Medical material environment parameter monitoring device based on passive multi-channel RFID electronic tag

Through passive multi-channel RFID electronic tag monitoring of the environmental parameters of medical supplies, the problem of insufficient detection of medical supplies storage environment in the existing technology is solved, and the precise analysis and regulation of the storage environment is realized, ensuring the quality and safety of the materials.

CN120452706APending Publication Date: 2025-08-08ANHUI MIDU INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202510308914.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

In the prior art, the medical supplies storage environment parameter monitoring device has shortcomings in analyzing the impact of real-time environment on storage time and environmental abnormality detection, which is difficult to meet the storage needs of medical supplies.

Method used

The environmental parameter monitoring device for medical supplies based on passive multi-channel RFID electronic tags is adopted. By obtaining environmental data, analyzing temperature outliers and fluctuations, using formulas to calculate environmental outliers and temperature fluctuations, determining whether the storage environment is abnormal, and controlling it through the control module.

Benefits of technology

It realizes accurate detection of the storage environment of medical supplies, reduces the occurrence of medical accidents, ensures the effectiveness and stability of materials, reduces waste and losses, and improves the refinement and safety of material management.

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Abstract

The invention belongs to the technical field of cross fusion of an internet of things technology and a medical technology, and provides a medical material environment parameter monitoring device based on a passive multichannel RFID electronic tag, which comprises the steps of processing environment parameters of a target environment, analyzing the influence of a real-time environment on the storage duration of medical materials, and determining the storage duration of the medical materials according to the influence of the real-time environment on the storage duration of the medical materials; whether the real-time environment of the target environment meets the medical material storage requirement or not is analyzed in combination with the storage duration parameters of the medical materials in different environments, and the medical material storage requirement is determined on the basis of collection and processing of the temperature fluctuation parameters and in combination with the storage duration of the medical materials under the related temperature fluctuation condition. The method analyzes the influence of the real-time temperature fluctuation of the medical material storage environment on the medical materials, facilitates the detection of the medical material storage environment, facilitates the guarantee of the storage quality of the medical materials, and facilitates the reduction of medical accidents caused by the low storage quality of the medical materials.
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Description

Technical Field

[0001] The present invention belongs to the technical field of medical material environment monitoring, and in particular relates to a device for detecting the storage environment of medical materials and performing parameter analysis. Background Art

[0002] RFID (Radio Frequency Identification) technology, also known as radio frequency identification technology, is a contactless automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. It has the advantages of long recognition distance, fast recognition speed, strong penetration, and strong resistance to environmental interference. Passive RFID electronic tags refer to RFID tags that do not require a built-in power supply. They work by receiving radio frequency energy emitted by the reader. They have the advantages of low cost, small size, and long service life.

[0003] A Chinese patent application with publication number CN113689160A discloses a material management system based on the Internet of Things, including a material monitoring module, an intelligent identification module, an intelligent terminal module, a management module, an environmental monitoring module and a storage module. The present invention uses the material monitoring module, the intelligent identification module, the intelligent terminal module, the management module, the environmental monitoring module and the storage module to perform real-time monitoring, automatic identification, automatic guidance, environmental parameter collection, automatic report generation, and real-time recording, tracking and data storage of materials entering and leaving the warehouse, thereby realizing intelligent and digital material management, changing the previous manual material management methods such as manual recording, regular inspections, and manual inventory, simplifying the operation process, avoiding errors in material data caused by human factors, realizing refined material reserve management, and reducing personnel costs.

[0004] In the above-mentioned existing technologies, there are still deficiencies in processing the environmental parameters of the target environment, analyzing the impact of the real-time environment on the storage time of medical supplies, combining the storage time parameters of medical supplies in different environments, and analyzing whether the real-time environment of the target environment meets the storage needs of medical supplies.

