Nowadays, the navigation DVD is widely used in many modern cars. In general, the in car navigation DVD can be divided into two categories: (1) Non-autonomous navigation DVD. It is mainly use for aircraft, ships, automobiles and other transportation equipment compatible navigation, radio navigation, satellite navigation with ground or aerial equipment. In the military, it also has to finish the completion of the weapons delivery, reconnaissance, patrol and anti-submarine and rescue task. Car navigation DVD is the integration of their functionality. Running of the GPS navigator also need a car navigation system. Only have a GPS system is not enough, it is only able to receive the GPS satellite data to calculate the user's three-dimensional location, direction and velocity and time information, no path computing capacity. (2) Self-navigation DVD. This kind of navigation is mainly the car DVD navigation, and there are also aircraft or ship navigation, inertial navigation, Doppler navigation and celestial navigation. As for car navigation DVD, it can be divided into different navigation DVDs according to different car model, such as the toyota navigation dvd, Honda navigation DVD and Benz navigation DVD etc
Car Navigation DVD Features
Car navigation DVD has the function of GPS global satellite positioning system, so that you are aware of your exact location anywhere when driving a car. The automated voice navigation and the best path search function let the car navigation DVD allows you to shortcut all the way; audio and video playback, you can play movies, can listen to music at any time; Bluetooth hands free function, the blue tooth hands free speakerphone system is dialing directly through the multimedia system. Bluetooth cell phone can be placed anywhere in the car, during the driving process, dialogue is available by phone hands-free function, and thus enjoy a convenient speakerphone. Bluetooth wireless technology is the only truly wireless entertainment technology; support iPod access, there are a number of brands to support iPod access, the iPod Access let the car navigation DVD can sync iPod music better enjoy the music; radio function, you can listen to the broadcast anywhere and know the latest information at any time. In a word, the novel Toyota navigation DVD is much convenient than the common toyota dvd player.
Development of Car Navigation DVD Industry
GPS technology has accelerated the development of car navigation DVD. The car navigation DVD technology is a modern high-tech multidisciplinary crystalline, which combines satellite navigation with targeting technology, the GIS digital electronic map technology, intelligent urban traffic management technology, GSM dynamic navigation communications and other high-tech technique. Due to the practical, inexpensive features of DVD GPS (Global Positioning System) satellite global positioning system, and the feature that it can determine the position, velocity and time, so it has become one of today's fastest-growing wireless industries worldwide. The world authority studies have shown that in 2010 the world demand of navigation DVD equipped with the GPS DVD receiver make the sales on the market reach $ 3 billion, and by 2015, only the U.S. sales will reach 112.5 billion.
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