CN111835929A - Blockchain-based call charge transaction method and system - Google Patents

Abstract

The present invention provides a blockchain-based call charge transaction method, comprising: a buyer signing a smart contract through a buyer node and a seller through a seller node, the smart contract includes the phone numbers and transaction amount of the buyer and the seller; Broadcast in the blockchain; the second operator node corresponding to the second operator to which the seller's account belongs will deduct the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator to which the buyer's account belongs corresponds to The first operator node of , charges the buyer's account with the call charge equal to the transaction amount according to the smart contract, wherein the first operator and the second operator are the same operator or different operators. Correspondingly, a blockchain-based call charge transaction system is also provided. Call charge transactions between accounts of different operators or the same operator can be realized.

Description

Blockchain-based call charge transaction method and system

technical field

The present invention relates to the field of communication technologies, and in particular, to a method and system for a call charge transaction based on a blockchain.

Background technique

In the existing telecommunications services, when the user needs to pay the arrears of the bill, the payer can only realize the payment service by recharging the arrears user, and cannot use his own account balance to pay the arrears user. Pay on your behalf. In addition, when a user presents or trades phone bills to other users, it cannot be realized through transactions between accounts, and the user experience is not good.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to aim at the above-mentioned deficiencies of the prior art, and to provide a method and system for a call charge transaction based on a blockchain to realize a call charge transaction between accounts.

An embodiment of the present invention provides a method for a call charge transaction based on a blockchain, including: a buyer through a buyer node and a seller through a seller node jointly sign a smart contract, where the smart contract includes the phone numbers and transaction amount of the buyer and the seller; The smart contract is broadcast in the blockchain; the second operator node corresponding to the second operator to which the seller's account belongs, deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator's node to which the buyer's account belongs is deducted from the seller's account. The first operator node corresponding to the operator charges the buyer's account with a call charge equal to the transaction amount according to the smart contract, wherein the first operator and the second operator are the same operator or different operators.

Preferably, before the buyer jointly signs the smart contract with the seller through the seller node through the buyer node, the method further includes: the seller inquires the second operator node through the seller node for the remaining call charge or credit limit of the seller's account to determine the tradable Maximum call charge amount, where the tradable maximum call charge amount is the difference between the remaining call charge and the preset second threshold, or the tradable maximum call charge amount is the difference between the credit limit and the preset second threshold.

Preferably, before the seller queries the second operator node for the remaining call charges or credit limit of the seller's account through the seller node, the method further includes: the buyer queries the first operator node for the arrears of the buyer's account through the buyer node, so as to Determine whether the call charge transaction can be performed; when the arrears duration is less than the preset first threshold, determine that the buyer's account can conduct call charge transactions; when the arrears duration is greater than or equal to the preset first threshold, determine that the buyer's account cannot conduct call charge transactions .

Preferably, the buyer and the seller jointly sign a smart contract through the seller node through the buyer node, which specifically includes: the buyer node and the seller node respectively receive the buyer part and the seller part of the smart contract template issued by the call charge transaction device node, and the smart contract template. The buyer part/seller part includes the phone number, transaction amount, and transaction time of the buyer/seller to be filled in. The buyer uploads the buyer part of the filled smart contract template to the call charge transaction device node through the buyer node, and the seller will fill in the completed through the seller node. The seller part of the smart contract template is uploaded to the call charge transaction device node, and the call charge transaction device node generates the smart contract according to the buyer part and the seller part of the filled smart contract template.

Alternatively, the buyer, through the buyer's node, and the seller, through the seller's node, jointly sign a smart contract, which specifically includes: the buyer, through the buyer's node and the seller, through the seller's node, respectively uploading an initial contract determined through negotiation to the call charge transaction device node, where the initial contract includes The phone numbers, transaction amount, and transaction time of the buyer and seller, and the call charge transaction device node generates the smart contract according to the initial contract.

Preferably, the second operator node corresponding to the second operator to which the seller's account belongs, deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator corresponding to the first operator to which the buyer's account belongs. The merchant node charges the buyer's account with a call charge equal to the transaction amount according to the smart contract, which specifically includes: the billing system of the second operator node deducts the call charge equal to the transaction amount in the seller's account according to the smart contract; The billing system of an operator node charges the buyer's account with a call charge equal to the transaction amount according to the smart contract.

