Nowadays, many mobile phones on the market have GPS functions. How to choose a better GPS navigation mobile phone is also a problem that many friends who want to buy mobile phones.
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First of all, we start from the definition of GPS navigation mobile phone to analyze, what is a GPS navigation mobile phone? Simply put, the GPS navigation mobile phone is a satellite navigation mobile phone. Many friends will ask again. Some mobile phones now have the function of mobile phone electronic maps. The GPS function is not the same. This is not true. The difference between a GPS navigation phone and a mobile phone electronic map is that it tells you where you are on the map, where you are going, and where you want to go, and can choose the best route between your location and destination. And in the process of walking you will give you the corresponding prompt is to turn left or right or straight forward, is to indicate the direction and route of walking, this is the function of navigation. The simple point is to combine the electronic map to increase the availability of electronic maps.
GPS navigation principle In fact, we have said many times, I believe many of my friends are more clear, for some of the initial contact with GPS navigation mobile phone friends have a certain concept, Xiaobian cumbersome to talk about the principle of GPS navigation mobile phone. The GPS mobile phone consists of a GPS module, navigation software, and GSM communication module. You need a combination of these features to get a GPS navigation phone, the three are indispensable. Let's talk about the functions that the three modules can implement.
(a) The GPS module, as its name implies, requires GPS to perform data acquisition such as search and tracking of GPS satellites and positioning speed.
(b) Navigation software map: The GPS module collects information such as the location information location speed, and by continuously refreshing the electronic map, our location on the map shows the continuous motion change (that is, the real-time fixed point required for navigation). The navigation software also needs to have a path-guided calculation function. According to our needs, we plan an optimal walking route to the destination, and use the prompt function to guide us to the destination.
(c) GSM communication module: The mobile phone communication function processes the collected GPS data according to the mobile phone function and uploads the specified website.
Due to the development of GPS and its application in daily life, many mobile phone manufacturers have taken a fancy to this market, thus forming a GPS navigation mobile phone service that exceeds the huge industry chain of traditional value-added services, and is operated by mobile operators. System equipment providers, terminal manufacturers, GIS developers, application providers, middleware providers and other links, comprehensive use of mobile communications, satellite navigation, Internet, geographic information systems, integrated information services and other aspects of technology And applications are the product of the convergence and integration of multiple industries and multiple technologies. GPS mobile phone services require continuous and huge investment, especially in network upgrades and electronic maps. However, because of this combination, the development of GPS navigation mobile phones is subject to certain constraints. From the various factors such as the price of the mobile phone itself and the tariff of GPS, many friends feel that the GPS navigation mobile phone is still beyond reach.
If some friends want to buy a GPS navigation mobile phone, then you should carefully analyze the considerations for purchasing a GPS navigation mobile phone. The GPS navigation mobile phone means that the mobile phone has both a general communication function and a navigation function. First of all, the classification of navigation mobile phones on the market nowadays, navigation mobile phones are also divided into two categories, one is the real GPS navigation through satellites in space, the error is 3-5 meters; the other is rough through the base station and the network. The navigation, called A-GPS, does not have the exact accuracy of GPS navigation through satellites, with a typical positioning error of 100 meters.
Nowadays, there are many mobile phones with navigation functions. The key to purchasing navigation mobile phones is to look at the following points:
(1), the size of the screen of the mobile phone, the suggestion is that the larger the size of the screen of the mobile phone, the better, because the screen is small, can not be clearly seen, resulting in inconvenient use;
(2), the reminder function of the electronic dog function monitoring system, it can remind you how many meters in front of the speed monitor when the vehicle is traveling, what is the speed limit, you can also prompt you to have a camera in front, do not smash red light, etc. A reminder like this is very practical.
(3) Whether the map can be updated in time, the road will change every year, so the map of the navigation in the mobile phone has to be changed, otherwise the map is out of date and it is inconvenient to use.
(4) As we said before, GPS navigation mobile phones are divided into two types. When purchasing, it is determined whether it is a GPS mobile phone or an A-GPS mobile phone. The accuracy of the GPS mobile phone is high, and the accuracy of the A-GPS mobile phone is slightly lower. The actual application itself decides which type of phone to buy;
(5) Confirm whether the mobile navigation will generate other expenses, such as network traffic charges or GPS software usage fees, which are equivalent to the indirect cost of the mobile phone, and understand the goods and purchase the mobile phone.
Xiaobian learned from the market, there are several better popular GPS navigation mobile phones: Samsung P1000, MOTO ME525, Nokia 5230 (series), Motorola milestone 2, Samsung i9000, Sony Ericsson X8, Nokia E5, Sony Ericsson X10i Wait. In fact, GPS navigation phones like Nokia, Samsung, Sony Ericsson, Newman and other brands are good choices for everyone, and there are some gaps in price. These can be based on their own evaluation of each brand and their ability to pay. You can buy it.
About GPS navigation mobile phone definition and its principle analysis, as well as GPS navigation mobile phone recommended related issues, the relationship of time is said here today, if interested in GPS navigation mobile phone friends, please pay attention to the game microelectronics network electronic channel And consumer electronics channels.
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