CN109146648B - Competitive bidding method and terminal based on block chain - Google Patents
Competitive bidding method and terminal based on block chain Download PDFInfo
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Abstract
The invention discloses a competitive bidding method and a terminal based on a block chain, wherein competitive bidders can realize competitive bidding through a competitive bidding terminal, the operation is convenient, the operation is not required to be entrusted, the competitive bidding can be carried out without arriving at the site, and the limitation that the traditional competitive bidding needs the same time and the same place is solved; meanwhile, a bidding reference price is provided for bidders through a preset bidding price prediction model, a reliable and reasonable reference bidding price meeting legal requirements is provided for bidders, bidding is realized through a block chain intelligent contract, the bidding price of each bidding terminal is stored into a block chain, safety and reliability are realized, bidding rules and bidding rules are not removable, and the disclosure, fairness and justice of the whole bidding process are ensured.
Description
Technical Field
The invention relates to the field of competitive bidding type social finance, in particular to a competitive bidding method and terminal based on a block chain.
Background
The capital of the people is strong, the finance of the people is very active, one of the finance in a mutual-aid mode is the most common, and common people can mutually help and mutually benefit when meeting the urgent needs of marriage, illness, covering a room, doing business and the like. Usually, a plurality of people are invited by a sponsor to participate, the sponsor takes the appointment at the appointed time according to the appointed time, a certain amount of meeting money is paid each time, and the meeting money is handed to one person in turn. The sponsor uses the first meeting money preferentially for free, and then adopts a bidding mode in each period, namely, each person writes one bid with a paper slip, and the bid is not known to each other and is put into a box, and the sponsor publishes the result, so that the person with higher price can win the bid, and the person with the same price can draw lots. The bidder can use the fund and complete a cycle after all members bid. The benefits of this approach are: can be stored in idle time, can compete for bidding in emergency time and fully utilize fund.
However, the bidding method has many disadvantages: the competitive bidding needs to arrive at the site, be held at the same time and place, depend on the geographic position and time, cannot arrive at the site, and also need to entrust other people to carry out; the possibility that the initiator has the dark box operation, such as the false price of the serial member, cannot be cleared by self; for the bidding price, the bidder can only decide the bidding price, the historical bidding price cannot be checked, no reference bidding price is provided for the bidder to refer to, and the bidding cannot be controlled, so that high profit and loan and illegal funding behaviors can be generated, and the bidding price cannot be guaranteed to be within the legal permission range.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the competitive bidding method and terminal based on the block chain are convenient to operate, safe and reliable.
In order to solve the technical problems, the invention adopts a technical scheme that:
a competitive bidding method based on a block chain comprises the following steps:
s1, the Ether house client receives the bidding rule sent by the server, generates a corresponding intelligent contract according to the bidding rule, pushes the intelligent contract to the block chain, and receives the block chain address of the intelligent contract and the application program binary interface ABI;
s2, the server constructs a bidding terminal set comprising a plurality of bidding terminals;
s3, the server receives bidding requests sent by the bidding terminals, respectively calculates corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sends the bidding reference prices to the corresponding bidding terminals;
s4, the server receives the bidding price which is sent by each bidding terminal in the bidding terminal set and is determined according to the corresponding bidding reference price, and sends the bidding price to the Etherhouse client;
s5, the Etherhouse client sends the bidding price to the intelligent contract on the blockchain through the blockchain address of the intelligent contract and an application program binary interface (ABI),
s6, the Ether house client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price, and sends the bidding result to the server;
and S7, the server respectively sends the bidding results to each bidding terminal in the bidding terminal set.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a block chain based bidding terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
s1, sending bidding rules to the Etherhouse client, so that the Etherhouse client generates corresponding intelligent contracts according to the bidding rules, pushes the intelligent contracts to a block chain, and receives the block chain address of the intelligent contracts and an application program binary interface ABI;
s2, constructing a bidding terminal set comprising a plurality of bidding terminals;
s3, receiving bidding requests sent by each bidding terminal, respectively calculating to obtain corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sending the bidding reference prices to the corresponding bidding terminals;
s4, respectively receiving a bidding price determined according to the corresponding bidding reference price sent by each bidding terminal in the set of bidding terminals, sending the bidding price to the etherhouse client, so that the etherhouse client sends the bidding price to an intelligent contract on a blockchain through a blockchain address of the intelligent contract and an application binary interface ABI, and the etherhouse client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price;
and S5, receiving bidding results sent by the Etherhouse client, and respectively sending the bidding results to each bidding terminal in the bidding terminal set.
