CN112053081A - Credit integral adjusting method and device based on block chain and storage medium thereof - Google Patents

Abstract

The invention discloses a credit integral adjusting method, a device and a storage medium thereof based on a block chain, wherein the method comprises the following steps: when a vehicle enters a parking lot, acquiring an original credit score corresponding to the vehicle; when the vehicle leaves the parking lot, acquiring parking records and payment information of the vehicle in the parking lot; sending the parking record and the payment information to the block chain platform; calculating parking points by adopting the parking records and the payment information based on the intelligent contracts on the block chain platform; and calculating a credit integral according to the original credit integral and the parking integral. The invention ensures the safety and uniqueness of the data by storing and maintaining the credit points on the block chain. In addition, through a consensus mechanism of the block chains, the data synchronization consistency of each node is ensured, and the problem that credit points cannot be used across platforms is solved.

Description

A method, device and storage medium for adjusting credit points based on blockchain

technical field

The present invention relates to the technical field of credit points, and in particular, to a method and device for adjusting credit points based on a block chain, and a storage medium thereof.

Background technique

As the report on the construction of the social credit system proposes to strengthen the development of government affairs integrity, business integrity, social integrity, and judicial credibility, the credit ecology is becoming more and more perfect, but there are still some deficiencies in the credit system in many aspects and industries. E.g:

Credit applications are mainly concentrated in the field of personal credit reporting, such as the personal credit reporting system of the central bank, while a mature system has not yet been established in the field of smart parking; the credit systems are relatively independent and cannot be unified, resulting in credit confusion; The credit data of the database is stored in the ordinary database, and this solution cannot solve the data security problems caused when the database server is down or is attacked by hackers and maliciously tampered with data.

When present merchants or enterprises give away points, they will open a point card that belongs to the company only for the user, and the gift points will be stored in the card. These points can only be used within the company and cannot be used across companies. Consumers need to carry different types of loyalty cards, which brings great inconvenience to consumers, and users cannot enjoy the services brought by credit to the greatest extent.

At present, the credit points of merchants or enterprises to users are generally stored in a common database. This storage method needs to build multiple servers according to the number of users to improve the running speed, and the cost is high. In addition, when multiple servers are down due to network problems or heavy traffic, data security and data consistency cannot be guaranteed. Secondly, ordinary databases cannot resist hacker attacks and malicious tampering of data by users.

SUMMARY OF THE INVENTION

The present invention provides a method, device and storage medium for adjusting credit points based on blockchain, which are used to solve the problem that the existing credit point application methods cannot guarantee data security and data consistency, and cannot realize cross-platform credit points. technical issues used.

The present invention provides a method for adjusting credit points based on blockchain, which is applied to an intelligent parking management system. The intelligent parking management system includes a blockchain platform; an intelligent contract is configured on the blockchain platform; the method include:

When the vehicle enters the parking lot, obtain the original credit points corresponding to the vehicle;

When the vehicle leaves the parking lot, obtain the parking record and payment information of the vehicle in the parking lot;

sending the parking record and the payment information to the blockchain platform;

Based on the smart contract on the blockchain platform, use the parking record and the payment information to calculate parking credits;

Credit points are calculated according to the original credit points and the parking points.

Optionally, the step of acquiring the original credit points of the vehicle when the vehicle enters the parking lot includes:

When the vehicle enters the parking lot, obtain the license plate information of the vehicle;

Determine whether the license plate information exists in the blockchain platform;

If it exists, obtain the original credit points corresponding to the license plate information from the blockchain platform;

If not present, calculate the original credit points of the vehicle based on the smart contract.

Optionally, the step of calculating the original credit points of the vehicle based on the smart contract includes:

Obtain the credit line of the user corresponding to the license plate information, and use the credit line to generate the user's basic credit points;

obtain the historical parking information of the vehicle;

Based on the smart contract, use the historical parking information to calculate the historical credit point variable of the vehicle;

The original credit score of the vehicle is calculated using the base credit score and the historical credit score variable.

Optionally, after the step of calculating credit points according to the original credit points and the parking points, the method further includes:

The credit limit of the user corresponding to the vehicle is adjusted by using the smart contract and the credit points.

