Build an alarm system yourself
Unfortunately, it has to be said that the protection of property is playing an increasingly important role in our society. With an alarm system, you can effectively counter even sophisticated burglars. This article will show you how you can build a useful device for yourself.
What you need:
- motion detector
- acoustic signal
- Button
Where an alarm system is recommended
- In general, an entire area can be equipped with alarm systems, it is always a question of the benefit compared to the cost.
- These instructions are intended to be limited to particularly endangered objects that cannot be viewed.
- Alarm systems are becoming increasingly important in the border regions of the external borders with Poland and the Czech Republic.
Design and build yourself
- Two methods can be considered for the construction of an alarm system with commercially available means: The optical control by a motion detector and secondly by one or more mechanical ones Counter. A coupling of the two systems is also conceivable and effective. Signaling via radio would still be technically possible, but this is currently still complicated for the layman to build himself.
- Assume what actions a burglar will likely have to start in order to get into the object of desire. You can also force the thief to take certain routes by blocking others from the start. That can be B. be stable grids if the appearance of a building allows it.
Motion detector with infrared notices
Infrared motion detectors can usually be easily installed by yourself and ...
- Light has always been badly tolerated by crooks. So don't just make noise when something seems to be going on, but give priority to good light that cannot easily be extinguished.
How to build the alarm system yourself
- Install a sufficiently loud, low-voltage acoustic device of any kind in the house. The appropriate voltage is produced with a small transformer or a battery. The trigger must be attached to the object to be protected. He should sit in such a way that he is either not visible or cannot be reached without aids.
- A good solution for building it yourself is a switch that closes the contact when the button is open. Such a switch is easy to retrofit anywhere, invisible from the outside and always active. Install as many switches as necessary and switch all contacts to the noise source or the noise via a relay. the light or both. The whole thing works like the switching of the corridor lighting in the apartment building.
- If you prefer to control the alarm system using a motion detector, you must ensure that it cannot be switched off. It must also not be possible to cut the cable. Expect the use of brute force to silence an alarm device.
- The motion detector can also work as a contact to the relay. So you only have to lay an extra cable for low voltage when working with low voltage. In any case, you should draw up a circuit diagram, and someone will be able to help you.
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