Industrial iot is to perceive, monitoring, interconnected by man and machine, into a machine and machine, between the peer review by equipment sensed data, and then through the perception of the generic in technology, communication technology, intelligent analysis, made between data and data fusion, penetrated into every link of industrial production, thus greatly improve the efficiency of manufacture, improve product quality, reduce product cost and resource consumption, finally realizes the traditional industry to a new stage of intelligent.Industrial iot involves a wide range of technologies, including sensing, acquisition, communication, protocol and so on.

Sensor technology: low-cost sensors with good performance are the cornerstone of industrial iot applications. The development of industrial iot requires more accurate, more intelligent, more efficient and more compatible sensor technology.Intelligent data acquisition technology is a new direction of sensor technology development.The ubiquity of information puts forward higher requirements for industrial sensors and sensing devices.Specifically, miniaturization: the micro-miniaturization of components, which requires the saving of resources and energy;Intelligent: with self-calibration, self-diagnosis, self-learning, self-decision-making, adaptive and self-organizing artificial intelligence technology;Low power consumption and energy acquisition technology: battery, sunlight, wind, temperature, vibration and other modes of power supply.

Equipment compatibility technology: in most cases, enterprises will build industrial Internet of things based on existing industrial systems. How to realize the compatibility between sensors used in industrial Internet of things and sensors already used in original equipment is one of the problems faced by the promotion of industrial Internet of things.The main index of sensor compatibility is the compatibility of data format and communication protocol.At present, the Profibus and Modus protocols commonly used in industrial fieldbus networks have solved the compatibility problem well, and most industrial equipment manufacturers have developed various sensors and controllers based on these protocols.In recent years, with the application of industrial wireless sensor networks becoming more and more common, wireless shart and ISA100 of current industrial wireless networks are widely used.Both 11a and wIA - PA3 standards are compatible with IEEE802.15.4 wireless network protocol, and provides the tunneling transmission mechanism compatible with the existing communication protocol, enriched the composition and function of the industrial Internet of things system.

Network technology: the network is one of the core components of the industrial Internet of things. Data is transmitted through the network between different levels of the system.The network is divided into wired network and wireless network. The wired network is generally used in the cluster server in the data processing center, the local area network in the factory and part of the field bus control network, which can provide the data transmission channel with high rate and high bandwidth.Industrial wireless sensor network is a new technology that USES wireless technology for sensor networking and data transmission. The application of wireless network technology can greatly reduce the wiring cost of industrial sensors and facilitate the expansion of sensor functions. Therefore, it has attracted the attention of many enterprises and scientific research institutions at home and abroad.Traditional wired network technology is mature and has been applied in many occasions.However, when wireless network technology is applied in industrial environment, it will face the following problems: strong electromagnetic interference in industrial field, open wireless environment makes industrial machines more vulnerable to attack, and some control data needs to be transmitted in real time.Relative to the wired network, industrial wireless sensor network technology is in the stage of development, it has solved the traditional wireless network technology application in industrial field environment, provides the high reliability, high real-time performance and high security, the main technology includes: adaptive frequency hopping, does sexual communication resource scheduling, wireless router, low cost and high precision time synchronization, abnormal network hierarchical data encryption, network monitoring and alarm, and equipment access authentication, etc.

Explosive growth in the information processing technology: industry information, to produce a large amount of data in the process of industrial production is a challenge for industrial iot, how to effectively deal with, analyze, record the data, extracting, the results of industrial production has guidance is the core of the Internet of things industry, also is the difficulty.At present, there are many big data processing technologies in the industry. For example, BW system of SAP solves the problems brought by big data to the production and operation of enterprises to some extent.The development of data fusion and data mining technology also makes mass information processing more intelligent and efficient.Industrial iot pan in perception characteristics make people also became a perceived object, through the analysis of environmental data and user behavior modeling, can realize in the process of production design, manufacture and management between one man and one machine and the machine used a behavior, environment and state of awareness, more truly reflect the details in the process of industrial production, in order to more accurate analysis results.

Technology: all industrial iot security mainly involve data acquisition process of security, network security, information security for enterprise operation and play a key role, for example, in metallurgy, coal, oil and other industries to collect data need long time continuous operation, how to ensure the information in the process of data acquisition and transmission of accurate is the precondition of industrial iot applied to practical production.

Industrial iot application in production process

Manufacturing supply chain management: by using the Internet of things technology, enterprises can timely grasp raw material procurement, inventory, sales and other information, and predict the price trend of raw materials, supply and demand relationship through big data analysis, which is helpful to improve and optimize the supply chain management system, improve the efficiency of supply chain and reduce costs.By applying sensor network technology in the supply chain system, airbus has built the largest and most efficient supply chain system in the global manufacturing industry.

Production process optimization: industrial iot pan in the awareness to improve the production process of detection, real-time parameter acquisition, material consumption monitoring ability and level, through the analysis of the data processing can realize intelligent monitoring, intelligent control, intelligent diagnosis and intelligent decision-making, intelligent maintenance, increase productivity, reduce energy consumption.Iron and steel enterprises use various sensors and communication networks to realize real-time monitoring of the width, thickness and temperature of processed products in the production process, improve product quality and optimize the production process.

Production equipment management: using the sensing technology to health monitoring of production equipment, can timely tracking the usage of various industrial machinery and equipment in the process of production, the data gathered through the network to the data analysis center for processing equipment manufacturers, can effectively machine fault diagnosis, prediction, quickly and accurately locate the cause of the problem, improve the efficiency of maintenance, lower maintenance costs.Through sensors and networks, the equipment is monitored and monitored online and in real time, and the solutions for equipment maintenance and fault diagnosis are provided.

Environmental monitoring and energy management: the integration of industrial iot and environmental protection equipment can realize real-time monitoring of various pollution sources and key indicators of pollution control links in the industrial production process.The sensor network deployed in chemical industry, light industry, thermal power plant and other enterprises can not only monitor the pollution data of enterprises in real time, but also detect the pollution abnormality and stop the corresponding production process through the intelligent data alarm, so as to prevent sudden environmental pollution accidents.Telecom operators have started to promote real-time monitoring solutions for pollution control based on the Internet of things.

Industrial safety production management: "safety production" is the priority among priorities in modern industry.Industrial iot technology by the sensor installed in mining equipment, oil and gas pipelines, miners equipment and other dangerous operations environment, can real-time monitor homework personnel, equipment, machine and environment and so on the safety of state information, comprehensive access to the elements of safety in production environment, to upgrade the existing regulatory network platform for the system, open and multiple platform for the integrated network supervision, effectively to ensure the safety of the industrial production.