Alternatively, the node of the second operator corresponding to the second operator to which the seller's account belongs, deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator corresponding to the first operator to which the buyer's account belongs. The node charges the call charge equal to the transaction amount in the buyer's account according to the smart contract, which specifically includes: the call charge transaction device node sends the phone numbers, transaction amount, and transaction time of the buyer and the seller in the smart contract to the first. The business system of the operator node and the business system of the second operator node respectively form the first business business record and the second business business record, and the business system of the second operator node reports to the second operator according to the second business business record. The billing system of the node sends a charge deduction instruction, so that the billing system of the second operator node deducts the call charge equal to the transaction amount in the seller's account, and the business system of the first operator node reports to the seller according to the first business business record. The charging system of the first operator node sends a recharging instruction, so that the charging system of the first operator node recharges the call charge equal to the transaction amount in the buyer's account.

Correspondingly, an embodiment of the present invention also provides a blockchain-based call charge transaction system, including a buyer node, a seller node, a call charge transaction device node, a first operator node, and a second operator node. The buyer node and the seller node are used to enable the buyer to sign a smart contract with the seller through the seller node through the buyer node. connected with the seller node, used to broadcast the smart contract in the blockchain; the second operator node, connected with the call charge transaction device node, is the node corresponding to the second operator to which the seller account belongs, and is used for according to the The smart contract deducts the call charge equal to the transaction amount in the seller's account, and the first operator node, which is connected to the call charge transaction device node, is the node corresponding to the first operator to which the buyer's account belongs, and is used in the smart contract according to the smart contract. A call charge equal to the transaction amount is charged into the buyer's account, wherein the first operator and the second operator are the same operator or different operators.

Preferably, the seller node includes a second query module. The second query module is configured to query the second operator node for the remaining call charge or credit limit of the seller's account to determine the maximum tradable call charge amount, where the tradable maximum call charge amount is the remaining call charge and a preset second threshold The difference, or the maximum tradable call charge limit is the difference between the credit limit and the preset second threshold.

Preferably, the buyer node includes a first query module. a first query module, configured to query the first operator node about the arrears of the buyer's account to determine whether a call charge transaction can be performed; when the arrears duration is less than a preset first threshold, determine that the buyer's account can perform a call charge transaction; When the duration of the arrears is greater than or equal to the preset first threshold, it is determined that the account of the buyer cannot perform a call charge transaction.

Preferably, the call charge transaction device node further includes a contract generation module. The contract generation module is connected to the buyer node and the seller node, and is used to deliver the buyer part and the seller part of the smart contract template to the buyer node and the seller node respectively. The buyer part/seller part of the smart contract template includes the buyer/seller's Phone number, transaction amount, transaction time, and is used to receive the buyer part of the completed smart contract template uploaded by the buyer through the buyer node, and the seller part of the completed smart contract template uploaded by the seller through the seller node, and, with to generate the smart contract according to the buyer part and the seller part of the filled smart contract template.

Alternatively, the contract generation module is connected to the buyer node and the seller node, and is configured to receive the initial contract determined through negotiation uploaded by the buyer through the buyer node and the seller through the seller node, where the initial contract includes the phone numbers of the buyer and the seller, and the transaction Amount, transaction time, and used to generate the smart contract based on the initial contract.

Preferably, the first operator node includes a first operator billing system, the second operator node includes a second operator billing system, and the first operator billing system and the second operator billing system respectively conduct phone bill transactions Device node connection. The second operator billing system of the second operator node deducts the call charge equal to the transaction amount in the seller's account according to the smart contract; the first operator billing system of the first operator node deducts the call charge in the buyer's account according to the smart contract Charge the phone bill equal to the transaction amount.

Alternatively, the first operator node includes a first operator billing system and a first operator business system, the second operator node includes a second operator billing system and a second operator business system, and the first operator bills The system and the second operator's billing system are respectively connected with the call charge transaction equipment node through their respective business systems. The call charge transaction equipment node is also used to send the phone numbers, transaction amount, and transaction time of the buyer and the seller in the smart contract to the first operator's business system and the second operator's business system at the same time, so as to form the first business system respectively. The business record and the second business business record, the second operator's business system sends a charge deduction instruction to the second operator's billing system according to the second business business record, so that the second operator's billing system deducts the same amount from the seller's account. The first operator's business system sends a recharge instruction to the first operator's billing system according to the first business business record, so that the first operator's billing system recharges the buyer's account with the transaction amount. The same amount of call charges.

