An RFID tag intelligent identification method

Abstract

The present invention discloses an intelligent identification method for RFID tags, which relates to the field of intelligent identification of RFID tags and includes steps of tag production, matching and attachment, configuring the RFID system, starting the RFID system, tag activation and identification, data transmission and processing, and goods monitoring and early warning. By analyzing the environment of the goods and the characteristics of the goods, the present invention obtains a comprehensive demand set of the goods, matches it with the types of RFID tags to obtain corresponding RFID tags, further analyzes the goods information to obtain a goods identification code demand set, matches it with the tag identification code to obtain the corresponding tag identification code, and then through the analysis and determination of the goods environmental interference value, goods special demand value and goods standard demand value, obtains a comprehensive demand set of the storage room, matches it with the reader to obtain the corresponding reader, can comprehensively consider the characteristics of the goods and the environment where they are located to match the corresponding tags and tag identification codes, and can also match the storage room to the corresponding reader, which can ensure the safety, accuracy and economy of identification.

Description

Technical Field

[0001] The present invention relates to the field of intelligent identification of RFID tags, and specifically to an intelligent identification method for RFID tags. Background Art

[0002] With the continuous development of society and the continuous progress of the economy, the demand for goods is becoming increasingly important. Of course, the identification and management of goods are even more difficult problems that need to be solved. Traditional goods identification and management rely too much on barcodes and manual records, greatly reducing work efficiency and work accuracy. Therefore, the intelligent identification method for RFID tags has emerged as the times require.

[0003] When the traditional intelligent identification method for RFID tags operates, it cannot consider the characteristics of goods and the interference of electromagnetism, metal, liquid, and temperature difference in which the goods are located, nor can it consider the commercial situation, link values, and danger of goods. Moreover, it cannot make the goods match with the appropriate RFID tags, and cannot make the identification codes of the goods match with the appropriate RFID tags, greatly increasing the error rate of work, increasing the cost of work, and at the same time reducing work efficiency.

[0004] When the traditional intelligent identification method for RFID tags operates, it cannot consider the situation of goods in the storage room, the quality of the environment, and the demand for goods. Moreover, it cannot make the storage room match with the appropriate reader, resulting in frequent system breakdowns.

[0005] In order to solve the above defects, a technical solution is provided now. Summary of the Invention

[0006] In order to solve the technical problems proposed in the above background art, the present invention is proposed. An embodiment of the present invention provides an intelligent identification method for RFID tags.

[0007] The object of the present invention can be achieved by the following technical solutions: An intelligent identification method for RFID tags includes the following steps:

[0008] Step 1: Tag production. Analyze the characteristics of goods and environmental interference in the goods information to obtain a comprehensive demand set for goods, and match the comprehensive demand set for goods with the types of RFID tags to obtain the tag type. Use the obtained tag type for production, and encapsulate the RFID chip and the antenna in the tag material.

[0009] Step 2: Matching and attaching. Judge and analyze the goods information to obtain a set of identification code requirements for goods, and match it with the identification code of the RFID tag to generate an RFID tag with a uniquely corresponding identification code; Select a flat, dry, and firmly adherable position for the produced RFID tag to attach the tag to the goods.

[0010] Step 5: Tag activation recognition. Goods with RFID tags enter the recognition area of the reader. The reader automatically emits a specific electromagnetic wave signal. The antenna of the tag receives the signal and generates an electric current in the internal circuit of the tag, thereby activating the tag to enter the working state. The activated tag reflects the stored goods information back to the reader in the form of a radio frequency signal. The reader receives the goods information sent by the tag to complete the recognition of the goods information;

[0011] The matching of the comprehensive demand set of the goods with the RFID tag types specifically includes the following steps:

[0012] Assign calibration values to each determination signal in the data transmission interference degree signal and the goods characteristic demand signal; sequentially assign calibration values to the data transmission interference degree slight signal, data transmission interference degree medium signal, and data transmission interference degree large signal in the data transmission interference degree signal as X1, X2, and X3; sequentially assign calibration values to the primary goods characteristic demand signal, secondary goods characteristic demand signal, and tertiary goods characteristic demand signal in the goods characteristic demand signal as Z3, Z2, and Z1, where X1 < X2 < X3 and Z1 < Z2 < Z3;

