With the rapid development of my country's Internet of Things technology and 5G networks, the connection between the real physical world and the virtual information world is gradually increasing, and "things" is currently an effective means to realize the interconnection between the physical domain and the virtual domain. The advanced stage of the construction of the Grid Network is to build a super three-dimensional mirror world. The combination of the code chain and the Grid will lay the underlying technical foundation for the construction of this mirror world, including ensuring that data cannot be tampered with, and establishing digital twins and physics. The one-to-one mapping relationship between entities realizes the interaction between digital individuals. From the perspective of building objects, the mirror world based on the code chain can be divided into three types including people, objects, and interactions between people and objects. The main application scenarios of these three types of forms are: intelligent IoT, citizen code and wisdom city. In the post-epidemic era, the requirement to implement the normalization of epidemic prevention and control has increased the application requirements for these three scenarios, which is the development direction of new technologies in the future.
1. Development background
In April 2020, the National Development and Reform Commission and the Central Cyberspace Administration of China issued the "Implementation Plan for Promoting the "Use of Data and Intelligence" to Cultivate New Economic Development. , Which mentioned the concept of " digital twin" many times. In the second section of "Main Directions", it is mentioned: "Supporting the exploration of new-generation digital technology applications and integration innovations such as big data, artificial intelligence, cloud computing, digital twins, 5G Internet of Things, etc. in qualified industries and enterprises." In the third section of "Recent Work Measures", it is mentioned: "Encourage research institutions and industry alliances to hold various innovative activities, focusing on solving the digital infrastructure, general software and application scenarios faced by enterprises in digital transformation, and focusing on digital twins. Difficulties and pain points in the specialized division of labor, guide all parties to participate in the proposal of digital twin solutions."
The digital twin mentioned many times in the plan refers to the simulation of physical entities, processes or systems in the information platform, similar to physical systems Twins in the information platform. Simply put, a digital twin is to create a copy of a real physical entity in the digital world. The initial applications of digital twins are mostly concentrated in the military and industrial manufacturing fields.Today, its application scenarios have been extended to many different fields such as medical care, consumption, and public utilities. The connotation of digital twins has also been further developed.
From the perspective of technical realization, the general framework of digital twins includes the following five aspects: user domain, digital twin, measurement and control entity, real physical domain, and cross-domain functional entity. The relationships in the framework are bidirectional. From the perspective of digital objects, digital twins can be divided into components, assets, processes, systems, and system networks. From the perspective of development stages, digital twins can be divided into five stages according to their maturity: digitization, interaction, prophecy, foresight, and shared wisdom. The digital twin at the highest stage is not only a digital copy of an object in the real world, but also has the ability to communicate with the real world, make inferences based on complete or incomplete information, and even have the ability to interact and co-evolve with other digital twins.
The development requirements of digital twins: on the one hand, it is necessary to be able to build larger-scale digital twins. For example, the scale of digital twins required by spacecraft is relatively large compared with that of engines; on the other hand, digital twins should be improved in the virtual world. The interactivity between entities has a higher value. In terms of unmanned driving technology, the computer system not only needs the independent twin of the car, but also needs related road conditions, weather, real-time dynamics and other information, and even needs to obtain the driving dynamics of other cars. These are obviously the blind spots of the current digital twin technology.
This article aims to explore how to establish a connection between digital twins, establish a mirror world in the virtual system that is basically the same as the real world, and analyze the three application scenarios of smart things, digital human identity, and smart cities The application value of "code chain material grid".
2. The development process of digital twins and the analysis of physical lattice technology
(1) From the concept of digital twins to the application of physical lattices
During the American aerospace "Apollo" project in the 1960s and 1970s, NASA made two identical spacecraft ,One is used to perform the flight mission, and the other stays on the earth. It is called a "twin" and is used to reflect the state of the other aircraft. At this time, the twin is still in the simulation stage. The "twin body" has two distinctive features: the twin body and the entity it reflects are identical in appearance, content, nature, performance and other aspects; the twin body can truly and completely reflect the operating conditions of another entity. The twin at this time focuses on "simulation" performance, and its manifestation is still a physical entity.
