Description and principle of operation of the satellite anti-theft system for a car

Every car owner thinks about the safety of his car, especially if it is an expensive and popular model. No one is immune from theft, but you can reduce its likelihood by installing a modern alarm system. As a rule, criminals do not risk stealing a well-protected vehicle. One of the most reliable security systems is satellite alarm, which will be discussed below.

What is satellite alarm

Satellite alarm not only notifies the owner of a burglary and theft attempt, but also allows you to locate the car anywhere in the network coverage. More expensive models can cover the whole world, so you can find a car anywhere. The device can work autonomously for quite a long time. Even when the battery is disconnected, an alarm signal and car location data will be sent.

Modern systems often have additional features such as:

• ICE and steering wheel blocking;
• immobilizer;
• door lock and others.

The owner can turn off the engine from a distance if necessary.

Security system device

Although different satellite alarms differ from each other, they have a similar configuration, principle of operation and design. Cost and capabilities largely depend on additional features.

The device itself is a small plastic box with a battery and electronic filling inside. The battery charge lasts on average for a week of autonomous work. The GPS tracker can work for several months. The system periodically sends a signal about its location. In normal mode, the device is powered by a battery.

Also inside are various microcircuits and a GPS beacon. The unit receives information from tilt, pressure and motion sensors. Any change in the state inside the passenger compartment during arming is triggered.

Many satellite car alarms are paired with an immobilizer, if the standard one is not installed. It is convenient for the driver to control the alarm and door locking from one key fob. If an unauthorized person tries to start the car, then the engine blocking and an alarm signal will immediately work.

Principle of operation

Now let's look at the principle of operation of the alarm after arming the car.

Sensors monitor various parameters: changes in tire pressure, the appearance of extraneous movement in the cabin, recording shocks. There are sensors that monitor movement around the car within a certain radius.

If there is any change, then the signal from the sensor is sent to the alarm control unit, which then processes the information. The unit itself is hidden in the car, and an attempt to dismantle it will also lead to an alarm.

Then a signal about an attempt to steal a car is transmitted to the dispatching console of a security organization or traffic police. The GPS tracker transmits information about the location of the car.

A text message is also sent to the car owner. The dispatcher calls the car owner to confirm the theft.

When purchasing an alarm, the buyer signs a contract in which he indicates several contacts of relatives or close friends for emergency communication. If the owner does not answer, then the dispatcher calls these numbers.

Types of satellite alarms

Satellite alarms can be divided into the following categories:

1. Paging... This is the most affordable, and therefore the most common type of car alarm. The capabilities of the system are not the greatest, but it is able to transmit the location of the stolen car and inform about its condition.

2. GPS systems... Alarms with GPS monitoring are of higher quality and more expensive systems. It can be used to track the location of the car at any time, and the system can also have additional functions such as engine and fuel management, door and steering lock.

3. Feedback (duplicate)... This type of satellite signaling is more often installed on premium cars, as it has a high cost. These systems are very reliable. As a rule, redundant alarms have several degrees of protection. Disabling or enabling the system occurs through the car owner's key fob or through the dispatcher. Even if the key fob is lost, the driver can block access to the car from a distance by calling the dispatcher.

Advantages and disadvantages

Even the most reliable systems have their drawbacks and flaws. These flaws are used by the hijackers. In budget models, the control unit of the security system contains a regular SIM card of a telecom operator. The range is limited by the coverage area of ​​the mobile network. Even if the hijackers fail to locate the beacon, they can jam its signal using special devices (jammers).

Thus, the disadvantages of satellite signaling include the following:

• high cost (the price for some models can go up to 100 rubles);
• criminals can intercept the code signal using various repeaters, code grabbers, jammers and scanners;
• the coverage area is limited by the network coverage area;
• the car must have a “Multi-Lock” locking system;
• if the key fob is lost, it will be impossible to get into the salon and start the car.

But satellite alarms also have their own advantages, of which there are many:

• more expensive systems have more coverage, including other countries. Even while abroad, the owner can be completely protected;
• it is almost impossible to crack the duplicate code signal, a dialogue of the "friend or foe" type takes place between the key and the control unit;
• the owner receives information about the location of his car;
• many systems notify the owner covertly, without creating noise, criminals may not even be aware of the tracking;
• in addition to car alarms, additional services such as Anti-Hi-Jack, engine blocking, "Service" and "Transportation" modes, battery discharge warning, an Internet application and much more are provided. The set of additional services depends on the configuration.

Main producers

At the moment, there are many models of satellite car alarms on the market from different manufacturers. They differ in price and function. Below is a list of the most popular and reliable car security systems that many motorists choose.

1. Arkan Satellite... This system is distinguished by the fact that it has a special satellite communication channel, as well as a Satellite module. It is almost impossible to hack the protection complex. There are no analogues of such systems in the world.

Arkan advantages:

• hidden installation;
• additional functions (blocking the engine, doors, etc.);
• works via satellite and radio communications;
• acceptable price.

2. Emperor Satellite... Caesar signaling is based on a two-way communication channel that is well protected. The position and coordinates of the vehicle are tracked around the clock and online. The dispatch service receives a notification within 40 seconds after the hijacking, and then notifies the owner.

3. Pandora... One of the most famous and affordable satellite alarms on the market. The device provides various services at an affordable price.

Among the advantages of Pandora are the following:

• innovative protection system;
• high GPS accuracy;
• autonomous beacon and tracking mode;
• control via app and SMS;
• acoustic direction finding.

4. Echelon... Many people choose Echelon for its low cost and reliable performance. Works over encrypted communication channels, consumes very little energy, mobile communication. Additionally, you can start and stop the engine from a distance, help in road accidents and evacuation.

5. Cobra... High-quality, inexpensive and functional car alarm. It features a large supply of battery life, good protection, and an alarm button. The system also notifies about attempts to muffle the signal, defines alarm zones and much more.

6. Grifon. Also affordable and high quality car alarms. Has a built-in GSM / GPS module and an engine blocker, works on dialogue coding. You can control the equipment through a mobile application, has a backup power source with a duration of up to 12 months. The griffin can detect jammers, there is a Car Monitoring option.

Other brands include Starline, Barrier, Autolocator.

Whether or not installing a satellite alarm is an individual matter, but if the car is among the frequently stolen or premium cars, then you should take care of its safety. Such security systems will reliably protect the car from theft. You can buy such a device at any service store. Also, many insurance companies provide an impressive discount when using satellite security systems.