WO2020233255A1 - 一种基于通用数据模型的多中心医疗数据结构标准化系统 - Google Patents
一种基于通用数据模型的多中心医疗数据结构标准化系统 Download PDFInfo
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- WO2020233255A1 WO2020233255A1 PCT/CN2020/083585 CN2020083585W WO2020233255A1 WO 2020233255 A1 WO2020233255 A1 WO 2020233255A1 CN 2020083585 W CN2020083585 W CN 2020083585W WO 2020233255 A1 WO2020233255 A1 WO 2020233255A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/214—Database migration support
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
Definitions
- the invention belongs to the field of data structure standardization, and in particular relates to a multi-center medical data structure standardization system based on a general data model.
- HIS hospital information system
- EMR electronic medical record system
- PES image acquisition and transmission system
- LIS laboratory inspection information system
- Many hospitals with a high degree of information technology have also established clinical data centers (CDRs), which have realized the centralization of hospital-wide business data and facilitated hospital management, patient services, and clinical scientific research.
- CDRs clinical data centers
- the data structure within the hospital is very heterogeneous, and data sharing between hospitals cannot be realized, making it difficult to carry out clinical research based on multiple centers. Therefore, a data structure standardization method is needed to map medical data of different hospitals to the same general data model.
- Data structure mapping processing requires frequent database queries.
- Existing technical solutions directly operate the source database, increasing the operating pressure of the source server and affecting normal business activities.
- mapping relationship design work independently, and non-technical personnel with medical background are required to cooperate.
- mapping relationship design methods are not intuitive enough, are not friendly to non-technical personnel, and are not conducive to good communication and cooperation between technical and non-technical personnel.
- the existing technical solution does not provide an incremental update solution, or provides an incremental update function, but all data needs to be re-mapped to the data structure during the update, which is inefficient.
- the purpose of the present invention is to provide a multi-center medical data structure standardization system based on a common data model in view of the deficiencies of the prior art.
- a multi-center medical data structure standardization system based on a general data model, the system includes a source database, a cache database, a target database, a data connection management module, a data structure scanning module, Mapping building unit, mapping execution unit, incremental update unit and quality control unit;
- the source database is a database for each medical data center to execute medical business processes; the cache database and the target database are both deployed in the dedicated front-end server of each medical data center;
- the cache database is used to store the original data of the source database of the medical data center, as a cache layer to isolate the data structure mapping process from the source database;
- the target database stores medical data conforming to the data structure of the general data model obtained after data structure mapping by the medical data center to which it belongs through data structure mapping relationships and cached data;
- the target database of each medical data center is connected to the cloud server to realize the collaborative analysis between multi-center medical data;
- the data connection management module is used to manage information required for database access, and provide support for accessing the source database, the cache database and the target database;
- the data structure scanning module is used to scan the data structure of the source database and the target database, and return data structure information and field statistical information reports;
- the mapping construction unit includes a mapping relationship generation and design module and a mapping code generation and revision module; the mapping relationship generation and design module generates an initial data structure mapping relationship, and displays a visualization page for the user to confirm the data structure mapping relationship, and confirm After completion, the data structure mapping script is generated by the mapping code generation and revision module;
- the mapping execution unit includes a data cache module and a mapping processing module;
- the data cache module migrates the data required for data structure mapping from the source database to the cache database to establish a cache layer, isolates the data structure mapping process from the source database, and avoids normality Business;
- the mapping processing module after the user confirms the data structure mapping script generated by the mapping construction unit, extracts the data from the cache database, executes the data structure mapping and imports it into the target database;
- the quality control unit includes an abnormality processing module, and the abnormality processing module is used to record abnormal information during the processing of the mapping processing module;
- the incremental update unit includes an incremental cache module and an incremental mapping module.
- the incremental cache module is used for capturing data changes in the source database and updating incremental data in the cache layer; the incremental mapping module is used for Perform data structure standardized mapping on incrementally updated data, extract the data from the cache database, perform data structure mapping and import it into the target database.
- the support of the data connection management module for accessing the database includes: reading the connection information configuration file, loading the corresponding database connection driver according to the database type configuration information, and connecting to the database according to the ip, account, and password information.
