图书馆标签的芯片数据存储空间store the information of each book, and these data can be read and written within a range of 0.05 meters to 15 meters without the need of direct eyesight or contact. Front-end product and system software of library management system have good learnability, operability, and convenience to enable librarians with the primary operating level of the computer to master the operating essentials of the system through simple learning and achieve the operational level of completing the duty task. Radio frequency (RFID) tags are stable and reliable. It can be used for more than 10 years. Temperature or light will not affect the usage of library tag. Even if the label is dirty and the surface is worn, neither will not affect.

当标签库第一次began using RFID, the only viable tag for item-level tracking was an HF tag. This is because the read range of UHF is longer and more unwieldy than HF library tags, and because early UHF library tags encountered problems around metal and water. However, UHF technology has evolved quite a bit, and many RFID experts assert it is equally effective for item-level tracking. Some argue that it is a better choice than HF because UHF library tags are more universal.

However, virtually all US library tag RFID systems in production are based on HF library tags. There may soon be one exception. At the end of this year, Grand Rapids Public Library expects to go live with its UHF system. Grand Rapids has developed an open-source solution for its UHF RFID system for communicating with its ILS (which is Evergreen, also an open-source product).

UHF technology has evolved very fast in the last several years and is now widely adopted for item-level tracking. Between 2003 and now, as other industries were focusing on UHF tags and developing standards and new applications across numerous industries, library tag continued to focus their standards efforts only on HF library tags.

Given the pervasiveness of UHF tags for item-level tracking in so many other industries, it isn’t entirely clear that the decision to standardize on HF tags in libraries was the right choice. How to explore UHF tags for libraries without disrupting the progress made toward standardization and interoperability remains a conundrum for everyone involved in standards development. It is a question that should be resolved as soon as possible so that libraries can move forward in unison and not at cross-purposes.