Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
Concept
Satellite navigation software
Summary
Satellite navigation software or GNSS navigation software usually falls into one of the following two categories:
Navigation with route calculation and directions from the software to the user of the route to take, based on a vector-based map, normally for motorized vehicles with some motorized forms added on as an afterthought.
Navigation tracking, often with a map "picture" in the background, but showing where you have been, and allowing "routes" to be preprogrammed, giving a line you can follow on the screen. This type can also be used for geocaching.
A track is a trace of somewhere that you have actually been (often called a "breadcrumb trail"). The GNSS unit (external or internal) periodically sends details of the location which are recorded by the software, either by taking a reading based on a set time interval, based on a set distance, based on a change in direction by more than a certain angle, or a combination of these. Each point is stored together with its date and time. The resulting track can be displayed as a series of the recorded points or a line connecting them.
Retracing your steps is a simple matter of following the track back to the source.
A route is a preset series of points that make up a set route to follow for your destination. Most software allows the route and the track to be displayed at the same time.
Waypoints are used to mark particular locations, typically used as markers along the "way" to somewhere. They are either key entered by users or downloaded from other sources, depending upon the sophistication of the device. Although not linked to tracks or routes, they can be used to simplify the construction of routes, by being able to be re-used. Frequently, waypoints serve a "safety" purpose, enabling a route to be taken around obstacles such as shallow water (marine navigation) or streams/cliffs/other hazards which may prevent a safe passage directly from point "A" to point "B".
GPS navigation device
Software can be used on a laptop computer with an attached GNSS receiver.
Official source
About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.