CN115996149B

CN115996149B - Electronic reimbursement certificate transmission method and device

Info

Publication number: CN115996149B
Application number: CN202310044426.6A
Authority: CN
Inventors: 居锴; 罗宁; 李源; 冷鹏; 胡明伟; 李�杰; 邓高明
Original assignee: Beijing Sifang Qidian Technology Co ltd
Current assignee: Beijing Sifang Qidian Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2024-02-20
Anticipated expiration: 2043-01-30
Also published as: CN115996149A

Abstract

The embodiment of the application relates to a method and a device for transmitting an electronic reimbursement certificate, which are characterized in that firstly, an internet server encrypts electronic reimbursement certificate data corresponding to a target electronic reimbursement certificate by utilizing a preset encryption algorithm to generate two-dimensional code image data; then, identifying the two-dimensional code image data by a terminal positioned in an intranet to obtain credential encryption data, and decrypting the credential encryption data to obtain electronic reimbursement credential decryption data; and the terminal in the intranet decrypts the data according to the electronic reimbursement certificate, and regenerates the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate. Through the embodiment of the application, the electronic reimbursement credential data can be transmitted from the external network to the internal network, the problem of cross-network transmission is solved, and the security of data transmission can be ensured due to the encrypted transmission of the electronic reimbursement credential data.

Description

Electronic reimbursement certificate transmission method and device

Technical Field

The application relates to the technical field of computers, in particular to a method and a device for transmitting electronic reimbursement certificates.

Background

With the continuous popularization of electronic invoices, more and more units use electronic reimbursement vouchers to reimburse and check in accounts. However, electronic invoices are usually issued through the internet, and in order to ensure the security of data, some units of financial systems are deployed in an intranet, and the intranet is isolated from the internet. Therefore, how to efficiently interface different networks without changing the security level and operation mode of the existing network, and support secure and seamless data interaction between networks has become an important problem to be solved.

For the transmission of electronic reimbursement vouchers from an external network, such as the internet, to an internal network, the current common solutions mainly consist in: 1. by adopting a U disk intermediate machine or optical disk ferry between networks, the storage medium is used in a crossed mode, potential safety hazards exist, information leakage is easy to cause, and the disk engraving efficiency is low. 2. A network gate or a light gate is deployed between networks, wherein the network gate is a unidirectional technology based on electrical isolation, and does not meet the physical isolation attribute of the network; the optical gate can ensure physical isolation of transmission by utilizing unidirectional light, and has high efficiency, strong transmission capacity and higher cost.

Disclosure of Invention

In view of this, one of the technical problems to be solved in the embodiments of the present application is to provide a method and an apparatus for transmitting electronic reimbursement certificates, which are used for overcoming the problems of low transmission efficiency or high cost of electronic reimbursement certificates in the prior art.

The first aspect of the embodiment of the application discloses a method for transmitting electronic reimbursement certificates, which comprises the following steps:

identifying the two-dimensional code image data to obtain credential encryption data; the two-dimensional code image data is generated by encrypting the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by an internet server through a preset encryption algorithm;

Decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data;

and regenerating the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher according to the electronic reimbursement voucher decryption data.

A second aspect of the embodiments of the present application discloses an electronic reimbursement credential transmission device, including:

the identification module is used for identifying the two-dimensional code image data to obtain credential encryption data; the two-dimensional code image data is generated by encrypting the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by an internet server through a preset encryption algorithm;

the decryption module is used for decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data;

and the certificate generation module is used for regenerating the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate according to the electronic reimbursement certificate decryption data.

Compared with the prior art, the method has the advantages that firstly, the Internet server encrypts the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by using a preset encryption algorithm to generate two-dimensional code image data; then, identifying the two-dimensional code image data by a terminal positioned in an intranet to obtain credential encryption data, and decrypting the credential encryption data to obtain electronic reimbursement credential decryption data; and the terminal in the intranet decrypts the data according to the electronic reimbursement certificate, and regenerates the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate. Through the embodiment of the application, the electronic reimbursement credential data can be transmitted from the external network to the internal network, the problem of cross-network transmission is solved, and the security of data transmission can be ensured due to the encrypted transmission of the electronic reimbursement credential data.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of an electronic reimbursement credential transmission method disclosed in an embodiment of the present application;

FIG. 2 is a flow chart of an electronic reimbursement credential transmission method disclosed in a second embodiment of the present application;

FIG. 3 is a flow chart of an electronic reimbursement credential transmission method disclosed in embodiment III of the present application;

FIG. 4 is a flow chart of an electronic reimbursement credential transmission method disclosed in the fourth embodiment of the present application;

fig. 5 is a schematic block diagram of an electronic reimbursement credential transmission device in accordance with a fifth embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that the terms "first," "second," "third," and "fourth," etc. in the description and claims of the present application are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

Example 1

As shown in fig. 1, fig. 1 is a schematic flowchart of a method for transmitting electronic reimbursement certificates according to an embodiment of the present application, including:

step S101, identifying the two-dimensional code image data to obtain credential encryption data.

In this embodiment, in order to realize transmission of an electronic reimbursement certificate from the internet to the intranet, the implementation subject of this embodiment is a terminal located in the intranet, and the specific terminal type is not limited. For example, the terminal located in the intranet can be a desktop computer, a notebook computer or a mobile phone, and the two-dimensional code image data can be scanned and identified through a camera or a two-dimensional code scanning gun.

In this embodiment, the target electronic reimbursement certificate is an electronic reimbursement certificate that needs to be transmitted from the internet server (external network) to the intranet terminal, and the electronic reimbursement certificate is recorded by using corresponding electronic reimbursement certificate data. The specific kind and format of the electronic reimbursement credential data are not limited. For example, the electronic reimbursement certificate data may be electronic invoice data in OFD format, electronic invoice data in PDF format, train ticket scanning data in PDF format, and the like.

In this embodiment, the electronic reimbursement voucher data includes content sub-data and layout sub-data, wherein the content sub-data is used for representing the content of the electronic reimbursement voucher, and the layout sub-data is used for representing the layout structure of the electronic reimbursement voucher. For example, for an electronic invoice, the format sub-data may be used to represent the form format of the electronic invoice, and the format and position of standardized words such as "machine number", "invoice code", "invoice number", "billing date", "check code", "purchaser name", "purchaser tax payer identifier", "goods or tax administration, service name", "unit price", "amount", etc., that is, the format sub-data corresponding to the electronic invoice of this type is the same; the content sub-data may be used to represent specific information corresponding to "machine number", "invoice code", "invoice number", "billing date", "check code", "purchaser name", "purchaser tax payer identification number", "goods or tax administration, service name", "unit price", "amount" identified on the electronic invoice, where the information of different electronic invoices may be different, i.e. the content sub-data corresponding to different electronic invoices may be different.

In this embodiment, the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher may be content sub-data and format sub-data, or may be content sub-data only, which is not limited herein, and may be reasonably selected according to practical application requirements.

In this embodiment, the two-dimensional code image data is generated by encrypting the electronic reimbursement credential data corresponding to the target electronic reimbursement credential by using a preset encryption algorithm through the internet server. Specifically, the internet server encrypts the electronic reimbursement credential data by using a preset encryption algorithm, and then generates credential encrypted data; and then generating two-dimensional code image data according to the credential encryption data, so that any intelligent terminal capable of identifying the two-dimensional code image data can acquire the credential encryption data after scanning the two-dimensional code image data. The encryption algorithm adopted is not limited, and can be reasonably selected according to actual application requirements. For example, any symmetric or asymmetric encryption algorithm may be employed.

Optionally, to improve the security of data transmission, before step S101, the method may further include: and generating a pair of asymmetric public keys and private keys by using a preset encryption algorithm, and sending the public keys to an Internet server so that the Internet server can encrypt electronic reimbursement credential data corresponding to the target electronic reimbursement credential by using the public keys.

Step S102, decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data.

In this embodiment, since the credential encrypted data is encrypted by using a preset encryption algorithm, the intelligent terminal located in the intranet can decrypt the credential encrypted data according to the decryption algorithm corresponding to the credential encrypted data, thereby obtaining the reimbursed electronic credential decrypted data.

Step S103, according to the electronic reimbursement certificate decryption data, regenerating the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate.

In this embodiment, after obtaining the electronic reimbursement document decryption data, the terminal located in the intranet may directly or indirectly obtain the electronic reimbursement document data corresponding to the target electronic reimbursement document according to the electronic reimbursement document decryption data, so as to transmit the electronic reimbursement document data corresponding to the target electronic reimbursement document from the external network to the intranet.

As can be seen from the above embodiments of the present application, in the embodiments of the present application, firstly, an internet server encrypts electronic reimbursement credential data corresponding to a target electronic reimbursement credential by using a preset encryption algorithm, and then generates two-dimensional code image data; then, identifying the two-dimensional code image data by a terminal positioned in an intranet to obtain credential encryption data, and decrypting the credential encryption data to obtain electronic reimbursement credential decryption data; and the terminal in the intranet decrypts the data according to the electronic reimbursement certificate, and regenerates the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate. Through the embodiment of the application, the electronic reimbursement credential data can be transmitted from the external network to the internal network, the problem of cross-network transmission is solved, and the security of data transmission can be ensured due to the encrypted transmission of the electronic reimbursement credential data.

Example two

As shown in fig. 2, fig. 2 is a schematic flowchart of an electronic reimbursement credential transmission method disclosed in a second embodiment of the present application, including:

step S201, two-dimensional code image data are identified, and credential encrypted data are obtained. The two-dimensional code image data are generated by encrypting the content sub-data corresponding to the target electronic reimbursement certificate by using a preset encryption algorithm through an internet server.