In a blockchain-based call charge transaction method and system provided by the embodiments of the present invention, the buyer signs a smart contract with the seller through the seller node through the buyer node, wherein the smart contract includes the phone numbers of the buyer and the seller, the transaction amount, and The signed smart contract is broadcast in the blockchain, and the second operator node corresponding to the second operator to which the seller's account belongs will deduct the call charge equal to the transaction amount in the seller's account according to the smart contract, and the buyer's account belongs to the second operator's node. The first operator node corresponding to the first operator fills the buyer's account with a call charge equal to the transaction amount according to the smart contract, thereby realizing call charge transactions between accounts of different operators or the same operator.

Description of drawings

Fig. 1 is a flowchart of a blockchain-based call charge transaction method according to Embodiment 1 of the present invention;

Figure 2 is a structural diagram of a blockchain-based call charge transaction system according to Embodiment 3 of the present invention;

FIG. 3 is a structural diagram of another blockchain-based call charge transaction system according to Embodiment 3 of the present invention.

Detailed ways

In order for those skilled in the art to better understand the technical solutions of the present invention, a method and system for a call charge transaction based on a blockchain of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Example 1:

As shown in Figure 1, this embodiment provides a blockchain-based call charge transaction method, which is applied to a buyer and a seller, where the buyer and the seller are pre-agreed parties, and the buyer and the seller can be users of the same operator or different operators users of the business. In this embodiment, taking the buyer as a user of the first operator and the seller as a user of the second operator as an example, the blockchain-based call charge transaction method includes:

Step 101, the buyer signs a smart contract with the seller through the seller node through the buyer node, wherein the smart contract includes the phone numbers and transaction amount of the buyer and the seller.

In this embodiment, the transaction amount is the call charge amount agreed upon by the buyer and the seller. In another embodiment, the smart contract further includes identity information of the buyer and seller, and/or transaction time, wherein the identity information includes name, ID number, address, gender, and work unit information. The transaction time is the time when the buyer and seller sign the smart contract.

Specifically, there are two different ways for the buyer to jointly sign the smart contract through the buyer node and the seller through the seller node. One way is that the buyer node and the seller node respectively receive the buyer part and the seller part of the smart contract template issued by the call charge transaction device node, and the buyer part/seller part of the smart contract template Amount, transaction time; the buyer uploads the buyer part of the filled smart contract template to the call charge transaction equipment node through the buyer node, and the seller uploads the filled part of the smart contract template to the call charge transaction equipment node through the seller node; call charge transaction equipment Nodes generate smart contracts based on the buyer and seller parts of the filled smart contract template. Another way is that the buyer uploads the initial contract determined through negotiation to the call charge transaction device node through the buyer node and the seller respectively through the seller node, wherein the initial contract includes the phone number, transaction amount, transaction time, and call charge transaction of the buyer and the seller. The device node generates a smart contract based on the initial contract negotiated by both parties.

In this embodiment, the blockchain network includes a buyer node, a seller node, and a call charge transaction device node, wherein the call charge transaction device node is respectively connected to the buyer node and the seller node. In one way, the call charge transaction device node generates a smart contract according to the buyer part and the seller part of the filled smart contract template, and the method further includes: the call charge transaction device node judges the transaction amount filled in by the buyer and the transaction amount filled in by the seller, and in the When the judgment result is that the transaction amount filled in by the buyer is less than or equal to the transaction amount filled in by the seller, the transaction amount in the generated smart contract is the transaction amount filled in by the buyer; when the judgment result is that the transaction amount filled in by the buyer is greater than the transaction amount filled in by the seller , the transaction amount in the generated smart contract is the transaction amount value filled in by the seller. In another way, the transaction amount in the initial contract is a value negotiated by the buyer and the seller according to the actual needs and conditions of both parties. It should be noted that in the two methods, the smart contract generated by the call charge transaction device node must eventually include the signatures of the buyer and the seller.

Optionally, before the buyer jointly signs the smart contract with the seller through the seller node through the buyer node, the method further includes: the seller inquires the second operator node through the seller node for the remaining call charge or credit limit of the seller's account to determine the maximum tradable amount. Call credit limit, where the tradable maximum call credit limit is the difference between the remaining call charge and the preset second threshold, or the tradable maximum call credit limit is the difference between the credit limit and the preset second threshold.

