The GPS module is a radio receiver designed to determine the geographic coordinates of the location of the receiving antenna at the current time based on the time delay data of the arrival of radio signals.
Many people often confuse such concepts as GPS and GPRS. GPRS technology is for mobile internet access, GPS (Global Positioning System) technology means satellite navigation system. The GPS receiver module does not transmit anything, it only receives data from satellites and determines its location by solving a mathematical problem. In order for the device to be able to determine its location (coordinates), it is required that the device sees at least four satellites. The coordinates will be more accurate, the more satellites the GPS module sees. The sensitivity of the receiver and the speed of operation are determined by the microcircuit used in the device. Speed refers to how quickly the device is able to determine the coordinates. Sensitivity refers to the ability of the receiver to determine the maximum number of satellites.
GPS-navigators can be divided into two types: professional, whichhave a high accuracy of determining the coordinates, and household. The first found application in the military sphere, in geodesy, cartography, but household ones can be found in almost any area of modern life. Professional devices are distinguished by high quality of manufacturing not only components, but also antennas, software, operating frequencies, increased energy reserve, and most importantly - price.
What is the GPS module for? First of all, these devices can be useful to motorists. After all, even in your hometown, you do not always know how to get to a particular place. GPS devices help not only to get to a given street, but also to accurately determine the required house number. Also, these devices can lay the best route to the specified address, avoiding traffic jams and roads with oncoming one-way traffic, as well as streets closed for repairs and emergency areas. A GPS navigator is also indispensable for traveling to unfamiliar places. It will help you quickly get to any city and any address you specify.
However, do not think that these devices are only needed by motorists. It can be indispensable for pedestrians, especially tourists. Thus, a GPS module for a tablet or mobile phone can help a traveler navigate in a foreign city, find any sights, shops, markets, and the like, and most importantly, help them get back to the hotel. And you don't have to, not knowing the language, pester passers-by to show you the right path.
Many outdoor enthusiasts, such as hunters, mushroom pickers, fishermen, often use GPS navigators: they help to get out of any slum and return to civilization again.
Also, a similar device helps to find stolen equipment. For example, a laptop GPS module can help determine the location of your device, which greatly helps in tracing stolen items.