In this embodiment, considering that the format structure of the electronic reimbursement certificate is limited in practical application, and one type of electronic reimbursement certificate generally has a unified format standard, in order to reduce the data transmission amount, it may be preferable to transmit only the content sub-data corresponding to the target electronic reimbursement certificate when transmitting the data from the external network to the internal network, that is, before step S201, the internet server encrypts the content sub-data corresponding to the target electronic reimbursement certificate by using a preset encryption algorithm and generates the two-dimensional code image data.

Alternatively, to facilitate extraction of the content sub-data, it may be preferable that the content sub-data is structured data.

Further, considering that the formats of the electronic reimbursement credential data at present are generally two types, namely PDF and OFD, for the OFD format, the structured data can be directly extracted; for the PDF format, a corresponding process is also required to obtain structured data. Therefore, in order to be compatible with different types of electronic reimbursement document data, when the format of the electronic reimbursement document data corresponding to the target electronic reimbursement document is PDF format, before step S201, the internet server may further process the electronic reimbursement document data corresponding to the target electronic reimbursement document by using a preset data extraction algorithm, so as to obtain content sub-data corresponding to the target electronic reimbursement document.

Step S202, decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data.

In this embodiment, the method for decrypting the credential encrypted data is substantially the same as or similar to step S102 in the first embodiment, and will not be described here again.

Alternatively, considering that the content identified on one electronic reimbursement certificate may be relatively more, and the data volume that can be recorded by one two-dimensional code is limited, when the data volume that needs to be transmitted from the external network to the internal network is larger, the problem can be solved by generating a plurality of two-dimensional codes.

Specifically, the two-dimensional code image data corresponding to the target electronic reimbursement certificate comprises one or more first image sub-data, each first image sub-data is used for representing one two-dimensional code, and the two-dimensional code represented by each first image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate, at least part of encrypted content sub-data and serial number information corresponding to each first image sub-data.

Each electronic reimbursement certificate is provided with unique identification information for carrying out unique identification on the electronic reimbursement certificate, so that different electronic reimbursement certificate data cannot be confused in the data transmission and processing processes.

When the data size of the content sub-data corresponding to the target electronic reimbursement voucher is larger, after the content sub-data is encrypted, the encrypted content sub-data can be split into a plurality of parts, and the first image sub-data is generated together with the unique identification information corresponding to the target electronic reimbursement voucher.

Correspondingly, step S202 includes: and identifying all the first image sub-data, and obtaining the certificate encryption data according to the serial number information corresponding to each first image sub-data and the unique identification information corresponding to the target electronic reimbursement certificate.

In addition, after the internet server encrypts the content sub-data corresponding to the target electronic reimbursement certificate and generates a plurality of first image sub-data, in order to ensure the integrity of the data obtained by the intranet terminal and the electronic reimbursement certificate data corresponding to the target electronic reimbursement certificate can be obtained by subsequent accurate decryption, when the first image sub-data is generated, serial number information corresponding to each first image sub-data is recorded in the two-dimension code represented by each first image sub-data, wherein the serial number information is determined according to the position of the content sub-data recorded in the two-dimension code in the complete content sub-data.

For example, when the internet server encrypts the content sub-data corresponding to the target electronic reimbursement voucher with the unique identification information of "1234", the encrypted content sub-data is obtained as "010111110000"; the encrypted content sub-data may be sequentially split into three parts of "0101", "1111" and "0000", and three first image sub-data are generated, where the first image sub-data is at least used to record the unique identification information "1234", the encrypted partial content sub-data "0101" and the serial number "1", the second first image sub-data is at least used to record the unique identification information "1234", the encrypted partial content sub-data "1111" and the serial number "2", and the third first image sub-data is at least used to record the unique identification information "1234", the encrypted partial content sub-data "0000" and the serial number "3".

Further, considering that the electronic reimbursement certificates generally have unique identifiers, in order to conveniently obtain the unique identifier information corresponding to the target electronic reimbursement certificate, the unique identifier information corresponding to the target electronic reimbursement certificate can be determined according to the content sub-data corresponding to the target electronic reimbursement certificate. The specific determination method is not limited, and can be reasonably selected according to actual application requirements.

For example, considering that the electronic reimbursement certificates generally have unique number identifications, in order to conveniently obtain the unique identification information corresponding to the target electronic reimbursement certificate, the unique identification information corresponding to the target electronic reimbursement certificate is determined according to the electronic reimbursement certificate number information corresponding to the target electronic reimbursement certificate.

For another example, to ensure reliability of data transmission, the internet server and the intranet terminal may have a private key and a public key of a private key pair, respectively, and the internet server may generate a signature value, such as a hash value, for the content sub-data corresponding to the target electronic reimbursement certificate by using the private key, and then generate one or more first image sub-data by using the hash value as the unique identification information corresponding to the target electronic reimbursement certificate. Therefore, after the intranet terminal obtains the certificate encrypted data, the hash value can be checked by the public key, and the subsequent decryption operation can be executed only after the verification is passed.

Further, in order to ensure the integrity of data transmission, a two-dimensional code for recording the required transmission data amount can be separately generated. Specifically, the two-dimensional code image data corresponding to the target electronic reimbursement certificate comprises second image sub-data, the second image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by the second image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate and the quantity information of the first image sub-data.

Further, the second image sub-data is at least used for recording unique identification information, electronic reimbursement voucher number information, purchaser information, seller information, verification information, billing operation information and quantity information of the first image sub-data corresponding to the target electronic reimbursement voucher; the first image sub-data is at least used for recording partial project content information corresponding to the target electronic reimbursement certificate.

Step S203, according to the electronic reimbursement voucher decryption data, obtaining the content sub-data corresponding to the target electronic reimbursement voucher.

Step S204, according to the content sub-data corresponding to the target electronic reimbursement voucher, the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher is regenerated by utilizing a preset electronic reimbursement voucher construction algorithm.

In this embodiment, since only the content sub-data corresponding to the target electronic reimbursement voucher is transmitted, in order to obtain the complete electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher, the content sub-data corresponding to the target electronic reimbursement voucher needs to be processed by using a preset electronic reimbursement voucher construction algorithm to regenerate the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher.

As can be seen from the above embodiments of the present application, in the embodiments of the present application, only the content sub-data corresponding to the target electronic reimbursement certificate is encrypted and two-dimensional code image data is generated, and the layout sub-data corresponding to the target electronic reimbursement certificate is not encrypted and two-dimensional code image data is generated, so that the data transmission amount can be reduced.

Example III

As shown in fig. 3, fig. 3 is a schematic flowchart of an electronic reimbursement credential transmission method disclosed in a third embodiment of the present application, including:

step S301, analyzing the target mail data received by the mailbox of the target user, and determining whether the target mail data is used for extracting the electronic reimbursement credential data.

In this embodiment, the target user is a user who needs to perform electronic reimbursement credential management through an internet server, and the execution subject of this embodiment may be preferably the internet server. The internet server may be provided with a dedicated receiving mailbox for each user, or each user may set other receiving mailboxes by himself, so that the internet server may acquire mail data of each user from the receiving mailboxes.

Optionally, in order to better protect the personal privacy of the user and reduce the data processing amount of other types of mails, it may be preferable that the internet server sets up a dedicated receiving mailbox for each user, rather than the user hosting the private mailbox to the internet of things server.

In this embodiment, the target mail data is all or part of mail data in a mailbox of the target user, that is, is used for recording one or more mails, and the scope of the target mail data is not limited in this embodiment, and may be reasonably selected according to actual application requirements. For example, when the internet server acquires mail data in the mailbox of the target user for the first time, the target mail data may be all mail data in the mailbox of the target user; when the internet server does not acquire the mail data in the mailbox of the target user for the first time, the target mail data may be mail data received by the mailbox of the target user by the internet server between the current acquisition operation and the last acquisition operation time.

In this embodiment, considering that there may be mails such as work mails and advertisement mails in the receiving mailbox of the target user, these mails cannot be used for extracting the electronic reimbursement voucher data, so after the target mail data is obtained, it needs to be parsed to determine whether the target mail data is used for extracting the electronic reimbursement voucher data. The specific method for analyzing the target mail data is not limited, and can be reasonably selected according to actual application requirements. For example, the analysis rule of the mail data may be determined in advance by analyzing the transmission manner and the transmission content of the electronic reimbursement voucher data by the issuing end of the plurality of electronic reimbursement vouchers, so that in step S301, whether the target mail data is used for extracting the electronic reimbursement voucher data may be determined by using the analysis rule.

In this embodiment, the electronic reimbursement credential data corresponding to the electronic reimbursement credential may be content sub-data and format sub-data, or may be content sub-data only, which is not limited herein, and may be reasonably selected according to practical application requirements.

Step S302, when the target mail data is determined to be used for extracting the electronic reimbursement credential data, the corresponding electronic reimbursement credential data is acquired according to the target mail data.

In this embodiment, when it is determined that all or part of the target mail data is available for extracting the electronic reimbursement credential data, the corresponding electronic reimbursement credential data may be obtained according to the part of the target mail data that is available for extracting the electronic reimbursement credential data, that is, according to the data corresponding to the mail that may obtain the electronic reimbursement credential data. The method comprises the steps that a plurality of issuing terminals are arranged on a mail service platform, and the issuing terminals are connected with the issuing terminals, wherein the issuing terminals are connected with the issuing terminals, and the issuing terminals are connected with the issuing terminals.