The invention has the beneficial effects that: the bidders can realize bidding through the bidding terminals, the operation is convenient, the consignment is not required, the bidding can be carried out without arriving at the site, and the limitation that the traditional bidding needs the same time and the same place is solved; meanwhile, a bidding reference price is provided for bidders through a preset bidding price prediction model, a reliable and reasonable reference bidding price meeting legal requirements is provided for bidders, bidding is realized through a block chain intelligent contract, the bidding price of each bidding terminal is stored into a block chain, safety and reliability are realized, bidding rules and bidding rules are not removable, and the disclosure, fairness and justice of the whole bidding process are ensured.
Drawings
Fig. 1 is a flowchart of a bidding method based on a block chain according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bidding terminal based on a block chain according to an embodiment of the present invention;
description of reference numerals:
1. a competitive bidding terminal based on a block chain; 2. A memory; 3. A processor.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the method comprises the steps of constructing a bidding terminal set comprising a plurality of bidding terminals, respectively generating corresponding bidding reference prices for each bidding terminal according to a preset bidding prediction model, realizing bidding through a block chain intelligent contract, and storing the bidding prices sent by each bidding terminal into a block chain.
Referring to fig. 1, a bidding method based on a block chain includes the steps of:
s1, the Ether house client receives the bidding rule sent by the server, generates a corresponding intelligent contract according to the bidding rule, pushes the intelligent contract to the block chain, and receives the block chain address of the intelligent contract and the application program binary interface ABI;
s2, the server constructs a bidding terminal set comprising a plurality of bidding terminals;
s3, the server receives bidding requests sent by the bidding terminals, respectively calculates corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sends the bidding reference prices to the corresponding bidding terminals;
s4, the server receives the bidding price which is sent by each bidding terminal in the bidding terminal set and is determined according to the corresponding bidding reference price, and sends the bidding price to the Etherhouse client;
s5, the Etherhouse client sends the bidding price to the intelligent contract on the blockchain through the blockchain address of the intelligent contract and an application program binary interface (ABI);
s6, the Ether house client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price, and sends the bidding result to the server;
and S7, the server respectively sends the bidding results to each bidding terminal in the bidding terminal set.
As can be seen from the above description, the beneficial effects of the present invention are: the bidders can realize bidding through the bidding terminals, the operation is convenient, the consignment is not required, the bidding can be carried out without arriving at the site, and the limitation that the traditional bidding needs the same time and the same place is solved; meanwhile, a bidding reference price is provided for bidders through a preset bidding price prediction model, a reliable and reasonable reference bidding price meeting legal requirements is provided for bidders, bidding is realized through a block chain intelligent contract, the bidding price of each bidding terminal is stored into a block chain, safety and reliability are realized, bidding rules and bidding rules are not removable, and the disclosure, fairness and justice of the whole bidding process are ensured.
Further, the generating a corresponding intelligent contract according to the bidding rule in step S1, and pushing the intelligent contract to the blockchain specifically includes:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
and testing the intelligent contract binary code through the private Ethernet shop network node, and if the test is passed, pushing the intelligent contract binary code to a block chain.
According to the description, the private Ethernet workshop network node is started to receive the intelligent contract binary code generated according to the bidding rule, the binary code is tested, and the test is sent to the block chain after the binary code passes, so that the safety and the reliability of the operating environment of the intelligent contract are guaranteed.
Further, the step S3, according to a preset bidding price prediction model, respectively calculating, for each bidding terminal in the set of bidding terminals, a corresponding bidding reference price specifically includes:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, carrying out deep analysis on the data, and establishing a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
and correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal.
According to the description, the reliability, the accuracy and the reasonability of the bidding reference price corresponding to each bidding terminal obtained by calculation are ensured by the bidding prediction model obtained by comprehensively considering the factors of all aspects, and a reliable and reasonable reference is provided for bidders.
Further, the bidding price sent by each bidding terminal in the bidding terminal set in step S4 is encrypted and signed by the private key of the corresponding bidding terminal.
As can be seen from the above description, before the bidding terminal sends the corresponding bidding price, the bidding terminal encrypts and signs the bidding price with the bidding terminal private key, so as to ensure the safety and reliability of the sent bidding price.