[0005] To this end, the present invention provides a device for detecting the storage environment of medical supplies and performing parameter analysis. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a medical material environmental parameter monitoring device based on passive multi-channel RFID electronic tags. It includes:

[0008] Parameter acquisition module: During the monitoring period, the environmental data of medical supplies is acquired through passive multi-channel RFID electronic tags, where the environmental data includes the ambient temperature value. Based on the processing and analysis of the environmental data, the environmental abnormality value is obtained;

[0009] Environmental analysis module: compares the environmental abnormality value with the environmental abnormality threshold, and determines whether there is any abnormality in the medical supplies environment based on the comparison results;

[0010] Fluctuation parameter acquisition module: Based on the normal medical supplies environment, all temperature parameters are obtained, and a temperature change curve is constructed based on the obtained parameters. After analysis and processing, the temperature fluctuation degree value is obtained;

[0011] Fluctuation analysis module: Compare the obtained temperature fluctuation value with the temperature fluctuation threshold, and determine whether the temperature fluctuation of the medical supplies storage environment is abnormal based on the comparison result.

[0012] As a further technical solution of the present invention, the method for obtaining the environmental abnormal value is:

[0013] The obtained deviation time value PL and temperature deviation degree value CD are processed by data, and the formula is: YC = s1*PL + s2*CD 2 The environmental anomaly value YC is obtained, where s1 and s2 are preset proportional coefficients, s1>s2>0.

[0014] As a further technical solution of the present invention, the deviation duration value and the temperature deviation degree value are obtained in the following manner:

[0015] During the monitoring period, the time period when the temperature deviation signal appears is marked as the temperature deviation period. The duration corresponding to the temperature deviation period is compared with the duration corresponding to the monitoring period to obtain the deviation duration value, which is marked as PL.

[0016] The mean values of the ambient temperatures during all high temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures during all high temperature deviation periods. The relative mean values of the ambient temperatures during all high temperature deviation periods are subtracted from the maximum value within the standard ambient temperature range to obtain the high temperature deviation. The high temperature deviation is then compared with the maximum value within the standard ambient temperature range to obtain the high temperature over-limit ratio.

[0017] The mean values of the ambient temperatures in all low temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures in all low temperature deviation periods. The relative mean values of the ambient temperatures in all low temperature deviation periods are subtracted from the minimum values in the standard ambient temperature range, and the absolute values of the differences are taken to obtain the low temperature deviation. The low temperature deviation is then ratioed to the minimum value in the standard ambient temperature range to obtain the low temperature over-limit ratio.

[0018] The low temperature over-limit ratio and the high temperature over-limit ratio are summed to obtain the temperature deviation value, which is marked as CD.

[0019] As a further technical solution of the present invention, the high temperature deviation period and the low temperature deviation period are obtained in the following manner:

[0020] Obtain all ambient temperature values within the temperature deviation period and sum and average them to obtain the average ambient temperature within the temperature deviation period. Compare the average ambient temperature within the temperature deviation period with the standard ambient temperature range:

[0021] If the average ambient temperature during the temperature deviation period is greater than the maximum value within the standard ambient temperature range, the temperature deviation period is marked as a high temperature deviation period;

[0022] If the average ambient temperature during the temperature deviation period is less than the minimum value within the standard ambient temperature range, the temperature deviation period is marked as a low temperature deviation period.

[0023] As a further technical solution of the present invention, the process of judging whether the medical supplies environment is abnormal based on the comparison results is as follows:

[0024] Compare the environmental anomaly value with the environmental anomaly threshold. The comparison process is:

[0025] If the environmental anomaly value is greater than the environmental anomaly threshold, it means that the medical supplies environment is abnormal;

[0026] If the environmental abnormality value is less than or equal to the environmental abnormality threshold, it means that the medical supplies environment is normal.

[0027] As a further technical solution of the present invention, the temperature fluctuation value is obtained in the following manner:

[0028] The obtained fluctuation degree performance value WF and temperature fluctuation time ratio WS are processed and the formula is used. The temperature fluctuation degree value WA is obtained, wherein g1 and g2 are preset proportional coefficients, g1>g2>0.

