Homemade gsm alarm for garage

How to assemble a homemade GSM alarm system?

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:

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).
Dismantle the phone down to the circuit board with the film glued on it.
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”).
Solder the wires to the ground, “patch”. To avoid false alarms, it is recommended to use the wires of one loop.
Seal the membrane to prevent shorting.
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 of a 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.

Source: https://foundmaster.ru/firefs/kak-sobrat-samodelnuyu-gsm-signalizatsiyu.html

How to make a homemade GSM alarm?

Modern society is simply unthinkable without security alarms. A security alarm can be either a fire alarm or a regular one that works against intruders. It all depends on where it is installed and what functionality it should carry. Do-it-yourself GSM alarm is a relatively inexpensive and quite effective solution for protecting a garage or home.

Now there are a large number of companies ready to install alarm systems, including GSM. The design of such systems is not as complicated as it might seem at first glance.

The main thing is to understand some of the nuances and it is quite possible not to resort to the help of third parties, but to make an alarm yourself. It will cost much less, and its constant maintenance will depend only on you.

That is, you can repair it and carry out service yourself.

If you want to do it right, do it yourself

The most widespread use of such alarms is in the garage. The simplest homemade GSM alarm system will help solve a number of problems and give you confidence in the safety of your car.

What do you need to have to make an alarm yourself?

Firstly, the ability to work with a soldering iron and the device itself.
Secondly, an initial set of knowledge in the field of electronics.
Thirdly, having an unnecessary mobile phone that operates on buttons. A touchscreen phone will not work.
Fourth, an ordinary magnet.
Fifthly, hermecon. It can be either three-pin or two-pin. It all depends on the connection diagram.
Sixthly, a set of wires and the presence of a single-key switch.

If you look closely at the above list, you can come to the conclusion that the cost of the future system is low. A DIY security alarm like this will last a long time if you follow all the following steps correctly.

Installation work

A good GSM alarm with your own hands will work for a long time and correctly if you follow the following steps step by step:

First, set up on your mobile phone that you will use for alarming the option to call a subscriber by pressing one button. This subscriber is you.
After this, disassemble the cell phone as carefully as possible and expose the circuit board located under the keyboard. Next, you need to select a connection diagram. There are only two of them. At this stage, it all comes down to whether the end call and power button are the same or not.

In cases where shutdown and hangup coincide, you need to solder a wire to this button. The second wire is soldered to the number key, which corresponds to the shortcut function. This is where your phone number is dialed. As for the hermecon, you need to use one that has a standard circuit.
In cases where the shutdown and hang up do not coincide, it is necessary to solder another wire to another button. In this case, one of the wires will be common. As for the hermecon, the one with three contacts is used.

Proceed with the installation of the closed circuit, working with the diagram. It is necessary to install a magnet on the garage door, and then adjust the reed switch so that contact with it means an open circuit.

The resulting security alarm works quite simply. If the garage door begins to open, the contacts are closed using a reed switch. As a result, a call comes to your phone. This serves as a wake-up call.

It is important to note that before starting installation, you should consider how to do the work so that the security alarm is least noticeable to prying eyes. In addition, all elements must be protected from moisture.

The list required for installing an alarm system includes a switch. It just serves to turn the system on or off. Everything is very simple and functional.

You will immediately be able to appreciate the main advantage of installing such an alarm system. The fact is that it does not depend on the electricity network. You will only need to timely charge the mobile phone used in the system. There are batteries that can hold a charge for more than two weeks. By the way, similar mobile phones with batteries cost from 890 rubles and more.

In garages that have an electrical network, the adapter can be mounted directly into the network. Then you will need to ensure that there are no power outages.

A nuance that is important to know

If thieves get inside your garage, which is equipped with an alarm, they can quickly find it and turn it off. In this case, the alarm has a certain time for it to go off. This lasts literally a couple of seconds. At this time, the process of establishing a connection with the phone number of your mobile phone is underway.

When the door is quickly closed, the call is immediately dropped. In order to prevent this, you can install another device to the magnet. It will have to prevent the magnet from opening the circuit.

