RFID tag intelligent identification method

Abstract

The invention discloses an RFID tag intelligent identification method, which relates to the field of RFID tag intelligent identification and comprises the steps of tag manufacturing, matching and attachment, RFID system configuration, RFID system starting, tag activation and identification, data transmission processing and cargo monitoring and early warning. According to the invention, the goods environment and the characteristics of the goods are analyzed to obtain the goods comprehensive demand set, the goods comprehensive demand set is matched with the types of the RFID tags to obtain the corresponding RFID tags, the goods information is further analyzed to obtain the goods identification code demand set, the goods identification code demand set is matched with the tag identification code to obtain the corresponding tag identification code, and the goods identification code is matched with the tag identification code to obtain the corresponding RFID tags. The goods ring disturbance value, the goods special demand value and the goods standard demand value are analyzed and judged to obtain a storage chamber comprehensive demand set, and the storage chamber comprehensive demand set is matched with the reader to obtain the corresponding reader, so that the characteristics of the goods and the corresponding label and the label identification code matched with the environment can be comprehensively considered, and the storage chamber can be matched with the corresponding reader; and the safety, the accuracy and the economical efficiency of identification can be ensured.

Description

Technical Field

[0001] The present invention relates to the field of RFID tag intelligent identification, and in particular to an RFID tag intelligent identification method. Background Art

[0002] With the continuous development of society and the continuous progress of economy, the demand for goods is becoming more and more important. Of course, the identification and management of goods is a major problem that needs to be solved. Traditional goods identification and management rely too much on barcodes and manual records, which greatly reduces work efficiency and correctness, so RFID tag intelligent identification method came into being.

[0003] When operating, the traditional RFID tag intelligent identification method cannot take into account the characteristics of the goods and the interference of electromagnetic, metal, liquid and temperature differences in the goods. It cannot take into account the commercial situation, link values ​​and dangerousness of the goods. It is even more impossible to match the goods with the appropriate RFID tags. It is impossible to match the goods with the appropriate RFID tag identification code, which greatly increases the error rate of the work, increases the cost of work, and reduces work efficiency.

[0004] When operating, the traditional RFID tag intelligent identification method cannot take into account the condition of the goods in the storage room, the quality of the environment and the demand for the goods, and it is even more impossible to match the storage room with the appropriate reader, resulting in frequent system crashes.

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

[0006] In order to solve the technical problems raised by the above background technology, the present invention is proposed. An embodiment of the present invention provides an RFID tag intelligent identification method.

[0007] The purpose of the present invention can be achieved by the following technical solution: A method for intelligent identification of RFID tags, comprising the following steps:

[0008] Step 1: Label production: Analyze the cargo characteristics and environmental interference in the cargo information to obtain a comprehensive cargo demand set, match the comprehensive cargo demand set with the RFID tag type, obtain the tag type, use the obtained label production, and encapsulate the RFID chip and antenna in the label material;

[0009] Step 2: Matching and attachment: Analyze the cargo information, obtain the cargo identification requirement set, match it with the identification code of the RFID tag, and generate an RFID tag with a unique corresponding identification code; select a flat, dry and firmly adhered position to attach the prepared RFID tag to the cargo;

[0010] Step 5: Tag activation and identification. Goods with RFID tags enter the identification area of ​​the reader. The reader automatically emits a specific electromagnetic wave signal. The tag antenna receives the signal and generates current in the circuit inside the tag, which activates 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.

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

[0012] The data transmission interference degree signal and each judgment signal in the cargo characteristic demand signal are assigned and calibrated; the data transmission interference degree slight signal, the data transmission interference degree medium signal and the data transmission interference degree large signal in the data transmission interference degree signal are assigned and calibrated as X1, X2 and X3 respectively; the first-level cargo characteristic demand signal, the second-level cargo characteristic demand signal and the third-level cargo characteristic demand signal in the cargo characteristic demand signal are assigned and calibrated as Z3, Z2 and Z1 respectively, where X1 <X2<X3,Z1<Z2<Z3;

[0013] At the same time, the calibrated score values ​​in each type of judgment signal are captured, and each calibrated score value is added and analyzed to obtain the comprehensive value H of each cargo; each cargo is graded according to the comprehensive value of cargo, when the comprehensive value of cargo is X3+Z3 or X2+Z3 or X3+Z2, the corresponding cargo is graded 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 graded 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 graded into the third-level cargo comprehensive demand set A3;