Further, the receiving of the bidding result obtained by the intelligent contract according to the bidding rule and the bidding price in step S6 specifically includes:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
and receiving the bidding result.
It can be known from the above description that the ethernet workshop node reads the intelligent contract binary code and the bidding price on the block chain, runs the intelligent contract binary code in a semi-Turing-complete manner, implements the bidding process, gives the bidding result, implements the bidding process through a decentralized running environment, and runs the intelligent contract code in a semi-Turing-complete manner by the ethernet workshop node, thereby not only ensuring the safety and reliability of the bidding process, but also ensuring the accuracy and reliability of the bidding result.
Referring to fig. 2, a bidding terminal based on a block chain includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the following steps:
s1, sending bidding rules to the Etherhouse client, so that the Etherhouse client generates corresponding intelligent contracts according to the bidding rules, pushes the intelligent contracts to a block chain, and receives the block chain address of the intelligent contracts and an application program binary interface ABI;
s2, constructing a bidding terminal set comprising a plurality of bidding terminals;
s3, receiving bidding requests sent by each bidding terminal, respectively calculating to obtain corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sending the bidding reference prices to the corresponding bidding terminals;
s4, respectively receiving a bidding price determined according to the corresponding bidding reference price sent by each bidding terminal in the set of bidding terminals, sending the bidding price to the etherhouse client, so that the etherhouse client sends the bidding price to an intelligent contract on a blockchain through a blockchain address of the intelligent contract and an application binary interface ABI, and the etherhouse client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price;
and S5, receiving bidding results sent by the Etherhouse client, and respectively sending the bidding results to each bidding terminal in the bidding terminal set.
As can be seen from the above description, the beneficial effects of the present invention are: the bidders can realize bidding through the bidding terminals, the operation is convenient, the consignment is not required, the bidding can be carried out without arriving at the site, and the limitation that the traditional bidding needs the same time and the same place is solved; meanwhile, a bidding reference price is provided for bidders through a preset bidding price prediction model, a reliable and reasonable reference bidding price meeting legal requirements is provided for bidders, bidding is realized through a block chain intelligent contract, the bidding price of each bidding terminal is stored into a block chain, safety and reliability are realized, bidding rules and bidding rules are not removable, and the disclosure, fairness and justice of the whole bidding process are ensured.
Further, the generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to the block chain specifically includes:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
and testing the intelligent contract binary code through the private Ethernet shop network node, and if the test is passed, pushing the intelligent contract binary code to a block chain.
According to the description, the private Ethernet workshop network node is started to receive the intelligent contract binary code generated according to the bidding rule, the binary code is tested, and the test is sent to the block chain after the binary code passes, so that the safety and the reliability of the operating environment of the intelligent contract are guaranteed.
Further, the step of respectively calculating, according to a preset bidding price prediction model, a corresponding bidding reference price for each bidding terminal in the bidding terminal set specifically includes:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, carrying out deep analysis on the data, and establishing a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
and correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal.
According to the description, the reliability, the accuracy and the reasonability of the bidding reference price corresponding to each bidding terminal obtained by calculation are ensured by the bidding prediction model obtained by comprehensively considering the factors of all aspects, and a reliable and reasonable reference is provided for bidders.
Further, the bidding price sent by each bidding terminal in the bidding terminal set is encrypted and signed by the private key of the corresponding bidding terminal.
As can be seen from the above description, before the bidding terminal sends the corresponding bidding price, the bidding terminal encrypts and signs the bidding price with the bidding terminal private key, so as to ensure the safety and reliability of the sent bidding price.
Further, the receiving of the bidding result obtained by the intelligent contract according to the bidding rule and the bidding price specifically includes:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
and receiving the bidding result.
It can be known from the above description that the ethernet workshop node reads the intelligent contract binary code and the bidding price on the block chain, runs the intelligent contract binary code in a semi-Turing-complete manner, implements the bidding process, gives the bidding result, implements the bidding process through a decentralized running environment, and runs the intelligent contract code in a semi-Turing-complete manner by the ethernet workshop node, thereby not only ensuring the safety and reliability of the bidding process, but also ensuring the accuracy and reliability of the bidding result.
