There is an alarm signal to the mobile communication channel. But often their functionality is superfluous, and the cost is very high.

Method number 1 - elementary

In order for or in the garage it is not necessary to buy expensive devices and even understand the circuitry.

It is necessary to have an initial level of skills to work with a soldering iron, an old push-button mobile phone, a two-contact gercon, a magnet and a single block switch.

In a mobile phone, which will be used as a GSM module, configure your phone number to the quick call button. We disassemble the phone and take the contact board located under the keyboard.

Gently solder the wires to the contact plates of the Quick Call button. The Herckon model should choose "normally open." This means that if the gercon mounted on the garage gate jacket and the magnet mounted on the door sash are in contact, the electrical circuit is open.

The switch is crashed into one of the wires and serves to block the signal transmission when the garage is open for a long time. It is much more convenient than to turn off the phone every time or block the work of Herkeon, putting a magnet on it.

Naturally both the switch, and the phone, and the rector itself it is desirable to install so that the attackers did not find them at least the first 10 seconds after the triggering.

Food on the phone is served through a regular adapter with a garage power grid. The presence of a capacious telephone battery makes such an alarm system practically autonomous.

Method number 1 ½ - still elementary

The proposed scheme can easily be used to convert a simple automotive alarm in GSM.

For this you need an additional relay, which will slow down contacts the quick call buttons. The relay itself will be activated by a pulse from the wire, which goes to the lines of car alarm.

At the same time, in order not to be an alarming bell each time, when the car is installed or removed from the alarm, you can use a relay with a time delay of 5 seconds. Power on the phone can be served from the car cigarette lighter.

Method number 3 - Professional

Having initial knowledge in the electronics field, you can create a completely full-featured GSM signaling system. It is based on the PIC16F628A microcontroller.

As a GSM module, Siemens phones C35, S35, M35, C45, S45, M45, ME45, SL45 are used, the controller is compatible only with these models.

These devices can operate, both normally open and normally closed contact groups that can be attached to one of the inputs.

With a serial connection of detectors in one chain in the standby mode, they must be normally closed, with emergency response, the chain opens.

With a parallel connection, the duty mode of each device must be open, and the emergency is closed.

To the output three-stroke relay - XS4 can be connected with a refuge, an alarm lamp or any other signaling equipment. Power contacts of the relay transmit the rated power of 2.4 kW at 10 A.

Programming controller

After the scheme is ready to program PIC16F628A on a specific sequence of actions after an alarm receipt to one of the inputs.

The entire executive program is written in the first SIM card cell inserted into the telephone. The ninebitrary code is a set of numbers that is recruited in the cell. The first position corresponds to the alarm mode, it can be either active, or waiting, displays "0" or "1".

From the second on the fourth position, the phone numbers for which should be called in case of alarm response. They are recorded in the phone's memory as the first three rapid numbers. The values \u200b\u200bare assigned "0" if the number should be called and "1" if it is not active.

Position 7 has 10 indicators - this is the triggering time to which the output of the controller will be turned on, from 1 second to 60 minutes.

Position 8 and 9 determine the operation mode of the alarm inputs and have three positions:

• "0" - alarm is disabled;
• "1" - the trigger will be carried out when the contour is broken;
• "2" - the trigger will be performed when the contour is closed.

To protect your property, which is located in the apartment, a country house or garage, various types of signaling systems are used. High efficiency is the GSM security complexes. These systems allow you to conduct continuous control of the object and in the case of penetration of a foreign person to notify the owner or special services. For this purpose, cellular capabilities are used: messages can be distributed as an SMS or MMS or perform dialing to mobile or stationary numbers entered into the alarm memory module. Reliable and multifunctional protection of this type of system are quite expensive - more than 10 thousand rubles for the basic configuration, which is not for everyone can be on the pocket. The output in such a situation can be created by GSM alarm with your own hands from the phone that is no longer used. This method is quite easy to implement, and financially carries the minimum load.