[0029] As a further technical solution of the present invention, the temperature fluctuation time ratio is obtained in the following manner:

[0030] Take the average value of all temperature parameters within the monitoring period to obtain the average temperature within the monitoring period;

[0031] During the monitoring period, the difference between the real-time temperature and the average temperature is calculated. The time period when the difference between the real-time temperature and the average temperature is not zero is marked as the temperature fluctuation period; the time period when the difference between the real-time temperature and the average temperature is zero is marked as the temperature stable period; the temperature fluctuation period is compared with the temperature stable period to obtain the temperature fluctuation time ratio, which is marked as WS.

[0032] As a further technical solution of the present invention, the method for obtaining the fluctuation degree performance value is:

[0033] Mark the portion of the temperature change curve corresponding to the temperature fluctuation period as a temperature deviation curve, obtain the maximum vertical distance between the temperature deviation curve and the X-axis, mark it as the deviation distance, obtain the deviation distances in all temperature fluctuation periods, and sum and average them to obtain the mean deviation distance;

[0034] Measure the vertical distance between the baseline and the X-axis, mark it as the reference distance, and compare the mean deviation distance with the reference distance to obtain the fluctuation distance ratio;

[0035] The temperature fluctuation area ratio and the fluctuation distance ratio are summed to obtain the fluctuation degree performance value, which is marked as WF.

[0036] As a further technical solution of the present invention, the temperature fluctuation area ratio is obtained by:

[0037] With time as the X-axis and temperature as the Y-axis, the temperature parameters obtained during the monitoring period are constructed into a temperature change curve. In the constructed temperature change curve, a straight line parallel to the X-axis is drawn based on the average temperature value and marked as the temperature baseline. The area enclosed between the temperature change curve and the temperature baseline, and the area enclosed between the temperature baseline and the X-axis are obtained. The sizes of the two obtained areas are ratioed to obtain the temperature fluctuation area ratio.

[0038] As a further technical solution of the present invention, the process of judging whether the fluctuation of the storage environment of medical supplies is abnormal according to the comparison result is as follows:

[0039] If the temperature fluctuation value is less than or equal to the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is normal;

[0040] If the temperature fluctuation value is greater than the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is abnormal, and an environmental abnormality signal is generated and transmitted to the control module, and the temperature is regulated by the control module; during the process of temperature control by the control module, the target environment is continuously monitored, analyzed, and fed back to the control system until the regulation is completed.

[0041] The beneficial effects of the present invention are as follows:

[0042] 1. During the monitoring period, the environmental data of medical supplies are acquired through passive multi-channel RFID electronic tags, wherein the environmental data includes the ambient temperature value. Based on the processing and analysis of the environmental data, the environmental abnormality value is obtained; the environmental abnormality value is compared with the environmental abnormality threshold value, and whether the medical supply environment is abnormal is determined according to the comparison result; the present invention is based on processing the environmental parameters of the target environment, analyzing the impact of the real-time environment on the storage time of medical supplies, combining the storage time parameters of medical supplies in different environments, analyzing whether the real-time environment of the target environment meets the storage needs of medical supplies, facilitating the detection of the storage environment of medical supplies, and being conducive to ensuring the storage quality of medical supplies and reducing medical accidents caused by low storage quality of medical supplies.

[0043] 2. Based on the normal medical supplies environment, all temperature parameters are obtained, and a temperature change curve is constructed according to the obtained parameters. After analysis and processing, a temperature fluctuation degree value is obtained; the obtained temperature fluctuation degree value is compared with the temperature fluctuation degree threshold, and whether the temperature fluctuation of the medical supplies storage environment is abnormal is judged according to the comparison result; the present invention is based on the collection and processing of temperature fluctuation parameters, combined with the storage time of medical supplies under relevant temperature fluctuation conditions, to analyze the impact of real-time temperature fluctuations in the medical supplies storage environment on medical supplies, which is conducive to ensuring the storage quality of medical supplies and ensuring the effectiveness and stability of medical supplies; it is convenient to inventory and inspect medical supplies, and to promptly discover and deal with expired, deteriorated or damaged supplies to ensure their normal operation and safety; a good and reasonable storage environment is conducive to ensuring that medical supplies can be found and used quickly and accurately when needed; it is conducive to reducing the waste and loss of medical supplies; the medical supplies storage environment has a significant effect on reducing medical accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below with reference to the accompanying drawings.