Example one
Referring to fig. 1, a bidding method based on a block chain includes the steps of:
s1, the Ether house client receives the bidding rule sent by the server, generates a corresponding intelligent contract according to the bidding rule, pushes the intelligent contract to the block chain, and receives the block chain address of the intelligent contract and the application program binary interface ABI;
generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to the block chain specifically comprises:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
testing the intelligent contract binary code through the private Ethernet shop network node, and pushing the intelligent contract binary code to a block chain if the test is passed;
s2, the server constructs a bidding terminal set comprising a plurality of bidding terminals;
s3, the server receives bidding requests sent by the bidding terminals, respectively calculates corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sends the bidding reference prices to the corresponding bidding terminals;
the step of respectively calculating and obtaining the corresponding bidding reference price for each bidding terminal in the bidding terminal set according to a preset bidding price prediction model specifically comprises the following steps:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number is established through a depth analysis algorithm;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal;
s4, the server receives the bidding price which is sent by each bidding terminal in the bidding terminal set and is determined according to the corresponding bidding reference price, and sends the bidding price to the Etherhouse client;
the bidding price sent by each bidding terminal in the bidding terminal set is encrypted and signed by a private key of the corresponding bidding terminal;
s5, the Etherhouse client sends the bidding price to the intelligent contract on the blockchain through the blockchain address of the intelligent contract and an application program binary interface (ABI);
s6, the Ether house client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price, and sends the bidding result to the server;
s7, the server sends the bidding results to each bidding terminal in the bidding terminal set respectively;
wherein, receiving the bidding result obtained by the intelligent contract according to the bidding rule and the bidding price specifically comprises:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
and receiving the bidding result.
Example two
Referring to fig. 2, a bidding terminal 1 based on a block chain includes a memory 2, a processor 3 and a computer program stored on the memory 2 and executable on the processor 3, where the processor 3 implements the following steps when executing the computer program:
s1, sending bidding rules to the Etherhouse client, so that the Etherhouse client generates corresponding intelligent contracts according to the bidding rules, pushes the intelligent contracts to a block chain, and receives the block chain address of the intelligent contracts and an application program binary interface ABI;
generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to the block chain specifically comprises:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
testing the intelligent contract binary code through the private Ethernet shop network node, and pushing the intelligent contract binary code to a block chain if the test is passed;
s2, constructing a bidding terminal set comprising a plurality of bidding terminals;
s3, receiving bidding requests sent by each bidding terminal, respectively calculating to obtain corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sending the bidding reference prices to the corresponding bidding terminals;
the step of respectively calculating and obtaining the corresponding bidding reference price for each bidding terminal in the bidding terminal set according to a preset bidding price prediction model specifically comprises the following steps:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number is established through a depth analysis algorithm;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal;
s4, respectively receiving a bidding price determined according to the corresponding bidding reference price sent by each bidding terminal in the set of bidding terminals, sending the bidding price to the etherhouse client, so that the etherhouse client sends the bidding price to an intelligent contract on a blockchain through a blockchain address of the intelligent contract and an application binary interface ABI, and the etherhouse client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price;
the bidding price sent by each bidding terminal in the bidding terminal set is encrypted and signed by a private key of the corresponding bidding terminal;
receiving a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price specifically comprises:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
receiving the bidding result;
and S5, receiving bidding results sent by the Etherhouse client, and respectively sending the bidding results to each bidding terminal in the bidding terminal set.
