CN117336048A - Medical equipment cloud management maintenance system based on Internet of things - Google Patents
Medical equipment cloud management maintenance system based on Internet of things Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
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- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/20—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention relates to the technical field of medical equipment maintenance, in particular to a medical equipment cloud management maintenance system based on the Internet of things.
Description
Technical Field
The invention relates to the technical field of medical equipment maintenance, in particular to a medical equipment cloud management maintenance system based on the Internet of things.
Background
Along with the continuous development of scientific technology, clinical engineering technology is more and more widely applied in the medical service industry, a large number of high-precision medical equipment is applied to clinical practice, a large number of diagnosis information and auxiliary treatment means are provided for clinical workers, and the reliability of medical equipment in a hospital is ensured to be critical to the treatment effect of patients, so that the maintenance and management of the medical equipment are important components of the hospital management, and the aim is to formulate an optimal maintenance strategy so as to improve the reliability of the medical equipment to the maximum extent and shorten the downtime to the maximum extent.
The internet of things integrates the sensing technology into the original internet, different kinds of data are collected through the sensor, the things are connected with the things, real-time barrier-free data transmission is achieved, meanwhile, the internet of things also has data processing capacity, the cloud platform provides powerful information service for users, and medical equipment used in hospitals at present has networking functions, so that the internet of things and medical equipment maintenance can be combined, and equipment maintenance capacity is improved. The existing internet of things technology can be mostly only used for preventive maintenance analysis when being applied to medical equipment maintenance, but cannot quantitatively determine the medical equipment maintenance criterion, interference nodes can appear in the medical equipment information transmission process, and errors appear in the analysis of the medical equipment operation information.
The maintenance system comprises a main control server based on big data, an information feedback terminal, a medical process information acquisition terminal, a medical equipment information acquisition terminal and a communication network, wherein the medical process information acquisition terminal and the medical equipment information acquisition terminal respectively establish data connection with the main control server based on the big data through the communication network, and the main control server based on the big data establishes data connection with at least the information feedback terminal through the communication network. The invention can simultaneously and effectively meet the requirements of various medical activities, medical equipment system equipment operation maintenance management, doctor-patient relationship maintenance management and medical process information record keeping operation, thereby improving the medical equipment operation management work efficiency.
The problems presented in the background art exist in the above patents: the medical equipment cloud management maintenance system based on the Internet of things is designed in order to solve the problems that preventive maintenance analysis can be performed only, but the medical equipment maintenance criterion cannot be quantitatively determined, interference nodes can appear in the medical equipment information transmission process, and errors appear in the analysis of the medical equipment operation information.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a medical equipment cloud management maintenance system based on the Internet of things, which comprises the steps that firstly, medical equipment operation information is detected through a sensor node and is transmitted to a communication gateway, the communication gateway generates a root key according to a registration strategy of the communication gateway, the medical equipment operation information is encrypted, secondly, the communication gateway sends the encrypted medical equipment operation information to a server, the server analyzes and processes the medical equipment operation information after decryption, the medical equipment maintenance requirement is determined, and finally, the server sends maintenance advice to relevant departments of a hospital, so that the medical equipment cloud management maintenance is realized.