[0013] At the same time, capture the calibrated score values in each type of determination signal, perform summation analysis on each calibrated score value, and obtain the comprehensive assignment H of each good; classify each good according to the comprehensive assignment of the good. When the comprehensive assignment of the good is X3 + Z3 or X2 + Z3 or X3 + Z2, the corresponding good is classified into the primary goods comprehensive demand set A1. When the total score value is X2 + Z2 or X1 + Z3 or X3 + Z1, the corresponding good is classified into the secondary goods comprehensive demand set A2. When the total score value is X1 + Z1 or X1 + Z2 or X2 + Z1, the corresponding good is classified into the tertiary goods comprehensive demand set A3;

[0014] Step 106: When the goods are in the primary comprehensive demand set A1, the RFID tag is correspondingly selected as an anti-metal ultra-high frequency tag with a working frequency of 300 MHz - 3 GHz; when the goods are in the secondary comprehensive demand set A2, the RFID tag is correspondingly selected as an anti-metal high frequency tag with a working frequency of 3 MHz - 30 MHz; when the goods are in the tertiary comprehensive demand set A3, the RFID tag is correspondingly selected as a low frequency tag with a working frequency of 30 kHz - 300 kHz.

[0015] The data transmission interference degree signal specifically includes the following steps:

[0016] Step 101: Obtain the liquid interference factor coefficient, metal interference factor coefficient, electromagnetic interference factor coefficient, and temperature difference interference factor coefficient in the goods storage room information, and calculate the goods environmental interference value hr through formula;

[0017] Step 102: Set the disturbance reference ranges T1, T2, and T3 of the goods disturbance value, and substitute the goods disturbance value into the preset disturbance reference ranges T1, T2, and T3 for comparative analysis. Among them, the disturbance reference ranges T1, T2, and T3 decrease in a gradient manner;

[0018] When the goods disturbance value is within the preset disturbance reference range T1, a signal with a relatively large degree of data transmission interference is generated. When the goods disturbance value is within the preset disturbance reference range T2, a signal with a medium degree of data transmission interference is generated. When the goods disturbance value is within the preset disturbance reference range T3, a signal with a slight degree of data transmission interference is generated.

[0019] The electromagnetic interference factor coefficient and the temperature difference interference factor coefficient specifically include the following steps:

[0020] Obtain the power of each radiation source, the antenna gain, and the distance between the goods and the radiation source in the goods storage room information, and calculate the magnetic internal disturbance intensity nr through formula calculation; obtain the vertical distance, horizontal distance, and high-voltage line power between the external high-voltage transmission line and the goods in the goods information, and analyze the magnetic external disturbance intensity wr; perform weighted calculation on the magnetic internal disturbance intensity and the magnetic external disturbance intensity, and multiply by the corresponding influence factor to obtain the electromagnetic interference factor coefficient dc;

[0021] Obtain the temperature information in the goods storage room during a specific time period, divide the storage time period into several sub-time periods m, perform calculation analysis and graph construction to obtain the temperature difference interference factor coefficient wc.

[0022] The goods characteristic demand signal specifically includes the following steps:

[0023] Step 103: Obtain the representative signal influence value, material storage demand value, reading distance, and data storage value of each good in the goods information, and calculate the goods special demand value txz through formula calculation;

[0024] Step 104: Set the reference interval Q1 of the goods special demand value, and compare and analyze the goods special demand value with the preset reference interval Q1;

[0025] When the goods special demand value is less than the minimum value of the preset reference interval Q1, a third-level goods characteristic demand signal is generated. When the goods special demand value is within the preset reference interval Q1, a second-level goods characteristic demand signal is generated. When the goods special demand value is greater than the maximum value of the preset reference interval Q1, a first-level goods characteristic demand signal is generated.

[0026] The matching with the identification code of the RFID tag includes the following steps:

[0027] Step 201: Obtain the commercial value, supply-demand quantity value, and dangerous and perishable value of the goods in the goods information, and analyze the goods standard demand value bxz;

[0028] Set a reference threshold XX1 for the required value of the goods label, and compare and analyze the required value of the goods label with the preset reference threshold XX1;

[0029] When the special required value of the goods is less than the preset reference threshold XX1, the corresponding goods are classified into the three-level goods identification code demand set B3. When the special required value of the goods is equal to the preset reference threshold XX1, the corresponding goods are classified into the two-level goods identification code demand set B2. When the special required value of the goods is greater than the preset reference threshold XX1, the corresponding goods are classified into the first-level goods identification code demand set B1;

[0030] When the goods are in the first-level goods identification code demand set B1, the RFID tag identification code is correspondingly selected as the dynamic coding identification code; when the goods are in the second-level goods identification code demand set B2, the RFID tag identification code is correspondingly selected as the two-dimensional code; when the goods are in the third-level goods identification code demand set B3, the RFID tag identification code is correspondingly selected as the simple digital coding.