Principle of operation GSM protection and its main elements

To properly make the signaling, it should be understood, according to which principle it functions, and which components are included in its composition.

The main functional node of such systems is the GSM module, which ensures the transfer of warning signals from the object to the home or garage owner. Transmission is carried out using high-frequency mobile waves of one of the operators whose services are used.

The alarm is applied in accordance with the data that the electronic alarm unit receives from sensitive sensors and sensors installed on the object. These can be devices that react to the opening of the door, windows, breaking glass, movement in the protected perimeter. Camcorders and microphones can also be used to maintain relevant records and many other functional sensors that react to an increase in temperature, the appearance of smoke, water and gas leaks. Sensitive elements are connected to the electronic unit with a wireless way using a radio channel or by paved wired highways.

What will required for independent signaling?

The easiest option of homemade security systems is GSM alarm from the phone. In this case, the role of the main element - the transmitting node will perform a mobile phone, which, according to its functional purpose, is designed to call a subscriber or transferring to it. Due to this, the task of creating their own alarm is significantly simplified.

In order to proceed with the development of a security system of its home, the basic skills of electrical work, a set of suitable tools and spare parts, will be required. The list of the required see below:

• an unnecessary, but functioning mobile phone (the phone must support the function of a quick call number by pressing and holding one of its function buttons);
• geron with a magnet,
• simple household switch;
• soldering iron with a solder and flux;
• mobile phone charging unit;
• multimeter;
• conductors and insulating tape;
• installation tools (screwdriver, pliers, etc.).

The role of the sensor that will be triggered when opening the door or window is assigned to the geron with a magnet or a regular push-button switch. This kind of sensor is connected to the mobile phone using conductors.

The functioning of the alarm made by the personally

Homemade GSM Alarm from the mobile phone works on the following principle. If the sensor installed on the object is triggered, the contacts are closed by one of the telephone keys, which is used as the Quick Call button. As soon as the contact terminals are connected, there will be a quick call feature and the owner of an apartment or house will be performed by a dialing that will warn that there is someone outsider at the facility. Thanks to the rapid alert with such alarm, the owner of the house will be able to cause help and independently arrive at the object, which will not allow an attacker to determine theft from the apartment or the car hijacking from the garage.

In addition to sending a call, you can also add elements of light and sound psychological impact in the form of sirens and flashing lanterns, which will be triggered with a call to the subscriber. On a guarded object, you can set several sensors that will trigger on one shortcut key or several.

The process of assembling GSM alarm with your own hands from the phone

GSM alarm with your own hands from the phone is created in the process of implementing several stages. The first of them produces a mobile phone. Initially, the shortcut key is selected and configured, which should be triggered when switching the sensor contacts. To do this, the keyboard is removed from the phone, and the conductors are soldered to the corresponding contact elements of the button.

Next, laying a wired highway from the phone to the location of the sensor. To ensure the functioning of the mobile phone, the recharging unit is connected to it, which is included in the household network 220 V. It is important that such a GSM signaling from a smartphone remains a long time workable even when the electricity is turned off - in this case, the power is carried out from the battery built into the phone.

The next step is to install the sensor on the doors or windows. One simple options is a magnetic sensor created by magnet and gercoon, which is in contact with a closed state. When opening the door, the magnet comes out of engagement with the German, which gives a signal to trigger the phone to call. Another sensor variant can be a simple mechanical system that will trigger when switching the contacts of the simple design switch.

The last step will be the hidden location of the sensors and the calling phone, as well as the aesthetic location of the conductors between the sensor and the mobile phone.

As follows from the above, GSM signaling from the phone is created quite simply and does not require any special knowledge and skills. At the same time, the financial costs for such a security system will be minimal, which will save several thousand rubles.

Modern security systems for cars are, of course, reliable and fairly effective, but additional protection in the form of GSM alarm will never be superfluous.

A small device is capable of warning the owner about an attempt to penetrate the car or, for example, in the garage where it is stored.

