KR102562365B1 - Blockchain-based personal health record analysis platform service provision method, device and system - Google Patents

Abstract

A system providing a blockchain-based medical data analysis platform may include a processor and memory. When receiving personal health record (PHR) data from a user terminal using a blockchain server, the processor provides a reward to the user terminal, deletes information related to personal privacy from the received personal health record data, De-identified data is created using body data related to gender, age, disease status, and disease status, and when a specific amount and data transmission request is received from the terminal of a data analysis company using a blockchain server, de-identification is made. The converted data can be transmitted to the terminal of the data analysis company.

Description

Blockchain-based personal health record analysis platform service providing method, device and system

This document is about a platform service that analyzes data related to personal health records based on blockchain and provides them to users.

Recently, patients with various diseases are rapidly increasing, and in relation to this, personal health records including medical information of patients have relatively large information asymmetry between providers (eg, medical institutions, etc.) and consumers (eg, patients, etc.). can do. In particular, it can be said that patients do not have the sovereignty over their own medical information and use it, and are passively providing information at the request of individual medical institutions.

In this regard, it can be seen that personal health records are sensitive personal information, and various political or social restrictions exist in the integrated management and utilization of information. In other words, there is a problem in that there is no system or system capable of utilizing a patient-centered personal health record by interconnecting information held by each medical institution under the consent of a patient only when information sharing is required.

As people's interest in health care increases, interest and demand for medical IT services such as medical data platforms are increasing. Accordingly, related companies are continuously conducting research to strengthen data and patient privacy.

Patent Publication No. 10-2010-0097524 (2010.09.03.) Registered Patent Publication No. 10-1200814 (2012.11.13.)

Hacking incidents of medical information occur frequently, and the anxiety of users who use the service is amplifying. For this reason, individuals do not want to provide their own health record data to the server, which makes it difficult to conduct research related to health records due to lack of data.

The purpose of the system according to this document is to motivate users to provide data by providing rewards to users who provide their health record data, and to provide platform services so that personal privacy is not exposed by de-identifying user data. have

A system providing a blockchain-based medical data analysis platform may include a processor and memory. When receiving personal health record (PHR) data from a user terminal using a blockchain server, the processor provides a reward to the user terminal, deletes information related to personal privacy from the received personal health record data, De-identified data is created using body data related to gender, age, disease status, and disease status, and when a specific amount and data transmission request is received from the terminal of a data analysis company using a blockchain server, de-identification is made. The converted data can be transmitted to the terminal of the data analysis company.

The system according to this document can motivate users to provide data by providing rewards to users who provide their health record data, and provide platform services so that personal privacy is not exposed by de-identifying user data. there is.

1 shows the configuration of a system that provides a blockchain-based personal health record (PHR) analysis platform service according to an embodiment.
2 is a hardware block diagram of a system, according to one embodiment.
3 is a diagram for explaining a mobile blockchain system according to an embodiment.
4 is an operational flowchart illustrating a relationship between a system, a block chain, and an external device, according to an embodiment.
5 is a flowchart illustrating a method of providing a blockchain-based personal health record (PHR) analysis platform service according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes can be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents or substitutes to the embodiments are included within the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only, and may be modified and implemented in various forms. Therefore, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various components, such terms should only be construed for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle.

Terms used in the examples are used only for descriptive purposes and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description will be omitted.

The embodiments may be implemented in various types of products such as personal computers, laptop computers, tablet computers, smart phones, televisions, smart home appliances, intelligent vehicles, kiosks, and wearable devices.

1 shows the configuration of a system that provides a blockchain-based personal health record (PHR) analysis platform service according to an embodiment.

The system 101 according to an embodiment may include a processor 120 and a memory 130, and some of the illustrated components may be omitted or replaced. System 101 according to an embodiment may be a server or a terminal. According to one embodiment, the processor 120 is a component capable of performing calculations or data processing related to control and/or communication of each component of the system 101, and may include one or more processors. The memory 130 may store information related to the above-described method or a program in which the above-described method is implemented. Memory 130 may be volatile memory or non-volatile memory. The memory 130 may store various file data, and the stored file data may be updated according to the operation of the processor 120 .

According to one embodiment, the processor 120 may execute a program and control the device 101 . Program codes executed by the processor 120 may be stored in the memory 130 . Operations of the processor 120 may be performed by loading instructions stored in the memory 130 . The system 101 may be connected to an external device (eg, a personal computer or network) through an input/output device (not shown) and exchange data.

