Eight areas of support networking

2010, the IBM Greater China Research and Development Center open Day activities, through the use of some of the key technical areas to explore and envision the world of things online. IBM Greater China Chief technology officer, IBM China Research Institute Dean Li in an interview, said, "The focus of the Internet of Things is this" net "word, network than things to come to a lot of important, if the future of life only things do not have nets, that future development we will not dare to imagine." In the years of research and accumulation and time, IBM refined the eight-storey internet of things reference Lingyu. ”

From the level of the dimensional understanding, in most cases, there is certainly a certain dependency between these eight domains, and from the dimension of the domain, they can be meshed, because information is sometimes not required to be passed between them in order to pass and process, so it is called the concept of the domain.

Sensor/Actuator Layer (domain)
Any object in the Internet of things has to get the relevant information through the perceptual device and transmit the sensed information to all the necessary devices or systems. The sensor/actuator layer is the most direct contact with the surrounding objects. In addition to the traditional sensor functions, sensors also have some basic local processing capabilities, so that the information transmitted is the most needed by the system, so that the use of the transfer network more optimization.

Second, the Sensor network layer (domain)
This is the network formed between the sensors. These networks may be based on public protocols, such as IP addresses, and may also have some proprietary protocols. The purpose is to enable the sensor to interconnect and transmit the sensing information.

Third, sensor gateway layer (domain)
As the objects in the world of things are in every physical entity around us, the amount of information we perceive will be immense and varied. If the sensor transmits this information directly to the desired system, it will cause great pressure and unnecessary waste of resources to the network. So the best way is to filter the information through a certain degree of Gateway, protocol conversion, information compression and encryption, etc., so that the information is more optimized and safe to pass on the public network.

Iv. wide-area network layer (domain)
The main purpose of this layer is to pass the information of the perceptual layer to the system needing information processing or business application. You can use IPV4 or IPV6 protocols.

V. Application gateway Layer (domain)
In order to make better use of network resources and optimize the process of information processing, a local or regional application gateway is set up in the process of transmission. There are two purposes, the first is information aggregation and distribution, the second is to carry out some simple processing and business applications, maximize the use of it and communication resources, improve information transmission and processing capabilities, improve reliability and sustainability.

Vi. Service Platform Layer (domain)
Service platform layer is to make different service delivery mode to implement, at the same time in the world of things in the information processing aspects of the common functions of the optimization, ease the traditional application system or application system integration platform pressure. In this way, the application system does not need to make big changes because of the appearance of the internet of things, and can make full use of the existing business application system to support the application of the IoT.

VII. Application layer (domain)
The application layer includes a variety of application processing systems that are required for different businesses or services. These systems use the sensing information to process, analyze, perform different business, and feedback the processing information to the sensor for updating, brush blame you want to serve and the end user to provide services, so that the entire network of things are more continuous and intelligent. These business application systems are generally the IT application systems that are hosted or shared within or outside the enterprise.

VIII. Analysis and Optimization layer (domain)
In the world of IoT, from the point of view of the business value of information and it information processing, the biggest difference between it and the Internet is information and quantity. The information of the Internet of Things is vast, the information is massive, in this case how to use the information to serve us better, is based on the information analysis and optimization. Traditional business intelligence is also the analysis of information and business decision-making, but in the internet of things, based on traditional business intelligence and data analysis is not enough, so need more intelligent analytical ability, based on mathematical and statistical models for analysis, simulation and prediction. The more information there is, the greater the need for better optimization to bring value.