A storage management system for hazardous chemicals based on RFID automatic identification

Abstract

The present invention discloses a storage management system for hazardous chemicals based on RFID automatic identification, which specifically relates to the field of ray identification technology, including an RFID information entry module for hazardous chemicals cabinets, a regional division module for hazardous chemicals cabinets, a cabinet data acquisition module, a cabinet data analysis module, a comprehensive data processing module, a comprehensive data discrimination module, and an early warning module. The present invention can more effectively perform more accurate detection in each sub-area through the regional division of hazardous chemicals cabinets, perform accurate comparison through comprehensive data discrimination, and divide the hazard index into hazard levels, making the discrimination more accurate and intuitive; through early warning, it can timely discover that the storage management system of hazardous chemicals cabinets sends out dangerous signals, and at the same time, the system can realize accurate management and real-time monitoring of chemical reagent bottles, quickly discover and handle problems, ensure the stability and safety of hazardous chemicals cabinets, and ensure the reasonable use and storage of chemicals.

Description

Technical Field

[0001] The present invention relates to the field of ray identification technology, and more specifically, to a storage management system for hazardous chemicals based on RFID automatic identification. Background Art

[0002] With the rise of the Internet of Things and mobile Internet, RFID identification technology has become crucial. RFID (Radio Frequency Identification) is a technology that transmits and identifies information through radio waves and is widely used in the fields of automatic identification and item tracking. RFID systems usually consist of RFID tags, RFID readers, and antennas.

[0003] The existing hazardous chemical storage management system mainly includes a data acquisition module, a data analysis module, a discrimination module and a feedback module; the data acquisition module mainly collects data of some hazardous chemicals through existing tools; the data analysis module converts non-digital parameters into digitized parameters for data analysis, making system analysis more convenient; the discrimination module accurately compares the existing data with the evaluation data of previous years to obtain the final value, and finally illustrates the safety and reliability of the system; the feedback module sends a corresponding feedback signal through the final value in the discrimination module.

[0004] However, it still has some shortcomings in actual use. For example, in data collection, some data is collected, which may lead to incomplete data; in data analysis, the collected data is analyzed and processed, but when the existing technology analyzes and processes large amounts of data, errors and data loss may occur, and isolated islands may occur, which reduces the accuracy of hazardous chemical storage management data; the existing methods lack a comprehensive mathematical model to judge hazardous chemical storage management data, which makes the analysis less intuitive and efficient, increases manpower, material resources and consumption, and brings inconvenience to Internet of Things companies.

[0005] There is an urgent need for a hazardous chemical storage management system based on RFID automatic identification. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a hazardous chemical storage management system based on RFID automatic identification, which solves the problems raised in the above-mentioned background technology by using the field of ray identification technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a storage management system for hazardous chemicals based on RFID automatic identification, comprising:

[0008] Hazardous chemicals cabinet RFID information entry module: used to record the usage information of RFID tags and antennas in the internal area of ​​the target hazardous chemicals cabinet through the macrofilm camera and store it in the database;

[0009] Hazardous chemicals cabinet area division module: used to determine the internal area of ​​the target hazardous chemicals cabinet as the target area, divide the target area into sub-areas according to the equal volume division method, and number the sub-areas in the target area as i=1, 2, ..., n in sequence;

[0010] Cabinet data collection module: used to collect various types of data in a sub-area of ​​the target area, and transmit the collected data to the cabinet data analysis module; collect data of each sub-area through the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit; the RFID system performance data collection unit is used to collect RFID tag performance data and RFID reader performance data of each sub-area; the hazardous chemicals cabinet performance data collection unit is used to collect cabinet characteristic data, hazardous chemical flow data and storage environment data of each sub-area;

[0011] Cabinet data analysis module: including an RFID system performance data calculation unit and a hazardous chemicals cabinet performance data calculation unit, used to analyze the data transmitted by the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit, and transmit the analysis results to the comprehensive data processing module; the RFID system performance data calculation unit is used to analyze various types of data transmitted by the RFID system performance data collection unit, and transmit the analysis results to the comprehensive data processing module; the RFID system performance data calculation unit includes an RFID tag performance data calculation subunit and an RFID reader performance data calculation subunit; the hazardous chemicals cabinet performance data calculation unit is used to analyze various types of data transmitted by the hazardous chemicals cabinet performance data collection unit, and transmit the analysis results to the comprehensive data processing module; the hazardous chemicals cabinet performance data calculation unit includes a cabinet characteristic data calculation subunit, a hazardous chemicals circulation data calculation subunit and a storage environment data calculation subunit;

[0012] Comprehensive data processing module: used to establish a comprehensive data processing model, import the data transmitted by the cabinet data analysis module into the comprehensive data processing model, calculate the risk assessment value of hazardous chemicals in the target area, and transmit it to the comprehensive data identification module;

[0013] The comprehensive data identification module is used to accurately compare the risk assessment value of hazardous chemicals in the target area with the risk assessment value of hazardous chemicals in the preset target area in the actual process, and transmit the judgment result to the early warning module;

[0014] Early warning module: used to receive the data transmitted by the comprehensive data identification module and send corresponding early warning signals to relevant management personnel for processing.