Professor Grieves of the University of Michigan in the United States put forward the concept of "virtual digital expression equivalent to physical products" in the product life cycle management course. At that time, it was defined as: a digital copy of a specific device or a set of Abstractly express real devices, and can be tested under real or simulated conditions based on this. This concept clearly showed the expectation for high-level data integration analysis at that time. It was the prototype of the digital twin concept. It was called the "mirror space model" from 2003 to 2005 and gradually evolved into "information" from 2006 to 2010. Mirror model". Until October 2019, the world’s first Internet of Things game "Woge Manor" conference was held in Xi’an, and Mr. Xu Wei designed a more systematic "things economy theory" based on the "digital twin concept". It is known that the term "things" has been used since then.
Although the application of the object lattice has been continuously upgraded and changed, its constituent elements are basically the same as the conceptual model, and they have broken through the physical space limitations of the original twin. The constituent elements include physical space, digital virtual space, and two There are three parts of the connection between the people, the conceptual model is the physical product, the virtual product, and the data information interaction interface between the two spaces.
The development of the lattice of things can be summarized in five stages, namely the digitization stage, the interactive stage, the prophetic stage, the pre-aware stage and the common intelligence stage. The digitization stage is the primary stage, which is only the establishment of a digital model of the real object; the object grid in the interactive phase can communicate with the entity. The result is sent to the operator; the character of the prophetic stage can predict the future situation based on the complete information of the past and the present and the clear operation mechanism of the entity.For example, the online character grid can predict the impact of changes in the future for a period of time on offline operations, thereby proposing relevant pre-presses; the pre-awareness stage can predict the future based on incomplete parameters and fuzzy mechanisms. Compared with the prophetic stage, its technical requirements are Higher: The ideal goal of the common intelligence stage is that things can communicate, share, and even evolve together. Obviously, the current technology is far from reaching the requirements of common intelligence.
Fortunately, in the past few years, due to the continuous development of related technologies, the deployment of the material grid is beginning to accelerate.
In terms of simulation function, the current object game can basically realize simulation based on real geographic location, and has the function of real information data collection and recording. On the other hand, due to the gradual increase in the number of merchants, the coverage of Wuge doorplates is rapidly expanding. In addition to the original information recording function, it also brings a brand-new upgrade and breakthrough for the construction of the underlying logic of the business. From then on, the operability, credibility and practicality of the character game and the character social will be greatly improved.
In terms of data sources, Wuge is benefiting from the continuous improvement of CodeChain Internet of Things technology and big data. Its data source channels will also be more extensive, and the data dimensions will be more comprehensive, such as the data generated by the value chain mall and the industry code mall. , Data collected through real-time monitoring technology can be instantly transmitted to the online object grid. Through real-time data feedback, the object grid can quickly correct small deviations in the simulation process and make the experimental evaluation results more accurate.
At the level of interoperability, the "scan scan" rights protection is currently in full swing, and the global unified code distribution of the code chain standard is already on the line. The unification of the two-dimensional code entry will also provide more powerful interoperability for a wide range of applications. At the same time, different industry codes will also integrate multiple types of platforms, and work together to promote the construction of unified technical standards. These have significantly improved the ability to combine the digital world with the real world, and weakened the connection barriers between the physical space and the virtual space.
From a visual point of view, the creation of a physical economy requires a huge amount of data, which will complicate the analysis problem and increase the difficulty of extracting effective analysis results from it. The emergence of Yukong glasses will undoubtedly provide more imagination for the future application of the object. It not only supports the visualization function of the object, but also can filter and extract real-time information to make the result analysis more accurate.
(2) The grid network and the mirror world
In short,Entity is to create a copy of real physical entities in the digital world, and its important significance is reflected in the ability to record and analyze behaviors in the digital world. For example, when we scan the QR code of an offline entity, it can be seen as the geographic location and related information of the thing in the digital world.
Even in the future, when the Grid Network has a relatively complete data foundation, I can still use it to accomplish some difficult or expensive things in the real world. For example, if a business plans to open a large-scale supermarket in a certain area, we can create a virtual business environment for it and simulate the operating conditions of the area at various time periods, so as to evaluate the future development of the supermarket.
In 2020, China International Big Data Industry Expo , the author of "Out of Control" Kelly gave a speech on the theme of "Digital Twin Mirror World". Kelly believes: "The mirror world is a major change that will occur in the next 20 years. This change superimposes the current digital world (such as the Internet of Things, 3D models, SLAM, etc.) into the real physical world. The connection between people (social media), and the connection of all information in the world (the Internet), the mirror world connects the physical world with virtual digital information, creating a seamless interaction between people and the virtual network Experience."
