With the accelerated integration of the new generation of information technology, represented by the Internet, cloud computing, big data, artificial intelligence and other traditional industries, a new round of global technological revolution and industrial transformation is booming, a new set of mode of production, organisations and business models is emerging. In this context, as the key basis of intelligent manufacturing, industrial internet came into being.

The Industrial Internet is a key network infrastructure with the characteristics of low delay, high reliability and wide coverage to meet the needs of industrial intelligence development, is a new generation of information and communication technology and advanced manufacturing industry in-depth integration of the formation of a new form of business and application model.

The development of the Industrial Internet is timely

With the“Return to manufacturing” economic development concept represented by the United States, the new industrial revolution with intelligent manufacturing as the core has become an important direction for the development of various countries, developed countries and major economies have put forward the transformation and upgrading strategy of manufacturing industry, vigorously develop industrial intelligent manufacturing. The most representative are the German “Industry 4.0” strategy and the American “Advanced Manufacturing Country” strategy.

Our country attaches great importance to the development of the Industrial Internet, since 2015, the state has issued a series of policy documents, these include the State Council's guidance on actively promoting the“Internet plus” initiative (State Council guidance on deepening the Integrated Development of the manufacturing sector and the Internet, No. 40) , the State Council's guidance on deepening the integrated development of the manufacturing sector and the Internet (state council guidance on deepening the“Internet plus Advanced Manufacturing Industry” initiative, No. 28) , and the State Council's guidance on the development of the Industrial Internet, etc. , encourage and promote the development and application of industrial internet in our country. In addition, in order to implement State Council policy, the Ministry of Industry and Information Technology of the People's Republic of China has issued documents and plans including the action plan for the development of the Industrial Internet (2018-2020) , the guide for the construction and promotion of Industrial Internet platforms, and the evaluation method for industrial Internet platforms, actively promote the development of industrial internet in our country.

Under the guidance of various national policies, the informatization level of our country's manufacturing industry has been greatly enhanced, and significant progress has been made in digitalization, networking and intelligentization of key industries. According to statistics from the Ministry of Industry and Information Technology, in 2017, the penetration rate of digital R & D and design tools, the rate of NC of key processes, the rate of digitalization of production equipment and the rate of networking of digital equipment for industrial enterprises of above scale reached 63.3% , 46.4% , 44.8% and 39% respectively, has cultivated a batch of industrial internet platform, the manufacturing industry intelligence dominant characteristic is day by day obvious, our country industrial internet vigorous development.

Industrial ecosystem moves towards intelligent and efficient

A striking feature of the industrial internet is that by building ubiquitous, low-latency, high-reliability networks, connecting all kinds of equipment, materials, systems, workers in the factory and all links of the supply chain, such as products, warehousing, logistics and users outside the factory, to realize the ubiquitous interconnection of each link and the smooth flow of data, so as to form an intelligent and efficient industrial ecosystem.

The industrial Internet network connection can not be separated from all kinds of communication technology. At present, the vast majority of communication technologies used in industry are still wired, including a variety of proprietary Industrial Ethernet and fieldbus Technologies; Wireless technology has become an important supplement to wired technology because of its good mobility.

Wireless technology is a revolutionary technology to reduce the cost of industrial measurement and control system and expand the scope of application, more suitable for application in high temperature, high noise, remote areas and not suitable for manual operation of the environment, can greatly improve production efficiency. Emerson calculates that wireless technology can reduce device costs by 60% , reduce device management time by 65% and save 95% of cabling space. Wireless technology is an important supplement to all kinds of industrial wired technology, and has become an important development direction of industrial Internet network connection.

Wireless technology drives industrial internet

Currently, wireless technologies for Industrial Internet applications fall into two broad categories:

One is short-range communication technology. Short-distance communication technology is the most widely used wireless communication technology in industry, it mainly includes the traditional short-range communication technologies such as WLAN, Bluetooth and RFID, and the special short-range communication technologies for industrial applications such as WirelessHART, Zigbee, ISA100.11 A and WIA-PA.

Micro-power short-range wireless transmitter equipment is generally used in one-way or two-way low-power short-range communication, with wide coverage frequency, wide range of use, a large number of equipment characteristics, at the same time, it has the advantages of low price, mobile flexibility and easy networking, so it is widely used in many aspects of industrial production and manufacturing. With the development of automation and intelligence in industrial production, the application of micro-power short-range wireless transmitter in industrial internet will become more and more extensive.

The other is wide area network communication technology. With the increasing demand of wireless communication in industry, cellular mobile communication technology and low-power WAN technology based on cellular technology have been applied in industry.

At present, the Wide Area Network (WAN-RRB- communication technology applied in industry inclu2Gs3Gg4Gg/4g cellular communication technology and low-poWAN wan technology represented by NB-IoT, eMMultefirefiLoraLoRa and so on. Low-power wan is a kind of IOT communication technology which can realize low-bandwidth, low-power, long-distance and large-connection.

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In addition, the fifth generation mobile communication technology standard also has two scenarios: low power consumption large connection (mMTC) and Low Delay High Reliability (URLLC) , this paper focuses on solving the problem that the traditional mobile communication technology can not support the application of iot and vertical industry well. With the continuous advancement and development of 5G technology standards, industrial internet can use 5G technology as a means of communication and connection, with the development of 5G technology, promote the wider use of wireless technology in the Industrial Internet.

The Industrial Internet is an important foundation for building a manufacturing and cyber power, and a strong support for building a Xiaokang and modern socialist country in all respects. In the future, with the development of factory information and intelligence, there will be more and more industrial scenarios need to adopt wireless technology and wireless devices. The continuous development and progress of wireless technology will further promote the development of manufacturing industry and bring new impetus to the development of Industrial Internet.

Source: China Industrial Economy Information Network

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