Intelligent manufacturing, where is the essence of Industry 4.0?

1 Introduction

Intelligent production requires automation of two different properties, one is the automation of production equipment, and the other is the automation of data flow.

The automation of production equipment is very easy to understand for manufacturing companies. It is the automation of the production equipment through automated machine tools, robots and other automation equipment, but how to understand the automation of data flow? In smart factories, How does the data flow automatically? How many passes do you need to go through?

2, the automatic flow of data is the essence of Industry 4.0

In the German Industry 4.0 strategy, there are three integrations: vertical integration, end-to-end integration, and horizontal integration. This is a very important concept in Industry 4.0, and is the key to realizing the integration of value streams within and between enterprises.

Vertical integration is the integration of IT systems at various levels, such as actuators and sensors, control, production management, manufacturing and execution, and corporate planning (extracted from the German Industry 4.0 Strategic Plan Implementation Recommendation). From the perspective of informationization, it is the automatic flow of data between R&D, planning, technology, production, and service in the enterprise, as shown in Figure 1.

Figure 1 Vertical integration and networked manufacturing system

End-to-end integration is the integration of the real world and the digital world through the full value chain of products and the different companies that collaborate for customer needs. The end-to-end integration has highlighted the product development, production, sales, and service as the main line, realizing the automatic flow of data between enterprises, as shown in Figure 2.

Figure 2 end-to-end integration

As the highest level of the three integrations, horizontal integration refers to the integration of various IT systems that use different manufacturing phases and business plans, including the configuration of materials, energy and information within a company, as well as different companies. The configuration (value network), that is, the product supply chain as the main line, through the automatic flow of data between enterprises, to achieve a social collaborative production, as shown in Figure 3.

Figure 3 horizontal integration

As can be seen from Figure 3, the automatic and orderly flow of data is realized between the various roles of the company's internal market, sales, management, planning, production, engineering, and external designers, customers, suppliers, and subcontractors.

Through the definition of three integrations by German Industry 4.0, it can be seen that in the vision of Industry 4.0, in the internal manufacturing, enterprise, social intelligent manufacturing and service, the automatic and orderly flow of data is an important technology to realize intelligent manufacturing.

3. The automatic flow of data within the enterprise is the basis for building a smart factory.

The future enterprise is a value-driven enterprise, an enterprise that automatically flows data, and the free and orderly flow of data is the premise and foundation of a smart factory.

Machine online smooth data flow

Today's computers, mobile phones and other terminals are connected to the network. Imagine if these smart terminals can't work online and can only work in a single machine. It only affects the efficiency of work. In a few days, we may have to collapse: no network, how to work? Similarly, even a machine with its own intelligence The degree of mobilization is very high, and the role that can be played is limited.

Through the professional equipment IoT system, network ports, serial ports and other different interface forms, different numbers, CNC milling machines, CNC lathes, machining centers, robots and other digital machines are networked to realize the interconnection and interoperability of machines. In the past, the situation of machine informationization islands can give play to the advantages of machine cluster control, forming a digital, networked, and intelligent machine group, and achieving an intensive, networked, and flexible production model.

Networking enables machine-to-machine communication, while machine remote acquisition enables machine-to-human interaction. Remotely and automatically collect data from various digital machines such as CNC machine tools and heat treatment equipment (such as smelting, die-casting, heat treatment, painting, etc.), robots, and automated production lines through communication protocols, sensors, and networks. The real-time status and abnormal conditions of the machine, important events such as downtime, critical process parameters, etc. can be timely delivered to relevant personnel through computer systems or mobile phone text messages to achieve transparent and real-time management of machine status. Through remote diagnosis and proactive predictive maintenance of the machine, the intelligent system, like a doctor, receives timely warning, maintenance and repair before the machine has failed, providing a guarantee for the healthy, economical and efficient operation of the machine.

