What needs to be checked when purchasing an on-board navigator?
The map database of vehicle navigation system comes from many channels, among which the main source is the supplied block database. For a good vehicle navigation system, the number and accuracy of maps and the timeliness of data are very important. No matter how accurate the coordinate position provided by GPS is, if your navigation system can't provide a map of your location or the map provided is wrong, your system can be said to be worthless. Therefore, when purchasing the on-board satellite navigation system, pay attention to the following matters:
Top of the list, check the accuracy of the test system. Choose one or two roads you know, or newly opened hotels, and see if the system can accurately show the location of cars. As the streets and road sections are always changing, your system must also provide regular update services.
Second, consider the storage capacity of the system.
Third, the picture appears. The picture display of the on-board navigation system can be installed on the driving dashboard of the car, or projected onto the screen of a laptop or even a handheld computer. In order to get used to different climate and light conditions, the picture display screen must have strong brightness, size and good resolution.
Article fromJiangmen vehicle navigatorhttp://cnjhl.cn
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