Security alarm system is simple. Part I.
Security alarm system is simple. Part I You open the door, the microswitch closes the power circuit of the bell. Everything is ringing, crackling, you are frantically looking for the secret power switch of the siren
If you have strong nerves, you can endure 1-2 months, no more.
I suggest improving this alarm:
1. Instead of a microswitch, we use a point magnetic contact security alarm for metal doors — a hidden installation alarm SMK-6 (IO 102?6) or a surface-mounted alarm SMK-20 (IO 102?20), for non-metal doors — a hidden installation alarm SMK-5 (IO 102?5) or a surface-mounted alarm SMK-14 (IO 102?14).
2. Alarm loop (AL) — a wire connecting the alarm with the device, we lay a signal cable such as KSPV, MPV.
3. Replace the power on/off switch for the bell with a fire alarm control panel (FACP) for 1 alarm loop. These are the VERS PK-1, Astra-712/1/2, Quartz, and Grand Magistr-1A devices. The FACP provides: a) Arming/disarming the facility. As a rule, metal electronic TM keys (Touch memory) or contactless plastic cards, key fobs are used for this.
b) Registration of the fact of triggering of security detectors in the alarm loop.
c) Transmission of the alarm signal to the light signaling device (siren, lamp). Optimally, the alarm signal is transmitted to the control panel of the off-site security department, police, or private security company.
d) Uninterruptible power supply of the security system, including in the absence of a 220-volt power grid, for which it is necessary to install a battery (AKB) in the device.
The algorithm of your actions is simple: leave the apartment, lock the door with a key (while you do not have an electric lock yet), apply the electronic key fob to the reader — and your apartment is under the surveillance of the security system. You can disarm the apartment only with the help of an electronic key fob programmed in the control panel.
So, to create a security system for the entrance door of an apartment or garage, you need:
1. Security and fire alarm control and monitoring device for 1 alarm loop — 1 set.
VERS PK 1TM
Options:
— «VERS PK 1TM» — «Astra-712/1» — «Quartz» — «Grand Magistr-1A».
2. Sealed maintenance-free lead-acid battery — 1 pc.
Astra-712/1
— 1.2 A/h battery for «VERS PK-1TM», «Quartz», «Grand Magistr-1A» devices — 7 A/h battery for «Astra-712/1» device
3. Point magnetic contact detector by the number of doors:
— for metal doors SMK-6, SMK-20, SMK-26.
— for non-metal doors SMK-1, SMK-5, SMK-14, MPS-20
Electronic TM key (identifier) »DS-1990A»
4. Contactor for reading the code of the electronic TM key (identifier) - 1 pc.
Options:
— mortise contactor — «TM reader»
— surface-mounted — «TM-N reader».
5. Electronic TM key (identifier) »DS-1990A» up to 24 pieces depending on the type of control panel.
6. 12-volt light signaling device «SSU-Vest», «SSU-1» — 1 pc.
12-volt light signaling device «SSU-Vest»
7. Electric cable and wire:
— MPV (KSPV)-4×0.5 for laying the alarm loop — PVS-3×0.75 power for connecting to the 220-volt network and the grounding office.
In the next article, we will consider the types of multi-loop control panels, varieties of security detectors and simulate a security system for an apartment with N rooms.