The simplest option is to build a system in which the magnet will move slightly to the side when the garage door is opened. In this case, the magnet and reed switch will not touch, and the circuit will not be open. You can return the system to its normal state if you simply move the magnet to its original position.

Currently, it is also recommended to install a video surveillance system. But these are additional expenses. In most cases, it is enough to have a DIY GSM alarm system, which will help you find out in time that a stranger has entered the garage.

Source: http://klivent.biz/protivopozharnye-sistemy/gsm-svoimi-rukami.html

Alarm in garage without electricity. How to do it right

Alarms for garages without electricity

Autonomous garage alarms are designed to increase the protection of the car and the premises itself from thieves and thieves. At the same time, you should not purchase expensive and sophisticated equipment. You can make a simple GSM alarm with your own hands, and the article will tell you the details.

Features and types of alarms in the garage

When installing an alarm system in a garage, its main characteristics should be:

Reliability and functionality.
Mobility.
Resistance to aggressive external environments.
High-quality signal sound.
Possibility of monitoring remotely.

Alarms for a garage can be very different:

GSM (see How to make a GSM alarm for a garage with your own hands) is a device that allows you to protect a car from a distance.
Autonomous is equipment that meets all norms and standards. Autonomous garage alarms are one of the most popular types.
GPS is an innovative option that allows you to reliably protect your car. After a vehicle is stolen, it allows you to track where the car is via satellite.

The photo shows a garage that is protected by an alarm system.

Modern garage with alarm system

Wireless . A very convenient device that does not require the use of wires. This alarm system for a garage works on batteries and on a battery.
GSM using wired sensors . This convenient device is easy to install and, if desired, can be installed on your own. This does not require any special knowledge or skills.
Alarm system for garages without electricity is a device that operates autonomously, without the use of electricity, which is especially convenient in the absence of electricity. For example, when a garage is just being built, an alarm system will be indispensable.
Anti-theft , will allow you to prevent it even at the stage of fire initiation.
Homemade is the most affordable device option for protecting your own garage.

How to install a GSM alarm in a garage

Homemade GSM alarm system

To install the device you will need:

An old mobile phone, definitely a push-button one.
Ordinary magnet.
Sealed contact or sealed contact, regular type or with three contacts, depending on the connection diagram.
Wires.
Single key switch.
Soldering iron for mounting the structure.

The GSM alarm installation instructions include several steps:

On the phone, one button is used to set up a call to a subscriber whose number corresponds to the current mobile phone number of the garage owner.
The phone comes apart neatly.
The board under the keyboard is exposed.
The connection diagram is selected, which depends on the device of the mobile phone: on the location of the on and off function - on one or two buttons. The diagrams can be seen in the video.

Connecting an alarm system to a mobile phone

When placing the end call and power on commands on the phone with one button, one wire is soldered to this button, and the other to the number key for a shortcut.

A magnet is installed on the garage door.
The reed switch is adjusted so that when connected to a magnet, the circuit is open.

The principle of operation of the alarm is as follows:

When the gate opens, the reed switch closes the contacts.
The phone starts ringing the garage owner's number.
To bring the alarm into working position, and then, vice versa, the circuit provides an additional switch.
Where to mount the telephone, switch and other structural elements is determined by the design of the garage and the convenience for its owner.

The big advantage of this type of battery-powered garage alarm is its independence from the electrical network. You only need to charge your mobile phone battery in a timely manner using a standard adapter. If there is electricity in the garage, it is better to install the adapter into the network so that it can work through the phone battery during power outages.

Such a GSM alarm requires a certain time to trigger, which is a few seconds while the connection to the owner’s number is made. If intruders close the gate very quickly after breaking in, the circuit will open and the call will be reset.

There are many garage alarm systems available. Everyone chooses for themselves the type that satisfies them in design, reliability, and the price will not harm the family budget.

Source: https://1pogarazham.ru/ohrannaya-signalizaciya/278-signalizaciya-v-garazh-bez-elektrichestva

GSM alarms for the garage: which one to choose?

