What is the reason why the Prado navigation cannot read map data?
1 Answers
Prado navigation cannot read map data may be due to slow loading response, simply close and reopen it. The following is the relevant introduction: 1. The principle of car navigation: Since the position of the satellite is precisely known, in GPS observation, the distance from the satellite to the receiver can be obtained. Using the distance formula in three-dimensional coordinates and three satellites, three equations can be formed to solve the position of the observation point (X, Y, Z). Considering the error between the satellite clock and the receiver clock, there are actually four unknowns: X, Y, Z, and clock difference. Therefore, a fourth satellite needs to be introduced to form four equations for solving, thereby obtaining the longitude, latitude, and elevation of the observation point. 2. The composition of car navigation: One part consists of the GPS receiver and display device installed in the car; the other part consists of the computer control center. The two parts are connected via positioning satellites.