3. Code chain technology provides a trusted data platform for the development of the material grid
The actual construction of the material grid ecology needs to rely on a large amount of data calculations, so its reliability and calculation of data Infrastructure credibility has high requirements. But up to now, the thing ecology still needs to input data and run through the central server, but the core of the thing is the integration of data, to realize the trust in the system, it is necessary to solve the problem of data credibility.
We know that in a "centralized" system, there is always a natural boundary for trust in data. For example, for a small street shop, the volume of data involved in its character doorplate is small, the tolerance for result errors is also high, and the results are predictable.As long as the result is within the predicted range, the character can easily gain the trust of many participants. As for the character doorplates of large supermarkets, the data credibility needs to be highly strengthened due to the great influence of the result deviation. As for the construction of the mirror world of the object, the credibility of the data required cannot be satisfied by any "centralized" system. After the entity data passes through the trusted input network, a huge amount of calculation is required to run the simulation process. Therefore, in addition to credible data, the physical network also needs a credible computing infrastructure, that is, it needs to be correctly and healthy for simulation operation to ensure that the computing infrastructure will not be attacked by anyone and ensure that the calculation results are accurate. The advantage of the
code chain architecture is that it can solve the problem of data credibility and construct a credible computing platform for the object grid. The weakly centralized network architecture based on the code chain can ensure the trustworthiness of the physical data through distributed and non-tamperable information collection and storage. Secondly, the code chain is not just a technology. Its technical structure itself contains a set of behavioral logic and thinking mode. Through a set of rules, protocols, procedures and methods recognized by the participants, the code chain digital ecology can run smoothly. This constitutes the entire trusted network ecology based on the code chain.
In short, the digital ecosystem of the code chain provides a complete set of solutions to deal with data credibility, and the mirror world constructed by Wuge most needs data credibility. The combination of the code chain and the object grid can play their respective roles, expand the application range of the object grid, and provide technical soil for building a mirrored world. From a development perspective, this plan may not be the only one, but it is one of the most feasible. It has extremely important strategic value at this specific historical stage. Its combined advantages are mainly reflected in three aspects: ensuring that data is not tampered with, establishing a one-to-one mapping relationship between the ecology of the physical entity and the physical entity, and realizing the interaction between the digital physical entities, which will be introduced one by one below.
(1) Ensure that data is not tampered with in the cross-domain functional entity
The key to the object grid is to construct physical objects in the virtual world to form their digital equivalents. In the process of "replicating" entities with numbers, whether it is components, assets, processes, systems, or system networks, the most important factor is data. Just like 's yin and yang theory , the dark side of technological development is that some people or organizations try to use technology to achieve their own illegal purposes.The current rapid development of the Internet has gradually lowered the threshold for data collection. At the same time, the standardization of data collection is relatively poor, and data can easily flow into "people with ulterior motives". The emergence of the object grid can simulate real objects based on the collected and integrated data, and predict the future behavior of the real objects, which multiplies the threat of data leakage.
In addition, Wuge uses digital simulation to replace realistic high-cost experiments. Its ultimate goal is to make decisions based on simulation results. If data security cannot be effectively guaranteed, any participant who uses simulation results to make decisions is extremely Big threat. For enterprises, the simulation results derived from false data may lead to deviations in forecasts, which may lead to decision-making errors, which poses an unfavorable threat to the enterprise's market competition; for individuals, the leakage of personal data will bring a lot of unnecessary troubles. For projects involving national security, the effectiveness of simulation results is more important.
An important difference between figures and entities is modifiability. Modifiability is the prerequisite for the digital object grid to be able to simulate and simulate in a variety of complex changes. By adjusting the environmental parameters and the parameters of the physical entity itself, it can be obtained as the environment changes or the conditions of the simulated experimental object change, how its operating effect changes In order to know the optimal design combination. However, the modifiability also limits the application of the character to a certain extent. Any malicious modification or unintentional data modification by the experimenter will cause a deviation between the digital twin and the physical entity, resulting in huge changes in the results. Therefore, when using the object lattice for simulation, there is often a trade-off between the expected simulation deviation cost of the digital world and the experimental cost of the physical world, which will limit the promotion of the object lattice and form a great obstacle to the construction of the mirror world.
