Block chain-based asset unified supervision and tracking system and method

Abstract

The invention discloses an asset unified supervision and tracking system and method based on a block chain, and relates to the technical field of asset management. Physical attributes, attribution departments and purchase information of equipment are stored in a decentralized account book in the form of hash values based on the block chain technology; an RFID reading module is adopted to collect position information in real time in the equipment using process, dynamic tracking and decentralized standing book construction are achieved through a block chain, and the problems that in a traditional method, information updating is lagged, and equipment circulation records are inaccurate are effectively solved; meanwhile, the smart contract of the block chain network realizes a dynamic early warning function, abnormal recording and early warning are automatically triggered when the smart contract exceeds a specified area, and equipment deployment is optimized in combination with the equipment use frequency and department requirements, so that the management efficiency is remarkably improved; in the equipment operation stage, a health state score is generated by collecting performance parameters and a fault rate, potential problems are automatically recognized in combination with an intelligent algorithm, and a maintenance task is triggered.

Description

Technical Field

[0001] The present invention relates to the field of asset management technology, and in particular to a blockchain-based unified asset supervision and tracking system and method. Background Art

[0002] In asset management, unified supervision is one of the key factors for efficient operation, especially for assets with many types, large value spans and strong liquidity. The management of assets is difficult and needs to cover their entire life cycle and be real-time and accurate in order to adapt to complex circulation needs.

[0003] Regarding hospital asset management, medical equipment asset management involves a large number of equipment, including large fixed diagnostic and treatment equipment (such as CT, MRI) and small high-frequency mobile equipment (such as monitors, injection pumps). During use, the location of these devices changes frequently, the usage scenarios are complex, and the requirements between different devices vary significantly. Traditional management methods mostly rely on manual records or barcode scanning technology, but these methods are difficult to meet the needs of real-time tracking. Once the location of the equipment changes, the one-time scanning limitations of barcode technology are prominent, and it is difficult to ensure that the information is updated synchronously; in addition, traditional methods have blind spots in covering the entire life cycle of the equipment, from the purchase and warehousing of the equipment to its use, maintenance, and even scrapping and disposal. The data in each link is isolated, and the information chain cannot be connected, resulting in management disconnection; this disconnection is likely to cause a series of problems in actual use, such as confusion in equipment location, unclear responsibilities, low efficiency, and even equipment loss due to regulatory loopholes.

[0004] To make up for the shortcomings, some traditional solutions have strengthened control by adding approval processes or management links, but this has also significantly increased operational complexity and management costs, and it is difficult to fundamentally solve the problems of delayed data updates and inaccurate tracking; therefore, there is an urgent need for a blockchain-based unified asset supervision and tracking solution to solve such problems. Summary of the invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The present invention provides a blockchain-based unified asset supervision and tracking system and method to solve the problem of hospital asset management. Traditional solutions rely too much on manual and barcode management methods, resulting in data lag, inaccurate tracking, and insufficient life cycle coverage, leading to high costs and low efficiency.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides a unified asset supervision and tracking system based on blockchain, which includes:

[0009] The digital registration module, based on blockchain technology, stores the electronic tag information of the equipment in a decentralized ledger. This module assigns a unique identifier to the equipment during the storage stage.

[0010] RFID reading module, including fixed and mobile RFID readers, is used to collect device location information during device use and upload the collected data to the blockchain network synchronously. This module supports dynamic tracking of device location and builds a decentralized medical device ledger in combination with the blockchain network;

[0011] Blockchain network, used to store and manage data throughout the life cycle of equipment, combined with smart contracts to achieve automation functions;

[0012] The blockchain network is also used to upload and store equipment operation data, generate health status reports through intelligent algorithms, analyze potential problems and trigger maintenance tasks, and record the scrapping and disposal process of equipment;

[0013] The regional monitoring module is used to adjust the deployment of equipment. When it is detected that the equipment exceeds the designated area, the blockchain's smart contract automatically triggers the recording and early warning of abnormal behavior, and dynamically adjusts the deployment of equipment based on the frequency of equipment use and department needs.

