T10 material management system and method based on RFID reader

Abstract

The invention relates to the technical field of material management, in particular to a T10 material management system and method based on an RFID reader. Comprising an RFID tag management module, an RFID reading management module, a material detection module, an inventory management module, a data storage module and a display module. According to the invention, the RFID tag management module writes data information of materials into RFID tags and establishes communication with an RFID reader in the RFID reading management module, and the inventory management module identifies the RFID tags by using the RFID reader and generates a log of the day, so that statistics of the number of products in a warehouse is realized; and a plurality of non-inductive sensors in the material detection module are used for detecting the temperature around the unfrozen product and changing the unfreezing time information in the RFID tag, so that the unfreezing time of the frozen product is adjusted in real time, the ex-warehouse speed of the product is increased, and the ex-warehouse quality of the product is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of material management, and in particular to a T10 material management system and method based on an RFID reader. Background Art

[0002] RFID readers activate RFID tags within their working range by emitting radio frequency signals of a specific frequency. After receiving the signal, the tag uses the energy obtained from the induced current to send out the information stored in the chip, or actively sends a signal of a certain frequency. The reader receives and decodes these signals, extracts the data from the tag, and then transmits it to the central information system for further processing and analysis. The T10 material management system is a software system specifically used for enterprise resource planning. It mainly helps enterprises manage their material-related affairs, including procurement, inventory management, production planning, etc. The system aims to improve the operational efficiency of the enterprise, reduce costs, and ensure the rational use of materials.

[0003] At present, when some frozen products enter the freezer, the product information needs to be marked. If the method of manually scanning and recording the materials step by step is adopted, it is not only inefficient, but also wastes a lot of manpower and material resources. At the same time, the frozen products need to be thawed in advance before leaving the warehouse. Under the influence of the external environment, the thawing time of the product is also changing. If the same thawing time is always used, the quality of the product will be reduced. Therefore, we propose a T10 material management system and method based on RFID reader. Summary of the invention

[0004] The object of the present invention is to provide a T10 material management system and method based on an RFID reader to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, one of the purposes of the present invention is to provide a T10 material management system based on an RFID reader, including an RFID tag management module, an RFID reading management module, a material detection module, an inventory management module, a data storage module and a display module; The RFID tag management module writes the relevant data of the materials into the tag when the materials are put into storage, including the storage time, production date, storage location information and thawing time information when they are taken out. After the tag is generated, it is tested whether the tag can work normally, and then it is bound to the materials and stored in the designated location in the refrigerator; The RFID reader in the RFID reading management module transmits a radio frequency signal. When the RFID tag moves into the range of the radio frequency signal, the internal chip circuit of the RFID tag is activated, and the information stored in the RFID tag is sent to the RFID reading management module in the form of a radio frequency signal to read the information stored in the tag; The inventory management module identifies the RFID tag through the RFID reader in the RFID reading management module, records the in-and-out information of materials, identifies the RFID tags in the inventory by adjusting the range of the RFID reader transmitting the radio frequency signal, counts the types and quantities of materials in the warehouse, and issues a replenishment warning for products whose material quantity is below the warning line, and issues a discard warning for products whose material information in the RFID tag is about to expire; When the product is thawed in advance, the material detection module monitors the thawing status of the product in real time through the non-sensing sensor network. If the thawing time of the product is different from the time recorded in the RFID tag, the real-time monitored thawing time information is transmitted to the data storage module for storage. If the thawing time is different from the thawing time information recorded in the RFID tag for three consecutive times, a change signal is transmitted to the RFID tag management module to change the thawing time information in the RFID tag. The data storage module is used to store the thawing time information transmitted by the material detection module, the material in-and-out information of the inventory management module, and the log information of the warehouse; The display module is used to display the product information in the RFID tag, and through the search function, quickly retrieve the corresponding RFID tag to find the location of the product.