Owners of personal vehicles tend to worry about their serviceability and integrity. A garage is used for these purposes because it can reliably protect the car.

However, modern attackers have learned to easily get inside and steal a four-wheeled friend. But car enthusiasts have found a way to counteract this with the help of a GSM garage alarm.

Next, we’ll figure out which of its many versions to choose.

They consist of creating reliable protection for a garage located far from residential areas. If there is no video surveillance and security guards, these are excellent conditions for intruders to penetrate.

Even advanced locks will not be able to prevent entry if there is no additional protection.

But the GSM system is a different matter; naturally, it will not stop thieves on its own, but it will transmit information about unauthorized entry by alerting the owner to a smartphone or telephone.

The usual configuration of security systems based on this version of the alarm system consists of electronics for processing and transmitting information, motion sensors and unauthorized opening of doors, and a remote control.

Advanced versions are equipped with surveillance cameras, microphones and sirens in different variations. Thanks to additional functions, you can scare intruders, because they will know that their presence has been noticed and they are being monitored.

In most cases, this is enough to force thieves to leave the garage.

But that's not all, as the extended list of optional equipment offers other useful features. You can install various sensors that detect temperature changes, the appearance of smoke, deliberate power outages, and unnatural vibrations. Due to this, the capabilities of various security systems are noticeably increased, and the car is protected more reliably.

This type of security system operates on the basis of continuous reading of information from various sensors. If one of them detects unnatural activity, a signal is sent to the central unit, for which a high-frequency radio signal or a separate main wire is used.

The electronic module starts working - a sequential list of actions is performed in case of hacking:

activates the alarm and other provided protection methods;
sends an alert to all numbers included in the database;
if one or more cameras are connected, photos or videos are sent with information about the situation in the garage;
If the setting is completed, the security system dials to a landline or mobile number.

But protection from robbers is not the only area of application for GSM alarms. It is capable of warning of other dangers to transport or the integrity of the garage.

We are talking about a possible gas leak, since many cars operate on its basis, a significant increase in temperature (fire or small fire), the appearance of smoke, an unknown reason for the power outage.

To do this, you need to connect additional capabilities of the security system - we have already talked about them.

Typically, notifications from GSM alarms are transmitted using cellular operators. But it is possible to send a signal about various problems with the car using a special key fob.

They are offered on the basis of two types, similar to GSM alarms for protecting the integrity of the dacha. Let's take a closer look at them.

The wired version allows the use of various sensors using a connection based on backbone cables. This requires careful routing of numerous wires, which can be time consuming and require significant effort. But their advantage lies in the fact that the signal transmission cannot be jammed using various equipment from the arsenal of advanced robbers. Even if special means are used, the signal will still be sent to the central unit, and the stages of protecting the garage and its contents will be carried out sequentially.

The wireless version is much simpler at the installation and operation stage. The sensors send a signal to the electronic module using a secure radio signal. A normally used channel is very difficult to mute. But especially experienced attackers are sometimes able to overcome this obstacle. Because of this, it is recommended to use a combination version of this type of security system. Due to this, the vehicle will gain truly reliable protection, and the owner will have confidence that it will not be easy for thieves to go unnoticed, since sometimes they are even able to reach a wired signal transmission line and block it using a technical method, or simply cut it.

They are divided into autonomous and mains-powered with a standard voltage of 220 V. An independent power system is necessary in cases where the main one is disconnected, since some attackers have learned to disable it.

In addition, sometimes an emergency occurs and power from the network becomes impossible due to various reasons. Don't assume that stand-alone systems will work for a short time.

It all depends on the type of batteries used - some versions can be used continuously for a year.

The functionality based on the operation of an autonomous power system will be noticeably reduced. We recommend using an integrated approach - using the regular power supply as the main one, and if it is unavailable, switching to a stand-alone option.

A large number of devices are now sold for high-quality protection of the garage and its contents from various criminals. For many, the issue of cost comes first, since the increase in the functions of the security system implies an increase in its price. Before choosing, you need to evaluate your financial capabilities and build on them.

