Supplier qualification information detection method and system based on electronic certificate

Abstract

The invention relates to the technical field of data processing, and discloses a supplier qualification information detection method and system based on an electronic license, and the method comprises the steps: carrying out the dynamic monitoring and change of a license database, and obtaining a license change database; matching certificate information in a certificate change database according to the certificate collection time; when the electronic certificate exists in the certificate change database, determining qualification information of the target supplier according to an electronic certificate state in the certificate change database; when the electronic certificate does not exist in the certificate change database, determining a failure factor and a change factor of the electronic certificate according to the certificate characteristics of the electronic certificate, and generating a change strategy of the electronic certificate according to the failure factor and the change factor; and dynamically changing the electronic certificate by using the change strategy, verifying the dynamically changed electronic certificate, and determining qualification information of the target supplier according to the verified electronic certificate. According to the invention, the precision of supplier qualification detection can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and particularly to a method and system for detecting supplier qualification information based on electronic certificates. Background Art

[0002] In the context of increasingly strict industry regulations, enterprises need to ensure that suppliers have legal and compliant operating qualifications. In order to timely obtain the latest information on supplier qualifications, ensure that the supplier information held by the enterprise is accurate and up-to-date, and reduce cooperation risks caused by inaccurate or expired information, it is necessary to analyze the electronic certificates of suppliers to identify the qualification information of suppliers.

[0003] The existing supplier qualification information detection technology converts the text information in electronic certificates into an editable text format, and then automatically identifies and extracts the key information in the supplier qualification documents. In practical applications, there is an update process for electronic certificates. Relying solely on the original electronic certificates to analyze the qualification information results in overly single detection of supplier qualification information, thereby leading to low accuracy in detecting supplier qualification information. Summary of the Invention

[0004] The present invention provides a method and system for detecting supplier qualification information based on electronic certificates, and its main purpose is to solve the problem of low accuracy in detecting supplier qualifications.

[0005] To achieve the above object, a method for detecting supplier qualification information based on electronic certificates provided by the present invention includes:

[0006] Dynamically monitor and change a preset certificate database within a preset time period to obtain a certificate change database;

[0007] Match the certificate information in the certificate change database according to the certificate collection time of the electronic certificate of the target supplier;

[0008] Identify whether the electronic certificate exists in the certificate change database according to the certificate information. When the electronic certificate exists in the certificate change database, determine the qualification information of the target supplier according to the status of the electronic certificate in the certificate change database;

[0009] When the electronic certificate does not exist in the certificate change database, determine the invalidation factor and change factor of the electronic certificate according to the certificate characteristics of the electronic certificate, and generate a change strategy for the electronic certificate according to the invalidation factor and the change factor;

[0010] Dynamically change the electronic certificate using the change strategy, and verify the dynamically changed electronic certificate, and determine the qualification information of the target supplier according to the verified electronic certificate.

[0011] Optionally, the dynamic monitoring and change of a preset license database within a preset time period to obtain a license change database includes:

[0012] Extracting target field data in the license database through a preset initial change time window;

[0013] Comparing the initial field data in the license database with the target field data to obtain changed field data;

[0014] Changing the field attributes in the license database according to the changed field data to obtain a license change database;

[0015] Updating the initial change time window according to the preset time period, updating the target field data to the initial field data, and returning to the step of extracting the target field data in the license database through the preset initial change time window until the time period reaches the preset time range.

[0016] Optionally, the matching of the license information in the license change database according to the license collection time of the target supplier includes:

[0017] Extracting a set of license change records in the license change database at the license collection time by using the following data screening logical expression:

[0018] Q = {s ∈ S | s_id = target_id ∧ s_time ≥ standardized_time}

[0019] where Q is the set of license change records, S is the set of all license change records, s is any record in the set of license change records, s_id is the supplier identifier in the record, target_id is the target supplier identifier, s_time is the change time in the record, and standardized_time is the license collection time;

[0020] Determining license information according to the license field data in the set of license change records.

[0021] Optionally, before determining the qualification information of the target supplier according to the electronic license status in the license change database, it further includes:

[0022] Performing multi-field joint positioning on the license fields in the license change database according to the license identifier of the electronic license to obtain electronic license field data;

[0023] Determining the composite license status of the electronic license according to the electronic license field data;

[0024] Determine the electronic certificate status according to the field status value corresponding to the certificate compound status.

[0025] Optionally, before determining the expiration factor and change factor of the electronic certificate according to the certificate characteristics of the electronic certificate, it further includes:

[0026] Classify the certificate type of the electronic certificate by using a pre-constructed certificate characteristic decision tree to obtain a certificate type branch;

[0027] Determine the certificate characteristics of the electronic certificate through the certificate type branch.

[0028] Optionally, determining the expiration factor and change factor of the electronic certificate according to the certificate characteristics of the electronic certificate includes:

[0029] Calculate the expiration risk index of the electronic certificate according to the time factor characteristic in the certificate characteristics:

[0030]

[0031] Where F is the expiration risk index, α is the first weight coefficient, β is the second weight coefficient, γ is the third weight coefficient, t1 is the real-time time, t2 is the certificate issuance time, t3 is the expiration time of the certificate validity period, T1 is the total expected usage duration of the certificate, T2 is the duration of the certificate validity period, t4 is the certificate update time, and T3 is the update frequency duration;

[0032] Determine the expiration factor of the electronic certificate according to the expiration risk index, and determine the change urgency index of the electronic certificate according to the expiration factor:

[0033]

[0034] Where C is the change urgency index, δ is the urgency impact weight, T4 is the change notification duration, and min is the minimum value function;

[0035] Determine the change factor of the electronic certificate according to the change urgency index.

[0036] Optionally, generating the change strategy of the electronic certificate according to the expiration factor and the change factor includes:

[0037] Generate a change index vector according to the expiration factor and the change factor;

[0038] Determine the change process and change materials of the electronic certificate according to the change index vector;

[0039] Generate the change strategy of the electronic certificate according to the change process and the change materials.

[0040] Optionally, verifying the electronically signed certificate after dynamic change includes:

[0041] Determining the associated partner identifier of the target supplier based on the electronically signed certificate after dynamic change;

[0042] Calculating the supply chain risk index of the target supplier based on the associated partner identifier:

[0043]

[0044] where S is the supply chain risk index, w i is the cross-weight of the partner in the i-th associated partner identifier, n is the number of associated partner identifiers, A i is the number of times of arrears of material costs of the partner in the i-th associated partner identifier, M i is the number of times of material costs of the partner in the i-th associated partner identifier, B i is the number of times of feedback on product quality problems of the partner in the i-th associated partner identifier, N i is the number of times of material deliveries of the partner in the i-th associated partner identifier;

[0045] Determining the verification value of the electronically signed certificate based on the supply chain risk index.

