Electronic anti-theft system refers to the general term for RF, AM, and EM anti-theft systems, which are commonly used in places such as libraries and supermarkets. Their principles and usage methods are different, but they both use electromagnetic induction principle for anti-theft, used to detect products with anti-theft tags, protect the integrity and security of electronic anti-theft systems.
Traditional anti-theft mode
RF anti-theft system: RF anti-theft system, also known as radio frequency anti-theft system, is an electromagnetic wave anti-theft system that uses radio frequency signals for detection. The working frequency of RF anti-theft system is generally around 8.2MHz. The advantages of RF anti-theft system are long detection distance and good anti-theft effect, but its disadvantage is that it is easily shielded by metal. AM anti-theft system: AM anti-theft system, also known as magnetic anti-theft system, is an electronic anti-theft system that uses the principle of magnetic field induction to prevent theft. The working frequency of AM anti-theft system is generally around 58kHz. The advantage of AM anti-theft system is its good metal shielding performance, but its disadvantage is that the detection distance is relatively short.
EM anti-theft system: EM anti-theft system, also known as electronic anti-theft system, is an electronic anti-theft system that uses electromagnetic induction principle to prevent theft. The operating frequency of EM anti-theft system is generally around 1.95MHz. The advantage of EM anti-theft system is that it has good anti-theft effect on both metal and non-metal items, but its disadvantage is that the detection distance is relatively short. Overall, RF anti-theft systems are suitable for large shopping malls, supermarkets, and other places to prevent theft of bulk commodities; The AM anti-theft system is suitable for small shops, bookstores, and other places to prevent theft of small goods; The EM anti-theft system is suitable for anti-theft protection of high-end goods such as cultural relics, artworks, jewelry, etc.
The mainstream anti-theft mode of smart library
RFID (Radio Frequency Identification) anti-theft system is a technology that uses radio frequency technology to prevent theft of books. Its working principle is to install
RFID tags on books. When a book leaves the library without going through the borrowing and returning procedures, the
RFID reader will automatically detect and issue an alarm to remind the administrator to take action.
RFID anti-theft system
The main advantages include:
efficient:
The
RFID anti-theft system can quickly detect books that have not gone through the borrowing and returning procedures, greatly improving the management efficiency of the library.
Automation:
The
RFID anti-theft system can achieve automated book borrowing and returning operations, greatly reducing the workload of administrators.
Good anti-theft effect:
RFID anti-theft system can effectively prevent book loss and theft, saving libraries a lot of money and labor costs.
