CN108648066A - A kind of managing bill system and method based on block chain - Google Patents
A kind of managing bill system and method based on block chain Download PDFInfo
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Abstract
The present invention provides a kind of managing bill system and method based on block chain, system includes at least one user terminal, financial system and block catenary system；Wherein, the user terminal, for sending electronic invoice to be submitted an expense account to the financial system；The target reimbursement information whether issued in the block catenary system corresponding to the electronic invoice to be submitted an expense account inquired for receiving the electronic invoice to be submitted an expense account for the financial system；It is not issued in the block catenary system corresponding to described when submitting an expense account the target invoice information of electronic invoice when inquiring, reimbursement processing is carried out to the electronic invoice to be submitted an expense account, the target reimbursement information for corresponding to the electronic invoice to be submitted an expense account is generated, and target reimbursement information is distributed to the block catenary system.Technical solution through the invention, the reimbursement that can avoid repeating same electronic invoice are handled.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an invoice management system and method based on a block chain.
Background
With the rapid development of computer application technology, electronic invoices have replaced traditional paper invoices in a wide range of technical fields and application scenes.
At present, when a financial system reimburses an electronic invoice, it is generally required to query whether reimbursement information corresponding to the electronic invoice exists in a database, and when the reimbursement information corresponding to the electronic invoice does not exist, corresponding reimbursement processing is performed on the electronic invoice, and the reimbursement information corresponding to the electronic invoice is written into the database.
The database has extremely low tamper resistance, and when the reimbursement information stored in the database is tampered, the financial system may perform repeated reimbursement processing on the same electronic invoice.
Disclosure of Invention
The embodiment of the invention provides an invoice management system and method based on a block chain, which can avoid repeated reimbursement processing on the same electronic invoice.
In a first aspect, the present invention provides a block chain based invoice management system, including:
at least one user terminal, a financial system and a blockchain system; wherein,
the user terminal is used for sending an electronic invoice to be reimbursed to the financial system;
the financial system is used for inquiring whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system after the electronic invoice to be reimbursed is received; and when the target invoice information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system, reimbursement processing is carried out on the electronic invoice to be reimbursed, target reimbursement information corresponding to the electronic invoice to be reimbursed is generated, and the target reimbursement information is issued to the block chain system.
Preferably, the first and second electrodes are formed of a metal,
further comprising: at least one billing management terminal; wherein,
the billing management terminal is used for calculating the abstract value of the current electronic invoice and issuing the abstract value to the block chain system when the billing management terminal issues the current electronic invoice;
the financial management system comprising: the system comprises a calculation module, a query processing module and an alarm processing module; wherein,
the calculation module is used for calculating the current abstract value of the electronic invoice to be reimbursed when the electronic invoice to be reimbursed is received;
the query processing module is used for querying whether a target abstract value identical to the current abstract value is distributed in the block chain system or not, and if so, querying whether target reimbursement information corresponding to the electronic invoice to be reimbursed is distributed in the block chain system or not; otherwise, sending a first alarm signal to the alarm processing module;
and the alarm processing module is used for generating and outputting first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice when receiving the first alarm signal.
Preferably, the first and second electrodes are formed of a metal,
the query processing module is further used for outputting a second alarm signal to the alarm processing module when the query result shows that the block chain system has issued the target invoice information corresponding to the electronic invoice to be reimbursed;
and the alarm processing module is further used for generating and outputting second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement when receiving the second alarm signal.
Preferably, the first and second electrodes are formed of a metal,
the billing management terminal is used for calculating the abstract value of the current electronic invoice when the billing management terminal issues the current electronic invoice, and issuing the invoice identifier of the current electronic invoice and the abstract value to the block chain system as a billing record;
the query processing module is used for querying the block chain system according to the current invoice identifier of the electronic invoice to be reimbursed, detecting whether a target invoice drawing record carrying the current invoice identifier in the block chain system carries a target abstract value same as the current abstract value, and if so, querying whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system; and otherwise, sending a first alarm signal to the alarm processing module.