[0046] Optionally, determining the qualification information of the target supplier based on the verified electronically signed certificate includes:

[0047] When the verification value of the verified electronically signed certificate is a preset first verification threshold, determining the qualification information as the first-level qualification;

[0048] When the verification value of the verified electronically signed certificate is greater than the preset first verification threshold and less than the preset second verification threshold, determining the qualification information as the second-level qualification;

[0049] When the verification value of the verified electronically signed certificate is the preset second verification threshold, determining the qualification information as the third-level qualification.

[0050] To solve the above problems, the present invention also provides a supplier qualification information detection system based on an electronically signed certificate, and the system includes:

[0051] A dynamic monitoring and change module, configured to perform dynamic monitoring and change on a preset certificate database within a preset time period to obtain a certificate change database;

[0052] A certificate information matching module, configured to match the certificate information in the certificate change database according to the certificate collection time of the electronically signed certificate of the target supplier;

[0053] The first qualification information determination module is used to identify whether the electronic license exists in the license change database according to the license information. When the electronic license exists in the license change database, the qualification information of the target supplier is determined according to the status of the electronic license in the license change database;

[0054] The change strategy generation module is used to, when the electronic license does not exist in the license change database, determine the invalidation factor and change factor of the electronic license according to the license characteristics of the electronic license, and generate a change strategy for the electronic license according to the invalidation factor and the change factor;

[0055] The second qualification information determination module is used to dynamically change the electronic license by using the change strategy, verify the dynamically changed electronic license, and determine the qualification information of the target supplier according to the verified electronic license.

[0056] In the embodiment of the present invention, by dynamically monitoring and changing the license database within a time period, the change of license information can be captured in time, and the dynamic monitoring ensures that the license information in the database is always up-to-date; through the license collection time, the license change record of the target supplier after this time point can be accurately found in the license change database; by detecting the status of the electronic license, such as normal, expired, revoked, etc., the enterprise can judge whether the supplier has the qualification for legal operation. Avoid cooperating with suppliers with abnormal electronic license status; identifying license characteristics and determining invalidation factors and change factors can detect in advance the possible invalidation risks or situations that need to be changed of the electronic license; using the change strategy to dynamically change the electronic license enables the license to reflect the actual situation of the enterprise in time; the multi-dimensional cross-verification algorithm verifies the changed electronic license from multiple dimensions such as supply chain risk, and the obtained verification value can more comprehensively reflect the qualification information of the supplier. Therefore, the method and system for detecting supplier qualification information based on electronic licenses proposed by the present invention can solve the problem of low accuracy in supplier qualification detection. Brief Description of the Drawings

[0057] Figure 1 It is a schematic flow chart of a method for detecting supplier qualification information based on electronic licenses provided by an embodiment of the present invention;

[0058] Figure 2 It is a functional module diagram of a system for detecting supplier qualification information based on electronic licenses provided by an embodiment of the present invention.

[0059] The realization, functional characteristics and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0060] It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0061] An embodiment of the present application provides a method for detecting supplier qualification information based on electronic certificates. The execution subject of the method for detecting supplier qualification information based on electronic certificates includes, but is not limited to, at least one of electronic devices such as a server, a terminal, etc. that can be configured to execute the method provided by the embodiment of the present application. In other words, the method for detecting supplier qualification information based on electronic certificates can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to: a single server, a server cluster, a cloud server, or a cloud server cluster, etc. The server can be an independent server or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, Content Delivery Network (CDN), and big data and artificial intelligence platforms.

[0062] Refer to Figure 1 As shown, it is a flowchart of a method for detecting supplier qualification information based on electronic certificates provided by an embodiment of the present invention. In this embodiment, the method for detecting supplier qualification information based on electronic certificates includes:

[0063] S1. Dynamically monitor and change a preset certificate database within a preset time period to obtain a certificate change database.

[0064] In an embodiment of the present invention, the certificate database is a collection of data related to various electronic certificates, which contains various certificate information of many suppliers, such as business licenses, qualification certificates, licenses, etc. The data in the certificate database is stored in the form of fields, and each field records the specific attributes of the certificate, such as enterprise name, unified social credit code, certificate validity period, business scope, etc. The field data constitutes a description of the status and related information of each supplier's electronic certificate; the certificate change database refers to the database generated during the dynamic monitoring of the certificate database and is used to specifically record the changes in certificate data. This database details which field data in the certificate database has changed at different time points and the specific content before and after the change, and can clearly trace the change history of the certificate information.

[0065] In an embodiment of the present invention, the step of dynamically monitoring and changing a preset certificate database within a preset time period to obtain a certificate change database includes:

[0066] Extract target field data in the certificate database through a preset initial change time window;

[0067] Compare the initial field data in the license database with the target field data to obtain changed field data;

[0068] Change the field attributes in the license database according to the changed field data to obtain a license change database;

[0069] Update the initial change time window according to a preset time period, update the target field data to the initial field data, and return to the step of extracting the target field data in the license database through the preset initial change time window until the time period reaches a preset time range.

[0070] Specifically, when starting dynamic monitoring, first obtain the current data of all relevant fields from the license database. These data constitute the license information in the initial state. For example, obtain the current values of fields such as the enterprise name, unified social credit code, business scope, and registered capital in all supplier business licenses. The preset time period is the time interval for monitoring license data changes, such as every thirty minutes or every hour. The initial change time window is determined based on this preset time period. For example, if the preset time period is every hour, the initial change time window may start from 10 o'clock and end at 11 o'clock. Then, in the initial change time window, extract the relevant field data from the license database again. These data are the target field data, which corresponds to the initial field data and is used to find the changed part in the subsequent comparison. Assume that the initial field data is extracted at 10 o'clock, and the data of the same field is extracted again at 11 o'clock as the target field data.

[0071] Specifically, through a comparison algorithm, the initial field data and the target field data are compared one by one. For example, when comparing the business scope fields of the business license extracted twice, if the initial data is "electronic product sales" and the target data becomes "electronic product sales and R & D", then the business scope field is the changed field data, and at the same time, the specific change content is recorded, that is, it changes from "electronic product sales" to "electronic product sales and R & D"; According to the found changed field data, record these change situations in the license change database. Suppose there are fields such as change record ID, supplier identifier, license type, change time, information before change, information after change, etc. in the license change database. For the above example of business scope change, insert a record into the license change database. The change record ID is the generated unique number, the supplier identifier is the identifier of the corresponding enterprise, the license type is the business license, the change time is 11 o'clock (the end time of this monitoring), the information before change is "electronic product sales", and the information after change is "electronic product sales and R & D". After completing one monitoring and change record, update the change time window according to the preset time period. If the preset time period is every hour and the original time window is 10 o'clock, it becomes 11 o'clock after update. At the same time, use the target field data obtained from this monitoring as the initial field data for the next monitoring, and then extract the target field data in the license database again according to the new time window, and repeat the above steps of comparison and recording changes, and continuously loop this process until the preset entire monitoring time range is reached, such as continuously monitoring for one day, etc.

