The subtleties of installing a security alarm in the house with your own hands. Features and installation of a GSM security alarm in the house with your own hands The simplest door alarm

Russians have always been famous for their ability to do all the housework on their own, without involving specialists. Most men are decently versed in plumbing, electrical, installation work and the structure of a car. Therefore, for many, a DIY security alarm is not a myth, but a reality. Of course, this will require certain skills, knowledge of electrical engineering and the availability of the necessary tools.

Security alarm for apartment

Self installation options In your own apartment there are only two effective security alarms. The first option involves purchasing a ready-made kit, which contains everything you need for a small home alarm system. And if you purchase a wireless system, then you don’t need to do anything. Enough to place sensors in the right places and set up the device according to the instructions. This option has its weaknesses. First of all, the price, which cannot be called too low, then, in some way, you may not be satisfied with the proposed device and security sensors. The proposed equipment may not be sufficient to organize a security alarm in a particular apartment.

Therefore, many prefer the second option, when all components are purchased independently and installation work is also carried out without the help of specialists.

Security alarm equipment

Every security alarm, no matter is it simple or complex, must effectively protect all areas of the apartment and give a signal in case of any violation of the protected area. The main elements of the security system are sensors, each of which reacts to a specific action or event. The number of sensors is limited according to their purpose.

There are only a few varieties:

• Magnetic sensors
• Motion detectors
• Sound sensors
• Vibration sensors

A magnet-reed switch pair is installed on doors and window sashes. When everything is closed, the magnetic field keeps the contact plates in a closed state.

As soon as you open the door or window a little, the magnet will move away from the contact pair and it will open. This is the most inexpensive and fairly reliable sensor included in all security alarm systems.

Sensors

A reliable security alarm system also uses motion detectors, which are triggered as soon as an object is within the detection zone of the sensor. These devices come in different types, but for private security alarm systems, passive infrared motion detectors are used. They are cheaper than radio wave microwave sensors and more reliable than ultrasonic ones. Each sensor has a clearly defined detection zone.

Most infrared motion sensors have a zone length of 10-12 meters and a capture angle of 90 0 .

Typically, such devices are installed according to the principle of one room, one sensor, but there are exceptions. If a room has several windows located on one wall, then an infrared “curtain” detector is installed, which forms a narrow vertical but extended horizontal zone that blocks all windows along the wall.

Sound (acoustic) sensors respond to the sound of breaking glass. They form an additional security line. As a result of installing three types of sensors, the room will be completely blocked and entry into it through the window and door is almost impossible. Vibration sensors respond to attempts to undermine or destroy (break) a wall and are used extremely rarely in household security alarms.

Sirens

In addition to sensors, any security alarm system must have a warning device. Most often, a low-current siren is used, combined in one housing with an LED indicator. Such a device, in case of violation, emits a sharp signal with a sound pressure from 90 to 115 dB, which will simply scare away the intruder. In addition, the sound of the siren along with the red flashes of the LED indicator will attract the attention of neighbors.

Power alarm

For reliable and uninterrupted operation of the security alarm system, care should be taken to ensure proper power supply. Power outages require the use of power supplies with built-in batteries in security systems. Such devices allow the alarm to function normally for several hours.

To perform installation work you will need a wire, cable duct and fasteners. The security alarm is wired using KSPV 4 X 0.5 wire. Two of the four wires are used to supply power to the sensors, and two more form a signal loop. To connect the network, use a ShVVP wire or similar. Installation of sensors and laying of the cable channel is carried out using dowels and self-tapping screws.

PKP - the heart of the security alarm system

The basis of a security alarm system is control panel - PKP. For a simple security system, it is enough to use a device with one or two loops. Such a device is inexpensive, but has well-developed functionality and is perfect for a small apartment alarm system.

Common devices with one loop:

• Quartz
• Astra 712/1
• VERS-PK 1

The cost of the devices does not exceed 1900 rubles. The case of each device has a place for installing a battery. Arming and disarming is carried out using Touch Memory electronic keys, which are included in the delivery package.

