How to teach giving to send SMS? Control and management of remote sites

Can I protect an apartment or villa from hackers? Probably yes, if you surround them platoon machine gunners, mine fields and modern clock video surveillance system. But this protection does not always need those who can not keep for armored doors gold stocks, jewelry and other prohibitively acquired good.

Most people leave their home unattended, it is important to know is that in their absence nothing unforeseen has happened. The house stands on the site, windows and doors are intact, no strangers ... what do you need a quiet life?

It may come to the aid of a cellular network. It is not only voice or SMS, but also many other features that only get their own development. Mobile internet and payment services - specific examples of this emerging service. One of these functions - monitoring and managing remote sites through networks GSM. This means that using inexpensive equipment; it is possible to provide a set of security services to monitor settings, turning off the various devices and other events.

Leaving aside for a time an apartment or villa, you can control the disappearance of electricity, the internal volume, opening the doors, the integrity of the glass. If you have an event that the device will send SMS or make a call to the specified phone numbers. For each parameter corresponds to a specific sensor - motion, temperature, smoke, doors or any other. The sensors are connected to the main block of the system using wires or radio signals. The main block is called GSM-modem and is used to convert signals from sensors in simple and understandable to the owner of the messages transmitted over the mobile network.

Such a device is a simplified cell phone with his SIM card, a federal number, but without the keyboard and screen. Open it from the mains 220 volts and has a capacious battery , able to support the work without electricity for a long time. Upon request, the search engines mix GSM-alarm system, you can find detailed specifications of such equipment.

The system can be consulted on the status or alarm sensor specific code, and if it is equipped with a built-in microphone, simply call the number, you can listen to the noise environment in the room. Some devices let you connect your camera and send the selected number of pictures in MMS messages. If the system works in the network 3G, rather than be able to view photos and video.

The number of sensors connected to the GSM-modem, depending on the number of inputs for this model. Sensors can be very different: those that were mentioned earlier, flooding, humidity, gas leakage, shock, tilt, etc., the principle of which is based on disconnecting / closing the contact. In addition to inputs, in "advanced" system, there are output pins, which connect the necessary executive elements of lighting, heating or irrigation area. They can also be activated by using the cell phone.

Of course, the system is not without drawbacks. Like all phones, it can sometimes be unavailable from time to time there may be "hanging" and false positives, the account must be a certain amount of money. An attacker is able to block signaling generator noise or "jammers". But this is all extreme cases. Otherwise, there are more advantages.

Judge for yourself: there is no subscription fee, that connect and what to protect - you decide, takes up little space, requires virtually no maintenance, offline for a long time. Doubly mobile device, because in winter it can work in the country, and in summer - in an apartment or garage. The cost of the equipment in Russian shops starts from 6,000 rubles. Is there a similar analogues of security systems for such money?