As a navigation product, we are most concerned about its starring skills, that is, the information signal takes over the ability. Most of the car GPS sold in the market today is mostly adopted the third -generation chip of Sirfstariii. The upper hand of this chip is to capture and track information signals that can be captured and tracked in an environment where it is observed and the climate environment is oblique. Break. In addition, the black and white of the chip is also directly related to the fast and correct black and white when the way is. When you go to the same destination, the differences in the chip will probably show different lines, and what we need is the best line

　　The products of large brands are not only controlled by their own quality, but they can also enjoy the toll -level service of a certain period of time. Domestic brands include the Garmin of the Garmin we know, Yuda's MIO series, and brands such as Navman and Litai from Europe and TW. Although Nokia's participation has also made the car GPS more concerned. Domestic brands are endless, such as Newman, Patriot, Patriot, New Sciences, Wanlida, Austrian, God Walker, Leading God and other brands. In fact, after the selection of brands, in terms of the selection of GPS navigation products, the follow -up problems are even more tense, because the map is updated in time. Different manufacturers have divergent sources of map data, and there are many ways to update the charges. Do a good job when you use it to avoid some unavoidable poverty after use.

　　Electronic navigation map is another tension component that GPS navigation depends on work. Whether the accuracy of the electronic navigation map directly determines whether the owner can reach the destination faster and more easily. In the future market, whether it is domestic or completely imported, the built -in maps of the car GPS products are only the capital of the only chart in the domestic, and the quality is also different. Poor. Generally

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GPS vehicle autonomous navigation system has the following functions