In order to achieve the above purpose, the present invention provides the following technical solutions:
medical equipment cloud management maintenance system based on thing networking, it includes:
the medical equipment monitoring subsystem, the medical equipment operation information transmission subsystem and the medical equipment operation information processing subsystem;
the medical equipment monitoring subsystem is used for collecting medical equipment operation information according to sensor nodes deployed near the medical equipment;
the medical equipment operation information transmission subsystem is used for transmitting the encrypted medical equipment operation information to the server;
the medical equipment operation information processing subsystem is used for decrypting the transmitted medical equipment operation information, processing and analyzing the medical equipment operation information and sending maintenance information through the server;
specifically, the medical equipment operation information transmission subsystem comprises a communication gateway registration module, wherein the communication gateway registration module is used for generating identity information of a communication gateway according to a communication gateway registration strategy and sending the identity information to a server for backup;
specifically, the medical equipment operation information processing subsystem comprises a medical equipment operation information analysis module, wherein the medical equipment operation information analysis module is used for analyzing the operation state of the medical equipment according to a medical equipment operation information analysis strategy;
specifically, the medical equipment monitoring subsystem comprises a sensor node module and a communication gateway module;
the sensor node module is used for placing a sensor for monitoring the medical equipment and acquiring medical equipment operation information, wherein the medical equipment operation information comprises medical equipment operation time, medical equipment operation environment temperature, medical equipment operation environment humidity, medical equipment operation energy use, medical equipment accessory loss and medical equipment daily maintenance information;
the communication gateway module is used for verifying the identity of the sensor node and collecting the medical equipment operation information collected by the sensor node;
specifically, the sensor node module includes:
sensor node placement unit: for positioning the sensor node according to the working environment of the medical device;
time sensor: for collecting whether the medical device is operational and the operational time of the medical device;
temperature sensor: the system comprises a control unit, a control unit and a control unit, wherein the control unit is used for collecting the operating environment temperature of the operation of medical equipment;
humidity sensor: the working environment humidity acquisition module is used for acquiring the working environment humidity of the operation of the medical equipment;
energy detection sensor: the system is used for collecting the energy use condition of the operation of the medical equipment;
wear measurement sensor: the method comprises the steps of acquiring loss coefficients of medical equipment accessories;
a data transmission period setting unit: the method comprises the steps of presetting a time interval for transmitting data by a sensor node, and converging the data to a communication gateway module;
specifically, the communication gateway module includes:
identity authentication unit: the method comprises the steps of verifying the identity of a sensor node and filtering illegal nodes;
node disconnection warning unit: the sensor node is used for sending alarm information when the sensor node is disconnected with the communication gateway;
specifically, the medical equipment operation information transmission subsystem further comprises an information encryption module and a session key updating module;
the information encryption module is used for encrypting the transmitted medical equipment operation information and encrypting the medical equipment operation information collected by the sensor node according to the root key of the communication gateway;
the session key updating module is used for updating a key used when the gateway communicates with the server and transmits the operation information of the medical equipment;
specifically, the communication gateway registration module includes a communication gateway registration policy, where the specific steps of the communication gateway registration policy are as follows:
s601: the communication gateway sends the identity information to the server according to the preset node number;
s602: the server receives the identity information sent by the communication gateway, inquires the identity information of the communication gateway in a local gateway list, and if the identity information is not inquired, the server sends confirmation information to the communication gateway, and the server adds the identity information of the communication gateway into the local gateway list after the communication gateway confirms the identity information;
s603: generating a random number, and calculating a root key of the communication gateway according to the random number, the identity information of the communication gateway and a system master key of a server, wherein a root key calculation formula of the communication gateway is as follows:
O G ＝-nK+(m+e)mod2 r ,m、n∈ID G ，
wherein O is G Root key representing communication gateway, ID G Representing identity information of the communication gateway, m and n representing any number of digits in the identity information of the communication gateway, K representing a system master key of the server, (m+e) mod2 r Pair 2 representing the sum of any bit number and random error in the identity information of the communication gateway r Taking the remainder, e represents a random error, and r represents a random number;
s604: the server encrypts the identity information of the communication gateway and the root key by using the shared key, and sends the ciphertext to the communication gateway;