[0072] Furthermore, in order to be able to timely grasp the latest qualification status of the supplier, it can be judged whether the license information is updated in a timely manner through matching, ensuring that the qualification information relied on is accurate and effective, avoiding cooperation with suppliers whose information lags behind and does not match the qualifications, and reducing business risks.

[0073] S2. Match the license information in the license change database according to the license collection time of the electronic license of the target supplier.

[0074] In the embodiment of the present invention, the electronic license refers to the electronic image version of the paper license, which comprehensively reflects the legal information such as the identity, qualification, and license of an enterprise or an individual. For example, the electronic license of the business license of an enterprise includes key registration information such as the enterprise name, unified social credit code, business scope, and registered capital. Among them, the electronic license of the target supplier can be obtained from the pre-stored storage area through computer statements with data scraping functions (such as Java statements, Python statements, etc.), and the storage area includes but is not limited to databases and blockchains.

[0075] Furthermore, the license change database records the changes in the license information in real time. In order to be able to accurately locate the license changes that occur after this time point, it is necessary to determine the license collection time, and through the collection time, the change records can be quickly queried in the license database.

[0076] In the embodiments of the present invention, the certificate collection time refers to the specific moment when the electronic certificate is obtained, which is a timestamp information. This time can reflect the time point when the electronic certificate is issued by the relevant authoritative department or obtained and digitally stored by the enterprise. By recording and using this time, the timeliness of the certificate information can be clarified. In subsequent processes, such as when matching with the certificate change database, it is used to accurately locate the certificate information changes that occurred after this time, helping to determine whether the certificate information is in the latest state.

[0077] In the embodiments of the present invention, matching the certificate information in the certificate change database according to the certificate collection time of the electronic certificate of the target supplier includes:

[0078] Extracting the certificate change record set in the certificate change database at the certificate collection time by using the following data screening logical expression:

[0079] Q = {s ∈ S|s_id = target_id ∧ s_time ≥ standardized_time}

[0080] Where Q is the certificate change record set, S is the set of all certificate change records, s is any record in the certificate change record set, s_id is the supplier identifier in the record, target_id is the target supplier identifier, s_time is the change time in the record, and standardized_time is the certificate collection time;

[0081] Determining the certificate information according to the certificate field data in the certificate change record set.

[0082] Specifically, the role of the data screening logical expression is to accurately screen out the records that meet specific conditions from the huge set S of all certificate change records in the certificate change database to form a new certificate change record set Q. And s represents each certificate change record in the S set, and s_id is the unique code used to identify the supplier in each record. By comparing it with target_id (i.e., the target supplier identifier of concern), it is ensured that the screened records belong to the target supplier. s_time is the time when the certificate changes in each record. Only when s_time is greater than or equal to standardized_time (certificate collection time), this record will be included in the screening scope, thus ensuring that the screened records are the changes that occurred after the certificate collection time, that is, the possible changes in the supplier qualification after collecting the certificate.

[0083] Specifically, after obtaining the set Q of eligible license change records, relevant field data related to the license needs to be extracted from each record in the set Q. The field data includes detailed information about the license change, such as license type, content before change, content after change, change time, etc. For different types of licenses, the field data will vary, but they are all key information for describing the specific situation of the license change. For example, for business license change records, field data such as the values of the enterprise name before and after the change and the changed content of the business scope may be extracted. By analyzing and integrating the extracted license field data, the license information is finally determined. It is necessary to comprehensively consider the association and logical relationship between each field. For example, by comparing the field data of the business scope before and after the change and the field data of the change time, it is determined when and how the business scope of the target supplier has changed after the license collection, and then judge the impact of this change on the supplier's qualification. If the business scope expands and involves new high-profit business areas, it may mean that the supplier's business ability and market potential have improved; on the contrary, if the business scope shrinks or there are some illegal change situations, it may imply that there are problems with the supplier's qualification. Through in-depth analysis of the license field data, the license information of the target supplier can be determined comprehensively and accurately, providing a strong basis for evaluating the supplier's qualification.

[0084] Furthermore, it is necessary to determine whether the license information corresponding to the license collection time exists in a pre-determined license database to ensure that the source of the supplier license information obtained by the enterprise is authoritative and reliable, and to avoid using forged or incorrect licenses.

[0085] S3. Identify whether the electronic license exists in the license change database according to the license information. When the electronic license exists in the license change database, determine the qualification information of the target supplier according to the status of the electronic license in the license change database.

[0086] In the embodiment of the present invention, to identify whether the electronic license exists in the license change database according to the license information, the unique license identifier of the electronic license is matched one by one with the license identifiers in the license change database. When a license identifier is matched, it means that the electronic license exists in the license change database. And when it exists in the database, it means that the supplier's electronic license has been stored in the license database, and only the license status of the electronic license needs to be detected through the license change database.

[0087] In the embodiments of the present invention, the certificate status refers to a comprehensive description of the current validity, compliance, and business status of the electronic certificate, reflecting whether the electronic certificate complies with relevant laws, regulations, and business requirements, and whether it can be used as a valid certificate for an enterprise to legally conduct business. For example, the normal status indicates that the electronic certificate is within the validity period, the enterprise's business activities are compliant, and the certificate can be normally used in various business scenarios; the expired status means that the validity period of the certificate has passed, and the enterprise may need to go through the renewal procedures in a timely manner, otherwise it may affect its legal operation; the revoked status indicates that the enterprise's certificate has been revoked by the competent authority in accordance with the law due to violation of relevant laws or regulations, and the enterprise cannot legally conduct relevant business during the revocation period.

[0088] In the embodiments of the present invention, before determining the qualification information of the target supplier according to the electronic certificate status in the certificate change database, the following steps are further included:

[0089] Extract the certificate identifier of the electronic certificate, and perform multi-field joint positioning on the certificate fields in the certificate change database according to the certificate identifier to obtain the electronic certificate field data;

[0090] Identify the status field data of the electronic certificate according to the electronic certificate field data;

[0091] Determine the certificate composite status of the electronic certificate according to the status field data;

[0092] Parse the field status value in the status field data according to the certificate composite status;

[0093] Determine the certificate status of the electronic certificate according to the field status value.