We recommend paying attention to specialized GSM systems created exclusively for the garage:

the garage version called smart watch 4 is moderately priced and has sufficient functionality;
the guard-garage system has similar properties.

But it is necessary to realize that the listed systems will not provide complete protection. Usually they are not even included in ratings of the best GSM systems, since their functionality is very limited. To be sure that your car is protected, we recommend that you don’t skimp and forget about budget systems. If cost is very important, you should pay attention to the average price category:

the autonomous version of the SafeHouse alarm system is not too expensive, but is quite reliable;
an advanced modification of the 1M watch has no less interesting characteristics and an affordable price.

This option is possible if the car owner has some skills in various electronics. It can be considered an alternative to security systems that are too expensive or very cheap, essentially offering almost nothing.

The fact is that thieves can easily neutralize too simple alarms, and sound effects are not capable of leading to a panic attack in experienced car thieves. In this case, you can provide the garage with its own protection through various purchased components.

The finished version is usually of high quality and a significantly reduced price.

You will have to rely on specific knowledge and various materials and tools. To create a security system yourself, you need to prepare:

telephone for use as a GSM module - an inexpensive but functional model will do;
a sufficiently powerful magnet together with a reed switch;
efficient and reliable switch;
set of conductors;
necessary installation elements;
various tools like a soldering iron, pliers and various types of screwdrivers.

The phone is being improved to communicate with the required number by pressing one button.

One of the keys is used to make a quick call, and the conductors are connected to the telephone board - they are connected to a remote switch designed to replace the standard button on the surface of the mobile device.

You can assign specific functions to different buttons. For this, wires are connected to each of them, and a reed switch based on three contacts is used.

All necessary connections are made using a soldering iron. Various elements are installed based on the garage area. A special magnet together with a reed switch is mounted on the door surface.

After this, the correctness of the connections is checked - it is necessary that the contacts are connected reliably in the event of unauthorized entry. This will activate the protection system and send a signal. The notification speed is about 2 seconds, so this version copes with its task very reliably.

In this video you will find an overview of the GSM alarm system for the garage with its pros and cons.

Source: https://dekoriko.ru/postrojki/garazh/gsm-signalizaciya/

How to make a mobile garage alarm with your own hands from a cell phone? Instructions, diagrams and solutions

For car owners, their property on wheels is a matter of great concern. The better the car, the more people want to steal it.

And if parking lots are now well equipped with cameras and security, garages remain a weak point for many. There is no one to look after the car in the absence of the owner.

There are three categories of car enthusiasts: wealthy, rural and urban. The first ones will simply buy insurance or hire a security platoon with machine guns, and everything is fine. This article is not for them. For the latter, the garage is always next to the house, or right in the yard.

Also, there is no great need for an alarm system . The worst situation is for city dwellers, whose garages are often kilometers away from their homes. And not all collective garages are well guarded. And in rural areas, if the owner is fishing or has gone mushroom picking, the car can easily be “taken for a ride.”

…

Kinds

Security alarms have a long history. The premises are protected from penetration by switches connected to windows, doors and hatches that are inaccessible to an intruder. Even alarm in industrial designs of products are protected. An attempt to close or break them will equally result in an alarm being triggered and an alarm signal appearing.

There are non-contact sensors based on infrared rays, ultrasound, or centimeter-wave radio waves. To protect multiple points, controllers are used that can determine which object has been opened.

The alarm system is complemented by hidden surveillance cameras . Professional burglars, both criminals and intelligence agencies, first carefully study the object, collect information, and only then choose a method of penetration. So, if you don’t bring suspicious people into your garage, then you have a great chance of protecting your car even from professionals.

In addition to determining whether a hack has occurred, it must be reported somewhere. This could be a siren, or silent transmission of a signal to the security console, via wire, via a telephone channel, including GSM , via radio in any range, etc. Commercially available systems are always tied to the current technical capabilities of their time.

For example, a garage security system includes a sensor(s) and a GSM modem, from which an SMS to the owner or to the police if a security agreement has been concluded. However, often all this is very expensive, and we have the majority of “budget” citizens. Therefore, you can easily make an alarm for your dacha and garage with your own hands.

