Disadvantages of vehicle navigation

Car navigation often misleads car owners.

There are not a few car owners who are misled by car GPS. For example, some remote areas cannot be found on the navigation map, or "Zhang Guan Dai Li" misleads the owner; Sometimes you can get to the road after crossing a street, but the navigation map is "far away and near", taking the owner for a big spin. At present, car navigation relies on GPS technology, but GPS can't locate 100%. Different from mobile phone broadcasting, GPS can receive signals anywhere, and many things will affect GPS reception, including the distribution of stars in the sky, buildings, viaducts, radio waves, leaves, hot paper and so on. GPS positioning is greatly influenced by external factors. Generally speaking, looking up from the GPS position, you can see the area of the sky, that is, the area where GPS can receive signals.