Video on how to make an alarm from your phone:

Self-installation of security alarms

Before purchasing everything you need for a security alarm, it is recommended that you complete the entire installation plan on paper. This will help avoid errors when placing sensors and will help determine the exact number of elements required.

To make a simple security alarm yourself, you also need to have the following tool:

• Hammer
• Hammer
• Pliers
• Wire cutters
• Screwdriver Set
• Tester

Choosing a place

First you need to select a place to install the main unit (PKN). Usually it is installed on the hallway wall, next to the front door. It is advisable that an electrical panel or distribution box be located nearby. The device must be in standby mode at all times, so the power switch is usually not installed. Then security sensors are installed, depending on the number of rooms, and a loop is laid. If the apartment is located above the second floor, it is not practical to use glass break sensors. All sensors are included in one loop.

It is easy to check the functionality of magnetic contact sensors using a tester before connecting them to the line. When the door is closed, the circuit is closed, and by opening it 1-2 cm you can see how the contacts open.

Installing sensors

Infrared motion detectors are installed at a height of 210-220 cm in the corner formed by the walls. The specific installation location is selected in accordance with the size and configuration of the room. Such sensors are equipped with a rotating bracket, which makes it easier to select the optimal horizontal and vertical angle.

If the room is small, then the sensor must be oriented so that the window, and if possible, the door, falls into the response zone, which is indicated in the passport. There is a red LED on the body of the motion sensor, the glow of which shows what state the sensor is in. In standby mode, the diode lights up constantly, and when the protected zone is violated, it flashes.

We mount

Installation of a security alarm is carried out using a four-wire KSPV wire, as the design of the apartment or house allows this. It can be laid in a cable channel, under the baseboard and door jambs. After installation has been completed and functionality has been checked, you can choose a location to install the alarm device. A triggered siren will force the offender to abandon his intentions, and will also inform neighbors that something has happened in the apartment or house. The security alarm is controlled using electronic keys, the reader of which is installed next to the device.

Currently, ready-made security alarm kits with . Such innovative devices, if a protected space is violated, can not only notify the owners of unauthorized entry, but also call a quick response service. Of course, the cost of such devices is slightly higher than that of a conventional alarm system, but this is justified by their capabilities.

Video with a non-standard solution for creating an alarm system:

Burglar alarm simulators

A home security alarm made by yourself does not necessarily have to include expensive control devices and sensors. One of the most important things to do at home would be to install a standard motion sensor, which is used to turn on the lighting.

The cost of sensors starts from 300 rubles.

Sensors of this type have a large detection area and can switch a load of up to 2.0 kW, which allows you to turn on a powerful siren and lighting if the protected zone is violated. Such security systems are often installed in garages. This is convenient because, unlike complex devices that can be operated under certain conditions, outdoor motion sensors operate over a wide temperature range.

On the security systems market you can already buy ready-made imitators (dummies) security alarms, which can have autonomous power supply. The simplest ones are a regular red LED that operates in pulse mode. In conclusion, we can say that the range of security devices is currently very large, and everyone can choose the best option for themselves.

This article provides diagrams of the simplest electronic alarms, which can be made by anyone who is at least minimally familiar with electronics or simply knows how to hold a soldering iron in their hand. Such alarms are useful in many cases. They can be placed on windows if there is a small child in the house who can open them. There is a guarded parking lot on the doors of the apartment or garage. And when triggered, the watchman will call the police. You can install such an alarm in your apartment if you are friends with your neighbors. Even if you are going on a hike, it is not a sin to spread a security line around the camp at night in case wild animals or strangers appear.

First scheme Electronic signaling is simple to the extreme, it couldn’t be simpler. This is just one transistor, resistor and executive relay. If an audible alarm is expected, then instead of a relay, an audible siren or howler is turned on.

