The areas of use of GPS navigators are determined, of course, by their functional purpose, loaded maps and built-in software. Despite the specifics of the application, many navigators can be successfully used on land, at sea, and in the car.
Areas of application for GPS navigators, cartographic support for GPS navigators.
We restrict our consideration only to the main areas of use of GPS navigators. Although there are a number of their non-standard applications. As an example, we point to the use of a GPS-navigator as a guide for the blind, for the automatic control of agricultural machines, for monitoring the location of children and animals, and some others. The main areas of application include the following.
Personal (individual) navigation
Surveying, construction, land management.
Exact time synchronization.
Monitoring systems for moving objects, security systems.
Scientific applications, monitoring of animal migrations, studying the movement of glaciers and tectonic plates.
Sports, training, time measurements, games, GPS-orienteering, geocaching.
Cartographic support for GPS navigators.
The comfort and visibility of using GPS navigators significantly increase if they provide a map display. It can be said without exaggeration that full navigation is generally impossible without maps, as well as without a GPS navigator. But in some cases we travel and do without both of them, guided by memory, intuition and essentially unknown to the seventh sense.
Therefore, do not unconditionally consider the availability of maps mandatory in your hands or on the screen of the GPS navigator. A number of GPS navigators have a base map and a world map recorded by the manufacturer in the memory of the navigator, which help the user navigate in a specific region. Due to the small scale and lack of cartographic details of the terrain and roads, the practical value of the basic world map is low.
According to the types of cartographic support, GPS navigators are divided into the following groups.
With a base of point features, it contains the name of major cities, rivers, and major highway numbers.
With the ability to download maps.
With removable media cards.
GPS navigators without maps.
Portable GPS navigators may not provide for the availability of built-in maps and their loading. Despite the lack of maps, GPS navigators of this group are effectively used. Perhaps you ask why? And you will be right if you are not familiar with the amazing ability of the navigator to display your current location on a screen page that is not very well named “Map”.
In fact, there is no map as such on the screen, the screen itself is almost empty, but invisibly all points on the screen correspond to certain geographical coordinates. As soon as the GPS navigator catches the satellites, the symbol of the current location will be displayed in the center of the screen. Also, the entire path from the start to the end point of the path is drawn on the screen, which allows the user to confidently navigate the terrain.
This elegant way of orientation and navigation is complemented by the ability to record the coordinates of individual points in it, whether it is the final point of travel (destination point) or a series of points that specify the future route. Using the GPS navigator, you can confidently control your path to any entered point.
The simplest application of a navigator without maps.
Going for mushrooms, remember the point where you left the car on the highway, and the device will take you to this point from everywhere. Another example is navigation in TracBack mode — returning to the path you have saved in your memory. Finally, with the help of such a device you can determine and mark your location on a paper map.
GPS navigators with a base of point objects.
Many cartographic objects, even those that do not have a local position, can be attributed to point features if you need only two coordinates and a conditional name for their characterization. Even some settlements that are not, in principle, them, can be entered into the database of point features. If there are a set of skillfully selected point objects in the GPS navigator, they can significantly facilitate navigation. Point features can be recorded in many navigators..
GPS navigators with the ability to download maps.
Such GPS navigators provide the user with the most interesting and voluminous cartographic database. Most often found in navigators is a built-in world map and a built-in road map of Europe (car atlas). To supplement and increase the detail of the base map in GPS navigators, the loading of maps is provided.
GPS navigators with maps on removable media.
In some GPS navigators, it is possible to use special removable memory cards with cards recorded on them. Having prepared several memory cards with cards, you can fully ensure travel even in a very large territory or water area. For use in a computer, you can independently prepare a raster map by scanning it from a printing paper map. However, some mapping functions and tasks may be lost..
Based on materials from the book All About GPS Navigators.
Naiman V.S., Samoilov A.E., Ilyin N.R., Sheinis A.I..