Choose a suitable car audio and video

With the increase in sales of private cars, sales of car audio and video have also increased. How to choose a suitable car DVD navigation audio and video system for our travel escort?

Electronic map is the basic and core part of in-vehicle navigation application. Professional certification and detailed data volume are the basic elements that should be possessed. Therefore, when the majority of vehicle owners purchase navigation products, they must first check the “origin” of the electronic map. According to the person in charge of the State Bureau of Surveying and Mapping, electronic maps are closely related to the safety of car owners, and some pirated electronic maps are misprinted and painted, which will cause trouble for car owners. After reviewing the source of the electronic map, it is also necessary to examine the intension of the electronic map. In addition to high accuracy, professional and detailed navigation electronic maps can also provide national road network maps and detailed maps of major cities.

As GPS vehicle navigation products are used in automobiles, they are required to be adapted to the harsh environment of automobiles in terms of technology and quality, and have characteristics such as shock resistance and high temperature resistance.

At present, car navigation products are used to store electronic maps and other related media information, including SD cards and optical discs. In the driving of the car, due to the influence of external factors such as road conditions, it is easy to scratch the disc, resulting in map information can not be accurately read; and SD card as the media navigation product has a card slot design, high stability, so the seismic performance Well, in a relatively harsh automotive environment, it can protect the data security of electronic maps and is therefore more recognized by users. In the choice of media, the owner can choose according to their needs, if it is often driving in poor road conditions, it is recommended that owners choose to use SD card car navigation products.