The photo below DIY garage alarm

What can you do on your own?

Enough. Nowadays, almost everyone has an old cell phone , often more than one. It’s a shame to throw them away, and it’s not worth it. They can be used to make an excellent homemade garage alarm. Buy a SIM card without a monthly fee with cheap SMS and insert it into this phone.

Then there are two ways: solder wires to a specific key on the phone board, or make a “robot” . Since the entire Internet is full of the first option, let’s consider the second. Not everyone can solder wires to the board in the right place; the phone becomes unsuitable for normal use.

All this looks ugly from a technical and practical point of view. And the second option is devoid of all these disadvantages, although skillful hands will also not be superfluous. Therefore, we will consider it in detail in the next section, but for now a little theory about how cell phones are used in such cases.

The basic principle of a JSM alarm for a garage is very simple: you need to call your phone. And if we see that they are calling us from number X, then this means only one thing - they are stealing our car. Well, or there was a false alarm .

The phone is pre-prepared for calling a “short” number, that is, one of the keys for dialing is programmed. This requires just one click, but not always. In more or less modern “old” phones, you have to press twice: the first time for the display to “wake up”, and the second time to send a call.

Therefore, we have to use some kind of automation . Instead of a simple call, you can prepare to send an SMS with the specified text to the car owner’s number. The phone will be ready to send it at any time, if, of course, everything is in order with the connection. As a rule, this is true when the SIM card bill is paid.

DIY garage alarm: diagrams and solutions

How to make an alarm for a garage with your own hands? The diagram and design are shown in the figure:

D1 timer chip works as a pulse generator with a period of several seconds. When contact S2 is open, the timer is in an unchanged state and does not count. When S2 (the sensor is triggered), the pulse generator starts working, and the counter D3 counts the pulses arriving at its input.

If a sensor with contact opening is used, then the circuit only needs to be changed slightly: Resistor R5 is connected to the negative wire (blue terminal), and its value is taken to be 10-20 kOhm.

Sensor switch S2 is connected to the input of the element and the positive logic power supply circuit. In two words: input D2.

1 “pulled to the ground,” but this jargon is understandable only to digital technology experts and needs to be explained to everyone else.

You can use several sensors in a common circuit (this is called a beam by security specialists). You just need to take into account the logic of their operation: for normally open sensors they are connected in parallel , and for normally closed ones - in series . But remember: the more sensors on one beam, the more “hemorrhoids” it causes.

After a few seconds, relay K1 and then electromagnet K2 . The first press of the phone button occurs (how this is done is literally just below). After another short period, pressing again sends an SMS.

Then the counting continues and, when a pulse appears at pin 9 of the counter, logic element D2.1 blocks the operation of the timer and the “robot” stops until it restarts.

(Chip D2 K561LE2 , and resistor R6 must be selected so that the current through VD1 does not exceed 9 mA) With capacitor C1 , increasing its capacity, you can select the counting speed.

But you should not get carried away with this, since the owner of the garage, who set it to alarm with switch S1 , still needs to go out and close the door behind him.

The design of the device is shown in the same figure below (two projections with a top view). A telephone is placed in a cell glued together from plastic or wood, and an electromagnet acts on the button prepared for a call through a hole in the cell using a rod 5.

Coil 1 serves to retract an iron rod 4 , which moves freely along a sleeve 2 made of copper or aluminum tube, or hard and smooth plastic.

Springs 6 and 7 balance the position of the rod, so that the phone can be freely removed from the cell, and, at the same time, the button is reliably pressed when the coil is activated.

3 - it's just a decorative sleeve.

0.2 mm is wound onto a coil .

There must be quite a lot of turns (about hundreds) for the magnet to work, but not to get hot.

However, since it operates for a short time, it will not have time to heat up. The main thing is reliability of operation (you will also need to select the stiffness of the springs).

To ensure that everything is secure and does not come off, the assembly is placed in a common housing of suitable dimensions: a is a part from a cell with an electromagnet that we already know, and b is a board with electronics assembled according to the diagram shown.