For example, the part of the issuing end can directly send the electronic reimbursement certificate data as a mail attachment to a receiving mailbox of the target user, and for the sending mode, an extraction rule can be set as downloading the mail attachment; the download link of the electronic reimbursement voucher data which is sent by the partial issuing end is connected to the receiving mailbox of the target user, and aiming at the sending mode, an extraction rule can be set to directly download the electronic reimbursement voucher data from the download link; the display link of the electronic reimbursement credential data sent by the partially opened end is connected to the receiving mailbox of the target user, and aiming at the sending mode, the extraction rule can be set to enter the interface corresponding to the display link, and the electronic reimbursement credential data can be downloaded or intercepted from the interface.

In this embodiment, when it is determined that all or part of the target mail data cannot be used to extract the electronic reimbursement document data, it is indicated that the mail corresponding to the data may be other types of mail, and the data may not be processed any more.

Alternatively, step S301 may include sub-step S301a and sub-step S301b, and step S302 may include sub-step S302a, improving the efficiency of judging whether the target mail data is used for extracting the electronic reimbursement credential data, and reducing the storage and processing of the abnormal data. Specifically:

in sub-step S301a, it is determined whether the target mail data includes credential extraction information according to a preset credential extraction rule.

Wherein, a credential extraction rule may be preset before the substep S301a, in which credential extraction information for determining whether the mail is available for extracting electronic reimbursement credential data and a credential extraction algorithm corresponding to each type of credential extraction information may be set. The specific content represented by the credential extraction information is not limited, and can be reasonably set according to actual application requirements.

For example, the voucher extraction information can be preset to represent keywords such as "electronic invoice", "electronic ticket", "reimbursement voucher", and if the mail recorded by the target mail data includes at least one of "electronic invoice", "electronic ticket", "reimbursement voucher", it can be determined that the target mail data includes the voucher extraction information, that is, it can be determined that the target mail data can be used to extract the electronic reimbursement voucher data.

Sub-step S301b, if yes, determining a credential extraction algorithm corresponding to the credential extraction information according to the credential extraction information and the credential extraction rule.

When it is determined that the target mail data includes at least one type of credential extraction information, a credential extraction algorithm corresponding to all credential extraction information may be further determined, so that electronic reimbursement credential data may be obtained from the mail attachment or through a network link by using the credential extraction algorithm corresponding to the credential extraction information.

In the substep S302a, the electronic reimbursement credential data corresponding to the target mail data is downloaded by using a credential extraction algorithm corresponding to the credential extraction information.

Further, in order to improve the data processing efficiency, invalid voucher information for judging that the target mail data cannot be used for extracting the electronic reimbursement voucher data may also be set in the voucher extraction rule. Specifically, step S201 may include: and judging whether the target mail data comprises the credential extraction information or the invalid credential information according to the credential extraction rule. Correspondingly, the embodiment may further include: when it is determined that invalid credential information is included in the target mail data, the processing of the target mail data is terminated.

For example, the invalid credential information may be preset to be used to represent keywords such as "commodity discount", "work report", "business trip application", and if the mail recorded in the target mail data includes at least one of "commodity discount", "work report", "business trip application", it may be determined that the invalid credential information is included in the target mail data, that is, it may be determined that the target mail data is not available for extracting the electronic reimbursement credential data.

Further, considering that with the continuous progress of technology, the issuing end of the electronic reimbursement voucher may adjust the extraction mode of the electronic reimbursement voucher data, so that in order to better adapt to the change of the extraction mode of different electronic reimbursement voucher data, the voucher extraction rule can be updated. Specifically, the present embodiment may further include the following steps A1-A3:

and step A1, when the fact that the target mail data does not comprise the credential extraction information and the invalid credential information is determined according to the credential extraction rule, the target mail data is identified as abnormal data and stored.

And step A2, classifying all the stored abnormal data by using a preset machine learning algorithm.

And step A3, updating the credential extraction rule when the plurality of abnormal data are divided into one category.

If the credential extraction rule needs to be updated based on the abnormal data, the efficiency is low, and whether the credential extraction rule belongs to high-frequency abnormality or low-frequency abnormality is difficult to judge, so that all the abnormal data can be classified automatically through a preset machine learning algorithm, when a plurality of abnormal data are classified into one class, the abnormal data with high frequency can be indicated to appear, the abnormal data can be distinguished independently, if the abnormal data classified into one class are found after research, the credential extraction rule set in the credential extraction rule and the invalid credential information can be adjusted, the credential extraction rule, namely the credential extraction information and the corresponding credential extraction algorithm can be updated, and/or the invalid credential information can be updated accordingly.

Step S303, generating user associated data and storing electronic reimbursement credential data corresponding to the user associated data and the target mail data.

In this embodiment, the user association data is at least used to identify an association relationship between the target user and the electronic reimbursement credential data corresponding to the target mail data. After the internet server stores the electronic reimbursement credential data corresponding to the user association data and the target mail data, the electronic reimbursement credential data associated with the target user can be searched from all the electronic reimbursement credential data stored in the internet server based on the user association data, so that the target user can conveniently search and manage the personal electronic reimbursement credential data, and other processes such as generation of a subsequent reimbursement application form, approval of the reimbursement application form, financial account making and the like can be conveniently realized.

For example, when the target user is a business trip person, the server side may establish an association relationship between the target user and the electronic reimbursement credential data when the server side obtains the electronic reimbursement credential data for recording a food-class reimbursement credential through the mailbox of the target user. When the target user needs to generate a reimbursement application form for the business trip, the electronic reimbursement credential data for recording the food-class reimbursement credential can be searched from all the electronic reimbursement credential data stored in the internet server through the user associated data, and reimbursement application form data is generated.

And step S304, the intranet terminal identifies the two-dimensional code image data to obtain credential encryption data.

In this embodiment, the step S304 is substantially the same as or similar to the step S101 in the first embodiment, and will not be described herein.

And step S305, the intranet terminal decrypts the certificate encrypted data to obtain electronic reimbursement certificate decrypted data.

In this embodiment, the step S305 is substantially the same as or similar to the step S102 in the first embodiment, and will not be described herein.

And step S306, the intranet terminal regenerates the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher according to the electronic reimbursement voucher decryption data.

In this embodiment, step S306 is substantially the same as or similar to step S103 in the first embodiment, and will not be described herein.

Example IV

As shown in fig. 4, fig. 4 is a schematic flowchart of an electronic reimbursement credential transmission method disclosed in a fourth embodiment of the present application, including:

step S401, two-dimensional code image data are identified, and credential encrypted data are obtained.

In this embodiment, the step S401 is substantially the same as or similar to the step S101 in the first embodiment, and will not be described herein.

Step S402, decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data.

In this embodiment, the step S402 is substantially the same as or similar to the step S102 in the first embodiment, and will not be described herein.

Step S403, according to the electronic reimbursement evidence decryption data, regenerating the electronic reimbursement evidence data corresponding to the target electronic reimbursement evidence.

In this embodiment, step S403 is substantially the same as or similar to step S103 in the first embodiment, and will not be described herein.

Step S404, receiving business trip application data.

In this embodiment, the business trip application data is used to record at least a business trip person, a business trip start point, a business trip destination, and a business trip end point of the target business trip. The business trip personnel or the sponsor assisting in processing business trip administrative matters can input business trip related information in the electronic system before or after business trip of the business trip personnel so as to generate business trip application data.

In this embodiment, the business trip application data includes first application sub-information, second application sub-information, third application sub-information and fourth application sub-information, where the first application sub-information is used for recording a business trip person of a target business trip, the second application sub-information is used for recording a business trip start point, the third application sub-information is used for recording a business trip destination, and the fourth application sub-information is used for recording a business trip end point.

Step S405, screening all stored electronic reimbursement credential data according to the business trip application data to obtain traffic credential data corresponding to the target business trip.

In this embodiment, the electronic reimbursement document data includes at least traffic document data, where the traffic document data is used to record a consumption amount, a trip start point, and a trip end point identified on at least one traffic reimbursement document. Other content identified by the traffic voucher data is not limited, and can be reasonably selected according to actual application requirements. For example, in addition to the amount of consumption, the start of journey, and the end of journey, the traffic voucher data can be used to record journey times and journey personnel identified on the traffic reimbursement voucher.

To facilitate understanding of the solution of the present embodiment, a train ticket is further illustrated. For a train ticket, the fare amount marked on the train ticket is the consumption amount, the marked start station is the journey start point, the marked end station is the journey end point, the marked riding date is the journey time, and the marked rider is the journey personnel.

In this embodiment, the internet server stores the electronic reimbursement certificate data in advance, and generates index data corresponding to the electronic reimbursement certificate data, where the index data is at least used to record an association relationship between each electronic reimbursement certificate and the user, a type of each electronic reimbursement certificate, and a consumption amount identified on each electronic reimbursement certificate. When the electronic reimbursement vouchers are traffic reimbursement vouchers, the index data is also used for recording the travel starting point and the travel ending point identified on each traffic reimbursement voucher. For the present embodiment, the user corresponds to a business trip person, that is, an association relationship between the business trip person and the electronic reimbursement credential data is pre-established at the internet server.

In this embodiment, the method for establishing the index data is not limited, and may be reasonably selected according to the actual application requirements. For example, the association of the traffic reimbursement credential with the user may be established by the trip person identified on the traffic reimbursement credential; or the user can reserve a train ticket, an airplane ticket or a taxi through a designated channel, and establish an association relationship between the reimbursement certificate and the user based on data generated in a reservation process.