[0006] Preferably, the RFID tag management module includes a tag generation unit and a tag detection unit. The tag generation unit writes the basic data of the material into the tag to generate the RFID tag, and uses the ultra-high frequency communication protocol to establish a communication channel between the RFID tag and the RFID reader. The communication frequency of the ultra-high frequency communication protocol is between 860MHz and 960MHz, and has the advantages of long reading distance, fast recognition speed, and the ability to recognize a large number of tags at the same time, which can meet the needs of fast and accurate identification of items in large-scale logistics transportation and warehousing management; The tag detection unit uses a network analyzer to detect parameters such as impedance, reflection coefficient, and transmission coefficient of the RFID tag. If the measurement results meet the design requirements of the tag, it means that the tag has good performance and can effectively receive and send radio frequency signals.

[0007] Preferably, when the tag generation unit writes data into the RFID tag, Manchester encoding is used, and a negative transition at half a bit period represents a binary "1", and a positive transition at half a bit period represents a binary "0". Load modulation or backscatter modulation of a load wave is used. When data is transmitted between the RFID tag and the RFID reader, it is helpful to detect errors in data transmission, and the receiving end can use the transition as a synchronization clock.

[0008] Preferably, the inventory management module includes an in-and-out management unit, an inventory counting unit, and an inventory early warning unit. The in-and-out management unit uses an RFID reader to identify the RFID tag bound to the material, records the out-and-out information and in-and-out information of the material, and sorts the products according to the in-and-out time of the products. When out-and-out, the products are out-and-out in the order of their entry, so as to achieve first-in-first-out. The inventory counting unit activates the RFID tags in the warehouse by expanding the range of the RFID reader's radio frequency signal transmission, counts the types and quantities of products in the warehouse, and forms a log for the day. At the same time, it generates a replenishment signal for products whose inventory quantity is lower than the warning quantity, and generates a discard signal for products whose storage time exceeds the shelf life, and transmits the signal to the inventory warning unit; The inventory warning unit receives the replenishment signal and the discard signal transmitted by the inventory counting unit, and sends a blue replenishment warning and a red discard warning to the display module to remind the staff to replenish or discard the product.

[0009] Preferably, the in-and-out warehouse management unit adopts a queue data structure when implementing first-in-first-out, a linear table that only allows insertion operations, i.e., entry into the queue, at one end and deletion operations, i.e., exit from the queue, at the other end, just like queuing in life, where those who come first receive service first and those who come later receive service later.

[0010] Preferably, when the inventory counting unit stores the logs of the day, the logs are stored in a non-relational database, which can adapt to different data structures and formats without pre-defining a strict data model.

[0011] Preferably, the material detection module includes a sensor detection unit, and the sensor detection unit detects the temperature around the thawed product through a plurality of non-conductive sensors, thereby determining the thawing state of the product and recording the corresponding thawing time.

[0012] Preferably, the display module includes an MMS display panel and a tag search unit, wherein the MMS display panel is used to display the data information in the RFID tag, and to display the location, status, transportation progress and other information of the goods, so as to track the flow of goods in real time and improve the efficiency and accuracy of logistics management; The tag search unit is used to retrieve the RFID tag information of the entire warehouse, retrieve the corresponding RFID tag according to the product-related information, and realize the rapid positioning of the product.

[0013] Preferably, the tag search unit adopts a keyword search method. When the user enters a keyword for search, the search system will quickly locate the data item containing the keyword according to the index. Then, the search system will search for records matching the keyword in the index, return the relevant data items, and retrieve the corresponding RFID tag information.