[0014] In a second aspect, the present invention provides a unified asset supervision and tracking method based on blockchain, comprising:

[0015] Step S1, during the medical equipment storage phase, a unique electronic tag is assigned to each device, which contains the device's physical attributes, department of affiliation, and procurement information;

[0016] Step S2: During the use of the equipment, the location information of the equipment is collected in real time through fixed and mobile RFID readers, and the information is uploaded to the blockchain network synchronously to build a decentralized medical equipment ledger and form a real-time updated equipment circulation record;

[0017] Step S3, collecting the operation data of the equipment and uploading it to the blockchain network to generate a equipment health status report;

[0018] Step S4, based on the equipment life cycle data accumulated on the blockchain, automatically determine whether the equipment has reached the scrap standard, and generate a disposal plan accordingly, including recycling, updating or reuse of the equipment;

[0019] The disposal process of scrapped equipment is recorded through blockchain.

[0020] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, in which: during the medical equipment warehousing stage, the step of assigning a unique electronic tag to each device is as follows:

[0021] The acquired electronic tag information is defined as I, which is expressed as:

[0022] I={P,D,Q},

[0023] Among them, I represents the electronic tag information, P represents the physical properties of the equipment, D represents the department to which the equipment belongs, and Q represents the purchase information of the equipment.

[0024] Use the hash function to generate a unique identifier for the electronic tag information. The hash formula is:

[0025] H(I)=Hash(P+D+Q),

[0026] Where H(I) represents the hash value of the electronic tag information, Hash is the hash function,

[0027] Write the generated hash value H(I) into the blockchain network. The writing formula is:

[0028] B t =B t-1 +H(I),

[0029] Among them, B t represents the state of the blockchain at time t, B t-1 It represents the state of the blockchain at time t-1, and H(I) is the hash value of the newly added electronic tag.

[0030] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, the smart contract on the blockchain network provides a dynamic early warning function:

[0031] When the device exceeds the specified area, it will automatically trigger the recording and warning of abnormal behavior.

[0032] The early warning function dynamically adjusts the deployment and allocation of equipment based on the frequency of equipment use and department needs.

[0033] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, the steps of collecting the location information of the equipment in real time through fixed and mobile RFID readers, and synchronously uploading the information to the blockchain network, building a decentralized medical equipment ledger, and forming a real-time updated equipment circulation record are as follows:

[0034] Define the location information of the device as L t , expressed as:

[0035] L t =(x t ,y t , z t ),

[0036] Among them, Lt Represents the three-dimensional position information of the device at time t, x t ,y t 、z t They represent the three-dimensional spatial coordinates of the device at time t,

[0037] Use RFID readers to collect device location information in real time. The collection process is as follows:

[0038] R t =f(L t ),

[0039] Among them, R t represents the location information collected by the reader, and f is the acquisition function, which calculates the location information of the device based on the scanning radius and accuracy of the reader, specifically:

[0040]

[0041] Where n is the number of readers, w i is the weight of reader i, d i is the distance from the reader i to the device, C i is the measurement coordinate of reader i;

[0042] Generate a hash value from the collected location information and store it in the blockchain:

[0043] B t =B t-1 +H(L t ),

[0044] Among them, H(L t ) indicates the device location information L t The hash value of .

[0045] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, when the equipment exceeds the designated area, the abnormal behavior recording and warning are automatically triggered, and the warning function combines the equipment usage frequency and department needs to dynamically adjust the equipment deployment and allocation steps as follows:

[0046] Set the threshold A of the device activity area, expressed as:

[0047] A={(x,y,z)|x min ≤x≤x max ,y min ≤y≤y max , z min ≤z≤z max},

[0048] Among them, A represents the spatial range in which the device is allowed to move, x min, x max ,y min ,y max , z min , z max They are the activity range boundaries of the device on each axis.

[0049] To determine whether the device is out of the area, the judgment formula is:

[0050] like Then F t =1,

[0051] If L t ∈A, then F t =0,

[0052] Among them, F t Indicates abnormal status identifier, F t =1 means the device is beyond the specified area, F t =0 means the device is in the specified area.

