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Do the supermarket anti-theft devices have a blind spot? [Bohang China]

Views:3     Author:Allen     Publish Time: 2019-08-22      Origin:Site

Do the supermarket anti-theft devices have a blind spot? [Bohang China]


The installation distance of the supermarket anti-theft devices has a fixed range. When installing the anti-theft device, the door distance is an important technical indicator for detecting the antenna. Generally speaking, 1.2-1.4 meters is the most common installation door distance of the supermarket. Within the detection range of this distance, the state of machine operation is ideal. Of course, specific to each store to install how wide, but also depends on the analog technology or digital processing of the motherboard, the surrounding electromagnetic field environment is ideal, the store's entrance and exit location aesthetic requirements, then the supermarket anti-theft devices have a blind spot?


Bohang supermarket anti-theft devices

Any supermarket anti-theft devices have an alarm dead zone within its detection range, and when the same tag signal enters the detection range in different directions, the alarm blind zone of the antenna is different. The smaller the range of the blind zone, the better the system working state. . Of course, for thieves, no matter how big the blind areas are, they dare not take the chance to try to "sound".


 Bohang supermarket anti-theft devices


In general, there are no clear numbers to determine, and field surveys are the best way to confirm gate distance. Under the premise of the same electromagnetic field environment and the same use effect, the difference of the gate distances of different detection antennas can be used as a parameter to judge the advantages and disadvantages. Pay attention to observe the environment during installation, carefully check the dry and soft, and test the optimal installation door distance, so that the blind zone of the anti-theft device does not exist, and the supermarket anti-theft can be better.

Bohang supermarket anti-theft devices

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