Optionally, also include:

When the vehicle enters the parking lot, the user is provided with a parking service corresponding to the original credit points.

The present invention also provides a block chain-based credit point adjustment device, which is applied to an intelligent parking management system. The intelligent parking management system includes a block chain platform; the block chain platform is configured with a smart contract; The device includes:

an original credit point acquisition module, used to acquire the original credit points corresponding to the vehicle when the vehicle enters the parking lot;

a parking record and payment information acquisition module, configured to acquire the parking record and payment information of the vehicle in the parking lot when the vehicle leaves the parking lot;

a sending module, configured to send the parking record and the payment information to the blockchain platform;

a parking point calculation module, configured to calculate parking points by using the parking record and the payment information based on the smart contract on the blockchain platform;

A credit point calculation module, configured to calculate credit points according to the original credit points and the parking points.

Optionally, the original credit point acquisition module includes:

The license plate information acquisition sub-module is used to acquire the license plate information of the vehicle when the vehicle enters the parking lot;

a license plate information judging submodule, used to judge whether the license plate information exists in the blockchain platform;

The first original credit score acquisition sub-module is used to obtain the original credit score corresponding to the license plate information from the blockchain platform if it exists;

The second original credit point obtaining sub-module is used to calculate the original credit point of the vehicle based on the smart contract if it does not exist.

Optionally, the second original credit point acquisition sub-module includes:

a user basic credit score generating unit, configured to obtain the user's credit line corresponding to the license plate information, and use the credit line to generate the user basic credit score;

a historical parking information acquisition unit, configured to acquire historical parking information of the vehicle;

a historical credit point variable calculation unit, configured to use the historical parking information to calculate the historical credit point variable of the vehicle based on the smart contract;

An original credit point calculation unit, configured to calculate the original credit point of the vehicle by using the basic credit point and the historical credit point variable.

Optionally, the device further includes:

The credit limit adjustment module is used to adjust the credit limit of the user corresponding to the vehicle by using the smart contract and the credit points.

Optionally, the device further includes:

A parking service providing module, configured to provide the user with a parking service corresponding to the original credit points when the vehicle enters the parking lot.

The present invention also provides a block chain-based credit point adjustment device, the device includes a processor and a memory:

the memory is used to store program code and transmit the program code to the processor;

The processor is configured to execute the blockchain-based credit point adjustment method according to the instructions in the program code.

The present invention also provides a computer-readable storage medium for storing program codes for executing the blockchain-based credit point adjustment method described in any of the above.

It can be seen from the above technical solutions that the present invention has the following advantages: the present invention calculates the license plate credit score of the vehicle when the vehicle enters the parking lot; when the vehicle leaves the parking lot, obtains the parking record and payment information of the vehicle in the parking lot, and Send the parking records and payment information to the blockchain platform, and use the smart contracts and parking records and payment information on the blockchain platform to calculate the parking points generated by the vehicle in the parking lot; combine the license plate credit points and parking points to get User credit points. The present invention ensures the security and uniqueness of data by storing and maintaining credit points on the blockchain. In addition, the consensus mechanism of the blockchain ensures that the data of each node is synchronized and consistent, which solves the problem that credit points cannot be used across platforms.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a flowchart of steps of a method for adjusting credit points based on a blockchain provided by an embodiment of the present invention;

2 is a flowchart of steps of a method for adjusting credit points based on a blockchain provided by another embodiment of the present invention;

3 is a flowchart of steps of a method for obtaining original credit points provided by an embodiment of the present invention;

4 is a flowchart of steps of a method for calculating original credit points provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a dimension related to the calculation of original credit points according to an embodiment of the present invention;

6 is a schematic structural diagram of a parking management system provided by an embodiment of the present invention;

FIG. 7 is a structural block diagram of a block chain-based credit point adjustment device provided by an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide a blockchain-based credit score adjustment method, device, and storage medium, which are used to solve the problem that the existing credit score application method cannot guarantee data security and data consistency, and cannot realize credit score. Technical issues for cross-platform use.

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1. FIG. 1 is a flowchart of steps of a method for adjusting credit points based on a blockchain provided by an embodiment of the present invention.

