JIMI Electronic

Electronic tracking device  designed for outdoor use always assume a straight line as the route between two points. That might be convenient for airplanes and boats, but it doesn’t take into account cliffs, rivers, streams, fences, and other obstacles on land. GPS receivers designed for automobile navigation are a bit smarter, having built-in databases of road information that’s used in suggesting and measuring appropriate routes from Point A to Point B. Depending on the GPS receiver model, other waypoint-related information that you may be able to display includes  Travel time : The amount of time it will take you to reach the waypoint based on your current speed.   Compass : A picture of a compass that displays the waypoint direction heading.   Directional arrow : An arrow that points in the correct direction that you should be heading.   Navigational hints : A picture of a road that moves as you travel. If the road is centered onscreen, your destina...

The Global Positioning System (GPS) is becoming, and promises to remain for some time, one of the most important geodetic measurement systems. The contributions to date of GPS geodesy are truly revolutionary, encompassing such diverse applications as measurements of crustal deformation, precise positioning of mobile platforms and monitoring of ionospheric conditions. When one considers the accuracy obtainable with GPS and the relatively low cost for acquiring this technology, the full impact of GPS over the next decade is indeed very difficult to estimate. It is our impression that four years later it is still difficult to estimate the full impact of the GPS in all mentioned areas. Meanwhile the  portable tracker  became fully operational; at times there were even more than the 24 planned satellites (due to some long-lasting Block-I satellites). We have also seen that AntiSpoofing (AS) had little effect on the high accuracy interferometric applications of the GPS if modem rec...

GPS is a Global Positioning System based on satellite technology. The fundamental technique of GPS is to measure the ranges between the receiver and a few simultaneously observed satellites. The positions of the satellites are forecasted and broadcasted along with the GPS signal to the user. Through several known positions (of the satellites) and the measured distances between the receiver and the satellites, the position of the receiver can be determined. The position change, which can be also determined, is then the velocity of the receiver. The most important applications of the GPS are positioning and navigating. Through the developments of a few decades,  GPS tracker  is now even known by school children. GPS has been very widely applied in several areas, such as air, sea and land navigation, low earth orbit (LEO) satellite orbit determination, static and kinematic positioning, flight-state monitoring, as well as surveying, etc.  electronic tracking devices ...

True navigation, which provides the user with detailed instructions on how to reach a specific destination, is one of the fastest-growing areas in intelligent vehicle technology. Navigation devices utilize map-matching and best-path algorithms, along with userdefined filtering, to allow the user to choose between the fastest or most direct route to a desired destination. Some systems even allow the user to indicate specific routes to be avoided. The map databases used all provide basic mapping information (streets, major landmarks, etc.), but can also include points of interest and/or helpful location information (restaurants, etc.), depending upon their level of detail and how often they are revised.   Autonomous navigation devices range from in-dash units that are small enough to fit into a 1-DIN slot, to multi-component systems with CD-ROM changers and large multi-plane colour displays. The price of these systems can vary from a few hundred dollars to several thousand doll...

You may have a pretty good idea of what Global Positioning System (GPS) is and how it works. In addition to knowing about the satellites, ground stations, and receivers, however, you should have a grasp of some important concepts before you start using a GPS receiver — things like coordinate systems, datums, waypoints, routes, and tracks. Even if you already own a GPS receiver and have used it for a while, this is still a good chapter to skim through because some of these basic concepts that I discuss end up being overlooked in user manuals or can get a bit fuzzy if you don’t use your GPS receiver on a regular basis. Read on while I help clarify some important terms and concepts (like datums and waypoints and routes) so you’ll be (pardon the pun) moving in the right direction.   Linking GPS, Maps, and Coordinate Systems   Some people think that after they have a  tracking device  , they really don’t need a map, especially if the receiver has built-in mapping...