What do we mean by Bluetooth?

1. Bluetooth is Bluetooth. Bluetooth technology was founded by SIG (Special Interest Group), which is mainly based on Ericsson and has joined forces with Intel, IBM, Nokia, Toshiba and other companies. It is an open standard for wireless data and voice transmission, which mainly solves short-distance wireless connection, generally ranging from 10 cm to10 m. If power is increased or relevant external devices such as optional amplifiers are added, the distance can reach100 m. ..

2. The main applications include the following main aspects:

(1) Support Internet access. Notebook computers or mobile phones with built-in Bluetooth chips can not only use public switched telephone network (PSTN), integrated services digital network (ISDN), local area network (LAN), X digital subscriber line xDSL including ADSL (Asymmetric Digital Subscriber Loop) for Internet connection, but also use cellular mobile network for Internet connection.

(2) Flexible switching connection mode. Within the effective transmission range of the mother machine, such as at home, the mobile phone with built-in Bluetooth chip can be used as a cordless phone. This is very important for domestic users, because it can be used as a cordless phone without two-way charging, which can save the cost of mobile phones. When the user leaves the effective range of the parent machine, the mobile phone used as a cordless phone will automatically switch to the wireless network base station.

(3) Wireless connection between mobile phone and computer. At present, the connection between mobile phone and computer is mostly realized by IrDA infrared or RS232 serial port. Now Bluetooth technology can replace these connection methods. Bluetooth technology is not only convenient to use, but also fast in data transmission. At the same time, it can simplify the connector of the mobile phone, and it is even possible to remove the connector in the future.

(4) wireless hands-free. The mobile phone connected by Bluetooth technology can realize wireless hands-free work, which is very useful in some fields, such as car mobile phone and multi-person video conference.

(5) Synchronous data transmission. No matter in the office or at home, users can realize the synchronous transmission of information such as computers, laptops, mobile phones and PDA through Bluetooth and its corresponding programs. The information transmitted here can be not only words, but also pictures and images. With a digital camera with Bluetooth function, users can send images to their mobile phones, and then send them to any other destination after shooting.

(6) Realize data sharing in a large area, making it easier for users to work. Mobile phones, computers, PDA's, printers, digital cameras, MP3 players, etc. using Bluetooth technology. It can realize the mutual transmission of voice, text, images, files and other information, realize large-scale data sharing, greatly simplify office facilities, and make users' office more simple and relaxed.