Principle of operation: The security loop is a thin wire, or a closed contact. When the wire is intact (or the contact is closed), the base of the transistor is grounded and the transistor is turned off. No current flows between the collector and emitter.

If the security wire is broken or the contact is opened, the base will be connected to the power source through resistor R1, the transistor will open and the relay (or siren) will operate. You can turn it off only by turning off the power or restoring the security loop.
Such an alarm can be used to protect your belongings, for example. A reed switch is used as a security contact; the alarm is hidden in the side pocket of a bag or backpack, and a magnet is placed nearby. If the magnet is removed from the alarm itself (move the thing), the siren will squeal loudly.

Second scheme with more advanced user features

As in the first case, a security loop, a normally closed (in security mode) contact or a reed switch closed by a magnetic field serves as a sensor. If the loop is broken, an alarm is triggered and continues to operate until the power is turned off. Restoring the loop does not turn off the alarm; it will still continue to work for some time. The alarm has a temporary blocking button, which is necessary for the owner to leave the protected area. The alarm also has a response delay, which is necessary for the owner to turn it off when he enters the protected area.

Let's analyze the operation of the circuit. Before arming the alarm, you must turn off (open) switch S1. It must be installed in a secret place near the entrance. You can use, for example, a hidden reed switch, which is closed or opened by moving an object with a magnet built into it, etc. This switch blocks the operation of the system and it stops responding to a broken loop. When leaving, switch S1 opens and capacitor C2 begins to charge through resistor R2. Until the capacitor is charged to a certain value, the system is “blind”. And you have time to leave the facility by restoring the security loop or closing the contacts. By selecting the values ​​of resistor R2 and capacitor C2, achieve an acceptable output delay for yourself.

If the security loop is broken, then capacitor C1 will begin to charge through resistor R1. This pair creates a slight delay in the alarm, and the owner has time to neutralize it by turning on switch S1. It is necessary to select the values ​​of the resistor and capacitor for a comfortable response delay time.
If the loop is broken by an intruder who does not know how to turn off the alarm, then some time after the loop is broken, the alarm will go off (at both inputs of element D1.1 there will be a logical “1”, respectively, at the output “0”. Having passed through the inverter D1 .2 it will again become “1" and open transistor VT1. The transistor will discharge capacitor C3 and, through the inverter, open transistor VT2, which will force the executive relay to operate or turn on the siren.

Even if the attacker quickly restores the loop, the siren will continue to work, since capacitor C3 will be charged for sufficient time through resistor R3. It is the ratings of this pair that determine the operating time of the alarm after the loop is restored. If the loop is not restored, the alarm will work continuously.
Microcircuit - K561LA7, transistors - any n-p-n (KT315, KT815, etc.) Power source - any with a voltage of +5 - +15 Volts. The executive relay or siren can be connected to a more powerful power source than the circuit itself. In standby mode, the circuit consumes virtually no current (at the level of battery self-discharge).

The use of autonomous security alarms is common. There are many modifications of the wireless system, the configuration of which depends on the conditions of use, structural features of the area, and the requirements of the owner. The price range is different, the cost-quality ratio is acceptable. At the same time, homemade GSM alarm system based on improvised devices is also of interest, especially among those who are familiar with the basics of radio electronics.

GSM alarm system: buy or make it yourself?

The answer to the question depends on the requirements and requests made to the security installation. The variety of functionality and capabilities of wireless systems is wide. Additional equipment is provided by the design feature of this equipment. If desired, it is possible to organize an autonomous scheme that is optimally suited to a given object. First of all, this concerns the protection of private houses, country houses, city apartments, car garages, etc.

But there are cases when extensive functionality is not needed; it only complicates the use of the device. Here it is recommended to purchase simpler systems, with the necessary set of capabilities. It is not recommended to use the cheapest ones due to their low efficiency and low reliability.