In this embodiment, the blockchain network further includes a first operator node and a second operator node, wherein the call charge transaction device node is respectively connected to the first operator node and the second operator node. The seller sends, through the seller node, a request for querying the remaining call charge or credit limit of the seller's account to the call charge transaction device node, and the call charge transaction device node sends the request to the second operator node. There are two cases to determine the maximum tradable call charge amount. One is that when the seller is a prepaid user (that is, when the user has charged enough call charge users to its own account in advance), the maximum tradable call charge amount is the remaining call charge in the seller's account and The difference between the preset second thresholds. The preset second threshold value may be preset by the seller node according to the user requirements of the seller, or may be preset by the second operator node to which the seller belongs. For example, if the value of the second threshold is set to 100 yuan, the maximum call credit limit that the seller can trade is the limit obtained by subtracting 100 yuan from the remaining call cost of the seller's account. The second case is that when the seller is a postpaid user (that is, the user has overdrafted a certain credit limit), the maximum tradable call charge amount is the difference between the overdraft limit call charge (credit limit) of the seller's account and the preset second threshold. difference.

Optionally, before the seller queries the second operator node through the seller node for the remaining call charges or credit limit of the seller's account, the method further includes: the buyer queries the first operator node through the buyer node for the arrears of the buyer's account to determine Whether the call credit transaction can be performed; when the arrears duration is less than the preset first threshold, it is determined that the buyer's account can conduct call credit transactions; when the arrears duration is greater than or equal to the preset first threshold, it is determined that the buyer's account cannot conduct call credit transactions.

In this embodiment, the buyer sends a request for querying the arrears of the buyer's account to the call charge transaction device node through the buyer node, and the call charge transaction device node sends the request to the first operator node. The preset first threshold may be preset by the first operator node to which the buyer belongs according to requirements. For example, the value of the first threshold is set to 6 months. When the period of arrears on the buyer's account is greater than or equal to 6 months, that is, when the buyer's account has been suspended for more than or equal to 6 months, it is determined that the buyer's account cannot be processed. call transaction.

Step 102, broadcast the smart contract in the blockchain.

In this embodiment, after the call charge transaction device node generates the smart contract, the call charge transaction device node writes the smart contract signed by the buyer and the seller into the block, and broadcasts it in the blockchain network. Each node in the blockchain network The verification and storage of smart contracts are completed according to the consensus mechanism. Among them, the block information includes the block chain header and the block body, the block chain header includes the Merkel root, the previous block hash, and the timestamp; the block body includes the phone numbers of the buyer and seller, transaction amount, and transaction time.

Step 103, the second operator node corresponding to the second operator to which the seller's account belongs, deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator node corresponding to the first operator to which the buyer's account belongs. According to the smart contract, the call charge equal to the transaction amount is charged into the buyer's account, wherein the first operator and the second operator are the same operator or different operators.

In this embodiment, if the buyer and the seller are users of different operators, since each node in the blockchain network stores a smart contract jointly signed by the buyer and the seller, the second operator node to which the seller's account belongs is stored in the seller's account according to the smart contract. The first operator node to which the buyer's account belongs will charge the buyer's account with a call fee equal to the transaction amount according to the smart contract. It should be noted that, after the call charge transaction, the second operator and the first operator conduct regular settlement (for example, daily settlement) according to the transaction. Since the settlement between different operators can use the existing technology, this It is not repeated here. If the buyer and the seller are users of the same operator, the operator node deducts the call charge equal to the transaction amount from the seller's account according to the smart contract, and then charges the call charge equal to the transaction amount in the buyer's account. It should be noted that, in the case where the buyer and the seller are users of the same operator, settlement between operators is not involved after the call charge transaction. The above blockchain-based call charge transaction method can realize the call charge transaction between accounts of different operators or the same operator, and make the call charge transaction between accounts fast and convenient, which not only improves the service quality of telecom operators, but also improves the user's experience. consumption perception. And this method adopts blockchain technology to form a transaction record that cannot be tampered with, so as to facilitate query and confirmation after the transaction.

Specifically, the second operator node corresponding to the second operator to which the seller's account belongs deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator node corresponding to the first operator to which the buyer's account belongs. According to the smart contract, the buyer's account is charged with the amount of the call charge equal to the transaction amount, including two different ways. One way is as follows: the first operator node includes a first operator billing system, and the second operator node includes a second operator billing system. The billing systems of different operators are independent of each other, and the call charge transaction equipment nodes are respectively connected to the first operator billing system and the second operator billing system. Since each node in the blockchain network stores smart contracts, therefore, The billing system of the second operator node deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the billing system of the first operator node charges the call charge equal to the transaction amount in the buyer's account according to the smart contract, thereby Realize call charge transactions between accounts. If the buyer and the seller are users of the same operator, the billing system of the operator node will deduct and recharge accordingly. The first operator billing system and the second operator billing system in this embodiment can implement corresponding deduction or recharge operations according to the content of the smart contract broadcast in the blockchain network. Only through transformation can the transaction of call charges between accounts be realized.