Machine interconnection enables the former "dumb machine" to communicate with the outside world and become "smart and clear", which is also a typical application of "connection to promote intelligence" in intelligence. The digitization and networking of the machine has accelerated the formation of the Cyber ​​Physics System (CPS). "Machine + CPS" gives the machine a group collaboration and intelligent cognitive ability.

Automatic flow of data between people, machines and things, self-organized intelligent manufacturing

Through the Internet + manufacturing model, the realization of the connection of people, machines and objects and self-organization. In this regard, some advanced enterprises have carried out many useful explorations and achieved good application results.

Bosch is a model company for intelligent manufacturing in Germany. In Humboldt's logistics center, real-time communication has been established between the equipment and the workpiece through the Internet and sensors: each workpiece or plastic box containing the workpiece has a radio frequency identification (RFID) tag that records product information. After a production process, the card reader will automatically read out the relevant information, and the feedback will be processed by the staff in the control center. Most of the production activities can be self-organized. For example, where is the workpiece, what machine it is machined on, the length of processing, material inventory, and whether it needs to be replenished. This information is directly integrated with the production management software, and all the data in the production process can be efficiently and real-time flowed and visualized on the network, which can easily and effectively solve the problems encountered in the production process. When the new system is put into use, the factory inventory is reduced by 30%, the production efficiency is increased by 10%, and the savings can reach tens of millions of euros.

At the Bosch Beijing plant, all machine tools are also interconnected. A computer manages all CNC machine tools. The programs are stored centrally in the server. Each machine needs to be automatically downloaded remotely when the machining program is needed. The status of the machine tool is clear at a glance, starting, shutting down, running, processing what products, processing the number of products, faults. Information, machine utilization, etc., all information is automatically and accurately displayed, achieving transparency and self-organization of the production process.

People, machines and materials are the three elements of enterprise production. Through digital means, the interconnection and the deep integration of the physical and physical worlds and the digital virtual world are gradually realized, thus gradually pushing the manufacturing industry to be intelligent. The connection creates collaboration, the connection produces benefits, the join produces self-organization, and the join produces intelligence.

The free flow of data between the virtual world and the real world creates a "double engine" for the Chinese economy

On May 25, 2016, Premier Li Keqiang attended the "China Big Data Industry Summit and China E-Commerce Innovation and Development Summit" in Guiyang. He pointed out that the innovative concept represented by the big business of big data should be combined with the long-term artisan spirit of traditional industries. The virtual world and the real world merge and develop, reshape the industrial chain, supply chain and value chain, promote the vigorous development of new kinetic energy, revitalize the traditional kinetic energy, build the "double engine" of the Chinese economy, and realize the "double high".

4, the Internet + to achieve automatic flow of data inside and outside the enterprise

Now, the Internet+ has penetrated into the manufacturing industry. Through the Internet+, it can eliminate the distance between enterprises and consumers, realize the commercial activities such as zero-distance interaction marketing, and can also play the role of optimization and integration of the Internet in the allocation of social resources to form a more advanced A new form of production management.

(1) Internet + data flow to achieve zero-distance interaction between manufacturing and consumption

In order to realize the transformation from large-scale manufacturing to personalized customization, Haier began the practice of interconnected factories in 2012, and is committed to creating an on-demand design, on-demand manufacturing, and on-demand delivery systems. Haier has created a user interaction customization platform through “de-intermediation” and “de-productization” and users, and users can remotely view the whole process of production of their own products. In all aspects of custom selection, order circulation, production process, logistics and transportation, users will no longer be passive waiters, but participants and regulators of the whole process. The intelligent interactive customization platform integrates users and enterprises, greatly expanding the scope of enterprise intelligent manufacturing, interconnecting and co-production inside and outside the enterprise, and the relationship between users and enterprises is closer.

