Digital Twins - cognition

Preface

I am a back-end developer in the Internet of things industry , And I deal with digital twins every day , But I don't know what it is , To what extent , I hope to know what I want through this note .

List of articles
Number twin （ The concept of surmounting reality ）_ Baidu Encyclopedia (baidu.com)

One 、 What is digital twin

Tips ： Here you can add the general content to be recorded in this article

Digital Twin, abbreviation DT, For digital twins , In fact, it is a mapping between reality and virtual , Through the acquisition of real multivariate data , Map to the twin space of the model , Solve practical problems in reality from the perspective of visual data , It is actually a bidirectional mapping process .

2011 year ,Michael Grieves Professor at 《 Almost perfect ： adopt PLM Drive innovation and Lean products 》 The three components of digital twins are given ：

1. Physical products of physical space ;
2. Virtual products of virtual space ;
3. Data and information interface between physical space and virtual space ;

Here is a passage from Baidu Encyclopedia ：

In the field of intelligent manufacturing, NASA is the first to use the concept of digital twins （NASA） In the Apollo project , NASA uses the digital twin of space vehicles to pair space vehicles in flight Simulation analysis , Monitor and predict the flight status of spacecraft , Assist ground control personnel to make The right decision . From NASA's application of digital twins , Digital twinning is mainly to create virtual bodies or digital models equivalent to physical entities , Virtual bodies can simulate and analyze physical entities , It can monitor the running state of physical entities according to the real-time feedback information of physical entities , It can improve the simulation and analysis algorithm of virtual body according to the collected running data of physical entity , So as to provide more accurate decisions for the subsequent operation and improvement of physical entities .

From the above sentence, we can also see , The significance of digital twins , Multiple data generated through physical space is fed back to virtual space , Then feed back the physical space through the virtual space .

Two 、 The collision of demand pain points and values

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The first problem solved by digital twins , Data island , that , What will the once digital island be like ？

After introducing the thinking model of digital twins , The perspective presented is visible to the naked eye 、 Invisible three-dimensional vacuum data perspective .

Why should I draw one text icon after another in the virtual space , In fact, in the digital twin , It is also divided into several implementation stages .

• The first stage ： Input of multivariate data , Control and inspection of physical products , Only as a model platform for aesthetic display ;
• The second stage ： On the basis of the previous stage , Be able to handle large data sets 、 Intelligent emergency control 、 The robustness and stability of cloud , Physics / The driving force of production in the virtual sense ;
• The third stage ： Complete ecological linkage , Intelligent production analysis and decision , Products are under development 、 Benefits in the whole life cycle of operation and maintenance , The real reality collides with the spark of artificial intelligence .

In addition to the digital island , Let's think about another scenario ： A fire broke out in your neighborhood , What was your first reaction ？

1. hit 119 Telephone , Fire Alarm , Tell me the exact location ;
2. At this time, fire warning equipment may be triggered , Spray water ;
3. On the basis of not hurting yourself , Can you call others for help ;

that , These things above , Can we solve it through more intelligent prediction ？

1. Before the fire , Temperature sensing system alarm , Communicate the digital platform ;
2. Advance forecast , Real time linkage to relevant personnel ;
3. It happened , Trigger the emergency disposal plan ;

actually , The role of digital twins in life , Is to create a digital virtual world in real space , Better dynamic description of things in the real world , So as to serve the real world .

3、 ... and 、 Application value

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The current value of digital twins , It has covered all industries .

• Smart city

  Realize dynamic intelligent monitoring and management in the city , Panoramic control , Intelligent analysis of urban data , And solve problems such as traffic pressure through intelligent autonomous learning ability .

• manufacturing

• Industrial products

• Logistics field

• Agriculture

• The medical field

meanwhile , There is also an inseparable and wonderful connection between digital twins and the meta universe , This will be discussed later .

Four 、 Technical architecture and Implementation

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In the landing of digital twin Technology , Conceptually, you can never escape

1. Cloud computing
2. The Internet of things
3. big data
4. Artificial intelligence
5. 5G Communications

Very familiar, right ？ In fact, it is also a technology and thinking that is constantly at the forefront , Make the concept of interconnection of all things to the extreme .

And in reality ：

In the virtual world ：

This is my view on Java Some humble opinions on back-end architecture design , It is intended to build a universal project platform architecture , Using the open source version BladeX Secondary development .

About the code warehouse address in the last section .

Code warehouse address

Address directory
General background model of Internet of things - be based on BladeX: Based on the open source version BladeX The general Internet of things platform server built (gitee.com)