[0053] Record abnormal behavior t :

[0054] E t =H(L t +T),

[0055] Among them, E t Indicates the hash value of the abnormal behavior record, T indicates the timestamp,

[0056] Storing abnormal records in blockchain:

[0057] B t =B t-1 +E t ,

[0058] Among them, E t This is the newly added exception record information.

[0059] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, the step of automatically triggering the recording and warning of abnormal behavior when the equipment exceeds the designated area, and the warning function dynamically adjusts the deployment and allocation of equipment in combination with the equipment usage frequency and department needs also includes:

[0060] Combined with the equipment usage frequency U and department demand N, the equipment allocation is dynamically adjusted. The adjustment formula is:

[0061] D t =g(U,N),

[0062] Among them, D t represents the deployment plan of the device at time t, g is the deployment function, and its logic is:

[0063]

[0064] Among them, N i represents the equipment demand intensity of department i, U i Indicates the frequency of equipment use in department i.

[0065] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, wherein: the operation data includes performance parameters and failure rates;

[0066] Based on the health status report, the equipment status is analyzed in combination with intelligent algorithms, potential problems of the equipment are automatically identified, maintenance tasks are triggered based on potential problems, and notifications are sent to relevant responsible persons.

[0067] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, the steps of analyzing the equipment status based on the health status report in combination with the intelligent algorithm, automatically identifying potential problems of the equipment, triggering maintenance tasks according to potential problems, and sending notifications to relevant responsible persons are as follows:

[0068] Collect equipment operation data r , defined as:

[0069] D r ={p t , f t},

[0070] Among them, D r Indicates equipment operation data, p t Indicates performance parameters, f t represents the failure rate,

[0071] Generate a health status score based on the operating data, expressed as:

[0072] S h =w 1 p t -w 2 f t ,

[0073] Among them, S h Indicates the device health status score, w 1 , w 2 is the scoring weight,

[0074] When the health score falls below the threshold, a maintenance task is triggered:

[0075] If S h ≤S min , then M t =1, otherwise Mt =0;

[0076] Among them, M t Indicates the maintenance task status, S min Score thresholds for health status.

[0077] As a preferred solution of the blockchain-based unified asset supervision and tracking system and method described in the present invention, the steps of automatically determining whether the equipment has reached the scrap standard based on the equipment life cycle data accumulated on the blockchain and generating a disposal plan accordingly are:

[0078] Define equipment life cycle data L c , expressed as:

[0079] L c = {U t , M t , T t},

[0080] Among them, L c Represents the full life cycle data of the equipment, U t Indicates the cumulative usage time of the device, M t Indicates the cumulative maintenance times of the equipment, T t Indicates the total time since the equipment was purchased.

[0081] Computing Equipment Health Life Index I h , the calculation formula is:

[0082] I h =αU t +βM t +γT t ,

[0083] Among them, I h represents the equipment health life index, α, β, and γ are the weights of usage time, maintenance times, and total time, respectively.

[0084] To determine whether the equipment has reached the scrap standard, the determination formula is:

[0085] If I h ≥I max , then R t =1, otherwise R t =0,

[0086] Among them, R t Represents the scrap identifier, I max Indicates the equipment scrapping threshold,

[0087] According to R t The state generates a disposal plan P d :

[0088] P d =h(R t ),

[0089] Among them, P d represents the equipment disposal plan, h is the disposal plan function, and its logic is:

[0090] If R t = 1 and can be recycled, then h(R t ) = Recycling,

[0091] If R t =1 and needs to be updated, then h(R t ) = Update,

[0092] If R t = 0 and can be reused, then h(R t ) = reuse;

[0093] Store the disposal plan on the blockchain and track the disposal process:

[0094] B t =B t-1 +H(P d +T),

[0095] Among them, H(P d +T) is the hash value of the disposal plan and its timestamp.