Another way is: the first operator node further includes the first operator's business system, and the second operator node further includes the second operator's business system. The business systems of different operators are independent of each other, and the call charge transaction equipment nodes are respectively connected with the business system of the first operator and the business system of the second operator, the business system of the first operator is connected with the billing system of the first operator, and the business system of the second operator is connected to the billing system of the second operator. The operator's business system is connected to the second operator's billing system. The phone bill transaction equipment node sends the phone numbers, transaction amount, and transaction time of the buyer and seller in the smart contract to the business system of the first operator node and the business system of the second operator node at the same time, so as to form the first business business record respectively and the second business service record, the business system of the second operator node sends a charge deduction instruction to the billing system of the second operator node according to the second business business record, so that the billing system of the second operator node is in the seller's account. After deducting the call charge equal to the transaction amount, the business system of the first operator node sends a recharge instruction to the billing system of the first operator node according to the first business business record, so that the billing system of the first operator node is in the buyer's The account is charged with a call charge equal to the transaction amount. In this way, the call charge transaction between accounts is realized. If the buyer and the seller are users of the same operator, the business system of the operator node sends a charge deduction instruction and a recharge instruction to the billing system of the operator node according to the corresponding business service record, so that the operator node's accounting system The fee system performs deduction and recharge operations. In this embodiment, the billing system and the business system of the first operator node and the billing system and business system of the second operator node do not need to be modified, and can realize the connection between accounts of different operators or the same operator. Call bill transaction, low cost and easy to implement.

In the blockchain-based call charge transaction method provided in this embodiment, the second operator node to which the seller's account belongs, deducts an amount equal to the transaction amount in the smart contract from the seller's account according to the smart contract signed by the buyer and seller broadcasted in the blockchain Call charges, the first operator node to which the buyer's account belongs, according to the smart contract signed by the buyer and the seller broadcasted in the blockchain, will charge the buyer's account with a call charge equal to the transaction amount, so as to quickly and easily realize the call charge transaction between accounts. The demand of users to give away or pay for calls improves user perception. In addition, the use of blockchain technology to store smart contracts signed by buyers and sellers can form immutable transaction records for post-transaction query. If the call charge transaction between accounts is realized by connecting the call charge transaction device node and the billing system of the operator node, the billing system of the operator needs to be transformed. If the call charge transaction between accounts is realized by connecting the call charge transaction device node and the business system of the operator node, there is no need to modify the billing system and business system of each operator, and the cost is low and easy to implement.

Example 2:

This embodiment provides a blockchain-based call charge transaction method, which is applied when the buyer and the seller are two parties who do not know each other, and the buyer and the seller may be users of the same operator or users of different operators. In this embodiment, the buyer is a user belonging to the first operator and the seller is a user belonging to the second operator as an example, wherein the blockchain network includes a buyer node, a seller node, a call charge transaction device node, a first operator node, a third Two operator nodes, the call charge transaction device node is respectively connected with the buyer node, the seller node, the first operator node, and the second operator node, and the call charge transaction method based on the blockchain includes:

Step 201, the buyer signs a smart contract with the seller through the seller node through the buyer node, and the smart contract includes the phone numbers and transaction amount of the buyer and the seller.

Optionally, before step 201, the blockchain-based call charge transaction method further includes: the buyer inquires, through the buyer's node, the arrears of the buyer's account to the first operator node, so as to determine whether a call charge transaction can be performed; When the value is less than the preset first threshold, it is determined that the buyer's account can conduct call charge transactions; when the arrears duration is greater than or equal to the preset first threshold, it is determined that the buyer's account cannot conduct call charge transactions. When it is determined that the buyer's account can conduct a call charge transaction, the buyer sends a call charge transaction request to the call charge transaction device node through the buyer node. The call charge transaction request includes the buyer's phone number and the transaction amount.

The seller queries the second operator node for the remaining call charge or credit limit of the seller's account through the seller node to determine the maximum tradable call charge amount, where the tradable maximum call charge amount is the difference between the remaining call charge and a preset second threshold , or the maximum tradable credit limit is the difference between the credit limit and the preset second threshold. The call charge transaction device node judges the transaction amount and the maximum tradable call charge amount of the seller's account. When the judgment result is that the transaction amount is less than or equal to the maximum call charge amount that can be traded in the seller's account, the call charge transaction device node obtains a transaction that satisfies the above judgment result. A list of seller accounts for the buyer to select sellers for transactions through the buyer node, and the list of seller accounts includes the seller's phone number. The call charge transaction device node forwards the call charge transaction request to the seller selected by the buyer through the buyer node, and determines the buyer and the seller when obtaining the call charge transaction reception response sent by the corresponding seller through the seller node.