[0014] A second object of the present invention is to provide a T10 material management method based on an RFID reader, including any one of the T10 material management systems based on an RFID reader described above, comprising the following steps: S1. Write the data information of the material into the RFID tag through the RFID tag management module, and establish communication with the RFID reader in the RFID reading management module; S2, the inventory management module uses the RFID reader to identify the RFID tag, record the in-and-out information of materials, and generate a log for the day. At the same time, it issues corresponding replenishment warnings and waste warnings; S3, using the material detection module to monitor the thawing status of the thawed product, if the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, then transmitting a change signal to the RFID tag management module to change the thawing time information in the RFID tag; S4. Use the data storage module to store the RFID tag information and the thawing time information, and use the display module to display the product information in the RFID tag and the search function.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The T10 material management system based on RFID reader writes the data information of materials into RFID tags through RFID tag management module, so that RFID tags record the storage time, production date, storage location information and thawing time information of materials when taken out, and establish communication with the RFID reader in the RFID reading management module. The inventory management module uses RFID reader to identify RFID tags, records the information of materials entering and leaving the warehouse, and produces a log of the day. At the same time, it issues replenishment warnings for products whose material quantity is lower than the warning line, and issues discard warnings for products whose material information in the RFID tag is about to expire, so as to realize the statistics of the number of products in the warehouse, improve the accuracy and efficiency of inventory management, reduce inventory costs, and enhance the competitiveness of enterprises. The temperature of the thawed product is detected by multiple non-contact sensors in the material detection module to determine the thawing status of the product and record the corresponding thawing time. If the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, the change signal is transmitted to the RFID tag management module to change the thawing time information in the RFID tag, so as to realize real-time adjustment of the thawing time of the frozen product, save resources, speed up the product delivery rate, and ensure the product delivery quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall flow chart of the present invention; Figure 2 This is a flow chart of the RFID tag management module of the present invention; Figure 3 It is a flow chart of the inventory management module of the present invention; Figure 4 is a flow chart of the display module of the present invention; Figure 5 The figure is a flowchart of the method of the present invention.

[0017] The meaning of each number in the figure is: 100, RFID tag management module; 110, tag generation unit; 120, tag detection unit; 200, RFID reading management module; 300, inventory management module; 310, in-and-out warehouse management unit; 320, inventory counting unit; 330, inventory warning unit; 400, material detection module; 410, sensor detection unit; 500, data storage module; 600, display module; 610, MMS display board; 620, tag search unit. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] RFID readers activate RFID tags within their working range by emitting radio frequency signals of a specific frequency. After receiving the signal, the tag uses the energy obtained from the induced current to send out the information stored in the chip, or actively sends a signal of a certain frequency. The reader receives and decodes these signals, extracts the data from the tag, and then transmits it to the central information system for further processing and analysis. The T10 material management system is a software system specifically used for enterprise resource planning. It mainly helps enterprises manage their material-related affairs, including procurement, inventory management, production planning, etc. The system aims to improve the operational efficiency of the enterprise, reduce costs, and ensure the rational use of materials.

[0020] like Figure 1 As shown, one of the purposes of the present invention is to provide a T10 material management system based on an RFID reader, including an RFID tag management module 100, an RFID reading management module 200, a material detection module 300, an inventory management module 400, a data storage module 500 and a display module 600; When materials enter the warehouse, the RFID tag management module 100 writes the relevant data of the materials into the tag, including the storage time, production date, storage location information and thawing time information when taking out. After the tag is generated, it is tested whether the tag can work normally, and then it is bound to the materials and stored in the designated location in the refrigerator. The RFID reader in the RFID reading management module 200 transmits a radio frequency signal. When the RFID tag moves into the range of the radio frequency signal, the internal chip circuit of the RFID tag is activated, and the information stored in the RFID tag is sent to the RFID reading management module 200 in the form of a radio frequency signal to read the information stored in the tag; The inventory management module 300 uses the RFID reader in the RFID reading management module 200 to identify the RFID tag, record the in-and-out information of the materials, and identify the RFID tags in the inventory by adjusting the range of the RFID reader transmitting the radio frequency signal, and count the types and quantities of the materials in the warehouse, and issue a replenishment warning for the products whose material quantity is below the warning line, and issue a discard warning for the products whose material information in the RFID tag is about to expire; When the product is thawed in advance, the material detection module 400 monitors the thawing status of the product in real time through the non-conductive sensor network. If the thawing time of the product is different from the time recorded in the RFID tag, the real-time monitored thawing time information is transmitted to the data storage module 500 for storage. If the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, a change signal is transmitted to the RFID tag management module 100 to change the thawing time information in the RFID tag. The data storage module 500 is used to store the thawing time information transmitted by the material detection module 400, the material in-and-out information of the inventory management module 300, and the log information of the warehouse; The product information in the RFID tag is displayed through the display module 600, and the corresponding RFID tag is quickly retrieved through the search function to find the location of the product.

