Cosmetics-shop security Makeup Markets Anti-thief System Project

Makeup Markets Anti-thief System Project



A. Introduction of anti-thief system

The technical principles of the EM anti-thief system:



1. EM anti-thief system

The basic principle is to detect if the objects have the EM strips by the transformations of the alternating magnetic field to prevent thefts. The electromagnetic identify technology is chief technology.

The electromagnetic technique detects by the alternating magnetic field produced by the low frequency from 10Hz to the 20 KHz of the detecting antennae (transmitting antenna & receiving antenna). It detects the EM strips of the objects. The strips are PoMo alloy soft strips with cragged hysteresis loop . The polarities of the strips will be magnetized periodically over and over again when they were inside the alternating magnetic field of the transmitting antenna. The magnetic flux density B of the strips changes jumpily near the place where the external magnetic intensity H spans 0 (non-linear characteristic), then the harmonic wave would be produced whose frequency is the baseband of the transmitting antenna, and the receiving antenna will receive and process the wave and produce the alarm signal.

The system has many obvious advantages. First of all, it is the only one system to detect the objects that have metals or foils inside, the market could largely expand the protecting scope with the system. Secondly, the material cost ( strips ) is lower than RF soft label, the system will save a lot of money in a long time for makeup markets.

2. Anti-thief principles of RF system:

The working principles of RF system: the transmitting and receiving antennae uninterruptedly transmit and receive electromagnetic waves between 7.4~8.8 MHz, the interferences with 8.2 MHz center frequency caused by labels will cause the alarm.

To help you understand the strongpoints and defects of our system clearly and help you make a wise decision, we will compare EM system with RF system by a form:

Comparing form for EM system and RF system





NO.
Comparing items
EM System
RF System

1
System Principles
Electromagnetic Induction
RF Resonance

2
Applying Occasions
All kinds of retail stores.
Emporiums and markets.

3
Price
high
high

4
Material Unit Price (RMB)
Strip 0.09
Soft label 0.15

5
Hiding Trait
Good (they can be hided inside the packaging or stuck on the makeup.)
Bad ()

( be stuck inside front cover or on the surface of objects. )



6
Material Damage
Difficult. (Strips on the makeup surface are easy to be found and ripped off. We recommend you use fake barcode strips . They are similar with barcode and it's hard to distinguish them. But ripping behaviors are easy to be found and will cost much time to rip them off.)
Easy. (They are easy to be found and ripped off. The thieves just need to pierce them by some shape things. It won't cost much time and the stealing is not very obvious, so it's hard to find.)





7
Anti-metal Capacity
Very good.
Very bad.

(Their actual use is very bad because they are easy to be shielded by metals such as foil or tin.)

8
Matching extent with the style of the shops
Moderate & High degree
Moderate & High degree

9
Technical capability level
High
High

10
Effective setting distance
About 80cm
About 90~180cm

11
Overall economic efficiency
Very good
Good

Recommending degree
????
???






The working principle flow of the library alarm system-

1. Set the EM strips inside the goods.

2. Set the detectors at the exit channels.

3. Degauss the goods by the special deactivator after the normal checking.

4. The goods without normal checking (that have the strips inside) will make the door detectors alarm and stop the customers.



The function of the EM alarm system

1. Preventing thefts. The system changed the old ways that the workers have to gaze at the customers or the workers have to take good care of the books in case that someone would steal them. The system makes each of the books protects themselves and solves the stealing problem totally. That would reduce the loss of bookstores.

2. Simplify management. The system could effectively prevent inner thieves, ease contradictions between managers and staff, exclude the staff's psychological barriers and let them work absorbedly and increase working efficiency. Also the system could reduce employees and optimize employees at the original basics to save operating costs and improve service level.

3. Alarm. The system could stop the customers stealing with a tough and polite way. It could avoid the disputes between persons and it could protect the profit of the bookstores, meanwhile respecting the human rights. The system could warn and stop the thieves psychologically.

4. Improve the borrowing atmosphere. Many people hate the old gazing way. The system could create a better atmosphere that customers could select books freely, and it could improve the relationship between the merchants and the customers which makes the circumstance more comfortable and help the merchants to attract more customers


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