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

[0015] The data transmission interference degree signal specifically comprises 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 cargo storage room information, and calculate the cargo environmental interference value hr by formula;

[0017] Step 102: setting environmental disturbance reference ranges T1, T2, and T3 for environmental disturbance values ​​of goods, and substituting the environmental disturbance values ​​of goods into the preset environmental disturbance reference ranges T1, T2, and T3 for comparative analysis, wherein the environmental disturbance reference ranges T1, T2, and T3 decrease in a gradient manner;

[0018] When the cargo environmental interference value is within the preset environmental interference reference range T1, a signal indicating a high degree of interference to data transmission is generated; when the cargo environmental interference value is within the preset environmental interference reference range T2, a signal indicating a moderate degree of interference to data transmission is generated; and when the cargo environmental interference value is within the preset environmental interference reference range T3, a signal indicating a slight degree of interference to data transmission is generated.

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

[0020] The power of each radiation source, antenna gain and distance between the cargo and the radiation source in the cargo storage room information are obtained, and the magnetic internal disturbance intensity nr is calculated by formula; the vertical distance, horizontal distance and high-voltage line power of the external high-voltage transmission line from the cargo are obtained in the cargo information, and the magnetic external disturbance intensity wr is obtained by analysis; the magnetic internal disturbance intensity and the magnetic external disturbance intensity are weighted and calculated, and multiplied by the corresponding influence factor to obtain the electromagnetic interference factor coefficient dc;

[0021] The temperature information of the cargo storage room in the cargo storage room information within the time period is obtained, the storage time period is divided into a number of sub-time periods m, and the temperature difference interference factor coefficient wc is obtained by calculation, analysis and graphic construction.

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

[0023] Step 103: Obtain the representative signal impact value, storage demand value, reading distance and data storage value of each cargo in the cargo information, and calculate the cargo special demand value txz through a formula;

[0024] Step 104: setting a reference interval Q1 of the special demand value of the goods, and performing a comparative analysis between the special demand value of the goods and the preset reference interval Q1;

[0025] 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.

[0026] Matching the identification code of the RFID tag includes the following steps:

[0027] Step 201: Obtain the commercial value, supply and demand value, and hazardous and corrosive value of the goods in the goods information, and analyze and obtain the standard demand value bxz of the goods;

[0028] Set a 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;

[0029] 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 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 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 demand set B1;

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

[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 based on the formula.

[0033] The following steps are also included:

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

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

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

[0037] Step 7: Cargo monitoring and warning: Identify the current inventory in the storage room through tags and compare it with the set threshold. If the cargo inventory is lower than the set threshold, the system automatically issues a replenishment warning.

[0038] The matching of the corresponding readers comprises the following steps:

[0039] Step 301: Graph the environmental disturbance value hr, the special demand value txz and the standard demand value bxz of the goods, and analyze and obtain the total demand value of the goods;

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

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

[0042] When the storage room is in the first-level storage room comprehensive demand set D1, the storage room is selected as intelligent interference detection, encrypted communication, and equipped with a solid-state hard disk reader; when the storage room is in the second-level storage room comprehensive demand set D2, the storage room is 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 third-level storage room comprehensive demand set D3, the storage room is selected as an entry-level low-frequency reader.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. The present invention obtains a comprehensive demand set of goods by analyzing the environment and characteristics of the goods, and matches them with the types of RFID tags to obtain corresponding RFID tags. Through further analysis of the goods information, a set of goods identification demand is obtained, and the corresponding tag identification code is matched with the tag identification code to obtain the corresponding tag identification code. The characteristics of the goods and the interference of electromagnetic, metal, liquid and temperature difference in which the goods are located can be considered, as well as the commercial situation, link value and danger of the goods. The goods can be matched with appropriate RFID tags and can be matched with appropriate RFID tag identification codes, which greatly reduces the error rate of work, reduces the cost of work, and improves work efficiency.

[0045] 2. The present invention obtains a comprehensive demand set for the storage room by analyzing and determining the environmental disturbance value, special demand value and standard demand value of the goods, and matches it with the reader to obtain a corresponding reader. It can take into account the condition of the goods in the storage room, the quality of the environment and the demand for the goods, and can match the storage room with a suitable reader, thereby 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 briefly introduces the drawings required for describing the embodiments. The following drawings are not intentionally scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0047] Figure 1 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present invention.

