Big data blockchain communication of Internet of things

1. blockchain. The following is a detailed introction of bitcoin from AEX exchange coin network:
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, the open source software was designed and released, and the P2P network on it was built. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system. Unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation. The decentralized nature of P2P and the algorithm itself can ensure that it is impossible to artificially manipulate the value of bitcoin by mass manufacturing. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million. Bitcoin can be cashed and converted into the currency of most countries. Users can use bitcoin to buy some virtual goods, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life goods.

2.

1. What is the Internet of things

in fact, in a simple way, big data is to assist decision-making by analyzing and mining a full amount of non sampling data

the characteristics of big data

big data refers to the massive, high growth rate and diversified information capital that needs new data processing mode to collect, store, manage and analyze its content for the purpose of serving decision-making

big data has the following essential characteristics:

1. The fundamental purpose is to serve decision-making. Big data can help all kinds of organizations and indivials greatly improve their decision-making ability and make better decisions and judgments

Big data usually refers to the amount of data above 100t, which is difficult to be calculated effectively by traditional calculation methods, but must rely on new calculation methods and data mining tools

3. High frequency, big data is the data generated by user participation and interaction, according to the user's network traces to timely understand the user's relevant data, this kind of data is high-frequency data calculated by day or even hour. But the traditional data frequency is very low, many data are calculated by month or even by year

Big data is real-time data and can react in real time. For example, entering a keyword in the web search box can instantly present it, while the traditional data collection method is seriously lagging behind

5. Always online. Online is the precondition of big data. From this point of view, big data is always online and can be called at any time. By analyzing the traces of users on various network terminals, big data can better analyze users' behaviors, emotions, thoughts, hobbies and needs, so as to make better decisions and analysis

three key points of big data

first, the availability of data. At present, in China, the development of big data is seriously constrained by the lack of publicity of government information, a lot of data is difficult to obtain, leading to the difficulty of real big data mining and analysis, which requires the government to open more data in time to improve the availability of data

Secondly, the scientific model construction. The scientific nature of the model directly determines the quality of data analysis, which requires a high level of modeling, of course, the more data is concive to the reasonable construction of the model

Third, use experts to refine opinions. The original and high-quality viewpoint based on data mining, which provides the basis for decision-making, highly relies on high-quality data interpretation, which reflects the value of instry experts

provided by IOT media

3. What's the difference between the Internet of things, blockchain and big data
in the near future, the number of devices in the Internet of things will explode, which may be hundreds of billions or trillions. If such a huge network is still managed in a centralized networking mode, the infrastructure investment and maintenance of the data center should be incalculable
in essence, big data belongs to a small branch of database, so this problem is attributed to the relationship between big data and database. Database is a very old research field in software, Internet and it. From the initial file system to ER model, to the three achievements of traditional database, which are known to all, relational model, transaction processing and query optimization, to the rise of NoSQL database after the popularity of Internet, database technology is constantly developing and changing, Then it also includes semi-structured data processing represented by XML and unstructured data processing such as text and voice

it seems that the relationship between blockchain and database is actually such a relationship. From the evolution process of database technology, we can find that it always comes from how to meet new business requirements and then create new data processing technologies. For example, from the beginning of the file system, why do we need the ER model? It is because with the development of the financial instry, people have further requirements for these fast accounting, high concurrency data writing and access, which leads to the emergence and rapid development of the entity relationship model. Why did NoSQL database appear later? It is because the rapid development of the Internet puts forward higher requirements for updating the database, so in essence we think that the whole Internet is a big database
things are always developing. Of course, after we solve the problem of massive real-time data processing on the Internet through NoSQL database and cloud storage, the next problem must come, that is, how to solve the authenticity and effectiveness of data in a large-scale way
for example, it may be related to our diet, from the problem of food and clothing at the beginning, to the problem of nutrition structure, and then to the problem of food safety that everyone is concerned about. The development of database is the same. When we can solve these problems of data storage and data access through ER entity relationship model and NoSQL database, Next, we need to care about and solve the problem of authenticity and effectiveness
so at this stage, these technologies, represented by blockchain, must be a new starting point and new requirements for the authenticity, validity, unforgeability and tamper resistance of data compared with the current database. We can clearly feel that the trend of database and blockchain integration is actually very close and irresistible, just like the movie just mentioned, the procers of content begin to develop in the direction of virtual reality and augmented reality; From the perspective of database, blockchain is a new way of data organization. We believe that big data and blockchain are integrated.