[0015] Preferably, the RFID tag performance data includes the distance of reading the tag, the RFID tag energy efficiency, the reading speed and the tag data capacity, which are respectively recorded as Bs, Bj, Bv and Bg; the RFID reader performance data includes the multi-tag read-write conflict rate, the signal strength of the reader and the tag recognition success rate, which are respectively recorded as Rc, Rx and Rs; the cabinet characteristic data includes the mass of hazardous chemicals, the waste liquid volume change rate in the waste liquid collection area, the corrosion area inside the cabinet and the number of cabinet collision alarms, which are respectively recorded as Gm, Gf, Gs and Gb; the hazardous chemical circulation data includes the number of storage location changes, the production date of hazardous chemicals, the validity period of hazardous chemicals, and the inspection cycle of hazardous chemicals, which are respectively recorded as Wb, Wc, Wy and Wt; the storage environment data includes the temperature value inside the cabinet, the water molecule concentration inside the cabinet, the electromagnetic intensity inside the cabinet and the light intensity inside the cabinet, which are respectively recorded as Hc, Hs, Hq and Hg.

[0016] Preferably, the RFID tag performance data calculation subunit is used to establish an RFID tag performance data mathematical model, import the RFID tag performance data transmitted by the RFID system data acquisition unit into the RFID tag performance data mathematical model, and calculate the RFID tag performance coefficient value of each sub-area, which is specifically expressed as: , B.A. i represents the RFID tag performance coefficient value of the i-th sub-area, Bs i Indicates the distance of the read tag in the ith sub-area, Bs max Indicates the maximum distance of the tag to be read in the target area, Bj i represents the RFID tag energy efficiency of the i-th sub-region, Bv i-1 Indicates the reading speed of the i-1th sub-area, Bv i represents the reading speed of the ith sub-region, Bg i represents the label data capacity of the ith sub-region, Bg max It represents the label data capacity of the target area, and n represents the number of sub-areas.

[0017] Preferably, the RFID reader performance data calculation subunit is used to establish an RFID reader performance data mathematical model, import the RFID reader performance data transmitted by the RFID system data acquisition unit into the RFID reader performance data mathematical model, and calculate the RFID reader performance coefficient value of each sub-area, which is specifically expressed as: , R.A. iRepresents the RFID reader performance coefficient value of the i-th sub-area, Rc i represents the multi-tag read / write conflict rate of the ith sub-area, Rx i-1 Represents the signal strength of the reader / writer in the i-1th sub-area, Rx i Represents the signal strength of the reader in the ith sub-area, Rs i represents the tag recognition success rate of the ith sub-area, n represents the number of sub-areas, and a represents the fitting parameter value of the signal strength of the reader, which ranges from [1,1.8).

[0018] Preferably, the cabinet characteristic data calculation subunit is used to establish a cabinet characteristic data mathematical model, import the cabinet characteristic data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the cabinet characteristic data mathematical model, and calculate the cabinet characteristic coefficient value of each sub-area, which is specifically expressed as: , G.A. i Indicates the cabinet characteristic coefficient value of the ith sub-area, Gm i-1 Gm represents the mass of hazardous chemicals in the i-1th sub-area. i represents the mass of hazardous chemicals in the ith sub-region, Gf all Indicates the waste liquid volume change rate in the waste liquid collection area of ​​the target area, Gs i Gs represents the corrosion area inside the cabinet of the ith sub-area. sta represents the initial area of ​​the cabinet in the target area, Gb i-1 Indicates the number of cabinet collision alarms in the i-1th sub-area, Gb i It indicates the number of cabinet collision alarms in the ith sub-area, and n indicates the number of sub-areas.

[0019] Preferably, the hazardous chemical circulation data calculation subunit is used to establish a hazardous chemical circulation data mathematical model, import the hazardous chemical circulation data transmitted by the hazardous chemical cabinet performance data acquisition unit into the hazardous chemical circulation complex data mathematical model, and calculate the hazardous chemical circulation coefficient value of each sub-area, which is specifically expressed as: , W.A. i represents the hazardous chemical turnover coefficient value of the ith sub-area, Wy i represents the validity period of hazardous chemicals in the ith sub-area, Wc i represents the production date of hazardous chemicals in the ith sub-area, Wt i represents the validity period of hazardous chemicals in the ith sub-area, Wb i It indicates the number of times the storage location of the i-th sub-region changes, and n indicates the number of sub-regions.

