Those who know about
Electronic Locks may have heard that at an exhibition in 2018, there was a "small black box" that swept a large number of electronic lock manufacturers, which actually used the high-intensity electromagnetic pulse interference of Tesla coils. Electronic lock, make the electronic lock dead or reset, so as to achieve the effect of unlocking. After this incident, many people have doubts about the safety of electronic locks, so to this day, can the "small black box" still open electronic locks at will?
In fact, as long as you don't buy some unlicensed, OEM or non-branded electronic locks for petty cheap, you don't have to worry about similar situations like small black boxes. First of all, we need to understand what a small black box is. The essence of the small black box is a Tesla coil, a classic booster that mainly uses a transformer to increase the voltage and then discharge it through the coil. When the coil is close to the electronic lock, the high voltage released by the coil will interfere with the signal of the electronic lock and make the electronic lock enter the reset state. At that time, many electronic locks were opened by default in the reset state, so this small black box can easily open the electronic lock.
Secondly, this incident also caused an uproar at the time. However, after this incident, major manufacturers have strengthened their vigilance against the small black box. After the launch of the electronic lock, anti-strong electricity and strong magnetic detection have been carried out, and the safety is very reliable. In addition, electronic locks bring a strong sense of security to everyone, but even very strong electronic locks can be sawed with a saw and opened with better technology. The main purpose of electronic locks is to make entry and exit more convenient and comfortable, and you should be careful to close doors and windows when you go out.
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