[0094] Specifically, the certificate identifier is the key information used to uniquely identify the electronic certificate. A large amount of certificate-related information is stored in the certificate change database. To accurately locate the record of the target electronic certificate, relying solely on a single certificate identifier may not be accurate or comprehensive enough. Therefore, it is necessary to perform joint positioning by combining multiple fields. In addition to the certificate identifier, it also includes fields such as enterprise name and certificate type. Assume that there is a table named certificates in the certificate change database, and the table contains fields such as credit_code (uniform social credit code), certificate_type (certificate type), and enterprise_name (enterprise name). Taking the uniform social credit code as the main positioning basis and combining the certificate type and enterprise name for joint positioning, the SQL query statement is as follows: SELECT * FROM certificates;

[0095] WHERE credit_code = [extracted_credit_code];

[0096] AND certificate_type = [extracted_certificate_type];

[0097] AND enterprise_name = [extracted_enterprise_name], then through the multi-field joint query, it is possible to more accurately locate the record row corresponding to the target electronic certificate in the database, obtain all the field data related to it, that is, the electronic certificate field data. After obtaining the electronic certificate field data, it is necessary to identify the field used to represent the certificate status. For different types of electronic certificates, the name and storage method of the status field may be different. For example, for the business license, the status field may be named license_status; for the qualification certificate, the status field may be certificate_status. Usually, when designing the database table structure, the status field will be clearly defined and marked. Then, by referring to the database table structure document or according to the field naming rules, determine which field is used to record the certificate status. Once the status field is determined, extract the value of this field from the electronic certificate field data. Suppose in the certificates table, the license_status field stores the status information of the business license. After locating the record row of the target electronic certificate, extract the value of the license_status field in this row. This value is the status field data of the electronic certificate. For example, the value of this field may be normal, expired, revoked, etc.

[0098] Specifically, the certificate complex status describes the overall status of an electronic certificate by synthesizing multiple factors or sub - statuses. It not only depends on a single status field value but may also incorporate other relevant information, such as the validity period, whether there are unprocessed change applications, etc. For example, for a business license, its complex status may include multiple dimensions such as the basic status (normal, expired, etc.), the annual inspection status (annual inspection completed, not yet inspected), and whether there are any abnormal operation records. Then, based on the extracted status field data and other relevant electronic certificate field data, the certificate complex status is determined according to pre - set rules. If the value of the license_status field of the business license is normal, the value of the inspection_status (annual inspection status) field is "annual inspection completed", and the operation_records (abnormal operation record) field is empty, then the certificate complex status of this business license can be determined as normal and annual inspection completed, without abnormal operations, thus more comprehensively and accurately reflecting the actual status of the electronic certificate. The field status values in the status field data may be represented in different forms. For example, in the status value mapping table, it is stipulated that 1 corresponds to normal, 2 corresponds to expired, 3 corresponds to revoked, etc. According to the parsing rules, the field status values in the status field data are parsed. Assuming the value of the status field data is 2, by referring to the status value mapping table, it is parsed as expired. Then the status field data is parsed into specific field status values, and the certificate complex status is determined. Finally, based on this information, the certificate status of the electronic certificate is determined. If the field status value is parsed as expired and the certificate complex status also clearly shows the presence of expiration - related situations, then it can be determined that the certificate status of this electronic certificate is expired. When cooperating with a supplier, if the status of its business license is expired, it may be necessary to re - evaluate the feasibility and risks of the cooperation.

[0099] Furthermore, the qualifications of the supplier are directly related to the feasibility and stability of the enterprise's cooperation with it. Therefore, it is necessary to determine the qualification information of the target supplier according to the certificate status of the supplier's electronic certificate.

[0100] In the embodiments of the present invention, the qualification information comprehensively reflects the situation of the target supplier in terms of business capabilities, reputation, compliance, etc., including but not limited to the business scope of the supplier, production capacity, product or service quality level, financial status, past performance, industry reputation, and whether it complies with laws, regulations, and industry norms.

[0101] In the embodiments of the present invention, determining the qualification information of the target supplier according to the certificate status includes: identifying the qualification level of the target supplier according to the certificate status; verifying the qualification score of the target supplier through the qualification level; and determining the qualification information of the target supplier according to the qualification score.

[0102] Specifically, a corresponding mapping relationship between the license status and the supplier qualification level is established. If the qualification certificate status is "normal, within the validity period, and annual inspection qualified", it corresponds to the first-level qualification; if the qualification certificate status is "normal, within the validity period, and annual inspection unqualified", it corresponds to the second-level qualification; if the certificate status is "expired and not renewed", it corresponds to the third-level qualification; if the certificate status is "revoked", its qualification level corresponds to no valid qualification. Thus, the qualification level of the supplier can be initially judged through the intuitive license status. After obtaining the electronic license status of the target supplier, compare it with the established mapping relationship. If the business license status shows revocation, according to the mapping relationship, directly determine the qualification level of this supplier as no valid qualification, indicating that it has lost its legal business qualification and is in an extremely poor state in terms of qualification. If the business license status is "normal, within the validity period, and annual inspection qualified", the qualification level is the first-level qualification.

[0103] Specifically, to more quantitatively evaluate the supplier qualification, corresponding qualification score ranges are set for different qualification levels. If its qualification level is identified as the first-level qualification, the corresponding qualification score range is 80 - 100 points; if its qualification level is identified as the second-level qualification, the corresponding qualification score range may be 50 - 80 points; if its qualification level is identified as no valid qualification, the corresponding qualification score range may be 0 - 20 points. The setting of the score range is not fixed and will be adjusted regularly according to market dynamics and industry development. Once the qualification level of the target supplier is determined, its specific qualification score can be determined within the corresponding score range. For example, if a supplier is identified as the second-level qualification level after license status identification, and the corresponding qualification score range for this level is 50 - 80 points. Further analyze factors such as the supplier's market share, customer satisfaction, and technological innovation ability in the industry. If it performs well in these aspects, its qualification score can be determined as 75 points; if it performs average, it may be determined as 65 points. According to the determined qualification score, match the corresponding detailed qualification information from the pre-established qualification information database. The qualification information database stores the supplier qualification characteristic descriptions corresponding to different qualification score intervals. For example, when a supplier's qualification score is 75 points, query the qualification information corresponding to the score interval (such as the 70 - 80 points interval) in the qualification information database, and get the following description: "The business scope covers the main domestic regions, has advanced production equipment and technical teams, the product quality reaches international standards, the average annual turnover in the past three years has reached [X] million yuan, successfully completed multiple major projects, the customer complaint rate is lower than [X]%, and there is no record of any illegal business operations." Thus, the abstract qualification score is transformed into specific and referenceable supplier qualification information, providing a strong basis for the enterprise in business decisions such as cooperating with suppliers and assessing cooperation risks.

