How to Solve No Network in Car?
1 Answers
Some vehicles come with built-in 4G. If there is no network in the car, it may be due to expired data, which requires top-up. The built-in 4G network in the car uses a SIM card bound to the vehicle. The principle of using the built-in 4G network in the car is the same as that of a mobile phone SIM card. Although both in-car 4G networks and mobile phone networks are used by binding SIM cards, the SIM card for cars is a special card and is built into multifunctional vehicles. Even if a mobile phone SIM card can be inserted into a multifunctional vehicle, the system cannot recognize it, so the two are not interchangeable. More information about in-car networks is as follows: 1. Introduction: In-car networks were initially used for communication between sensors, controls, and actuators inside the car, connected through point-to-point wiring to form a complex mesh structure. 2. Function: With the increasing complexity of electronic control systems and the growing demand for communication capabilities between electronic control units inside the car, using point-to-point connections would increase the number of wiring harnesses inside the car. This poses significant challenges in terms of reliability, safety, and weight for car design and manufacturing. Therefore, to reduce internal wiring, achieve data sharing and fast exchange, and improve reliability, etc., rapidly developing computer networks have enabled automotive electronic network systems with basic structures such as CAN, LAN, LIN, MOST, known as in-car networks.