[0021] like Figure 2 As shown, the RFID tag management module 100 includes a tag generation unit 110 and a tag detection unit 120. The tag generation unit 110 writes the basic data of the material into the tag to generate the RFID tag, and uses the ultra-high frequency communication protocol to establish a communication channel between the RFID tag and the RFID reader. The communication frequency of the ultra-high frequency communication protocol is between 860MHz and 960MHz, and has the advantages of long reading distance, fast recognition speed, and the ability to recognize a large number of tags at the same time, which can meet the needs of fast and accurate identification of items in large-scale logistics transportation and warehousing management; Among them, the RFID reader transmits a specific ultra-high frequency signal, generally between 860MHz and 960MHz. The signal contains instructions and energy. This signal forms an electromagnetic field in space and covers a certain range. When the RFID tag enters the signal coverage range of the RFID reader, the RFID tag will receive the radio frequency signal emitted by the RFID reader, obtain energy, activate the internal chip circuit, and reflect the information stored in the chip back to the RFID reader through the antenna in the form of a radio frequency signal. At the same time, the received signal is demodulated, decoded, and processed to extract the information stored in the RFID tag.

[0022] The tag detection unit 120 uses a network analyzer to detect parameters such as impedance, reflection coefficient, and transmission coefficient of the RFID tag. If the measurement results meet the design requirements of the tag, it means that the tag has good performance and can effectively receive and send radio frequency signals.

[0023] In order to ensure that no error occurs in the data in the RFID tag during transmission, the tag generation unit 110 uses Manchester encoding when writing data into the RFID tag. A negative jump in half a bit period represents a binary "1", and a positive jump in half a bit period represents a binary "0". Load modulation or backscatter modulation of the load wave is used. When data is transmitted between the RFID tag and the RFID reader, it is helpful to find errors in data transmission, and the receiving end can use the jump as a synchronization clock. The receiving end can accurately determine the bit boundary of the data, thereby reducing the bit error rate in data transmission. Even if the signal is interfered or attenuated, the receiving end can still recover the data by detecting the level jump. In addition, each bit of Manchester encoded data contains two level changes, which makes the signal spectrum richer and more anti-interference.

[0024] like Figure 3 As shown, the inventory management module 300 includes an in-and-out management unit 310, an inventory counting unit 320, and an inventory early warning unit 330. The in-and-out management unit 310 uses an RFID reader to identify the RFID tag bound to the material, records the out-and-out information and in-and-out information of the material, and sorts the products according to the in-and-out time of the products. When out-and-out, the products are out-and-out in the order of their in-and-out time, so as to achieve first-in-first-out. The inventory counting unit 320 activates the RFID tags in the warehouse by expanding the range of the RFID reader's radio frequency signal transmission, and counts the types and quantities of products in the warehouse to form a log for the day. At the same time, it generates a replenishment signal for products whose inventory quantity is lower than the warning quantity, and generates a discard signal for products whose storage time exceeds the shelf life, and transmits the signal to the inventory warning unit 330; The inventory warning unit 330 receives the replenishment signal and the discard signal transmitted by the inventory counting unit 320, and sends a blue replenishment warning and a red discard warning to the display module 600 to remind the staff to replenish or discard the product; In order to implement the principle of first-in, first-out when products are in and out of the warehouse, the warehouse in and out management unit 310 adopts a queue data structure when implementing first-in, first-out, which is a linear table that only allows insertion operations at one end, i.e., entry, and deletion operations at the other end, i.e., exit. Just like queuing in life, the first comer is served first, and the later comer is served later. Among them, the queue is a special linear table data structure, which follows the first-in-first-out principle. For the enqueue operation, suppose there is an initially empty queue, and elements 1, 2, and 3 are enqueued in turn. First, element 1 is added to the end of the queue. At this time, the head of the queue points to element 1, and the tail of the queue also points to element 1. Then, element 2 is enqueued, and the tail of the queue moves back one position to point to element 2. Finally, element 3 is enqueued, and the tail of the queue moves back again to point to element 3. For the queue that already has elements 1, 2, and 3, the dequeue operation is performed. First, element 1 pointed to by the head of the queue is deleted, and the head of the queue moves back one position to point to element 2. Then, the queue is dequeued again, element 2 is deleted, and the head of the queue continues to move to point to element 3, thereby realizing the first-in-first-out of the product.

