How to combine the Internet of vehicles with blockchain

1. blockchain is composed of a series of blocks generated by cryptographic algorithm. Each block is filled with transaction records, and the blocks are connected in sequence to form a chain structure, which is the blockchain ledger. Taking bitcoin as an example, when a miner generates a new block, he needs to calculate the new hash value and random number according to the hash value of the previous block, the new transaction block and the random number. In other words, each block is generated on the basis of the previous block data, which ensures the uniqueness of the blockchain data. Because subtle changes in transaction records will completely change the result of hash value, miners can't cheat when they compete for computing power. Each miner must wait for the previous block to generate before they can start to calculate the qualified random number according to the data of the previous block, which ensures the fairness of mining. Blockchain trading platform "currency exchange".

2. Blockchain technology brings new growth possibilities to these fields. For example, in the insurance field, combined with blockchain technology, we can see growth opportunities for reinsurance in the future; In the field of health care, the integration of medical data and file management can also be realized through distributed ledger technology; The combination of supply chain and blockchain technology will create more financing opportunities
all of the above are potential application fields of blockchain technology, but if the first large-scale application field of blockchain technology, I think it will be in the fields of insurance and health care
because the current data in these two fields are very scattered and chaotic, they can be integrated systematically through blockchain technology. In the future, a lot of business opportunities can be found after specific analysis of these data
some excellent digital currencies have begun to appear in China, such as Puyin, a tea standard digital currency launched by Puyin group. Puyin is a high-quality Tibetan tea asset that is stored, identified, evaluated and authorized by three parties, and a standard digital currency that is issued through encryption and digitization.

3.

In recent years, the impact of black technology AI can be described as wave after wave. From dark blue to alphago, people have repeatedly exclaimed at the subtlety of technology and the powerful learning ability of AI

so how will AI combine with blockchain, and what breakthroughs and innovations will it bring

let's look at the evolution of blockchain. From blockchain 1.0 marked by BTC to blockchain 2.0 marked by Ethereum and combined with "smart contract", to blockchain 3.0 marked by EOS with stronger expansibility

as far as BTC is concerned, its function is single. For users, it is nothing more than mining and transfer. So we have an upgraded eth

eth provides a development platform for users to write smart contract publishing applications, but its performance is insufficient and the handling fee is expensive. This is bm's EOS

one of the main reasons why EOS can get people's attention quickly is that it has stronger scalability than Ethereum. It's stable and secure, but "super node power leads to insufficient decentralization" is no more decentralized than eth. In other words, in order to achieve fast enough data processing, it makes a compromise on the degree of decentralization. Then Velas appeared

based on the characteristics of EOS, Velas uses AI to enhance and realize decentralization. By introcing AI (Artificial Intelligence) into the blockchain technology, it solves the disadvantages brought by the rule of man, and automatically adjusts the system through AI to proce the best results without affecting the processing standards of the system, thus recing the cost of consensus

"AI is technological innovation, blockchain is institutional innovation"

4. With the breakthrough of blockchain technology, the smart contract has a chance of rebirth. The smart contract based on blockchain technology can not only give play to the advantages of smart contract in cost efficiency, but also avoid the interference of malicious behavior on the normal execution of the contract. The smart contract is written into the blockchain in digital form, and the characteristics of blockchain technology ensure that the whole process of storage, reading and execution is transparent, traceable and unchangeable; At the same time, the strong security consensus mechanism does not need the intervention of three parties: a set of state machine system is constructed by the consensus algorithm of the blockchain, so that the intelligent contract can run efficiently.

5.

On January 14, 2020, Beijing time, Guangdong Zhongke intelligent blockchain Technology Co., Ltd. successfully held the global open source of the underlying technology of IOT blockchain and the launch conference of the ecosystem service system in Huangpu, Guangzhou. It released the underlying technology platform of IOT blockchain iovblockchain to the whole world, relying on mdpos algorithm and cross chain technology, It has officially become the representative platform of the fourth generation blockchain algorithm technology, and ranked among the top ten blockchain underlying technology platforms in the world. After China Science and Technology Corporation settled in Huangpu, in just two months, the number of patent applications for blockchain technology has reached 11.2% of the number applied by the people's Bank of China, and 1.3% of Alibaba, the world's largest patent application company for blockchain technology. It has become the backbone of Guangzhou Huangpu blockchain instry's successful incubation and participation in global blockchain technology competition. At the press conference, China Science and Technology Corporation, Guangzhou intelligent network automobile demonstration area operation center and Zhenbao Bus Group signed a tripartite agreement on blockchain technology application cooperation, which became another important scene of blockchain technology application in Huangpu District

the technological infrastructure route in the development of blockchain instry is particularly important, including the core content of underlying algorithm ability, open source service ability, ecosystem development ability, instry standardization process and digital chip instry application. After long-term scientific research incubation, China Science and Technology Corporation has completed the open source of the underlying blockchain algorithm and started the ecological service system, and will start the standardization construction of the blockchain of the Internet of vehicles and the design and development of digital chips in 2020. The launch of iovblockchain's open source and ecological services indicates that the underlying technology strength of China's blockchain is changing the global competition pattern of a new generation of information technology. In terms of underlying technology and business ecology, as one of the core technology representatives of blockchain, it leads China's blockchain instry and becomes a Chinese force participating in global competition

the press conference was guided by the instry and Information Bureau of Huangpu District of Guangzhou City and supported by the block chain instry association of Guangzhou City, the block chain alliance of Guangdong, Hong Kong and Macao Dawan District, blockchain 728, Guangdong automotive supplies chamber of Commerce and Internet of vehicles branch. More than 100 representatives from instry organizations and core blockchain enterprises attended the press conference and participated in the technology docking activities

this article comes from the author of auto home, which does not represent the standpoint of auto home