[0020] Preferably, the storage environment data calculation subunit is used to establish a storage environment data mathematical model, import the storage environment data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the storage environment data mathematical model, and calculate the storage environment data coefficient value of each sub-area, which is specifically expressed as:

[0021] , HA i Represents the storage environment coefficient value of the i-th sub-area, Hc i Indicates the internal temperature value of the cabinet in the ith sub-area, Hc max Indicates the maximum cabinet internal temperature in the target area, Hs i-1 Hs represents the water molecule concentration inside the cabinet in the i-1th sub-area. i represents the water molecule concentration inside the cabinet of the ith sub-area, Hq i represents the electromagnetic intensity inside the cabinet of the ith sub-area, Hq max Indicates the maximum electromagnetic intensity inside the cabinet in the target area, Hg i-1 Represents the light intensity inside the cabinet of the i-1th sub-area, Hg i represents the light intensity inside the cabinet in the ith sub-area, n represents the number of sub-areas, and b represents the fitting parameter value of the temperature inside the cabinet, which ranges from [1,2).

[0022] Preferably, the comprehensive data processing model is obtained in the following manner: ,in represents the risk assessment value of hazardous chemicals in the target area, α i represents the RFID system characteristic value of the i-th sub-area, β i represents the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, λ i represents the risk assessment value of hazardous chemicals in the i-th sub-area, μ represents the mean of the risk assessment values ​​of hazardous chemicals in the target area, where i=1, 2,…, n.

[0023] Preferably, the risk assessment value of hazardous chemicals in the preset target area is recorded as η def , the risk assessment value of hazardous chemicals in the target area is accurately compared with the risk assessment value of hazardous chemicals in the preset target area during the actual operation. The specific calculation formula is: , L risk Indicates the risk index of the target area. According to the risk index L of the target area risk When L risk ≤0.2, it means that the hazardous chemical cabinet is in a safe state. risk When >0.2, it means that the hazardous chemical cabinet is in a dangerous state.

[0024] Technical effects and advantages of the present invention:

[0025] The present invention can more effectively perform more accurate detection in each sub-area through the hazardous chemical cabinet area division module, thereby improving the overall efficiency and convenient management of the hazardous chemical cabinet. The management personnel can more intuitively understand the detailed status of the hazardous chemical cabinets in each area, discover problems in time and take measures to solve them; through the cabinet data acquisition module, various types of detailed and accurate data of the hazardous chemical cabinet can be obtained, which greatly reduces errors and improves the accuracy of the hazardous chemical cabinet;

[0026] The present invention establishes a mathematical model through the cabinet data analysis module to conduct in-depth analysis of the collected data. These analyses are conducive to identifying potential dangerous problems of hazardous chemical cabinets and provide an important basis for the subsequent system to realize the analysis of hazardous chemical cabinets; a comprehensive data processing model is established through the comprehensive data processing module, and the data transmitted by the cabinet data analysis module is imported into the comprehensive data processing model to calculate the risk assessment value of hazardous chemicals in the target area, so that the storage management system of hazardous chemicals makes the data more concise and makes people more convenient and intuitive;

[0027] The present invention uses a comprehensive data identification module to accurately compare the risk assessment value of hazardous chemicals in the target area with the risk assessment value of hazardous chemicals in the preset target area in the actual process, and divides the risk index into dangerous levels, so that the identification is more accurate and intuitive; through the early warning module, it can timely discover the danger signal sent by the storage management system of the hazardous chemicals cabinet, and at the same time, the system can realize the accurate management and real-time monitoring of chemical reagent bottles, quickly discover and deal with problems, ensure the stability and safety of the hazardous chemicals cabinet, and ensure the reasonable use and storage of chemicals; BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1 Shown in the figure is a hazardous chemical storage management system based on RFID automatic identification, including a hazardous chemical cabinet RFID information entry module, a hazardous chemical cabinet area division module, a cabinet data collection module, a cabinet data analysis module, a comprehensive data processing module, a comprehensive data judgment module and an early warning module.

[0031] The output end of the hazardous chemicals cabinet RFID information entry module is connected to the input end of the hazardous chemicals cabinet area division module, the output end of the hazardous chemicals cabinet area division module is connected to the input end of the cabinet data acquisition module, the output end of the cabinet data acquisition module is connected to the input end of the cabinet data analysis module, the output end of the cabinet data analysis module is connected to the input end of the comprehensive data processing module, the output end of the comprehensive data processing module is connected to the input end of the comprehensive data identification module, and the output end of the comprehensive data identification module is connected to the input end of the early warning module.

[0032] The hazardous chemicals cabinet RFID information entry module is used to record the usage information of the RFID tags and antennas in the internal area of ​​the target hazardous chemicals cabinet through a macrofilm camera and store it in a database.

[0033] In this embodiment, it should be specifically noted that the hazardous chemicals cabinet refers to an intelligent cabinet for hazardous chemicals.

[0034] The hazardous chemicals cabinet area division module is used to determine the internal area of ​​the target hazardous chemicals cabinet as the target area, divide the target area into sub-areas according to an equal volume division method, and number the sub-areas in the target area as i=1, 2, ..., n in sequence.

