For the first time, the alarm is built into the castle, which warns the host about the burglary started before the lock is open than and differs from classical alarms that are triggered when the door is opened when the attackers have already penetrated the room.
Protection against two major threats:
1. Opening with hides
2. Drilling of the Suwald Rack
Protection from opening with hides is based on the fact that when opening the original key, the Suwalds rise quickly and once in one turn of a key of 180 degrees
A cracker repeatedly raises each SUVALDA separately that the Suwald Rack passed through all the cuts in Suwalds
We will track this is not a characteristic movement of Suwald.
For this we need two sensors
The first on the trash for tracking is that the lock is closed
The second is the lift detector Suwald, here's here
And connect them consistently
The scheme is very simple
It turned out such a small assembly
The original key closes both switches simultaneously for a moment, and the transistor does not have time to open, the cracker with hides after the third lift Suwald opens the transistor. The relay is aligned and includes any load.
Sirena or as I - closes the button on the phone and the phone calls the configured number.
The drilling sensor is also very simple.
The attacker drilling closes the foil on the body, the relay works and self-locking.
Includes the load you need.
And here is all alarm assembly
Alarm does not consume a current in standby mode, for this alkaline batteries will be enough for several years. And this alarm can be built directly at the door.
Thank you all for your attention.
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