Optionally, in order to obtain the association relationship between the traffic reimbursement credential and the user more accurately, step S404 may further include: and screening the electronic reimbursement voucher data according to the business trip application data and the business trip preset data to obtain the traffic voucher data corresponding to the target business trip. The travel preset data are used for recording the association relation between the target travel and at least one traffic reimbursement certificate.

Further, in order to obtain the association relation between the food sink reimbursement certificates and the user more accurately, the travel reservation data is also used for recording the association relation between the target travel and at least one food sink reimbursement certificate.

In this embodiment, the target business trip is a trip in which a reimbursement application form needs to be generated and reimbursement approval is performed. Because the index data corresponding to the electronic reimbursement voucher data is generated in advance, after the business trip application data is obtained, the electronic reimbursement voucher data stored in the server side can be screened according to a business trip person, a business trip start point, a business trip destination and a business trip end point of a target business trip recorded in the business trip application data, so that the traffic voucher data corresponding to the target business trip is obtained.

Optionally, step S405 may include sub-step S405a and sub-step S405b, wherein:

and step S405a, screening the electronic reimbursement voucher data according to the first application sub-information to obtain electronic reimbursement voucher data corresponding to the business person.

The index data can be used for recording the association relation between each electronic reimbursement voucher and the user, so that after the first application sub-information is obtained, the electronic reimbursement voucher data can be screened by utilizing the user identification of the business trip person to obtain the electronic reimbursement voucher data corresponding to the business trip person.

And step S405b, screening the electronic reimbursement voucher data corresponding to the business trip according to the second application sub-information, the third application sub-information and the fourth application sub-information to obtain the traffic voucher data corresponding to the target business trip.

In this embodiment, the index data is further used to record the type of each electronic reimbursement certificate, the consumption amount identified on each electronic reimbursement certificate, and the trip start point and the trip end point identified on each traffic reimbursement certificate, so after obtaining the electronic reimbursement certificate data corresponding to the business trip person, the traffic certificate data corresponding to the target business trip can be further obtained by screening.

Compared with the method for screening the electronic reimbursement voucher data by utilizing the first application sub-information, the second application sub-information, the third application sub-information and the fourth application sub-information, the method has the advantages that the electronic reimbursement voucher data corresponding to a business trip person is screened and obtained by utilizing the first application sub-information, and the traffic voucher data corresponding to a target business trip is screened and obtained by utilizing the second application sub-information, the third application sub-information and the fourth application sub-information, so that the processing pressure of parallel processing of the data can be reduced.

Optionally, considering that in practical application, the prestored electronic reimbursement certificate data may not be complete, that is, all reimbursement certificates of the target business trip may not be recorded and stored, in order to more comprehensively obtain the traffic certificate data corresponding to the target business trip, whether the traffic reimbursement certificates are collected completely or not may be judged according to the business trip application data and the traffic certificate data corresponding to the target business trip. In particular, sub-step S405B may also include sub-steps B1-B5, as follows:

And a sub-step B1, wherein the first journey closed-loop data is obtained according to the second application sub-information, the third application sub-information and the fourth application sub-information corresponding to the target journey.

In general, a trip route may form a complete route, so that the second application sub-information, the third application sub-information and the fourth application sub-information corresponding to the target trip route may be used to obtain the first route closed-loop data for recording a trip route.

For example, if the start of the trip, the destination of the trip, and the end of the trip are beijing, shanghai, and beijing, respectively, the first line Cheng Bihuan of data is for the recorded trip route to be "beijing-shanghai-beijing".

And B2, obtaining second journey closed-loop data according to the traffic evidence data corresponding to the target journey.

The traffic voucher data is used for recording the travel starting point and the travel ending point which are identified on at least one traffic reimbursement voucher, so that first travel closed-loop data for recording one or more travel routes can be obtained according to the traffic voucher data corresponding to the target business trip.

For example, if the traffic voucher data records a total of three traffic reimbursement vouchers with the identified travel start and travel end points, the first traffic reimbursement voucher with the identified travel start and travel end points being Beijing and Shanghai, the second traffic reimbursement voucher with the identified travel start and travel end points being Nanjing and Tianjin, and the third traffic reimbursement voucher with the identified travel start and travel end points being Tianjin and Beijing, two travel routes "Beijing-Shanghai" and "Nanjing-Tianjin-Beijing" may be formed after all traffic reimbursement vouchers with the identified travel start and travel end points being concatenated, the second travel closed loop data for recording travel routes being "Beijing-Shanghai" and "Nanjing-Tianjin-Beijing".

And a sub-step B3, judging whether the traffic reimbursement evidence of the target business trip is completely collected according to the first line Cheng Bihuan data and the second trip closed-loop data.

And B4, if so, generating first reimbursement application form data according to the traffic evidence data corresponding to the target business trip.

When the second travel closed-loop data is used for recording a travel route, and the travel starting point and the travel ending point of the travel route recorded by the first line Cheng Bihuan data and the second travel closed-loop data are the same, the traffic reimbursement evidence of the target business trip is considered to be completely collected, so that the first reimbursement application form data can be generated according to the traffic evidence data corresponding to the target business trip.

And B5, if not, prompting that manual confirmation is needed, and generating first reimbursement application form data according to the received complete confirmation instruction.

When the second trip closed-loop data is used for recording a plurality of trip routes, or the trip starting point and the trip ending point of the trip routes recorded by the first line Cheng Bihuan data and the second trip closed-loop data are different, the traffic reimbursement evidence of the target trip is considered to be not completely collected. And prompting to manually confirm or supplement the traffic evidence data, and generating first reimbursement application form data according to the received complete confirmation instruction.

Optionally, considering that in practical application, the prestored electronic reimbursement certificate data may not be complete, that is, all reimbursement certificates of the target business trip may not be recorded and stored, in order to more comprehensively obtain traffic certificate data corresponding to the target business trip, whether the traffic reimbursement certificates are collected completely or not may be judged according to the traffic certificate data corresponding to the target business trip. In particular, sub-step S405b may also include sub-steps C1-C4 as follows:

and C1, acquiring primary screening data of the journey certificate according to the second application sub-information, the third application sub-information and the fourth application sub-information.

The journey credential prescreening data is traffic credential data associated with at least one of a journey start point, a journey destination and a journey end point of a target journey in electronic reimbursement credential data corresponding to a journey.

And C2, judging whether the journey starting point and the journey ending point marked by all traffic reimbursement vouchers recorded by the journey voucher primary screening data can form a location-related closed loop.

The related closed loop of the place means that after the travel starting point and the travel end point marked by all traffic reimbursement certificates are connected in series, a complete travel route can be formed, and the starting point and the end point of the route are consistent with the travel starting point and the travel end point of the target travel.

For example, assuming that the starting point of the target business trip is Beijing, the business trip destination is Shanghai, the ending point of the business trip is Beijing, the business trip voucher primary screening data totally records three traffic reimbursement vouchers, the starting point and the ending point of the business trip marked on the first traffic reimbursement voucher are Beijing and Shanghai respectively, the starting point and the ending point of the business trip marked on the second traffic reimbursement voucher are Shanghai and Tianjin respectively, the starting point and the ending point of the business trip marked on the third traffic reimbursement voucher are Tianjin and Beijing respectively, and after the starting points and the ending points of the business trips marked on all the traffic reimbursement vouchers are connected in series, the formed business trip route is 'Beijing-Shanghai-Tianjin-Beijing' which coincides with the business trip starting point and the business trip ending point of the target business trip, so that a closed loop of association of places can be formed by determining all the traffic reimbursement vouchers marked on the primary screening data.

For another example, assuming that the starting point of the target business trip is Beijing, the business trip destination is Shanghai, the ending point of the business trip is Beijing, three traffic reimbursement certificates are recorded in total in the business trip certificate primary screening data, the starting point and the ending point of the business trip identified on the first traffic reimbursement certificate are Beijing and Shanghai respectively, the starting point and the ending point of the business trip identified on the second traffic reimbursement certificate are Shanghai and Nanjing respectively, the starting point and the ending point of the business trip identified on the third traffic reimbursement certificate are Nanjing and Tianjin respectively, and after the starting points and the ending points of the business trips identified on all the traffic reimbursement certificates are connected in series, the formed business trip route is 'Beijing-Shanghai-Tianjin' which is inconsistent with the business trip ending point of the target business trip, so that a closed loop is not formed between the starting point and the business trip ending point identified on the business trip primary screening data can be determined.

For another example, assuming that the starting point of the target business trip is Beijing, the destination of the business trip is Shanghai, the end point of the business trip is Beijing, three traffic reimbursement certificates are recorded in total in the business trip primary screening data, the starting point and the end point of the business trip marked on the first traffic reimbursement certificate are Beijing and Shanghai respectively, the starting point and the end point of the business trip marked on the second traffic reimbursement certificate are Nanjing and Tianjin respectively, and the starting point and the end point of the business trip marked on the third traffic reimbursement certificate are Tianjin and Beijing respectively, after the starting point and the end point of the business trip marked on all the traffic reimbursement certificates are connected in series, two business trip routes of Beijing-Shanghai and Nanjing-Tianjin-Beijing are formed, and a complete business trip route is not formed, so that the starting point and the end point of the business trip marked on the business trip primary screening data can be determined.

And C3, if so, determining the journey certificate primary screening data as the traffic certificate data corresponding to the target business trip.