If you have the desire, as well as knowledge from the field of radio electronics and radio engineering, it is possible to organize a GSM alarm system yourself. Equipment - the most basic tools, simple devices (for example, an old mobile phone, Arduino platform, GSM module, battery, etc.).

It is better to undertake the independent organization of a security alarm system by a specialist who will carry out high-quality assembly, with knowledge of many of the nuances. This model is suitable for installation inside a garage, car, or small warehouse. It is recommended to entrust the protection of serious objects (residential buildings, apartments, office premises, shops) to industrial models with remote control and an extensive circuit of connected sensors of various directions.

Homemade GSM alarm system from a mobile phone

Often, independent alarm systems are built on the basis of a mobile phone. Required set of tools and devices:

• Push-button telephone with speed dialing function (required).
• If you want to listen, use headphones with a microphone from a mobile device.
• Soldering iron, related materials.
• Wiring.
• Reed switch, magnet.
• Battery up to 12V (with external power supply to the mobile).

Sequencing:

1. Open the telephone menu, select “one-button” call settings, assign a mobile number (or group of numbers) to which a DTMF alarm signal will be received, behind a specific button (buttons).
2. Dismantle the phone down to the circuit board with the film glued on it.
3. Using a sharp knife, make cuts under the number that was previously determined in the menu settings for an emergency call. Lift the film, under it there is a metal membrane, which will subsequently close the contacts (grounding, “patch”).
4. Solder the wires to the ground, “patch”. To avoid false alarms, it is recommended to use the wires of one loop.
5. Seal the membrane to prevent shorting.
6. Install a reed switch on the device, a magnet on the door. To prevent the circuit from quickly opening when the door is closed, it is necessary to provide a mechanism that moves the magnet to the side.

Options for connecting the resulting device to the alarm system:

• Using a relay (normally open contacts).
• Using a biopolar transistor.
• Optocoupler. The most optimal option, creating a galvanic isolated circuit.

This video describes the circuit in more detail.

How to do it? Option on the Arduino platform

This scheme includes:

• Arduino platform
• GSM modem (SIM900A, SIM800L)
• Power supply, battery.

The system works simply. When a connected sensor (motion, infrared, etc.) detects intrusion indicators, it sends a signal to the system, putting it in standby mode. An alarm notification (predefined SMS message) is sent to the specified mobile number.

Detailed connection diagram is contained in the video

System power methods

• From a mobile phone battery. A simple option in which the lithium battery will always be 100% charged. Over time, this will lead to its failure.
• External power supply (battery up to 12 V). Connects to the phone's power terminals together with its battery. In this case, the charge will remain at 70%. When the main source of electricity is turned off, the cell phone battery will power the security device.
• Without a mobile battery (when the device is connected to an alarm system with its own power source).

Advantages. Flaws

pros homemade security system:

• Minimum cost of initial components compared to industrial options.
• Autonomous operation (only periodic recharging of the phone).
• Prompt response.
• Possibility to connect several subscriber numbers.
• Options for connecting touch sensors.
• Wireless installation.

Minuses:

• The system is easily blocked upon detection. Requires hidden installation.
• Local triggering.
• Suppression, signal modification.

The use of a do-it-yourself GSM system is justified when it is necessary to install a security device with minimal resources, and the significance of the object is not high. For a home, apartment, or office, it is best to use industrial security modifications that are more reliable, efficient, and functionally diverse.

Friends! More interesting materials:

Areas of application of GSM alarm systems
GSM Security Alarm: A Brief Overview
GSM security alarm system for a summer residence

The article provides a diagram of a simple security alarm, a description of the operation, and resident software (firmware). The device is not difficult to assemble with your own hands. All the information necessary for this is in the article.

General description of the device.

The security alarm system is assembled on a PIC controller PIC12F629. This is a microcontroller with 8 pins and a price of only $0.5. Despite its simplicity and low cost, the device provides control of two standard security alarm loops. The alarm can be used to protect fairly large objects. The device is controlled by a remote control with two buttons and one LED.