According to one embodiment, the processor 120 will not be limited in the calculation and data processing functions that can be implemented on the system 101, but hereinafter, the function of providing a blockchain-based PHR data analysis platform service will be described.

2 is a hardware block diagram of a system, according to one embodiment.

Referring to FIG. 2 , a system 101 (eg, the system 101 of FIG. 1 ) according to an embodiment includes a display 210 (eg, the display device 160 of FIG. 1 ), a communication circuit 220 ( Example: may include the communication module 190 of FIG. 1), a memory 230 (eg, the memory 130 of FIG. 1 and a processor 240 (eg, the processor 120 of FIG. 1), FIG. 1 Some of the components of may be added.

According to one embodiment, system 101 may further include a block chain management module 245 . The block chain management module 245 may be driven by block chain management software (SW) (eg, block chain keystore).

The display 210 may output information related to the blockchain network under the control of the processor 240 . The display 210 may output data processed by the normal OS and data processed by the secure OS under the control of the processor 240 . The communication circuit 220 may transmit and receive data based on a block chain network.

According to one embodiment, the communication circuit 220 may transmit the smart contract to the blockchain network under the control of the processor 240 . The smart contract transmitted to the block chain is synchronized with all nodes in the block chain, so that the contents of the smart contract can be disclosed to all nodes in the block chain. A smart contract is an automated contract technology based on a block chain, and may refer to a computer transaction protocol that executes contract conditions. For example, a smart contract may refer to a digital contract method in which contract conditions are coded based on block chain technology and the contents of the contract are fulfilled when the conditions are met.

According to one embodiment, the communication circuit 220 receives block chain data (eg, messages) when accessing a block chain network, or blocks data (eg, electronically signed messages) signed with a private key stored in the system 101. can be transmitted over the chain network.

The memory 230 may store information related to the block chain. For example, the memory 230 may store at least one of a distributed application accessible through a blockchain network, a cryptocurrency wallet application, a blockchain security application, and a secure user interface application. For example, distributed applications and cryptocurrency wallet applications operate in a rich execution environment (REE), whereas blockchain security applications and secure user interface applications may operate in a trusted execution environment (TEE). When operating in a secure OS, stored data can be stored in an encrypted state. The system 101 may include a separate secure storage area (eg, embedded secure element (eSE), embedded subscriber identity module (eSIM)) for block chain management in the memory 230 .

According to one embodiment, the memory 230 may store block chain management software (SW). The blockchain management software can be software (e.g., an android package kit (APK) file) applied to a portable device such as a smartphone. Blockchain management software may be embedded or installed in system 101. Alternatively, the block chain management software may be downloaded from a server through an app store and installed in the system 101.

The processor 240 may perform operations or data processing related to control and/or communication of each component of the system 101 . The processor 240 may include at least some of the components and/or functions of the processor 120 of FIG. 1 . The processor 240 may control the operation of the block chain management module 245 based on block chain management software.

According to one embodiment, the processor 240 can be operated separately as a general OS and a secure OS. A resource area operated when the processor 240 is driven by a general OS may be understood as a general area, and a resource area operated when the processor 240 is driven by a secure OS may be understood as a security area.

According to an embodiment, the processor 240 may control at least one of a block chain management software, a cryptocurrency application, and a distributed application to perform access, approval, and transaction operations of a block chain network.

According to one embodiment, the block chain management module 245 may operate by block chain management software under the control of the processor 240 . The block chain management module 245 may process data of a block chain security application and a secure user interface application operating in a secure OS in conjunction with a block chain network related application. The block chain management module 245 may be understood in the same sense as block chain management software.

3 is a diagram for explaining a mobile blockchain system according to an embodiment.

Referring to FIG. 3, according to an embodiment, a system (eg, system 101 of FIG. 1) in a mobile blockchain network communicates with at least one external electronic device through a communication circuit (eg, communication circuit 220 of FIG. 2). A device and a blockchain network may be formed The system 101 may transmit/receive data with at least one external electronic device included in the blockchain network, and may participate in a transaction agreement in the blockchain network.

According to one embodiment, a mobile blockchain network may be composed of a plurality of electronic devices 301 , 302 , 303 , and 304 .

The plurality of electronic devices 301, 302, 303, and 304 include a plurality of mobile nodes (or participating nodes) participating in blockchain service (eg, 301, 302, 303) and a relay node (or server node) (eg, 304) connecting each mobile node. can do. Mobile nodes (eg, 301, 302, and 303) may be portable electronic devices (eg, mobile phones, tablet PCs, or laptops). A relay node (eg 304) may be a server device.