s605: the communication gateway receives the ciphertext sent by the server, decrypts according to the shared key to obtain communication gateway identity information and a root key, judges whether the communication gateway identity information sent by the server is identical to the locally stored identity information, if not, the registration fails, the steps are repeated, if so, the registration is successful, and the root key of the communication gateway is saved;
specifically, the medical equipment operation information processing subsystem further comprises a medical equipment information storage module, a medical equipment operation information decryption module, a medical equipment operation information preprocessing module and a medical equipment maintenance suggestion module;
the medical equipment information storage module is used for storing service life information of the medical equipment, working environment parameter information of the medical equipment and history maintenance information of the medical equipment;
the medical equipment operation information decryption module is used for decrypting the sensor node data transmitted by the communication gateway according to the secret key stored by the server;
the medical equipment operation information preprocessing module is used for preprocessing medical equipment operation information transmitted by the sensor node;
the medical equipment maintenance suggestion module is used for giving maintenance comments of the medical equipment according to the analysis result of the operation information of the medical equipment;
specifically, the medical equipment operation information preprocessing module includes:
medical equipment operation information denoising unit: the medical equipment operation information denoising method comprises the steps of denoising medical equipment operation information acquired by a sensor node;
medical equipment operation information normalization unit: the method is used for carrying out normalization processing on the denoised medical equipment operation information;
specifically, the medical equipment operation information analysis module includes a medical equipment operation information analysis strategy, and the medical equipment operation information analysis strategy specifically includes the following steps:
s901: calculating the residual service life of the medical equipment according to the service life information of the medical equipment, judging whether the medical equipment needs to be replaced, and if the medical equipment needs to be replaced, sending a medical equipment replacement prompt to a medical equipment purchasing department of a hospital by a service end;
s902: according to the medical equipment wear coefficient that the wear measurement sensor gathered, inspect medical equipment wearing parts and consumptive material, medical equipment wearing parts and consumptive material change standard calculation formula is:
wherein R is s Represents the standard of changing wearing parts and consumable parts of medical equipment, eta 1 The method comprises the steps that the abrasion coefficient of the medical equipment collected by an abrasion measurement sensor is represented, eta represents the rated abrasion coefficient of the medical equipment, when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 0, the vulnerable part and consumable parts of the medical equipment are not required to be replaced temporarily, when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 1, a server sends early warning of abrasion of the vulnerable part and consumable parts of the medical equipment to a medical equipment maintenance department, and when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 2, the server sends prompt of replacement of the vulnerable part and consumable parts of the medical equipment to the medical equipment maintenance department;
s903: according to the medical equipment operation time, the medical equipment operation environment temperature, the medical equipment operation environment humidity and the medical equipment operation energy use acquired by the sensor nodes, calculating a medical equipment operation maintenance requirement score, judging whether the medical equipment needs maintenance according to the medical equipment operation maintenance requirement score, wherein a calculation formula of the medical equipment operation maintenance requirement score is as follows:
wherein G represents a medical equipment operation and maintenance requirement score, t represents medical equipment operation time acquired by a sensor node, and t d Representing the rated operating time of the medical equipment, T represents the operating environment temperature of the medical equipment acquired by the sensor node, T d Representing the rated operating temperature of the medical equipment, W represents the operating environment humidity of the medical equipment collected by the sensor node, and W d Representing rated operating humidity of medical equipment, P representing operating energy of medical equipment collected by sensor nodes, and P d Indicating the rated operating energy, ω, of the medical device t Representing medical treatmentFactor, ω, of the impact of device runtime on medical device operation maintenance T Indicating the influence factor omega of the operating environment temperature of the medical equipment on the operation and maintenance of the medical equipment W Indicating the influence factor omega of the humidity of the medical equipment operation environment on the operation and maintenance of the medical equipment P Representing the influence factor of the operation energy of the medical equipment on the operation maintenance of the medical equipment, c 1 、c 2 、c 3 And c 4 A constant greater than 0 is represented, avoiding zero denominator;
specifically, the medical equipment maintenance suggestion module comprises a medical equipment daily maintenance unit and a medical equipment preventive maintenance unit;
the medical equipment daily maintenance unit is used for coordinating the daily maintenance time of the medical equipment according to the daily operation state of the medical equipment and the utilization rate of the medical equipment;