[0025] In order to better store the daily logs of the warehouse, the inventory counting unit 320 stores the logs of the day in a non-relational database. The non-relational database can adapt to different data structures and formats, without the need to pre-define strict data models. The structure of the log data is determined based on the log requirements of the day, and the functions of the index support and query language are expanded to facilitate the detection and query of the logs.

[0026] The material detection module 400 includes a sensor detection unit 410. The sensor detection unit 410 detects the temperature around the thawed product through a plurality of non-inductive sensors, thereby determining the thawing state of the product and recording the corresponding thawing time. The infrared detector converts the received infrared radiation into an electrical signal. The signal processing circuit amplifies, filters and processes the electrical signal, and finally outputs an electrical signal or a digital signal corresponding to the measured temperature. Any object above absolute zero will emit infrared radiation. The amount of its radiation energy is related to the temperature of the object. The infrared temperature sensor determines the temperature of an object by measuring the infrared radiation energy emitted by the object.

[0027] like Figure 4 As shown, the display module includes an MMS display panel 610 and a tag search unit 620. The MMS display panel 610 is used to display the data information in the RFID tag, and to display the location, status, transportation progress and other information of the goods, so as to track the flow of goods in real time and improve the efficiency and accuracy of logistics management. The tag search unit 620 is used to retrieve the RFID tag information of the entire warehouse, retrieve the corresponding RFID tag according to the product-related information, and realize the rapid positioning of the product; In order to better retrieve the RFID tag information, the tag search unit 620 adopts a keyword search method. When the user enters a keyword for search, the search system will quickly locate the data item containing the keyword according to the index. Then, the search system will search for records matching the keyword in the index, and return the relevant data items to retrieve the corresponding RFID tag information. First, the user determines the keyword according to his own needs so as to accurately locate the target during the retrieval process. Secondly, in the tag search unit, an index can be established for the relevant information of each tag (such as tag ID, description, attributes, etc.) so as to quickly find a specific tag according to the keyword. When the user enters a keyword for retrieval, the retrieval system will quickly locate the data item containing the keyword according to the index. The retrieval system will analyze and process the input keyword, remove stop words, perform stem extraction and other operations to improve the accuracy of the retrieval. Then, the retrieval system will search for records matching the keyword in the index and return the relevant data items. If there are multiple keywords, a combined search can be performed through logical operators (such as AND, OR, NOT) to further narrow or expand the search scope until the corresponding RFID tag information is retrieved. The staff can realize the positioning of the product to the RFID tag through the tag search unit 620, and obtain the location information of the corresponding product and other basic information such as thawing information from the RFID tag.

[0028] like Figure 5 As shown, the second object of the present invention is to provide a T10 material management method based on an RFID reader, including any one of the above-mentioned T10 material management systems based on an RFID reader, comprising the following steps: S1, write the data information of the material into the RFID tag through the RFID tag management module 100, and establish communication with the RFID reader in the RFID reading management module 200; S2, the inventory management module 300 uses the RFID reader to identify the RFID tag, records the inbound and outbound information of materials, and generates a log for the day. At the same time, it issues corresponding replenishment warnings and waste warnings; S3, using the material detection module 400 to monitor the thawing status of the thawed product, if the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, then transmitting a change signal to the RFID tag management module 100 to change the thawing time information in the RFID tag; S4. The RFID tag information and the thawing time information are stored by the data storage module 500, and the product information in the RFID tag is displayed by the display module 600, as well as the search function.