In a second aspect, an embodiment of the present invention provides a method for managing invoices by using the invoice management system described in any one of the first aspects, including:
sending an electronic invoice to be reimbursed to the financial system by using the user terminal;
utilizing the financial system to inquire whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the blockchain system after the electronic invoice to be reimbursed is received;
and when the financial system is used for inquiring that target invoice information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system, reimbursement processing is carried out on the electronic invoice to be reimbursed, target reimbursement information corresponding to the electronic invoice to be reimbursed is generated, and the target reimbursement information is issued to the block chain system.
Preferably, the first and second electrodes are formed of a metal,
before the sending, by the user terminal, an electronic invoice to be reimbursed to the financial system, the method further comprises: when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the abstract value to the block chain system;
then the process of the first step is carried out,
before the querying whether target reimbursement information corresponding to the pending reimbursement electronic invoice is issued in the blockchain system, further comprising:
calculating the current abstract value of the electronic invoice to be reimbursed by utilizing the calculation module;
inquiring whether a target abstract value identical to the current abstract value is distributed in the block chain system or not by using the inquiry processing module, if so, executing the inquiry whether target reimbursement information corresponding to the electronic invoice to be reimbursed is distributed in the block chain system or not; otherwise, sending a first alarm signal to the alarm processing module;
further comprising: and when the alarm processing module receives the first alarm signal, generating first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice, and outputting the first alarm information.
Preferably, the first and second electrodes are formed of a metal,
further comprising:
when the query processing module is used for querying that target invoice information corresponding to the electronic invoice to be reimbursed is issued in the block chain system, outputting a second alarm signal to the alarm processing module;
and generating second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement by utilizing the alarm processing module when receiving the second alarm signal, and outputting the second alarm information.
Preferably, the first and second electrodes are formed of a metal,
when the current electronic invoice is issued by using the invoicing management terminal, calculating the abstract value of the current electronic invoice and issuing the abstract value to the block chain system, wherein the method comprises the following steps: when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the invoice identifier of the current electronic invoice and the abstract value to the blockchain system as a billing record;
then, the querying, by using the query processing module, whether a target digest value that is the same as the current digest value is distributed in the blockchain system includes: and inquiring the block chain system according to the current invoice identification of the electronic invoice to be reimbursed, and detecting whether a target invoice drawing record carrying the current invoice identification in the block chain system carries a target abstract value same as the current abstract value.
The embodiment of the invention provides an invoice management system and method based on a block chain, the system comprises a user terminal, a financial system and a block chain system, when the financial system carries out reimbursement processing on an electronic invoice, the financial system can simultaneously generate target reimbursement information corresponding to the electronic invoice and issue the target reimbursement information to the block chain system, and the anti-tampering characteristic of the block chain ensures that each target reimbursement information issued to the block chain cannot be maliciously modified by an intruder, therefore, when the financial system receives the electronic invoice to be reimbursed sent by the user terminal, whether the block chain system issues the target reimbursement information corresponding to the electronic invoice to be reimbursed can be inquired, if yes, the financial system already carries out corresponding reimbursement processing on the electronic invoice to be reimbursed, otherwise, the financial system does not carry out corresponding reimbursement processing on the electronic invoice to be reimbursed, therefore, the financial system performs reimbursement processing on the electronic invoice to be reimbursed if and only if target reimbursement information corresponding to the electronic invoice to be reimbursed is not issued in the query blockchain system, thereby avoiding repetitive reimbursement processing on the same electronic invoice.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block chain-based invoice management system according to an embodiment of the present invention;
FIG. 2 is a block chain based invoice management system according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for managing invoices utilizing a blockchain based invoice management system in accordance with one embodiment of the present invention;
FIG. 4 is a flowchart of another method for managing invoices using a blockchain based invoice management system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a block chain-based invoice management system, including:
at least one user terminal 101, a finance system 102 and a blockchain system 103; wherein,
the user terminal 101 is configured to send an electronic invoice to be reimbursed to the financial system 102;
the financial system 102 is configured to, after receiving the electronic invoice to be reimbursed, query whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the blockchain system 103; when the block chain system 103 is inquired that target invoice information corresponding to the electronic invoice to be reimbursed is not issued, reimbursement processing is performed on the electronic invoice to be reimbursed, target reimbursement information corresponding to the electronic invoice to be reimbursed is generated, and the target reimbursement information is issued to the block chain system 103.