[0031] The commercial value of the goods includes the following steps:

[0032] Obtain the annual sales net profit value, annual market sales volume and market share of the goods in the goods information, and obtain the commercial value sj of the goods according to the formula.

[0033] It also includes the following steps:

[0034] Step 3: Configure the RFID system, further analyze the goods to obtain the comprehensive demand set of the storage room, match the corresponding reader, and install and configure the RFID middleware and management software;

[0035] Step 4: Start the RFID system, turn on the reader and equipment, start the RFID management software, log in to the system and perform system settings;

[0036] Step 6: Data transmission and processing, the reader transmits the identified goods information to the management system through the network;

[0037] Step 7: Goods monitoring and early warning, identify the inventory of the current storage room through the label and compare it with the set threshold. If the goods inventory is lower than the set threshold, the system automatically issues a replenishment early warning.

[0038] The matching of the corresponding reader includes the following steps:

[0039] Step 301: Process the graphical construction of the goods surrounding value hr, the special required value txz and the required value of the goods label bxz, and analyze to obtain the total required value of the goods;

[0040] Set a reference threshold XX2 for the total required value of goods, compare and analyze the total required value of goods with the preset reference threshold XX2, and calculate the comprehensive required value czx of the storage room through a formula;

[0041] Step 302: Set a reference threshold XX3 for the comprehensive required value of the storage room. When the total required value of goods is less than the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D3 of the third-level storage room. When the comprehensive required value of the storage room is equal to the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D2 of the second-level storage room. When the comprehensive required value of the storage room is greater than the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D1 of the first-level storage room;

[0042] When the storage room is in the comprehensive demand set D1 of the first-level storage room, the storage room is correspondingly selected as an intelligent interference detection, encrypted communication, and equipped with a solid-state drive reader. When the storage room is in the comprehensive demand set D2 of the second-level storage room, the storage room is correspondingly selected as a reader with frequency agility function, data integrity verification function, and support for data compression function. When the storage room is in the comprehensive demand set D3 of the third-level storage room, the storage room is correspondingly selected as an entry-level low-frequency reader.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] 1. By analyzing the environment and characteristics of the goods, the present invention obtains the comprehensive demand set of the goods, matches it with the types of RFID tags to obtain the corresponding RFID tags, and through further analysis of the goods information, obtains the goods identification code demand set, and matches it with the tag identification code to obtain the corresponding tag identification code. It can consider the characteristics of the goods and the electromagnetic, metal, liquid, and temperature difference interference where the goods are located, and can also consider the business situation, link values, and hazards of the goods. Moreover, it can make the goods match the appropriate RFID tags and the goods match the appropriate RFID tag identification codes, greatly reducing the error rate of work, reducing the work cost, and improving work efficiency at the same time.

[0045] 2. By analyzing and determining the goods environmental interference value, goods special required value, and goods standard required value, the present invention obtains the comprehensive demand set of the storage room and matches it with the reader to obtain the corresponding reader. It can consider the situation of the goods in the storage room, the quality of the environment, and the demand degree of the goods, and can make the storage room match with the appropriate reader, greatly reducing the occurrence of system breakdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. The following drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0047] Figure 1 This is the system block diagram of the present invention. Specific implementation manners

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts also belong to the scope of protection of the present invention.

[0049] As Figure 1 shown, an RFID tag intelligent identification method includes the following steps:

[0050] Step 1: Tag production. Analyze the goods characteristics and environmental interference in the goods information to obtain a set of comprehensive goods requirements, and match the set of comprehensive goods requirements with the RFID tag type to obtain the tag type. Use the obtained tag type for production, and encapsulate the RFID chip and the antenna in the tag material.

[0051] Step 2: Matching and attachment. Judge and analyze the goods information to obtain a set of goods identification code requirements, and match it with the identification code of the RFID tag to generate an RFID tag with a uniquely corresponding identification code. Select a flat, dry and firmly adherent position for the attached RFID tag on the goods.

[0052] Step 3: Configure the RFID system. Further analyze the goods to obtain a set of comprehensive storage requirements, match the corresponding reader, and install and configure the RFID middleware and management software.

[0053] Step 4: Start the RFID system. Turn on the reader and the device, start the RFID management software, log in to the system and perform system settings.

[0054] Step 5: Tag activation and identification. The goods with the RFID tag enter the identification area of the reader. The reader automatically emits a specific electromagnetic wave signal. The antenna of the tag receives the signal and generates an electric current in the internal circuit of the tag, thereby activating the tag to enter the working state. The activated tag reflects the stored goods information back to the reader in the form of a radio frequency signal. The reader receives the goods information sent by the tag to complete the identification of the goods information.

