RFID technology turns the library into a smart space

According to the survey and analysis, most of the libraries in our country have changed from the purely manual management mode to the digital management mechanism that chooses bar code recognition, computer network and computer software technology. Although many modern technologies are used, many problems still plague the management and staff of the Library.

For example, problems such as self-service borrowing and returning of books, rapid warehouse-smart-inventory-rfid-bookshelf.html target='_blank'>book inventory, search, and book sorting have not been better resolved, which hinders the library from further improving management and service levels. The library industry is also constantly striving to find more advanced technologies to realize their urgent desires.

1 Introduction to RFID technology

1.1 RFID technology concept

RFID (Radio Frequency Identification) Chinese translation is radio frequency identification. It automatically identifies the target object and obtains relevant data through radio frequency signals, without manual control. It can identify specific targets and read and write related data through radio signals without the need for mechanical or optical contact between the identification technology and specific targets.

The early application of RFID can be traced back to the stage of World War II, and its function is mainly used to identify a friend's aircraft. There are three main types of RFID electronic tags: coil type, microstrip patch type and dipole type. The RFID Antenna of the short-range software system with a working distance of less than 1m generally adopts a coil antenna with simple process and low cost, and works in the middle and low frequency bands. Software systems operating over long distances beyond 1m require the use of microstrip patch or dipole RFID antennas, operating at high frequency and microwave frequency bands.

RFID tags have the advantages of waterproof, antimagnetic, high temperature resistance, long service life, large reading distance, data encryption on the tag, large amount of Stored data, and modification of stored information. RFID Readers are also divided into mobile and fixed. At present, RFID technology is widely used, such as libraries, Access Control systems, food safety traceability, etc.

1.2 Advantages of RFID technology

RFID technology can identify high-speed moving objects and multiple tags, and the operation is fast and convenient. Short-range RF products are not afraid of harsh environments such as oil and dust pollution, and can replace barcodes in such environments, such as tracking objects on the assembly line of a factory. Long-distance radio frequency products are mostly used in traffic, and the recognition distance can reach tens of meters, such as automatic toll collection or vehicle identification. RFID can bring readers self-service borrowing, 24-hour self-service book return, fast collection inventory, fast and accurate database check update, automatic check, automatic shelf arrangement, shelf order, data storage encryption, high security, security and anti-theft, audio and video to the library. Data circulation, improve library modern management capabilities, library infrastructure and library system (ILS) seamless connection.

A complete set of RFID system is completed by the reader (Reader), the electronic tag (TAG), the so-called transponder (Transponder) and the three parts of the application software system. Its working principle is that the Reader sends electromagnetic wave energy of a specific frequency To the Transponder to drive the Transponder circuit to send internal data, and then the Reader receives and interprets the data in turn, and presents it to the application program for corresponding processing.

RFID middleware needs to provide transparent label reading and writing functions. The main issues are:

(1) Compatible with interfaces of different readers;

(2) Identify the structure of different tag memories, and perform effective read and write operations.

Through the communication and energy sensing methods between the RFID Card reader and the electronic tag, it can be roughly divided into two types: inductive coupling (Inductive Coupling) and backscatter coupling (Backscatter Coupling). Most of the RFIDs use the second method. Depending on the structure and technology, the reader can be a reading or reading/writing device, and is the information control and processing center of the RFID system. The reader is usually composed of a connection module, a transceiver module, a control module and an interface module. Information exchange is usually carried out in the form of half-duplex communication, and the reader provides energy and time sequence for the passive transponder through coupling.

1.3 The development trend of RFID technology

Electronic tags (RFID) have a dual role: on the one hand, it is used for identification, for tracking and counting objects; on the other hand, it is used for the security protection of objects. In other words, RFID also has identification and anti-theft functions. The characteristics of RFID greatly improve the data processing capability, and the data circulation process can be completed quickly and accurately through a simple single operation.

Historically, the development of RFID technology can basically be divided into several stages according to 10 years. Therefore, RFID is not a completely new technology. At present, the industry is most concerned about the medium and high frequency RFID technology, especially the 860-960MHz (UHF frequency band) long-distance RFID technology is developing the fastest; but due to the congestion of commodities, the 2.45GHz and 5.8GHz frequency bands are easily affected, and the technology is relatively complicated. and applications are still in the exploratory stage.