the medical equipment preventive maintenance unit is used for carrying out targeted maintenance on the medical equipment according to the medical equipment operation maintenance requirement score.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the medical equipment maintenance theory is considered, the daily maintenance and the preventive maintenance of the medical equipment are combined, the operation maintenance demand score of the medical equipment is calculated, the accuracy of the maintenance of the medical equipment is improved, the labor cost is reduced, and the reliability of the maintenance of the medical equipment is improved;
2. according to the invention, the use state of the medical equipment is monitored in real time through the Internet of things, so that the medical equipment maintenance data is informationized, a targeted maintenance scheme is formulated, the failure rate of the medical equipment is reduced, the real-time performance of the medical equipment maintenance is improved, and the good diagnosis and treatment effect of a patient is ensured;
3. according to the cloud management system and the cloud management method, adverse effects of interference node information in the Internet of things on operation information of the medical equipment are considered, a communication gateway registration strategy and session key update are added, the transmitted operation information of the medical equipment is encrypted, errors in maintenance and judgment of the medical equipment by the server are prevented, and the privacy of cloud management and maintenance of the medical equipment is improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
fig. 1 is a module diagram of a cloud management and maintenance system for medical equipment based on the internet of things according to embodiment 1 of the present invention;
fig. 2 is a data flow diagram of a medical device cloud management and maintenance system based on the internet of things according to embodiment 1 of the present invention;
fig. 3 is a flowchart of a registration process of a communication gateway according to embodiment 1 of the present invention;
FIG. 4 is a flowchart of the medical device operation information analysis strategy according to embodiment 1 of the present invention;
fig. 5 is a diagram illustrating a three-way handshake process according to embodiment 2 of the present inventions.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1:
referring to fig. 1 and 2, an embodiment of the present invention is provided: a medical device cloud management maintenance system based on the internet of things, comprising:
the medical equipment monitoring subsystem, the medical equipment operation information transmission subsystem and the medical equipment operation information processing subsystem;
the medical equipment monitoring subsystem is used for collecting medical equipment operation information according to sensor nodes deployed near the medical equipment;
the medical equipment operation information transmission subsystem is used for transmitting the encrypted medical equipment operation information to the server;
the medical equipment operation information processing subsystem is used for decrypting the transmitted medical equipment operation information, processing and analyzing the medical equipment operation information and sending maintenance information through the server;
specifically, the medical equipment operation information transmission subsystem comprises a communication gateway registration module, wherein the communication gateway registration module is used for generating identity information of a communication gateway according to a communication gateway registration strategy and sending the identity information to a server for backup;
specifically, the medical equipment operation information processing subsystem comprises a medical equipment operation information analysis module, wherein the medical equipment operation information analysis module is used for analyzing the operation state of the medical equipment according to a medical equipment operation information analysis strategy;
specifically, the medical equipment monitoring subsystem comprises a sensor node module and a communication gateway module;
the sensor node module is used for placing a sensor for monitoring the medical equipment and acquiring medical equipment operation information, wherein the medical equipment operation information comprises medical equipment operation time, medical equipment operation environment temperature, medical equipment operation environment humidity, medical equipment operation energy use, medical equipment accessory loss and medical equipment daily maintenance information;
the communication gateway module is used for verifying the identity of the sensor node and collecting the medical equipment operation information collected by the sensor node;
specifically, the sensor node module includes:
sensor node placement unit: for positioning the sensor node according to the working environment of the medical device;
time sensor: for collecting whether the medical device is operational and the operational time of the medical device;
temperature sensor: the system comprises a control unit, a control unit and a control unit, wherein the control unit is used for collecting the operating environment temperature of the operation of medical equipment;
humidity sensor: the working environment humidity acquisition module is used for acquiring the working environment humidity of the operation of the medical equipment;
energy detection sensor: the system is used for collecting the energy use condition of the operation of the medical equipment;
wear measurement sensor: the method comprises the steps of acquiring loss coefficients of medical equipment accessories;
a data transmission period setting unit: the method comprises the steps of presetting a time interval for transmitting data by a sensor node, and converging the data to a communication gateway module;
specifically, the communication gateway module includes:
identity authentication unit: the method comprises the steps of verifying the identity of a sensor node and filtering illegal nodes;
node disconnection warning unit: the sensor node is used for sending alarm information when the sensor node is disconnected with the communication gateway;