The invention provides a method for adjusting credit points based on blockchain, which is applied to an intelligent parking management system. The intelligent parking management system includes a blockchain platform; the blockchain is configured with a smart contract, including:

Step 101, when the vehicle enters the parking lot, calculate the original credit points of the vehicle;

In the embodiment of the present invention, a credit parking system needs to be established in advance, which serves as a precondition for users to pick up a car by credit. Each user is regarded as the main body of the credit system, and a basic credit point can be generated for each user. Then, a scoring dimension can be set to perform credit scoring for the user's behavior, and based on the basic credit score, the user's real-time credit score can be calculated. Specifically, the present invention can use the license plate as a dimension to calculate the original credit points of the vehicle before entering the parking lot.

Among them, the original credit points are the credit points of the vehicle before entering the parking lot.

Step 102, when the vehicle leaves the parking lot, obtain the parking record and payment information of the vehicle in the parking lot;

When the vehicle leaves the parking lot, if the vehicle performs a parking operation in the parking lot, payment information corresponding to the parking operation will be generated. Whether the parking operation complies with the specifications and whether the payment is made on time will have an impact on the user's credit points. Therefore, when the vehicle leaves the parking lot, if there is a parking operation, it is necessary to obtain the corresponding parking record and payment information to calculate the credit point change caused by the parking of the vehicle this time.

Step 103, sending the parking record and the payment information to the blockchain platform;

In the embodiment of the present invention, in order to maintain the consistency of credit points on different platforms, the credit points can be calculated, stored and maintained through the blockchain. After the system obtains the parking record and payment information of the vehicle in the parking lot, it can send the parking record and payment information to the blockchain platform for credit point calculation.

Among them, the blockchain system is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. It is a distributed shared ledger and database with the characteristics of decentralization, non-tampering, full trace, traceability, collective maintenance, openness and transparency. These features ensure the "honesty" and "transparency" of the blockchain, laying the foundation for creating trust in the blockchain. The rich application scenarios of the blockchain are basically based on the ability of the blockchain to solve the problem of information asymmetry and achieve collaborative trust and continuous action between multiple subjects. There are also more and more companies applying blockchain technology to solve practical problems, such as: Alibaba uses blockchain technology to prevent problems such as private engraving of official seals and contract fraud; in the insurance field, the use of smart contracts to realize automatic claims settlement of insurance policies, etc.

Step 104, based on the smart contract on the blockchain platform, use the parking record and the payment information to calculate parking points;

In the embodiment of the present invention, the smart contract is written in the dimension of credit score, which specifies the accumulation method of credit score, wherein the dimension of credit score may include monthly report information, parking record, number of defaults, amount of arrears, etc. For example, a smart contract can stipulate that the longer the vehicle monthly insurance recharge period and the more monthly insurance payment amount, the higher the user credit points.

After receiving the parking record and payment information of the vehicle in the parking lot, the blockchain platform can calculate the variable of credit points generated when the vehicle is parked in the parking lot according to the smart contract, that is, the parking points of the vehicle in the parking lot. .

Step 105: Calculate credit points according to the original credit points and the parking points.

By adding the license plate credit points and parking points, that is, adding the credit points before the vehicle enters the parking lot and the point variable generated by the vehicle parking in the parking lot, the actual credit points when the vehicle leaves the parking lot can be obtained.

The invention calculates the vehicle's license plate credit score when the vehicle enters the parking lot; when the vehicle leaves the parking lot, obtains the parking record and payment information of the vehicle in the parking lot, and sends the parking record and payment information to the blockchain platform. The smart contracts and parking records and payment information on the blockchain platform calculate the parking points generated by the vehicle in the parking lot; the license plate credit points and the parking points are combined to obtain the user credit points. The present invention ensures the security and uniqueness of data by storing and maintaining credit points on the blockchain. In addition, the consensus mechanism of the blockchain ensures that the data of each node is synchronized and consistent, which solves the problem that credit points cannot be used across platforms.