[0096] The beneficial effects of the present invention are as follows: the present invention, based on the technology of blockchain, stores the physical properties, department affiliation and procurement information of the equipment in the form of hash values ​​in a decentralized account book, adopts an RFID reading module to collect location information in real time during the use of the equipment, and realizes dynamic tracking and construction of a decentralized ledger through blockchain, which effectively solves the problems of delayed information update and inaccurate equipment circulation records in traditional methods; at the same time, the smart contract of the blockchain network realizes a dynamic early warning function, automatically triggers abnormal records and early warnings when exceeding the specified area, and optimizes equipment allocation in combination with the frequency of equipment use and department needs, significantly improving management efficiency; for the equipment operation stage, by collecting performance parameters and failure rates, a health status score is generated, combined with an intelligent algorithm to automatically identify potential problems and trigger maintenance tasks; in addition, by analyzing the data of the entire life cycle of the equipment, calculating the healthy life index, intelligently determining whether the equipment has reached the scrap standard, generating the optimal disposal plan for recycling, updating or reuse, and recording the scrapping process through blockchain to ensure that the entire disposal process is transparent and traceable.

[0097] In summary, the present invention effectively makes up for the shortcomings of traditional asset management methods, not only achieving the unity of real-time and accuracy, but also significantly improving data transparency and equipment utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0098] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0099] Figure 1 This is a schematic diagram of the framework of the blockchain-based unified asset supervision and tracking system of the present invention.

[0100] Figure 2 This is a flow chart of the blockchain-based unified asset supervision and tracking method of the present invention. DETAILED DESCRIPTION

[0101] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0102] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0103] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0104] Example 1, reference Figure 1 and Figure 2 This embodiment provides a unified asset supervision and tracking system based on blockchain, including:

[0105] The digital registration module, based on blockchain technology, stores the electronic tag information of the equipment in a decentralized ledger. This module assigns a unique identifier to the equipment during the storage stage.

[0106] RFID reading module, including fixed and mobile RFID readers, is used to collect device location information during device use and upload the collected data to the blockchain network synchronously. This module supports dynamic tracking of device location and builds a decentralized medical device ledger in combination with the blockchain network;

[0107] Blockchain network, used to store and manage data throughout the life cycle of equipment, combined with smart contracts to achieve automation functions;

[0108] The blockchain network is also used to upload and store equipment operation data, generate health status reports through intelligent algorithms, analyze potential problems and trigger maintenance tasks, and record the scrapping and disposal process of equipment;

[0109] The regional monitoring module is used to adjust the deployment of equipment. When it is detected that the equipment exceeds the designated area, the blockchain's smart contract automatically triggers the recording and early warning of abnormal behavior, and dynamically adjusts the deployment of equipment based on the frequency of equipment use and department needs.

[0110] This embodiment also provides a blockchain-based unified asset supervision and tracking method, including:

[0111] Step S1, during the medical equipment storage phase, a unique electronic tag is assigned to each device, which contains the device's physical attributes, department of affiliation, and procurement information;

[0112] During the medical equipment storage phase, the steps to assign a unique electronic tag to each device are:

[0113] The acquired electronic tag information is defined as I, which is expressed as:

[0114] I={P,D,Q},

[0115] Among them, I represents the electronic tag information, P represents the physical properties of the equipment, D represents the department to which the equipment belongs, and Q represents the purchase information of the equipment.

[0116] Use the hash function to generate a unique identifier for the electronic tag information. The hash formula is:

[0117] H(I)=Hash(P+D+Q),

[0118] Where H(I) represents the hash value of the electronic tag information, Hash is the hash function,

[0119] Write the generated hash value H(I) into the blockchain network. The writing formula is:

[0120] B t =B t-1 +H(I),

[0121] Among them, B t represents the state of the blockchain at time t, B t-1 It represents the state of the blockchain at time t-1, and H(I) is the hash value of the newly added electronic tag;

[0122] Specifically, the electronic tag information is stored in the blockchain network after a unique identifier is generated through a hash function, ensuring the transparency and immutability of the information and standardizing the storage of information during the equipment warehousing stage.