Step 202, broadcasting the smart contract in the blockchain.

Step 203, the second operator node corresponding to the second operator to which the seller's account belongs, deducts the call charge equal to the transaction amount in the seller's account according to the smart contract, and the first operator corresponding to the first operator to which the buyer's account belongs. The merchant node charges the buyer's account with a call charge equal to the transaction amount according to the smart contract, wherein the first operator and the second operator are the same operator or different operators.

Example 3:

As shown in FIG. 2 , this embodiment provides a blockchain-based call charge transaction system, including a buyer node 31 , a seller node 32 , a call charge transaction device node 33 , a first operator node 34 , and a second operator node 35 .

The buyer node 31 and the seller node 32 are used to enable the buyer to sign a smart contract through the buyer node 31 and the seller through the seller node 32, and the smart contract includes the phone numbers and transaction amount of the buyer and the seller.

The call charge transaction device node 33 is connected to the buyer node 31 and the seller node 32, and is used to broadcast the smart contract in the blockchain.

The second operator node 35, connected to the call charge transaction device node 33, is a node corresponding to the second operator to which the seller's account belongs, and is used to deduct the call charge equal to the transaction amount from the seller's account according to the smart contract. The first operator node 34, connected to the call charge transaction device node 33, is the node corresponding to the first operator to which the buyer's account belongs, and is used to charge the call charge equal to the transaction amount in the buyer's account according to the smart contract, wherein the first The operator and the second operator are the same operator or different operators.

Optionally, the seller node includes a second query module. The second query module is configured to query the second operator node for the remaining call charge or credit limit of the seller's account to determine the maximum tradable call charge amount, where the tradable maximum call charge amount is the remaining call charge and a preset second threshold The difference, or the maximum tradable call charge limit is the difference between the credit limit and the preset second threshold.

Optionally, the buyer node includes a first query module. a first query module, configured to query the first operator node about the arrears of the buyer's account to determine whether a call charge transaction can be performed; when the arrears duration is less than a preset first threshold, determine that the buyer's account can perform a call charge transaction; When the duration of the arrears is greater than or equal to the preset first threshold, it is determined that the account of the buyer cannot perform a call charge transaction.

Optionally, the call charge transaction device node further includes a contract generation module. The contract generation module is connected to the buyer node and the seller node, and is used to deliver the buyer part and the seller part of the smart contract template to the buyer node and the seller node respectively. The buyer part/seller part of the smart contract template includes the buyer/seller's Phone number, transaction amount, transaction time, and is used to receive the buyer part of the completed smart contract template uploaded by the buyer through the buyer node, and the seller part of the completed smart contract template uploaded by the seller through the seller node, and, with to generate the smart contract according to the buyer part and the seller part of the filled smart contract template.

Alternatively, the contract generation module is connected to the buyer node and the seller node, and is used to receive the negotiated initial contract uploaded by the buyer through the buyer node and the seller through the seller node respectively. The initial contract includes the phone numbers of the buyer and the seller, transaction amount, transaction time, and is used to generate the smart contract according to the initial contract.

Optionally, the first operator node includes a first operator billing system, the second operator node includes a second operator billing system, and the first operator billing system and the second operator billing system are respectively related to the telephone bill. Trading device node connection. The second operator billing system of the second operator node deducts the call charge equal to the transaction amount from the seller's account according to the smart contract; the first operator billing system of the first operator node charges the buyer's account according to the smart contract Call charges equal to the transaction amount.

Alternatively, as shown in FIG. 3 , the first operator node 34 includes a first operator billing system 342 and a first operator business system 341, and the second operator node 35 includes a second operator billing system 352 and a second operator billing system 352 The operator's business system 351 , the first operator's billing system 342 and the second operator's billing system 352 are respectively connected to the call charge transaction device node 33 through their respective business systems.

The call charge transaction device node 33 is also used to send the phone numbers, transaction amount, and transaction time of the buyer and the seller in the smart contract to the first operator's business system 341 and the second operator's business system 351 at the same time, so as to form the first The business business record and the second business business record, the second operator's business system 351 sends a charge deduction instruction to the second operator's billing system 352 according to the second business business record, so that the second operator's billing system 352 is in the seller's account. The first operator's business system 341 sends a recharge instruction to the first operator's billing system 342 according to the first business business record, so that the first operator's billing system 342 charges the buyer's account. Call charges equal to the transaction amount.