Please refer to FIG. 2. FIG. 2 is a flowchart of steps of a method for adjusting credit points based on blockchain provided by another embodiment of the present invention, which specifically includes the following steps:

Step 201, when the vehicle enters the parking lot, obtain the original credit points of the vehicle;

In the embodiment of the present invention, a credit parking system needs to be established in advance, which serves as a precondition for users to pick up a car by credit. Each user is regarded as the main body of the credit system, and a basic credit point can be generated for each user. Then, a scoring dimension can be set to perform credit scoring for the user's behavior, and based on the basic credit score, the user's real-time credit score can be calculated. Specifically, the present invention can use the license plate as a dimension to calculate the original credit points of the vehicle before entering the parking lot.

In one example, as shown in Figure 3, step 201 may include the following sub-steps:

S21, when the vehicle enters the parking lot, obtain the license plate information of the vehicle;

S22, judging whether the license plate information exists in the blockchain platform;

S23, if it exists, obtain the original credit points corresponding to the license plate information from the blockchain platform;

S24, if it does not exist, send the license plate information to the blockchain platform, and calculate the original credit points of the vehicle based on the smart contract.

In the embodiment of the present invention, the parking management system stores the relevant information of some vehicles, including the license plate information and the corresponding credit point information. For this part of the vehicles, when they enter the parking lot, the corresponding original information can be directly obtained according to the license plate information. credit points.

For vehicles that have not been registered in the parking management system, they need to be registered in the parking management system. After the license plate information of the vehicle is detected, a license plate record is generated, and the newly added license plate record is uploaded to the blockchain platform. , the number of defaults and the amount of arrears and other related information to generate original credit points.

In one example, as shown in FIG. 4 , step S24 may include:

S241, obtaining the credit limit of the user corresponding to the license plate information, and using the credit limit to generate user basic credit points;

S242, obtaining historical parking information of the vehicle;

S243, based on the smart contract, use the historical parking information to calculate the historical credit point variable of the vehicle;

S244: Calculate the original credit score of the vehicle by using the basic credit score and the historical credit score variable.

In the embodiment of the present invention, the user's UnionPay credit line can be used as the basic data to generate the user's basic credit points, and then according to the rules of the smart contract, the monthly report information, parking records, the number of defaults, and the amount of arrears are generated according to the historical parking records of the vehicle. Score the user with different quotas, and calculate the historical credit score variables of the vehicle. For example, the historical credit score variables are calculated according to the monthly insurance recharge time of the vehicle and the monthly insurance payment amount. The longer the monthly insurance recharge time, the more the monthly insurance payment amount. The larger the historical credit score variable, the larger the corresponding original credit score.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of dimensions related to original credit point calculation provided by an embodiment of the present invention. As shown in Figure 5, the relevant dimensions of the original credit point calculation include the user's basic credit points, whether it is a monthly insurance car, the total consumption (parking, charging) in the month, the total number of parking/charging times in the month, and whether the reserved parking is fulfilled (including the fulfillment of the contract). and non-compliance, in which non-compliance will reduce user credit) and whether payment is abided by within the specified time period (including non-compliance and non-compliance, in which non-compliance will reduce user credit).

Step 202, when the vehicle leaves the parking lot, obtain the parking record and payment information of the vehicle in the parking lot;

Step 203, sending the parking record and the payment information to the blockchain platform;

Step 204, based on the smart contract on the blockchain platform, use the parking record and the payment information to calculate parking points;

Step 205: Calculate credit points according to the original credit points and the parking points.

Steps 202-205 are the same as steps 102-105, and are not repeated here.

Step 206, using the smart contract and the credit points to adjust the credit limit of the user corresponding to the vehicle.

In the embodiment of the present invention, the credit point variable caused by the parking operation can be updated to the personal credit limit of the corresponding user by communicating with the bank's data center system through the consensus mechanism of the blockchain, thereby affecting the personal credit investigation. Through the method of credit reporting, the user point system can affect more scenarios and improve the credit coverage rate.

In the embodiment of the present invention, after the vehicle enters the parking lot, when the user needs to enjoy the service according to the credit points, the original credit points of the user can be obtained from the blockchain, and the parking management system can assign the corresponding vehicle according to the level of the original credit points Provide corresponding parking services, such as: parking first and then paying, free parking time, reservation of exclusive parking spaces and other services to achieve credit parking services.

In one example, applications such as public accounts, mini programs, and APPs related to the parking management system can be generated, and users can log in to the relevant applications to view vehicle records, payment orders, credit points, and other information.

