difficult to unlock when lying down.

　　　　Lying on your back or side is not good, it is quite difficult to unlock and the success rate is very low. However, this increases the sleep time to a certain extent, because it is difficult to unlock after lying in bed, and you are too lazy to enter the password, so go to sleep.

2. Not too close

　　　　When the face is too close to the phone, the success rate of unlocking is also very low (I don’t know if it is because the face is too big). This can explain why every primary one should be unlocked with dignity and elegance as mentioned at the beginning.

3. The mobile phone can’t be untied without facing the face.

　　　　IPhone X must be facing the face when it is unlocked. Xiaoyi said that this made him pay more attention to looking directly into each other’s eyes when talking to others. Like the last one, this improves the temperament and cultivation of users to a certain extent.

4. The mobile phone can’t be untied horizontally.

　　　　When the screen is locked in horizontal games, watching videos and other interfaces, you must unlock the phone by holding it straight and then put it back horizontally. Xiaoyi said that mobile phones are still used to make calls, and watching videos and playing games is still rare.

More elegant private photos of Hilton Swimming Pool in Xiaoyi’s mobile phone.

　5. When I didn’t want to unlock it, I reversed it quickly.

　　　　Last time Xiaoyi’s friend took his iPhone X and called him from behind. As soon as Xiaoyi turned around, the phone was unlocked. Then the private photos of him and his girlfriend going to the Hilton swimming pool spread. Primary one now puts his mobile phone in his pocket and doesn’t give it to others easily.

Second, is this comprehensive screen a robbery or a fate?

　　　　If you remove "Qi Liu Hai", it may be the most like a full screen. This is one of the reasons why Primary One feels superior when using this mobile phone.

1. Change of operation mode

　　　　The removal of the HOME key has greatly changed the way X interacts. Fruit fans are actually happy to learn new ways of interaction. Just like a freshman, the new machine has been used to the operation mode without HOME button in less than two hours. But there are still some changes that make him feel uncomfortable.

　

Control Center and Process Management

　　　　It is inconvenient for the control center to have to pull down.. Because the control center is often used, the original push from bottom to top is more in line with the operating habits of large-screen mobile phones.

　　　　Ending the process is too much trouble.. Primary one finally learned how to end the process from the internet, but still found it too troublesome to operate. Maybe Apple doesn’t want you to end the process at all.

2. The display effect is not ideal

　　　　First of all, the screen is not fully utilized.. Under normal circumstances, there will be a "head and tail safety zone", and the content will not be displayed and the operation cannot be carried out. It’s hard to understand the significance of full screen.

　　　　Secondly, the status bar shows too little content.. Xiaoyi often complains that his mobile phone can’t display the remaining battery power in the status bar. There are also icons such as Bluetooth that cannot be displayed.

　　　　Finally, a large number of apps do not match.. Many of them still don’t match the full screen of iPhone X, including Apple’s own apps, such as iMovie. Xiaoyi vividly describes this scene: the rough unused black area and the border are perfectly integrated, making you forget that you are using a full-screen mobile phone in an instant.

　

The screen utilization of iPhone X and iMovie is very low

Third, the pressure caused by expensive maintenance costs

　　　　People who don’t buy it, such as A Lang, find it hard to understand how much pressure the maintenance costs put on users. Changing the price of 2000+ for glass is not a problem for people who spent nearly 10000 yuan to buy it?

　X broken screen maintenance costs 2278 yuan (picture from apple)

　　　　When A Lang saw Xiaoyi’s mobile phone, all the puzzles vanished. Some people can only buy iPhone X by tightening their belts or by stages, so they cherish it. However, Xiaoyi’s family is quite well-off.

　　　　Xiaoyi owns a number of properties under the local name, and lives in the Third Ring Road in Beijing. Her clothes are all fashion brands such as fingercroxx, she uses PS4 for games, three-piece sets of apples (mobile phones, watches and headphones), Kiehls skin care products on her face and Bvlgari sea fragrance on her body …

　　　　However, looking at his mobile phone, the thickness of the protective case is close to 1cm. A Lang felt completely insane. Is this a full-screen mobile phone? Xiaoyi said, you don’t understand, this kind of protective shell is 3m anti-fall, and falling from a height of 3m can ensure that the front and rear glass are not broken.