[0049] like Figure 1 As shown, a method for intelligently identifying an RFID tag comprises the following steps:

[0050] Step 1: Label production: Analyze the cargo characteristics and environmental interference in the cargo information to obtain a comprehensive cargo demand set, match the comprehensive cargo demand set with the RFID tag type, obtain the tag type, use the obtained label production, and encapsulate the RFID chip and antenna in the label material;

[0051] Step 2: Matching and attachment: Analyze the cargo information, obtain the cargo identification requirement set, match it with the identification code of the RFID tag, and generate an RFID tag with a unique corresponding identification code; select a flat, dry and firmly adhered position to attach the prepared RFID tag to the cargo;

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

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

[0054] Step 5: Tag activation and identification. Goods with RFID tags enter the identification area of ​​the reader. The reader automatically emits a specific electromagnetic wave signal. The tag antenna receives the signal and generates current in the circuit inside the tag, which activates 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.

[0055] Step 6: Data transmission processing, the reader transmits the identified cargo information to the management system through the network;

[0056] Step 7: Cargo monitoring and early warning: Use tags to identify the inventory in the current storage room and compare it with the set threshold. If the inventory is lower than the set threshold, the system automatically issues a replenishment warning.

[0057] 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 cargo storage room information, and calibrate them as dc, js, yt and wc respectively, and perform normalization analysis on them. According to the formula hr=e a1*dc+a2*js +ln(a3*yt+a4*wc) to get the cargo environmental disturbance value hr, where a1, a2, a3 and a4 are correction factor coefficients of 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 of various parameters in the calculation process of the formula, so as to make the calculation of parameter data more accurate. e is a 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 volume of various metals in the cargo storage room and the magnetic permeability of the corresponding metals multiplied by the adjustment factor, and the liquid interference factor coefficient refers to the sum of the products of the volume of various liquids in the cargo storage room and the electrical conductivity of the corresponding liquids multiplied by the adjustment factor;

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

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

[0062] Obtain the temperature information of the cargo storage room in the cargo storage room information, and divide the storage time period into several sub-time periods m, calibrated as cw m , m is the number of the sub-time period, m = 1, 2, 3...M, M range is a positive integer, the temperature values ​​of the storage room are sorted in chronological order, the temperature value in the latter order is subtracted from the temperature value in the former order to obtain the sub-temperature difference value, and the sum of them is calculated to obtain the sub-total temperature difference value, according to the set formula Obtain the sub-total temperature state value zw, where M1 is the reference temperature value set for the storage room, where f1 and f2 are the correction factor coefficients of the temperature of the sub-time period in different cases in the formula, respectively, where f1>f2; convert the sub-total temperature difference value and the sub-total temperature state value into lengths according to a certain ratio, construct an ellipse with the lengths of the sub-total temperature difference value and the sub-total temperature state value as the long side and the short side of the ellipse respectively, identify the area of ​​the ellipse, and mark it as the temperature difference interference factor coefficient wc;

[0063] It should also be noted that the larger the value of the cargo environmental interference value is, the more serious the data information of the cargo is affected by the transmission environment interference;

[0064] Step 102: setting environmental disturbance reference ranges T1, T2, and T3 for environmental disturbance values ​​of goods, and substituting the environmental disturbance values ​​of goods into the preset environmental disturbance reference ranges T1, T2, and T3 for comparative analysis, wherein the environmental disturbance reference ranges T1, T2, and T3 decrease in a gradient manner;

[0065] It should be noted that, assuming that the ambient interference reference ranges T1, T2, and T3 are reduced in a gradient of 10, when the ambient interference reference range T1 is set to 120-90, the ambient interference reference range T2 can be set to 89-60, and the attenuation reference range T3 can be set to 59-30, and the setting of the range values ​​of the ambient interference reference ranges T1, T2, and T3, as well as the setting of the gradient reduction value, are all specifically set by those skilled in the art in specific cases;

[0066] When the cargo environmental disturbance value is within the preset environmental disturbance reference range T1, a signal indicating a high degree of interference in data transmission is generated; when the cargo environmental disturbance value is within the preset environmental disturbance reference range T2, a signal indicating a moderate degree of interference in data transmission is generated; and when the cargo environmental disturbance value is within the preset environmental disturbance reference range T3, a signal indicating a slight degree of interference in data transmission is generated.