EXAMPLE III
In this embodiment, the bidding method based on the block chain is applied to an actual application scenario, where the application scenario is bidding for a bidding party, and the specific implementation method is as follows:
s1, the Ether house client receives the bidding rule, generates a corresponding intelligent contract according to the bidding rule, pushes the intelligent contract to the block chain, and receives the block chain address of the intelligent contract and the application program binary interface ABI;
the bidding rule is a bidding rule obtained by a person with a higher price, namely, the initiator obtains the bidding in the first bidding period, and the bidder with the highest bidding price obtains the bidding in the second bidding period;
generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to the block chain specifically comprises:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
the intelligent contract is sent to a web3.js, the intelligent contract is compiled through the web3.js, the SOL is used for generating a corresponding intelligent contract binary code, the web3.js is a javascript library provided by the Etherns, encapsulates JSON RPC API of the Etherns, and provides a series of javascript objects and functions interacting with a block chain, including network state viewing, local account viewing, transaction and block viewing, transaction sending, compiling/intelligent contract deployment, intelligent contract adjustment and the like;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
testing the intelligent contract binary code through the private Ethernet shop network node, and if the test is passed, pushing the intelligent contract binary code to a block chain, wherein the private Ethernet shop network node tests the intelligent contract binary code by using testpc to ensure the correctness of the intelligent contract binary code, and after the test is passed, deploying the intelligent contract binary code on a network, issuing the intelligent contract binary code to the Ethernet shop network node on a public network, triggering the Ethernet network node to generate an intelligent contract according to the intelligent contract binary code, and pushing the intelligent contract to the block chain;
s2, the server constructs a bidding terminal set comprising a plurality of bidding terminals;
during specific implementation, each bidding terminal is provided with an APP for bidding, the bidding terminals interact with the server through the APP, the bidding terminals can be mobile phones, pads and tablet computers, bidding initiators can invite other bidding terminals through the APP, and if the other bidding terminals accept the invitation within a preset time, the bidding terminals accepting the invitation form a bidding terminal set;
after the bidding terminal set is successfully constructed, the server uniformly sends a bidding notice to each bidding terminal in the bidding terminal set within a preset bidding time, and bidders can apply for bidding through respective bidding terminals;
s3, the server receives bidding requests sent by the bidding terminals, respectively calculates corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sends the bidding reference prices to the corresponding bidding terminals;
the step of respectively calculating and obtaining the corresponding bidding reference price for each bidding terminal in the bidding terminal set according to a preset bidding price prediction model specifically comprises the following steps:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
specifically, by analyzing factors such as income characteristics, risk characteristics and periodic characteristics of financial assets of different types, investment and financing strategies of the financial assets of different types are generated, and market weights of the financial assets of different types are determined, wherein the market weights are income characteristic coefficients + risk characteristic coefficients + periodic characteristic coefficients, the income characteristic coefficients are determined according to the income characteristics, the income is higher, the corresponding income characteristic coefficients are larger, the risk characteristic coefficients are determined according to the risk characteristics, the risk is higher, the corresponding risk characteristic coefficients are smaller, the periodic characteristic coefficients are determined according to the periodic characteristics, and the corresponding periodic characteristic coefficients are smaller when the period is longer;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, carrying out deep analysis on the data, and establishing a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number;
specifically, based on the market weights of the different types of financial assets, deep analysis is performed on the collected data of the different types of financial assets for preset times through algorithms such as clustering, classification, regression, time sequence and the like, a prediction model of the percentage of the bidding price and the highest bidding price and the bidding period number is established, and the established prediction model is as follows:
in the formula, u represents the percentage of bidding price to the highest bidding price, x represents the bidding period number, and a is an adjusting coefficient;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
specifically, the highest bid price is monthly rate (total people-1) meeting money/(2 + monthly rate (live meeting people-1));
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
the covariance matrix is
Wherein xm1, xm2, … … and xmn are bidding competitions of the n bidding terminals in the mth bidding periodA price;
determining the bidding and financing type of the bidding according to the bidding period number, wherein if the bidding period number is m period in total, the bidding in the first m/2 period is financing behavior, and the bidding in the last m/2 period is investment behavior;
determining the investment and financing targets of users corresponding to each bidding terminal according to the user portraits corresponding to each bidding terminal in the bidding terminal set, wherein the user portraits corresponding to the bidding terminals comprise factors such as the age of bidders, historical bidding records on the app, credit scores, risk preferences, family states, investment and financing time and the like, and determining the investment and financing targets for the bidders by analyzing the user portraits corresponding to the competitive terminals;
