A GPS tracker is a device with a GPS module that allows you to determine the location on the global satellite system with an accuracy of +/- 1 meter. There are trackers both online and offline. The main difference is that online trackers can transmit information to the server in real time, but require a data transmission channel via GPRS, Wi-Fi or a radio channel. The last two data transmission channels in Ukraine were not widely used. Offline GPS trackers are also called GPS loggers , because they store all the information in their memory, and transferring it to a computer requires disassembling the device and connecting it to a computer.
Purpose and use
Today there are personal GPS trackers , car GPS trackers and Android GPS trackers .
Personal GPS trackers are distinguished by their small size and can be used to monitor the movement of children, elderly people, sales representatives, cargo or animals. They are able to transmit information about their location to the server in real time. Wearable trackers can have an SOS button, a microphone, and there are also models with the ability to dial up to 4 preset phone numbers.
Car GPS trackers are distinguished by a wide range of capabilities and functionality. There are both basic models that allow you to control only the location, route, speed and direction of movement, and trackers with more advanced functionality, which makes them ideal for various needs.
Android GPS trackers can be installed on any smartphone or tablet with GPS and GSM modules, turning the mobile device into a full-fledged personal GPS tracker.
Functionality
GPS trackers installed on vehicles require wider functionality than personal ones. It is very important to use fuel control sensors for trucks and special vehicles. Control of engine revolutions allows you to keep track of the driver's driving style. For refrigerators, it will be relevant to use temperature sensors and record the operation of the refrigerator. On modern vehicles, it is possible to receive even more parameters from the on-board computer.
Before buying a GPS tracker , we recommend that you familiarize yourself with its capabilities in more detail. When monitoring the mileage of the vehicle, it is extremely important that the tracker repeats the trajectory of the ego's movement as accurately as possible. For clarity, look at the following images:
From the image on the right, it is easy to guess that such trackers allow you to take into account the mileage of the vehicle with high accuracy . High-precision GPS trackers allow you to keep track of vehicle mileage with an accuracy of no worse than 99%. For example, models AT-68, AT-10 lite, AT-10 Pro, AT-20 OBD not only perfectly repeat the trajectory of the car, but also take into account descents and ascents when driving on a rough road.
We would like to draw your attention to the fact that there are situations when the vehicle is parked in one place, and the GPS tracker shows that it has traveled 5, 10 or even 20 kilometers per day without leaving the garage.
This phenomenon is called false emissions from the GPS tracker . It occurs due to the fact that some GPS trackers are not equipped with an accelerometer and cannot correctly filter the signal during parking. The signal from the satellite navigation system has the property of being reflected from various objects, such as buildings, land, mountains or metal structures, which leads to inaccuracies.