[0123] Step S2: During the use of the equipment, the location information of the equipment is collected in real time through fixed and mobile RFID readers, and the information is uploaded to the blockchain network synchronously to build a decentralized medical equipment ledger and form a real-time updated equipment circulation record;

[0124] Smart contracts on the blockchain network provide dynamic early warning functions:

[0125] When the device exceeds the specified area, it will automatically trigger the recording and warning of abnormal behavior.

[0126] The early warning function dynamically adjusts the deployment and allocation of equipment based on the frequency of equipment use and department needs;

[0127] The steps of collecting the location information of the equipment in real time through fixed and mobile RFID readers and uploading the information to the blockchain network synchronously to build a decentralized medical equipment ledger and form a real-time updated equipment circulation record are as follows:

[0128] Define the location information of the device as L t , expressed as:

[0129] L t =(x t ,y t , z t ),

[0130] Among them, L t Represents the three-dimensional position information of the device at time t, x t ,y t 、z t They represent the three-dimensional spatial coordinates of the device at time t,

[0131] Use RFID readers to collect device location information in real time. The collection process is as follows:

[0132] R t =f(L t ),

[0133] Among them, R t represents the location information collected by the reader, and f is the acquisition function, which calculates the location information of the device based on the scanning radius and accuracy of the reader, specifically:

[0134]

[0135] Where n is the number of readers, w i is the weight of reader i, d i is the distance from the reader i to the device, C i is the measurement coordinate of reader i;

[0136] Generate a hash value from the collected location information and store it in the blockchain:

[0137] B t =B t-1 +H(L t ),

[0138] Among them, H(L t ) indicates the device location information L t The hash value of

[0139] When the equipment exceeds the designated area, it will automatically trigger the recording and warning of abnormal behavior. The warning function combines the frequency of equipment use and department needs to dynamically adjust the deployment and allocation of equipment.

[0140] Set the threshold A of the device activity area, expressed as:

[0141] A={(x,y,z)|x min ≤x≤x max ,y min ≤y≤y max , z min ≤z≤z max},

[0142] Among them, A represents the spatial range in which the device is allowed to move, x min , x max ,y min ,y max , z min , z max They are the activity range boundaries of the device on each axis.

[0143] To determine whether the device is out of the area, the judgment formula is:

[0144] like Then F t =1,

[0145] If L t ∈A, then F t =0,

[0146] Among them, F t Indicates abnormal status identifier, F t =1 means the device is beyond the specified area, F t =0 means the device is in the specified area.

[0147] Record abnormal behavior t :

[0148] E t =H(L t +T),

[0149] Among them, E tIndicates the hash value of the abnormal behavior record, T indicates the timestamp,

[0150] Storing abnormal records in blockchain:

[0151] B t =B t-1 +E t ,

[0152] Among them, E t It is the newly added abnormal record information;

[0153] When the equipment exceeds the designated area, it will automatically trigger the recording and warning of abnormal behavior. The warning function combines the frequency of equipment use and department needs to dynamically adjust the deployment and allocation of equipment. The steps also include:

[0154] Combined with the equipment usage frequency U and department demand N, the equipment allocation is dynamically adjusted. The adjustment formula is:

[0155] D t =g(U,N),

[0156] Among them, D t represents the deployment plan of the device at time t, g is the deployment function, and its logic is:

[0157]

[0158] Among them, N i represents the equipment demand intensity of department i, U i represents the frequency of equipment use in department i;

[0159] Specifically, RFID readers are used to collect device location information, record abnormal behaviors, and perform dynamic device deployment. Functions are used to calculate device location and dynamic deployment logic to improve device management effectiveness and provide intelligent early warnings.