Please refer to FIG. 6 , which is a schematic structural diagram of a parking management system according to an embodiment of the present invention. As shown in Figure 6, the parking management system includes:

The underlying framework of the blockchain: The underlying framework of the blockchain is built through FISCO BCOS technology. The framework includes four node layout services to improve the stability of the framework.

Blockchain management platform: The blockchain management platform is built with WeBASE technology and interacts with the underlying framework of the blockchain. The platform includes two node layout services, namely two node management services and two signature services; among them, node management The service realizes the interaction between blockchain data and parking platform data; the signature service realizes the custody of the private key of blockchain users.

Application layer: The application layer is the parking platform, which is specifically used to realize parking services, including credit parking, reserved parking, and charging parking, etc.; and to realize user information collection services, including the acquisition of credit points.

Middle layer: The middle layer has nodes such as smart contracts, consensus mechanisms, and message queues, which are used to realize data interaction between the blockchain management platform and the application layer, such as calculating credit points through smart contracts.

The invention calculates the vehicle's license plate credit score when the vehicle enters the parking lot; when the vehicle leaves the parking lot, obtains the parking record and payment information of the vehicle in the parking lot, and sends the parking record and payment information to the blockchain platform, using The smart contracts and parking records and payment information on the blockchain platform calculate the parking points generated by the vehicle in the parking lot; the license plate credit points and the parking points are combined to obtain the user credit points. The present invention ensures the security and uniqueness of data by storing and maintaining credit points on the blockchain. In addition, the consensus mechanism of the blockchain ensures that the data of each node is synchronized and consistent, which solves the problem that credit points cannot be used across platforms.

Please refer to FIG. 7. FIG. 7 is a structural block diagram of a block chain-based credit point adjustment apparatus provided by an embodiment of the present invention.

The present invention provides a credit point adjustment device, which is applied to an intelligent parking management system. The intelligent parking management system includes a blockchain platform; the blockchain platform is configured with a smart contract; the device may specifically include:

an original credit point acquisition module 701, configured to acquire the original credit points corresponding to the vehicle when the vehicle enters the parking lot;

a parking record and payment information acquisition module 702, configured to acquire the parking record and payment information of the vehicle in the parking lot when the vehicle leaves the parking lot;

A sending module 703, configured to send the parking record and the payment information to the blockchain platform;

a parking point calculation module 704, configured to use the parking record and the payment information to calculate the parking point based on the smart contract on the blockchain platform;

The credit point calculation module 705 is configured to calculate the credit point according to the original credit point and the parking point.

In this embodiment of the present invention, the original credit point obtaining module 701 may include:

The license plate information acquisition sub-module is used to acquire the license plate information of the vehicle when the vehicle enters the parking lot;

a license plate information judging submodule, used to judge whether the license plate information exists in the blockchain platform;

The first original credit score acquisition sub-module is used to obtain the original credit score corresponding to the license plate information from the blockchain platform if it exists;

The second original credit point obtaining sub-module is used to calculate the original credit point of the vehicle based on the smart contract if it does not exist.

In this embodiment of the present invention, the second original credit point acquisition sub-module may include:

a user basic credit score generating unit, configured to obtain the user's credit line corresponding to the license plate information, and use the credit line to generate the user basic credit score;

a historical parking information acquisition unit, configured to acquire historical parking information of the vehicle;

a historical credit point variable calculation unit, configured to use the historical parking information to calculate the historical credit point variable of the vehicle based on the smart contract;

An original credit point calculation unit, configured to calculate the original credit point of the vehicle by using the basic credit point and the historical credit point variable.

In this embodiment of the present invention, the apparatus may further include:

The credit limit adjustment module is used to adjust the credit limit of the user corresponding to the vehicle by using the smart contract and the credit points.

In this embodiment of the present invention, the apparatus may further include:

A parking service providing module, configured to provide the user with a parking service corresponding to the original credit points when the vehicle enters the parking lot.

The present invention also provides a block chain-based credit point adjustment device, the device includes a processor and a memory:

the memory is used to store program code and transmit the program code to the processor;

The processor is configured to execute the blockchain-based credit score adjustment method according to the embodiment of the present invention according to the instructions in the program code.