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. 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.

9. 1. The four elements of monetary system are: the determination of monetary materials, the name of currency, monetary unit and price standard, the standard currency and subsidiary currency and their solvency, and the issuance guarantee system
2. At present, countries all over the world generally use the strength of financial asset liquidity as the main basis for dividing monetary levels< The forms of consumer credit include deferred payment, installment payment and consumer loan
4. Under the condition of coexistence of various interest rates, the decisive interest rate is the benchmark interest rate, which is usually the rediscount rate of the central bank in western countries
5. The operating principles of commercial banks are profitability, security and liquidity
6. The balance of autonomous transactions is usually used to judge whether a country's balance of payments is balanced
7. The central bank plays the role of lender of last resort on the premise of centralizing the deposit reserve of commercial banks
8. Investment financial institutions mainly include financial companies, mutual funds and money market mutual funds< According to Keynesian money demand theory, when the income level rises, the money demand of transaction motivation and prevention motivation will increase
1. The so-called "currency in circulation" is the sum of the currency that plays the function of means of circulation and the currency that plays the function of means of payment
2. Short term bonds issued by the state, acceptance bills issued by banks and large amount negotiable certificates of deposit can be realized in various forms such as transfer, discount and mortgage at any time in the money market, which can be transformed into real means of purchase and payment. We call them quasi currency
3. M1 in narrow sense is composed of cash and current deposit, while m2 in broad sense is composed of M1 and quasi currency
4. The creditor who provides commercial credit, in order to guarantee his claim to the debt, holds a kind of written credit certificate, which is called commercial paper
5. The way of issuing securities by the issuers themselves is direct issuance< In a narrow sense, off balance sheet business can be roughly divided into guarantee business, commitment business, loan sale and asset securitization
7. There are window guidance and moral advice in the indirect credit control of monetary policy tools
8. The central bank provides capital payment to commercial banks mainly through refinancing and rediscount< There are commercial banks, savings banks and credit cooperatives
10. According to the delivery time of foreign exchange transactions, the exchange rate can be divided into spot rate and forward rate
11. Since the birth of the monetary system, it has experienced four main forms of monetary system: silver standard system, gold and silver compound system, gold standard system and paper currency system
12. Paper money, bank notes, deposit money and electronic money are all credit money< The basic characteristics of credit are repayability and interest payment
14. Normally, nominal interest rate minus inflation rate can be regarded as real interest rate
15. As a special kind of enterprise, the business object of financial institutions is monetary capital and financial instruments< In 1994, in order to meet the needs of economic development, China established three policy banks, namely, China Development Bank, Export Import Bank of China and Agricultural Development Bank of China
17. In essence, the transaction object of financial market is monetary capital, which needs the help of monetary capital
18. The securities issuing market is also known as the primary market, which complements the securities circulation market and forms a unified securities market
19. The multiple of total deposit and original deposit is usually called deposit multiplier
20. In the balance of payments, when income is greater than expenditure, we call it surplus; On the contrary, when expenditure is greater than income, we call it deficit< Up to now, the basic structure of electronic computer is based on the idea of stored program, which was first developed by Feng; It was proposed by Neumann
22. The minimum configuration of microcomputer hardware includes host, keyboard and display
23. The start-up sequence of microcomputer should follow the sequence of peripherals before host< In microcomputers, the basic unit used to store information is byte
25. Floppy disk write protection prevents data from being modified
26. If 32x32 dot matrix Chinese characters are used, the storage capacity of 3755 dot matrix Chinese characters is 469.375 KB
27. Unsigned binary integer 10101101 is equal to decimal number 173, hexadecimal number AD and octal number 255
28. Given that the ASCII code of capital letter D is 68, the ASCII code of lowercase letter D is 100
29. If the byte in the memory is numbered 0000H ~ ffffh with hexadecimal number, the memory capacity is 65536; The memory capacity of the other microcomputer is 4MB, and its address must be at least 22
30. If a 2.37 million word modern Chinese dictionary is stored on a floppy disk, it needs about 3.62 1.44 MB floppy disks
31; The computer based on Neumann principle consists of five parts: input device, output device, arithmetic unit, controller and memory< There are three types of computer system bus, they are internal bus, system bus and I / O bus
33. Computer software system is divided into system software and application software
34. Multimedia technology has four characteristics: diversity, integration, interaction and digitization
35. The bridge acts on the data link layer of the OSI / RM reference model, and the router acts on the network layer of the OSI / RM reference model
1. Currency refers to a special commodity that is fixed as a general equivalent
2. Exchange rate: the system formed by the state's regulations on the relevant elements of money, the organization and management of money circulation, etc