According to an embodiment, the mobile nodes 301 , 302 , 303 and the relay node 304 included in the blockchain network may store (or possess) a full ledger or a partial ledger, respectively.

According to one embodiment, the relay node 304 (or an electronic device serving as a relay) may be configured to participate in the execution of all transactions. The relay node 304 may record all blocks and consensus on all transactions in the blockchain network. The relay node 304 may participate in consensus on all transactions and store block and state data of all transactions in the blockchain network. The relay node 304 may store the entire ledger, which is a distributed ledger of a blockchain network.

According to an embodiment, the relay node 304 may transmit a wakeup signal (eg, wake up signal, push message) to a mobile node (eg, 301, 302 or 303) that is in an inactive state (eg, idle/sleep state). . The mobile node (eg, 301, 302 or 303) can switch to an active state (eg, running state) in response to receiving a wake-up signal from the relay node 304, connect to a blockchain network, and participate in a blockchain network service. . The mobile node (eg, 301, 302 or 303) may receive the wakeup signal and transmit a response signal to the wakeup signal to the relay node 304. When the relay node 304 receives a response signal from a mobile node (eg, 301, 302 or 303) participating in the transaction, it may relay the transaction creation and consensus operation between nodes.

According to an embodiment, a mobile node (or electronic devices used as mobile nodes) (eg, 301, 302 or 303) may generate a transaction and record a block related to each electronic device.

According to an embodiment, mobile nodes (eg, 301, 302 or 303) may be configured to participate only in the execution of transactions related to each electronic device. For example, a mobile node (e.g. 301, 302 or 303) can participate in transaction consensus involving a user (or user device) among the entire ledger of the blockchain network, and store only the block and state data (e.g. partial ledger) of the transaction. there is. A mobile node (eg, 301, 302 or 303) may store a partial ledger related to each electronic device among distributed ledgers of a blockchain network.

According to an embodiment, a mobile node (eg, 301, 302 or 303) executes a smart contract based on state data, and determines whether to execute a transaction based on the result of an agreement process performed between other mobile nodes and each other. can For example, mobile nodes (eg, 301, 302 or 303) may determine that the agreement is successful when the result values generated by executing the smart contract match.

According to an embodiment, some of the mobile nodes participating in the blockchain network (eg, 301 or 302) may store (or own) a partial ledger of the distributed ledger of the blockchain network. A mobile node (e.g., 301 or 302) that stores the partial ledger may be a node requesting transaction creation in a blockchain network, and may be a node performing a consensus operation on a transaction according to a transaction creation request.

4 is an operational flowchart illustrating a relationship between a system, a block chain, and an external device, according to an embodiment.

Referring to the operation flowchart 400, the electronic device 410 (eg, the electronic device 101 of FIG. 1) may transmit a smart contract for the transmission of shared data to the blockchain 420, and the external device 430 ) (e.g., a server of a company providing a service) can request the provision of personal information to the blockchain 420 (or blockchain network) and receive shared data from the blockchain 420 based on a smart contract. there is.

According to an embodiment, the electronic device 410 may create a smart contract in operation 401 . The smart contract may be, for example, a contract for personal information transaction between the user of the electronic device 410 and the external device 430 . An external user means a user of an external device. The external device may include information about the external user, and an operation performed by the external device may be recognized as an operation performed by the external user. The smart contract may include information about the shared data of the electronic device and an external user to whom the shared data is to be provided.

According to an embodiment, a processor of the electronic device 410 (eg, the processor 240 of FIG. 2 ) may generate a smart contract related to transmission of shared data. A smart contract related to transmission of shared data may include, for example, information about data to be provided to external users and information about external users to provide personal information. Contents included in the smart contract may be set by the user of the electronic device 410 . The processor 240 may control the display 230 to output a setting screen for setting shared data to be provided to external users and external users to be provided with the shared data.

In operation 403 , the electronic device 410 may transmit the smart contract to the blockchain 420 .

At operation 405 , the transmitted smart contract may be synchronized on the blockchain 420 . The smart contract synchronized to the blockchain 420 is open to all users (eg, multiple nodes) within the blockchain 420 and stored in a distributed manner. In the case of a transaction through a smart contract based on the block chain 420, the transparency of the transaction can be increased, and the stability against forgery/falsification can be increased.