The RFID system consists of Tag chips, antennas and card readers, which receive information and transmit it to a computer system for processing. RFID is a technology that individually combines different interdisciplinary professional skills such as high-frequency technology, microwave and antenna technology, electromagnetic compatibility technology, semiconductor technology, data and cryptography, manufacturing technology and application technology. This is one of the most promising information technologies in this century, which has been highly valued by countries all over the world, and has been widely developed and applied. A new identification system uses smart electronic tags to identify various objects. The tag is based on the RFID (Radio Frequency Identification System) principle of radio frequency identification. In production, RFID technology embeds microchips into commodities.

Tags and readers exchange information via radio frequency signals, matching barcode technology

According to the survey and analysis, most of the libraries in our country have changed from the purely manual management mode to the digital management mechanism that chooses bar code recognition, computer network and computer software technology. Although many modern technologies are used, there are still many problems that plague the management and staff of the library.

For example, problems such as self-service borrowing and returning of books, rapid book inventory, search, and book sorting have not been better resolved, which hinders the library from further improving management and service levels. The library industry is also constantly striving to find more advanced technologies to realize their urgent desires.

1 Introduction to RFID technology

1.1 RFID technology concept

RFID (Radio Frequency Identification) Chinese translation is radio frequency identification. It automatically identifies the target object and obtains relevant data through radio frequency signals, without manual control. It can identify specific targets and read and write related data through radio signals without the need for mechanical or optical contact between the identification technology and specific targets.

The early application of RFID can be traced back to the stage of World War II, and its function is mainly used to identify a friend's aircraft. There are three main types of RFID electronic tags: coil type, microstrip patch type and dipole type. The RFID antenna of the short-range software system with a working distance of less than 1m generally adopts a coil antenna with simple process and low cost, and works in the middle and low frequency bands. Software systems operating over long distances beyond 1m require the use of microstrip patch or dipole RFID antennas, operating at high frequency and microwave frequency bands.

RFID tags have the advantages of waterproof, antimagnetic, high temperature resistance, long service life, large reading distance, data encryption on the tag, large amount of stored data, and modification of stored information. RFID readers are also divided into mobile and fixed. At present, RFID technology is widely used, such as libraries, access control systems, food safety traceability, etc.

1.2 Advantages of RFID technology

RFID technology can identify high-speed moving objects and multiple tags, and the operation is fast and convenient. Short-range RF products are not afraid of harsh environments such as oil and dust pollution, and can replace barcodes in such environments, such as tracking objects on the assembly line of a factory. Long-distance radio frequency products are mostly used in traffic, and the recognition distance can reach tens of meters, such as automatic toll collection or vehicle identification. RFID can bring readers self-service borrowing, 24-hour self-service book return, fast collection inventory, fast and accurate database check update, automatic check, automatic shelf arrangement, shelf order, data storage encryption, high security, security and anti-theft, audio and video to the library. Data circulation, improve library modern management capabilities, library infrastructure and library system (ILS) seamless connection.

A complete set of RFID system is completed by the reader (Reader), the electronic tag (TAG), the so-called transponder (Transponder) and the three parts of the application software system. Its working principle is that the Reader sends electromagnetic wave energy of a specific frequency To the Transponder to drive the Transponder circuit to send internal data, and then the Reader receives and interprets the data in turn, and presents it to the application program for corresponding processing.

RFID middleware needs to provide transparent label reading and writing functions. The main issues are:

(1) Compatible with interfaces of different readers;

(2) Identify the structure of different tag memories, and perform effective read and write operations.

Through the communication and energy sensing methods between the RFID card Reader and the electronic tag, it can be roughly divided into two types: inductive coupling (Inductive Coupling) and backscatter coupling (Backscatter Coupling). Most of the RFIDs use the second method. Depending on the structure and technology, the reader can be a reading or reading/writing device, and is the information control and processing center of the RFID system. The reader is usually composed of a connection module, a transceiver module, a control module and an interface module. Information exchange is usually carried out in the form of half-duplex communication, and the reader provides energy and time sequence for the passive transponder through coupling.

1.3 The development trend of RFID technology

Electronic tags (RFID) have a dual role: on the one hand, it is used for identification, for tracking and counting objects; on the other hand, it is used for the security protection of objects. In other words, RFID also has identification and anti-theft functions. The characteristics of RFID greatly improve the data processing capability, and the data circulation process can be completed quickly and accurately through a simple single operation.