[0067] The cargo characteristic requirement signal specifically includes the following steps:

[0068] Step 103: Obtain the signal impact value, storage requirement value, reading distance and data storage value of each cargo in the cargo information, and mark them as bx, wx, dj and sc respectively, and perform normalization analysis on them. According to the formula The special value txz of the goods is obtained, where h1, h2, h3 and h4 are correction factor coefficients of the goods' surface signal impact value, storage demand value, reading distance and data storage value, respectively, and h1, h2, h3 and h4 are all natural numbers greater than 0. The correction factor coefficient is used to correct the deviation of various parameters in the calculation process of the formula, so as to calculate more accurate parameter data;

[0069] It should be noted that the surface signal impact value refers to the weighted calculation of the surface roughness of the goods and the conductivity of the surface coating, and multiplied by the corresponding impact factor; the storage demand value refers to the weighted calculation of the logistics speed and storage time of the goods, and multiplied by the corresponding impact factor; the data storage value refers to the numerical value of the number of information that needs to be stored for the goods, and the specific storage information is product specifications, production date, batch number, manufacturer, etc.

[0070] Step 104: setting a reference interval Q1 of the special demand value of the goods, and performing a comparative analysis between the special demand value of the goods and the preset reference interval Q1;

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

[0072] The comprehensive cargo demand set specifically includes the following steps:

[0073] Step 105: assigning and calibrating each determination signal in the data transmission interference degree signal and the cargo characteristic requirement signal;

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

[0075] At the same time, the calibrated score values ​​in each type of judgment signal are captured, and each calibrated score value is added and analyzed to obtain the comprehensive value H of each cargo; each cargo is graded according to the comprehensive value of cargo, when the comprehensive value of cargo is X3+Z3 or X2+Z3 or X3+Z2, the corresponding cargo is graded 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 graded 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 graded into the third-level cargo comprehensive demand set A3;

[0076] The matching analysis between the RFID tag and the comprehensive demand set of goods specifically includes the following steps:

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

[0078] The RFID tag of the unique corresponding identification code specifically includes the following steps:

[0079] Step 201: Obtain the commercial value, supply and demand value, and hazardous value of the goods in the goods information, and mark them as sj, gh, and wf respectively, and perform normalization analysis on them. According to the formula Get the required value bxz of the goods, j1, j2 and j3 are the set correction factor coefficients;

[0080] It should be noted that the supply and recycling demand value refers to the weighted calculation of the values ​​of the links involved from the beginning to the end of the goods identification and the degree of refinement required for goods management, multiplied by the corresponding correction factor coefficient; the hazardous and corrosive value refers to the weighted calculation of the value of property loss caused by the goods, the reciprocal of the degree of personal injury and disability caused, and the reciprocal of the shelf life of the goods, multiplied by the corresponding correction factor coefficient;

[0081] It is also worth pointing out that the specific operation process of the commercial value of goods is as follows:

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

[0083] Set a 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 demand value of the goods is less than the preset reference threshold XX1, the corresponding goods are classified into the third-level goods identification 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 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 demand set B1;

[0085] When the goods are in the first-level goods identification requirement set B1, the RFID tag identification code is selected as a dynamic code identification code; when the goods are in the second-level goods identification requirement set B2, the RFID tag identification code is selected as a QR code; when the goods are in the third-level goods identification requirement set B3, the RFID tag identification code is selected as a simple digital code;

[0086] The matching of the corresponding reader specifically includes the following steps:

[0087] Step 301: Convert the cargo environmental disturbance value hr and the cargo special demand value txz into lengths according to a certain ratio, and construct a cylinder with the lengths of the cargo environmental disturbance value hr and the cargo special demand value txz as the bottom circle radius and the height of the cylinder respectively; convert the cargo standard demand value bxz into lengths according to a certain ratio, and construct a cube with the length of the cargo standard demand value bxz as the side length of the cube. The center of the top surface of the cylinder coincides with the center of the square of the bottom surface of the cube, and the non-overlapping volume formed by the cylinder and the cube is identified and marked as the total cargo demand value;