As shown in fig. 1, the system includes a user terminal, a financial system and a blockchain system, when the financial system performs reimbursement processing on an electronic invoice, the financial system can simultaneously generate target reimbursement information corresponding to the electronic invoice and issue the target reimbursement information to the blockchain system, and the tamper-proof property of the blockchain prevents each target reimbursement information issued to the blockchain from being maliciously modified by an intruder, so when the financial system receives the electronic invoice to be reimbursed sent by the user terminal, whether the target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the blockchain system can be inquired, if so, the financial system already performs corresponding reimbursement processing on the electronic invoice to be reimbursed, otherwise, the financial system does not perform corresponding reimbursement processing on the electronic invoice to be reimbursed, therefore, the financial system only when the target reimbursement information corresponding to the electronic invoice is not issued in the blockchain system and not issued The electronic invoice to be reimbursed is reimbursed, so that the repeated reimbursement processing on the same electronic invoice is avoided.
As shown in fig. 2, in an embodiment of the present invention, the block chain-based invoice management system further includes: at least one billing management terminal 201; wherein,
the invoicing management terminal 201 is configured to calculate a summary value of the current electronic invoice and issue the summary value to the block chain system 103 when the invoicing management terminal 201 invoices the current electronic invoice;
the financial management system 102, comprising: a calculation module 1021, a query processing module 1022 and an alarm processing module 1023; wherein,
the calculation module 1021 is used for calculating the current abstract value of the electronic invoice to be reimbursed when the electronic invoice to be reimbursed is received;
the query processing module 1022 is configured to query whether a target abstract value that is the same as the current abstract value is distributed in the blockchain system 103, and if so, query whether target reimbursement information corresponding to the to-be-reimbursed electronic invoice is distributed in the blockchain system 103; otherwise, send the first warning signal to the said warning processing module 1023;
and the alarm processing module 1023 is used for generating and outputting first alarm information representing that the to-be-reimbursed electronic invoice is a counterfeit invoice when the first alarm signal is received.
In the above embodiment, when issuing the current electronic invoice, the invoicing management terminal may simultaneously calculate the digest value of the issued current electronic invoice and issue the digest value to the block chain system, when receiving the electronic invoice to be reimbursed sent by the user terminal, the fiscal system may calculate the current digest value of the electronic invoice to be reimbursed, if it is found that the target digest value identical to the current digest value does not exist in the block chain system, it is determined that the electronic invoice to be reimbursed received by the fiscal system is a counterfeit invoice, at this time, the subsequent process is not performed to perform corresponding reimbursement processing on the counterfeit electronic invoice to be reimbursed, but first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice is generated and output to a manager, so that the manager performs corresponding processing on the counterfeit invoice.
In an embodiment of the present invention, the query processing module 1022 is further configured to output a second alarm signal to the alarm processing module 1023 when it is queried that the target invoice information corresponding to the pending electronic invoice has been issued in the blockchain system 103;
the alarm processing module 1023 is further configured to generate and output second alarm information representing that the to-be-reimbursed electronic invoice has repeated reimbursement when receiving the second alarm signal.
In the above embodiment, when it is found that the target invoice information corresponding to the electronic invoice to be reimbursed has been issued in the blockchain system, it is determined that the financial system has performed corresponding reimbursement processing on the electronic invoice, at this time, the subsequent business process is not continued to avoid performing corresponding reimbursement processing on the electronic invoice to be reimbursed repeatedly, but a second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement is generated by the alarm processing module, and is output to remind a manager that malicious reimbursement by using the electronic invoice that has performed reimbursement processing may exist for the user.
In an embodiment of the present invention, the invoicing management terminal is configured to calculate a summary value of the current electronic invoice when the invoicing management terminal issues the current electronic invoice, and issue an invoice identifier of the current electronic invoice and the summary value as an invoicing record to the blockchain system;
the query processing module is used for querying the block chain system according to the current invoice identifier of the electronic invoice to be reimbursed, detecting whether a target invoice drawing record carrying the current invoice identifier in the block chain system carries a target abstract value same as the current abstract value, and if so, querying whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system; and otherwise, sending a first alarm signal to the alarm processing module.