specifically, the medical equipment operation information transmission subsystem further comprises an information encryption module and a session key updating module;
the information encryption module is used for encrypting the transmitted medical equipment operation information and encrypting the medical equipment operation information collected by the sensor node according to the root key of the communication gateway;
the session key updating module is used for updating a key used when the gateway communicates with the server and transmits the operation information of the medical equipment;
referring to fig. 3, specifically, the communication gateway registration module includes a communication gateway registration policy, where the specific steps of the communication gateway registration policy are as follows:
s601: the communication gateway sends the identity information to the server according to the preset node number;
s602: the server receives the identity information sent by the communication gateway, inquires the identity information of the communication gateway in a local gateway list, and if the identity information is not inquired, the server sends confirmation information to the communication gateway, and the server adds the identity information of the communication gateway into the local gateway list after the communication gateway confirms the identity information;
s603: generating a random number, and calculating a root key of the communication gateway according to the random number, the identity information of the communication gateway and a system master key of a server, wherein a root key calculation formula of the communication gateway is as follows:
O G ＝-nK+(m+e)mod2 r ,m、n∈ID G ，
wherein O is G Root key representing communication gateway, ID G Representing identity information of the communication gateway, m and n representing any number of digits in the identity information of the communication gateway, K representing a system master key of the server, (m+e) mod2 r Representing a communication gateway bodySum of random error and arbitrary number in the share information is 2 r Taking the remainder, e represents a random error, and r represents a random number;
s604: the server encrypts the identity information of the communication gateway and the root key by using the shared key, and sends the ciphertext to the communication gateway;
s605: the communication gateway receives the ciphertext sent by the server, decrypts according to the shared key to obtain communication gateway identity information and a root key, judges whether the communication gateway identity information sent by the server is identical to the locally stored identity information, if not, the registration fails, the steps are repeated, if so, the registration is successful, and the root key of the communication gateway is saved;
specifically, the medical equipment operation information processing subsystem further comprises a medical equipment information storage module, a medical equipment operation information decryption module, a medical equipment operation information preprocessing module and a medical equipment maintenance suggestion module;
the medical equipment information storage module is used for storing service life information of the medical equipment, working environment parameter information of the medical equipment and history maintenance information of the medical equipment;
the medical equipment operation information decryption module is used for decrypting the sensor node data transmitted by the communication gateway according to the secret key stored by the server;
the medical equipment operation information preprocessing module is used for preprocessing medical equipment operation information transmitted by the sensor node;
the medical equipment maintenance suggestion module is used for giving maintenance comments of the medical equipment according to the analysis result of the operation information of the medical equipment;
specifically, the medical equipment operation information preprocessing module includes:
medical equipment operation information denoising unit: the medical equipment operation information denoising method comprises the steps of denoising medical equipment operation information acquired by a sensor node;
medical equipment operation information normalization unit: the method is used for carrying out normalization processing on the denoised medical equipment operation information;
referring to fig. 4, specifically, the medical device operation information analysis module includes a medical device operation information analysis policy, where the medical device operation information analysis policy specifically includes the following steps:
s901: calculating the residual service life of the medical equipment according to the service life information of the medical equipment, judging whether the medical equipment needs to be replaced, and if the medical equipment needs to be replaced, sending a medical equipment replacement prompt to a medical equipment purchasing department of a hospital by a service end;
s902: according to the medical equipment wear coefficient that the wear measurement sensor gathered, inspect medical equipment wearing parts and consumptive material, medical equipment wearing parts and consumptive material change standard calculation formula is:
wherein R is s Represents the standard of changing wearing parts and consumable parts of medical equipment, eta 1 The method comprises the steps that the abrasion coefficient of the medical equipment collected by an abrasion measurement sensor is represented, eta represents the rated abrasion coefficient of the medical equipment, when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 0, the vulnerable part and consumable parts of the medical equipment are not required to be replaced temporarily, when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 1, a server sends early warning of abrasion of the vulnerable part and consumable parts of the medical equipment to a medical equipment maintenance department, and when the replacement standard of the vulnerable part and consumable parts of the medical equipment is equal to 2, the server sends prompt of replacement of the vulnerable part and consumable parts of the medical equipment to the medical equipment maintenance department;
