With the development of technology, various anti-theft methods for goods or books in shopping malls, supermarkets, and libraries continue to emerge, which greatly protects people's property security. The main anti-theft methods on the market are as follows:
RF anti-theft system：fix radio frequency tags on the items to be protected, and install RF antennas at the entrances and exits; using radio frequency identification technology, the system will alarm when the items are brought into the identification range of RF antennas.
AM anti-theft system：it is a resonance phenomenon generated by the tuning fork principle, which realizes almost zero false alarm operation. When the frequency of the transmitted signal (alternating magnetic field) is consistent with the oscillating frequency of the AM tag, the AM tag similar to a tuning fork will cause resonance and generate a resonance signal (alternating magnetic field); ) After the resonance signal (every 1/50 second), the receiving system will give an alarm.EM anti-theft system：After the customer selects the required product, the magnetism on the product is removed by the degaussing device, and the anti-theft system does not alarm. The anti-theft system will alarm if the customer is carrying non-degaussed goods, or if they have goods that are not processed normally.
The RFID system consists of two parts：software control system and hardware identification system. The software control system is mainly used to process and analyze the information collected by the hardware identification system, and to make an alarm arrangement. The hardware identification system includes three main components: reader, antenna, and electronic tag.
1.Problems solved by EAS + RFID hybrid technology:
1) Advantages and disadvantages of EAS system:
Advantages: It can work well in the field of anti-theft for the protected goods. High alarm rate and good stability;
Disadvantages: It is impossible to identify what the goods are for the alarm product.
2) Advantages and disadvantages of RFID system:
Advantages: It can reach the alarm product name identification when the protected product is not shielded, and has prominent advantages in production, logistics, warehousing, inventory and identification of stores;
Disadvantages: It is easy to be shielded by metal, human body, and superimposed interference between tags, which causes the alarm to be unrecognizable;
For the above reasons, SSLT has developed a series of EAS + RFID products based on years of experience in the EAS anti-theft and RFID industries. It has been widely used in the fields of libraries, smart retail, and asset protection and a very good anti-theft and identification effect.
At present, the company has a variety of hybrid products such as EM + RFID, AM + RFID, RF + RFID, barcode + RFID, barcode + AM, image recognition + AM, etc.
1) EAS series products
2) RFID series products