Several General Positioning System (GPS) maps are already provided with your GPS device when you buy it. Because these maps are offered for free, there is an overhead in getting them. Indeed, these maps do not allow any tweaking in order to meet your specific needs. Another drawback of these built-in maps is their lack of knowledge about your given destination. For instance, let assume you want to travel to Philippines; it is obvious that you will appreciate details about this location beforehand. If your device was purchased in Brazil, you will be very lucky if it has any knowledge about Philippines. Therefore this GPS map cannot act as a travel aid.
Many GPS devices are used as travelling guides for a trip. Therefore GPS devices have superseded our old map artifacts. You may be wondering how useful a GPS device is. It is obvious that having detailed information about your trip in advanced will only make it more enjoyable, faster, safer and reduce any risks during your trip.
Although there are several programs that can be purchased to install new GPS maps on your device, there are also several free programs that can be used for the same purpose. In order to use these, some software prerequisites should be installed at first. These include the cables of your device. You do not to worry about it because they are included with your device when you purchase it.
They are also many websites that can help you to design our own GPS maps. By customizing your maps, you will be able to pinpoint specific locations you are fond of. These include restaurants, bars, night clubs, schools and so forth. You may add traffic reports in your GPS maps in order to avoid traffic jam during your journey.
Another outstanding benefit of GPS systems is their ability to record several maps. For instance, if you are traveling a lot to the same place, your GPS device can save all your personal information once so that the trip you will not be asked to enter your personal details and preferences.
When you have a GPS system, you may find it easier to have many maps about your trips. This will make your trip very enjoyable. You should therefore spend some time looking at pre-installed maps as well as other amazing features of your system.
Briefly speaking, GPS maps offer you the unique opportunity you explore your final destination without heading there. This is very interesting because it is sometimes recommended to glance at a country before formally deciding to go there. Some GPS maps provide outstanding features such as an unlimited online access to view, print, save aerial pictures. Some of them also come with bunch of programs allowing you to personalize them, add texts, graphics, compute GPS coordinates, upload your GPS coordinates and plot them atop of your maps. Updating new GPS maps to your device can be a very daunting experience. There are available in many shopping centers not for free. If you are looking for free stuff, you should definitely look on the internet as several, interesting maps are available.
By: John B Mayall
Posts Tagged ‘Positioning System’
Download Free Maps GPS – Enhancing Your GPS Device With Additional GPS Maps
January 28th, 2010GPS System Tracking – Applications of GPS Tracking System
January 12th, 2010
The General Positioning System (GPS) tracking system is the latest breakthrough of the technology aiming at improving people’s lives. The GPS tracking system is reported to be used as a travel guide and as a tracking device of vehicles. No matter its application, GPS devices are good traveling companions.
The actual process of GPS tracking system is straightforward. In short, there are exactly 27 satellites rolling around the center of the Earth. Out of them, 24 are used by the GPS technology and the remaining ones are used for storage purposes. A GPS receiver installed in your car emits a signal to these satellites. Four available satellites will be used to find out your exact position. The mathematical tenet involves in this computing process is called trilateration. It can be achieved in either two dimensions or three dimensions.
Adverse weather conditions can affect the accuracy of the position. This issue is still to be addressed by GPS vendors as they are struggling to tweak their devices as a way around this problem.
Applications of GPS devices are twofold: the first one being as travelling guide as you can set your destination and the receiver will work out your location. It will also tell the best trajectory to reach your destination. It should be noted that some devices are able to talk as well. The GPS technology is also reported to be used in the military industry as it was first created for such purposes.
Another application of GPS devices is for tracking purposes. For instance a car company may decide to install GPS device in their cars in order to record their position all over the time. This can help them improving their delivery times and also increase their efficiency. An employer also can make use of this device to make sure that his employees are not abusing company car privileges.
Private investigators also make use of GPS tracking devices in order to keep track of cheating wives. Law enforcement also makes use of GPS devices to locate people who steal cars. Recent GPS devices are also able to report a driver’s habits therefore deciding if the driver is responsible enough to carry on.
The GPS tracking system is also a perfect way around home construction site thefts. Indeed, recent news from the Tennessee reveals that GPS tracking devices have helped identify a rash of construction site thefts where many thieves were used to nicking home appliances. A Tennessee police spokesman later on claims that these hard to break burglaries could be tracked down in less than 24 hours with suitable GPS tracking devices.
Still in the US, it is well known that some school buses are equipped with GPS tracking devices for emergency response purposes. Indeed, school buses equipped with the GPS tracking devices can be used to shuttle emergency responders such as fire fighters, and evacuate those in need, including nursing home residents.
In summary, GPS device applications are growing more and more over the time. There are mainly used for military and civilian purposes as we described in previous sections. It is nowadays commonplace to see GPS devices almost everywhere as we saw in the previous sections.
By: John B Mayall
What is GPS Used For Today and How Does a GPS Receiver Work?
December 2nd, 2009
When you hear about General Positioning System (GPS) system, you should first consider the GPS receiver. It is the part of the device responsible of processing the signal sent by the satellite in the space to find out your actual location. The receiver is usually placed on the dashboard of your car or underneath it. It renders on a dedicated output device your screen your destination.
The entire GPS is a constellation of about 27 satellites rolling around the center of the Earth at a steady speed. Amongst these satellites, 24 of them are responsible of processing signals emitted by the receiver and the remaining satellites are used for storage purposes on case of an unplanned event. The GPS receiver is responsible of hooking up with satellites used for storage purposes and working out its position from that satellite by computing their distance. The mathematical tenet used for this purpose is named trilateration.
Trilateration can be achieved in two dimensions and also in three dimensions. The rationale of this mathematical principle is to work out a triangle where you are located at the center of it. As soon as the GPS receiver emits its position and makes a connection with other satellites, it immediately works out three nearest points and computes your position.
Three types of GPS receivers can be noticed: those which can be installed in a car, lightweight and mobile GPS receivers and tracking GPS receivers. It is obvious that portable receivers are a huge boon for outdoor activities.
Finally, it is good to know that the actual process of GPS receivers is a little bit more intricate than what was described in previous sections. However, throughout this article, although the main objective was to give a broad overview how they work in theory the next paragraph will delve into advanced details about GPS computations.
From previous sections, we learned that the GPS receiver computes its distance to the nearest available satellites in space by noticing the time spent by the emission of a given signal from the receiver to the satellite. There are another category of GPS receivers that you have not mentioned throughout this article. In order to overcome the lack of precision of the traditional GPS receiver, differential GPS receivers were born. Their rationale is to estimate the level of GPS errors at a stationary receiver station with a location that was already computed before. Since the Differential GPS hardware at the station is already aware of its own location, it can work out its receiver’s level of errors in a straightforward way. The station then broadcasts a radio signal to all Differential GPS-equipped receivers in the nearby area, providing signal correction information for that area. In general, accessing this correction information makes Differential GPS receivers much more correct and precise than traditional GPS receivers.
The most essential function of a GPS receiver is to pick up the transmissions of at least four available satellites and combine the information in those transmissions with information in an electronic almanac, all in order to figure out the receiver’s position on Earth.
By: John B Mayall