3. Credit transaction: also known as advance transaction or margin transaction, it is a transaction mode in which the customer only pays a certain amount of margin with his own credit and entrusts the broker to buy or sell securities after obtaining the credit of the securities broker< Keynesian liquidity preference: it refers to people's psychological tendency to hold money with no income but flexible turnover, and its essence is people's demand for money
5. Inflation: under the condition of paper currency circulation, e to the excessive money supply, the purchasing power of money with the ability to pay exceeds the supply of goods, which leads to the continuous depreciation of money and the continuous rise of general price level
6. Base currency is the sum of cash held by the public in circulation and the reserves of the banking system
7. Commercial paper is a kind of written proof of creditor's rights that the creditor who provides commercial credit holds in order to guarantee the claim of debt
8. Rediscount policy: the central bank's policy provisions for commercial banks to apply to the central bank for rediscount of their unmatured bills
9. Interbank lending: the act of mutual financing between banks or between banks and non bank financial institutions in order to meet the need of insufficient temporary capital position
10. The intermediate target of money is between the final target and the operation index, which is the policy variable that the central bank can achieve with a certain degree of spirit after the monetary policy operation and transmission
11. Balance of Payments - a systematic monetary record of a country's total foreign economic transactions in a certain period of time
12. Credit is a kind of borrowing and lending behavior, a unilateral value transfer on the condition of repayment and interest payment, and a special form of value movement
13. Monetary policy is the sum of the policies and measures adopted by the central bank to adjust variables such as money, credit and interest rate in order to achieve its macroeconomic goals
14. Gresham's law, also known as the law of bad money expelling good money, means that in the case of double standard currency system, good money whose actual value is higher than the legal value is expelled from the circulation field, and bad money whose actual value is lower than the legal value is widely circulated in the market
15. Deflation is a concept corresponding to inflation. In western economics, deflation is generally defined as the continuous decline of the overall price level over a period of time
1. Briefly describe the basic functions of money
value scale, circulation means, wealth storage and payment means
2. What is the basic multiplier of money? This paper briefly analyzes the determinants of monetary multiplier
money basic multiplier, also known as money expansion coefficient, is a coefficient used to explain the multiple relationship between the total money supply and the base money. There are five determinants of money multiplier, which are the current deposit legal reserve ratio, the fixed deposit legal reserve ratio, the fixed deposit ratio, the currency ratio and the excess reserve ratio
3. Briefly describe the main factors affecting the exchange rate
a country's economic situation, balance of payments, currency circulation, interest rate and political factors, various policy factors of the government, foreign exchange control, expectation psychology, financial speculation and so on will have an impact on the change of exchange rate< How do commercial banks create credit currency? What factors restrict its ability to create deposit money
credit creation of commercial banks refers to the creation of credit currency by commercial banks through asset business such as loan and securities investment. The premise of credit creation of commercial banks is the implementation of transfer settlement and partial reserve system. The creative ability of commercial banks depends on the size of the original deposit and the influence of the statutory reserve ratio, excess reserve ratio, cash leakage ratio, statutory reserve ratio of fixed deposit and the ratio of current deposit into fixed deposit
5. What is the foundation of modern credit activities? What are the characteristics of modern credit activities
credit is a kind of lending activity, which is the performance of the relationship between creditor's rights and debt. Modern credit activities have the following characteristics: modern credit relationship has become the most common and basic economic relationship in modern economy. Secondly, in the modern economic life, risk and income are matched with each other. Thirdly, in the modern credit activities, credit tools present the trend of diversification. Fourth, modern credit activities increasingly rely on credit intermediaries and their services to rece financing risks and improve financing efficiency
6. Briefly analyze the impact of income and market interest rate on money demand
the level of income is directly proportional to the money demand. Market interest rate is inversely proportional to money demand
7. What are the indicators to determine inflation
consumer price index, wholesale special price index, GDP deflator
8< (1) the determination of monetary materials (2) the name of currency, monetary unit and price standard (3) the standard currency, subsidiary currency and their solvency (4) the issuance guarantee system
10 It shows that Keynesian monetary policy transmission mechanism theory
m ------ r ------ I ------ e ----- y
Keynesian school advocates that the main link in the transmission process is interest rate. The change or adjustment of money supply first affects the rise and fall of interest rate, then changes the investment and total expenditure, and then affects the change of total income
11. What is the base currency? What are the main channels for the central bank to supply the base money
base currency refers to the sum of the cash circulating outside the banking system and the reserves of the banking system. There are three main channels for the central bank to supply base money: (1) to the commercial banks

10. Bitcoin is characterized by decentralization. As long as you have a network and can use your wallet, you can use it regardless of national boundaries. If you don't understand, maybe you can go to Babbitt to find a master.