Principle of operation

Even the simplest GSM alarm, made by your own hands, gives many advantages:

• first, thanks to the mobile phone (the main element of the system), even in the case of the coal, the search for the car is significantly simplified;
• secondly, when trying to penetrate the car (in the garage), a message is sent to the phone programmed earlier. All that the owner is needed - in a timely manner and correctly respond to the danger signal;
• thirdly, the cost of all structural elements is minimal. Most often you can meet in the amount of up to 1-1.5 thousand rubles;
• fourth, with basic knowledge of electronics to collect the scheme and testing of the device, no more than a few hours go;
• fifth, the security system will work even in the absence of power - on the battery built into the phone. At the same time, battery life can reach several days.

Depending on the complexity of the circuit and motorist skills, GSM alarm can have such functionality:

• transmit messages about various malfunctions in the car;
• automatically block the operation of the main vehicle nodes;
• control the device in the unlimited range (the main thing is to be a mobile network);
• give different commands (for example, on the start of the engine warming).

Best options

If autonomous GSM alarm is what you need, then choose one of the options:

• buy a finished device in the store;

In the first case, you get a "black box" with a complete set of functions (it remains only to connect).

In the second - you must do everything yourself. It would seem that the option with the purchase of the already assembled alarm looks more preferably, but there is a big minus - a high price.

Therefore, if you have minimal skills in the field of electronics, a thousand-year and a half rubles in your pocket and a little free time, then it is better to do everything with your own hands. Especially since there is nothing difficult.

Option first

Materials will need: push-button phone (you can the cheapest but efficient and good battery), magnet, wires, germ and simple switch.

The assembly process itself is quite simple and consists of several simple stages:

• 1. Configure the call to the required number (for example, your mobile) to one of the buttons.

• 2. Remove the front panel of the mobile phone. This is necessary to access the device's contact group and connecting the wires.

But here there may be several options:

• - The function of reception and the discharge of the call is on one key. In this case, one wire is falling precisely to it, and the second - to the figure you are assigned to call the required subscriber;

• - If various keys are used under the function of the call and the aback, then it is necessary to use its wire to each of the three keys and use the three pin gear.

By the way, the advantage of this installation is that the phone will be disconnected along with the alarm, which allows to significantly save the battery capacity.

• 3. The last step is to install a magnet on the door (garage or car), as well as setting it up.

The further principle is very simple: when opening the door, the contacts are open, and the car owner gets an alarming message about the penetration into the car (garage) of the attacker.

In the Herrkeon circuit, a switch must be provided by which GSM alarm will be turned on or disconnected by the owner. At the same time, the location of this switch can be selected independently. The main thing is that the toggleler does not get into the eyes of attackers.

The advantage of such a system collected by their own hands is absolute autonomy. The main thing is that you need to think about - the question of constant recharging the battery.

The perfect option, if the charger can be connected to the on-board network of the car (in the case of installing protection in the garage - to the network 220 V through the adapter).

In this case, constant recharging of the phone will be ensured for a long period of time.

The disadvantage of such a system is a small delay in the work, because for a call to the subscriber should take some time.

If suddenly the attackers quickly went into the garage (got into the car) and closed the door, the chain will be open and the signal may not reach.

But this problem can be easily solved - it is enough to equip magnets with a special product, which will prevent re-opening of the chain.

There are many options for solving the problem. For example, one of the simplest is to install a magnet in such a way that with a quick opening of the door he shifted.

In this case, after closing the door, the circuit will not open immediately and the GSM alarm will make its work to the end.

Option 2.

Here the scheme is a bit more complicated, but the functionality is much rushing than in the previous case.

The device is triggered by simultaneously at least one entrance to the "minus" of the car. At the same time, there are four security entry in the alarm: for the driver's door, for all passenger doors, for the luggage compartment and, accordingly, the hood.

After turning on the power toggle, you must quickly exit the machine (not more than 25 seconds). If suddenly the driver did not have time, then the controlling LED will not light up until all the doors, the hood and the baggage compartment will not be closed. Once the conditions are executed, the alarm will switch to the security mode.