When the travel starting point and the travel ending point, which are marked by all the traffic reimbursement certificates and recorded by the travel certificate primary screening data, are determined to form a relevant closed loop of the place, the traffic reimbursement certificates in the target business trip are indicated to be likely to be complete, so that the travel certificate primary screening data can be determined as the traffic certificate data corresponding to the target business trip.

And C4, if not, acquiring journey credential supplementary data according to journey credential primary screening data, and determining the journey credential primary screening data and the journey credential supplementary data as traffic credential data corresponding to a target business trip.

When it is determined that the trip start point and the trip end point identified by all traffic reimbursement vouchers recorded by the trip voucher primary screening data cannot form a relevant closed loop of a place, it is indicated that the traffic reimbursement vouchers in the target business trip are likely to be incomplete, and the traffic reimbursement vouchers need to be supplemented, namely, the trip voucher supplementary data need to be obtained.

The journey credential supplementary data is traffic credential data associated with journey starting points or journey ending points identified by all traffic reimbursement credentials recorded by journey credential prescreening data in electronic reimbursement credential data corresponding to a business person. The collection mode of the journey certificate supplementary data is not limited, and reasonable setting can be carried out according to actual application requirements. For example, the sponsor may be prompted to supplement and upload corresponding traffic credential data, or the electronic reimbursement credential data may be rescreened using a preset algorithm.

Further, considering that the same business trip person is unlikely to be simultaneously present in two different trips in the actual application process, in order to improve the accuracy of the traffic credential data collection corresponding to the target business trip, when the traffic credential data is further used to record the trip start time point identified on at least one traffic reimbursement credential, the substep C4 may further include:

and judging whether an overlapped journey exists or not according to the journey starting time point, the journey starting point and the journey ending point marked by all traffic reimbursement vouchers recorded by the journey voucher primary screening data and the journey voucher supplemental data. Wherein, overlapping journey refers to journey with conflict in time, and if the situation is not expected, the same business trip person cannot obtain two different traffic reimbursement certificates at the same time.

If yes, prompting that manual confirmation is needed, and determining the traffic credential data corresponding to the target business trip according to the received trip confirmation instruction.

If not, determining the journey credential prescreening data and journey credential supplementary data as traffic credential data corresponding to the target business trip.

Optionally, in order to more comprehensively obtain the traffic credential data corresponding to the target business trip, the electronic reimbursement credential data may be further screened according to a time range of the target business trip. Specifically, the business trip application data further includes fifth application sub-information for recording a time range of the target business trip; the traffic voucher data is further for recording a trip start time point identified on at least one traffic reimbursement voucher.

Correspondingly, the substep S405b comprises: and screening the electronic reimbursement voucher data corresponding to the business trip according to the second application sub-information, the third application sub-information, the fourth application sub-information and the fifth application sub-information to obtain the traffic voucher data corresponding to the target business trip.

Step S406, first reimbursement application form data is generated according to traffic credential data corresponding to the target business trip.

In this embodiment, the first reimbursement application form data is at least used for recording the business trip person of the target business trip, and the consumption amount, the trip start point and the trip end point corresponding to all traffic reimbursement certificates to be reimbursed. In addition to these information, other information recorded by the first reimbursement application form data is not limited in kind and can be reasonably selected according to actual application requirements. For example, for some units, other information such as the time of business trip, the amount of subsidy, etc. needs to be identified on the reimbursement application before reimbursement approval is performed, and therefore the first reimbursement application data can also be used to identify these information.

In this embodiment, the consumption amount, the trip start point and the trip end point identified on the traffic reimbursement voucher are recorded on the traffic reimbursement voucher data, and the business trip person, the business trip start point, the business trip destination and the business trip end point of the target business trip are recorded in the business trip application data, so after the traffic voucher data corresponding to the target business trip is obtained, the first reimbursement application form data can be generated according to the traffic voucher data corresponding to the target business trip.

Therefore, after the business trip person, the business trip start point, the business trip destination and the business trip end point of the target business trip are determined, the first reimbursement application form data can be automatically generated, so that subsequent reimbursement approval and financial account making can be performed on the target business trip, and the business trip reimbursement efficiency is improved.

Optionally, considering that in addition to the traffic reimbursement credential, the sink reimbursement credential may be obtained during the business trip, the substep S405b may further include:

and D1, screening the electronic reimbursement voucher data corresponding to the business trip according to the traffic voucher data corresponding to the target business trip to obtain the food destination voucher data corresponding to the target business trip.

Wherein the sink voucher data is used for recording the amount of consumption identified on the at least one sink type reimbursement voucher, as well as the time of consumption and/or the place of consumption.

Correspondingly, step S406 may further include a substep D2: and generating first reimbursement application form data according to the traffic credential data and the food destination credential data corresponding to the target business trip.

Further, in order to improve the accuracy and the integrity of the collection of the food sink reimbursement vouchers, the food sink vouchers data corresponding to the target business trip can be determined together according to business trip application data and the traffic vouchers data corresponding to the target business trip. Specifically, sub-step D2 may further comprise:

And screening the electronic reimbursement voucher data corresponding to the business trip according to the third application sub-information, the fifth application sub-information and the traffic voucher data corresponding to the target business trip to obtain the food destination voucher data corresponding to the target business trip.

Further, in order to perform compliance verification on whether the food-class reimbursement vouchers belong to the reimbursement vouchers of the target business trip, the food-class reimbursement vouchers data are also used for recording food-class time and/or food-class places of at least one food-class reimbursement voucher locking mark; correspondingly, sub-step D2 may further comprise: judging whether the destination credential data corresponding to the target business trip is compliant according to the business trip application data and/or the traffic credential data corresponding to the target business trip; if so, generating first reimbursement application form data according to traffic evidence data and food destination evidence data corresponding to the target business trip; if not, prompting that manual confirmation is needed, and generating first reimbursement application form data according to the received compliance confirmation instruction.

Further, considering that in practical application, the business trip standards enjoyed by business trip persons of different job classes are different, in order to simplify the subsequent approval content of the reimbursement bill, compliance verification can be performed in the process of generating reimbursement bill data. Specifically, the traffic credential data is further used to record the identified vehicle seat on the at least one traffic reimbursement credential: the business trip application data further includes sixth sub-information for recording the business trip person position level. Correspondingly, sub-step D2 may further comprise:

And judging whether the total consumption amount exceeds the standard according to the sixth sub-information, the traffic evidence data and the food destination evidence data corresponding to the target business trip.

If not, generating first reimbursement application form data directly according to the traffic evidence data and the food destination evidence data corresponding to the target business trip.

If yes, prompting that manual confirmation is needed, and generating first reimbursement application form data according to the received budget confirmation instruction.

Further, considering that in practical application, a business trip person may have a corresponding patch, after determining the time range of the target business trip, the amount of the patch may be obtained by calculation according to the time range of the target business trip. Specifically, the reimbursement application form data is also used for recording the subsidy amount corresponding to the target business trip.

Optionally, considering that the electronic reimbursement certificate has replicability, if a traffic reimbursement certificate is repeatedly checked out multiple times, the financial compliance risk is brought, so in order to avoid that the traffic reimbursement certificate is repeatedly checked out multiple times, corresponding verification can be performed on the electronic reimbursement certificate data for generating the first reimbursement application form data. Specifically, step S406 may include:

And obtaining reimburseable credential data corresponding to the target business trip according to the traffic credential data corresponding to the target business trip. And generating first reimbursement application form data according to reimburseable credential data corresponding to the target business trip.

Wherein the reimburseable document data is used for recording the consumption amount, the travel starting point and the travel ending point which are identified on at least one traffic reimbursement document which is not reimbursed.

Optionally, in order to prevent the approval related data from being tampered when stored on the internet server side and ensure the security of data storage and transmission, after step S406, steps S407-S410 may be further included, specifically:

step S407, the first public key is utilized to verify the first signature information in the first reimbursement application form data sent by the first user side.

The first user terminal may be an intelligent terminal used by a reimbursement manager or an intelligent terminal used by an approver, which is not limited herein. However, in order to facilitate understanding of the technical solution of the present embodiment, the first user terminal may be considered as an intelligent terminal used by the reimbursement sponsor.

The first reimbursement application form data may include reimbursement information in addition to the first signature information. Because different units may have different requirements on the information required by reimbursement, the specific content and the generation mode included in the reimbursement information are not limited, and the reimbursement information can be reasonably selected according to the actual application requirements. However, in general, reimbursement information is used at least for recording reimbursement persons, approvers, reimbursement amounts, and reimbursement issues.

The first signature information is generated after the first user side signs the reimbursement information by using the first private key, and in order to prevent the reimbursement information from being tampered in the transmission and storage processes, the first user side can generate after the first private key signs the reimbursement information.

At least two key pairs may be generated in advance, wherein the first public key and the first private key are a private key pair and the second public key and the second private key are a private key pair. The first public key and the second public key are both stored in the server, the first private key is stored in the first user, and the second private key is stored in the second user. The specific type, generation mode and electronic signature mode of the key pair are not limited, and can be reasonably selected according to actual application requirements.

Because the first public key and the first private key are a private key pair, after receiving the first reimbursement application form data, the server side can verify the first signature information in the first public key by using the first public key to determine whether the first reimbursement application form data are legal or not.