Our company has moved to a new building. An old security alarm remained from the previous owners. It consisted of an iron box with red LEDs and a siren above the front door and a broken electronic unit.

I installed a small circuit board in the alarm box and turned this junk into a modern, reliable burglar alarm. Currently it is used to guard a two-story building with a total area of ​​250 m2.

So, the alarm provides:

• Monitoring of two standard security loops with measurement of their resistance and digital filtering of signals.
• Remote control (two buttons and one LED):
  • turning on the alarm;
  • disabling the alarm using a secret code
  • setting a secret code (the code is stored in the internal non-volatile memory of the controller);
  • indication of operating mode by the remote control LED.
• The device generates time delays necessary for dialing a secret code, closing room doors, etc.
• When an alarm is triggered, the device turns on the sounder (siren).
• The operating mode of the device is also displayed by an external light source.

The block diagram of a security alarm looks like this.

The following are connected to the main security alarm unit:

• 2 security loops with
  • NC – normally closed sensors;
  • NR - normally open sensors;
  • Rok – terminal resistors.
• External sound notification and mode indication unit.
• Backup power supply.
• Power supply 12 V.

Security alarm loops and sensor connections.

To monitor sensors (detectors), the device uses standard security loops. The resistance of the loops is controlled. If the circuit resistance is greater than the upper or less than the lower threshold, then an alarm signal is generated. The normal resistance of the loop is equal to the terminal resistor (2 kOhm). Thus, if an attacker breaks the wires of the loops or short-circuits them, the alarm will go off. It is not possible to disable security sensors this way.

This device has the following loop resistance thresholds selected.

Those. The loop resistance in the range of 540 ... 5900 Ohms is considered normal. Any resistance value outside this range will trigger an alarm.

Connection diagram of sensors (detectors) to the security loop.

Both normally closed (NC) and normally open (NO) security sensors can be connected to one loop. The main thing is that in normal condition the circuit has a resistance of 2 kOhm, and when any sensor is triggered, it causes an open or short circuit.

To increase the noise immunity of the system, the device digitally filters loop signals.

In principle, everything should be clear. The following are connected to the PIC12F629 microcontroller:

• Two loops through RC chains R1-R6, C1, C2, providing
  • formation of loop power supply;
  • analog signal filtering;
  • coordination with the input levels of the PIC controller inputs.

To determine the resistance of the loops, a microcontroller comparator is used. An internal reference voltage source is connected to the second input of the comparator. The reference voltage source (VS) values ​​for comparison with the upper and lower resistance threshold values ​​are set by software.

• Through the RC chains R7-R10, C3, C4, two remote control buttons and an LED are connected through the current-limiting resistor R11. The device provides digital filtering of button signals to eliminate bounce and increase noise immunity.

It is worth explaining the purpose of resistor R17. The GP3 input of the microcontroller has an alternative function - 12 V power supply for programming the microcircuit. Therefore, it does not have a protective diode that limits the voltage at the level of the supply voltage. When the voltage is 12 V at this pin, the microcontroller goes into programming mode. Resistor R17 reduces the voltage at the GP3 input.

• Through two transistor switches VT1, VT2, the microcontroller controls the siren and external LED indication. Because these elements can be connected with a long cable, the transistors are protected from line surges by diodes VD4-VD7. Transistor switches allow switching currents of up to 2 A.
• The 5 V voltage for powering the PIC controller is produced by the D2 stabilizer. Don't ignore the VD8 LED. Its functions include not only indicating power, but also creating a minimum load for the microcontroller. If the PIC controller consumes a current of less than 2-3 mA (for example, in reset mode), then the 12 V voltage through resistors R8, R10 can raise the microcontroller supply voltage above the permissible level.
• The inputs for the 12 V power supply and the backup power supply are isolated by diodes VD2, VD3. A Schottky diode is used as a diode VD2 in order to provide priority to the power supply when the voltages are equal to the backup power source.