In the blockchain-based call charge transaction system provided by this embodiment, since the business systems and billing systems of different operators are independent of each other and are not directly connected, the call charge transaction equipment is used to build the business system between different operators, The connection of the billing system, based on the blockchain technology, realizes the fast and convenient call charge transaction between accounts of different operators, thereby improving the consumer perception of customers and improving the service quality of telecom operators.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, without departing from the spirit and essence of the present invention, various modifications and improvements can be made, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (10)

1. A block chain based telephone charge transaction method is characterized by comprising the following steps:

the buyer signs an intelligent contract together with the seller through the buyer node and the seller node, wherein the intelligent contract comprises the telephone numbers and the transaction amount of the buyer and the seller;

broadcasting the intelligent contracts in a blockchain;

and the first operator node corresponding to the first operator to which the buyer account belongs charges the telephone charge with the same amount as the transaction amount in the buyer account according to the intelligent contract, wherein the first operator and the second operator are the same operator or different operators.

2. The block chain based credit transaction method of claim 1, further comprising, before the buyer signs the intelligent contract with the seller through the seller node via the buyer node, the following:

the seller inquires the remaining telephone charge or the credit line of the seller account from the second operator node through the seller node to determine the maximum telephone charge line capable of trading, wherein the maximum telephone charge line capable of trading is the difference value between the remaining telephone charge and a preset second threshold value, or the maximum telephone charge line capable of trading is the difference value between the credit line and the preset second threshold value.

3. The blockchain-based credit transaction method of claim 2, further comprising, before the seller inquiring the seller's account remaining credit or remaining credit through the seller node to the second operator node:

the buyer inquires the arrearage condition of the buyer account from the first operator node through the buyer node to determine whether the telephone charge transaction can be carried out;

when the arrearage duration is smaller than a preset first threshold value, determining that the telephone charge transaction can be carried out on the account of the buyer; and when the arrearage duration is greater than or equal to a preset first threshold value, determining that the telephone charge transaction cannot be carried out on the account of the buyer.

4. The block chain based telephone charge transaction method of claim 3, wherein the buyer signs the intelligent contract with the seller through the seller node via the buyer node, and the method specifically comprises:

the buyer node and the seller node respectively receive a buyer part and a seller part of an intelligent contract template issued by the telephone charge transaction equipment node, the buyer part/seller part of the intelligent contract template comprises the telephone number of the buyer/seller to be filled, the transaction amount and the transaction time,

the buyer uploads the buyer part of the filled intelligent contract template to the telephone charge transaction equipment node through the buyer node, the seller uploads the seller part of the filled intelligent contract template to the telephone charge transaction equipment node through the seller node,

the telephone rate transaction facility node generates the intelligent contract according to the buyer part and the seller part of the filled intelligent contract template,

or, the buyer signs the intelligent contract together with the seller through the seller node through the buyer node, which specifically includes:

the buyer uploads initial contracts determined by negotiation to the telephone charge transaction equipment node through the buyer node and the seller node respectively, the initial contracts comprise the telephone numbers of the buyer and the seller, the transaction amount and the transaction time,

and the telephone charge transaction equipment node generates the intelligent contract according to the initial contract.

5. The blockchain-based telephone charge transaction method of claim 4, wherein a second operator node corresponding to a second operator to which the seller account belongs deducts a telephone charge equal to the transaction amount from the seller account according to the intelligent contract, and a first operator node corresponding to a first operator to which the buyer account belongs charges a telephone charge equal to the transaction amount from the buyer account according to the intelligent contract, comprising:

the charging system of the second operator node deducts the telephone charge equal to the transaction amount from the account of the seller according to the intelligent contract;

the charging system of the first operator node charges a telephone charge equal to the transaction amount in the account of the buyer according to the intelligent contract,

or, the second operator node corresponding to the second operator to which the seller account belongs deducts a telephone charge equal to the transaction amount from the seller account according to the intelligent contract, and the first operator node corresponding to the first operator to which the buyer account belongs charges a telephone charge equal to the transaction amount from the buyer account according to the intelligent contract, specifically including:

the telephone charge transaction equipment node simultaneously sends the telephone numbers, the transaction amount and the transaction time of the buyer and the seller in the intelligent contract to a business system of a first operator node and a business system of a second operator node so as to respectively form a first business record and a second business record, the business system of the second operator node sends a fee deduction instruction to a charging system of the second operator node according to the second business record, so that the charging system of the second operator node deducts telephone charges with the same amount as the transaction amount from an account of the seller, and the business system of the first operator node sends a recharging instruction to the charging system of the first operator node according to the first business record so that the charging system of the first operator node charges the telephone charges with the same amount as the transaction amount into the account of the buyer.