- the data structure information includes table name, field name, and field type; the field statistical information includes the number of field rows, the maximum length of the field, the value range of the field, and the value of each field. Frequency and proportion; data structure information provides support for the establishment of structural mapping relationships; field statistical information provides support for mapping performance optimization; this module uses structured query language to query tables one by one, and summarize the query results into a report.
- mapping relationship generation and design module after obtaining the scanned data structure of the source database and the target database, perform fuzzy matching on the field names according to the preset synonyms dictionary, generate the initial data structure mapping relationship, and display
- the visualization page allows users to complete the confirmation of the data structure mapping relationship;
- the visualization specifically includes: using a directional graph to reflect the one-to-one relationship, one-to-many relationship, and multi-pair relationship between tables and fields A relationship;
- the mapping relationship generation and design module supports text annotation and design document export.
- mapping code generation and revision module generates and saves a data structure mapping script according to the code framework according to the data structure mapping relationship confirmed by the user, and provides the user with the authority to modify the data structure mapping script.
- the cache layer established by the data cache module adds a modification time field to the source data structure to record the most recent modification time of each piece of data; the mapping processing module applies the mapping script to the cache layer to perform data Standardized structure mapping, data structure mapping results are saved to the target database, and the latest mapping operation time is recorded in the log.
- exception processing module When extracting data according to the data structure mapping relationship, errors including "Null value in non-empty field” and “data length out of range” occur when extracting data, reject the structure mapping of these data and change These errors are recorded in the log, and the error data is recorded in the temporary table, waiting for the user to confirm deletion or cleaning.
- the incremental cache module captures data changes in the source database through CDC technology, updates the incremental data in the cache layer, and records the modification time in the modification time field.
- the incremental mapping module compares the latest mapping operation time in the log with the modification time of the data in the cache layer, and maps the data whose modification time is later than the most recent mapping operation time; first, the increment in the cache database Scan the data structure and target database structure. If the mapping relationship between the data structure and the existing data structure in the cache database is the same, perform data structure mapping processing and quality control; if the mapping relationship does not match the existing data structure, update the data structure mapping After the relationship, data structure mapping and quality control are performed.
- the quality control unit further includes a quality evaluation module configured to form a quality evaluation report for the current data structure mapping processing after the mapping processing of the mapping processing module is completed.
- the present invention improves the medical data structure mapping relationship design process, facilitates the collaboration between information technicians and medical staff, and improves work efficiency, as follows:
- an automated data structure mapping script can be generated based on the design of the above-mentioned visual data structure mapping relationship, and the user can modify the script to ensure the accuracy of the script.
- the aforementioned data structure mapping script can be reused during subsequent incremental updates of the corresponding source structure and target structure. If the source structure or target structure changes, the data structure mapping is modified and updated based on the old data structure mapping relationship The record of the relationship.
- the present invention provides a multi-center medical data structure standardization system based on a universal data model.
- the system includes a source database, a cache database, a target database, a data connection management module, a data structure scanning module, and a mapping construction unit. , Mapping execution unit, incremental update unit and quality control unit;
- the source database is the database for each medical data center to execute the medical business process, including HIS, LIS, PACS, EMR system databases; the cache database and the target database are deployed in the dedicated front server of each medical data center;
- the cache database is used to store the original data of the source database of the medical data center, as a cache layer to isolate the data structure mapping process from the source database, to avoid affecting the normal business of the medical data center;
- the target database stores the medical data conforming to the data structure of the general data model obtained after data structure mapping by the medical data center to which it belongs through data structure mapping and cached data;
- the target database of each medical data center is connected to the cloud server to realize the collaborative analysis between multi-center medical data;
- the data connection management module is used to manage (including loading, modifying, and storing) information required for database access, and to provide support for accessing the source database, cache database and target database;
- the data structure scanning module is used to scan the data structure of the source database and the target database, and return data structure information and field statistical information reports;
- the mapping building unit includes a mapping relationship generation and design module and a mapping code generation and revision module; the mapping relationship generation and design module generates the initial data structure mapping relationship, and displays the visualization page for users to complete the confirmation of the data structure mapping relationship. After the confirmation is completed, the mapping Code generation and revision module generates data structure mapping script;
- the mapping execution unit includes a data cache module and a mapping processing module;
- the data cache module migrates the data required for data structure mapping from the source database to the cache database to establish a cache layer, isolates the data structure mapping processing from the source database, and avoids affecting normal business; mapping processing After the user confirms the data structure mapping script generated by the mapping construction unit, the module extracts the data from the cache database, executes the data structure mapping and imports it into the target database;
- the quality control unit includes an exception handling module, and the exception handling module is used to record abnormal information during the processing of the mapping processing module;
- the incremental update unit includes an incremental cache module and an incremental mapping module.