Historically, the development of RFID technology can basically be divided into several stages according to 10 years. Therefore, RFID is not a completely new technology. At present, the industry is most concerned about the medium and high frequency RFID technology, especially the 860-960MHz (UHF frequency band) long-distance RFID technology is developing the fastest; but due to the congestion of commodities, the 2.45GHz and 5.8GHz frequency bands are easily affected, and the technology is relatively complicated. and applications are still in the exploratory stage.

The RFID system consists of Tag chips, antennas and card readers, which receive information and transmit it to a computer system for processing. RFID is a technology that individually combines different interdisciplinary professional skills such as high-frequency technology, microwave and antenna technology, electromagnetic compatibility technology, semiconductor technology, data and cryptography, manufacturing technology and application technology. This is one of the most promising information technologies in this century, which has been highly valued by countries all over the world, and has been widely developed and applied. A new identification system uses smart electronic tags to identify various objects. The tag is based on the RFID (Radio Frequency Identification System) principle of radio frequency identification. In production, RFID technology embeds microchips into commodities.

Tags and readers exchange information via radio frequency signals, matching barcode technology.

1.4.1 Self-service borrowing and returning system to improve circulation efficiency

The service content and service methods of modern libraries have undergone profound changes, from traditional libraries to service-oriented digital libraries. Modern libraries have gradually transformed from paper resources to digital resources, from in-library borrowing to remote access, from front-line services to network services, from single services to diversified services, from providing documents to providing multi-media activities, and realizing from A major shift from book-centered to people-centered.

The borrowing process of traditional library readers is relatively complicated, with a large workload, a huge amount of supervision and anti-theft, and high labor costs. Readers enter the library and want to borrow a certain book. At this time, the reader needs to go to the service desk for manual query service, and then go to the corresponding bookshelf to find the book, and then take the book to the lending desk for registration and manual degaussing of the book, so that the reader After borrowing, you can take the books through the anti-theft antenna of the library to complete the entire borrowing process.

Self-service borrowing and returning system based on RFID technology, using the self-service borrowing and returning system, readers can borrow books directly through the self-service borrowing and returning system, without degaussing books and taking books through the library anti-theft antenna. The self-service borrowing and returning system based on RFID technology can provide self-service book borrowing, self-service book return, self-service card application, book pick-up, book return pre-sorting, visual browsing surface conversion/PDP book browsing, real-time interaction with central library data, and automatic book loading. notifications and other services. The self-service borrowing and returning system provides multiple language interfaces, which can realize the borrowing/returning service of multiple books at one time. The friendly man-machine communication interface is input by touch, has offline processing function, and provides color choices that are harmonious with the library's on-site environment. Improve the circulation efficiency of book lending.

1.4.2 Intelligent Shelving System, Greatly Improves Library Work Efficiency

Relying on manual book inventory work, especially the inventory work of bookshelves is too heavy and the efficiency is very low. Librarians need to classify, place and record the books based on their own memory to check the books on the bookshelves, which is time-consuming and difficult to achieve.

The intelligent shelving system based on RFID technology is mainly composed of the circulation borrowing and returning system, the document positioning system and the document collection system. Through the establishment of shelf identification, an intelligent application environment can be constructed to realize document positioning and navigation. Book shelves are flexible and diverse, and can be implemented Full self-service, solving the problems of wrong shelves, literature shelves, shelving and automatic addressing, etc., greatly reducing the manual workload of library staff, reducing the error rate to a large extent, and greatly improving work efficiency .

1.4.3 Change the borrowing management and improve the development and utilization of literature

The work enthusiasm of traditional library staff is low, the efficiency is low, and there are a lot of complaints from readers. Some staff, even those who have worked in the library for many years, lack service concepts. It is generally believed that library work is ordinary and simple service work; older library staff lack service skills, such as computers, data processing, They are not familiar with professional service skills such as reference consultation, and are unwilling to strengthen their studies; although most libraries have rich collections of documents, most of the staff lack the skills to develop and utilize documents. Although the collections are rich, the utilization rate needs to be improved.

Using RFID technology, it is possible to digitally process documents and deeply process digital resources. Digital processing of documents, such as ordinary paper document processing, ancient rare book processing, microform document processing, audio and video processing, and special resource processing (such as maps, oracle bones, etc.), so that effective documents can be properly processed and promoted. In-depth processing of digital resources can be learned from digital resources