[0035] In this embodiment, it is specifically necessary to explain that two or more macrofilm cameras are installed in the hardware equipment of the target hazardous chemicals cabinet, the volume is calculated by comparing the parallax between the images taken by the two cameras, and the appropriate volume division accuracy is selected according to the actual needs of the target hazardous chemicals cabinet, including a length, width and height of 5*5*5, a length, width and height of 10*10*10, and a length, width and height of 15*15*15, where the unit is millimeter.

[0036] The cabinet data collection module is used to collect various types of data in a sub-area divided into the target area, and transmit the collected data to the cabinet data analysis module; the data of each sub-area is collected through the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit.

[0037] The RFID system performance data collection unit is used to collect the RFID tag performance data and the RFID reader performance data of each sub-area.

[0038] In this embodiment, it should be specifically explained that the RFID tag performance data includes the reading distance of the tag, the RFID tag energy efficiency, the reading speed and the tag data capacity, which are respectively denoted as Bs, Bj, Bv and Bg; the RFID reader performance data includes the multi-tag read / write conflict rate, the signal strength of the reader and the tag recognition success rate, which are respectively denoted as Rc, Rx and Rs.

[0039] The acquisition tool corresponding to the distance of reading the tag is a spectrum analyzer, which is installed in the test environment where the reader and the tag are located. RFID tag energy efficiency: the acquisition tool is an energy monitoring device such as a power meter, which is installed on the connection line between the tag and the reader or close to the tag. Reading speed: the acquisition tool is a supporting or special software tool for the reader, which is installed on the computer connected to the reader. Tag data capacity: the acquisition tool is the configuration and management software of the reader, which is installed on the computer connected to the reader; multi-tag read and write conflict rate: the acquisition tool is a professional testing equipment, which is installed in the test environment where the reader and multiple tags are located. The signal strength of the reader: the acquisition tool is a field strength meter, which is installed within the signal coverage of the reader. Tag recognition success rate: the acquisition tool is a reader, which is installed on the computer connected to the reader.

[0040] The hazardous chemicals cabinet performance data collection unit is used to collect cabinet characteristic data, hazardous chemicals flow data and storage environment data of each sub-area.

[0041] In this embodiment, it is specifically necessary to explain that the cabinet characteristic data includes the mass of hazardous chemicals, the waste liquid volume change rate of the waste liquid collection area, the corrosion area inside the cabinet, and the number of cabinet collision alarms, which are respectively recorded as Gm, Gf, Gs, and Gb; the hazardous chemical circulation data includes the number of storage position changes, the production date of hazardous chemicals, the validity period of hazardous chemicals, and the inspection cycle of hazardous chemicals, which are respectively recorded as Wb, Wc, Wy, and Wt; the storage environment data includes the temperature value inside the cabinet, the water molecule concentration inside the cabinet, the electromagnetic intensity inside the cabinet, and the light intensity inside the cabinet, which are respectively recorded as Hc, Hs, Hq, and Hg;

[0042] The mass of the hazardous chemicals: the collection tool is a weighing sensor, installed on the lower structure of the cabinet, the waste liquid volume change rate in the waste liquid collection area: the collection tool is a liquid level sensor, installed in the waste liquid collection area, the corrosion area inside the cabinet: the collection tool is an image acquisition device combined with image processing software, installed in a suitable position inside the cabinet, the number of cabinet collision alarms: the collection tool is a collision sensor and an alarm system, installed on the outer surface and internal key structures of the cabinet; the number of storage position changes: the collection tool is a position tracking sensor, installed on the cabinet for storing hazardous chemicals, the production date of hazardous chemicals: the collection tool is a special barcode scanning gun, and the installation position has no fixed Certain requirements, carried and used by operators, validity period of hazardous chemicals: the collection tool is a database management system, entered manually, and there is no specific installation location, inspection period of hazardous chemicals: the collection tool is a system setting module, set in the management system, and there is no actual physical installation location; temperature value inside the cabinet: the collection tool is a temperature sensor, installed at different positions inside the cabinet, water molecule concentration inside the cabinet: the collection tool is a humidity sensor, installed inside the cabinet, electromagnetic intensity inside the cabinet: the collection tool is an electromagnetic intensity detector, installed inside the cabinet, light intensity inside the cabinet: the collection tool is a light intensity sensor, installed inside the cabinet.

[0043] The cabinet data analysis module includes an RFID system performance data calculation unit and a hazardous chemicals cabinet performance data calculation unit, which are used to analyze the data transmitted by the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit, and transmit the analysis results to the comprehensive data processing module.

[0044] The RFID system performance data calculation unit is used to analyze various types of data transmitted by the RFID system performance data acquisition unit, and transmit the analysis results to the comprehensive data processing module; the RFID system performance data calculation unit includes an RFID tag performance data calculation subunit and an RFID reader performance data calculation subunit.