It is clear that the size of the article does not allow us to cover the entire project in great detail, but with the help of a familiar electronics engineer or radio amateur, the garage owner can cope with this simple circuit.

The circuit would be even simpler (and cheaper!) if assembled on a microcontroller , but this requires programming knowledge and is not accessible to everyone. Speaking of price.

All parts can be purchased in online stores; those used in the scheme cost about rubles; there are still many of them in surplus from Soviet stocks.

You can choose modern imported analogues, but it will cost more.

Help: The circuit is powered by a regular charged car battery, which, by the way, can also power a cell phone charger. From time to time, all that remains is to monitor the charge of the battery itself and recharge it.

A home-made alarm system should be placed discreetly in the garage so that no one can guess that it is there. The phone and electronics must be kept in a dry place and at a temperature not lower than +5 degrees. The phone must be within the radio visibility range of the cellular network and reliably register with it.

How to use a garage alarm from a cell phone?

It is very simple to use an LSM alarm system for a garage. Immediately before leaving the garage, switch S1 . The circuit starts to work in alarm mode, but thanks to the leisurely counting, the counter will not have time to count before it triggers, unless, of course, the owner of the garage hesitates. In any case, he has 10 seconds left to close the door.

The owner himself can check the operation by simply opening the garage and receiving an SMS .

However, it is not at all necessary to spend money on unnecessary SMS; it is enough to simply turn off the S2 after entering the garage. But under no circumstances should anyone see this from outsiders.

Otherwise, he may repeat your actions, and then proving his involvement may be very difficult. Everything is easy and simple only in detective stories.

It makes sense to use an old cell phone in a garage alarm ; it will protect much more valuable property for ridiculous money. The disadvantage of a do-it-yourself garage security system is the need to work a little with your hands and, possibly, your head, solving small design problems . But for some it may even be a pleasure.

Read about how to make racks, shelves, a workbench and a car lift in your garage.

Watch the video on how to make garage alarm

Source: http://ru-house.net/postrojki/garazh/obustrojstvo/mob-signalizatsiya-svoimi-rukami.html

Types and features of garage alarms

A garage is a place where the car is protected not only from the negative influences of the weather, but also from the criminal activities of burglars and car thieves.

Unfortunately, modern attackers are becoming more and more cunning, and the arsenal of ways to break into a garage is growing all the time.

Sometimes a car alarm is simply not enough and therefore the place where the car is stored needs to be strengthened with additional protection, that is, there is a need to install a security alarm.

A garage is a storage place not only for a car, but also for many other things that do not have enough space in the house. For example, there may be bicycles there, wheels and tires, tools and other equipment. Of course, everyone wants to ensure the safety of their property. Even the simplest and cheapest alarm system will help achieve these goals.

Thieves can get into a room in a variety of ways:

Removing hinges or a lock is a very simple and virtually silent method, common when breaking into garages with padlocks.
Opening with a master key. Experienced attackers can open a simple lock even with an ordinary paper clip, and sometimes they even manage to pick up the key. This can be avoided by installing several complex mechanical locks.
Metal cutting. Thin sheets can easily be manipulated by tools, and thieves use the hole made to get inside.
Brick wall break. A hole in the wall is made with a crowbar.
Removing the roof. The sheets are bent or broken with a crowbar. In this case, car theft is excluded, but other things may be stolen.

Of course, these are not all ways to enter the premises, so simply strengthening the structure will not be enough for complete safety. An alarm system can help protect weak points and outwit thieves. There are a variety of models on the modern market, differing in many parameters.

In general, we can highlight the following details that must be present in the system:

Opening sensors. Installed on all door and window openings, as well as on garage doors.
The control panel is the heart of the system; the functioning of the entire alarm system depends on it. Powered by electricity, which must be installed in the garage. The panel must be installed so that it cannot be seen immediately upon entry.
Motion sensors. Cover the entire room. They are placed inside the garage in the corners opposite from the entrance so that when the door is opened, the person entering falls into the sensor’s coverage area, and there are no obstacles on the way at a height of at least 2.5 meters.
Vibration sensors. Prevent attempts to break through walls or roofs.
Siren. It scares away the intruder and attracts the attention of people passing by.
Microphone. It will help the owner, when a signal is received on his phone, to connect to the garage and hear whether the alarm is worth calling security or going to the place.