On the other hand, we see that the higher stage of the application of the physical entity is not only a one-to-one mapping of the entity, but also should be able to accurately reflect the current state of the physical entity, and at the same time, it must completely record the past information of the physical entity. The past load is helpful to make a more reasonable judgment on the life expectancy of the entity and the current pressure condition. At present, the information of the physique is carried out in a centralized way, which puts forward higher requirements on the information storage capacity of the equipment.
In the code chain network, each QR code contains not only its own uniqueness, but also the DNA information of the previous access party. Suppose that after A scans the code somewhere, A's behavior information is stored in the QR code. If the information is tampered with,Then A's life trajectory will change, and the changed A will not correspond to the information stored in the QR code. The linking method of the code chain ensures that the data in the network is difficult to be tampered with. Using the code chain network to save all the data in the object grid can ensure the authenticity of the data and ensure that the results are effective and reliable. At the same time, the code chain uses a distributed architecture to store data in different clouds, which can alleviate the pressure of centralized systems on data storage, and can effectively retain information about the past operations of physical entities.
(2) Establish a one-to-one mapping relationship between digital objects and physical entities
Another difference between digital entities and entities is their reproducibility. A physical document, a physical entity can be copied infinitely after being digitized. Reproducibility is the convenience of digital entities, but this also leads to the inability to maintain a one-to-one mapping relationship between physical entities and digital world twins, which is often one-to-many. For large and small simulation experiments such as scanned documents, unlimited copy can be used for multiple experiments at a relatively low cost, while for entities such as personal property and money, they cannot be simply digitized and used. Otherwise, everyone can copy their own money indefinitely, and the so-called money will lose its function. In the digital world, it is very easy to establish a one-to-many relationship, but it is more difficult to establish a one-to-one relationship.
For this kind of valuable entities, the value governance is carried out by the binding of the object lattice, and the asset mapping is realized through the object lattice. This asset can refer to either the physical asset or the digital asset. The object grid maps the ownership of assets in the code chain network, and forms a one-to-one correspondence with the code chain digital certificates. In theory, any asset can be materialized, including real estate, automobiles, financial products, intellectual property rights, subscription access rights to certain resources, etc. The identity of the holder of the digital voucher is the ownership of the corresponding asset. The code chain has the characteristics of weak centralization, point-to-point, distributed, time-stamping, information transparency and non-tampering. Using these characteristics of the code chain, asset materialization can reduce the cost of trust, simplify the transaction process, and improve the liquidity of assets.
In addition, the code chain token of the binding entity can realize the one-to-one relationship between the physical entity and the digital entity.Prevent valuable digital entities from being copied indefinitely. For example, each character house number certificate corresponds to a unique character house number owner and digital number, that is, each character house number plate is unique. The digital twin created using the standard of the character can have one-to-one uniqueness with the physical entity. Another advantage of the
code chain is that it does not completely limit the reproducibility of the physical entity when realizing the correspondence between the physical entity and the physical entity. The token of the physical entity is used to identify the entity and correspond to the ownership. Ownership tokens can conduct multiple simulation experiments in the digital world, so that entities such as assets and money can also form corresponding twins on the chain to build a more complete digital world.
(3) Realize the interaction between digital individuals in the advanced stage of the development of the digital object
The "ultimate goal" of the ecology of the object is to establish a digital world corresponding to the real world, that is, the mirror world, to form a virtual world The "ecology" of the world. In this ecology, multiple interactions between digital entities are required, which inevitably involves the transmission and storage of a large amount of information. At this time, it is difficult to set the individual operating mechanism of many digital twins, transfer the data parameters between the physical entity and the physical entity, and design the content of multiple interaction methods between the digital entities.
code chain supports distributed systems. Each server saves a copy of the information about the operation of the entire system. You can edit the copy you own, add some of your own character-related parameters, and update it through the system's consensus mechanism The parameters of the whole system for the object. The distributed system disperses the huge workload of the interaction of the objects. Through the cooperation of many nodes, it can be used as the medium of information communication between the objects and the objects, creating a complete virtual world.
4. Application scenario analysis of code chain and object grid technology
The advanced stage of code chain object grid technology is to build the mirror world, which is not only technically challenging, but also its application ideas It also needs constant adjustment.From the perspective of constructing objects, the mirror world can be divided into three forms including people, things, and the interaction between people and things.