[0045] In this embodiment, it should be specifically explained that the RFID tag performance data calculation subunit is used to establish an RFID tag performance data mathematical model, import the RFID tag performance data transmitted by the RFID system data acquisition unit into the RFID tag performance data mathematical model, and calculate the RFID tag performance coefficient value of each sub-area, which is specifically expressed as: , B.A. i represents the RFID tag performance coefficient value of the i-th sub-area, Bs i Indicates the distance of the read tag in the ith sub-area, Bs max Indicates the maximum distance of the tag to be read in the target area, Bj i represents the RFID tag energy efficiency of the i-th sub-region, Bvi-1 Indicates the reading speed of the i-1th sub-area, Bv i represents the reading speed of the ith sub-region, Bg i represents the label data capacity of the ith sub-region, Bg max It represents the label data capacity of the target area, and n represents the number of sub-areas.

[0046] In this embodiment, it should be specifically explained that the RFID reader performance data calculation subunit is used to establish an RFID reader performance data mathematical model, import the RFID reader performance data transmitted by the RFID system data acquisition unit into the RFID reader performance data mathematical model, and calculate the RFID reader performance coefficient value of each sub-area, which is specifically expressed as: , R.A. i Represents the RFID reader performance coefficient value of the i-th sub-area, Rc i represents the multi-tag read / write conflict rate of the ith sub-area, Rx i-1 Represents the signal strength of the reader / writer in the i-1th sub-area, Rx i Represents the signal strength of the reader in the ith sub-area, Rs i represents the tag recognition success rate of the ith sub-area, n represents the number of sub-areas, and a represents the fitting parameter value of the signal strength of the reader, which ranges from [1,1.8).

[0047] The RFID system data acquisition unit establishes a mathematical model of RFID system data through the RFID tag performance coefficient value of the i-th sub-area and the RFID reader performance coefficient value of the i-th sub-area to obtain the RFID system characteristic value of the i-th sub-area, which is specifically expressed as: , B.A. i represents the RFID tag performance coefficient value of the i-th sub-area, RA i represents the performance coefficient of the RFID reader in the i-th sub-area, α i represents the RFID system characteristic value of the i-th sub-area, ρ i Represents the fitting coefficient of the RFID system eigenvalue.

[0048] The hazardous chemicals cabinet performance data calculation unit is used to analyze various types of data transmitted by the hazardous chemicals cabinet performance data acquisition unit, and transmit the analysis results to the comprehensive data processing module; the hazardous chemicals cabinet performance data calculation unit includes a cabinet characteristic data calculation subunit, a hazardous chemical flow data calculation subunit and a storage environment data calculation subunit.

[0049] In this embodiment, it should be specifically explained that the cabinet characteristic data calculation subunit is used to establish a cabinet characteristic data mathematical model, import the cabinet characteristic data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the cabinet characteristic data mathematical model, and calculate the cabinet characteristic coefficient value of each sub-area, which is specifically expressed as: , G.A. i Indicates the cabinet characteristic coefficient value of the ith sub-area, Gm i-1 Gm represents the mass of hazardous chemicals in the i-1th sub-area. i represents the mass of hazardous chemicals in the ith sub-region, Gf all Indicates the waste liquid volume change rate in the waste liquid collection area of ​​the target area, Gs i Gs represents the corrosion area inside the cabinet of the ith sub-area. sta represents the initial area of ​​the cabinet in the target area, Gb i-1 Indicates the number of cabinet collision alarms in the i-1th sub-area, Gb i It indicates the number of cabinet collision alarms in the ith sub-area, and n indicates the number of sub-areas.

[0050] In this embodiment, it should be specifically explained that the hazardous chemical circulation data calculation subunit is used to establish a hazardous chemical circulation data mathematical model, import the hazardous chemical circulation data transmitted by the hazardous chemical cabinet performance data acquisition unit into the hazardous chemical circulation complex data mathematical model, and calculate the hazardous chemical circulation coefficient value of each sub-area, which is specifically expressed as: , W.A. i represents the hazardous chemical turnover coefficient value of the ith sub-area, Wy i represents the validity period of hazardous chemicals in the ith sub-area, Wc i represents the production date of hazardous chemicals in the ith sub-area, Wt i represents the validity period of hazardous chemicals in the ith sub-area, Wb i It indicates the number of times the storage location of the i-th sub-region changes, and n indicates the number of sub-regions.

[0051] In this embodiment, it is specifically necessary to explain that the storage environment data calculation subunit is used to establish a storage environment data mathematical model, import the storage environment data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the storage environment data mathematical model, and calculate the storage environment data coefficient value of each sub-area, which is specifically expressed as: , HA i Represents the storage environment coefficient value of the i-th sub-area, Hc i Indicates the internal temperature value of the cabinet in the ith sub-area, Hc max Indicates the maximum cabinet internal temperature in the target area, Hs i-1Hs represents the water molecule concentration inside the cabinet in the i-1th sub-area. i represents the water molecule concentration inside the cabinet of the ith sub-area, Hq i represents the electromagnetic intensity inside the cabinet of the ith sub-area, Hq max Indicates the maximum electromagnetic intensity inside the cabinet in the target area, Hg i-1 Represents the light intensity inside the cabinet of the i-1th sub-area, Hg i represents the light intensity inside the cabinet in the ith sub-area, n represents the number of sub-areas, and b represents the fitting parameter value of the temperature inside the cabinet, which ranges from [1,2).