Further, considering that financial accounting is performed by using the electronic reimbursement certificate corresponding to the reimbursement information after the reimbursement approval is completed, in order to avoid that the related information of the electronic reimbursement certificate corresponding to the reimbursement information is tampered in the approval or storage stage, the electronic reimbursement certificate can be signed. Specifically, the reimbursement information is further used for recording an electronic reimbursement certificate, and correspondingly, the first reimbursement application form data further comprises certificate identification information and certificate message digest information. The certificate identification information is used for recording the unique identification of the electronic reimbursement certificate, and the certificate message digest information is generated by carrying out hash calculation on the unique identification identified on the electronic reimbursement certificate and the consumption amount.

Further, in order to prevent the private key from being copied randomly, it may be preferable that the key pairs are both generated by the user side and the public key is sent to the server side, that is, the first user side generates the first public key and the first private key and sends the first public key to the server side for storage; the second user side generates a second public key and a second private key, and sends the second public key to the server side for storage.

Further, in order to avoid that other people impersonate the actual user of the first user terminal, the step S407 may further include: after the personal biological characteristics of the first user pass verification, the first user side can sign the reimbursement information by using the first private key and generate first signature information. The first user is a user of the set first user terminal.

And step S408, when the verification of the first signature information is passed, the first reimbursement application data is sent to the second user side, so that the second user side can audit the reimbursement information and generate first approved information, and the second private key is utilized to sign the first approved information and generate second signature information.

When the server side verifies the first signature information, the first reimbursement application form data are indicated to be legal, so that the first reimbursement application form data can be sent to the second user side. The second user end and the server end can realize network communication through a local area network or the Internet, and the second user end can be an intelligent terminal used by an approver. After the second user receives the first reimbursement application form data, the reimbursement information in the first reimbursement application form data can be checked and audited, and first audit information is generated.

The server side can prestore the corresponding relation between each user identifier and each user identifier, so that the server side can determine the corresponding second user identifier according to the approver identifier recorded in the reimbursement information after receiving the first reimbursement list application data.

In order to prevent the content audited by the second user side from being tampered, the second user side can also sign the first audit information by using the second private key and generate second signature information, then generate second reimbursement application form data at least according to the second signature information and the first audit information, and send the second reimbursement application form data to the server side. The specific information included in the second reimbursement application form data is not limited in kind, and can be reasonably selected according to actual application requirements. For example, to reduce the amount of data transmission, the second reimbursement application form data may include only the second signature information and the first trial batch information; in order to ensure the integrity and tamper resistance of the data, the second reimbursement application form data can also comprise first reimbursement application form data besides the second signature information and the first trial batch information.

When the first signature information is not verified, the first reimbursement application form data is indicated to be illegal, so that the server side can be free from further processing.

In order to record the whole electronic approval process, when the server side verifies the first signature information, the first reimbursement application form data can be stored.

Further, to facilitate extraction and presentation of the data, it may be preferable that both the reimbursement information and the first trial information be structured data. The specific format of the structured data is not limited, and can be reasonably selected according to actual application requirements. For example, in view of the versatility of the data, it may be preferable that the format data is XML format data.

Further, in order to avoid that other people impersonate the actual user of the second user terminal to audit the reimbursement information by using the second user terminal, it may be preferable that the second user terminal signs the first approval information by using the second private key and generates the second signature information after the second user terminal performs the personal biological feature verification on the second user terminal. The second user is a user of the set second user terminal.

Further, in order to obtain a better tamper-proof effect, it may be preferable that the second signature information is generated by signing the first trial batch information, the reimbursement information and the first signature information by the second user side using the second private key.

Step S409, receiving second reimbursement application form data sent by the second user terminal.

Step S410, the second signature information is verified by using the second public key, and when the second signature information is verified, the target reimbursement bill data is obtained according to the second reimbursement bill data.

The second public key is utilized to verify the second signature information, whether the second reimbursement application form data are legal or not can be determined, the subsequent processing steps are not limited, and reasonable selection can be performed according to actual application requirements. For example, when the second public key is used to verify that the second signature information fails, it indicates that the second reimbursement application form data is illegal, and the server side may not need to perform subsequent other processing, or may send the second reimbursement application form data to other user sides for approval processing, or may send a corresponding prompt to the first user side. When the second public key is used for verifying the second signature information, the second reimbursement application form data can be stored, or the first reimbursement application form data and/or the second reimbursement application form data can be sent to other user terminals to continue approval processing, and corresponding prompts can be sent to the first user terminal.

Further, when there are multiple approvers, i.e. at least three clients, the embodiment may further include steps S411-S413 after step S410, specifically:

In step S411, when the second signature information passes the verification, the second reimbursement request data is sent to the third user terminal, so that the third user terminal can audit the reimbursement information and the first audit information and generate second audit information, and signs the second audit information by using the third private key and generates third signature information.

When the server verifies the second signature information, the second reimbursement application form data are indicated to be legal, so that the second reimbursement application form data can be sent to the third user side. The third user end and the server end can realize network communication through a local area network or the Internet, the third user end can be an intelligent terminal used by another approver, and the approval is performed after the approval of the approver using the second user end is completed. After receiving the second reimbursement application form data, the third user terminal can check and audit reimbursement information in the second reimbursement application form data and generate third approved information.

Similarly to the description in the foregoing steps, in order to prevent tampering of the content audited by the third user side, the third user side may further sign the second audit information by using the third private key and generate third signature information, and then generate third reimbursement application form data at least according to the third signature information and the second audit information, and send the third reimbursement application form data to the server side. The specific information included in the third reimbursement application form data is not limited in kind, and can be reasonably selected according to actual application requirements. For example, to reduce the amount of data transmission, the third reimbursement application form data may include only the third signature information and the second trial batch information; in order to ensure the integrity and tamper resistance of the data, the third reimbursement application form data can also comprise second reimbursement application form data besides the third signature information and the second trial batch information.

The third public key and the third private key of the private key pair can be pre-generated, wherein the third public key is also stored in the server side, and the third private key is stored in the third user side.

Step S412, receiving third reimbursement application form data sent by the third user terminal.

In step S413, the third signature information is verified using the third public key.

The third public key is utilized to verify the third signature information, so that whether the third reimbursement application form data are legal or not can be determined, the subsequent processing steps are not limited, and reasonable selection can be performed according to actual application requirements. For example, when the third public key is used to verify that the third signature information fails, it indicates that the third reimbursement application form data is illegal, and the server side may not need to perform subsequent other processing, or may send the third reimbursement application form data to other user sides for approval processing, or may send corresponding prompts to the first user side and/or the second user side. When the third public key is used for verifying the third signature information, the third reimbursement application form data can be stored, or the first reimbursement application form data and/or the third reimbursement application form data can be sent to other user terminals to continue approval processing, and corresponding prompts can be sent to the third user terminal and/or the second user terminal.

Further, in order to improve the reliability of the data storage at the server side, step S413 may further include:

and when the third signature information passes verification, signing the first reimbursement application form data, the second reimbursement application form data and the third reimbursement application form data to obtain target reimbursement application form data.

The method for signing the first reimbursement application form data, the second reimbursement application form data and the third reimbursement application form data by the server side is not limited, and reasonable selection can be performed according to actual application requirements.

Further, when there are multiple approvers, i.e. at least three clients, the embodiment may further include step S414-step S417 after step S407, specifically:

step S414, when the verification of the first signature information is passed, the first reimbursement application data is sent to the second user side and the third user side, so that the second user side can audit the reimbursement information and generate first audit information, and the second private key is used for signing the first audit information and generating second signature information; and the third user terminal can audit the reimbursement information and generate second audit information, and signs the second audit information by using a third private key and generates second signature information.

The first reimbursement application form data are sent to the second user side and the third user side, so that the second user side and the third user side can respectively audit reimbursement information in the first reimbursement application form data.

The method for generating the second signature information and the second signature information, and the method for generating the second reimbursement application form data and the third reimbursement application form data by the second user side and the third user side are substantially the same as or similar to the method in the second embodiment, and are not described herein.

Step S415, receiving the second reimbursement application form data sent by the second user side and the third reimbursement application form data sent by the third user side.

The receiving order of the second reimbursement application form data and the third reimbursement application form data is not limited because different approvers may approve at different times.

In step S416, the second signature information is verified by using the second public key, and the third signature information is verified by using the third public key.

The verification method for the second signature information and the third signature information is basically the same as or similar to the verification method described above, and will not be described in detail herein.

In step S417, when the second signature information and the third signature information are both verified, the first reimbursement application form data, the second reimbursement application form data, and the third reimbursement application form data are stored.

When the second signature information and the third signature information are verified, the two approvers are informed of finishing approval of the reimbursement information, so that the first reimbursement application form data, the second reimbursement application form data and the third reimbursement application form data can be stored for recording the electronic approval process.

Further, in order to improve the reliability of the data storage at the server side, step S417 may further include:

and when the second signature information and the third signature information pass verification, signing the first reimbursement application form data, the second reimbursement application form data and the third reimbursement application form data to obtain target reimbursement application form data.

In addition, it should be noted that, the embodiment is only illustrated by taking two or three approvers as an example, and actually may include more than three approvers, that is, further include a plurality of clients, and each client and the server have an exclusive key pair therebetween. When more approvers exist, the signature can be carried out after all the approvers complete all the audits and send corresponding reimbursement application form data so as to obtain target reimbursement form data.

Optionally, in order to automatically account for the account content in the reimbursement application form, when the second signature information is verified, the target reimbursement application form data may be obtained according to the second reimbursement application form data. The present embodiment may further include the following step S418-step S420, specifically:

Step S418, obtaining a plurality of historical reimbursement bill data and corresponding accounting data.