s903: according to the medical equipment operation time, the medical equipment operation environment temperature, the medical equipment operation environment humidity and the medical equipment operation energy use acquired by the sensor nodes, calculating a medical equipment operation maintenance requirement score, judging whether the medical equipment needs maintenance according to the medical equipment operation maintenance requirement score, wherein a calculation formula of the medical equipment operation maintenance requirement score is as follows:
wherein G represents a medical equipment operation and maintenance requirement score, t represents medical equipment operation time acquired by a sensor node, and t d Representing the rated operating time of the medical equipment, T represents the operating environment temperature of the medical equipment acquired by the sensor node, T d Representing the rated operating temperature of the medical equipment, W represents the operating environment humidity of the medical equipment collected by the sensor node, and W d Representing rated operating humidity of medical equipment, P representing operating energy of medical equipment collected by sensor nodes, and P d Indicating the rated operating energy, ω, of the medical device t Indicating the impact factor, omega, of the medical device operation time on the medical device operation maintenance T Indicating the influence factor omega of the operating environment temperature of the medical equipment on the operation and maintenance of the medical equipment W Indicating the influence factor omega of the humidity of the medical equipment operation environment on the operation and maintenance of the medical equipment P Representing the influence factor of the operation energy of the medical equipment on the operation maintenance of the medical equipment, c 1 、c 2 、c 3 And c 4 Represents a constant greater than 0, avoiding zero denominator, c 1 、c 2 、c 3 And c 4 Can be obtained by a person skilled in the art through a number of experimental fits;
specifically, the medical equipment maintenance suggestion module comprises a medical equipment daily maintenance unit and a medical equipment preventive maintenance unit;
the medical equipment daily maintenance unit is used for coordinating the daily maintenance time of the medical equipment according to the daily operation state of the medical equipment and the utilization rate of the medical equipment;
the medical equipment preventive maintenance unit is used for carrying out targeted maintenance on the medical equipment according to the medical equipment operation maintenance requirement score.
Example 2:
referring to fig. 5, an embodiment of the present invention is provided: a session key update policy for a root key update of the communication gateway;
the session key is a key used when the communication gateway communicates with the server and transmits data, in order to protect the safety of operation information of the medical equipment, the key used by the session is updated after a period of time, when a new session key is generated by updating, the communication gateway and the server respectively use the current session key and add a random factor to calculate, wherein the random factor is calculated by the sum of two random numbers generated by the communication gateway, when the two parties mutually confirm to generate the new session key, the current session key is replaced, and a three-way handshake mechanism is adopted in the updating process of the session key to ensure that the two parties synchronously update the session key.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The medical equipment cloud management maintenance system based on the Internet of things is characterized by comprising a medical equipment monitoring subsystem, a medical equipment operation information transmission subsystem and a medical equipment operation information processing subsystem;
the medical equipment monitoring subsystem is used for collecting medical equipment operation information according to sensor nodes deployed near the medical equipment;
the medical equipment operation information transmission subsystem is used for transmitting the encrypted medical equipment operation information to the server;
the medical equipment operation information processing subsystem is used for decrypting the transmitted medical equipment operation information, processing and analyzing the medical equipment operation information and sending maintenance information through the server;
the medical equipment operation information transmission subsystem comprises a communication gateway registration module, wherein the communication gateway registration module is used for generating identity information of a communication gateway according to a communication gateway registration strategy and sending the identity information to a server for backup;
the medical equipment operation information processing subsystem comprises a medical equipment operation information analysis module, wherein the medical equipment operation information analysis module is used for analyzing the operation state of the medical equipment according to a medical equipment operation information analysis strategy.
2. The medical equipment cloud management and maintenance system based on the internet of things according to claim 1, wherein the medical equipment monitoring subsystem comprises a sensor node module and a communication gateway module;
the sensor node module is used for placing a sensor for monitoring the medical equipment and acquiring medical equipment operation information, wherein the medical equipment operation information comprises medical equipment operation time, medical equipment operation environment temperature, medical equipment operation environment humidity, medical equipment operation energy use, medical equipment accessory loss and medical equipment daily maintenance information;
the communication gateway module is used for verifying the identity of the sensor node and collecting the medical equipment operation information collected by the sensor node.