[0052] The hazardous chemicals cabinet performance data calculation unit establishes a mathematical model through the cabinet characteristic coefficient value of the i-th sub-area, the hazardous chemical circulation coefficient value of the i-th sub-area, and the storage environment coefficient value of the i-th sub-area to calculate the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, which is specifically expressed as: , G.A. i Indicates the cabinet characteristic coefficient value of the i-th sub-area, WA i Represents the hazardous chemical turnover coefficient value of the ith sub-area, HA i represents the storage environment coefficient value of the i-th sub-area, β i represents the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, and ρ2 represents the fitting coefficient of the characteristic value of the hazardous chemicals cabinet.

[0053] The comprehensive data processing module is used to establish a comprehensive data processing model, import the data transmitted by the cabinet data analysis module into the comprehensive data processing model, calculate the risk assessment value of hazardous chemicals in the target area, and transmit it to the comprehensive data identification module.

[0054] In this embodiment, it should be specifically explained that the method for obtaining the comprehensive data processing model is: ,in represents the risk assessment value of hazardous chemicals in the target area, α i represents the RFID system characteristic value of the i-th sub-area, β i represents the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, λ i represents the risk assessment value of hazardous chemicals in the i-th sub-area, μ represents the mean of the risk assessment values ​​of hazardous chemicals in the target area, where i=1, 2,…, n.

[0055] The comprehensive data identification module is used to accurately compare the risk assessment value of hazardous chemicals in the target area with the risk assessment value of hazardous chemicals in the preset target area in the actual process, and transmit the judgment result to the early warning module.

[0056] <![CDATA[L risk ]]> <![CDATA[L risk =0]]> <![CDATA[0<L risk ≤0.2]]> <![CDATA[0.2<L risk ≤0.6]]> <![CDATA[0.6<L risk ≤1]]> Danger Level Not dangerous Not dangerous Danger Very dangerous .

[0057] According to the risk index L of the target area risk When L risk ≤0.2, it means that the hazardous chemical cabinet is in a safe state. risk When >0.2, it means that the hazardous chemical cabinet is in a dangerous state.

[0058] The early warning module is used to receive the data transmitted by the comprehensive data identification module and send a corresponding early warning signal to relevant management personnel for processing.

[0059] In this embodiment, it should be specifically explained that when the comprehensive data identification module determines that the hazardous chemical cabinet is in a dangerous state, the system will send out a danger signal.

[0060] The present invention can more effectively carry out more accurate detection in each sub-area through the hazardous chemicals cabinet area division module, thereby improving the overall efficiency of the hazardous chemicals cabinet and facilitating management. Managers can more intuitively understand the detailed status of hazardous chemicals cabinets in each area, discover problems in time and take measures to solve them; through the cabinet data acquisition module, detailed and accurate data of various types of hazardous chemicals cabinets can be obtained, which greatly reduces errors and improves the accuracy of hazardous chemicals cabinets; through the cabinet data analysis module, a mathematical model is established to conduct in-depth analysis of the collected data, which is conducive to identifying potential dangerous problems of hazardous chemicals cabinets and provides an important basis for the subsequent system to realize hazardous chemicals cabinet analysis; through the comprehensive data processing module, a comprehensive data processing model is established to convert cabinet data into comprehensive data. The data transmitted by the analysis module is imported into the comprehensive data processing model to calculate the risk assessment value of hazardous chemicals in the target area, so that the hazardous chemicals storage management system makes the data more concise and makes people more convenient and intuitive; the present invention uses the comprehensive data discrimination module to accurately compare the risk assessment value of hazardous chemicals in the target area with the risk assessment value of hazardous chemicals in the preset target area in the actual process, and divides the hazard index into hazard levels to make the discrimination more accurate and intuitive; the early warning module can timely discover the danger signal sent by the hazardous chemicals cabinet storage management system, and at the same time, the system can realize accurate management and real-time monitoring of chemical reagent bottles, quickly discover and deal with problems, ensure the stability and safety of the hazardous chemicals cabinet, and ensure the rational use and storage of chemicals.