[0055] Step 6: Data transmission and processing. The reader transmits the identified goods information to the management system through the network.

[0056] Step 7: Goods monitoring and early warning. Identify the inventory in the current storage room through tags and compare it with the set threshold. When the goods inventory is lower than the set threshold, the system automatically issues a replenishment warning;

[0057] Among them, the data transmission interference degree signal specifically includes the following steps:

[0058] Step 101: Obtain the electromagnetic interference factor coefficient, metal interference factor coefficient, liquid interference factor coefficient, and temperature difference interference factor coefficient in the goods storage room information, and calibrate them as dc, js, yt, and wc respectively. Then perform normalization analysis on them. According to the formula hr = e a1*dc+a2*js +ln(a3*yt + a4*wc), obtain the goods environmental interference value hr, where a1, a2, a3, and a4 are the correction factor coefficients of the electromagnetic interference factor coefficient, metal interference factor coefficient, liquid interference factor coefficient, and temperature difference interference factor coefficient respectively, and a1, a2, a3, and a4 are all natural numbers greater than 0. The correction factor coefficient is used to correct the deviation that appears in the formula calculation process of each parameter, so as to obtain more accurate parameter data. e is the natural constant, specifically 2.718;

[0059] It should be noted that the metal interference factor coefficient refers to the sum of the products of the volumes of various metals in the goods storage room and the magnetic permeability of the corresponding metals, multiplied by the adjustment factor. The liquid interference factor coefficient refers to the sum of the products of the volumes of various liquids in the goods storage room and the conductivity of the corresponding liquids, multiplied by the adjustment factor;

[0060] It should also be pointed out that the specific operation processes of the electromagnetic interference factor coefficient dc and the temperature difference interference factor coefficient wc are as follows:

[0061] Obtain the power of each radiation source, antenna gain, and the distance between the goods and the radiation source in the goods storage room information, and calibrate them as pf i 、gt i and lf i , i is the number of the radiation source, i = 1, 2, 3...I, and the value range of I is a positive integer. According to the formula obtain the magnetic internal interference intensity nr, a5 is the correction factor in the calculation formula, and the specific value is determined by professionals in this field; Obtain the vertical distance, horizontal distance, and high-voltage line power between the external high-voltage transmission line and the goods in the goods information, and calibrate them as cl n 、sj n and gy n , n is the number of the high-voltage transmission line, i = 1, 2, 3...N, and the value range of N is a positive integer. According to the formula The magnetic external disturbance intensity wr is obtained, and a6 is a correction factor in the calculation formula, and its specific value is determined by professionals in this field; the magnetic internal disturbance intensity and the magnetic external disturbance intensity are weighted and calculated, and multiplied by the corresponding influence factors to obtain the electromagnetic interference factor coefficient dc;

[0062] Obtain the temperature information of the goods storage room during the time period of the goods storage room in the goods storage room information, divide the storage time period into several sub-time periods m, and label them as cw m , m is the number of the sub-time period, m = 1, 2, 3...M, and the value range of M is a positive integer. Sort the temperature values of the storage room in the order of time, subtract the temperature value sorted earlier from the temperature value sorted later to obtain the sub-temperature difference value, and sum them up to statistically obtain the total sub-temperature difference value. According to the set formula The total sub-temperature state value zw is obtained, where M1 is the reference temperature value set for the storage room. Among them, f1 and f2 are the correction factor coefficients of the sub-time period temperature in different cases in the formula, and f1 > f2; the total sub-temperature difference value and the total sub-temperature state value are converted into lengths according to a certain ratio, and an ellipse is constructed with the lengths of the total sub-temperature difference value and the total sub-temperature state value as the long side and the short side of the ellipse respectively, and the area of the ellipse is identified and marked as the temperature difference interference factor coefficient wc;

[0063] It should also be noted that the larger the manifestation value of the goods ring disturbance value, the more serious the interference of the goods' data information by the transmission environment;

[0064] Step 102: Set the ring disturbance reference ranges T1, T2, and T3 of the goods ring disturbance value, and substitute the goods ring disturbance value into the preset ring disturbance reference ranges T1, T2, and T3 for comparative analysis. Among them, the ring disturbance reference ranges T1, T2, and T3 decrease in a gradient;