- the incremental cache module is used to capture data changes in the source database and update the incremental data in the cache layer; the incremental mapping module is used to update the incremental data Perform data structure standardization mapping, extract data from the cache database, perform data structure mapping and import it into the target database.
- the data flow path is shown in Figure 2.
- the mapping code generation and revision module generates the mapping script;
- the mapping processing module converts the data Extract from the cache database, perform structure mapping and import it into the target database, and record the exceptions in the processing process to the exception processing module log; after the mapping processing is completed, a quality evaluation report for the current data structure mapping operation is formed.
- the cache database and the target database can be physically the same database system.
- Implementation methods include, but are not limited to, reading the connection information configuration file, loading the corresponding database connection driver according to the database type configuration information, and connecting to the database according to the ip, account, and password information.
- the data structure information includes table name, field name, field type; field statistics include but not limited to the number of field rows, the maximum length of the field, the value range of the field, the frequency and proportion of each value of the field; data
- the structure information provides support for establishing the structure mapping relationship; the field statistics information provides support for the optimization of the mapping performance.
- This module uses structured query language to query tables one by one, and summarize the query results into a report, see Table 1, Table 2.
- the data structure scanning module helps operators understand the data structure and data distribution, and improve work efficiency.
- mapping relationship generation and design module supports text annotation and design document export for traceability.
- the mapping relationship generation and design module visually displays the data structure mapping relationship, which is convenient for technical personnel and non-technical personnel to communicate. Support the export of multiple versions of data structure mapping documents, and trace the history of data structure mapping relationships.
- the data structure mapping script is generated and saved according to the code framework, reducing the workload, making the code more standardized, and providing users with the authority to modify the data structure mapping script.
- the semi-automatic data structure mapping processing of the mapping code generation and revision module improves work efficiency.
- the cache layer established by the data cache module adds a modification time field to the source data structure to record the most recent modification time of each piece of data.
- the mapping processing module applies the mapping script to the cache layer, performs standardized mapping of the data structure, saves the result of the data structure mapping to the target database, and records the latest mapping operation time in the log.
- the quality control unit also includes a quality evaluation module, which is used to form a quality evaluation report for the current data structure mapping processing after the mapping processing module is completed.
- the quality evaluation report content is shown in Table 4.
- the incremental cache module captures data changes in the source database through CDC (CDC: change data capture technology, which can obtain data operation and time information from the database log), updates the incremental data in the cache layer, and changes the time Record the modification (insertion or update) time in the field.
- CDC change data capture technology, which can obtain data operation and time information from the database log
- updates the incremental data in the cache layer and changes the time Record the modification (insertion or update) time in the field.
- the incremental mapping module compares the latest mapping operation time in the log with the modification time of the data in the cache layer, and maps the data whose modification time is later than the latest mapping operation time; first, the incremental data structure in the cache database and the target database are mapped The structure is scanned. If the mapping relationship is the same as the existing data structure in the cache database, the data structure mapping process and quality control are performed; if the mapping relationship is not consistent with the existing data structure mapping relationship, the data structure mapping relationship is updated before the data Structure mapping processing and quality control.
- the materialized view is similar to the view, but the entity storage is established. Some databases will create materialized view logs for the materialized view source tables to record data changes, which can be used as a basis for incremental updates.