[0104] Furthermore, the electronic certificate may not exist in the certificate change database. Therefore, in order to ensure the authenticity of the electronic certificate, it is necessary to analyze the characteristics of the electronic certificate that does not exist in the certificate change database.

[0105] S4. When the electronic certificate does not exist in the certificate change database, determine the invalidation factor and change factor of the electronic certificate according to the certificate characteristics of the electronic certificate, and generate a change strategy for the electronic certificate according to the invalidation factor and the change factor.

[0106] In the embodiment of the present invention, the unique certificate identifier of the electronic certificate is matched one by one with the certificate identifiers in the certificate change database. When no certificate identifier is matched, it means that the electronic certificate does not exist in the certificate change database, indicating that the electronic certificate at this time has not been uploaded to the certificate database and is a new electronic certificate. Therefore, it is necessary to identify the certificate characteristics of the certificate to ensure the authenticity of the electronic certificate.

[0107] In the embodiment of the present invention, the certificate characteristics refer to various characteristics and information that the electronic certificate has and can reflect its type, content, attributes, and differences from other certificates, including but not limited to text content characteristics (such as the specific expressions and characteristics of information such as enterprise name, business scope, registered capital, etc.), image characteristics (such as the style, color, position of the seal, the quality and characteristics of the certificate photo, etc.), format characteristics (such as file format, page layout, font size, etc.), and business attribute characteristics related to the certificate (such as the industry to which it belongs, qualification level, validity period, etc.).

[0108] In the embodiment of the present invention, before identifying the certificate characteristics of the electronic certificate, it further includes:

[0109] Construct a certificate characteristic decision tree according to the pre-acquired historical electronic certificates;

[0110] Identify the certificate area of the electronic certificate and identify the certificate type corresponding to the certificate area;

[0111] Classify the certificate type by using the certificate characteristic decision tree to obtain a certificate type branch;

[0112] Determine the certificate characteristics of the electronic certificate through the certificate type branch.

[0113] Specifically, historical electronic license samples include licenses of different industries and types, such as business licenses, tax registration certificates, various qualification certificates, etc. Extracting the license characteristics of historical electronic license samples includes the text content of the license (enterprise name, business scope, registered capital, etc.), image characteristics (seal style, photo clarity, etc.), format attributes (file type, page layout, etc.), and the basic information of the license (license type, issuing agency, issuing time, validity period, etc.), so as to screen out the key characteristics that have a significant impact on distinguishing different license types and characteristics, such as the length of text fields, the occurrence frequency of specific keywords, the color characteristics and shape characteristics of certain areas in the image, etc. Using decision tree algorithms (such as CART algorithm - Classification and Regression Tree algorithm), with the key characteristics as decision nodes, a license characteristic decision tree is constructed. During the construction process, the decision tree determines how to classify electronic licenses under different characteristic conditions through learning historical data. For example, for a business license, the decision tree may judge the industry type and possible business scope characteristics of the business license based on characteristics such as the character length of the company name field and whether the business scope field contains specific industry keywords. For electronic licenses containing image information, image recognition technologies, such as object detection algorithms based on deep learning (such as Faster R-CNN algorithm), are used to analyze the electronic license images, enabling the model to learn the characteristics of different license areas (such as text areas, seal areas, image areas, border areas, etc.). During recognition, the electronic license image to be recognized is input into the trained model, and the model can automatically detect and segment each different license area, and generate corresponding position coordinates and class labels for each area. For example, for a business license image, the model can accurately detect the text area where the company name is located, the image area where the seal is located, and the license border area, etc.

[0114] Specifically, for each identified license area, further analyze its features to determine the corresponding license type. For the text area, use OCR (Optical Character Recognition) technology to convert the text in the image into editable text content, and then extract key information for judgment, so as to determine that the license type corresponding to this area is a business license; for the seal area, determine the license type to which the seal belongs by comparing the features such as the style, pattern, and text of the seal with the known license seal template libraries of various types. After determining the license type of the electronic license, extract the same key features as those when constructing the decision tree from this electronic license. If it is determined to be a business license, extract features such as the character length of the company name field and the keywords in the business scope field, and input the features into the pre-constructed license feature decision tree. The decision tree starts from the root node and makes judgments and branches at each decision node according to the feature values. For example, the first decision node of the decision tree is whether the business scope field contains keywords related to materials. If the business scope field of the electronic license contains keywords such as materials and investment, then enter the corresponding branch; if not, enter another branch. By continuously making judgments and branches at each decision node, finally reach the leaf node. Each leaf node corresponds to a specific license type branch. For example, after a series of judgments at the decision nodes, it is finally determined that this business license belongs to the business license branch of the material service category. Each license type branch accumulates specific license feature information corresponding to it during the decision tree construction process. When the electronic license reaches the corresponding license type branch through decision tree classification, extract the license features related to this electronic license from this branch. For example, in the business license branch of the material service category, features such as the common business scope mode, the registered capital scale range, and specific regulatory requirement identifiers of this type of business license may be recorded. By matching and analyzing with the features in this branch, determine the specific license features of this electronic license.

[0115] Furthermore, by analyzing the license features, failure factors can be identified to determine whether the supplier's electronic license is within the specified validity period, and it is also necessary to determine whether the electronic license has been updated to clarify the supplier's qualifications and business scope.

[0116] In the embodiment of the present invention, the failure factor refers to the quantitative value of the factor that causes the electronic license to lose its original legal effect or validity, and the change factor refers to the quantitative value of the factor for the electronic license to perform a change operation.

[0117] In the embodiment of the present invention, determining the failure factor and change factor of the electronic license according to the license features of the electronic license includes:

[0118] Extract the time factor feature in the license features, and calculate the failure risk index of the electronic license according to the time factor feature:

[0119]

[0120] Wherein, F is the failure risk index, α is the first weight coefficient, β is the second weight coefficient, γ is the third weight coefficient, t1 is the real-time time, t2 is the license issuance time in the time factor characteristics, t3 is the expiration time of the license, T1 is the total expected usage duration of the license, T2 is the duration of the license's prescribed validity period, t4 is the target update time of the license, and T3 is the update frequency duration;

[0121] Determine the failure factor of the electronic license according to the failure risk index, and determine the change urgency index of the electronic license according to the failure factor:

[0122]

[0123] Wherein, C is the change urgency index, δ is the urgency impact weight, t3 is the expiration time of the license, t1 is the real-time time, T4 is the change notification duration, and min is the minimum value function;

[0124] Determine the change factor of the electronic license according to the change urgency index.