In operation 407, the external device 430 may request the blockchain 420 to provide data. The external device 430 may request desired data through a query, for example. A query may mean a request from a specific subject (eg, the external device 430) to show specific data to the database. In operation 409 , the blockchain 420 may execute a smart contract based on the data provision request of the external device 430 . When the block chain 420 receives a query request for personal information from the external device 430, a smart contract synchronized with the block chain 420 may be executed. When a smart contract synchronized with the blockchain 420 is executed, the blockchain 420 may transmit a data provision request to the electronic device 410 in response to the execution of the smart contract. In operation 411, the blockchain ( 420) may transmit a data provision request according to the execution of the smart contract to the electronic device 410. The blockchain 420 according to an embodiment may check whether the data requested by the external device 430 meets the data provision conditions on the smart contract. If the personal information requested by the external device 430 meets the information provision conditions in the smart contract, the block chain 420 may transmit a data provision request to the electronic device 410, which is a party to the smart contract. If the personal information requested by the external device 430 does not meet the data provision conditions on the smart contract, the blockchain 420 may not execute the smart contract. When the smart contract is not executed, the block chain 420 may not transmit the data provision request to the electronic device 410 .

In operation 413, the electronic device 410 may check whether the data provision request of the external device 430 meets the data provision conditions included in the smart contract. For example, the electronic device 410 determines whether the external user of the external device 430 that has requested the data corresponds to the external user to whom data included in the smart contract is to be provided and whether the data requested by the external device 430 is the smart contract. You can check whether it is included in the category of information that can be provided to external users included in the contract.

In one embodiment, when the data requested by the external device 430 meets the data provision conditions on the smart contract, the electronic device 410 may process the information to meet the information de-identification level on the smart contract. The method of processing the data may be, for example, pseudonymization, aggregation, data reduction, data suppression, data masking or differential privacy. It may be a method of de-identifying data using at least one of the methods.

In operation 417, the electronic device 410 may transmit the processed information to the blockchain 420. A method for transmitting to the blockchain 420 may be, for example, a method for the electronic device 410 to perform a transaction. A smart contract transmitted to the blockchain 420 may be executed through a transaction performed by the electronic device 410 .

In operation 419, the blockchain 420 may execute a smart contract in response to receiving the processed information from the electronic device 410. A transaction performed by the electronic device 410 may execute a smart contract on the blockchain 420 .

In operation 421, the block chain 420 may deliver processed data to the external device 430 in response to the execution of the smart contract.

5 is a flowchart illustrating a method of providing a blockchain-based personal health record (PHR) analysis platform service according to an embodiment.

Although process steps, method steps, algorithms, etc. are described in a sequential order in the flowchart of FIG. 5, such processes, methods and algorithms may be configured to operate in any suitable order. In other words, the steps of the processes, methods and algorithms described in the various embodiments of the invention need not be performed in the order described herein. Also, although some steps are described as being performed asynchronously, in other embodiments, some of these steps may be performed concurrently. Further, illustration of a process by depiction in the drawings does not mean that the illustrated process is exclusive of other changes and modifications thereto, and that any of the illustrated process or steps thereof may be one of various embodiments of the present invention. It is not meant to be essential to one or more, and it does not imply that the illustrated process is preferred.

In operation 510, a processor (eg, the processor 120 of FIG. 1 ) may receive data from a user terminal using a blockchain server and provide a reward. The processor 120 may receive personal health record (PHR) data from the user terminal. Upon receiving the data, the processor 120 may create a smart contract so that the blockchain server provides a reward to the user terminal.

In operation 520, the processor 120 may generate de-identified data using the received data. The processor 120 may delete information related to personal privacy from the personal health record data received in operation 510 . De-identified data may include gender, age, disease prevalence, and physical data related to disease prevalence. De-identified data can protect an individual's privacy by removing personally identifiable information.

In operation 530, the processor 120 may receive a specific amount of money from a terminal of a data analysis company and provide de-identified data. The processor 120 may create a smart contract so that the blockchain server transmits de-identified data to the terminal of the data analysis company when receiving a specific amount of money and a data transmission request from the terminal of the data analysis company.

According to an embodiment, the processor 120 generates a smart contract to provide a reward to the user terminal when it is confirmed that personal health record (PHR) data has been received from the user terminal, and the data When it is confirmed that an amount proportional to the quantity of desired data has been deposited from the terminal of the analysis company, a smart contract is created to provide the de-identified data to the terminal of the data analysis company, and a reward is sent to the user terminal. To upload the first information including the quantity and price of the reward paid based on the provision, the node ID corresponding to the user terminal, on the blockchain network, and to provide the de-identified data to the terminal of the data analysis company Second information including the amount deposited based on the deposit, the identification number of the data provided to the terminal of the data analysis company, and the quantity of data can be uploaded on the blockchain network.