[0045] Figure 1 This is a module diagram of a medical supplies environmental parameter monitoring device based on a passive multi-channel RFID electronic tag according to an embodiment of the present invention;

[0046] Figure 2 This is a flow chart of the steps for obtaining environmental abnormality values in a medical material environmental parameter monitoring device based on passive multi-channel RFID electronic tags in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0048] Example 1

[0049] like Figure 1 As shown, the medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to the embodiment of the present invention includes:

[0050] Parameter acquisition module: During the monitoring period, the environmental data of medical supplies is acquired through passive multi-channel RFID electronic tags, where the environmental data includes the ambient temperature value. Based on the processing and analysis of the environmental data, the environmental abnormality value is obtained;

[0051] Specifically, the ambient temperature value is compared with the standard ambient temperature range;

[0052] If the ambient temperature value is not within the standard ambient temperature range, a temperature deviation signal is generated;

[0053] If the ambient temperature value is within the standard ambient temperature range, a normal temperature signal is generated;

[0054] During the monitoring period, the time period when the temperature deviation signal appears is marked as the temperature deviation period. The duration corresponding to the temperature deviation period is compared with the duration corresponding to the monitoring period to obtain the deviation duration value, which is marked as PL.

[0055] Obtain all ambient temperature values within the temperature deviation period and sum and average them to obtain the average ambient temperature within the temperature deviation period. Compare the average ambient temperature within the temperature deviation period with the standard ambient temperature range:

[0056] If the average ambient temperature during the temperature deviation period is greater than the maximum value within the standard ambient temperature range, the temperature deviation period is marked as a high temperature deviation period;

[0057] If the average ambient temperature during the temperature deviation period is less than the minimum value within the standard ambient temperature range, the temperature deviation period is marked as a low temperature deviation period;

[0058] The mean values of the ambient temperatures during all high temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures during all high temperature deviation periods. The relative mean values of the ambient temperatures during all high temperature deviation periods are subtracted from the maximum value within the standard ambient temperature range to obtain the high temperature deviation. The high temperature deviation is then compared with the maximum value within the standard ambient temperature range to obtain the high temperature over-limit ratio.

[0059] The mean values of the ambient temperatures in all low temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures in all low temperature deviation periods. The relative mean values of the ambient temperatures in all low temperature deviation periods are subtracted from the minimum values in the standard ambient temperature range, and the absolute values of the differences are taken to obtain the low temperature deviation. The low temperature deviation is then ratioed to the minimum value in the standard ambient temperature range to obtain the low temperature over-limit ratio.

[0060] The low temperature over-limit ratio and the high temperature over-limit ratio are summed to obtain the temperature deviation value, which is marked as CD.

[0061] The obtained deviation time value PL and temperature deviation degree value CD are processed by data, and the formula is: YC = s1*PL + s2*CD 2 Get the environmental anomaly value YC, where s1 and s2 are preset proportional coefficients, s1>s2>0;

[0062] It should be noted that the environmental abnormality value YC represents the change in the environmental parameters of the target environment. The larger the environmental abnormality value YC is, the greater the change in the environmental parameters of the target environment is, the greater the impact on the storage time of medical supplies, and the shorter the storage time of medical supplies.

