Where does the network in the car navigation come from?
2 Answers
The network in the car navigation comes from three sources: 1. Real-time positioning signals transmitted via satellites; 2. Mobile network signals provided by the vehicle's infotainment system; 3. Signals provided by connecting the vehicle's infotainment system to a mobile hotspot, all of which are very convenient to use. Vehicle navigation requires regular updates. Some vehicle infotainment systems support online updates, where owners only need to periodically check for navigation updates and confirm the update. Other vehicle infotainment systems do not allow online updates and require downloading the navigation update package to a USB drive, then connecting it to the vehicle's infotainment system for updating.
Last year when I installed a navigation system in my car, I researched this topic. There are primarily three sources for in-car navigation network connectivity: First, some vehicles come with a hidden SIM card slot from the factory, like my SUV where you can simply insert a data card for internet access. Second, connecting via Bluetooth or WiFi directly to your phone to share its mobile network signal. Third, some premium cars come with built-in eSIM chips, where manufacturers cooperate with carriers like China Mobile or Unicom to provide built-in data plans. Once connected, the navigation system can display real-time traffic updates, speed limit alerts, and other practical features. Just remember to regularly top up your data plan, especially for vehicles with built-in eSIM as you'll need to renew the subscription after the two-year free period expires.
