Bug for tracking the location (GPS-tracker)

GPS navigation has entered our life firmly and somehow surprisingly fast. The cost of a simple navigator is slightly higher than the price of a good liquid compass, the set of functions, the information content of these two navigation devices and nothing to compare. And given that today 95 out of 100 phones come with a built-in GPS module, orienting the stars, crowns of trees and moss on the rocks will soon become about the same anachronism as the postman with the telegram in the bag.

On the other hand, unfortunately, the theft of cars and other property in our country is not uncommon. Unfortunately, sometimes people also fall out. For example, according to statistics, at least several hundred people do not return every year from "quiet hunting". This is especially true for people of advanced age. Many unpleasant incidents could be avoided using an ordinary GPS-bug to track the location.

How it works

Let us recall a little school geometry. This will help us understand how the bug works to track the location and in general the positioning system of the object on the surface of the Earth. Suppose we have a certain "X" point, the location of which must be calculated. We have the following data at our disposal:

• Distance from an unknown point to three others (T1, T2 and T3);
• The coordinates of these three points.

The desired position of the "X" point is easy to determine: it is enough to apply points with known coordinates to the scheme:

• Construct a circle with the center at point T1 and a radius equal to the distance from point T1 to the point "X";
• Do the same with the points T2 and T3;
• The intersection of the constructed circles will give the point "X".

And the tracking bug, as well as other GPS-devices, on this principle finds its location on the surface of the planet. Points with known coordinates are satellites of navigation systems. Data on their position in space in real time receives the GPS module of the device, and the duration of the passage from them the program calculates the distance to the spacecraft.

Positioning Systems

The pioneer of satellite navigation systems available to the mass consumer is the US GPS. The first devices were placed on ships and military equipment, then, gradually becoming cheaper and better, they reached personal cars and even cellular phones.

In addition to Americans, satellite navigation services are represented by our country, a united Europe and, of course, China. And if the first civil GPS devices worked, as a rule, only with the US satellites, the currently produced ones perfectly "see" our GLONASS, the European Galileo, and BeiDou, developed in the Celestial Empire.

How to use GPS-bug

GPS-beetle is a symbiosis of two systems:

• Devices for satellite positioning;
• Cellular communication on the GSM platform.

Each of the systems has its own function. The GPS module monitors its location in real time and converts the received data into geographical coordinates: latitude and longitude. The cellular communication unit, upon request, provides these coordinates to a third-party mobile device whose phone number is pre-entered into the memory of the bug. To do this, the tracking beetle is equipped with a SIM card slot.

Get coordinates on the smartphone with a bug (even such devices are called trackers) can be in several ways, depending on the device tracker or owner preferences. Most often, an empty SMS is simply sent to the SIM-card number of the bug, or a "blank" call is made. In response to the mobile device comes SMS with the coordinates of the beacon.

A more advanced way is to use special mobile applications. The method is somewhat more complicated, but the location of the object can be seen immediately on the interactive map. If necessary, all movements of the person or object, the carrier of the tracker, can be monitored online.

How to use GPS-bugs in the car

The beetle for tracking the car's location is equipped with a special antenna, which allows you to hide the device properly from prying eyes, but at the same time remain visible to the satellites of navigation systems. Also there is no usual lithium-ion battery, instead of it the tracker is connected to the on-board network of the car (or motorcycle). Mount beacon is best in places such that the hijacker either did not find it, or it would take an unnecessarily long time to dismantle it.

Sometimes the owners go for such a trick: they install a real lighthouse, which is well hidden, and the "dummy" is an old non-working module, but nevertheless with a SIM card and connected to the network. Beetle to track the location of the car on the phone is better equipped with a SIM-card with zero monthly fee and expensive calls.

If the grandfather mushroomer

A lot of troubles rescuers and anxiety relatives sometimes deliver the old - living in the countryside lovers of mushrooms and berries. Unfortunately, sometimes it is not possible to find the missing alive.

In this case, a pre-purchased bug to track a person's location will save relatives from the experience, the old man from stress, or even may be a rescue for him. After all, sometimes a lost person, even by phone, can not explain where he is.

Where are our children

Partly to protect themselves from unrest for children is also possible, using a bug to track the location. The child is difficult to force exactly all our instructions: which route to go home from school, how to behave, etc. Special trackers for children have additional functions, besides tracking the location. This is the possibility of remote listening, etc. These gadgets are released in the form of watch, keychains, other trinkets. A small size allows them to hide even in school clothes. However, it is worth remembering that the tracker is not a panacea. And the basis of child safety is proper education and training in safe behavior.