In the above embodiment, the invoice issuing terminal issues the abstract value and the invoice identifier of the current electronic invoice issued by the invoice issuing terminal as an invoice issuing record to the block chain system, because the abstract value is usually a hash value with relatively more data bits, and the invoice identifier (invoice number) is usually a data chain with a specified data structure, the financial system can quickly query the target invoice issuing record carrying the current invoice identifier according to the current invoice identifier of the electronic invoice to be reimbursed with the specified data structure, and then detect whether the abstract value carried in the target invoice issuing record is the same as the target abstract value of the current abstract value, so as to more quickly query the authenticity of the electronic invoice to be reimbursed.
It should be understood that some optionally disclosed billing information, such as billing amount, billing date and the like of the current electronic invoice optionally disclosed, can also be carried in the target billing record issued to the blockchain system.
As shown in fig. 3, an embodiment of the present invention provides a method for managing invoices by using the block chain based invoice management system described in any one of the embodiments of the present invention, including:
step 301, sending an electronic invoice to be reimbursed to the financial system by using the user terminal;
step 302, the financial system is utilized to inquire whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system after the electronic invoice to be reimbursed is received;
and 303, when the financial system is used for inquiring that the target invoice information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system, reimbursing the electronic invoice to be reimbursed, generating target reimbursement information corresponding to the electronic invoice to be reimbursed, and issuing the target reimbursement information to the block chain system.
In an embodiment of the present invention, before the sending, by the user terminal, the pending reimbursement electronic invoice to the financial system, the method further includes:
when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the abstract value to the block chain system;
then the process of the first step is carried out,
before the querying whether target reimbursement information corresponding to the pending reimbursement electronic invoice is issued in the blockchain system, further comprising:
calculating the current abstract value of the electronic invoice to be reimbursed by utilizing the calculation module;
inquiring whether a target abstract value identical to the current abstract value is distributed in the block chain system or not by using the inquiry processing module, if so, executing the inquiry whether target reimbursement information corresponding to the electronic invoice to be reimbursed is distributed in the block chain system or not; otherwise, sending a first alarm signal to the alarm processing module;
further comprising: and when the alarm processing module receives the first alarm signal, generating first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice, and outputting the first alarm information.
In one embodiment of the present invention, the method further comprises:
when the query processing module is used for querying that target invoice information corresponding to the electronic invoice to be reimbursed is issued in the block chain system, outputting a second alarm signal to the alarm processing module;
and generating second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement by utilizing the alarm processing module when receiving the second alarm signal, and outputting the second alarm information.
In an embodiment of the present invention, when issuing a current electronic invoice using the invoicing management terminal, calculating a digest value of the current electronic invoice, and issuing the digest value to the blockchain system includes: when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the invoice identifier of the current electronic invoice and the abstract value to the blockchain system as a billing record;
then, the querying, by using the query processing module, whether a target digest value that is the same as the current digest value is distributed in the blockchain system includes: and inquiring the block chain system according to the current invoice identification of the electronic invoice to be reimbursed, and detecting whether the target invoice value is carried in the target invoice drawing record carrying the current invoice identification in the block chain system.
In order to more clearly illustrate the technical solutions and advantages of the present invention, an embodiment of the present invention provides another method for managing invoices by using a blockchain-based management system, as shown in fig. 4, which specifically includes the following steps:
step 401, the billing management terminal issues a current electronic invoice, and calculates a summary value of the current electronic invoice.
Step 402, the billing management terminal issues the abstract value of the current electronic invoice and the invoice identification to the blockchain management system as a billing record, and sends the issued current electronic invoice to the user terminal.
And step 403, the user terminal sends the received current electronic invoice to the financial system as an electronic invoice to be reimbursed.
In step 404, the accounting system calculates the current digest value of the pending electronic invoice.
Step 405, the financial system queries the blockchain system according to the current invoice identifier of the electronic invoice to be reimbursed to determine the target billing record carrying the current invoice identifier.
Step 406, the financial system detects whether the target billing record carries a target abstract value which is the same as the current abstract value, if so, step 407 is executed; otherwise, step 409 is performed.