3. The medical device cloud management and maintenance system based on the internet of things of claim 2, wherein the sensor node module comprises:
sensor node placement unit: for positioning the sensor node according to the working environment of the medical device;
time sensor: for collecting whether the medical device is operational and the operational time of the medical device;
temperature sensor: the system comprises a control unit, a control unit and a control unit, wherein the control unit is used for collecting the operating environment temperature of the operation of medical equipment;
humidity sensor: the working environment humidity acquisition module is used for acquiring the working environment humidity of the operation of the medical equipment;
energy detection sensor: the system is used for collecting the energy use condition of the operation of the medical equipment;
wear measurement sensor: the method comprises the steps of acquiring loss coefficients of medical equipment accessories;
a data transmission period setting unit: the method is used for presetting a time interval for transmitting data by the sensor node and converging the data to the communication gateway module.
4. The medical device cloud management and maintenance system based on the internet of things according to claim 3, wherein the communication gateway module comprises:
identity authentication unit: the method comprises the steps of verifying the identity of a sensor node and filtering illegal nodes;
node disconnection warning unit: and the sensor node is used for sending alarm information when the sensor node is disconnected with the communication gateway.
5. The medical equipment cloud management and maintenance system based on the internet of things according to claim 4, wherein the medical equipment operation information transmission subsystem further comprises an information encryption module and a session key updating module;
the information encryption module is used for encrypting the transmitted medical equipment operation information and encrypting the medical equipment operation information collected by the sensor node according to the root key of the communication gateway;
the session key updating module is used for updating a key used when the gateway communicates with the server and transmits the operation information of the medical equipment.
6. The cloud management and maintenance system of medical equipment based on the internet of things according to claim 5, wherein the communication gateway registration module comprises a communication gateway registration policy, and the specific steps of the communication gateway registration policy are as follows:
s601: the communication gateway sends the identity information to the server according to the preset node number;
s602: the server receives the identity information sent by the communication gateway, inquires the identity information of the communication gateway in a local gateway list, and if the identity information is not inquired, the server sends confirmation information to the communication gateway, and the server adds the identity information of the communication gateway into the local gateway list after the communication gateway confirms the identity information;
s603: generating a random number, and calculating a root key of the communication gateway according to the random number, the identity information of the communication gateway and a system master key of a server, wherein a root key calculation formula of the communication gateway is as follows:
O G ＝-nK+(m+e)mod2 r ,m、n∈ID G ，
wherein O is G Root key representing communication gateway, ID G Representing identity information of the communication gateway, m and n representing any number of digits in the identity information of the communication gateway, K representing a system master key of the server, (m+e) mod2 r Pair 2 representing the sum of any bit number and random error in the identity information of the communication gateway r Taking the remainder, e represents a random error, and r represents a random number;
s604: the server encrypts the identity information of the communication gateway and the root key by using the shared key, and sends the ciphertext to the communication gateway;
s605: the communication gateway receives the ciphertext sent by the server, decrypts the ciphertext according to the shared key to obtain the communication gateway identity information and the root key, judges whether the communication gateway identity information sent by the server is identical to the locally stored identity information, if not, the registration fails, the steps are repeated, if so, the registration is successful, and the root key of the communication gateway is saved.
7. The medical equipment cloud management and maintenance system based on the internet of things according to claim 6, wherein the medical equipment operation information processing subsystem further comprises a medical equipment information storage module, a medical equipment operation information decryption module, a medical equipment operation information preprocessing module and a medical equipment maintenance suggestion module;
the medical equipment information storage module is used for storing service life information of the medical equipment, working environment parameter information of the medical equipment and history maintenance information of the medical equipment;
the medical equipment operation information decryption module is used for decrypting the sensor node data transmitted by the communication gateway according to the secret key stored by the server;
the medical equipment operation information preprocessing module is used for preprocessing medical equipment operation information transmitted by the sensor node;
the medical equipment maintenance suggestion module is used for giving maintenance comments of the medical equipment according to the analysis result of the operation information of the medical equipment.