[0063] Environmental analysis module: compares the environmental abnormality value with the environmental abnormality threshold, and determines whether there is any abnormality in the medical supplies environment based on the comparison results;

[0064] Specifically, the environmental anomaly value is compared with the environmental anomaly threshold. The comparison process is as follows:

[0065] If the environmental anomaly value is greater than the environmental anomaly threshold, it means that the medical supplies environment is abnormal;

[0066] If the environmental abnormality value is less than or equal to the environmental abnormality threshold, it means that the medical supplies environment is normal;

[0067] The technical solution of the embodiment of the present invention is: during the monitoring period, environmental data of medical supplies are obtained through passive multi-channel RFID electronic tags, wherein the environmental data includes the ambient temperature value, and based on the processing and analysis of the environmental data, the environmental abnormality value is obtained; the environmental abnormality value is compared with the environmental abnormality threshold, and whether the medical supply environment is abnormal is judged according to the comparison result; the present invention is based on processing the environmental parameters of the target environment, analyzing the impact of the real-time environment on the storage time of medical supplies, combining the storage time parameters of medical supplies in different environments, and analyzing whether the real-time environment of the target environment meets the storage needs of medical supplies, which is convenient for the detection of the storage environment of medical supplies, is conducive to ensuring the storage quality of medical supplies, and is conducive to reducing medical accidents caused by low storage quality of medical supplies.

[0068] Example 2

[0069] like Figure 1-2 As shown, temperature fluctuations within the normal environment of medical supplies can also cause changes in the degradation rate of drugs. Such fluctuations can shorten the shelf life of drugs or even cause them to lose their effectiveness before their expiration date. Detecting and analyzing fluctuations in environmental parameters, including but not limited to temperature, can provide a better storage environment for medical supplies.

[0070] Based on Example 1, the medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to the embodiment of the present invention includes:

[0071] Fluctuation parameter acquisition module: Based on the normal medical supplies environment, all temperature parameters are obtained, and a temperature change curve is constructed based on the obtained parameters. After analysis and processing, the temperature fluctuation degree value is obtained;

[0072] Take the average value of all temperature parameters within the monitoring period to obtain the average temperature within the monitoring period;

[0073] During the monitoring period, the difference between the real-time temperature and the average temperature is calculated. The time period when the difference between the real-time temperature and the average temperature is not zero is marked as the temperature fluctuation period; the time period when the difference between the real-time temperature and the average temperature is zero is marked as the temperature stable period; the temperature fluctuation period is compared with the temperature stable period to obtain the temperature fluctuation time ratio, which is marked as WS;

[0074] With time as the X-axis and temperature as the Y-axis, the temperature parameters obtained during the monitoring period are constructed into a temperature change curve. In the constructed temperature change curve, a straight line parallel to the X-axis is drawn based on the average temperature value, and is marked as the temperature baseline. The area enclosed between the temperature change curve and the temperature baseline, and the area enclosed between the temperature baseline and the X-axis are obtained. The two obtained areas are then ratioed to obtain the temperature fluctuation area ratio.

[0075] Mark the portion of the temperature change curve corresponding to the temperature fluctuation period as a temperature deviation curve, obtain the maximum vertical distance between the temperature deviation curve and the X-axis, mark it as the deviation distance, obtain the deviation distances in all temperature fluctuation periods, and sum and average them to obtain the mean deviation distance;

[0076] Measure the vertical distance between the baseline and the X-axis, mark it as the reference distance, and compare the mean deviation distance with the reference distance to obtain the fluctuation distance ratio;

[0077] The temperature fluctuation area ratio and the fluctuation distance ratio are summed to obtain the fluctuation degree performance value, which is marked as WF;

[0078] The obtained fluctuation degree performance value WF and temperature fluctuation time ratio WS are processed and the formula is used. The temperature fluctuation value WA is obtained, where g1 and g2 are preset proportional coefficients, g1>g2>0;

[0079] It should be noted that the temperature fluctuation value WA indicates the severity of temperature changes. The larger the temperature fluctuation value WA, the more severe the temperature fluctuation, and the greater the impact on the storage time of medical supplies. The smaller the temperature fluctuation value WA, the smoother the temperature fluctuation, and the smaller the impact on the storage time of medical supplies.