Wherein the historical reimbursement sheet data is used for recording accounting contents of at least one completed accounting in the reimbursement application sheet. The reimbursement application form is recorded by a manager through manual or electronic automation, the content is not limited, reasonable setting can be carried out according to the requirements of units in practical application, but the required accounting content for accounting by the units is needed, namely, the accounting content in the reimbursement application form can be all the content in the reimbursement application form or part of the content in the reimbursement application form.

For example, the content identified by the reimbursement application form may include reimbursement person, department to which the reimbursement person belongs, reimbursement event, and time frame, reimbursement amount, type of voucher, settlement means, and source of expense to which the reimbursement event corresponds. If the reimbursement application form needs to be examined and approved for billing, the content identified by the reimbursement application form can also comprise an auditor, the job title of the auditor, the audit opinion, the audit time and the like. When the accounting is performed, the accounting entry corresponding to the accounting content can be determined according to the department of the reimbursement person, the reimbursement principal, the reimbursement amount, the voucher type, the settlement mode and the expense source, namely, the department of the reimbursement person, the reimbursement principal, the reimbursement amount, the voucher type, the settlement mode and the expense source belong to the accounting content in the reimbursement application form.

The accounting data of the accounting subjects are used for recording accounting records corresponding to the accounting contents after accounting is completed, one or more levels can be included in the accounting records, one or more categories can be included in each level, the specific structure of the accounting records is not limited, and the accounting records can be reasonably set according to the requirements of units in practical application. In addition, a reimbursement application form may correspond to a plurality of reimbursement vouchers, which may be recorded in different categories when accounting for a reimbursement application form.

The data size of the historical reimbursement bill data is not limited, but in order to improve the accuracy of data processing by using the reimbursement bill accounting subject classification model, as much historical reimbursement bill data as possible can be selected in the step, that is, as many reimbursement bill applications with accounting completed are obtained as much as possible, and the accounting contents in different reimbursement bill with accounting completed are different.

Further, in order to facilitate the extraction and processing of the related information, the historical reimbursement sheet data may be preferably structured data. For example, the accounting contents in the reimbursement application form may be recorded in an XML format.

Step S419, training to obtain a reimbursement bill accounting subject classification model according to all or part of the historical reimbursement bill data and the corresponding accounting subject accounting data.

The reimbursement bill accounting subject classification model is a machine learning model, the input of the model is historical reimbursement bill data or information used for recording accounting contents in reimbursement bill application papers in the historical reimbursement bill data, and the information is output as accounting records corresponding to the accounting contents. After the historical reimbursement bill data and the corresponding accounting data are obtained, a reimbursement bill accounting classification model can be obtained by training through a preset machine learning algorithm according to all or part of the historical reimbursement bill data and the corresponding accounting data. The type of the preset machine learning algorithm is not limited. For example, at least one of a non-linear support vector machine algorithm, a Bayesian classifier algorithm, a K-nearest neighbor algorithm, etc., or any other machine-learned classification algorithm model may be used.

Further, in order to improve the accuracy of data processing by using the reimbursement bill accounting object classification model, only a part of historical reimbursement bill data and corresponding accounting object accounting data can be selected as a training data set to be respectively used as input and output of the reimbursement bill accounting object classification model, and the reimbursement bill accounting object classification model is obtained through training; and selecting a part of historical reimbursement bill data and corresponding accounting account numbers as a test data set, and carrying out test verification on the reimbursement bill accounting account classification model obtained through training so as to evaluate the output accuracy of the reimbursement bill accounting account classification model obtained through training. When the output accuracy of the reimbursement bill accounting object classification model does not reach the preset standard, new historical reimbursement bill data and corresponding accounting object accounting data are added, and training and accuracy assessment are continuously carried out on the reimbursement bill accounting object classification model until the preset standard is reached.

And step S420, processing the target reimbursement bill data by using the reimbursement bill accounting bill classification model to obtain accounting bill data corresponding to the target reimbursement bill data.

The target reimbursement bill data is used for recording accounting contents of at least one incomplete accounting in the reimbursement bill, and an accounting classification model of the reimbursement bill obtained through training can automatically determine accounting records corresponding to the accounting contents in the reimbursement bill of the incomplete accounting, namely accounting data corresponding to the target reimbursement bill data is obtained.

The processing mode of the accounting data corresponding to the target reimbursement single data is not limited, and reasonable selection can be performed according to actual application requirements. For example, accounting can be automatically completed according to accounting data corresponding to the target reimbursement data; accounting data corresponding to the target reimbursement data can also be provided for financial staff, and accounting can be automatically completed after the accounting data is confirmed by the financial staff, or manually recorded by the financial staff for accounting.

Further, considering that automated validation of accounting records using a reimbursement bill accounting category model may be subject to a certain amount of errors, the likelihood of errors may be higher, particularly when the amount of historical reimbursement bill data and corresponding accounting data that train it is less. Thus, in order to ensure the accuracy of the billing result, a step of manual confirmation may be added. Specifically, step S420 may further include:

And E1, processing the target reimbursement bill data by using a reimbursement bill accounting subject classification model to obtain machine classification data corresponding to the target reimbursement bill data.

The machine classification data is data obtained after automatic processing by using a reimbursement bill accounting subject classification model, namely, the machine classification data is used for recording accounting records corresponding to accounting contents obtained by processing the reimbursement bill accounting subject classification model. The machine classification data corresponding to all or part of the target reimbursement data can be displayed to the user by utilizing a preset man-machine interaction interface, and the user confirms all or part of the content and sends corresponding confirmation instructions.

And E2, obtaining accounting data corresponding to the target reimbursement data according to a confirmation instruction of the user to the machine classification data corresponding to the target reimbursement data.

According to the confirmation instruction of the machine classification data corresponding to the target reimbursement single data sent by the user, whether the machine classification data corresponding to the target reimbursement single data obtained after the automatic processing is required to be adjusted or not is determined, if so, according to the confirmation instruction of the machine classification data corresponding to the target reimbursement single data sent by the user, the machine classification data corresponding to the target reimbursement single data is adjusted, and accounting subject accounting data corresponding to the target reimbursement single data is obtained; if not, the machine classification data corresponding to the target reimbursement bill data is used as accounting subject accounting data corresponding to the target reimbursement bill data.

Further, considering that in practical application, when the data amount for training the reimbursement bill accounting subject classification model is enough, the automatic confirmation accuracy of the reimbursement bill accounting subject classification model for accounting and recording can be improved to be very high, and at the stage, if the reimbursement bill accounting subject classification model is fully checked manually, the efficiency is lower. Therefore, in order to improve the billing efficiency, the billing content of the billing entry or the billing content with lower accuracy judgment can not be determined only for the billing account classification model of the reimbursement bill, and the user can confirm again.

Specifically, sub-step E1 includes: and processing the target reimbursement bill data by using the reimbursement bill accounting subject classification model to obtain machine classification data and machine unclassified data corresponding to the target reimbursement bill data. Wherein the machine unclassified data is used to record billing content for which the reimbursement sheet accounting subject classification model is indeterminate of classification.

Correspondingly, sub-step E2 comprises: and providing the unclassified data of the machine corresponding to the target reimbursement single data for the user to confirm. And according to a confirmation instruction of the user to the unclassified data of the machine corresponding to the target reimbursement single data, acquiring accounting subject accounting data corresponding to the target reimbursement single data.

According to a confirmation instruction of a user on unclassified data of a machine corresponding to target reimbursement bill data, determining an accounting entry corresponding to accounting content which cannot be classified by an accounting classification model, obtaining manual classification data corresponding to the target reimbursement bill data, and taking the manual classification data and the machine classification data corresponding to the target reimbursement bill data together as corresponding accounting account data.

In addition, when the target reimbursement data does not have corresponding machine unclassified data, the machine classified data corresponding to the target reimbursement data can be directly used as corresponding accounting account data.

Further, in order to avoid the risk of compliance due to classification errors of the reimbursement bill accounting object classification model, billing content with lower classification accuracy of the reimbursement bill accounting object classification model may be determined as machine unclassified data. Specifically, sub-step E1 may further comprise:

and classifying the target reimbursement single data by using a reimbursement single accounting subject classification model to obtain preliminary classification data and classification accuracy evaluation data corresponding to the target reimbursement single data.

The primary classification data is used for recording an accounting entry of which the accounting content is divided by the account classification model of the reimbursement bill; the classification accuracy evaluation data is used for recording accuracy evaluation values of each account content classified by the reimbursement bill accounting subject classification model.

When the accuracy evaluation value of the accounting content is larger than or equal to a preset evaluation threshold value, determining preliminary classification data corresponding to the accounting content as machine classification data; when the accuracy evaluation value of the billing content is smaller than a preset evaluation threshold value, the billing content is determined as machine unclassified data.

The evaluation threshold can be reasonably set according to actual demands of units, so that the demand of different types of units can be better met by training to obtain the reimbursement bill accounting subject classification model.

Optionally, after step S420, the method may further include: and updating the account classification model of the reimbursement bill according to the account accounting data corresponding to the target reimbursement bill data.

Along with the increasing number of reimbursement application forms after accounting, namely, the continuously accumulation of historical reimbursement form data and corresponding accounting subject accounting data, the classification accuracy of accounting records corresponding to the accounting contents determined by using the reimbursement form accounting subject classification model can be improved continuously.