(2) Internet + data flow, reconstructing a new mode of enterprise production management

With the rapid increase in labor costs, frequent changes in market demand, fiercer competition, and rapid popularization of new technologies such as digitization, networking, and intelligence, in order to adapt to market development, to meet the intelligent, manufacturing model of individualization, socialization, and agility Needs, the future factory will certainly change the current situation of "small but complete," and will certainly develop to make full use of social resources, including the sharing of orders, personnel, materials and equipment, and will certainly weaken the boundaries between factories. Even overturning the wall between the factory and the society, breaking the closed and independent production mode, and building an open, service-oriented platform, the data will be smooth between the inside and outside of the factory, between man and machine, and between the information system and the machine. The flow of land, the factory is not only the production of products, but also the production data, the data will become the core competitiveness of the enterprise, the factory will no longer be today's factory.

In this regard, Qingdao Haier Mould Company is in front of the industry. In order to solve the contradiction between the ability of enterprise to take orders and the cost of enterprise personnel, the company began to build a “mold cloud design platform” in 2013, in order to achieve full use of social resources and change the closed situation in which all previous work was completed by employees. Now, on this platform, hundreds of external engineers who have passed the skills certification and credit review are active. The company will disassemble the work and publish it on the platform. These engineers called “cloud resources” will meet the technical requirements and prices. The information such as the construction period and the information are remotely received, and after the task is delivered and accepted, the online payment is paid in real time, and the whole work is connected and coordinated through the network. In this way, through the social-collaboration model of “crowdsourcing”, technical personnel of various skills in the society, including state-owned enterprises, foreign-owned enterprises, private enterprises, and students with primary skills in schools, can use their own time resources and intellectual resources. Undertake the work that matches your skills, get the corresponding rewards, and realize the value of your own "surplus wisdom." For enterprises, through the idea of ​​Internet +, without increasing staffing, the human resources of enterprises can be rapidly increased several times or even dozens of times. Enterprises are improving efficiency, reducing costs, market competitiveness, and anti-risk capabilities. In terms of aspects, there has been a qualitative improvement.

This “cloud design platform” is a typical social cooperation model with factory-centric and numerous “cloud resources”. In order to solve the contradiction between supply and demand information opaque and mismatch, and avoid the overcapacity of the factory or the fact that the order can't find a suitable factory, it is necessary to break the “wall” of its own organization and place its own orders, equipment, materials, personnel, etc. The information is shared through a socialized platform, and the socialized collaboration of multi-organizational forms such as enterprise-enterprise, enterprise-individual, and the socialized manufacturing ecosystem of “net” is constructed.

As the business model explored by Qingdao Haier Mould Co., the company will no longer be a relatively closed organization in the future, but an organization that can make full use of social resources, socialized, highly intelligent scheduling and super processing capabilities. The organization does not belong to any enterprise, and can share their processing capabilities anytime and anywhere, to undertake orders from anyone in the world, any organization.

5, smart factory, automatic data flow without limit

In the future, all products are customer-oriented, and the data carrying knowledge flows freely along the direction of product value. From market demand, product development, production planning, production execution, marketing to after-sales service, data is collected, analyzed and decided. Value-added in implementation, virtual and precise mapping, digital virtual world guidance, control of the production of the physical physical world, solving the problems of uncertainty, diversity and complexity in the physical physical world, ensuring the correct data at the right time Send to the right person and machine and perform the correct execution. At the same time, the physical world of the world optimizes the digital virtual world through feedback. The two worlds of the virtual and the real are mutually integrated, conjugated and developed together to achieve intelligent production.

6, the conclusion

Connect digital devices and products to the network and connect all the digital things that can be connected. To realize information integration and connection between enterprise informatization, between devices, between information systems and devices, and between inside and outside enterprises, cyberspace and physical entities are deeply integrated through data flow and promote each other.

Virtual virtual connections, solid connections, virtual and real connections, internal and external connections, networking all digital things that can be connected. The connection creates value and the connection creates a new business model.

The future enterprise is a value-driven enterprise, an enterprise that automatically flows data, and the free and orderly flow of data is the premise and foundation of a smart factory.

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