The present invention further provides a computer-readable storage medium, where the computer-readable storage medium is used to store program codes, and the program codes are used to execute the blockchain-based credit point adjustment method according to the embodiment of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the above-described devices and units, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of implementing the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for adjusting credit points based on blockchain, characterized in that it is applied to an intelligent parking management system, and the intelligent parking management system includes a blockchain platform; the blockchain platform is configured with a smart contract; The methods described include: When the vehicle enters the parking lot, obtain the original credit points corresponding to the vehicle; When the vehicle leaves the parking lot, obtain the parking record and payment information of the vehicle in the parking lot; sending the parking record and the payment information to the blockchain platform; Based on the smart contract on the blockchain platform, use the parking record and the payment information to calculate parking credits; Credit points are calculated according to the original credit points and the parking points. 2. The method according to claim 1, wherein the step of acquiring the original credit points of the vehicle when the vehicle enters the parking lot comprises: When the vehicle enters the parking lot, obtain the license plate information of the vehicle; Determine whether the license plate information exists in the blockchain platform; If it exists, obtain the original credit points corresponding to the license plate information from the blockchain platform; If not present, calculate the original credit points of the vehicle based on the smart contract. 3. The method according to claim 2, wherein the step of calculating the original credit points of the vehicle based on the smart contract comprises: Obtain the credit line of the user corresponding to the license plate information, and use the credit line to generate the user's basic credit points; obtain the historical parking information of the vehicle; Based on the smart contract, use the historical parking information to calculate the historical credit point variable of the vehicle; The original credit score of the vehicle is calculated using the base credit score and the historical credit score variable. 4. The method according to claim 3, characterized in that, after the step of calculating credit points according to the original credit points and the parking points, the method further comprises: The credit limit of the user corresponding to the vehicle is adjusted by using the smart contract and the credit points. 5. The method of claim 1, further comprising: When the vehicle enters the parking lot, the user is provided with a parking service corresponding to the original credit points. 6. A blockchain-based credit point adjustment device, characterized in that it is applied to an intelligent parking management system, the intelligent parking management system comprising a blockchain platform; the blockchain platform is configured with a smart contract; The device includes: an original credit point acquisition module, used to acquire the original credit points corresponding to the vehicle when the vehicle enters the parking lot; a parking record and payment information acquisition module, configured to acquire the parking record and payment information of the vehicle in the parking lot when the vehicle leaves the parking lot; a sending module, configured to send the parking record and the payment information to the blockchain platform; a parking point calculation module, configured to calculate parking points by using the parking record and the payment information based on the smart contract on the blockchain platform; The credit point calculation module is used for calculating the sum of the original credit points and the parking points to obtain the credit points. 7. The device according to claim 6, wherein the original credit point acquisition module comprises: The license plate information acquisition sub-module is used to acquire the license plate information of the vehicle when the vehicle enters the parking lot; a license plate information judging submodule, used to judge whether the license plate information exists in the blockchain platform; The first original credit score acquisition sub-module is used to obtain the original credit score corresponding to the license plate information from the blockchain platform if it exists; The second original credit point obtaining sub-module is used to calculate the original credit point of the vehicle based on the smart contract if it does not exist. 8. The device according to claim 7, wherein the second original credit point acquisition sub-module comprises: a user basic credit score generating unit, configured to obtain the user's credit line corresponding to the license plate information, and use the credit line to generate the user basic credit score; a historical parking information acquisition unit, configured to acquire historical parking information of the vehicle; a historical credit point variable calculation unit, configured to use the historical parking information to calculate the historical credit point variable of the vehicle based on the smart contract; An original credit point calculation unit, configured to calculate the original credit point of the vehicle by using the basic credit point and the historical credit point variable. 9. A block chain-based credit point adjustment device, characterized in that the device comprises a processor and a memory: the memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the blockchain-based credit point adjustment method according to any one of claims 1-5 according to the instructions in the program code. 10. A computer-readable storage medium, wherein the computer-readable storage medium is used to store program codes, and the program codes are used to execute the blockchain-based storage medium according to any one of claims 1-5. Credit score adjustment method.

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