According to an embodiment, the processor 120 increases the quantity of rewards provided to user terminals by 10% based on the fact that the number of user terminals providing personal health record data for a designated period is less than the first level, and during the designated period Based on the fact that the number of user terminals providing personal health record data is less than the second level, which is relatively higher than the first level, the quantity of rewards provided to user terminals is increased by 5% and personal health record data is provided for a specified period of time. The quantity of rewards provided to user terminals is increased by 15% based on the fact that the number of user terminals that do this is less than the third level, which is relatively lower than the first level, and there is no number of user terminals providing personal health record data for a specified period of time. Based on this, the quantity of rewards provided to the user terminal can be increased by 25%.

The period specified here (e.g., 1 month) may vary depending on the settings. The first level may mean, for example, 100 and may vary according to settings. The second level may mean a relatively larger number (eg, 150) than the first level. The third level may mean a relatively smaller number (eg, 50) than the first level.

The body data related to disease possession includes at least one of the user's blood pressure information, body composition information, and biosignal information, and the form of the reward may include a token or coin form.

According to one embodiment, the processor 120 determines the supply amount of the reward provided to the user terminal based on the number of data analysis companies requesting data for a specified period and the amount deposited by the data analysis company, and the specified period An amount of a reward to be transmitted to the user terminal may be differently determined based on the number of user terminals providing personal health record data during the period.

According to one embodiment, the processor 120 determines the supply amount of the reward as 100 based on the amount deposited by the data analysis company requesting data for a specified period is less than the first level, and requests the data for the specified period. Based on the fact that the deposited amount from the data analysis company is less than the second level, which is relatively higher than the first level, the amount of reward supply is determined to be 200, and the amount deposited from the data analysis company requesting data for a specified period. The supply amount of the reward may be determined to be 50 based on the fact that is less than the third level, which is relatively lower than the first level.

Here, the first level (eg, 1 million won) may vary according to settings. The supply amount of the reward is just an example and may vary depending on the setting.

Claims (3)

In a system that provides a blockchain-based medical data analysis platform
processor; and
contains memory;
The processor
When personal health record (PHR) data is received from a user terminal using a blockchain server, a reward is provided to the user terminal,
Deleting information related to personal privacy from the received personal health record data and generating data including body data related to gender, age, and disease status;
When receiving a specific amount and data transmission request from the terminal of a data analysis company using a blockchain server, the generated data is transmitted to the terminal of the data analysis company,
Determine the supply amount of the reward provided to the user terminal based on the number of data analysis companies requesting data for a specified period and the amount deposited by the data analysis company;
Based on the fact that the amount deposited by the data analysis company requesting data during the specified period is less than the first level, the supply amount of the reward is determined as 100;
Based on the fact that the amount deposited by the data analysis company requesting data during the specified period is less than the second level, which is relatively higher than the first level, the supply amount of the reward is determined to be 200;
Based on the fact that the amount deposited by the data analysis company requesting data during the specified period is less than the third level, which is relatively lower than the first level, the supply amount of the reward is determined to be 50,
Increase the amount of rewards provided to one user terminal by 10% based on the fact that the number of user terminals providing personal health record data for a specified period is less than the first level;
The number of rewards provided to one user terminal is increased by 5% based on the fact that the number of user terminals providing personal health record data for a specified period is less than a second level relatively higher than the first level,
Increasing the number of rewards provided to one user terminal by 15% based on the fact that the number of user terminals providing personal health record data for a specified period is less than the third level, which is relatively lower than the first level;
Increases the quantity of rewards provided to one user terminal by 25% based on the absence of the number of user terminals providing personal health record data for a specified period of time,
Physical data related to the presence of the above diseases
It includes at least one of the user's blood pressure information, body composition information, and biosignal information;
The form of the reward system includes a token or coin form.
According to claim 1,
The processor
When it is confirmed that the personal health record (PHR) data has been received from the user terminal, a smart contract is created to provide a reward to the user terminal,
When it is confirmed that the amount proportional to the quantity of desired data has been deposited from the terminal of the data analysis company, a smart contract is created to provide the generated data to the terminal of the data analysis company,
Upload first information including the quantity and price of the reward paid based on the reward being provided to the user terminal and the node ID corresponding to the user terminal on the blockchain network;
Uploading second information including the amount deposited based on the provision of the generated data to the terminal of the data analysis company and the identification number of the data provided to the terminal of the data analysis company and the quantity of data on the blockchain network system.



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