[0029] In summary, the T10 material management system based on RFID reader writes the data information of the material into the RFID tag through the RFID tag management module 100, so that the RFID tag records the storage time, production date, storage location information and thawing time information of the material when it is taken out, and establishes communication with the RFID reader in the RFID reading management module 200. The inventory management module 300 uses the RFID reader to identify the RFID tag, records the information of the material entering and leaving the warehouse, and produces a log of the day. At the same time, it issues a replenishment warning for the products whose material quantity is lower than the warning line, and issues a replenishment warning for the products whose material information in the RFID tag is about to expire. The product discard warning is issued, the number of products in the warehouse is counted, the accuracy and efficiency of inventory management are improved, the inventory cost is reduced, and the competitiveness of the enterprise is enhanced. The multiple non-conductive sensors in the material detection module 400 are used to detect the temperature around the thawed product to determine the thawing state of the product and record the corresponding thawing time. If the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, the change signal is transmitted to the RFID tag management module 100 to change the thawing time information in the RFID tag, so as to realize the real-time adjustment of the thawing time of the frozen product, save resources, speed up the product outbound rate, and ensure the outbound quality of the product.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A T10 material management system based on RFID reader, characterized by: It comprises an RFID tag management module (100), an RFID reading management module (200), a material detection module (300), an inventory management module (400), a data storage module (500) and a display module (600); The RFID tag management module (100) writes relevant data of the materials into the tag when the materials are put into storage, including storage time, production date, storage location information and thawing time information when taken out; after the tag is generated, it is tested whether the tag can work normally, and then it is bound to the materials and stored in a designated location in the refrigerator; The RFID reader in the RFID reading management module (200) transmits a radio frequency signal, and when the RFID tag moves into the range of the radio frequency signal, the chip circuit inside the RFID tag is activated, and the information stored in the RFID tag is sent to the RFID reading management module (200) in the form of a radio frequency signal, and the information stored in the tag is read; The inventory management module (300) identifies the RFID tag through the RFID reader in the RFID reading management module (200), records the in-and-out information of the materials, identifies the RFID tags in the inventory by adjusting the range of the radio frequency signal emitted by the RFID reader, counts the types and quantities of the materials in the warehouse, issues a replenishment warning for products whose material quantity is below the warning line, and issues a discard warning for products whose material information in the RFID tag is about to expire; When the product is thawed in advance, the material detection module (400) monitors the thawing status of the product in real time through the non-sensing sensor network. If the thawing time of the product is different from the time recorded in the RFID tag, the real-time monitored thawing time information is transmitted to the data storage module (500) for storage. If the thawing time is different from the thawing time information recorded in the RFID tag for three consecutive times, a change signal is transmitted to the RFID tag management module (100) to change the thawing time information in the RFID tag. The data storage module (500) is used to store the thawing time information transmitted by the material detection module (400), the material in-and-out information of the inventory management module (300), and the log information of the warehouse; The display module (600) is used to display product information in the RFID tag and, through a search function, quickly retrieve the corresponding RFID tag to find the location of the product.

2. The T10 material management system based on RFID reader according to claim 1, characterized in that: The RFID tag management module (100) comprises a tag generation unit (110) and a tag detection unit (120). The tag generation unit (110) writes basic data of the material into the tag to generate an RFID tag, and uses an ultra-high frequency communication protocol to establish a communication channel between the RFID tag and the RFID reader. The communication frequency of the ultra-high frequency communication protocol is between 860 MHz and 960 MHz, and has the advantages of long reading distance, fast recognition speed, and the ability to recognize a large number of tags at the same time, and can meet the needs of rapid and accurate identification of items in large-scale logistics transportation and warehousing management; The tag detection unit (120) uses a network analyzer to detect parameters such as impedance, reflection coefficient, transmission coefficient, etc. of the RFID tag. If the measurement result meets the design requirements of the tag, it means that the performance of the tag is good and it can effectively receive and send radio frequency signals.