I assembled the device on a board measuring 54 x 45 mm.

I installed it in the housing of an old alarm system. I only left the power supply.

The remote control is housed in a plastic case measuring 65 x 40 mm.

Software.

Resident software is developed in assembly language. The program cyclically resets all variables and registers. The program cannot freeze.

You can download the firmware for PIC12F629 in HEX format.

Controlling the security alarm from the remote control.

The remote control is a small box with two buttons and an LED.

It is better to install it indoors near the front door. Using the remote control, the alarm is turned on and off, and the secret code is changed.

Modes and control.

When power is first applied, the device goes into ALARM DISABLED mode. The LED does not light up. The device remains in this mode during the working day.

To turn on the alarm (ARM mode), you must press two buttons at once. The LED will start flashing rapidly, and after 20 seconds the device will go into ARMED mode, i.e. will begin to monitor the status of the sensors. This is the time it takes to leave the room and close the front door.

If you press any button during this period of time (20 seconds), the device will cancel the security mode and return to the ALARM DISABLED mode. People often remember something just before leaving a building.

20 seconds after switching on, the device will go into ARMED mode. In this mode, the LEDs of the remote control and the external display unit blink approximately once every second. In ARMED mode, the state of the sensors is monitored.

When any security sensor is triggered, the LEDs begin to flash rapidly, and the alarm system counts down the time after which the siren will sound. This time (30 seconds) is necessary in order to have time to turn off the alarm by typing the secret code on the remote control buttons.

There are 2 buttons on the remote control. Therefore, the code looks like a number made up of digits 1 and 2. For example, code 121112 means that you need to press buttons 1, 2, 1 and 2 three times in sequence. The code can have from 1 to 8 digits.

If the code is entered incorrectly or incompletely, you can press two buttons at the same time and repeat the code.

When the code is entered correctly, the device goes into the ALARM DISABLED mode.

If the correct code has not been entered within 30 seconds after the sensor is triggered, the siren turns on. You can disable it by typing the correct code. Otherwise, the siren will sound for 33 seconds and then the device will turn off (enter ALARM DISABLED mode).

It remains to explain how to set the secret code. This can only be done from the ALARM DISABLED mode.

Both buttons must be pressed for 6 seconds. Release when the remote control LED lights up. This will mean that the device has entered the secret code setting mode.

Then wait until the LED goes out (5 seconds). The device will go into ALARM DISABLED mode, and the new code will be saved in the internal non-volatile memory of the microcontroller.

Because Since the device microcontroller is clocked from an internal low-precision oscillator, the indicated timing parameters may differ by ±10%.

Security alarm states.

Mode	State LED	Transition condition	Switch to mode
ALARM DISABLED	Doesn't light up	Short press of two buttons	Waiting for SECURITY (20 sec).
		Hold two buttons pressed for 6 seconds	Setting a secret code
Waiting for security It is necessary to go out and close the front door.	Flashes quickly	Time 20 sec	SECURITY
		Press any button (cancel)	ALARM DISABLED
SECURITY	Flashes once per second	Sensor triggering
Time to turn off the alarm with a code (30 sec) Necessary to turn off the alarm by dialing a code	Flashes quickly	Correct code entered	ALARM DISABLED
		The correct code was not dialed within 30 seconds	Siren sound (anxiety)
Siren sound (alarm)	Flashes quickly	Correct code entered	ALARM DISABLED
		Time 33 sec	ALARM DISABLED
Setting a secret code	Constantly lit	Dial code	ALARM DISABLED

In practice, working with an alarm system comes down to actions.

• Leaving the premises. Press two buttons at the same time and close the door within 20 seconds.
• Upon entering the room. Dial the secret code within 30 seconds.

Disadvantages, possible improvements.

The device can be easily modified for your own specific conditions. All improvements concern only the hardware. They do not affect software.