8. The medical device cloud management and maintenance system based on the internet of things of claim 7, wherein the medical device operation information preprocessing module comprises:
medical equipment operation information denoising unit: the medical equipment operation information denoising method comprises the steps of denoising medical equipment operation information acquired by a sensor node;
medical equipment operation information normalization unit: the method is used for carrying out normalization processing on the denoised medical equipment operation information.
9. The medical equipment cloud management maintenance system based on the internet of things according to claim 8, wherein the medical equipment operation information analysis module comprises a medical equipment operation information analysis strategy, and the medical equipment operation information analysis strategy specifically comprises the following steps:
s901: calculating the residual service life of the medical equipment according to the service life information of the medical equipment, judging whether the medical equipment needs to be replaced, and if the medical equipment needs to be replaced, sending a medical equipment replacement prompt to a medical equipment purchasing department of a hospital by a service end;
s902: according to the medical equipment wear coefficient that the wear measurement sensor gathered, inspect medical equipment wearing parts and consumptive material, medical equipment wearing parts and consumptive material change standard calculation formula is:
wherein R is s Represents the standard of changing wearing parts and consumable parts of medical equipment, eta 1 The method comprises the steps that the wear coefficient of the medical equipment collected by a wear measurement sensor is represented, eta represents the rated wear coefficient of the medical equipment, when the replacement standard of the vulnerable part and the consumable of the medical equipment is equal to 0, the vulnerable part and the consumable of the medical equipment are not required to be replaced temporarily, when the replacement standard of the vulnerable part and the consumable of the medical equipment is equal to 1, the server sends early warning of the wear of the vulnerable part and the consumable of the medical equipment to a medical equipment maintenance department, and when the replacement standard of the vulnerable part and the consumable of the medical equipment is equal to 12, the server sends the quick-wear parts and consumable replacement reminding of the medical equipment to the medical equipment maintenance department;
s903: according to the medical equipment operation time, the medical equipment operation environment temperature, the medical equipment operation environment humidity and the medical equipment operation energy use acquired by the sensor nodes, calculating a medical equipment operation maintenance requirement score, judging whether the medical equipment needs maintenance according to the medical equipment operation maintenance requirement score, wherein a calculation formula of the medical equipment operation maintenance requirement score is as follows:
wherein G represents a medical equipment operation and maintenance requirement score, t represents medical equipment operation time acquired by a sensor node, and t d Representing the rated operating time of the medical equipment, T represents the operating environment temperature of the medical equipment acquired by the sensor node, T d Representing the rated operating temperature of the medical equipment, W represents the operating environment humidity of the medical equipment collected by the sensor node, and W d Representing rated operating humidity of medical equipment, P representing operating energy of medical equipment collected by sensor nodes, and P d Indicating the rated operating energy, ω, of the medical device t Indicating the impact factor, omega, of the medical device operation time on the medical device operation maintenance T Indicating the influence factor omega of the operating environment temperature of the medical equipment on the operation and maintenance of the medical equipment W Indicating the influence factor omega of the humidity of the medical equipment operation environment on the operation and maintenance of the medical equipment P Representing the influence factor of the operation energy of the medical equipment on the operation maintenance of the medical equipment, c 1 、c 2 、c 3 And c 4 Indicating a constant greater than 0.
10. The medical equipment cloud management maintenance system based on the internet of things according to claim 9, wherein the medical equipment maintenance suggestion module comprises a medical equipment daily maintenance unit and a medical equipment preventive maintenance unit;
the medical equipment daily maintenance unit is used for coordinating the daily maintenance time of the medical equipment according to the daily operation state of the medical equipment and the utilization rate of the medical equipment;
the medical equipment preventive maintenance unit is used for carrying out targeted maintenance on the medical equipment according to the medical equipment operation maintenance requirement score.
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