Bluetooth technology is a short-range low-speed wireless communication technology that locates by measuring the strength of the signal. It supports the communication between laptops, mobile phones, and other mobile devices for data and voice transmission. At present, Bluetooth's transmission range is about 10m, and the rate is 1Mb/s. After the new standard comes out, the transmission range can reach 10Mb/s. Bluetooth technology is a cable used to replace portable or fixed electronic devices. Or wired short-range wireless connection technology.
Using Bluetooth technology, it can effectively connect mobile phones, laptops, PDAs and various digital information devices to eliminate common cable cables. At the same time, it forms a network around the individual, making all kinds of information around. Mobile portable devices can seamlessly share resources. Because of its openness, Bluetooth technology is currently only a specification and has not yet become an industry standard. There are still some problems in interoperability between devices of different brands and models. However, Bluetooth technology itself has many advantages: the frequency band in which Bluetooth operates is the ISM band, that is, the industrial, scientific research and medical frequency bands. It is a universal and unlicensed frequency band; data and voice transmission can be performed in real time; due to the use of advanced frequency modulation and correction Wrong coding technology, Bluetooth has good anti-interference ability, and can communicate more reliably between Bluetooth-equipped devices. In addition, Bluetooth has strong portability and can be applied to a variety of communication occasions, such as WAP (Wireless Application Protocol), GSM (Global Mobile Communications), etc., and can be flexibly roamed after identity recognition, and the security is also good, and Bluetooth devices have low power consumption, are easy to implement, are easy to promote, and have little harm to the human body.
Mainly used in the following aspects:
(1) As far as current developments are concerned, Bluetooth technology is used in devices such as mobile phones, earphones, PDAs (ie, personal digital assistants or PDAs), digital cameras, and digital cameras. Due to the high penetration rate of mobile phones, Bluetooth mobile phones have become the main application of Bluetooth technology.
(2) After a Bluetooth-enabled mobile phone is equipped with a small Bluetooth headset, you can put the phone in your pocket for hands-free calling. In this way, in the cold wind, when driving, when the hands are busy, you can easily answer the phone, and can also avoid cell phone radiation.
(3) Bluetooth mobile phone can be easily connected to the computer to achieve file transfer. In addition to pictures, ringtones and Java games, the general document can also be transmitted to the Bluetooth mobile phone, so that the Bluetooth mobile phone can be used as a USB flash drive. . The Bluetooth mobile phone can wirelessly connect to the laptop within a certain range, making the wireless Internet access of the laptop a reality.
(4) Two users who also hold Bluetooth mobile phones can also exchange business cards, telephone and ringtones, or wireless online games through mobile phones. Coupled with a matching Bluetooth helmet, Bluetooth glasses, Bluetooth jacket and many other products, Bluetooth wireless charm allows you to experience the fashion life.
(5) In fact, Bluetooth can also be used in many fields such as wireless devices, image processing devices, security products, consumer entertainment, automotive products, and home appliances. With the continuous maturity of Bluetooth technology, various Bluetooth products will deepen people's lives, change people's lives and work methods, and greatly improve people's quality of life.
Bluetooth adapter built-in antenna, no need for USB connection, easy to use, easy to carry, wireless transmission of files, audio and video, wireless printing, wireless networking and other functions; wireless connection with Bluetooth technology devices (such as computer / PDA / mobile phone / printer / Wireless game controller, etc.); Supports VoIP service for VoIP calls, and seamlessly connects Skype software for instant messaging on VoIP.
Bluetooth wireless network card, just plug in the computer's PCI slot to use. With the Bluetooth communication function, the computer can communicate wirelessly with various Bluetooth devices such as Bluetooth mobile phones, Bluetooth handheld computers, Bluetooth keyboard mice, and Bluetooth headsets.
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