[0125] Specifically, the time factor characteristics include the license issuance time t2, the start time of the validity period, the expiration time t3 of the validity period, the most recent update time t4, and the current real-time time t1. Then the time information can be extracted from the metadata or text content of the electronic license. Then t1 - t2 represents the duration from the issuance time to the current time, and t3 - t1 represents the remaining duration from the current time to the expiration time of the validity period, thereby constructing the failure risk index function F

[0126] to quantify the failure possibility of the electronic license based on time factors. Then α, β, and γ are weight coefficients, determined according to the empirical data and expert evaluation of different industries and license types, and α + β + γ = 1. For example, for some industries sensitive to the validity period (such as medical industry licenses), the weight of β may be relatively high; for licenses in fields with rapid technological updates, the weight of γ may be large; T1 is the total expected normal usage duration of this type of license, which can be obtained through statistical analysis of a large amount of historical data or industry standard regulations, T2 is the duration of the license's prescribed validity period, t4 - t1 is the duration from the most recent update time to the current time, and T3 is the recommended update frequency duration according to industry practices or relevant policy regulations. Then when F exceeds a pre-set failure threshold, it can be determined that there is a failure risk for the electronic license, and the failure factor is determined to be 1. If F does not exceed a pre-set failure threshold, then there is no failure risk, and the failure factor is determined to be 0.

[0127] Specifically, once the failure factor is determined, the change factor and the urgency degree of the change are determined by constructing the change urgency index function C. If the failure factor is mainly due to the approaching expiration date (i.e., t3 - t1 is short), then the change urgency index is constructed. Here, δ is the weight coefficient, reflecting the influence degree of this failure factor on the change urgency, which is determined through the analysis of similar failure cases and expert opinions. T4 is the minimum advance notice duration required to initiate the change process before the license expires, which is determined according to industry regulations or actual operation experience. When C exceeds a set change threshold, it is determined that a license change is required, and the urgency degree of the change can be determined according to the value of C. Then the change factor is determined to be 1. If C does not exceed a set change threshold, the change factor is determined to be 0.

[0128] Furthermore, based on the failure factor and the change factor, the latest electronic license of the target supplier can be determined, so as to analyze the change strategy of the target supplier.

[0129] In the embodiment of the present invention, the change strategy takes into account the failure factor and the change factor of the electronic license, and comprehensively plans and integrates all aspects of the change process, including the change process, required materials, personnel responsibilities, time planning, and measures to handle emergencies, etc.

[0130] In the embodiment of the present invention, the generating of the change strategy for the electronic license according to the failure factor and the change factor includes:

[0131] Generating a change index vector according to the failure factor and the change factor;

[0132] Determining the change process and change materials of the electronic license according to the change index vector;

[0133] Generating the change strategy for the electronic license according to the change process and the change materials.

[0134] Specifically, the value of the failure factor is 0 or 1, and the value of the change factor is 0 or 1. Then the change index vector includes {0, 0}, {0, 1}, {1, 0}, {1, 1}. When the change index vector is {0, 0}, it means that there is no failure risk for the electronic license and no change is required; when the change index vector is {0, 1}, it means that there is no failure risk for the electronic license but a change is required; when the change index vector is {1, 0}, it means that there is a failure risk for the electronic license but no change is required; when the change index vector is {1, 1}, it means that there is a failure risk for the electronic license and a change is required.

[0135] Specifically, the change processes and change materials determined according to different change index vectors are refined and integrated into a complete change strategy. The change strategy covers all aspects of the entire change process, including clarifying the execution order, responsible persons, time nodes of each process step, and countermeasures for possible problems. For example, for the change index vector {1, 1}, the change strategy may stipulate that within the first working day after it is found that the validity period of the business license is approaching and the business scope needs to be changed, the certificate management specialist is responsible for collecting scanned copies of the business license and the legal representative's identity certificate and other materials required for renewal; at the same time, the business department completes the writing of a new business plan within 2 working days, and the marketing department submits a market research report on related businesses within 3 working days. On the 4th working day, the administrative department integrates the renewal application materials and the business scope change application materials and submits the application through the online government service platform. After submission, the certificate management specialist is responsible for tracking the application progress daily. If the materials are returned for supplementation or other problems occur, within half a working day after receiving the notice, cooperate with relevant departments to solve them. The entire change process is expected to be completed within 10 working days to ensure that all change procedures are completed before the business license expires and to ensure that the normal business activities of the enterprise are not affected.

[0136] Furthermore, using the change strategy to dynamically change the electronic certificates can ensure the compliance operation of the enterprise, improve the operation efficiency and enhance the market competitiveness.

[0137] S5. Use the change strategy to dynamically change the electronic certificates, and verify the electronically changed certificates, and determine the qualification information of the target supplier according to the verified electronic certificates.

[0138] In the embodiment of the present invention, according to the arrangement of the change strategy, the change process of the electronic certificates is officially started at an appropriate time node. If the change strategy is for the electronic certificates with an approaching validity period, it is stipulated that the renewal process is started when the remaining validity period is 3 months, the electronic certificates are changed, and the changed electronic certificates are verified to ensure that they can be used normally.

[0139] In the embodiment of the present invention, the verification value is a quantitative index comprehensively evaluating the risk status of the target supplier represented by the electronic certificates in the supply chain dimension.

[0140] In the embodiment of the present invention, the verification of the dynamically changed electronic certificates includes:

[0141] Determine the associated partner identifier of the target supplier according to the dynamically changed electronic certificates;

[0142] Use the following multi-dimensional cross-verification algorithm to calculate the supply chain risk index of the target supplier according to the associated partner identifier:

[0143]

[0144] Among them, S is the supply chain risk index, w i is the cross-weight of the partner in the i-th associated partner identifier, n is the number of associated partner identifiers, A i is the number of times of arrears of material costs of the partner in the i-th associated partner identifier, M i is the number of times of material costs of the partner in the i-th associated partner identifier, B i is the number of times of feedback on product quality problems of the partner in the i-th associated partner identifier, N i is the number of times of material deliveries of the partner in the i-th associated partner identifier;

[0145] Determine the verification value of the electronic certificate according to the supply chain risk index.

[0146] Specifically, the dynamically changed electronic certificate contains a large amount of information of the target supplier. The part related to the supply chain is screened out from it. Through specific information parsing rules and data mining techniques, the information that can uniquely identify these associated partners is extracted, such as the unified social credit code, enterprise name, partner code, etc. These identifiers will be used as the key indexes for subsequent analysis of supply chain risks.

