Is there a national standard or industry standard for the detection of anti-theft soft labels?

The following contents are provided by Pernod Electronic Technology Department.

There is no national standard; But there are standards in the industry;

At present, the anti-theft system is mainly divided into three systems:

1, RF system

2. Acoustomagnetic system

3. Electromagnetic wave system (mostly used in libraries and bookstores)

The soft labels of the three systems are different; I'm here to point out the effective detection distance of three kinds of tags at work:

1, RF soft tag (80cm~ 1 10cm between channels, but some ultra-wide systems can be detected 140cm).

2. Acousto-magnetic soft scale (the channel is 130~ 150cm, and some equipment can reach 180cm).

3. Electromagnetic magnetic stripe (75~80cm between channels)

How to evaluate the induction distance depends not only on the equipment, but also on the coil quality, size and site environment of the tag.