[0061] Secondly, in the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A storage management system for hazardous chemicals based on RFID automatic identification, characterized in that: include: Hazardous chemicals cabinet RFID information entry module: used to record the usage information of RFID tags and antennas in the internal area of ​​the target hazardous chemicals cabinet through the macrofilm camera and store it in the database; Hazardous chemicals cabinet area division module: used to determine the internal area of ​​the target hazardous chemicals cabinet as the target area, divide the target area into sub-areas according to equal volume division, and number the sub-areas in the target area as i=1, 2, ..., n in sequence; Cabinet data collection module: used to collect various types of data in a sub-area of ​​the target area division, and transmit the collected various types of data to the cabinet data analysis module; The data of each sub-area is collected by the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit; the RFID system performance data collection unit is used to collect the RFID tag performance data and RFID reader performance data of each sub-area; the hazardous chemicals cabinet performance data collection unit is used to collect the cabinet characteristic data, hazardous chemical flow data and storage environment data of each sub-area; Cabinet data analysis module: including RFID system performance data calculation unit and hazardous chemicals cabinet performance data calculation unit, used to analyze the data transmitted by the RFID system performance data collection unit and the hazardous chemicals cabinet performance data collection unit, and transmit the analysis results to the comprehensive data processing module; The RFID system performance data calculation unit is used to analyze various types of data transmitted by the RFID system performance data acquisition unit, and transmit the analysis results to the comprehensive data processing module; The RFID system performance data calculation unit includes an RFID tag performance data calculation subunit and an RFID reader performance data calculation subunit; the hazardous chemicals cabinet performance data calculation unit is used to analyze various types of data transmitted by the hazardous chemicals cabinet performance data acquisition unit, and transmit the analysis results to the comprehensive data processing module; the hazardous chemicals cabinet performance data calculation unit includes a cabinet characteristic data calculation subunit, a hazardous chemical circulation data calculation subunit and a storage environment data calculation subunit; Comprehensive data processing module: used to establish a comprehensive data processing model, import the data transmitted by the cabinet data analysis module into the comprehensive data processing model, calculate the risk assessment value of hazardous chemicals in the target area, and transmit it to the comprehensive data identification module; Comprehensive data identification module: used to accurately compare the risk assessment value of hazardous chemicals in the target area with the risk assessment value of hazardous chemicals in the preset target area in the actual process, and transmit the judgment result to the early warning module; Early warning module: used to receive the data transmitted by the comprehensive data identification module and send corresponding early warning signals to relevant management personnel for processing; The RFID tag performance data includes the distance of reading the tag, the RFID tag energy efficiency, the reading speed and the tag data capacity, which are respectively recorded as Bs, Bj, Bv and Bg; the RFID reader performance data includes the multi-tag read-write conflict rate, the signal strength of the reader and the tag recognition success rate, which are respectively recorded as Rc, Rx and Rs; the cabinet characteristic data includes the mass of hazardous chemicals, the waste liquid volume change rate in the waste liquid collection area, the corrosion area inside the cabinet and the number of cabinet collision alarms, which are respectively recorded as Gm, Gf, Gs and Gb; the hazardous chemical circulation data includes the number of storage location changes, the production date of hazardous chemicals, the validity period of hazardous chemicals, and the inspection cycle of hazardous chemicals, which are respectively recorded as Wb, Wc, Wy and Wt; the storage environment data includes the temperature value inside the cabinet, the water molecule concentration inside the cabinet, the electromagnetic intensity inside the cabinet and the light intensity inside the cabinet, which are respectively recorded as Hc, Hs, Hq and Hg; The cabinet characteristic data calculation subunit is used to establish a cabinet characteristic data mathematical model, import the cabinet characteristic data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the cabinet characteristic data mathematical model, and calculate the cabinet characteristic coefficient value of each sub-area, which is specifically expressed as: GA i Indicates the cabinet characteristic coefficient value of the ith sub-area, Gm i-1 Gm represents the mass of hazardous chemicals in the i-1th sub-area. i represents the mass of hazardous chemicals in the ith sub-region, Gf all Indicates the waste liquid volume change rate in the waste liquid collection area of ​​the target area, Gs i Gs represents the corrosion area inside the cabinet of the ith sub-area. sta represents the initial area of ​​the cabinet in the target area, Gb i-1 Indicates the number of cabinet collision alarms in the i-1th sub-area, Gb i It indicates the number of cabinet collision alarms in the ith sub-area, and n indicates the number of sub-areas.

2. According to claim 1, a dangerous chemical storage management system based on RFID automatic identification is characterized by: The RFID tag performance data calculation subunit is used to establish an RFID tag performance data mathematical model, import the RFID tag performance data transmitted by the RFID system data acquisition unit into the RFID tag performance data mathematical model, and calculate the RFID tag performance coefficient value of each sub-area, which is specifically expressed as: BA i represents the RFID tag performance coefficient value of the i-th sub-area, Bs i Indicates the distance of the read tag in the ith sub-area, Bs max Indicates the maximum distance of the tag to be read in the target area, Bj i represents the RFID tag energy efficiency of the i-th sub-region, Bv i-1 Indicates the reading speed of the i-1th sub-area, Bv i represents the reading speed of the ith sub-region, Bg i represents the label data capacity of the ith sub-region, Bg max Indicates the maximum value of the label data capacity of the target area, and n indicates the number of sub-areas.