When selecting the optimal system, the following factors should be considered:

It should be as easy to use as possible. Unnecessary management difficulties reduce the reliability of the device.
If the garage is equipped with a stove, then the installation of smoke detectors is excluded. In this case, you need to equip the room with an additional motion sensor.
When the garage is part of a gated community, a siren should not be installed. The chance of false alarms increases many times over, and loud sounds will lead to dissatisfaction with neighbors and create tense relations with them.
When installing wireless systems, it is important to remember about the insulation of the garage, and also take into account the ability of the system elements to withstand negative temperatures.
It is important to be sure of the availability of constant electrical power or to have an external additional battery as a backup option. If there is no electricity, then you should use an alarm system that operates autonomously using batteries.

There are several main types of alarms, differing in technical characteristics. You can determine the appropriate type by taking into account the parameters of the garage.

GSM alarm is a wired device that sends an alarm message using mobile communications. Such devices have a wide range of options, and the standard equipment includes motion and door sensors, a microphone, a siren, a router, and sometimes a camera that records the intruder. Often the kit also includes fire detectors that respond to smoke.

The most common devices operating on this principle are the following models:

Sapsan GSM MMS;
Sapsan PRO 4;
"Erythea Micra-2".

Frequently purchased devices include Express and Dacha 01 .

Currently, such models are widely used and are not inferior in quality to GSM systems . The use of one or another type of alarm depends on the needs of the owner and the individual characteristics of each room.

Installing and maintaining professional systems can cost a pretty penny. Therefore, garage owners often assemble circuits themselves. Such models can also provide security; moreover, if we are talking about protecting an inexpensive object, this will be advisable from a financial point of view. You can make several types of security systems with your own hands.

Autonomous alarm system equipped with a siren. The work is based on the principle of motion sensors reacting to what is happening in the room, after which the signal from them goes to the siren. It produces a sound that can scare away a thief.

The manufacturing process is as follows:

open the motion sensor and remove the spherical element from it;
remove the board by bending the metal latches;
connect batteries and relay coils to the sensor;
connect the power supply and siren using terminals;
install the siren outside the garage, and the switch in a secret place;
configure sensors: most often the parameters of operating time and sensitivity are set.

GSM alarm from a mobile phone. The advantage of such a scheme is its independence from the power grid, provided that the phone battery is charged.

To install this type of security circuit, you will need a cell phone (not a touchscreen smartphone), a multimeter, phone cord and copper wire, a switch, insulation tape, glue, magnets, and iron clips.

The device's GSM system is an advanced telephone that automatically makes a call when intruders enter the garage. The simplest and cheapest mobile phone model can be used for the design - this is the norm.

System manufacturing stages:

Cut a metal paper clip into two elements, one centimeter long. Attach them to the door from the back side. It is important that they lock when the door is opened halfway.
Remove the insulation from the telephone wire. Divide the wire itself into two wires, placing their ends on the contacts. Connect the opposite ends to the multimeter.
Set up your phone: insert a working SIM card with a positive balance, turn off sound alerts. The last outgoing call must be to the number that will be used to call in case of unauthorized entry - this is a mandatory condition.
Remove the back cover of the device, remove the battery and other internal components. Secure the copper wires with electrical tape on the inner and semicircular contacts, without covering the call mute button.
Return the phone elements to their place with the exception of the back cover, secure with electrical tape. Turn on the phone.
Place the device in a hidden place, connect the copper wires to the contacts on the gate.

When installing a system of this type, you should take into account the fact that it will not be able to operate at subzero temperatures. You can influence this by installing an incandescent heating lamp next to the phone.

A significant drawback is that the alarm will take a couple of seconds to respond to intrusion. If the gate is closed in a short time, the call will begin to be made and immediately reset.