[0065] It should be pointed out that assuming that the ring disturbance reference ranges T1, T2, and T3 decrease in a gradient of 10, when the ring disturbance reference range T1 is set to 120 - 90, the ring disturbance reference range T2 can be set to 89 - 60, and the attenuation reference range T3 can be set to 59 - 30. The setting of the value range of the ring disturbance reference ranges T1, T2, and T3 and the setting of the gradient reduction value are all specifically set by those skilled in the art in specific cases;

[0066] When the goods ring disturbance value is within the preset ring disturbance reference range T1, a signal with a relatively large degree of data transmission interference is generated. When the goods ring disturbance value is within the preset ring disturbance reference range T2, a signal with a medium degree of data transmission interference is generated. When the goods ring disturbance value is within the preset ring disturbance reference range T3, a signal with a relatively small degree of data transmission interference is generated;

[0067] Among them, the goods characteristic demand signal specifically includes the following steps:

[0068] Step 103: Obtain the representative signal influence value, material storage demand value, reading distance, and data storage value of each item of goods in the goods information, and label them as bx, wx, dj, and sc respectively, and perform normalization analysis on them. According to the formula Obtain the special demand value txz of the goods, where h1, h2, h3, and h4 are the correction factor coefficients of the representative signal influence value, material storage demand value, reading distance, and data storage value of the goods respectively, and h1, h2, h3, and h4 are all natural numbers greater than 0. The correction factor coefficients are used to correct the deviations that occur in the formula calculation of each parameter, so as to make the calculated parameter data more accurate;

[0069] It should be noted that the representative signal influence value is obtained by weighted calculation of the surface roughness and the conductivity value of the surface coating of the goods and multiplying by the corresponding influence factor; the material storage demand value is obtained by weighted calculation of the logistics speed and storage time of the goods and multiplying by the corresponding influence factor; the data storage value is the numerical manifestation value of the number of information that the goods need to store, and the specific stored information is product specifications, production date, batch number, manufacturer, etc.;

[0070] Step 104: Set the reference interval Q1 of the special demand value of the goods, and compare and analyze the special demand value of the goods with the preset reference interval Q1;

[0071] When the special demand value of the goods is less than the minimum value of the preset reference interval Q1, a third-level goods characteristic demand signal is generated. When the special demand value of the goods is within the preset reference interval Q1, a second-level goods characteristic demand signal is generated. When the special demand value of the goods is greater than the maximum value of the preset reference interval Q1, a first-level goods characteristic demand signal is generated;

[0072] Among them, the specific steps of the comprehensive demand set of the goods are as follows:

[0073] Step 105: Assign and calibrate each determination signal in the data transmission interference degree signal and the goods characteristic demand signal;

[0074] Specifically, the data transmission interference degree slight signal, data transmission interference degree medium signal, and data transmission interference degree large signal in the data transmission interference degree signal are sequentially assigned and calibrated as X1, X2, X3; the first-level goods characteristic demand signal, second-level goods characteristic demand signal, and third-level goods characteristic demand signal in the goods characteristic demand signal are sequentially assigned and calibrated as Z3, Z2, Z1, where X1 < X2 < X3, Z1 < Z2 < Z3;

[0075] Simultaneously capture the calibrated score values in various types of determination signals, sum up and analyze the calibrated score values, and obtain the comprehensive assignment H of each cargo; classify each cargo according to the comprehensive assignment of the cargo. When the comprehensive assignment of the cargo is X3+Z3 or X2+Z3 or X3+Z2, the corresponding cargo is classified into the first-level cargo comprehensive demand set A1. When the total score value is X2+Z2 or X1+Z3 or X3+Z1, the corresponding cargo is classified into the second-level cargo comprehensive demand set A2. When the total score value is X1+Z1 or X1+Z2 or X2+Z1, the corresponding cargo is classified into the third-level cargo comprehensive demand set A3;

[0076] Among them, the matching analysis of the RFID tag and the cargo comprehensive demand set specifically includes the following steps:

[0077] Step 106: When the cargo is in the first-level comprehensive demand set A1, the RFID tag is correspondingly selected as a metal-resistant ultra-high-frequency tag with a working frequency of 300 MHz - 3 GHz; when the cargo is in the second-level comprehensive demand set A2, the RFID tag is correspondingly selected as a metal-resistant high-frequency tag with a working frequency of 3 MHz - 30 MHz; when the cargo is in the third-level comprehensive demand set A3, the RFID tag is correspondingly selected as a low-frequency tag with a working frequency of 30 kHz - 300 kHz;

[0078] Among them, the RFID tag with the uniquely corresponding identification code specifically includes the following steps:

[0079] Step 201: Obtain the commercial value, supply-demand value, and hazard-corrosion value of the cargo in the cargo information, calibrate them as sj, gh, and wf respectively, and perform normalization analysis on them. According to the formula Obtain the calibrated demand value bxz, where j1, j2, and j3 are set correction factor coefficients;