3. The T10 material management system based on RFID reader according to claim 2, characterized in that: When the tag generation unit (110) writes data into the RFID tag, Manchester encoding is used, and a negative jump during a half bit period represents a binary "1", and a positive jump during a half bit period represents a binary "0". Load modulation or backscatter modulation of a load wave is used. When data is transmitted between the RFID tag and the RFID reader, it is helpful to find errors in data transmission, and the receiving end can use the jump as a synchronization clock.

4. The T10 material management system based on RFID reader according to claim 1, characterized in that: The inventory management module (300) comprises an in-and-out management unit (310), an inventory counting unit (320) and an inventory early warning unit (330). The in-and-out management unit (310) uses an RFID reader to identify an RFID tag bound to a material, records the out-and-out information and in-and-out information of the material, and sorts the products according to their in-and-out time. When out-and-out, the products are out-and-out in the order of their in-and-out time, so as to achieve first-in-first-out. The inventory counting unit (320) activates the RFID tags in the warehouse by expanding the range of the RFID reader transmitting radio frequency signals, counts the types and quantities of products in the warehouse, forms a log for the day, and generates a replenishment signal for products whose inventory quantity is lower than the warning quantity, generates a discard signal for products whose storage time exceeds the shelf life, and transmits the signal to the inventory warning unit (330); The inventory warning unit (330) receives the replenishment signal and the discard signal transmitted by the inventory counting unit (320), and sends a blue replenishment warning and a red discard warning to the display module (600), reminding the staff to replenish or discard the product.

5. The T10 material management system based on RFID reader according to claim 4, characterized in that: The in-and-out storage management unit (310) adopts a queue data structure when implementing first-in-first-out, which is a linear table that only allows insertion operations, i.e., entry into the queue, at one end and deletion operations, i.e., exit from the queue, at the other end, just like queuing in life, where the first person to arrive is served first and the last person to arrive is served later.

6. The T10 material management system based on RFID reader according to claim 4, characterized in that: When the inventory counting unit (320) stores the logs of the day, the logs are stored in a non-relational database. The non-relational database can adapt to different data structures and formats without pre-defining a strict data model.

7. The T10 material management system based on RFID reader according to claim 1, characterized in that: The material detection module (400) comprises a sensor detection unit (410), wherein the sensor detection unit (410) detects the temperature around the thawed product through a plurality of non-conductive sensors, thereby determining the thawing state of the product and recording the corresponding thawing time.

8. The T10 material management system based on RFID reader according to claim 1, characterized in that: The display module comprises an MMS display panel (610) and a tag search unit (620), wherein the MMS display panel (610) is used to display data information in the RFID tag and to display information such as the location, status, and transportation progress of the goods, so as to track the flow of the goods in real time and improve the efficiency and accuracy of logistics management; The tag search unit (620) is used to retrieve the RFID tag information of the entire warehouse, retrieve the corresponding RFID tag according to the product-related information, and realize the rapid positioning of the product.

9. The T10 material management system based on RFID reader according to claim 8, characterized in that: The tag search unit (620) adopts a keyword search method. When a user enters a keyword for search, the search system will quickly locate the data item containing the keyword according to the index. Then, the search system will search for records matching the keyword in the index, return the relevant data items, and retrieve the corresponding RFID tag information.

10. A T10 material management method based on an RFID reader, applied to the T10 material management system based on an RFID reader as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, writing data information of materials into the RFID tag through the RFID tag management module (100), and establishing communication with the RFID reader in the RFID reading management module (200); S2, the inventory management module (300) uses the RFID reader to identify the RFID tag, records the inbound and outbound information of materials, generates a log for the day, and issues corresponding replenishment warnings and waste warnings; S3, using the material detection module (400) to monitor the thawing status of the thawed product, if the thawing time for three consecutive times is different from the thawing time information recorded in the RFID tag, then transmitting a change signal to the RFID tag management module (100) to change the thawing time information in the RFID tag; S4. Using the data storage module (500) to store the RFID tag information and the thawing time information, and using the display module (600) to display the product information in the RFID tag and the search function.

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