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Block chain application and Internet of things example analysis, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

Block chain

Blockchain is a new application mode of computer technology, such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and so on. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain rights and interests between different nodes in the block chain system.

Blockchain is an important concept of Bitcoin, and blockchain is the underlying technology and infrastructure of Bitcoin. It is essentially a decentralized database and serves as the underlying technology for bitcoin. A blockchain is a string of data blocks associated using cryptographic methods, each containing information about a bitcoin network transaction to verify the validity of its information (anti-counterfeiting) and generate the next block.

Internet of things

The Internet of things is not only an important part of the new generation of information technology, but also an important development stage of the "information" era. Its English name is "Internet of things (IoT)". As the name implies, the Internet of things is the Internet of things connected to things. This has two meanings: first, the core and foundation of the Internet of things is still the Internet, which is an extension and expansion of the network on the basis of the Internet; second, its client extends and extends to any object to exchange information and communicate with each other, that is, the exchange of information and communication. The Internet of things is widely used in the integration of networks through communication-aware technologies such as intelligent perception, recognition technology and pervasive computing, so it is called the third wave of the development of the world information industry after computers and the Internet. The Internet of things is the application expansion of the Internet. The Internet of things is not so much a network as a business and application. Therefore, application innovation is the core of the development of the Internet of things, and innovation 2.0 with user experience as the core is the soul of the development of the Internet of things.

Pain point

In the process of long-term development and evolution of the Internet of things, it has encountered the following five pain points: device security, personal privacy, rigid architecture, communication compatibility and multi-agent cooperation.

In terms of device security, the zombie Internet of things (Botnets of Things) created by Mirai was named as the top ten breakthrough technologies in 2017 by the MIT Science and Technology Review. According to statistics, the Mirai botnet has cumulatively infected more than 2 million cameras and other IoT devices, and the DDoS attack launched by it paralyzed Dyn, the US domain name resolution service provider, and many popular websites such as Twitter and Paypal were inaccessible at that time. Then there are the enslavement of IoT devices, botnets that allow them to mine in bitcoin, and the larger and more active http81 botnet.

In terms of personal privacy, the main reason is that the centralized management structure can not prove its innocence, and the relevant time when personal privacy data is leaked occurs from time to time. Recently, the people's Daily reported that 266 cameras in Chengdu were broadcast live on the Internet is a case in point.

In terms of rigid architecture, the current data streams of the Internet of things are summarized into a single central control system. With the continuous evolution of low-power wide area technology (LPWA), it can be predicted that the devices of the Internet of things will grow geometrically in the future, and the cost of centralized services is difficult to afford. According to IBM, the number of IoE devices will exceed 25 billion by 2020.

In terms of communication compatibility, the global Internet of things platform lacks a unified language, which can easily hinder the communication between multiple Internet of things devices and produce a number of competitive standards and platforms.

In the aspect of multi-agent cooperation, at present, many of the Internet of things are self-organizing networks within operators and enterprises. When it comes to collaboration across multiple operators and multiple peers, the cost of establishing credit is high.

Application

With the characteristics of peer-to-peer, open and transparent, secure communication, difficult to tamper and multi-party consensus, blockchain will have an important impact on the Internet of things: the characteristics of multi-center and weak centralization will reduce the high operation and maintenance costs of the centralized architecture. the characteristics of information encryption and secure communication will help to protect privacy, identity rights management and multi-party consensus will help to identify illegal nodes and prevent malicious nodes from accessing and doing evil in time. Relying on the chain structure helps to build a traceable electronic evidence deposit, the distributed architecture and the characteristics of peer-to-peer help to break the shackles of multiple information islands existing in the Internet of things, and promote the horizontal flow of information and multi-party cooperation.

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