[0080] It should be noted that the supply-demand value is obtained by weighted calculation of the link values involved in the cargo from identification to end and the refinement degree requirement of cargo management, multiplied by the corresponding correction factor coefficient; the hazard-corrosion value is obtained by weighted calculation of the reciprocal of the property loss value caused by the cargo, the reciprocal of the number of personal injury levels, and the reciprocal of the cargo shelf life value, multiplied by the corresponding correction factor coefficient;

[0081] It should also be pointed out that the specific operation process of the commercial value of the cargo is as follows:

[0082] Obtain the annual net profit value of sales, annual market sales volume, and market share of the goods in the goods information, label them as nj, nl, and sz respectively, perform normalization analysis on them, and obtain the commercial value sj of the goods according to the formula sj = r1 * nj + r2 * nl + r3 * sz, where r1, r2, and r3 are the correction factor coefficients of the annual net profit value of sales, annual market sales volume, and market share respectively;

[0083] Set the reference threshold XX1 for the required value of the goods, and compare and analyze the required value of the goods with the preset reference threshold XX1;

[0084] When the special required value of the goods is less than the preset reference threshold XX1, the corresponding goods are classified into the three - level goods identification code demand set B3. When the special required value of the goods is equal to the preset reference threshold XX1, the corresponding goods are classified into the two - level goods identification code demand set B2. When the special required value of the goods is greater than the preset reference threshold XX1, the corresponding goods are classified into the one - level goods identification code demand set B1;

[0085] When the goods are in the one - level goods identification code demand set B1, the RFID tag identification code is correspondingly selected as the dynamic coding identification code; when the goods are in the two - level goods identification code demand set B2, the RFID tag identification code is correspondingly selected as the two - dimensional code; when the goods are in the three - level goods identification code demand set B3, the RFID tag identification code is correspondingly selected as the simple digital code;

[0086] Among them, the specific steps for the corresponding reader to match are as follows:

[0087] Step 301: Convert the goods surrounding value hr and the special required value txz into lengths according to a certain ratio. Construct a cylinder with the lengths of the goods surrounding value hr and the special required value txz as the bottom - circle radius and the height of the cylinder respectively. Convert the required value of the goods bxz into a length according to a certain ratio, and construct a cube with the length of the required value of the goods bxz as the side length of the cube. The center of the upper top surface of the cylinder coincides with the center of the lower bottom square of the cube. Identify the non - overlapping volume formed by the cylinder and the cube, and label it as the total required value of the goods;

[0088] Set the reference threshold XX2 for the total required value of the goods, and compare and analyze the total required value of the goods with the preset reference threshold XX2. When the total required value of the goods is less than the preset reference threshold XX2, it is counted as low - comprehensive - demand goods. When the total required value of the goods is equal to the preset reference threshold XX2, it is counted as medium - comprehensive - demand goods. When the total required value of the goods is higher than the preset reference threshold XX2, it is counted as high - comprehensive - demand goods. And count the numbers of low - comprehensive - demand goods, medium - comprehensive - demand goods, and high - comprehensive - demand goods in the storage room respectively, label them as dz, zz, and gz, count the occupancy rates of low - comprehensive - demand goods and high - comprehensive - demand goods, label them as zdz and zgz, according to the set formula Obtain the comprehensive demand value czx of the storage room. r4 and r5 are the correction factor coefficients of the high comprehensive demand goods occupancy rate and the low comprehensive demand goods occupancy rate respectively;

[0089] Step 302: Set the reference threshold XX3 of the comprehensive demand value of the storage room. When the total demand value of the goods is less than the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D3 of the third-level storage room. When the comprehensive demand value of the storage room is equal to the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D2 of the second-level storage room. When the comprehensive demand value of the storage room is greater than the preset reference threshold XX3, the corresponding storage room is classified into the comprehensive demand set D1 of the first-level storage room;

[0090] When the storage room is in the comprehensive demand set D1 of the first-level storage room, the storage room is correspondingly selected as an intelligent interference detection, encrypted communication, and equipped with a solid-state drive reader. When the storage room is in the comprehensive demand set D2 of the second-level storage room, the storage room is correspondingly selected as a reader with a frequency agility function, a data integrity check function, and a data compression support function. When the storage room is in the comprehensive demand set D3 of the third-level storage room, the storage room is correspondingly selected as an entry-level low-frequency reader;

[0091] The above is a description of the present invention and should not be construed as a limitation thereof. Although several exemplary embodiments of the present invention have been described, those skilled in the art will readily understand that many modifications can be made to the exemplary embodiments without departing from the novel teachings and advantages of the present invention. Therefore, all such modifications are intended to be included within the scope of the present invention as defined by the claims. It should be understood that the above is a description of the present invention and should not be considered limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims. The present invention is defined by the claims and their equivalents.