[0088] Set a reference threshold XX2 for the total demand value of goods, and compare and analyze the total demand value of goods with the preset reference threshold XX2. When the total demand value of goods is less than the preset reference threshold XX2, it is counted as low comprehensive demand goods. When the total demand value of goods is equal to the preset reference threshold XX2, it is counted as medium comprehensive demand goods. When the total demand value of goods is higher than the preset reference threshold XX2, it is counted as high comprehensive demand goods. The number of low comprehensive demand goods, medium comprehensive demand goods and high comprehensive demand goods in the storage room is counted respectively, marked as dz, zz and gz, and the occupancy rate of low comprehensive demand goods and high comprehensive demand goods is counted, marked as zdz and zgz. According to the set formula The comprehensive demand value czx of the storage room is obtained, r4 and r5 are the correction factor coefficients of the occupancy rate of high comprehensive demand goods and the occupancy rate of low comprehensive demand goods respectively;

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

[0090] When the storage room is in the first-level storage room comprehensive demand set D1, the storage room is selected to be equipped with intelligent interference detection, encrypted communication, and solid-state hard disk readers; when the storage room is in the second-level storage room comprehensive demand set D2, the storage room is selected to be equipped with a reader with frequency agility function, data integrity verification function, and support for data compression function; when the storage room is in the third-level storage room comprehensive demand set D3, the storage room is selected to be an entry-level low-frequency reader;

[0091] The above is an explanation of the present invention and should not be considered as a limitation thereof. Although several exemplary embodiments of the present invention have been described, it will be readily appreciated by those skilled in the art that many modifications may 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 in the claims. It should be understood that the above is an explanation of the present invention and should not be considered as being 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. A method for intelligent identification of RFID tags, characterized in that: The following steps are involved: Step 1: Label production: Analyze the cargo characteristics and environmental interference in the cargo information to obtain a comprehensive cargo demand set, match the comprehensive cargo demand set with the RFID tag type, obtain the tag type, use the obtained label production, and encapsulate the RFID chip and antenna in the label material; Step 2: Matching and attaching: Analyze the cargo information, obtain the cargo identification requirement set, match it with the identification code of the RFID tag, and generate an RFID tag with a unique corresponding identification code; select the corresponding position of the prepared RFID tag and attach it to the cargo; Step 5: Tag activation and identification. Goods with RFID tags enter the identification area of ​​the reader. The reader automatically emits a specific electromagnetic wave signal. The tag's antenna receives the electromagnetic wave signal and generates current in the circuit inside the tag, thereby activating the tag to enter the working state. The activated tag reflects the stored cargo information back to the reader in the form of a radio frequency signal. The reader receives the cargo information sent by the tag and completes the identification of the cargo information.

2. The RFID tag intelligent identification method according to claim 1, characterized in that: The matching of the comprehensive cargo demand set with the RFID tag type specifically includes the following steps: The data transmission interference degree signal and each judgment signal in the cargo characteristic demand signal are assigned and calibrated; the data transmission interference degree slight signal, the data transmission interference degree medium signal and the data transmission interference degree large signal in the data transmission interference degree signal are assigned and calibrated as X1, X2 and X3 respectively; the first-level cargo characteristic demand signal, the second-level cargo characteristic demand signal and the third-level cargo characteristic demand signal in the cargo characteristic demand signal are assigned and calibrated as Z3, Z2 and Z1 respectively, where X1 <X2<X3,Z1<Z2<Z3; At the same time, the calibrated score values ​​in each type of judgment signal are captured, and each calibrated score value is added and analyzed to obtain the comprehensive value H of each cargo; each cargo is graded according to the comprehensive value of cargo, when the comprehensive value of cargo is X3+Z3 or X2+Z3 or X3+Z2, the corresponding cargo is graded 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 graded 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 graded into the third-level cargo comprehensive demand set A3; Step 106: When the goods are in the first-level comprehensive demand set A1, the RFID tag is selected as an anti-metal ultra-high frequency tag with an operating frequency of 300MHz-3GHz; when the goods are in the second-level comprehensive demand set A2, the RFID tag is selected as an anti-metal high frequency tag with an operating frequency of 3MHz-30MHz; when the goods are in the third-level comprehensive demand set A3, the RFID tag is selected as a low-frequency tag with an operating frequency of 30kHz-300kHz.