specifically, the user point of the user corresponding to each bidding terminal is calculated, wherein the user point is the age point of the bidder, the historical bidding record point, the credit point, the risk preference point, the family state point and the financing time point, the scores are obtained by searching a preset table to obtain the scores corresponding to the user portrait factors, the table records the scores corresponding to different user portrait factors except the credit score, as for the same user portrait factor, scores corresponding to different user portrait factors are obtained, the credit score is obtained by evaluating the basis of 8 authentication such as bank fund escrow, real name authentication, work credit, mobile phone authentication, sesame credit, property authentication and data authentication (face recognition, academic education, social security and public deposit) completed by bidders, and the credit score is obtained by weighting and summing the scores corresponding to the 8 factors;
after calculating the user integral of the user corresponding to the bidding terminal, determining the corresponding grade, wherein 10 grades are preset, each grade has a corresponding user integral range, and the determined grade number represents the investment and financing target of the corresponding bidder;
correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal;
for example, 20 bidders form a bidding circle of 1000-unit bid, the number of the live participants is 19, the monthly rate is 2.5%, the highest bidding price is 2.5% (20-1) × 1000/(2+ 2.5% > (19-1)) > 194 units, the percentage of the next bidding price to the highest bidding price is determined to be 80% by a prediction model of the percentage of the bidding price to the highest bidding price and the number of bidding periods, the bidding price is calculated to be 194% × 80% × 155.2 units, then the bidding price is corrected according to the covariance matrix, the investment and financing types of the bidding, and the investment and financing targets of the users corresponding to each bidding terminal, so as to obtain a bidding reference price corresponding to each bidding terminal, specifically, the variance of the 2 nd highest bidding price of each bidding person in the historical bidding record is obtained according to the covariance matrix, and the variance of the bidding persons corresponding to each bidding terminal is excluded from the 2 nd highest bidding price of the bidding persons corresponding to the highest bidding price of each bidding period, then averaging the rest bidding prices to obtain an average bidding price, judging according to the bidding investment and financing type and the investment and financing target of a bidder, if the investment and financing target of the bidder is not 4 grades, taking the minimum value of the bidding price and the average bidding price calculated according to a prediction model as a bidding reference price if the investment type is the investment type, taking the maximum value of the bidding price and the average bidding price calculated according to the prediction model as the bidding reference price if the investment and financing type is the financing type, and uniformly taking the minimum value of the bidding price and the average bidding price calculated according to the prediction model as the bidding reference price if the investment and financing target of the bidder is 4 grades;
s4, the server receives the bidding price which is sent by each bidding terminal in the bidding terminal set and is determined according to the corresponding bidding reference price, and sends the bidding price to the Etherhouse client; the bidding price sent by each bidding terminal in the bidding terminal set is encrypted and signed by a private key of the corresponding bidding terminal;
after each bidding terminal receives the corresponding bidding reference price, the bidding reference price can be referred and modified within a set bidding range to determine the bidding price, and then the bidding price is sent out through app within a preset time;
when the preset bidding time is up, the bidding price of each bidding terminal is sent to a bidding initiator for preliminary examination, the examination basis of the initiator is the credit score of the bidder corresponding to each bidding terminal, the credit score is obtained by evaluating the basis of 8 major authentications including bank fund escrow, real name authentication, work credit, mobile phone authentication, sesame credit, property authentication and data authentication (face identification, academic education, social security and accumulation fund) completed by the bidder, and the credit score is weighted and obtained by the score corresponding to the 8 major factors;
after the preliminary audit of the bidding initiator passes, sending the bidding initiator to an app platform for final audit, if the audit does not pass, the bidding is invalidated, if the audit passes, sending the encrypted and signed bidding data containing the identification of each bidding terminal and the corresponding bidding price to an intelligent contract on an Ethernet workshop network node which is deployed in a message calling mode to run, wherein the Ethernet workshop network node is an intelligent contract running environment in the Ethernet workshop and is packaged by a sandbox and is completely isolated, codes running on the Ethernet workshop network node cannot contact with a network, a file system or other processes, and even the intelligent contract only has limited contact with other intelligent contracts;
s5, the Etherhouse client sends the bidding price to the intelligent contract on the blockchain through the blockchain address of the intelligent contract and an application program binary interface (ABI);
s6, the Ether house client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price, and sends the bidding result to the server;
wherein, receiving the bidding result obtained by the intelligent contract according to the bidding rule and the bidding price specifically comprises:
triggering an Ethernet workshop network node to read and write corresponding intelligent contract binary codes and bidding price on a block chain, so that the Ethernet workshop network node runs the intelligent contract binary codes in a semi-icon-agile complete manner, obtaining a bidding result according to the bidding rule and the bidding price, specifically, the running environment of the intelligent contract binary codes is on a decentralized network, ensuring the disclosure, fairness and justice of a bidding method for executing a person with a high price by decentralization and using an encryption and signature algorithm, sequencing from high to low according to the bidding price by a system at a preset bidding time point, and automatically evaluating the person with the highest price as a bidder;
