A small meeting was held in Qili Village, and sure enough, based on the current situation of Qili Village, Wu Laojiu did not support the relocation of Q Company, not to mention anything else, "Starting from Zero" alone still needs a lot of personnel maintenance, in addition to Yanhuang mobile phones, Q series software, etc., which also need manual maintenance, upgrades, etc. Pen % fun % Pavilion www.biquge.info

However, now that the development of the Q series software and "Starting from Zero" has stabilized, there is no need for Caixing and Cheng Ye to do anything more, and this is even more true in Laboratory 33, in addition to daily research and the extraction and analysis of meat Ganoderma lucidum, Li Chunhua and Li Bin and others are more idle than Caixing and Cheng Ye.

Zhou Cheng gave them the handover task, and after the handover was over, he asked them to report to the new office in the new district.

A week later, in the Heishi New District Industrial Zone, next door to Mr. Wang's Butiandan manufacturing plant, a new, unlisted office building began to be popped in and out.

This unlisted office building is the new scientific research building vacated by Zhou Cheng for Caixing.

At this time in the research room, Zhou Cheng put forward his own ideas for the first time to the four of them.

"This time I am ready to make changes to the existing QR code, as for the latest technology and data analysis of this part, I have done a good job, and the information has been printed, if you have any opinions, you can put it forward for discussion and discussion. ”

Since the four of them hadn't read the information yet, they only listened to the QR code change, and Cai Xing thought that Zhou Cheng just wanted to improve the original technology, and immediately asked suspiciously.

"Mr. Zhou, the QR code has been developed for so many years, and the technology is already very mature, if it is improved, I estimate that it will ...... Not too optimistic......"

Caixing has always been more conservative in speaking, if it is Wang Gang, then he will definitely say, you change a yarn, people's three-dimensional codes have been tested in small areas, what else do you change?

The two-dimensional code is a black and white graphic distributed in a plane according to a certain law with a specific geometric figure to record data symbol information.

In the compilation of code, the concept of "0" and "1" bit streams, which form the basis of the internal logic of the computer, is cleverly used, and a number of geometric shapes corresponding to the binary are used to represent the numerical information of the text, and the automatic processing of the information is realized through the automatic reading of the image input device or the photoelectric scanning device.

In fact, this technology appeared very early, in the 80s of the 20th century, it has been proposed, it is 20 times higher than the information density of one-dimensional codes.

After so many years of development and evolution, its functions have been developed and applied to many fields, such as information acquisition, website jumping, advertising push, shopping ordering, mobile payment and so on.

Even some institutions specializing in this area have promoted the QR code to all aspects of society, such as many large hotels and restaurants.

There are also some questionnaires, unit assessments, online conferences, etc., which have also begun to try to use QR codes.

With the popularization and use of QR codes, despite its own advantages, in the forest of technology, the shortcomings and vulnerabilities of QR codes are also quickly discovered and exploited by some people.

As early as the "Global Mobile Phone Security Report for the First Half of 2012", it was proposed that in the first half of 2012, 17,676 mobile phone malware were detected and killed, and the QR code technology became a new channel for the spread of mobile phone viruses and phishing websites.

Although it is difficult to deduct fees independently from QR codes, the success rate of inducing fraud methods is still not low.

Soon after the appearance of the QR code, based on the defects of the QR code, the theory of three-dimensional code has been proposed.

Three-dimensional code has a larger information capacity, the same recognition ease and better security.

Because in the encoding process, users can change the base system of the data at will to encode, which increases the confidentiality. Therefore, three-dimensional codes can be used in a variety of important fields such as confidentiality and anti-counterfeiting, such as encoding graphic data such as various documents, text data, icons and photos.

Decoding requires not only special software but also the base system of the data set by the user, making it difficult for others to decipher the codec.

Zhou Cheng smiled and shook his head.

"No, no, no, I know you want to say three-dimensional code, three-dimensional code for two-dimensional code, in fact, it is only a significant improvement in security, but it is inconvenient to use, just like preventing thieves at the same time, even to prevent themselves, and the practicality is not great, so although it has been successfully developed, it has not been promoted. The idea I came up with this time is to go beyond the 3D code and directly transition to the 4D code. ”

"Four-dimensional code?"

Cai Xing, Li Chunhua and others exclaimed at the same time, they had more or less heard of the three-dimensional code, and Cai Xing had even studied it, but the four-dimensional code, only Cai Xing had heard the name in some cutting-edge materials.