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Abstract
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Claims (10)
- 一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,该系统包括源数据库、缓存数据库、目标数据库、数据连接管理模块、数据结构扫描模块、映射构建单元、映射执行单元、增量更新单元和质量控制单元;所述源数据库为各医疗数据中心执行医疗业务流程的数据库;所述缓存数据库与目标数据库均部署于各医疗数据中心的专属前置服务器;所述缓存数据库用于存储该医疗数据中心源数据库的原始数据,作为缓存层将数据结构映射处理与源数据库隔离;所述目标数据库存储所属医疗数据中心通过数据结构映射关系及缓存数据进行数据结构映射后得到的符合通用数据模型数据结构的医疗数据;各医疗数据中心的目标数据库均与云端服务器连接,实现多中心医疗数据之间的协同分析;所述数据连接管理模块用于管理数据库访问所需信息,对访问源数据库、缓存数据库和目标数据库提供支持;所述数据结构扫描模块用于对源数据库和目标数据库的数据结构进行扫描,返回数据结构信息及字段统计信息报表;所述映射构建单元包括映射关系生成与设计模块和映射代码生成与修订模块;所述映射关系生成与设计模块生成初始数据结构映射关系,并展示可视化页面供用户完成数据结构映射关系的确认,确认完成之后由映射代码生成与修订模块生成数据结构映射脚本;所述映射执行单元包括数据缓存模块和映射处理模块;所述数据缓存模块将数据结构映射所需数据由源数据库迁移至缓存数据库建立缓存层,将数据结构映射处理与源数据库隔离,避免影响正常业务;所述映射处理模块在用户确认映射构建单元生成的数据结构映射脚本后,将数据从缓存数据库提取,执行数据结构映射并导入目标数据库;所述质量控制单元包括异常处理模块,所述异常处理模块用于记录映射处理模块处理过程中的异常信息;所述增量更新单元包括增量缓存模块和增量映射模块,所述增量缓存模块用于捕获源数据库中的数据变化,在缓存层中更新增量数据;所述增量映射模块用于对增量更新的数据进行数据结构标准化映射,将数据从缓存数据库提取,执行数据结构映射并导入目标数据库。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述数据连接管理模块对访问数据库的支持包括:读取连接信息配置文件,根据数据库类型配置信息加载相应的数据库连接驱动,根据ip、账号、密码信息连接至数据库。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述数据结构扫描模块中,所述数据结构信息包括表名、字段名、字段类型;所述字段统计信息包括字段行数、字段最大长度、字段取值范围、字段各取值的频数及占比;数据结构信息为建立结构映射关系提供支持;字段统计信息为映射性能优化提供支持;该模块利用结构化查询语言逐一对表进行查询,将查询结果汇总形成报表。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述映射关系生成与设计模块:在得到扫描后的源数据库和目标数据库的数据结构后,根据预设的近义词字典,对字段名进行模糊匹配,生成初始数据结构映射关系,并展示可视化页面供用户完成数据结构映射关系的确认;所述可视化具体为:利用带有指向性的图形,反映表与表之间,字段与字段之间一对一关系、一对多关系、多对一关系;所述映射关系生成与设计模块支持文本注释及设计文档导出。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述映射代码生成与修订模块:根据用户确认后的数据结构映射关系,按照代码框架生成数据结构映射脚本并保存,同时向用户提供修改数据结构映射脚本的权限。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述数据缓存模块建立的缓存层在源数据结构的基础上添加修改时间字段,用以记录每条数据的最近修改时间;所述映射处理模块将映射脚本应用于缓存层,进行数据结构标准化映射,数据结构映射结果保存至目标数据库,并在日志中记录最近映射操作时间。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述异常处理模块:当根据数据结构映射关系提取数据时出现包括 “非空字段存在空值”,“数据长度超出范围”在内的错误时,拒绝这些数据的结构映射,并将这些错误记录到日志,错误数据记录至临时表,待用户确认删除或清洗处理。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述增量缓存模块通过CDC技术捕获源数据库中的数据变化,在缓存层中更新增量数据,并在修改时间字段中记录修改时间。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述增量映射模块将日志中的最近映射操作时间与缓存层中数据的修改时间进行对比,对修改时间晚于最近映射操作时间的数据进行映射;首先对缓存数据库中的增量数据结构和目标数据库结构进行扫描,若与存在于缓存数据库中的已有数据结构映射关系相同,则进行数据结构映射处理和质量控制;若与已有数据结构映射关系不符,则更新数据结构映射关系之后再进行数据结构映射处理和质量控制。
- 根据权利要求1所述的一种基于通用数据模型的多中心医疗数据结构标准化系统,其特征在于,所述质量控制单元还包括质量评估模块,所述质量评估模块用于在映射处理模块映射处理完成后形成一份针对当次数据结构映射处理的质量评估报告。
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| CN110347662A (zh) | 2019-10-18 |
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| JP7074307B2 (ja) | 2022-05-24 |
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