• It is advisable to install two sirens. One in the external indication and warning unit, the other in a hard-to-reach place. The current of the transistor switch (2 A) allows this to be done.
• It would be necessary to protect the siren wires from short circuits with a transistor current stabilizer. In the presented version of the circuit, an attacker can short-circuit the siren wires and when the alarm is triggered, a short circuit will occur in the power source.
• If desired, you can connect powerful and high-voltage sources of light, sound, etc. through electromagnetic relays. The permissible current of the keys allows this, and the keys are protected against surges when switching the relay winding.
• You can use a battery as a backup power supply by adding a simple charging circuit to the circuit.

External view of the installed alarm system.

Currently, only the front door opening sensor is connected to the device. I plan, over time, to add security sensors. Two loops are enough to protect our two-story building.

By the way, if only one cable is used, then a 2 kOhm resistor must be connected to the second one.

There are other options for device software on the site forum. There you can discuss and ask questions about this project.

After purchasing a summer house or building their own home, the task of ensuring the safety of these objects remains important for their owners. Since dachas and country houses are located relatively far from security services, the security systems used should have a wide range of functions that will scare off a thief and warn the owner of the house/dacha, as well as security services, about an attempt to enter the protected facility. Specialized stores and markets offer a large selection of different security systems for real estate. Their cost can vary from several thousand rubles to tens of thousands. Not everyone can afford to purchase an expensive alarm system to protect their home. In this case, an effective solution to ensure the protection of real estate will be a homemade system. A DIY security alarm for your home and garden can be created by each of its owners who is at least a little familiar with the operation of simple electronic devices and can perform simple electrical installation work.

Advantages and disadvantages

A homemade alarm system for the home, compared to ready-made kits offered in the store, has its positive and negative sides. The advantages of such systems include:

• low cost of the created security system;
• the ability to independently design the configuration of a future security system;
• a simple version of a security alarm can be created from improvised means that almost everyone has at home;
• A homemade alarm system can be modernized and improved for specific tasks at any time.

The disadvantages of homemade alarms include:

• limited number of supported security sensors;
• lack of built-in protection systems against alarm blocking by external electronic devices of intruders;
• the need for basic knowledge of electronics and the need for electrical installation work;
• simple alarm systems for the protection and security of dachas cannot be connected to security service consoles.

What types are there?

Security systems used in a country house or country house can be divided into the following types:

• autonomous security devices;
• remote security systems;
• wired security systems;
• wireless security kits.

Autonomous security systems

Autonomous security configuration is the simplest. It includes security sensor devices that are located around the perimeter and an electronic unit that processes the signal from these sensors and controls actuators in the form of sirens and light elements.

When one of the sensors is triggered by the electronic unit, in accordance with the programmed algorithm, an executive signal will be generated, which will trigger the siren and turn on the light-emitting devices.

Note!

Autonomous systems have a psychological impact on the thief, and also allow you to attract the attention of third parties to the object.

Remote control protection for home and garden

Remote control security devices are classified as quick response systems. Their work consists in placing special sensors at the site, the activation of which leads to the transmission of an alarm signal to the security service console. After this, a team of security guards is sent to the site, who can not only prevent the robbery, but also “hot on the trail” catch the attacker.

Note!

Since remote control security systems require a monthly fee for the services of security companies, it is advisable to install them on houses and cottages where truly valuable things are stored.

Wired systems

Wired security systems are configurations that include electronic units in which many different security and functional sensors are connected using wires. When one of them is triggered, electronic units not only allow you to turn on external actuators that have a deterrent effect, but can also transmit an alarm signal to the security service consoles or to the mobile and landline phones of the owners of the dacha or home. Notification to the phone is carried out in the form of SMS, MMS mailing or voice dialing.

A DIY security system for a private home is quite complex to implement, as it requires laying a significant number of cables around the perimeter of the protected facility. Despite the complexity of this work, the advantage of such systems is the ability to install sensors over long distances and high protection from electronic devices that suppress the safety signal transmitted from the sensor to the electronic unit.