Claims

1. An RFID tag intelligent recognition method, characterized in that, It includes the following steps: Step 1: Tag production. Analyze the characteristics of goods and environmental interference in the goods information to obtain the comprehensive demand set of goods. Match the comprehensive demand set of goods with the RFID tag type to obtain the RFID tag type of the goods. Based on the RFID tag type of the goods, produce the RFID chip of the goods, and encapsulate the RFID chip and antenna of the goods in the tag material; The specific steps for obtaining the comprehensive demand set of goods include the following: Obtain the power of each radiation source, antenna gain, and the distance between the goods and the radiation source in the goods storage room information, and calculate the magnetic internal interference intensity nr; obtain the vertical distance, horizontal distance, and high-voltage line power between the external high-voltage transmission line and the goods in the goods information, and analyze the magnetic external interference intensity wr; perform weighted calculation on the magnetic internal interference intensity and the magnetic external interference intensity, and multiply by the corresponding influence factor to obtain the electromagnetic interference factor coefficient dc; Step 101: Obtain the liquid interference factor coefficient, metal interference factor coefficient, electromagnetic interference factor coefficient, and temperature difference interference factor coefficient in the goods storage room information, and calculate the goods environmental interference value hr; Step 102: Set the environmental interference reference ranges T1, T2, and T3 of the goods environmental interference value, and substitute the goods environmental interference value into the preset environmental interference reference ranges T1, T2, and T3 for comparative analysis. Among them, the environmental interference reference ranges T1, T2, and T3 decrease in a gradient; When the goods environmental interference value is within the preset environmental interference reference range T1, a signal with a relatively large degree of data transmission interference is generated. When the goods environmental interference value is within the preset environmental interference reference range T2, a signal with a medium degree of data transmission interference is generated. When the goods environmental interference value is within the preset environmental interference reference range T3, a signal with a slight degree of data transmission interference is generated; Assign calibration values to each determination signal in the data transmission interference degree signal and the goods characteristic demand signal; assign calibration values to the data transmission interference degree slight signal, data transmission interference degree medium signal, and data transmission interference degree large signal in the data transmission interference degree signal as X1, X2, and X3 in sequence; assign calibration values to the primary goods characteristic demand signal, secondary goods characteristic demand signal, and tertiary goods characteristic demand signal in the goods characteristic demand signal as Z3, Z2, and Z1 in sequence, where X1 < X2 < X3 and Z1 < Z2 < Z3; At the same time, capture the calibrated score values in each type of determination signal, perform summation analysis on each calibrated score value, and obtain the comprehensive assignment H of each good; classify each good according to the comprehensive assignment of the good. When the comprehensive assignment of the good is X3 + Z3 or X2 + Z3 or X3 + Z2, the corresponding good is classified into the primary goods comprehensive demand set A1. When the total score value is X2 + Z2 or X1 + Z3 or X3 + Z1, the corresponding good is classified into the secondary goods comprehensive demand set A2. When the total score value is X1 + Z1 or X1 + Z2 or X2 + Z1, the corresponding good is classified into the tertiary goods comprehensive demand set A3; Step 2: Matching and attaching. Determine and analyze the goods information to obtain the set of goods identification code requirements, match the set of goods identification code requirements with the identification codes of RFID tags, and generate RFID tags with unique corresponding identification codes; select the corresponding positions of the manufactured RFID tags and attach the tags to the goods. Step 5: Tag activation and identification. The goods with RFID tags enter the identification area of the reader. The reader automatically emits a specific electromagnetic wave signal. The antenna of the tag receives the electromagnetic wave signal and generates an electric current in the internal circuit of the tag, thereby activating the tag to enter the working state. The activated tag reflects the stored goods information back to the reader in the form of a radio frequency signal. The reader receives the goods information sent by the tag and completes the identification of the goods information.

2. The RFID tag intelligent recognition method according to claim 1, characterized in that, The matching of the comprehensive goods demand set with the RFID tag type specifically includes the following steps: Step 106: When the goods are in the first-level comprehensive goods demand set A1, the RFID tag is correspondingly selected as a metal-resistant ultra-high frequency tag with a working frequency of 300 MHz - 3 GHz; when the goods are in the second-level comprehensive goods demand set A2, the RFID tag is correspondingly selected as a metal-resistant high frequency tag with a working frequency of 3 MHz - 30 MHz; when the goods are in the third-level comprehensive goods demand set A3, the RFID tag is correspondingly selected as a low frequency tag with a working frequency of 30 kHz - 300 kHz.