When trying to hijack and opening one of the doors, headlights are included, and if desired and turn signals.

To disable the alarm and remove all the locks, it is enough to turn off the toggle switch hidden in a special location.

In the case where the attacker immediately closed the door after the signaling is triggered, the blocking is not removed. At the same time, the car owner still gets an alarming bell.

After 40 seconds, the control unit polls all the systems and in the absence of successive sensors will switch to standard security mode. If, when checking, the opening of one of the doors is confirmed, the device goes into an alarm mode.

As in the previous case, to implement such a scheme you need to buy a mobile phone with the possibility of fast dialing. In this case, the call will be made until the subscriber at the other end of the "Wire" will press the reset button.

As a controller, you can use the ATMEL's product, although there are many analogues. His advantage - affordable price and reliability. In addition, such a controller can easily be found in the market in its city.

You can use any 12 to the device as a relay. The toggle switch for inclusion and shutdown alarm is also difficult to find labor. At the same time, it is advisable to hide him away from prying eyes. The more reliable there will be a place, the better.

The insertion of the table is performed in the signaling circuit from the onboard network.

Montaja rules

In the process of installing such a device, you must consider several simple recommendations:

• first, before starting work, examine the GSM alarm scheme and clearly follow all the recommendations. If you have already bought a ready-made device in the store, work only according to the instructions;
• secondly, to complete the installation and connecting the device, you may need to remove the instrument panel and dismantling the protective panels under the steering wheel;
• third, turn off the power (for this it is enough to remove the terminals from the battery);
• fourth, install the control unit (mobile phone) in close proximity to the fuses (this will significantly simplify the connection);
• fifth, mounted the alarms and other sensors (if provided for by your scheme);
• sixth, gently lay the wires so that they do not interfere with the process of driving a car;
• seventh, plug the device to the on-board network.

Secrets Connections

Since the installation of GSM, the alarm is on guard of your car, so each trifle matters. Moreover, there are a number of secrets of connectivity, which you need to know when installing:

1. The main task is to provide independent power to the device that can be turned off and on with the help of a hidden toggler (we have already spoken about it).
2. All wires must be laid in places where moisture never penetrates. This is necessary to avoid probable short circuit and system failure.
3. Try to mount the main unit, the sensors (if any) and the wires as possible from the heating, as well as the vibrating elements of the car. Otherwise, the likelihood of damage to the system and the failure of its failure is high.
4. The device control unit must be removed from the phone, automotive antenna and radio tape recorder to avoid interference.
5. Places where the wires are moving from the body to the doors or from the body to the hood, it is necessary to additionally strengthen with special rubberized tubes to avoid chances and damage.

Installation of such alarm is a responsible process, so the hurry is superfluous here. Each connector must be cleaned with a special responsibility and carefully, to avoid dirt and dust from entering it.

conclusions

Thus, GSM alarm is able to become your reliable assistant in ensuring the safety of your own car.

It remains only to decide on priorities - make a device yourself (choosing one of the options) or buy an already ready-made system. But here much depends on the tasks set.

If alarm is already installed in the machine and an additional device is needed, then why not do everything with your own hands.

If the security system on the GSM principle is the only one, then it is better to mount more functional protection or buy a finished device. In any case, to solve you.

Modern life is unthinkable without security alarms. They are the most diverse - for example, fireing or protecting from hacking, differ depending on the installation site and, accordingly, the required functional. The country house also needs to protect and the optimal option for it is GSM alarm.

At this time, there are a lot of companies providing services for installing alarms, including GSM technology. At first, you may seem that such systems are extremely complex, but in reality it is not. The main thing is to understand several important nuances, after which you can make alarm by your own without resorting to assistance. It will cost many times cheaper, moreover, further maintenance of the security system will depend exclusively from you. In other words, you yourself will conduct preventive measures and troubleshoot.

Despite the fact that GSM alarms are installed mainly in the garages, they can be successfully used to protect the house. The simplest security system described in this article is capable of solving many problems, as well as add confidence in the preservation of their property.

