The eSi core technology of the Internet of Things has become more and more hot in the past two years and gradually applied to more and more fields. The key to the development of eSIM is due to several core features of eSIM technology:
IoT Wi-Fi Internet Connection
1, does not occupy space, because it is embedded in the device in the manufacturing process, compared to the physical card eSIM card can save more space;
2, can adapt to abnormally harsh environment, compared with the device integration method plug-in traditional SIM card, able to withstand high temperature, dust, shock, with a wider range of electrical characteristics;
3, flexibility, flexible choice of operator network, OTA over the air to dynamically write user subscription information, you can achieve product sales after the user's own activation;
4. eSIM based on the security domain architecture and the introduction of PKI security infrastructure provides greater security.
Car networking needs
There are several aspects of car networking needs:
1. The car network is a huge network composed of information such as vehicle position, speed, route, and surrounding objects. The AI ​​artificial intelligence replaces the driver to control the vehicle mechanical device. The car network communication requires higher stability and better anti-interference. Strong, communication chip with small volume, low energy consumption and other special needs;
2. The car networking application scenario is often a high-speed moving state. During the running of a vehicle, vehicle vibration may cause poor contact of the traditional plug-in communication chip and cause the communication service to be interrupted. Therefore, the communication chip required for the car networking needs to be earthquake-resistant and dust-proof. Moisture-proof, harsh environment, etc.;
3ã€In the automobile market, the parts and components of the automobile market are divided into pre-installed and post-installed markets. The car makers of the car network must integrate the communication modules in advance during the vehicle production process, and integrate the car networking application platform when the vehicle is delivered. Increase the vehicle's value-added services. In this way, after the vehicle is sold to the target market, the communication service of the customer's local communication service provider can be used directly;
4. The sales, distribution, distribution, and use of automobiles, often involve different regions. The scenario of production of vehicle A, assembly of B, sale of C, and cross-country roaming during the use of the vehicle is a relatively common product ecology. Because of the restrictions of telecom operators and various national policies, the technical characteristics of eSIM can well match the technology and scene requirements of telematics vehicles for communication chips before and after vehicle sales, network access permission, and outbound roaming requirements. Ideal for use in the networking of cars.
Car networking nerves
As one of the core areas of the Internet of Things, auto manufacturers around the world are actively deploying and exploring the application of car networking. The European Union requires that all new cars in 2018 must have an online call center function. The embedded eSIM technology can effectively meet the application requirements of the vehicle networking communication module in various aspects, enhance the reliability of various application scenarios of the vehicle networking in the driving process, and improve the communication performance of complex scenes. The eSIM chip is the central nerve of the Internet of Things device. The eSIM technology is the core of car networking and is the key link in the application of car networking.
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