An incoming call can also be configured not to the owner’s personal phone, but to be forwarded to the system of a private or private security organization. If an alarm is given, a team will go to the site. To enhance the effectiveness of control, you can also install CCTV cameras.

For those who are not confident in their capabilities or simply do not want to do independent work, there is a wide range of different models.

When choosing a security system, garage owners often pay attention to the cost, since sometimes the purchase can cost quite a large sum. The price depends on the number of different options and settings.

Below are the most popular models on the market from reliable manufacturers that have won the trust of customers.

The system produced by IPRO can be installed in almost any type of garage. In addition to standard metal and permanent garages, the alarm will work in wooden structures (subject to the optimal temperature level). It can also be used in rooms without electricity - it is connected to the car’s battery.

There are two types of “watch” configuration: mini and pro version.

The simplified set does not include motion and fire sensors, there is no microphone and the number of magnetic contact sensors is reduced.

In general, the system is fully equipped with all the necessary elements and the owner does not have to purchase the necessary parts, except for the vibration sensor, if additional roof protection is needed.

This model is produced by NPB Sibirsky Arsenal, a company with very extensive experience in the development and implementation of systems that ensure safety.

The alarm system is an autonomous motion sensor with a GSM module and a built-in camera.

As soon as the alarm receives an alarm, the camera takes photographs, which are then sent to the owner’s phone number. Cost – 6.5-8 thousand rubles.

Advantages:

ease of installation: the alarm system is independent of electricity;
resistance to low and high temperatures;
the camera is equipped with backlight: pictures can be taken even in complete darkness;
the system is controlled both by SMS messages and using a key fob;
There is an application for various types of smartphones;
The memory includes six numbers for sending messages.

System shortcomings:

lack of ability to connect additional sensors;
Battery life does not exceed six months.

This is an alarm system produced by Altronica, another leader among similar organizations. The cost of the configuration is slightly higher than that of the previously mentioned systems: from 5.5 to 9.5 thousand rubles. But the device includes a lot of useful options.

Advantages of the Tavr system:

Possibility of working with wireless sensors.
Complete autonomy of all system elements. The device can operate on batteries, their validity is about a year.
Easy to install and operate: the alarm works wirelessly, configuration is carried out using SMS messages.
Ability to work in different temperature conditions.

The system includes two blocks connected via a radio channel. In the event of a break-in, the owner is notified by message or call to a mobile phone.

"Tavr" can also report critical changes in temperature or the need to replenish the balance. If an alarm is triggered, the system listens to the room with a built-in microphone.

These are truly high-quality products that provide a decent level of protection against thieves.

Above are the most common models on the market , which have a large number of positive reviews. Of course, the range of these devices is unlimited.

With such a wide range of alarms, the choice is determined by the structural features of the garage and the individual wishes and capabilities of the owner of the premises.

Most often, the choice is made in favor of wireless systems that operate autonomously and are designed to last a long time, such as Intruder Alarm.

Before installing a security system, it is important to determine how necessary the large number of options and parameters included in some models are. The cost of alarms varies greatly based on technical characteristics, which are sometimes impractical for owners of small and inexpensive premises.

When choosing the optimal system, it is important to pay attention to the ease of installation and operation , the breadth of settings and additional parameters.

But you shouldn’t save too much when buying a system, as this calls into question the quality of its work. With the abundance of models currently on the market, it is very important to choose carefully and wisely.

There are cheap systems that do not guarantee full security of the premises, as a result of which the owner may lose his property.

Models equipped with GSM are able to almost instantly notify the owner of illegal activities in the garage.

The coverage area of mobile communications is currently wide, which facilitates the unhindered passage of the signal even from an underground garage.

The best option to ensure complete security would be to transfer the alarm signal to a company specializing in security services. In addition, such models have a lot of other functions that simplify the life of the garage owner.

Battery-powered models are also popular. This is due to the fact that they do not depend on electricity and are easy to install, although they have a slightly smaller range of useful options. At the same time, their functionality is sufficient for high-quality protection.