[0160] Step S3, collecting the operation data of the equipment and uploading it to the blockchain network to generate a equipment health status report;

[0161] Operational data include performance parameters and failure rates;

[0162] Based on the health status report, the intelligent algorithm is used to analyze the equipment status, automatically identify potential problems of the equipment, trigger maintenance tasks based on potential problems, and send notifications to relevant responsible persons;

[0163] Based on the health status report, the equipment status is analyzed in combination with intelligent algorithms, potential problems of the equipment are automatically identified, and maintenance tasks are triggered according to potential problems. The steps to send notifications to relevant responsible persons are as follows:

[0164] Collect equipment operation data r, defined as:

[0165] D r ={p t , f t},

[0166] Among them, D r Indicates equipment operation data, p t Indicates performance parameters, f t represents the failure rate,

[0167] Generate a health status score based on the operating data, expressed as:

[0168] S h =w 1 p t -w 2 f t ,

[0169] Among them, S h Indicates the device health status score, w 1 , w 2 is the scoring weight,

[0170] When the health score falls below the threshold, a maintenance task is triggered:

[0171] If S h ≤S min , then M t =1, otherwise M t =0;

[0172] Among them, M t Indicates the maintenance task status, S min scoring thresholds for health status;

[0173] Specifically, by collecting operating data to generate a health score, the health status of the equipment is clear at a glance, and maintenance tasks are automatically triggered based on the score threshold, realizing intelligent and automated equipment maintenance.

[0174] Step S4, based on the equipment life cycle data accumulated on the blockchain, automatically determine whether the equipment has reached the scrap standard, and generate a disposal plan accordingly, including recycling, updating or reuse of the equipment;

[0175] Record the disposal process of scrapped equipment through blockchain;

[0176] Based on the equipment life cycle data accumulated on the blockchain, the steps to automatically determine whether the equipment has reached the scrap standard and generate a disposal plan accordingly are as follows:

[0177] Define equipment life cycle data L c , expressed as:

[0178] Lc = {U t , M t , T t},

[0179] Among them, L c Represents the full life cycle data of the equipment, U t Indicates the cumulative usage time of the device, M t Indicates the cumulative maintenance times of the equipment, T t Indicates the total time since the equipment was purchased.

[0180] Computing Equipment Health Life Index I h , the calculation formula is:

[0181] I h =αU t +βM t +γT t ,

[0182] Among them, I h represents the equipment health life index, α, β, and γ are the weights of usage time, maintenance times, and total time, respectively.

[0183] To determine whether the equipment has reached the scrap standard, the determination formula is:

[0184] If I h ≥I max , then R t =1, otherwise R t =0,

[0185] Among them, R t Represents the scrap identifier, I max Indicates the equipment scrapping threshold,

[0186] According to R t The state generates a disposal plan P d :

[0187] P d =h(R t ),

[0188] Among them, P d represents the equipment disposal plan, h is the disposal plan function, and its logic is:

[0189] If R t = 1 and can be recycled, then h(R t ) = Recycling,

[0190] If R t =1 and needs to be updated, then h(R t ) = Update,

[0191] If R t= 0 and can be reused, then h(R t ) = reuse;

[0192] Store the disposal plan on the blockchain and track the disposal process:

[0193] B t =B t-1 +H(P d +T),

[0194] Among them, H(P d +T) is the hash value of the disposal plan and its timestamp;

[0195] Specifically, in this step, the healthy life expectancy index is calculated based on the equipment's full life cycle data to intelligently determine whether the equipment has reached the scrap standard; and a corresponding disposal plan is generated based on the determination result. Combined with blockchain technology, the entire equipment scrapping process is traceable, thereby improving the standardization of medical equipment management and resource utilization.

[0196] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A unified asset supervision and tracking system based on blockchain, characterized by: include, The digital registration module, based on blockchain technology, stores the electronic tag information of the equipment in a decentralized ledger. This module assigns a unique identifier to the equipment during the storage stage. RFID reading module, including fixed and mobile RFID readers, is used to collect device location information during device use and upload the collected data to the blockchain network synchronously. This module supports dynamic tracking of device location and builds a decentralized medical device ledger in combination with the blockchain network; Blockchain network, used to store and manage data throughout the life cycle of equipment, combined with smart contracts to achieve automation functions; The blockchain network is also used to upload and store equipment operation data, generate health status reports through intelligent algorithms, analyze potential problems and trigger maintenance tasks, and record the scrapping and disposal process of equipment; The regional monitoring module is used to adjust the deployment of equipment. When it is detected that the equipment exceeds the designated area, the blockchain's smart contract automatically triggers the recording and early warning of abnormal behavior, and dynamically adjusts the deployment of equipment based on the frequency of equipment use and department needs.

