Posts

Showing posts with the label GPS navigator

GPS: Information Provider or Controller?

Image
A GPS receiver is one of the most accurate clocks in the world, if it has continual access to the satellites. The forte of a clock in a  tracking device  is short-term accuracy, not long-term consistency. People who really want to know exactly what time it is can set up a base station over a known point and analyze GPS signals for time instead of position. GPS time does differ from UTC time by an integer number of seconds, less than 20 for the near future. There are many applications for which coordinated time is vital. Examples: making the telephone system, the banking system, and the Internet, on which the World Wide Web is based, run smoothly. There will be an increasing number of applications in which GPS signals control equipment directly, rather than going through a human “middle-man.” In such joint GPS/GIS uses as fertilizer or pesticide application, the automated system may steer the tractor while the farmer rides along simply for reasons of safety. Carving out ro...

The value of GPS technology to Autonomous navigation systems

Image
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...

JC900 3G Android GPS Navigation Rearview Mirror DVR

Image
The DVR is rapidly evolving far beyond its original, and quite limited, role as a time-shifting device. The DVR will become a more multifaceted product, one that can conveniently access and store both broadcast and Internet Web media. Very soon, endusers will gather, sort, and access videos, photos, music, podcasts, and RSS feeds.1 And, with the intelligence available in the next generation of DVRs, connections between various content choices will be recognizable, such that meaningful recommendations as to related content and choices amongst all enduser media will become the enduser’s favorite feature—a trusted friend, of sorts. Best of all, it will all be readily accessible anywhere within the home and, when the enduser is out and about, via the Net. JC900, As a star model for Jimi Electronic, JC600 ( rear view mirror with gps ) has enjoyed a high popularity since its launch. To cater for different niches in a variety of different national markets, Jimi today announces its brother ...

Coastal Navigation Using GPS For Sail and Power

Image
We are living in an age where a single idea can change traditional methods, transorm whole industries overnight, and open the door to possibilities that were beyond our dreams only a short time ago. Such is the case with the Global Positioning Sytem (GPS). GPS has transformed navigation. Today, with an inexpensive little black box, in just a few seconds, you can determine your exact positon on the earth is surface to within 35 feet or less. Sailors who navigated the seas over the centuries with only a few mechanical instruments and some crude charts would have perceived GPS as nothing less than a miracle. The tedious calculations associated with navigation are now reduced to the press of a button - and all of this power is available to every boat operator. Currently, many boat operators are switching to GPS navigation. The available GPS systems range from large integrated setups costing in the thousands of dollars down to a simple handeld set for only a few hundred dollars. In Cha...