[0147] Specifically, analyze the upstream and downstream partnership relationships of the enterprise in the supply chain. Through data sharing interfaces with suppliers and customers, obtain information such as transaction records, on-time delivery rates, and product quality feedback. For example, if suppliers frequently report that the enterprise has arrears in payment for goods, or customers are dissatisfied with the timeliness and quality of its product deliveries, this will affect the business ability and qualifications reflected in the enterprise's electronic licenses. The cross-weight reflects the relative importance of each partner in the target supplier's supply chain and is determined based on the number of cooperation times. If the number of cooperation times is 3, the cross-weight is 0.3. Assume the target supplier has three associated partners. For the first associated partner, its cross-weight w1 = 0.3, the number of times of arrears in material costs A1 = 3, the number of times of material costs M1 = 10, the number of times of feedback on product quality problems B1 = 2, and the number of times of material deliveries N1 = 15. Then the risk index value corresponding to this associated partner is S1. Similarly, calculate the risk index values of the other two associated partners. Finally, add up the risk index values of the three associated partners to obtain the supply chain risk index S of the target supplier, and convert the calculated supply chain risk index into a verification value. If it is set that the supply chain risk index S is within the range of 0 - 0.3, the verification value is of high credibility (such as set at 90 points, with a full score of 100 points), indicating that the supplier has relatively low risks in the supply chain and the credibility of the electronic license is relatively high; if S is within the range of 0.3 - 0.6, the verification value is of medium credibility (such as 60 points); if S is greater than 0.6, the verification value is of low credibility (such as 30 points). In this way, convert the supply chain risk index into an intuitive verification value, which is convenient for the enterprise to quickly evaluate and make decisions on the supplier qualifications represented by the electronic license.

[0148] Furthermore, the verification value is obtained based on the supply chain risk index and can intuitively reflect the risk status of the supplier in the supply chain dimension. If the verification value shows high credibility, it means that its associated partners perform well in terms of material cost payment and product quality, the supply chain is relatively stable, the supplier has the ability to ensure the supply of raw materials, deliver products on time, etc., and has good operation qualifications.

[0149] In the embodiment of the present invention, the qualification information is an evaluation of the information status of the target supplier, including but not limited to financial status, performance ability, product quality, and relationship with partners.

[0150] In the embodiment of the present invention, the determination of the qualification information of the target supplier according to the verified electronic license includes:

[0151] When the verification value of the verified electronic license is the preset first verification threshold, determine the qualification information as the first-level qualification;

[0152] When the verification value of the verified electronic license is greater than the preset first verification threshold and less than the preset second verification threshold, determine the qualification information as the second-level qualification;

[0153] When the verification value of the verified electronic certificate is the preset second verification threshold, the qualification information is determined as the third-level qualification.

[0154] Specifically, when the verification value is equal to the first verification threshold, the qualification information of the target supplier is determined as the first-level qualification, where the first verification threshold is the numerical value 0, indicating that the target supplier performs excellently in aspects such as supply chain risk, and has reached relatively high standards in various aspects such as material cost payment, product quality feedback, and cooperation with associated partners, and is at a very excellent level, so it is given the highest-level qualification recognition; the second verification threshold is obtained based on the multi-dimensional cross-verification algorithm where there are no delivery problems between associated partners, that is, the second verification threshold is 2nw i , then when the verification value is greater than the first verification threshold and less than the second verification threshold, the qualification information of the target supplier is determined as the second-level qualification, indicating that the performance of the target supplier is at a medium level. Although there may be some minor problems or risks in some aspects, generally it can still meet certain requirements and has certain cooperation value. However, compared with the suppliers with the first-level qualification, there may still be some areas that need improvement and enhancement in aspects such as supply chain management.

[0155] Specifically, when the verification value is equal to the second verification threshold, the qualification information of the target supplier is determined as the third-level qualification, indicating that there are relatively many problems with the target supplier in terms of supply chain risk, such as a relatively large number of times of arrears in material costs and a relatively high number of times of feedback on product quality problems, resulting in a lower qualification level, and enterprises may need to be particularly cautious when cooperating with it.

[0156] Such as Figure 2 shown, is the functional module diagram of the supplier qualification information detection system based on electronic certificates provided by an embodiment of the present invention.

[0157] The supplier qualification information detection system 100 based on electronic certificates of the present invention can be installed in an electronic device. According to the functions achieved, the supplier qualification information detection system 100 based on electronic certificates can include a dynamic monitoring and change module 101, a certificate information matching module 102, a first qualification information determination module 103, a change strategy generation module 104, and a second qualification information determination module 105. The modules of the present invention can also be referred to as units, which refer to a series of computer program segments that can be executed by the processor of an electronic device and can complete fixed functions, and are stored in the memory of the electronic device.

[0158] In this embodiment, the functions of each module / unit are as follows:

[0159] The dynamic monitoring and change module 101 is used to dynamically monitor and change a preset license database within a preset time period to obtain a license change database;

[0160] The license information matching module 102 is used to match the license information in the license change database according to the license collection time of the electronic license of the target supplier;

[0161] The first qualification information determination module 103 is used to identify whether the electronic license exists in the license change database according to the license information. When the electronic license exists in the license change database, determine the qualification information of the target supplier according to the electronic license status in the license change database;

[0162] The change strategy generation module 104 is used to, when the electronic license does not exist in the license change database, determine the invalidation factor and change factor of the electronic license according to the license characteristics of the electronic license, and generate a change strategy for the electronic license according to the invalidation factor and the change factor;

[0163] The second qualification information determination module 105 is used to dynamically change the electronic license by using the change strategy, verify the dynamically changed electronic license, and determine the qualification information of the target supplier according to the verified electronic license.

[0164] Specifically, each module in the supplier qualification information detection system 100 based on electronic licenses in the embodiments of the present invention adopts the same technical means as those Figure 1 in the supplier qualification information detection method based on electronic licenses described above, and can produce the same technical effects, which will not be elaborated here.

[0165] In several embodiments provided by the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the system embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation.

[0166] The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0167] In addition, in each embodiment of the present invention, each functional module can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a hardware plus a software functional module.

[0168] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0169] Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is not limited only by the above description. Therefore, it is intended to cover all changes within the meaning and scope of equivalent elements falling within the protection scope in the present invention.

[0170] The embodiments of the present application can acquire and process relevant data based on artificial intelligence technology. Among them, artificial intelligence (AI) is a theory, method, technology, and application system that uses a digital computer or a machine controlled by a digital computer to simulate, extend, and expand human intelligence, perceive the environment, acquire knowledge, and use knowledge to obtain the best results.

