stay Automotive Electronics The rapid expansion of connectivity is expected to further promote the use of more semiconductors in automobiles. In particular, Bluetooth and Near Field Communication (NFC) are two major wireless technologies for automotive connectivity. They have similarities and differences, which will determine how they are used in automotive applications. NFC has achieved limited success in the automotive field. NFC is a technology developed by Philips Electronics and Sony. As the name implies, NFC is a connection technology that allows devices within 4-8 inches (10 to 20 cm) to interconnect. Fast speed, easy operation and high security make this technology suitable for communication emphasizing security, such as currency transaction, private data collection, ticketing and general information exchange. Bluetooth has become ubiquitous. Together with Wi Fi, Bluetooth is the most diversified wireless technology and has been used in a variety of products, from mobile phones to laptops and tablets. With the wide use of various devices, Bluetooth has become the priority wireless technology for automobile integration. It is an obvious trend for consumers and mobile devices to enhance the existing automotive infotainment systems. In 2010, 93% of cars in the United States provided Bluetooth, and many models used it as standard equipment. This shows the great success of Bluetooth. GM began to bundle Bluetooth with ONStar. OnStar is standard on most GM models. According to the availability data of information and entertainment technology of IHS iSuppli, more than 69% of all models launched in 2010 in the nine core countries tracked by IHS iSuppli provide Bluetooth. According to IHS iSuppli, the global distribution rate of Bluetooth is about 24% at present, and will rise to 59% by 2017. It can be seen that Bluetooth has become the de facto wireless connection standard in the car, which is mainly used to meet the needs of handsfree calls on mobile phones. At the same time, there are new or mature alternative Bluetooth specifications to support data connection, music, SMS, basic control Features and mobile applications. Comparison between NFC and Bluetooth 4.0 The following table shows the characteristics of NFC and the comparison with Bluetooth 4.0 specification.
The main advantage of NFC is its inherent safety level. The communication distance of this technology is limited, and a single point-to-point connection also limits the possibility of being intercepted, so it is relatively safe. In addition, NFC technology supports advanced encryption, which makes NFC based systems suitable for financial and other types of secure transactions.