[0080] Fluctuation analysis module: compares the obtained temperature fluctuation value with the temperature fluctuation threshold, and determines whether the temperature fluctuation of the medical supplies storage environment is abnormal based on the comparison result;

[0081] Specifically, if the temperature fluctuation value is less than or equal to the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is not abnormal;

[0082] If the temperature fluctuation value is greater than the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is abnormal; an environmental abnormality signal is generated and transmitted to the control module, and the temperature is regulated by the control module; during the process of temperature control by the control module, the target environment is continuously monitored, analyzed, and fed back to the control system until the regulation is completed;

[0083] The technical solution of the embodiment of the present invention is: based on the normal medical supply environment, all temperature parameters are obtained, a temperature change curve is constructed according to the obtained parameters, and analysis and processing are performed to obtain a temperature fluctuation degree value; the obtained temperature fluctuation degree value is compared with the temperature fluctuation degree threshold, and whether the temperature fluctuation of the medical supply storage environment is abnormal is judged according to the comparison result; based on the collection and processing of temperature fluctuation parameters, the present invention combines the storage time of medical supplies under relevant temperature fluctuation conditions to analyze the impact of real-time temperature fluctuations in the medical supply storage environment on medical supplies, which is conducive to ensuring the storage quality of medical supplies and ensuring the effectiveness and stability of medical supplies; it is convenient to inventory and inspect medical supplies, and timely discover and deal with expired, deteriorated or damaged supplies to ensure their normal operation and safety; a good and reasonable storage environment is conducive to ensuring that medical supplies can be found and used quickly and accurately when needed; it is conducive to reducing the waste and loss of medical supplies; the medical supply storage environment has a significant effect on reducing medical accidents.

[0084] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags, characterized by: include: Parameter acquisition module: During the monitoring period, the environmental data of medical supplies is acquired through passive multi-channel RFID electronic tags, where the environmental data includes the ambient temperature value. Based on the processing and analysis of the environmental data, the environmental abnormality value is obtained; Environmental analysis module: compares environmental abnormality values with environmental abnormality thresholds, and determines whether there is any abnormality in the medical supplies environment based on the comparison results; Fluctuation parameter acquisition module: Based on the normal medical supplies environment, all temperature parameters are obtained, and a temperature change curve is constructed based on the obtained parameters. After analysis and processing, the temperature fluctuation degree value is obtained; Fluctuation analysis module: Compare the obtained temperature fluctuation value with the temperature fluctuation threshold, and determine whether the temperature fluctuation of the medical supplies storage environment is abnormal based on the comparison result.

2. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 1 is characterized in that: The method for obtaining the environmental abnormal value is as follows: The obtained deviation time value PL and temperature deviation degree value CD are processed by data, and the formula is: YC = s1*PL + s2*CD 2 The environmental anomaly value YC is obtained, where s1 and s2 are preset proportional coefficients, s1>s2>0.

3. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 2 is characterized in that: The method for obtaining the deviation duration value and the temperature deviation degree value is as follows: During the monitoring period, the time period when the temperature deviation signal appears is marked as the temperature deviation period. The duration corresponding to the temperature deviation period is compared with the duration corresponding to the monitoring period to obtain the deviation duration value, which is marked as PL. The mean values of the ambient temperatures during all high temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures during all high temperature deviation periods. The relative mean values of the ambient temperatures during all high temperature deviation periods are subtracted from the maximum value within the standard ambient temperature range to obtain the high temperature deviation. The high temperature deviation is then compared with the maximum value within the standard ambient temperature range to obtain the high temperature over-limit ratio. The mean values of the ambient temperatures in all low temperature deviation periods are summed and averaged to obtain the relative mean values of the ambient temperatures in all low temperature deviation periods. The relative mean values of the ambient temperatures in all low temperature deviation periods are subtracted from the minimum values in the standard ambient temperature range, and the absolute values of the differences are taken to obtain the low temperature deviation. The low temperature deviation is then ratioed to the minimum value in the standard ambient temperature range to obtain the low temperature over-limit ratio. The low temperature over-limit ratio and the high temperature over-limit ratio are summed to obtain the temperature deviation value, which is marked as CD.

4. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 3 is characterized by: The high temperature deviation period and the low temperature deviation period are obtained in the following manner: Obtain all ambient temperature values within the temperature deviation period and sum and average them to obtain the average ambient temperature within the temperature deviation period. Compare the average ambient temperature within the temperature deviation period with the standard ambient temperature range: If the average ambient temperature during the temperature deviation period is greater than the maximum value within the standard ambient temperature range, the temperature deviation period is marked as a high temperature deviation period; If the average ambient temperature during the temperature deviation period is less than the minimum value within the standard ambient temperature range, the temperature deviation period is marked as a low temperature deviation period.

5. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 1 is characterized in that: The process of judging whether the medical supplies environment is abnormal based on the comparison results is as follows: Compare the environmental anomaly value with the environmental anomaly threshold. The comparison process is: If the environmental anomaly value is greater than the environmental anomaly threshold, it means that the medical supplies environment is abnormal; If the environmental abnormality value is less than or equal to the environmental abnormality threshold, it means that the medical supplies environment is normal.

6. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 1 is characterized in that: The temperature fluctuation degree value is obtained in the following manner: The obtained fluctuation degree performance value WF and temperature fluctuation time ratio WS are processed and the formula is used. The temperature fluctuation degree value WA is obtained, wherein g1 and g2 are preset proportional coefficients, g1>g2>0.

7. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 6 is characterized in that: The temperature fluctuation time ratio is obtained as follows: Take the average value of all temperature parameters within the monitoring period to obtain the average temperature within the monitoring period; During the monitoring period, the difference between the real-time temperature and the average temperature is calculated. The time period when the difference between the real-time temperature and the average temperature is not zero is marked as the temperature fluctuation period; the time period when the difference between the real-time temperature and the average temperature is zero is marked as the temperature stable period; The temperature fluctuation period is compared with the temperature stable period to obtain the temperature fluctuation time ratio, which is marked as WS.

8. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 6, characterized in that: The method for obtaining the volatility performance value is as follows: Mark the portion of the temperature change curve corresponding to the temperature fluctuation period as a temperature deviation curve, obtain the maximum vertical distance between the temperature deviation curve and the X-axis, mark it as the deviation distance, obtain the deviation distances in all temperature fluctuation periods, and sum and average them to obtain the mean deviation distance; Measure the vertical distance between the baseline and the X-axis, mark it as the reference distance, and compare the mean deviation distance with the reference distance to obtain the fluctuation distance ratio; The temperature fluctuation area ratio and the fluctuation distance ratio are summed to obtain the fluctuation degree performance value, which is marked as WF.

9. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 8, characterized in that: The temperature fluctuation area ratio is obtained as follows: With time as the X-axis and temperature as the Y-axis, the temperature parameters obtained during the monitoring period are constructed into a temperature change curve. In the constructed temperature change curve, a straight line parallel to the X-axis is drawn based on the average temperature value and marked as the temperature baseline. The area enclosed between the temperature change curve and the temperature baseline, and the area enclosed between the temperature baseline and the X-axis are obtained. The sizes of the two obtained areas are ratioed to obtain the temperature fluctuation area ratio.

10. The medical supplies environmental parameter monitoring device based on passive multi-channel RFID electronic tags according to claim 1, characterized in that: The process of judging whether the fluctuation of the storage environment of medical supplies is abnormal based on the comparison results is as follows: If the temperature fluctuation value is less than or equal to the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is normal; If the temperature fluctuation value is greater than the temperature fluctuation threshold, it indicates that the temperature fluctuation of the medical supplies storage environment is abnormal; Generate an environmental abnormality signal and transmit it to the control module, which then controls the temperature; During the temperature control process of the control module, the target environment is continuously monitored, analyzed, and fed back to the control system until the control is completed.

Citation Information

Patent Citations

  • Material management system based on Internet of Things

    CN113689160A