2. A blockchain-based unified asset supervision and tracking method, based on the blockchain-based unified asset supervision and tracking system of claim 1, characterized in that: include: Step S1, during the medical equipment storage phase, a unique electronic tag is assigned to each device, which contains the device's physical attributes, department of affiliation, and procurement information; Step S2: During the use of the equipment, the location information of the equipment is collected in real time through fixed and mobile RFID readers, and the information is uploaded to the blockchain network synchronously to build a decentralized medical equipment ledger and form a real-time updated equipment circulation record; Step S3, collecting the operation data of the equipment and uploading it to the blockchain network to generate a equipment health status report; Step S4, based on the equipment life cycle data accumulated on the blockchain, automatically determine whether the equipment has reached the scrap standard, and generate a disposal plan accordingly, including recycling, updating or reuse of the equipment; The disposal process of scrapped equipment is recorded through blockchain.

3. The method for unified asset supervision and tracking based on blockchain as claimed in claim 2, characterized in that: During the medical equipment storage phase, the steps of assigning a unique electronic tag to each device are as follows: The acquired electronic tag information is defined as I, which is expressed as: I={P,D,Q}, Among them, I represents the electronic tag information, P represents the physical properties of the equipment, D represents the department to which the equipment belongs, and Q represents the purchase information of the equipment. Use the hash function to generate a unique identifier for the electronic tag information. The hash formula is: H(I)=Hash(P+D+Q), Where H(I) represents the hash value of the electronic tag information, Hash is the hash function, Write the generated hash value H(I) into the blockchain network. The writing formula is: B t =B t-1 +H(I), Among them, B t represents the state of the blockchain at time t, B t-1 It represents the state of the blockchain at time t-1, and H(I) is the hash value of the newly added electronic tag.

4. The method for unified asset supervision and tracking based on blockchain as claimed in claim 3, characterized in that: Smart contracts on the blockchain network provide dynamic early warning functions: When the device exceeds the specified area, it will automatically trigger the recording and warning of abnormal behavior. The early warning function dynamically adjusts the deployment and allocation of equipment based on the frequency of equipment use and department needs.

5. A blockchain-based unified asset supervision and tracking method as claimed in claim 4, characterized in that: The steps of collecting the location information of the equipment in real time through fixed and mobile RFID readers, and synchronously uploading the information to the blockchain network, building a decentralized medical equipment ledger, and forming a real-time updated equipment circulation record are as follows: Define the location information of the device as L t , expressed as: L t =(x t ,y t ,z t ), Among them, L t Represents the three-dimensional position information of the device at time t, x t ,y t 、z t They represent the three-dimensional spatial coordinates of the device at time t, Use RFID readers to collect device location information in real time. The collection process is as follows: R t =f(L t ), Among them, R t represents the location information collected by the reader, and f is the acquisition function, which calculates the location information of the device based on the scanning radius and accuracy of the reader, specifically: Where n is the number of readers, w i is the weight of reader i, d i is the distance from the reader i to the device, C i is the measurement coordinate of reader i; Generate a hash value from the collected location information and store it in the blockchain: B t =B t-1 +H(L t ), Among them, H(L t ) indicates the device location information L t The hash value of .