Wireless complexes for dacha security

Wireless security systems operate similarly to wired systems. The difference between them is that the signal from the triggered sensor is transmitted not through wires, but through a radio channel. GSM systems have become especially popular lately. They allow the transmission of an alarm signal to the owner of a house/cottage to any of his mobile devices coupled with an alarm, or to the remote control of security companies servicing this facility.

Note!

A DIY burglar alarm system of this type has one drawback - the lack of built-in protection systems from external devices for jamming alarm signals transmitted from the electronic unit. Therefore, when creating a wireless security configuration, you can use ready-made electronic units offered in stores and markets that have such protection systems .

What components will be needed to create?

A homemade security system requires the following devices and tools:

• electronic alarm control unit;
• a set of security sensors;
• actuators in the form of sirens and light-emitting elements;
• GSM adapter;
• patch wires;
• tools for electrical installation work;
• tools and materials for soldering.

Security sensors that a DIY home security system will turn on can be purchased at a store or market. You can make your own sensor to control the opening of doors/windows from a reed switch and a magnet. As an electronic alarm control unit, which will already have a built-in GSM adapter, you can use an old push-button mobile phone that supports a shortcut function.

The process of assembling an alarm system for your home and garden with your own hands

A do-it-yourself home alarm system can be created entirely from ready-made devices purchased in a store. In this case, the process of assembling the alarm is very simple - like a Lego constructor. The user will need to install an electronic alarm unit, connect to it the necessary security sensors located in protected areas, and actuators. After checking the functionality of the sensors and the activation of external devices, the process of installing such an alarm will be completed.

If an alarm system for a dacha or garage is made with your own hands using improvised means, using a mobile phone and homemade sensors, the creation process is divided into the following stages.

1. On the phone that functions as a central alarm unit and GSM transmitting adapter, you should set up a shortcut key to the phone number of the owner of the cottage/house.
2. After this, you should remove the phone keypad and solder the wires to the shortcut key.
3. These wires will be connected to a magnet and reed switch based sensor. This sensor is installed on a door or window in such a way that its target is open. When the door/window is opened, the reed switch will close the contacts, which will respond to pressing the shortcut key and the phone will automatically dial the owner’s programmed number.
4. In parallel with dialing the number, a sound siren connected to such a homemade alarm system can also turn on. The electronic unit in the form of a telephone can operate autonomously using a built-in power source, and a sound siren will require a 220 V power supply.

Which one to choose - homemade or ready-made kit?

If you don’t know how to make an alarm at your dacha with your own hands or doubt that everything will work out correctly, then perhaps the right solution would be to purchase a ready-made kit in a store. Before purchasing, you need to draw up your own security alarm project, according to which the seller will help you choose the most optimal security set.

For those who are well versed in the operation of electronic devices and can independently carry out electrical installation work, it will not be difficult to do everything themselves. The simplest alarm system for a dacha with your own hands will allow you to save significant finances, which can be used to purchase additional sensors and expand the capabilities of your security system.

How to install - independently or through a professional company?

For those who already know how to make an alarm system for their home using improvised materials, it will be easier to install it themselves. Although this process is quite labor-intensive, it will allow you to save on payment for installation work and subsequent maintenance of the alarm system in a special service.

If a homemade alarm system for a dacha is assembled from ready-made devices that provide the ability to work with security service consoles, then its installation should be entrusted to professionals who hold the appropriate license. Only such an alarm, if necessary, can be connected to the security company’s remote control.

Conclusion

Even the simplest DIY alarm system for a dacha is an effective way to protect your property from “uninvited guests.” Therefore, if you temporarily lack the funds to install an expensive security system, you must install at least a homemade one. Later it can be replaced with a more functional system, and for those who are well versed in electronics, a simple alarm system can be independently upgraded into a system with extensive capabilities.