Step 407, the financial system queries whether target reimbursement information corresponding to the to-be-reimbursed electronic invoice is issued in the blockchain system, if yes, step 410 is executed; otherwise, go to step 408;
and 408, the financial system carries out reimbursement processing on the electronic invoice to be reimbursed, generates target reimbursement information corresponding to the electronic invoice to be reimbursed, and issues the generated target reimbursement information to the blockchain system.
And 409, generating and outputting first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice by the financial system.
And step 410, the financial system generates and outputs second alarm information for representing repeated reimbursement of the electronic invoice to be reimbursed.
Through the steps of the embodiment of the invention, the authenticity of the electronic invoice to be reimbursed can be detected by utilizing the anti-tampering characteristic of the block chain system, and the reiteration reimbursement processing of the electronic invoice to be reimbursed is avoided.
In summary, the embodiments of the present invention have at least the following advantages:
1. in an embodiment of the present invention, an invoice management system based on a blockchain is composed of a user terminal, a financial system and a blockchain system, when the financial system performs reimbursement processing on an electronic invoice, the financial system can simultaneously generate target reimbursement information corresponding to the electronic invoice and issue the target reimbursement information to the blockchain system, and the tamper-proof property of the blockchain prevents each target reimbursement information issued to the blockchain from being maliciously modified by an intruder, so that when the financial system receives an electronic invoice to be reimbursed sent by the user terminal, the system can inquire whether the target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the blockchain system, if so, the financial system already performs corresponding reimbursement processing on the electronic invoice to be reimbursed, otherwise, the financial system does not perform corresponding reimbursement processing on the electronic invoice to be reimbursed, and therefore, the financial system performs reimbursement processing on the electronic invoice to be reimbursed if and only if target reimbursement information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system after being inquired, so that repeated reimbursement processing on the same electronic invoice is avoided.
2. In an embodiment of the invention, when issuing a current electronic invoice, the invoicing management terminal can simultaneously calculate an abstract value of the issued current electronic invoice and issue the abstract value to the block chain system, when receiving the electronic invoice to be reimbursed sent by the user terminal, the financial system can calculate the current abstract value of the electronic invoice to be reimbursed, if the block chain system is inquired that a target abstract value identical to the current abstract value does not exist, the electronic invoice to be reimbursed received by the financial system is a forged invoice, at this time, a subsequent process is not performed to perform corresponding reimbursement processing on the forged electronic invoice to be reimbursed, but first alarm information representing that the electronic invoice to be reimbursed is a forged invoice is generated and output to be provided to a manager so that the manager performs corresponding processing on the forged invoice.
3. In an embodiment of the present invention, when it is found that target invoice information corresponding to an electronic invoice to be reimbursed has been issued in the blockchain system, it is determined that the financial system has performed corresponding reimbursement processing on the electronic invoice, and at this time, a subsequent business process is not performed any more to avoid performing corresponding reimbursement processing on the electronic invoice to be reimbursed repeatedly, but a second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement is generated by the alarm processing module and is output to remind a manager that malicious reimbursement by using the electronic invoice that has performed reimbursement processing may exist for the user.
4. In an embodiment of the invention, the invoice issuing terminal issues the abstract value and the invoice identification of the current electronic invoice issued by the invoice issuing terminal as an invoice issuing record to the block chain system, because the abstract value is usually a hash value with relatively more data bits, and the invoice identification (invoice number) is usually a data chain with a specified data structure, the financial system can quickly inquire a target invoice issuing record carrying the current invoice issuing identification according to the current invoice identification of the electronic invoice to be issued with the specified data structure, and then detect whether the abstract value carried in the target invoice issuing record is the same as the target abstract value of the current abstract value, so that the authenticity of the electronic invoice to be issued can be quickly inquired.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A blockchain-based invoice management system, comprising:
at least one user terminal, a financial system and a blockchain system; wherein,
the user terminal is used for sending an electronic invoice to be reimbursed to the financial system;
the financial system is used for inquiring whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system after the electronic invoice to be reimbursed is received; and when the target invoice information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system, reimbursement processing is carried out on the electronic invoice to be reimbursed, target reimbursement information corresponding to the electronic invoice to be reimbursed is generated, and the target reimbursement information is issued to the block chain system.