(1) "Smart IOT" of the landing code chain
The "Smart IOT" of the code chain takes things as the main body, and establishes digital twins of physical objects for a large number of physical objects in reality, which are connected by QR codes Save these character data. At present, all objects are based on the real object as the main body of the physical world, and the purpose of data storage is realized through the virtual world. Since the object itself cannot upload relevant information on its own, it needs to use the intervention of sensor equipment, and then cooperate with the code chain Internet of Things to achieve information association and build a mirrored world. At the same time, all behavior records in the thing grid are stored in the code chain network, and the high degree of cooperation between the thing grid, the code chain, and the Internet of things technology establishes a "mirror world" with things as the main body.
takes physical entities as the main body to establish digital objects, and then forms the mirror world. There are many application scenarios, such as anti-counterfeiting traceability of commodities, intelligent supply chain tracking, agricultural product safety assurance, etc. We believe that the continuous development of code chain and Grid technology, as well as the gradual improvement of sensor equipment, will provide impetus for the realization of the "intelligent Internet of Things".
(2) Create a "digital person ID code"
Not only can items have corresponding digital character, but also people can. The creation of the "digital identity QR code" is to build a digital twin for everyone, and the development of the "digital identity code" is more difficult than the physical digital twin. On the one hand, the information involved by each person is much more complicated than the information of the goods, such as education, medical care, identity, travel, consumption and other dimensions. On the other hand, objects can collect all the information to construct a digital twin through sensors, but human information cannot be collected simply.
The digital identity of a person is highly dependent on one's own update of information, multiple parties' review and certification of information, and the results of big data analysis. For example, the identity information is created by the user and authenticated by the real name, and the identity authenticator will verify the authenticity of the identity; the information about the health status is provided by the medical institution and updated based on the results of the physical examination and medical history. In addition, equipment such as health bracelets is also available. Appropriate data supplements can be made; consumption behavior will reflect the wealth level, consumption location, consumption type and other information; education certification agencies can provide academic certificates.
"digital identity code" is recorded in digital form and checked and verified when needed. In the process of talent recruitment, you can quickly display academic qualifications, health, etc.; in the process of medical treatment, you can retrieve past medical history. The efficient and smooth flow of information can effectively improve the efficiency of social operations and strengthen social trust. In addition to storing information, another important function of the above mentioned object grid is the simulation operation of the virtual world, which can predict events in the future for a period of time. As far as health is concerned, big data technology can monitor a person's physical condition by combining experience results and daily bracelet detection results, and for people with chronic diseases, it can promptly remind people of abnormal physical indicators. The "digital identity code" will be updated in real time based on the data fed back by the object, and will alert you to unexpected events.
In the process of creating and maintaining personal digital identities, code chain technology plays an irreplaceable role. First of all, the uniqueness of the code chain can ensure that the personal digital identity is unique, so that there will be no chaotic situation where one person corresponds to multiple digital twins. Secondly, the tamper-proof modification of the code chain can ensure the authenticity and validity of the digital human data. In theory, the information generated by a person from birth (even from the fetal period) can be digitized, and as a person grows, the corresponding information will continue to expand. At the end of a person's life, the information of the digital identity began to stop updating, but the historical record will not disappear. Finally, the code chain can also ensure that user privacy will not be used by anyone else at will. The right to use is in the hands of the user, not the platform. Even in the transaction process, the privacy of both parties can be handled well, and outsiders' understanding of their transaction behavior is limited to the process level, and the information of both parties is not disclosed.
Although the technical difficulty of personal digital identity is relatively high, it already partially exists in real life. In 2020, during the new crown pneumonia epidemic, many public places are required to show a "health code" when entering. The "health code" obtains the user's location and judges the user's health through big data, and classifies and manages people in three colors of red, yellow, and green. It can be said that the "health code" digitizes a person's location information, travel information, and health status. By extension, if you extract more other information about a person, you can create a personal digital twin.For example, Hangzhou is constantly upgrading the "health code" function, expanding the "health code" to a wider range of public utilities, and upgrading the "health code" to a "citizen code".
(3) Building a "smart city"
Smart city refers to the use of a new generation of technology from the basic perspective of the city’s living body attributes to improve citizens’ living standards and quality on the one hand, and improve urban public management on the other The operation efficiency and service of the company can realize the scientific and sustainable development of the informationized city form. Smart cities involve people in all aspects of urban production and life, covering smart government affairs, smart transportation, smart medical care, smart education, smart environmental protection, smart housing, smart energy, and smart logistics and other multi-dimensional, multi-level, and multi-field application scenarios. The construction of a smart city involves the digitization of various elements in the city. In this process, the code chain can play an important role. Various elements in the city establish corresponding virtual digital twins through Internet of Things devices, and many digital twins establish connections through the interaction between real entities to construct a virtual city with complete elements. Based on this virtual city, many types of applications can be developed.