IPhone X three-meter anti-fall protective case

　　　　Such a thick protective shell may be just an example, but the huge use pressure brought by the high maintenance cost of broken screens should be a common phenomenon.

Fourth, the heavy player finally uninstalled the game.

　　　　　Like many post-90s generation, Xiao Yi is a heavy player of the glory of the king. He used The Story Of Diu Sim to get platinum, and now he has used Wu Zetian to hit diamonds.

　　　　However, Primary One has uninstalled the glory of the king. As the most "soft sister coin glory" version, it is really hard to understand the torrent of the soft sister coin player Xiaoyi.

　　　　Xiaoyi said that it is too uncomfortable to play games with iPhone X. The white bar at the bottom is easily pushed back to the process list by mistake, especially when it flashes. It won’t flash out for the first time, so push it back to the desktop. Are you angry?

It is easy to misunderstand that iPhone X hits the white strip under the glory of the king.

　　　　Moreover, this problem does not only exist in the glory of the king, but also exists in almost all horizontal screen games. The white bars below have seriously affected the experience of the game.

　　　　In addition, iPhone X actually doesn’t support the recording of "King’s Moment", so what’s the use of not showing it to friends?

IPhone X doesn’t support the glory of the king video function for the time being.

　　　　Moreover, there are still some incompatibilities. When I called a few days ago, I got stuck in the login interface, and I couldn’t get in or get out. Finally, I found a method of forced restart from the Internet to solve it.

　　　　The most important thing is that when operating, the operating areas on both sides move close to the middle, and the two hands are too close, which is inconvenient and easy to get tired. So I stopped playing the glory of the king recently and began to return to PS4.

Five, many small unhappy accumulated into a big disappointment.

　　　　From the release to the sale for more than two months, it has always been the "dream" of Primary One. Face recognition, full screen, fast charging+wireless charging, and facial expressions are all like functions in dreams.

　　　　However, one month after I got X, Xiaoyi said that my dream was shattered. It may be because of high expectations, but it is still broken.

Both wireless charger and fast charge need to be purchased separately.

　　　　Face recognition and full screen have been mentioned before. Fast charging and wireless charging have to be purchased separately, and the charger is still "turtle speed". I don’t spit much when I talk, but I have never used it except when I bought it.

　　　　The AR function has not been found to be different from the AR function on the previous iPhone, and it will also generate heat when running.

　　　　When the mobile phone is connected with a watch and an earphone at the same time, the last one cannot be displayed when the font is large on the power Widget control.

　

AirPod Case can be displayed when the font in the battery Widget is small, and it is displayed as a space when the font is large.

　　　　Now in winter, when using mobile phones outdoors, the screen occasionally fails and the touch is unresponsive. In addition, the screen failure under "Liu Hai" is a common thing.

　　　　The system that can’t be repaired all the time, the old BUG has not been fixed, and the new BUG appears again.

　　　　…………

　　　　Finally, Xiao Yi said: What annoys me in the end may be just a little upset, but I have put up with the other unpleasant parts of it too much to bear.

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　　　　There are indeed many problems with iPhone X, but it is undeniable that it has changed Apple’s new machine release strategy with minor repairs over the years, but has dared to create and absorb new technologies and designs. It also brings a refreshing experience and impression to the public.

　　　　Whether iPhone X is a satisfactory product for fruit powder or not, it is a successful experimental mobile phone.

　　　　It is inevitable that the mobile phone which is quite different from the previous generation will have uncomfortable use and system problems. Moreover, these non-hardware problems are generally fixed with the upgrade of the version. The problems of hardware and design will also be significantly optimized in the next generation of products.

Net transmission of iPhone X sequel to be listed next year (picture from Baijia)

　　　　So let’s put aside all the problems of iPhone X and pay more attention to its breakthrough progress. I also hope that Apple will solve all the problems in the upgraded products next year and launch a better iPhone.