if more than two bidding terminals with the same bid price are available, a gold egg smashing game is carried out, the system platform uniformly sends gold egg smashing link short messages to the bidding terminals with the same bid price, a bidder clicks the link short messages to smash gold eggs, bidding is displayed in the process of smashing, and the rest bidding terminals do not bid;
under the condition that all the golden eggs are smashed, the system platform uniformly sends a bidding publishing short message and informs the bidders of paying fee;
if some bidders hit the money but some clients do not hit the money eggs, opening the bidding at the preset bidding opening time, publishing a bidding short message and informing the bidders that the money can be paid;
if some customers do not smash the golden eggs but some customers do not smash the golden eggs when the preset bidding opening time is up, the system platform randomly selects a bidder from the bidding terminals which do not smash the golden eggs, and publishes a bidding short message and informs the bidder that the bidder can start to pay at the preset bidding opening time, and the bidder proposes whether to obtain financing through credit;
receiving the bidding result;
s7, the server sends the bidding results to each bidding terminal in the bidding terminal set respectively;
if the bidding terminal needs to actively check a new bidding result, sending a bidding result request to the server, triggering the Ethenhouse client by the server, enabling the Ethenhouse client to be connected to the Ethenhouse network node, and calling a web3.js function interface of the Ethenhouse network node to inquire the bidding result;
after receiving the bidding result, each bidding terminal pays in a preset time, and after all bidders finish paying, the bidding sponsor receives the payment notification short message, logs in app and clicks to pay down the bid amount;
and (4) the bidder performs cash withdrawal after receiving the paid short message, specifically, the buyer logs in app to click to embody, selects a cash withdrawal mode, submits a cash withdrawal application, and after the cash withdrawal application is submitted, the system platform performs auditing, and transfers the bid amount after the auditing is passed.
In summary, according to the bidding method and terminal based on the block chain provided by the invention, bidders can realize bidding through the bidding terminal, the operation is convenient, no commission is required, and the bidding can be performed without arriving at the site, so that the limitation that the traditional bidding needs the same time and the same place is solved; meanwhile, the top bid is strictly controlled through a preset bidding price prediction model and an interest rate algorithm of a bank, so that the interest rate is ensured to be within the legal permission range, a bidding reference price is provided for a bidder, a reliable and reasonable reference bidding price meeting the legal requirements is provided for the bidder, and meanwhile the bidder can inquire historical bids so as to make a more reasonable bid for bidding in the next period; and the bidding is realized through a block chain intelligent contract, the bidding price of each bidding terminal is stored in the block chain, the method is safe and reliable, the bidding price and the bidding rule have non-tamper property, and the disclosure, fairness and justness of the whole bidding process are ensured.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. A competitive bidding method based on a block chain is characterized by comprising the following steps:
s1, the Ether house client receives the bidding rule sent by the server, generates a corresponding intelligent contract according to the bidding rule, pushes the intelligent contract to the block chain, and receives the block chain address of the intelligent contract and the application program binary interface ABI;
s2, the server constructs a bidding terminal set comprising a plurality of bidding terminals;
s3, the server receives bidding requests sent by the bidding terminals, respectively calculates corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sends the bidding reference prices to the corresponding bidding terminals;
s4, the server receives the bidding price which is sent by each bidding terminal in the bidding terminal set and is determined according to the corresponding bidding reference price, and sends the bidding price to the Etherhouse client;
s5, the Etherhouse client sends the bidding price to the intelligent contract on the blockchain through the blockchain address of the intelligent contract and an application program binary interface (ABI);
s6, the Ether house client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price, and sends the bidding result to the server;
s7, the server sends the bidding results to each bidding terminal in the bidding terminal set respectively;
in step S1, generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to the blockchain specifically includes:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
testing the intelligent contract binary code through the private Ethernet shop network node, and pushing the intelligent contract binary code to a block chain if the test is passed;
in step S3, according to a preset bidding prediction model, calculating a corresponding bidding reference price for each bidding terminal in the bidding terminal set respectively includes:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, carrying out deep analysis on the data, and establishing a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
and correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal.
2. The method for bidding based on block chain according to claim 1, wherein the bidding price sent by each bidding terminal in the set of bidding terminals in step S4 is encrypted and signed by the private key of the corresponding bidding terminal.
3. The method according to claim 1, wherein the step S6 of receiving a bidding result derived from the intelligent contract according to the bidding rule and the bidding price specifically comprises:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
and receiving the bidding result.
