If the navigation doesn't report speed detection, does it mean there's no speeding?
2 Answers
No, the navigation can only remind you whether there is speed detection ahead. You need to judge whether you are speeding by yourself. The following is a related introduction to car navigation: 1. Components: The car GPS navigation system consists of two parts. One part is composed of the GPS receiver and display device installed in the car; the other part is composed of the computer control center, and the two parts are connected via positioning satellites. 2. Working principle: 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. 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.
Hey, I've been driving for over ten years, and this is something you really can't rely solely on whether the navigation alerts you about speed cameras. Last time I was on the highway, the navigation was completely silent, no warnings at all. I was in a hurry and sped up to 130, only to get caught by a mobile speed camera parked on the roadside. The ticket arrived at my home, and that's when I found out the speed limit was 120. Navigation system map updates often lag behind reality—it can only show fixed points entered into its database, and many temporary or hidden devices aren’t even in the system. Just because the navigation doesn’t alert you doesn’t mean you’re not speeding. The key is to check whether your speed exceeds the limit. I’ve made it a habit to check speed limit signs before driving—don’t slack off, safety comes first. Also, navigation relies on electronic signals. In mountainous areas with weak signals or when the app malfunctions, it might miss alerts or give false ones, increasing the risk. Setting up manual speed reminders in the app regularly adds an extra layer of protection. In short, never treat your navigation like a safety charm—keeping an eye on the dashboard and road signs is what really matters.