3. The storage and management system for hazardous chemicals based on RFID automatic identification according to claim 1 is characterized by: The RFID reader performance data calculation subunit is used to establish an RFID reader performance data mathematical model, import the RFID reader performance data transmitted by the RFID system data acquisition unit into the RFID reader performance data mathematical model, and calculate the RFID reader performance coefficient value of each sub-area, which is specifically expressed as: RA i Represents the RFID reader performance coefficient value of the i-th sub-area, Rc i represents the multi-tag read / write conflict rate of the ith sub-area, Rx i-1 Represents the signal strength of the reader / writer in the i-1th sub-area, Rx i Represents the signal strength of the reader in the ith sub-area, Rs i represents the tag recognition success rate of the ith sub-area, n represents the number of sub-areas, and a represents the fitting parameter value of the signal strength of the reader, which ranges from [1,1.8).

4. The storage management system for hazardous chemicals based on RFID automatic identification according to claim 1 is characterized by: The hazardous chemical material circulation data calculation subunit is used to establish a hazardous chemical material circulation data mathematical model, import the hazardous chemical material circulation data transmitted by the hazardous chemical cabinet performance data acquisition unit into the hazardous chemical material circulation complex data mathematical model, and calculate the hazardous chemical material circulation coefficient value of each sub-area, which is specifically expressed as: WA i represents the hazardous chemical turnover coefficient value of the ith sub-area, Wy i represents the validity period of hazardous chemicals in the ith sub-area, Wc i represents the production date of hazardous chemicals in the ith sub-area, Wt i represents the inspection period of hazardous chemicals in the ith sub-area, Wb i represents the number of storage location changes of the i-th sub-region, and n represents the number of sub-regions.

5. The storage management system for hazardous chemicals based on RFID automatic identification according to claim 1 is characterized by: The storage environment data calculation subunit is used to establish a storage environment data mathematical model, import the storage environment data transmitted by the hazardous chemicals cabinet performance data acquisition unit into the storage environment data mathematical model, and calculate the storage environment data coefficient value of each sub-area, which is specifically expressed as: HA i Represents the storage environment coefficient value of the i-th sub-area, Hc i Indicates the internal temperature value of the cabinet in the ith sub-area, Hc max Indicates the maximum cabinet internal temperature in the target area, Hs i-1 Hs represents the water molecule concentration inside the cabinet in the i-1th sub-area. i represents the water molecule concentration inside the cabinet of the ith sub-area, Hq i represents the electromagnetic intensity inside the cabinet of the ith sub-area, Hq max Indicates the maximum electromagnetic intensity inside the cabinet in the target area, Hg i-1 Represents the light intensity inside the cabinet of the i-1th sub-area, Hg i represents the light intensity inside the cabinet in the ith sub-area, n represents the number of sub-areas, and b represents the fitting parameter value of the temperature inside the cabinet, which ranges from [1,2).

6. The storage management system for hazardous chemicals based on RFID automatic identification according to claim 1 is characterized by: The RFID system performance data calculation unit establishes a mathematical model of RFID system data through the RFID tag performance coefficient value of the i-th sub-region and the RFID reader performance coefficient value of the i-th sub-region to obtain the RFID system characteristic value of the i-th sub-region, which is specifically expressed as: α i =(BA i +RA i )×ρ1,BA i represents the RFID tag performance coefficient value of the i-th sub-area, RA i represents the performance coefficient of the RFID reader in the i-th sub-area, α i represents the RFID system characteristic value of the i-th sub-region, ρ1 represents the fitting coefficient of the RFID system characteristic value; The hazardous chemicals cabinet performance data calculation unit establishes a mathematical model through the cabinet characteristic coefficient value of the i-th sub-area, the hazardous chemical circulation coefficient value of the i-th sub-area, and the storage environment coefficient value of the i-th sub-area to calculate the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, which is specifically expressed as: β i =(GA i +WA i +HA i )×ρ2,GA i Indicates the cabinet characteristic coefficient value of the i-th sub-area, WA i Represents the hazardous chemical turnover coefficient value of the ith sub-area, HA i represents the storage environment coefficient value of the i-th sub-area, β i represents the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, and ρ2 represents the fitting coefficient of the characteristic value of the hazardous chemicals cabinet; The comprehensive data processing model is obtained in the following manner: Where η represents the risk assessment value of hazardous chemicals in the target area, α i represents the RFID system characteristic value of the i-th sub-area, β i represents the performance characteristic value of the hazardous chemicals cabinet in the i-th sub-area, λ i represents the hazardous chemicals risk assessment value of the i-th sub-area, μ represents the mean of the hazardous chemicals risk assessment values ​​of the target area, where i = 1, 2, …, n.

7. The storage and management system for hazardous chemicals based on RFID automatic identification according to claim 6 is characterized by: The risk assessment value of hazardous chemicals in the preset target area is recorded as η def , the risk assessment value of hazardous chemicals in the target area is accurately compared with the risk assessment value of hazardous chemicals in the preset target area during the actual operation. The specific calculation formula is: L risk represents the risk index of the target area, η represents the risk assessment value of hazardous chemicals in the target area, and according to the risk index L of the target area risk When L risk ≤0.2, a safety signal is sent to the early warning module. risk When >0.2, a danger signal is sent to the early warning module.

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