4. A block chain based bidding terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of:
s1, sending bidding rules to the Etherhouse client, so that the Etherhouse client generates corresponding intelligent contracts according to the bidding rules, pushes the intelligent contracts to a block chain, and receives the block chain address of the intelligent contracts and an application program binary interface ABI;
s2, constructing a bidding terminal set comprising a plurality of bidding terminals;
s3, receiving bidding requests sent by each bidding terminal, respectively calculating to obtain corresponding bidding reference prices for each bidding terminal in the bidding terminal set according to a preset bidding prediction model, and respectively sending the bidding reference prices to the corresponding bidding terminals;
s4, respectively receiving a bidding price determined according to the corresponding bidding reference price sent by each bidding terminal in the set of bidding terminals, sending the bidding price to the etherhouse client, so that the etherhouse client sends the bidding price to an intelligent contract on a blockchain through a blockchain address of the intelligent contract and an application binary interface ABI, and the etherhouse client receives a bidding result obtained by the intelligent contract according to the bidding rule and the bidding price;
s5, receiving bidding results sent by the Ether house client, and sending the bidding results to each bidding terminal in the bidding terminal set respectively;
generating a corresponding intelligent contract according to the bidding rule, and pushing the intelligent contract to a block chain specifically comprises:
according to the bidding rule, writing and generating a corresponding intelligent contract by using a solid language;
compiling the intelligent contract to generate a corresponding intelligent contract binary code;
starting a private Ethernet workshop network node, and sending the intelligent contract binary code to the private Ethernet workshop network node;
testing the intelligent contract binary code through the private Ethernet shop network node, and pushing the intelligent contract binary code to a block chain if the test is passed;
the step of respectively calculating and obtaining the corresponding bidding reference price for each bidding terminal in the bidding terminal set according to a preset bidding price prediction model specifically comprises the following steps:
determining market weights of the different types of financial assets according to the collected data of the different types of financial assets;
according to the market weights of the financial assets of different types and the collected data of the financial assets of different types for preset times, carrying out deep analysis on the data, and establishing a prediction model of the percentage of bidding price and the highest bidding price and the bidding period number;
determining the highest bidding price according to the monthly rate of the equal-amount staged repayment of the bank and the number of the bidding terminals;
determining bidding prices corresponding to the bidding period numbers according to the bidding period numbers, the percentage of the bidding price and the highest bidding price, a prediction model of the bidding period numbers and the highest bidding price;
acquiring historical bidding price data of each bidding terminal in the bidding terminal set from a block chain to generate a covariance matrix;
determining the bidding and financing type of the bidding according to the bidding period number;
respectively determining investment and financing targets of users corresponding to each bidding terminal according to the user images corresponding to each bidding terminal in the bidding terminal set;
and correcting the bidding price according to the covariance matrix, the bidding investment and financing type and the investment and financing target of the user corresponding to each bidding terminal, and respectively calculating to obtain the bidding reference price corresponding to each bidding terminal.
5. The bidding terminal based on block chain according to claim 4, wherein the bidding price sent by each bidding terminal in the bidding terminal set is encrypted and signed by the private key of the corresponding bidding terminal.
6. The bidding terminal according to claim 4, wherein the receiving of the bidding result obtained by the intelligent contract according to the bidding rule and the bidding price specifically comprises:
triggering an Ethernet workshop network node to read and write the corresponding intelligent contract binary code and bidding price on the block chain, so that the Ethernet workshop network node runs the intelligent contract binary code in a semi-icon-based complete mode, and obtaining a bidding result according to the bidding rule and the bidding price;
and receiving the bidding result.
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| TW201133373A (en) * | 2010-03-23 | 2011-10-01 | Zhi-Hao Zhong | Bidding system and method |
| CN103971281A (en) * | 2013-01-27 | 2014-08-06 | 上海海上桥国际贸易有限公司 | Service pricing method based on service industry auction system |
| CN107454114A (en) * | 2017-09-29 | 2017-12-08 | 深圳市轱辘车联数据技术有限公司 | A kind of auction bidding method, server and readable storage medium storing program for executing |
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| CN103971281A (en) * | 2013-01-27 | 2014-08-06 | 上海海上桥国际贸易有限公司 | Service pricing method based on service industry auction system |
| CN107454114A (en) * | 2017-09-29 | 2017-12-08 | 深圳市轱辘车联数据技术有限公司 | A kind of auction bidding method, server and readable storage medium storing program for executing |
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