For the personnel of the alarm, you will need:

• soldering iron and skill to work with it;
• set of wires;
• nippers;
• old mobile phone (necessarily on buttons - modern sensory models do not fit);
• color switch;
• stationery knife;
• insulating tape;
• a small magnet;
• super glue;
• copper and telephone wire;
• pair of metal clips;
• multimeter;
• minimal knowledge in the field of radio engineering.

After familiarizing with the list of necessary tools / Mat Erials, we conclude: the cost of homemade alarm is low. If you want to clearly follow the instructions below, the security system will last long enough.

Alarm for home with your own hands - Installation work

In essence, GSM alarm is an improved mobile phone. She will call your (or any other) number if someone penetrates into your absence into the house.

The idea is as follows: you need to ensure that the phone itself calls the last number from it at the moment when the entrance door opens. This phone must always be in charge and lie in some box near the outlet. As soon as the door open, invisible contacts installed on the canopy will be closed and thereby provoke a call from a mobile phone - you will be called.

Note! For signaling you can use the cheapest phone. The notorious Nokia 1100 is ideal for this.

First stage. To begin with, cut off from metal clips two pieces of about 1.5 cm long - it will be hinged contacts on the door. Then take the telephone wire, remove the insulation and dissolve on a pair of internal wires. Sold down the ends of each of them to the contact of AM. Contacts themselves Lock on the door with the superclone - one on a fixed mounted loop, the second on the movable.

Position the contacts so that they get closed when half open doors. Other wiring ends are attached to a multimeter, after which they ring them in a closed state (with an open door) in order to check the chain.

Second phase. Swipe the wires to the place where the device will be, hiding them under the plinth.

Third stage. Next, start the phone. It should be with a sim card, replenished balance, disconnected alerts (such as an alarm clock, incoming call and so on.). Also, it must have the last number to which the call will be made in case of hacking.

Disassemble the phone, remove the rear panel and remove the battery. Then remove the front panel with buttons and gasket. You are only interested in the front part, not the back - on it after removing the keyboard you will see the tracks of the contacts. Select from them that leads to the call button (define it by the location of Yu, since it is visually not different from other contacts). Fix the tape from the semicircular contact one of the copper wires, the second attach to the internal one.

Note! It is very important that at the same time the outer contour of the semicircular form did not close.

Also ensure that the tape does not overlap contact to the call button.

Fourth stage. When everything is ready, install the battery (you can throw it away - it is not needed), using the same isolate to mount (it is important to be blue). After that, turn on the phone. Perhaps it will seem to you impossible, because there is no keyboard anymore, but there is an email to the rescue: take a metal paper clip, straighten, making a certain semblance of a tweezers, and close the contacts under the right button to complete the call.

After the screen greeted you and the phone is completely loaded, try to close the copper wires installed at the previous stage. If everything is done correctly, the phone will type the last dialed number. But if this did not happen, you will have to check all contacts under the button and repeat the procedure.

Fifth stage. It remains only to install the phone in the place intended for it. Connect to copper wires that come from the phone, contacts leading from door canopies. Then connect the charger and insert it into the outlet. All, GSM alarm is successfully installed.

Note! For convenience you can install on one of the long wires toggle switch to turn on / off the alarm.

As mentioned, usually such alarm is installed at the front door. We advise you to attach contacts to the inner door between the rooms (it will always be closed before going out). If the attacker penetrates into the house, then in any case will move from one room to another and, therefore, will open the "alarming" door. After that, the subscriber known to you will call you, and you will be informed about hacking.

Having certain knowledge in radio engineering, such a security system can be improved so that it looks more presentable, and also make an alarm on it for a car.

An important point of which you need to know

If the attacker penetrates the house with such alarm, then it can quickly detect it and turn off. A self-made security system requires a certain time to trigger (often a few seconds), that is, to install communication with your mobile phone.

If the door closes quickly, the call will be reset. Remember this.