6. A telephone charge transaction system based on block chain is characterized in that the system comprises a buyer node, a seller node, a telephone charge transaction equipment node, a first operator node and a second operator node,

the buyer node and the seller node are used for enabling a buyer to sign an intelligent contract together with a seller through the seller node through the buyer node, and the intelligent contract comprises telephone numbers of the buyer and the seller and transaction amount;

the telephone charge transaction equipment node is connected with the buyer node and the seller node and is used for broadcasting the intelligent contract in the block chain;

the second operator node is connected with the telephone charge transaction equipment node, is a node corresponding to the second operator to which the seller account belongs, and is used for deducting telephone charge with the same amount as the transaction amount in the seller account according to the intelligent contract,

a first operator node connected with the telephone charge transaction equipment node, which is a node corresponding to the first operator to which the buyer account belongs, and is used for charging telephone charges with the same amount as the transaction amount in the buyer account according to the intelligent contract,

the first operator and the second operator are the same operator or different operators.

7. The blockchain-based credit transaction system of claim 6, wherein the seller node includes a second query module,

and the second inquiry module is used for inquiring the remaining telephone charge or the credit line of the seller account from the second operator node so as to determine the maximum telephone charge line capable of trading, wherein the maximum telephone charge line capable of trading is the difference value between the remaining telephone charge and a preset second threshold value, or the maximum telephone charge line capable of trading is the difference value between the credit line and the preset second threshold value.

8. The block chain based credit transaction system of claim 7, wherein the buyer node includes a first query module,

the first inquiry module is used for inquiring the arrearage condition of the buyer account from the first operator node so as to determine whether the telephone charge transaction can be carried out;

when the arrearage duration is smaller than a preset first threshold value, determining that the telephone charge transaction can be carried out on the account of the buyer; and when the arrearage duration is greater than or equal to a preset first threshold value, determining that the telephone charge transaction cannot be carried out on the account of the buyer.

9. A blockchain based credit transaction system according to claim 8, wherein the credit transaction facility node further includes a contract generating module,

a contract generating module connected with the buyer node and the seller node and used for issuing a buyer part and a seller part of the intelligent contract template to the buyer node and the seller node respectively, wherein the buyer part/seller part of the intelligent contract template comprises the telephone number, the transaction amount and the transaction time of the buyer/seller to be filled,

and is used for receiving the buyer part of the filled intelligent contract template uploaded by the buyer through the buyer node and the seller part of the filled intelligent contract template uploaded by the seller through the seller node,

and for generating the intelligent contract based on the buyer portion and the seller portion of the populated intelligent contract template,

or,

a contract generating module connected with the buyer node and the seller node and used for receiving initial contracts which are uploaded by the buyer node and the seller node respectively and are determined by negotiation, wherein the initial contracts comprise the telephone numbers of the buyer and the seller, the transaction amount and the transaction time,

and to generate the intelligent contract from the initial contract.

10. The blockchain-based credit transaction system of claim 9, wherein the first operator node includes a first operator billing system, the second operator node includes a second operator billing system, the first operator billing system and the second operator billing system are respectively connected to the credit transaction device node,

the second operator charging system of the second operator node deducts the telephone charge equal to the transaction amount from the seller account according to the intelligent contract;

a first operator charging system of the first operator node charges a telephone charge equal to the transaction amount in a buyer account according to an intelligent contract,

or the first operator node comprises a first operator charging system and a first operator business system, the second operator node comprises a second operator charging system and a second operator business system, the first operator charging system and the second operator charging system are respectively connected with the telephone charge transaction equipment node through respective business systems,

the telephone charge transaction equipment node is also used for simultaneously sending the telephone numbers, the transaction amount and the transaction time of the buyer and the seller in the intelligent contract to a first operator business system and a second operator business system so as to respectively form a first business record and a second business record, the second operator business system sends a fee deduction instruction to a second operator charging system according to the second business record so that the second operator charging system deducts telephone charges with the same amount as the transaction amount from the account of the seller, and the first operator business system sends a recharging instruction to the first operator charging system according to the first business record so that the first operator charging system charges the telephone charges with the same amount as the transaction amount into the account of the buyer.

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