[Map Knowledge] the introduction and comparison of maps of the City Network + Kay lide + AMAP allow you to better understand the map

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Currently, China has obtained the following qualifications for navigation Electronic Map: four-dimensional map, AMAP, lingtu, changxiang, ruitu Wanfang, Wuhan Gio, Kay lide, and ETU Tong. among them, kaijade and Wuhan gio do not produce diagrams, maps, and imagination. Yi tu is not mainly engaged in the production of domestic data, but is truly engaged in map and data collection and production of four-dimensional, autonavi, and ruitu Wanfang. only the navigation data and navigation engines produced by ruitu Wanfang are among the three companies. four-Dimensional and AMAP data formats use the Mapinfo format. In addition, they can be converted to kiwi in Japan and GDF in Europe. ruitu Wanfang adopts its own format, that is, RTM format. from the perspective of the navigation engine, I think the engines of Kay lide and ruitu Wanfang are good. however, the functions of ruitu Wanfang seem to be more powerful, which is inconvenient for new users. in terms of data volume, the main indicators for map evaluation are the underlying data of the road network and the degree of POI information. In my opinion, AMAP's data is significantly better than that of graph Wanfang and Four-Dimensional Data.

Currently, due to problems such as encryption and process flow of navigation electronic map, it is not possible to download it from the Internet. almost all navigation products on the market now need to be upgraded in the parent company, such as the Beijing yuntong practice (that is, relying on agents to jointly complete the upgrade. however, the service upgrade will eventually transition to network download.

At present, there are dozens of OEM manufacturers on the market, coupled with the entry of foreign navigation manufacturers, the market is chaotic. however, there is still a high risk of post-installation retail. taking Shinko as an example, last year was his best time, with a maximum of two hundred shipments in Beijing. but now, it's a battle. the main reason lies in the quality of navigation products, and the core is map. shinko uses the AMAP diagram,

In short, it is time to enter the navigation market, but it is time to prepare for a long-term war. if there is a drama in the aftermarket, it is expected to start in the second half of next year. if there is no such thing, in China, the products in the unified navigation market are not vehicle navigation, but mobile navigation.

Next, we will analyze the situation of each brand!




In addition to the planned routes, the name of the Surrounding roads and facilities is displayed. In addition, traffic restrictions at intersections are also taken into account in route planning to prevent traffic violations. In addition, you can directly select multiple path planning modes on the navigation map interface. navigation software such as Skywalker and Kay lide needs to select and compare them under the System menu.

 

Of course, intercommunication also has its own shortcomings. Compared with the map interfaces of Skywalker and Kay lide, the map of intercommunication is slightly rough. When the map is reduced to a certain extent, the facilities are mostly shown as black spots; the function button design is not very atmospheric, slightly small, and other operations are prone to errors, and the input method is also difficult to use. The facility information contains a little less, including 9 categories, 40 sub-categories, and more than 1 million facility information points. City communication is sold together with multiple GPS devices, which is sold less separately, but there are also a small number of sales points, the price is generally around 800.




AMAP Preview

The map contains detailed map data of about 100 large and medium-sized cities and more than 1500 county-level cities attached. Currently, high-end and high-end brands such as vanida, shinco, and Nokia use AMAP! Because of its comprehensive data information, the picture is more beautiful. more user-friendly. currently, travel data is not available on other maps ,. the cost of the map is higher than that of the map. why can't some low-end machines use AMAP.




Channel navigation software is one of the best navigation software on the market, it covers 333 administrative divisions at or above the prefecture level in 31 provinces, municipalities, and autonomous regions, 4 municipalities, and 2859 county-level administrative divisions. Not only in the central area of a large city, but also in the suburbs and districts of the city, the county towns, towns, and villages of xingluo qibu can provide detailed Navigation Guidance. In theory, the accuracy of the track chart can be up to 3 meters.

Kay lide and Ling tu Tianji are currently the most popular GPS Mobile Phone navigation software. ZTE and Shenda's GPS Mobile Phones choose the Kay lide software, while qingda (Popular e860 and other models are the supporters of Ling tu Tianji. Currently, the highest version of the Kay lide navigation software is version 3.0, and the Spirit map Skywalker has been upgraded to version 6.0.

Compared with the two excellent navigation software, the Kay lide 3.0 navigation software has made significant upgrades in the National Urban MAP data and related public facilities information points, the city map has increased from the 2.0 cities in the 413 version to the 2862 cities, and has built-in 4 million information points, including street, village, tourist attractions, and business and entertainment geographical information of each city, map data has a wider coverage and higher accuracy. The netutu Tianji 6.0 contains only map data of 337 cities in China, and the information points of related facilities are about 2 million. In contrast, it is clear that the Kay lide 3.0 software occupies an absolute advantage, it is easy to make ZTE E700 a road connection, so that you can quickly learn the current location and surrounding road conditions wherever you go.