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With the continuous expansion of the scale of colleges and universities, the library, as an important basic cultural facility, faces the pressure of increasing collections of books, difficult management, and difficulty in place in time under manual operation, and the work of the library is becoming more and more onerous. How to effectively improve the efficiency of library management, simplify the process of library management, reduce the labor intensity of library administrators, meet the needs of efficient and rapid circulation of books, and promote the modernization and intelligence of library management has become an urgent research topic for library administrators. The emergence of the Internet of Things, especially the application of radio frequency identification technology, provides new research ideas for the solution of this subject.
2 RFID working principle
Radio Frequency Identification (RFID) is a non-contact automatic identification technology that uses radio frequency electromagnetic waves to couple through space to achieve non-contact information between the reader and mobile objects with RFID tags Pass, and use this information to track and identify the target. The RFID system generally consists of radio frequency tags, readers, and application systems.
The working principle of RFID is: the reader transmits a certain frequency radio frequency signal through the antenna, when the tag enters the antenna working area, it generates an induced current to obtain energy and is activated, and sends its own information through the tag’s built-in antenna; the reader’s antenna receives it The carrier signal sent from the tag is sent to the reader, and the reader demodulates and decodes the received signal, and then sends it to the computer system for corresponding processing (for example: issuing a command signal to control the actuator to take corresponding actions), thereby Complete applications such as object-related information query, statistics, and management.
3 Design of Intelligent Collection Management System
3.1 Feasibility analysis of intelligent management
First of all, the use of RFID can increase the speed of book borrowing and library collection. Traditional libraries generally use barcode technology. When borrowing or returning books, you need to open the title page of the book and find the barcode before you can operate it with a barcode reader. Because the bar code reader needs to be at a close distance and there is no object blocking the condition, the scanning light source can be read on the bar code, which leads to the reduction of the borrowing speed, which is one of the outstanding problems in the current library management. The non-contact, non-visual recognition, and multi-tag recognition characteristics of RFID have laid a technical foundation for realizing remote monitoring, fast and batch entry of books into the collection, and improving the efficiency of book borrowing and returning.
Secondly, the use of RFID can speed up the inventory of books in the library. The inventory of books in the library is an important part of the work of the library. Due to the traditional management mode, time, manpower, material resources and other hardware conditions, the library must be closed during inventory. Under the current situation of using bar code technology, the bar code reader must be close and there is no object blocking conditions. Interpreting bar codes, so it is necessary to scan and count the books on the shelf one by one, which is a large workload, time-consuming, labor-intensive, and expensive. After using RFID technology, you only need to scan the handheld reader on the bookshelf once to read all the data of the books with RFID tags. There is no need to close the library, the operation time is flexible, and you can easily find and distinguish the books on the bookshelf. Books, in the case of not affecting the normal work, complete the inventory and shelf work.
Finally, the use of RFID can improve book security and facilitate the intelligent management of collections. RFID electronic tags have readable and writable functions, and their electronic data can record various information as needed, such as book titles, shelf positions, collection locations, etc., but also have plasticity and can be attached to books, audio-visual products, and other information other than metal materials. On the carrier, readers are not easy to detect and have high security. The electronic tag and the reader exchange information according to the agreed communication protocol, using the spatial coupling of electromagnetic field and radio frequency signal modulation and demodulation technology, after the electronic tag receives the signal from the reader, the energy obtained by the induced current will be stored in The information in the chip is sent to the reader to realize intelligent management.
3.2 System design and management process
3.2.1 System design
In the process of managing collections of colleges and universities, often due to the large collection area and the wide variety of books and materials, the traditional manual collection processing will consume a lot of manpower and time, and errors are prone to occur. In order to realize the intelligentization of collection management, in the system design, multiple wireless access points should be installed on the ceiling, roof or related places of the library floor, so that the wireless signal can cover the library, so that the handheld or mobile RFID reader can Roaming throughout the coverage area. The design scheme of FRID-based intelligent collection management system is shown in Figure 1.
It can be seen that the system mainly includes RFID tags and RFID handheld or mobile readers, RFID self-service lending subsystem, RFID self-service book return subsystem, RFID book sorting subsystem, and collection information processing server. The collection information processing server is the core of the intelligent collection management system. It processes the radio frequency identification information transmitted wirelessly and feeds it back to the corresponding FRID subsystem to realize intelligent management and control.
3.2.2 Intelligent collection management process
Book sorting. Paste RFID electronic tags on books or other collection materials, and work with handheld or mobile RFID readers. When many books with RFID electronic tags pass through the scanning area of the reader, the reader will obtain a large amount of RFID tag information of different levels, and identify the information of various books, so as to realize the rapid sorting of books. At the same time, the relevant information is checked and processed according to needs, and the results are transmitted back to the database, and the corresponding distribution list is established to improve the timeliness of the shelves.
Efficient inventory. Move the handheld or mobile reader next to the bookshelf or bookshelf, read all the data of the books with electronic tags, find and distinguish the books on the bookshelf, and complete the inventory and shelf work without affecting the normal work to reduce errors. And return the records related to inventory statistics to the database, and establish relevant reports. At the same time, it can also transfer the loaned and returned collection data in the automated management of the library into the system to compare and query related data, and provide related statistical reports, such as the list of wrong shelves, statistics on the number of people who are not on shelves, List etc.
Self-service borrowing and returning of books. After readers have selected the books they want to borrow, they put their library cards and RFID electronic tags on the reader sensing area of the FRID lending subsystem, and the system can automatically identify and scan them. By connecting with the library’s automated borrowing system, the borrowing will be completed after confirmation, and the confirmation completed information will be displayed on the screen, and the reader’s borrowing list will be printed. Like the RFID lending subsystem system, readers can also return books through the self-service book return subsystem. These processes do not require manual intervention, and the system will generate log records for easy query.
4 Conclusion
The characteristics of non-contact, simultaneous reading of multiple targets, and no visual recognition of radio frequency identification RFID make it an important means of library intelligent management. This article focuses on the related issues in library collection management, analyzes the feasibility of using RFID for intelligent collection management, designs an RFID-based intelligent collection management system, and discusses the system’s intelligent principles in collection management Explained. With the continuous development and improvement of radio frequency identification RFID technology, its application scope will also continue to expand. How to improve the performance of collection management, expand service content, and truly realize intelligent and humanized library management under new technical conditions will be the next step. Research and resolve important issues.
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