Therefore, the generated reimbursement bill accounting subject classification model is a machine learning model formed by using big data of accounting completed by the units, so that accounting rules of different scales and different types of units can be flexibly adapted, the workload of financial staff is lightened, and the compliance risk possibly caused by misselection or misfilling of the financial staff of the units can be effectively avoided.

Example five

An embodiment five of the present application provides an electronic reimbursement certificate transmission device, and fig. five is a schematic structural diagram of an electronic reimbursement certificate transmission device disclosed in an embodiment three of the present application, where the device includes:

the identification module is used for identifying the two-dimensional code image data to obtain credential encryption data; the two-dimensional code image data is generated by encrypting the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by an internet server through a preset encryption algorithm.

And the decryption module is used for decrypting the certificate encrypted data to obtain electronic reimbursement certificate decrypted data.

Optionally, the electronic reimbursement voucher data comprises content sub-data and format sub-data, wherein the content sub-data is used for representing the content of the electronic reimbursement voucher, and the format sub-data is used for representing the format structure of the electronic reimbursement voucher; the two-dimensional code image data is generated by encrypting the content sub-data corresponding to the target electronic reimbursement certificate by using a preset encryption algorithm through the internet server.

The voucher generating module is also used for decrypting data according to the electronic reimbursement vouchers to obtain content sub-data corresponding to the target electronic reimbursement vouchers; and regenerating the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by utilizing a preset electronic reimbursement voucher construction algorithm according to the content sub-data corresponding to the target electronic reimbursement voucher.

Optionally, when the format of the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher is PDF, the internet server may process the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by using a preset data extraction algorithm, so as to obtain content sub-data corresponding to the target electronic reimbursement voucher.

Optionally, the two-dimensional code image data corresponding to the target electronic reimbursement certificate includes one or more first image sub-data, each first image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by each first image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate, at least part of encrypted content sub-data and serial number information corresponding to each first image sub-data.

The identification module is also used for identifying all the first image sub-data and obtaining the certificate encryption data according to the serial number information corresponding to each first image sub-data and the unique identification information corresponding to the target electronic reimbursement certificate.

Optionally, the unique identification information corresponding to the target electronic reimbursement voucher is determined according to the content sub-data corresponding to the target electronic reimbursement voucher.

Optionally, the two-dimensional code image data corresponding to the target electronic reimbursement certificate includes a second image sub-data, the second image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by the second image sub-data is at least used for recording the unique identification information corresponding to the target electronic reimbursement certificate and the quantity information of the first image sub-data.

Optionally, the device further includes a key generation module, configured to generate a pair of asymmetric public key and private key by using a preset encryption algorithm, and send the public key to the internet server, so that the internet server can encrypt the electronic reimbursement credential data corresponding to the target electronic reimbursement credential by using the public key.

Optionally, the device further comprises an application form generating module, which is used for screening the electronic reimbursement voucher data according to the business trip application data to obtain traffic voucher data corresponding to the target business trip; the business trip application data are at least used for recording a business trip person, a business trip starting point, a business trip destination and a business trip end point of a target business trip; the electronic reimbursement voucher data is used for recording the content identified on at least one electronic reimbursement voucher; the traffic voucher data is used for recording the consumption amount, the journey starting point and the journey ending point marked on at least one traffic reimbursement voucher;

Generating reimbursement application form data according to the traffic evidence data corresponding to the target business trip; the reimbursement application form data are at least used for recording the business trip people of the target business trip and the consumption amount, the trip starting point and the trip ending point corresponding to all traffic reimbursement certificates needing reimbursement.

Optionally, the device further comprises a credential management module, configured to parse target mail data received by a mailbox of the target user, and determine whether the target mail data is used to extract electronic reimbursement credential data; wherein the electronic reimbursement voucher data is used for recording content identified on at least one electronic reimbursement voucher;

when the target mail data is determined to be used for extracting the electronic reimbursement voucher data, acquiring the corresponding electronic reimbursement voucher data according to the target mail data;

generating user associated data and storing electronic reimbursement credential data corresponding to the user associated data and the target mail data; the user association data is used for identifying the association relationship between the target user and the electronic reimbursement credential data corresponding to the target mail data.

The electronic reimbursement certificate transmission device of the embodiment can realize the corresponding electronic reimbursement certificate transmission method in the method embodiments, has the beneficial effects of the corresponding method embodiments, and is not repeated herein.

Thus far, specific embodiments of the present application have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should also be noted that 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 one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

It will be apparent to those skilled in the art that embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments in part.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. A method of transmitting electronic reimbursement vouchers, the method comprising:

the intranet terminal identifies all the first image sub-data, and obtains certificate encryption data according to the serial number information corresponding to each first image sub-data and the unique identification information corresponding to the target electronic reimbursement certificate; the electronic reimbursement voucher data comprises content sub-data and format sub-data, wherein the content sub-data is used for representing the content of the electronic reimbursement voucher, and the format sub-data is used for representing the format structure of the electronic reimbursement voucher; the target electronic reimbursement certificate is an electronic reimbursement certificate which needs to be transmitted from an internet server to an intranet terminal; the two-dimensional code image data is generated by encrypting the content sub-data corresponding to the target electronic reimbursement certificate by an internet server through a preset encryption algorithm; the two-dimensional code image data corresponding to the target electronic reimbursement certificate comprises one or more first image sub-data and one second image sub-data, each first image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by each first image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate, at least part of encrypted content sub-data and serial number information corresponding to each first image sub-data; the second image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by the second image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate and the quantity information of the first image sub-data;

The intranet terminal decrypts the certificate encrypted data to obtain electronic reimbursement certificate decrypted data;

the intranet terminal decrypts the data according to the electronic reimbursement certificate to obtain the content sub-data corresponding to the target electronic reimbursement certificate;

and the intranet terminal regenerates the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by utilizing a preset electronic reimbursement voucher construction algorithm according to the content sub-data corresponding to the target electronic reimbursement voucher.

2. The method of claim 1, wherein when the format of the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher is PDF format, the internet server processes the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher using a preset data extraction algorithm to obtain the content sub-data corresponding to the target electronic reimbursement voucher.

3. The method of claim 1, wherein the unique identification information corresponding to the target electronic reimbursement voucher is determined from the content sub-data corresponding to the target electronic reimbursement voucher.

4. The method according to claim 1, wherein the method further comprises:

And generating a pair of asymmetric public keys and private keys by using a preset encryption algorithm, and sending the public keys to the Internet server so that the Internet server encrypts the electronic reimbursement credential data corresponding to the target electronic reimbursement credential by using the public keys.

5. The method according to claim 1, wherein the method further comprises:

screening the electronic reimbursement evidence data according to the business trip application data to obtain traffic evidence data corresponding to a target business trip; the business trip application data are at least used for recording a business trip person, a business trip starting point, a business trip destination and a business trip end point of a target business trip; the electronic reimbursement voucher data is used for recording content identified on at least one electronic reimbursement voucher; the traffic evidence data is used for recording the consumption amount, the journey starting point and the journey ending point marked on at least one traffic reimbursement evidence;

generating reimbursement application form data according to the traffic evidence data corresponding to the target business trip; the reimbursement application form data are at least used for recording the business trip person of the target business trip and the consumption amount, the trip starting point and the trip ending point corresponding to all traffic reimbursement certificates needing reimbursement.

6. The method according to claim 1, wherein the method further comprises:

analyzing target mail data received by a mailbox of a target user, and judging whether the target mail data is used for extracting electronic reimbursement evidence data or not; wherein the electronic reimbursement voucher data is used for recording content identified on at least one electronic reimbursement voucher;

when the target mail data is determined to be used for extracting the electronic reimbursement credential data, acquiring the corresponding electronic reimbursement credential data according to the target mail data;

generating user associated data and storing the electronic reimbursement credential data corresponding to the user associated data and the target mail data; the user association data is used for identifying the association relationship between the target user and the electronic reimbursement credential data corresponding to the target mail data.

7. An electronic reimbursement credential transmission device, comprising:

the identification module is used for identifying all the first image sub-data by the intranet terminal, and acquiring credential encryption data according to the serial number information corresponding to each first image sub-data and the unique identification information corresponding to the target electronic reimbursement credential; the electronic reimbursement voucher data comprises content sub-data and format sub-data, wherein the content sub-data is used for representing the content of the electronic reimbursement voucher, and the format sub-data is used for representing the format structure of the electronic reimbursement voucher; the target electronic reimbursement certificate is an electronic reimbursement certificate which needs to be transmitted from an internet server to an intranet terminal; the two-dimensional code image data is generated by encrypting the content sub-data corresponding to the target electronic reimbursement certificate by an internet server through a preset encryption algorithm; the two-dimensional code image data corresponding to the target electronic reimbursement certificate comprises one or more first image sub-data and one second image sub-data, each first image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by each first image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate, at least part of encrypted content sub-data and serial number information corresponding to each first image sub-data; the second image sub-data is used for representing a two-dimensional code, and the two-dimensional code represented by the second image sub-data is at least used for recording unique identification information corresponding to the target electronic reimbursement certificate and the quantity information of the first image sub-data;

The decryption module is used for decrypting the certificate encrypted data by the intranet terminal to obtain electronic reimbursement certificate decrypted data;

the certificate generation module is used for the intranet terminal to acquire the content sub-data corresponding to the target electronic reimbursement certificate according to the electronic reimbursement certificate decryption data; and the intranet terminal regenerates the electronic reimbursement voucher data corresponding to the target electronic reimbursement voucher by utilizing a preset electronic reimbursement voucher construction algorithm according to the content sub-data corresponding to the target electronic reimbursement voucher.