As a conclusion

The indisputable advantage of such homemade alarm can be considered non-volatile. You only need to charge a telephone battery in a timely manner using a standard power supply. It is advisable to embed this block into the power supply at all so that the phone is fed from the battery exclusively when interruptions with light.

We also note that today it is more expedient to put a video surveillance system. It has a lot of advantages, but it is very expensive, therefore, in most cases, people are bypassed by the usual GSM signaling.

The other day the old acquaintance turned to us. He lives in a private house and a couple of times to him tried to go without inviting unknown personality. There is a need for an alarm installation. To put the house on the console was too expensive. The optimal solution seemed to simply notify the owner by calling the mobile phone when the movement sensors were worked.

At first we visited local shops selling security alarms. However, prices for the most budget GSM devices have bitten - from 5 kilubles for the block. Therefore, we decided to weld GSM signaling with our own hands.

In stock We had a mobile phone Nokia 1600 with the screen backlight (chronic fault after bathing in this model) and 12 volt power supply. You only had to buy the most inexpensive volumetric Astra detectors (200 rubles each), a 12 volt battery with a capacity of 7.2 Ah (another 400 rubles), several meters of a four-tier mounting wire (~ 50 rubles) and a cyclic daily timer (250 rubles).

We selected the next logic of the alarm operation. When machining, at least one of the volumes begins to "click on" a call send button (green tube on the machine). On Nokia phones, the first click pulls on the screen the last dialed number, the second makes a call to this number. Subsequent pressing does not affect the function of the phone.

To implement the conceived algorithm, a simple scheme was collected on domestic logic.

This is the simplest impulse generator. With the indicated rates R1 and C1, the pulse frequency is approximately 1 Hz. The load of the generator is the optocoupler. We pulled it out of the computer power supply. The right side of the optocouple is connected to the contacts of the mobile phone call sending button. For this, the phone is revealed, the button is removed, the button contactor is removed, and thin wires are falling to the contacts.

In parallel, the clock button is enabled. It is needed to configure the system.

The volumes we selected in the normal state (no anxiety) have a relay with normally closed contacts that break the chain when the instrument is worked out. We used this to control the route generator.

The volume output is turned on in parallel to the optocoupler and, in the mode of protection, simply cuts the output of the generator to the ground. The current-limiting resistor becomes the only load of the generator. When the circuit is blurred, the current goes through the optocouple and the system begins to work.

Now about setting up a mobile phone. Reduction keyboard need to turn off. All calls for all calls to clean, set the forwarding of all voice calls to the MCA number - Missing Call Alerting (service "called you"). This is important, otherwise the situation is not excluded when, instead of a call to the owner's phone, the system will respond to a random incoming call. Then you need to dial the owner number and press the invoked call button. If everything is assembled correctly, the owner's telephone rang.

Our volumetric pipelines support only one job logic: after work, the alarm loop opens for one minute. During the same time, the phone will try to reach the owner. It is impossible to get out of it.

The outputs of the relay of several volumes should be included in the signaling loop sequentially. Then when worked out any of them, there will be anxiety in the chain. The number of volumes connected in this way is limited only by the resistance of the wire.

Energy generator and volumes are obtained from 12 volt power supply. The phone works from its own battery, only once a day the timer is turned on (per hour and a half, it is selected experimentally), which through the standard charger recharges the phone.
Staging and removing the device with protection is carried out by a disguised switch inside the controlled room. Thus, the "Study of alarm" mode is performed. This is convenient, the performance of the system is checked every time before turning on.

An extended version of such alarm has a power reserve due to the battery. In our case, a 12-volt battery is connected parallel to the main nutrition. The power supply is turned through a diode. It prevents the battery discharge through the power supply when it is de-energized.

Thus, in the presence of an old phone and direct hands, you can get a suitable GSM detector worth less than a thousand rubles. Our system works for a friend without complaints, does not give false alarms. For convenience, he even put a separate ringtone in the form of a siren for an incoming call from the system.