4. I don't know when the Internet of things has been deeply related to the blockchain, and it has become more and more intense this year. Whenever the Internet of things is mentioned, blockchain will follow; When it comes to blockchain, we must also bring the Internet of things into the topic. The public can't help but wonder whether the Internet of things rubs the heat of blockchain, or does the blockchain pull the Internet of things hard to block the "bullet"? Now let's explore

the term "Internet of things" is mentioned almost every day in today's life. Some data show that in 2017, there were about 8.4 billion intelligent devices connected to the Internet, such as thermostats, cameras, street lamps and other electronic procts. According to foreign McKinsey & company data, this number may reach 25 billion by 2025, and the scale of the whole economy will reach 6 trillion US dollars

are you dazzled by such a huge number? Although the Internet of things technology has been widely used all over the world, its defects are graally highlighted

according to the traditional mode, the data center (server) of the equipment manufacturer often collects the information of all connected devices, which determines that the server needs to have strong operation and storage capacity. Moreover, with the geometric growth of Internet of things equipment, the cost of server maintenance will also increase greatly, which makes it difficult for small and medium-sized enterprises to maintain

at the same time, in terms of communication compatibility, the global Internet of things platforms are lack of a unified language, which is easy to cause communication obstacles between multiple Internet of things devices. This is e to the obvious fragmentation of the Internet of things instry, whether it is smart home, smart home appliances, robots, smart cars, etc., the networks they connect are fragmented and closed. In addition, the status quo of the Internet of things instry is still full of mountains, and their influence is relatively limited, so it is difficult to reach a unified standard in a short time

based on this, the standard chain team, after accumulating the previous experience from the Internet of things, combined with the characteristics of blockchain, proposed the concept of Internet of things
the above is reprinted by Internet of things media. If there is any infringement, please delete it

5. You can go to the stock sector to look for big data, which has the concept of stocks.

6. First of all, we need to know exactly what both are before we can combine them

blockchain, which appeared in front of you when bitcoin was born a few years ago, is essentially a distributed data account book. We can see blockchain technology as an underlying code system in the Internet, which is decentralized, open, transparent, anonymous, user-friendly and user-friendly It can't be tampered with. Blockchain basically solves most of the trust problems in the weak trust environment, and has a wide range of applications. It can be combined with almost all fields, and even change the proction relationship of our three proction factors
the Internet of things, literally means "the network connecting things", its core is actually based on the data communication between the Internet and offline sensor devices. The Internet of things can be said to be the proct of the Internet extending offline. If the previous Internet era is a pure online information era, then the Internet of things will bring a new network era of Online + offline combination. All things are interconnected, which will greatly change our proction and life, improve and improve proctivity
then, how can blockchain and Internet of things be combined? Maybe there are different application scenarios in different instries. Recently, I saw a technology company called chaincmop chain computing, which has a smart farming management scheme that uses IOT equipment to monitor farm conditions + blockchain system in agricultural breeding, which is very enlightening. For example, in the future, you can use the Internet of things devices to detect the temperature, humidity and seed status of granary seeds in an all-round way, and these data can be synchronized and encrypted by using the distributed and encrypted features of the blockchain, so that the monitoring data can be more efficiently transmitted to each node, and the monitoring data can be well protected, To avoid tampering in the process of transmission.

7. In the future, jinwowo group will focus on promoting the legal circulation and commercial application of big data with blockchain technology
today's very popular blockchain technology can establish low-cost connections between devices in the Internet of things, and also improve the security and privacy of the system through decentralized consensus mechanism
at the same time, the superposition of blockchain technology and smart contract can turn the internal devices into self maintenance and self-regulation network nodes, which can exchange information, verify identity and trade with strangers on the basis of pre-defined.

8. Talk about my understanding. Blockchain and the Internet of things are very hot now. There are many articles about trends. Yesterday, I reviewed the articles a few years ago, and some of them grasped the trends very well. To get back to business, I personally think it's a process from point, line, surface to three-dimensional. No matter the blockchain or the Internet of things, they connect things that were not closely related in the past through technological innovation, and become a whole of mutual connection and interaction. Connecting to the whole, you can do whatever you want. I hope it will help you.

9. Before the "Internet of things" - billions of years ago, everyday things like refrigerators, bars and lawn sprinklers were silent. According to a recent report entitled "device democracy" from IBM, it is impossible to track and manage these billions of dollars of devices in a centralized way, and such an attempt is not wise; This kind of attempt will make them vulnerable to hackers and government supervision. Distributed registers seem to be a good choice
the Internet of things uses blockchain as a communication bridge between things. In order to achieve this, we can use
the programmability provided by Ethereum, which is not only to let people's property be tracked and registered. It has some new uses. Under various methods and rules, Ethereum blockchain embedded in the car key can be sold or rented to generate a new P2P for renting or sharing cars. Further, some people talk about the application of this technology to make self driving cars a social public resource. Under pre-set proceral rules, such vehicles can store their own digital money to pay for them from renting fuel, repairs and parking spaces.

10. The analysis of Chongqing jinwowo is as follows:
blockchain can also be naturally combined in the field of Internet of things and logistics
through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management
this field is considered as a promising application direction of blockchain.