[0171] In addition, obviously, the term "including" does not exclude other units or steps, and the singular does not exclude the plural. The multiple units or systems stated in the system claims can also be implemented by one unit or system through software or hardware. The terms such as first and second are used to represent names and do not represent any specific order.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for detecting supplier qualification information based on electronic licenses and certificates, characterized in that, The method includes: Dynamically monitoring and changing a preset license database within a preset time period to obtain a license change database; Matching the license information in the license change database according to the license collection time of the electronic license of the target supplier; Identifying whether the electronic license exists in the license change database according to the license information. When the electronic license exists in the license change database, determining the qualification information of the target supplier according to the status of the electronic license in the license change database; When the electronic license does not exist in the license change database, determining the invalidation factor and change factor of the electronic license according to the license characteristics of the electronic license, and generating a change strategy for the electronic license according to the invalidation factor and the change factor; Dynamically changing the electronic license by using the change strategy, and verifying the electronically changed license, and determining the qualification information of the target supplier according to the verified electronic license.

2. The method for detecting supplier qualification information based on electronic certificates as claimed in claim 1, wherein The dynamically monitoring and changing a preset license database within a preset time period to obtain a license change database includes: Extracting target field data in the license database through a preset initial change time window; Comparing the initial field data in the license database with the target field data to obtain changed field data; Changing the field attributes in the license database according to the changed field data to obtain a license change database; Updating the initial change time window according to the preset time period, updating the target field data to the initial field data, and returning to the step of extracting the target field data in the license database through the preset initial change time window until the time period reaches the preset time range.

3. The method for detecting supplier qualification information based on electronic certificates as claimed in claim 1, wherein The matching the license information in the license change database according to the license collection time of the electronic license of the target supplier includes: Extracting a set of license change records in the license change database at the license collection time by using the following data screening logical expression: Q = s ∈ S | s_id = target_id ∧ s_time ≥ standardized_time where Q is the set of license change records, S is the set of all license change records, s is any record in the set of license change records, s_id is the supplier identifier in the record, target_id is the target supplier identifier, s_time is the change time in the record, and standardized_time is the license collection time; Determining the license information according to the license field data in the set of license change records.

4. The method for detecting supplier qualification information based on electronic certificates as claimed in claim 1, wherein, Before determining the qualification information of the target supplier according to the status of the electronic license in the license change database, it further includes: Performing multi-field joint positioning on the license fields in the license change database according to the license identifier of the electronic license to obtain electronic license field data; Determining the license composite status of the electronic license according to the electronic license field data; Determining the electronic license status according to the field status value corresponding to the license composite status.

5. The method for detecting supplier qualification information based on electronic certificates as claimed in claim 1, wherein Before determining the expiration factor and change factor of the electronic license according to the license characteristics of the electronic license, it further includes: Classify the license type of the electronic license using a pre-constructed license characteristic decision tree to obtain a license type branch; Determine the license characteristics of the electronic license through the license type branch.

6. The method for detecting supplier qualification information based on electronic licenses according to claim 1, wherein, The determining the expiration factor and change factor of the electronic license according to the license characteristics of the electronic license includes: Calculate the expiration risk index of the electronic license according to the time factor characteristic in the license characteristics: Where F is the expiration risk index, α is the first weight coefficient, β is the second weight coefficient, γ is the third weight coefficient, t1 is the real-time time, t2 is the license issuance time, t3 is the expiration time of the license validity period, T1 is the total expected usage duration of the license, T2 is the duration of the license validity period, t4 is the license update time, and T3 is the update frequency duration; Determine the expiration factor of the electronic license according to the expiration risk index, and determine the change urgency index of the electronic license according to the expiration factor: Where C is the change urgency index, δ is the urgency impact weight, T4 is the change notification duration, and min is the minimum value function; Determine the change factor of the electronic license according to the change urgency index.

7. The method for detecting supplier qualification information based on electronic licenses according to claim 1, wherein The generating the change strategy of the electronic license according to the expiration factor and the change factor includes: Generate a change index vector according to the expiration factor and the change factor; Determine the change process and change materials of the electronic license according to the change index vector; Generate a change strategy of the electronic license according to the change process and the change materials.

8. The method for detecting supplier qualification information based on electronic certificates as described in claim 1, wherein The verifying the electronically licensed certificate after dynamic change includes: Determine the associated partner identifier of the target supplier according to the electronically licensed certificate after dynamic change; Calculate the supply chain risk index of the target supplier according to the associated partner identifier; Among them, S is the supply chain risk index, w i is the cross-weight of the partner in the i-th associated partner identifier, n is the number of associated partner identifiers, A i is the number of times of overdue payment of material costs by the partner in the i-th associated partner identifier, M i is the number of times of material costs by the partner in the i-th associated partner identifier, B i is the number of times of feedback on product quality problems by the partner in the i-th associated partner identifier, N i is the number of material deliveries by the partner in the i-th associated partner identifier; Determine the verification value of the electronically licensed certificate according to the supply chain risk index.

9. The method for detecting supplier qualification information based on electronic certificates as described in claim 1, wherein The determining the qualification information of the target supplier according to the verified electronically licensed certificate includes: When the verification value of the verified electronically licensed certificate is a preset first verification threshold, determine the qualification information as the first-level qualification; When the verification value of the verified electronically licensed certificate is greater than the preset first verification threshold and less than the preset second verification threshold, determine the qualification information as the second-level qualification; When the verification value of the verified electronically licensed certificate is the preset second verification threshold, determine the qualification information as the third-level qualification.

10. A supplier qualification information detection system based on electronic certificates, characterized in that For implementing the method for detecting supplier qualification information based on electronically licensed certificates according to any one of claims 1-9, the system includes: A dynamic monitoring and change module for dynamically monitoring and changing a preset license database within a preset time period to obtain a license change database; A license information matching module for matching the license information in the license change database according to the license collection time of the electronically licensed certificate of the target supplier; A first qualification information determination module for identifying whether the electronically licensed certificate exists in the license change database according to the license information, and when the electronically licensed certificate exists in the license change database, determining the qualification information of the target supplier according to the status of the electronically licensed certificate in the license change database; A change strategy generation module, configured to, when the electronic certificate is not present in the certificate change database, determine a failure factor and a change factor of the electronic certificate according to the certificate characteristics of the electronic certificate, and generate a change strategy for the electronic certificate according to the failure factor and the change factor; A second qualification information determination module, configured to dynamically change the electronic certificate by using the change strategy, verify the electronically changed certificate, and determine the qualification information of the target supplier according to the verified electronic certificate.

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