Zhou Cheng nodded.

"Well, the four-dimensional code, on the basis of the original two-dimensional code, both the grayscale expansion of the "pseudo-three-dimensional code" is expanded again!"

Cai Xing and Cheng Ye glanced at each other, this concept is known to fools, this is similar to 2G in the field of communication directly crossing 3G to 4G, Zhou Cheng continued with a smile and unhurriedly.

"The four-dimensional code is similar to a virtual storage space, and the current limit data is that 512k effective data can be stored per square centimeter, which can realize artificial AI for items. For decoding capacity, security, convenience, and applicability, compared with two-dimensional code and three-dimensional code technology, it has made great progress and improved. ”

Seeing that the four of them were still indifferent, Zhou Cheng scratched his head, this theoretical knowledge is too dry, so he still has to give some practical examples to illustrate, and immediately thought about it.

"I'll give you an example, for example, in the future, we can use cellular-like technology to superimpose the four-dimensional code to infinity, so that it has a safe, convenient and permanently damaged virtual space, and the secondary application will also be magnified countless times, for example, if we want to watch a large TV series, we only need to scan the four-dimensional code, and all the episodes will be automatically played, without downloading at all, which is similar to a process of sharing a virtual hard disk. ”

As soon as other people said this, they suddenly became enlightened, and Cai Xing clapped his hands and gave an example.

"If this can be realized, then in the future, the hard disk of the computer, mobile phone, it should also be possible to achieve virtualization docking, if so, then this is really a revolutionary invention, although the four-dimensional code and the two-dimensional code is just a digital difference, but the role is completely different. ”

Cheng Ye followed.

"If the confidentiality is really high enough, then the scope of the reform will be almost the whole industry, bank cards will be canceled, scan the code to withdraw money, scan the code to chat, scan the code to date, scan the code to negotiate, scan the code to replace the ID card, driver's license, etc., can almost be replaced. ”

Li Chunhua added.

"Not only that, if there is really such a large space, it is estimated that many people's four-dimensional code generation will be used as a lifelong virtual U disk, which can store important documents, albums, video files, and even their own very private things! If this is the case, then the popularity and use of four-dimensional code will be rapid!"

Seeing that the four of them were discussing, Zhou Cheng clapped his hands and said with a smile.

"Well, as for what aspects to be used in the future development, this still needs to be considered by the market, provided that we must develop it first, the four-dimensional code is not easy to get, it is based on the two-dimensional code to add a grayscale contrast bar. Upgrade the traditional QR code to a 3D code with 16 times the capacity.

On this basis, the image is reversed and tilted by repeated re-encoding, so that it can be expanded again on the basis of the original two-dimensional code, which is a four-dimensional code.

This requires high coding technology, but fortunately, I have almost prepared the materials, you guys will take a look first, try to write it, if Chunhua and Li Bin can't help, go to the ...... next door"

Zhou Cheng originally wanted to say the name of Wang Gang's company, but he couldn't remember what the name of this strange company was, and he didn't even know the abbreviation, so he could only say it after being embarrassed for a while.

"Uh...... It's the foreign-funded company next door, the one that produces the Tiandan, and the two of you will go over to help when you have time, and also learn from the revolutionary experience of others. ”

Li Bin was a little embarrassed, he didn't know that Wang Gang went to Kanamoja, and he didn't know that the black man next door was Wang Gang, and thought that Zhou Cheng told him so implicitly, he just wanted him to go next door to secretly other people's experience and group medicine formula, and he sighed for a long time, and asked embarrassedly with a red face.

"Mr. Zhou, although Mr. Li and I don't know much about coding, we ...... It's not good to go next door and steal someone's prescription, right?"

Zhou Cheng was stunned for a moment, suddenly reacted, looked strange for a long time, coughed several times in embarrassment, thought about it, and felt that it was really difficult to explain the reason to the two, and finally could only say with a wry smile.

"No, no, no, how could I let you do such a thing, I mean...... Belch...... Okay, if you have nothing to do, you can first help Caixing and Cheng Ye collect some needed information, Chunhua should also be familiar with computers, and should be able to help. By the way, if you have time, you have to analyze and analyze the application of the four-dimensional code, Li Bin, this job will be handed over to you. ”

"Uh......"

Li Bin regretfully agreed, but he was particularly curious about the company next door with an extremely long name.