With the continuous progress of the social and cultural heritage, people's demand for knowledge in life is gradually increasing. As the base of cultural heritage, the library is a base of cultural heritage, and efficient book management can well realize the popularization of knowledge. So how to further strengthen library management has become a national focus.

1 Technical characteristics of 2D barcode

The 2D barcode was officially announced for the first time in 1991. With its distinctive technical characteristics, it has been applied to various fields including library management. All kinds of information of the book are stored in the 2D barcode, and the 2D barcode is scanned by laser equipment to realize the sorting and input of information data, and the information data is fed back to the computer, and finally the information is transmitted to the code reading equipment by infrared rays to complete the identification of books Information and other operations. At present, the technology of the two-digit barcode is very mature, and its technical characteristics are quite obvious. 

First, the amount of stored information is large, and the bar ratio can be adjusted as needed. The larger the bar ratio, the larger the stored information capacity, and the information to be stored can be encoded and entered into the 2D barcode; second, Strong security, the barcode cannot be read directly by humans, and only the corresponding scanning equipment can be used to read the specific information. In addition, the 2D barcode can use computer means to cover encryption methods such as passwords, which effectively guarantees information security; third, reliable Strong, the use of 2D barcodes in book management effectively solves the phenomenon of pirated books, which is equivalent to issuing an ID card to genuine books. 

In this way, the quality of library books is guaranteed; fourth, strong toughness, Different from the traditional ordinary barcode, the 2D barcode will not be unable to read the information due to pollution or wear. Even if there is pollution, the 2D barcode can display the information through the computer, which effectively protects the information data and provides information storage and Identification provides a higher level of security.

2 The advantages of 2D barcode to realize book management

2.1 Strengthen the anti-counterfeiting ability of the library card

Printing a 2D barcode on the library card can effectively improve its anti-counterfeiting ability. Different from traditional anti-counterfeiting marks, 2D barcodes will not cause the anti-counterfeiting ability of book collection due to wear and tear. Based on its strong toughness and strong security, 2D barcodes can realize digitized information such as text, Photos, fingerprints, sounds, etc. are encoded, and a layer of password is covered at the same time of encoding, which effectively prevents counterfeiting barcodes and manufacturing pirated books, which brings convenience to book management and improves library service efficiency.

2.2 Speed up information collection

The 2D barcode can store information data of different sizes in proportion, and it has the function of carrying the database. In the application process, it is not necessary to obtain the verification of the background database, and the information in the barcode can be directly input into the computer by scanning. In the process, cumbersome steps are omitted, and the rate of information collection is greatly improved. 

The 2D barcode is highly resistant to damage and avoids the phenomenon of information loss due to wear and tear. In addition, the 2D barcode is easy to print, and inkjet printing, laser printing and other technologies can be used to quickly realize the production of anti-counterfeiting marks, and enter the relevant data information of books into the computer to facilitate subsequent inquiries and anti-counterfeiting verification. At present, many libraries choose to merge two or more libraries in order to expand their own scale and rationally integrate book resources. And borrowing work brought trouble. 

The appearance of the 2D barcode has solved this problem easily. The 2D barcode records various information of the borrower, including name, gender, unit, photo, palm print, etc., which can be quickly identified and confirmed by computer scanning, speeding up the process of borrowing. The speed of information collection and extraction realizes the perfect link of the information library, which not only saves the user's time, handles the borrowing work safely and accurately, but also improves the information library's ability to obtain information, and the staff does not need to manually re-enter new information again , directly upload the scanned information to the background database.

2.3 Improve the circulation rate of books

The circulation speed of books and periodicals is not as convenient and fast as network information, and book resources are lost in the process of circulation from time to time. Therefore, the circulation rate of books and periodicals is a direct reflection of the level of library management, and it is also the focus of library service work. 2D barcode technology is an important means to realize the digitization of library information. It can effectively help the library to realize the automation of book circulation. 

Through the collection and processing of book information, it improves the circulation efficiency of books and greatly changes the circulation of books. In addition to the time-consuming and laborious manual operations on site, the application of 2D barcodes is of great significance in the practical application of book management. The specific process can be formulated according to the following steps: First, during the book borrowing process, the specific flow information of the book is recorded in the 2D barcode, and the title, author, serial number, publication date, introduction and catalog of the book are also included. Into the 2D barcode, so that after the coding is completed, the detailed information of the book can be quickly grasped by scanning the 2D barcode, and the library management ability has been strengthened; 

Check whether the book is returned on time or is still in the hands of the borrower, and record it in time for subsequent management work; third, by entering the basic information of the book in the 2D barcode at the beginning, when the book is returned, the administrator scans it through the computer. information data, verify the title, number, etc. of the books, and quickly complete the borrowing and returning work; fourth, the returned books can be quickly sorted and classified into the corresponding book area, so as to facilitate future borrowing work. 

The use of 2D barcodes to organize and store book information creates free space for the circulation of books and periodicals, strengthens the book management system, facilitates managers to better understand the whereabouts of books, and greatly improves the efficiency of book circulation.