3. The RFID tag intelligent identification method according to claim 2, characterized in that: The data transmission interference degree signal specifically comprises the following steps: Step 101: Obtain the liquid interference factor coefficient, metal interference factor coefficient, electromagnetic interference factor coefficient and temperature difference interference factor coefficient in the cargo storage room information, and calculate the cargo environmental interference value hr by formula; Step 102: setting environmental disturbance reference ranges T1, T2, and T3 for environmental disturbance values ​​of goods, and substituting the environmental disturbance values ​​of goods into the preset environmental disturbance reference ranges T1, T2, and T3 for comparative analysis, wherein the environmental disturbance reference ranges T1, T2, and T3 decrease in a gradient manner; When the cargo environmental interference value is within the preset environmental interference reference range T1, a signal indicating a high degree of interference to data transmission is generated; when the cargo environmental interference value is within the preset environmental interference reference range T2, a signal indicating a moderate degree of interference to data transmission is generated; and when the cargo environmental interference value is within the preset environmental interference reference range T3, a signal indicating a slight degree of interference to data transmission is generated.

4. The RFID tag intelligent identification method according to claim 3, characterized in that: The electromagnetic interference factor coefficient and the temperature difference interference factor coefficient specifically include the following steps: Obtain the power of each radiation source, antenna gain and distance between the cargo and the radiation source in the cargo storage room information, and calculate the magnetic internal disturbance intensity nr; obtain the vertical distance, horizontal distance and high-voltage line power between the external high-voltage transmission line and the cargo in the cargo information, and analyze and obtain the magnetic external disturbance intensity wr; perform weighted calculation on the magnetic internal disturbance intensity and the magnetic external disturbance intensity, and multiply them by the corresponding influencing factors to obtain the electromagnetic interference factor coefficient dc; The temperature information of the cargo storage room in the cargo storage room information within the time period is obtained, the storage time period is divided into a number of sub-time periods m, and the temperature difference interference factor coefficient wc is obtained by calculation, analysis and graphic construction.

5. The RFID tag intelligent identification method according to claim 2, characterized in that: The cargo characteristic demand signal specifically includes the following steps: Step 103: Obtain the representative signal impact value, storage demand value, reading distance and data storage value of each cargo in the cargo information, and calculate the cargo special demand value txz through a formula; Step 104: setting a reference interval Q1 of the special demand value of the goods, and performing a comparative analysis between the special demand value of the goods and the preset reference interval Q1; 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.

6. The RFID tag intelligent identification method according to claim 1, characterized in that: The matching with the identification code of the RFID tag comprises the following steps: Step 201: Obtain the commercial value, supply and recycling demand value, and hazardous and corrosive value of the goods in the goods information, and analyze and obtain the standard demand value bxz of the goods; Set a 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; 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 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 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 demand set B1; When the goods are in the first-level goods identification requirement set B1, the RFID tag identification code is selected as a dynamic coding identification code; when the goods are in the second-level goods identification requirement set B2, the RFID tag identification code is selected as a QR code; when the goods are in the third-level goods identification requirement set B3, the RFID tag identification code is selected as a simple digital code.

7. The RFID tag intelligent identification method according to claim 6, characterized in that: The commercial value of the goods includes the following steps: 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 based on the formula.

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

9. The RFID tag intelligent identification method according to claim 8, characterized in that: The matching of the corresponding readers comprises the following steps: Step 301: Graph the environmental disturbance value hr, the special demand value txz and the standard demand value bxz of the goods, and analyze and obtain the total demand value of the goods; Set a reference threshold XX2 for the total demand value of goods, compare and analyze the total demand value of goods with the preset reference threshold XX2, and calculate the total demand value czx of the storage room through the formula; Step 302: Set a reference threshold XX3 for the storage room's comprehensive demand value. When the total demand value of the goods is less than the preset reference threshold XX3, the corresponding storage room is divided into the third-level storage room comprehensive demand set D3. When the storage room's comprehensive demand value is equal to the preset reference threshold XX3, the corresponding storage room is divided into the second-level storage room comprehensive demand set D2. When the storage room's comprehensive demand value is greater than the preset reference threshold XX3, the corresponding storage room is divided into the first-level storage room comprehensive demand set D1. Select the corresponding reader based on D1, D2 and D3.

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