3. The RFID tag intelligent recognition method according to claim 2, characterized in that, Obtaining the temperature difference interference factor coefficient specifically includes the following steps: Obtain the temperature information in the goods storage room during the goods storage room time period, divide the storage time period into several sub-time periods m, calculate, analyze, and construct a graph to obtain the temperature difference interference factor coefficient wc.

4. The RFID tag intelligent recognition method according to claim 1, characterized in that Obtaining the goods characteristic demand signal specifically includes the following steps: Step 103: Obtain the representative signal influence value, material storage demand value, reading distance, and data storage value of each good in the goods information, and calculate the goods special demand value txz through a formula. Step 104: Set the reference interval Q1 of the goods special demand value, and compare and analyze the goods special demand value with the preset reference interval Q1. When the goods special demand value is less than the minimum value of the preset reference interval Q1, a third-level goods characteristic demand signal is generated; when the goods special demand value is within the preset reference interval Q1, a second-level goods characteristic demand signal is generated; when the goods special demand value is greater than the maximum value of the preset reference interval Q1, a first-level goods characteristic demand signal is generated.

5. The RFID tag intelligent recognition method according to claim 1, wherein The matching with the identification code of the RFID tag includes the following steps: Step 201: Obtain the commercial value, supply-demand value, and danger-corrosion value of the goods in the goods information, and analyze to obtain the goods standard demand value bxz. Set the reference threshold XX1 of the goods standard demand value, and compare and analyze the goods standard demand value with the preset reference threshold XX1. When the special demand value of the goods is less than the preset reference threshold XX1, the corresponding goods are classified into the third-level goods identification code demand set B3. When the special demand value of the goods is equal to the preset reference threshold XX1, the corresponding goods are classified into the second-level goods identification code demand set B2. When the special demand value of the goods is greater than the preset reference threshold XX1, the corresponding goods are classified into the first-level goods identification code demand set B1; When the goods are in the first-level goods identification code demand set B1, the RFID tag identification code is correspondingly selected as the dynamic coding identification code; when the goods are in the second-level goods identification code demand set B2, the RFID tag identification code is correspondingly selected as the two-dimensional code; when the goods are in the third-level goods identification code demand set B3, the RFID tag identification code is correspondingly selected as the simple digital coding.

6. The RFID tag intelligent identification method according to claim 5, characterized in that Obtaining the commercial value of the goods includes the following steps: Obtain the annual net sales profit value, annual market sales volume and market share of the goods in the goods information, and obtain the commercial value sj of the goods according to the formula.

7. A method for intelligent identification of RFID tags according to claim 1, characterized in that, It also includes the following steps: Step 3: Configure the RFID system, further analyze the goods to obtain the comprehensive demand set of the storage room, match the corresponding reader, and install and configure the RFID middleware and RFID management software; Step 4: Start the RFID system, turn on the reader, start the RFID middleware and RFID management software, log in to the system and perform system settings; Step 6: Data transmission and processing, the reader transmits the identified goods information to the management system through the network; Step 7: Goods monitoring and warning, identify the inventory of the current storage room through the label and compare it with the set threshold. If the goods inventory is lower than the set threshold, the system automatically issues a replenishment warning.

8. The RFID tag intelligent identification method according to claim 7, characterized in that, The matching of the corresponding reader includes the following steps: Step 301: Process the graphical construction of the goods surrounding value hr, the special demand value txz and the standard demand value bxz of the goods, and analyze to obtain the total demand value of the goods; Set the reference threshold XX2 of the total demand value of the goods, compare and analyze the total demand value of the goods with the preset reference threshold XX2, and calculate the comprehensive demand value czx of the storage room through the formula; Step 302: Set the reference threshold XX3 of the comprehensive demand value of the storage room. When the comprehensive demand value of the storage room is less than the preset reference threshold XX3, the corresponding storage room is classified into the third-level storage room comprehensive demand set D3. When the comprehensive demand value of the storage room is equal to the preset reference threshold XX3, the corresponding storage room is classified into the second-level storage room comprehensive demand set D2. When the comprehensive demand value of the storage room is greater than the preset reference threshold XX3, the corresponding storage room is classified into the first-level storage room comprehensive demand set D1; select the corresponding reader according to D1, D2 and D3.

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