2. The system of claim 1,
further comprising: at least one billing management terminal; wherein,
the billing management terminal is used for calculating the abstract value of the current electronic invoice and issuing the abstract value to the block chain system when the billing management terminal issues the current electronic invoice;
the financial management system comprising: the system comprises a calculation module, a query processing module and an alarm processing module; wherein,
the calculation module is used for calculating the current abstract value of the electronic invoice to be reimbursed when the electronic invoice to be reimbursed is received;
the query processing module is used for querying whether a target abstract value identical to the current abstract value is distributed in the block chain system or not, and if so, querying whether target reimbursement information corresponding to the electronic invoice to be reimbursed is distributed in the block chain system or not; otherwise, sending a first alarm signal to the alarm processing module;
and the alarm processing module is used for generating and outputting first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice when receiving the first alarm signal.
3. The system of claim 2,
the query processing module is further used for outputting a second alarm signal to the alarm processing module when the query result shows that the block chain system has issued the target invoice information corresponding to the electronic invoice to be reimbursed;
and the alarm processing module is further used for generating and outputting second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement when receiving the second alarm signal.
4. The system of claim 2,
the billing management terminal is used for calculating the abstract value of the current electronic invoice when the billing management terminal issues the current electronic invoice, and issuing the invoice identifier of the current electronic invoice and the abstract value to the block chain system as a billing record;
the query processing module is used for querying the block chain system according to the current invoice identifier of the electronic invoice to be reimbursed, detecting whether a target invoice drawing record carrying the current invoice identifier in the block chain system carries a target abstract value same as the current abstract value, and if so, querying whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the block chain system; and otherwise, sending a first alarm signal to the alarm processing module.
5. A method for managing invoices using the blockchain based invoice management system of any one of claims 1 to 4, comprising:
sending an electronic invoice to be reimbursed to the financial system by using the user terminal;
utilizing the financial system to inquire whether target reimbursement information corresponding to the electronic invoice to be reimbursed is issued in the blockchain system after the electronic invoice to be reimbursed is received;
and when the financial system is used for inquiring that target invoice information corresponding to the electronic invoice to be reimbursed is not issued in the block chain system, reimbursement processing is carried out on the electronic invoice to be reimbursed, target reimbursement information corresponding to the electronic invoice to be reimbursed is generated, and the target reimbursement information is issued to the block chain system.
6. The method of claim 5,
before the sending, by the user terminal, an electronic invoice to be reimbursed to the financial system, the method further comprises: when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the abstract value to the block chain system;
before the querying whether target reimbursement information corresponding to the pending reimbursement electronic invoice is issued in the blockchain system, the method further comprises:
calculating the current abstract value of the electronic invoice to be reimbursed by utilizing the calculation module;
inquiring whether a target abstract value identical to the current abstract value is distributed in the block chain system or not by using the inquiry processing module, if so, executing the inquiry whether target reimbursement information corresponding to the electronic invoice to be reimbursed is distributed in the block chain system or not; otherwise, sending a first alarm signal to the alarm processing module;
further comprising: and when the alarm processing module receives the first alarm signal, generating first alarm information representing that the electronic invoice to be reimbursed is a counterfeit invoice, and outputting the first alarm information.
7. The method of claim 6,
further comprising:
when the query processing module is used for querying that target invoice information corresponding to the electronic invoice to be reimbursed is issued in the block chain system, outputting a second alarm signal to the alarm processing module;
and generating second alarm information representing that the electronic invoice to be reimbursed has repeated reimbursement by utilizing the alarm processing module when receiving the second alarm signal, and outputting the second alarm information.
8. The method of claim 6,
when the current electronic invoice is issued by using the invoicing management terminal, calculating the abstract value of the current electronic invoice and issuing the abstract value to the block chain system, wherein the method comprises the following steps: when the billing management terminal is used for issuing the current electronic invoice, calculating the abstract value of the current electronic invoice, and issuing the invoice identifier of the current electronic invoice and the abstract value to the blockchain system as a billing record;
then, the querying, by using the query processing module, whether a target digest value that is the same as the current digest value is distributed in the blockchain system includes: and inquiring the block chain system according to the current invoice identification of the electronic invoice to be reimbursed, and detecting whether a target invoice drawing record carrying the current invoice identification in the block chain system carries a target abstract value same as the current abstract value.
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