"Unmanned driving" can be considered as one of the applications based on smart city development. All vehicles, roads, environment, and weather in the city synchronize their data to the code chain network through the Internet of Things devices, establish their own digital twins, and integrate them through the code chain network to form a mirrored city, so that driverless cars can access the real world All the information in to achieve safe road driving. In addition, it can also improve various intelligent applications such as judicial and government affairs, urban micro-grids, and energy management and control.
V. Challenges faced by the code chain material grid
The code chain technology empowers the material grid and can provide effective ideas for solving many difficult problems in centralized systems. However, as far as the current situation is concerned, there are still certain obstacles in terms of institutional supervision and technological maturity on the road to the development of the code chain and the material grid.
(1) The management system needs to be further improved
code chain is an emerging digital ecosystem,At present, we are still exploring the system of the code chain network. However, the ecological development of the physical nature is relatively short, and the current national policies are mostly at the stage of macro-encouraging technological development. The "Implementation Plan on Promoting the "Use of Data to Encourage Intelligence" Action to Cultivate New Economic Development" mentioned: "Support is available. Conditions of the industry and the scope of the enterprise to explore the application of a new generation of digital technology and integrated innovation." The regulation of digital twin technology is rarely mentioned in policy documents. The
code chain and the object grid not only involve the two technologies themselves, but also involve a large amount of enterprise, personal, social data, and even national security information data. If they are used carelessly, they will cause greater security risks. For the legal and compliant use of these data to make it truly generate social benefits, it needs to be further improved at the institutional level.
(2) The technology needs further breakthroughs
In theory, the idea of using the code chain network and the object grid technology to build a mirrored world is indeed very attractive. For example, the information of the past world can be preserved completely, and future trends can also be predicted. However, the technology of all parties is not mature enough.
We know that the code chain theory is a data storage method that can only be appended but cannot be deleted. With the passage of time, the amount of data carried by various objects continues to increase, and the storage space required by the code chain network gradually expands. Whether the storage space occupied by such a large amount of data will cause the lag effect of information processing, the feedback delay and alarm delay caused by this delayed response, require rapid improvement in the operation of the delay-sensitive object world. However, we believe that with the launch of 5G and even 6G networks, the bandwidth of the network will be further expanded and these problems can be improved to a certain extent. However, to solve the above problems fundamentally, further technological development is required.
VI. Prospects and prospects
The combination of code chain technology and object grid can effectively improve the credibility of network data and establish a highly efficient work and interaction system. At present, the structure of the game The miniature mirror world can play an irreplaceable role in many areas of economic life. In the future world, the code chain technology will make the matter grid play a greater role, making it fully cover the physical world.Each entity in the physical world will have a chip. The chip collects all the information of the entity and makes a digital copy in the virtual digital world. Each entity has a virtual copy, that is, a digital twin. The integration of a large number of digital twins is like embedding a mirror of the real world into the network, through which the full picture of the world can be seen.
First, life is convenient. Building a mirrored world can provide great convenience for real life. Combining Yukong glasses to superimpose virtual information in the real world, in turn, it can also enhance the real world. This enhancement can come from the sense of sight, hearing, and even touch, and its purpose is mainly to integrate the real world and the virtual world in the senses. In the mirror world, assistants like Siri and Alexa will have a concrete image that can interact with humans. In the future, they will not only be able to hear human voices, but also see human avatars, and capture changes in facial and arm movements, subtle expressions and mood swings.
Second, to enhance human perception. Another big advantage of the code chain is that the participants can organize data anytime and anywhere, and can place the data about the building where the building itself is located. Everything is three-dimensional. Anyone can search for anything in the mirrored world through the phone window, just like a folder in a computer, expanding the visible field of view and enhancing the perception of the three-dimensional world.
As far as the current situation is concerned, the technology applied by the material grid still has a long way to go before it is fully mature. Both the digital ecology of the code chain and the concept of the material grid are in the development stage, and the in-depth combination of the two still needs to be overcome. Some technical difficulties can be realized. Although there are many challenges to be faced in this process, we can be sure that under the construction system of the code chain network, Wuge can obtain in-depth applications and achieve "common wisdom" one day in the future, establishing a mirrored world covering the world. .
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