6. A blockchain-based unified asset supervision and tracking method as claimed in claim 5, characterized in that: The steps of automatically triggering the recording and warning of abnormal behavior when the equipment exceeds the designated area, and the warning function dynamically adjusting the deployment and allocation of equipment in combination with the equipment usage frequency and department needs are as follows: Set the threshold A of the device activity area, expressed as: A={(x,y,z)|x min ≤x≤x max ,y min ≤y≤y max ,z min ≤z≤z max }, Among them, A represents the spatial range in which the device is allowed to move, x min ,x max ,y min ,y max ,z min ,z max They are the activity range boundaries of the device on each axis. To determine whether the device is out of the area, the judgment formula is: like Then F t =1, If L t ∈A, then F t =0, Among them, F t Indicates abnormal status identifier, F t =1 means the device is beyond the specified area, F t =0 means the device is in the specified area. Record abnormal behavior t : E t =H(L t +T), Among them, E t Indicates the hash value of the abnormal behavior record, T indicates the timestamp, Storing abnormal records in blockchain: B t =B t-1 +E t , Among them, E t This is the newly added exception record information.

7. A blockchain-based unified asset supervision and tracking method as claimed in claim 6, characterized in that: The step of automatically triggering the recording and warning of abnormal behavior when the equipment exceeds the designated area, and the warning function dynamically adjusting the deployment and allocation of the equipment in combination with the equipment usage frequency and department needs also includes: Combined with the equipment usage frequency U and department demand N, the equipment allocation is dynamically adjusted. The adjustment formula is: D t =g(U,N), Among them, D t represents the deployment plan of the device at time t, g is the deployment function, and its logic is: Among them, N i represents the equipment demand intensity of department i, U i Indicates the frequency of equipment use in department i.

8. The method for unified asset supervision and tracking based on blockchain as claimed in claim 7, characterized in that: The operating data includes performance parameters and failure rates; Based on the health status report, the equipment status is analyzed in combination with intelligent algorithms, potential problems of the equipment are automatically identified, maintenance tasks are triggered based on potential problems, and notifications are sent to relevant responsible persons.

9. A blockchain-based unified asset supervision and tracking method as claimed in claim 8, characterized in that: The steps of analyzing the equipment status based on the health status report and combining the intelligent algorithm to automatically identify potential problems of the equipment, triggering maintenance tasks according to the potential problems, and sending notifications to relevant responsible persons are as follows: Collect equipment operation data r , defined as: D r ={p t ,f t }, Among them, D r Indicates equipment operation data, p t Indicates performance parameters, f t represents the failure rate, Generate a health status score based on the operating data, expressed as: S h =w1p t -w2f t , Among them, S h Indicates the equipment health status score, w1 and w2 are the score weights, When the health score falls below the threshold, a maintenance task is triggered: If S h ≤S min , then M t =1, otherwise M t =0; Among them, M t Indicates the maintenance task status, S min Score thresholds for health status.

10. A blockchain-based unified asset supervision and tracking method as claimed in claim 9, characterized in that: The steps of automatically determining whether the equipment has reached the scrap standard based on the equipment life cycle data accumulated on the blockchain and generating a disposal plan accordingly are: Define equipment life cycle data L c , expressed as: L c ={U t ,M t ,T t }, Among them, L c Represents the full life cycle data of the equipment, U t Indicates the cumulative usage time of the device, M t Indicates the cumulative maintenance times of the equipment, T t Indicates the total time since the equipment was purchased. Computing Equipment Health Life Index I h , the calculation formula is: I h =αU t +βM t +γT t , Among them, I h represents the equipment health life index, α, β, and γ are the weights of usage time, maintenance times, and total time, respectively. To determine whether the equipment has reached the scrap standard, the determination formula is: If I h ≥I max , then R t =1, otherwise R t =0, Among them, R t Represents the scrap identifier, I max Indicates the equipment scrapping threshold, According to R t The state generates a disposal plan P d : P d =h(R t ), Among them, P d represents the equipment disposal plan, h is the disposal plan function, and its logic is: If R t = 1 and can be recycled, then h(R t ) = Recycling, If R t =1 and needs to be updated, then h(R t ) = Update, If R t = 0 and can be reused, then h(R t ) = reuse; Store the disposal plan on the blockchain and track the disposal process: B t =B t-1 +H(P d +T), Among them, H(P d +T) is the hash value of the disposal plan and its timestamp.

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