Bluetooth technology for Rear View Mirror

Bluetooth is designed as a replacement for cables: that is, to get rid of that huge tangle of cables that link your mouse, printer, monitor, scanner, and other devices on your desk and around your home. In fact, the first Bluetooth device was a Bluetooth headset, which eliminated that annoying cable to the telephone that got in the way of typing. Many new cars are also outfitted with Rearview Mirror Monitor so that you can use your cellphone in your car, with your car’s stereo speakers and an onboard microphone serving as your hands-free capability. Pretty neat, huh? Like Wi-Fi, Bluetooth can offer wireless access to LANs, including Internet access. Bluetooth devices can potentially access the Public Switched Telephone Network and mobile telephone networks. Bluetooth is able to thrive alongside Wi-Fi by making possible such innovative solutions as a hands-free mobile phone headset, print-to-fax, and automatic PDA, laptop, and cellphone/address book synchronization.

Communication between Bluetooth devices is similar in concept to the ad hoc mode of Wi-Fi wireless networks. A Bluetooth device automatically and spontaneously forms informal WPANs, called piconets, with one to seven other Bluetooth devices that have the same Bluetooth profile. (A Bluetooth profile is simply a specific Bluetooth application — like a headset profile for attaching a wireless headset to a phone, or an audio profile for playing music over a wireless Bluetooth connection.) A capability called unconscious connectivity enables these devices to connect and disconnect almost without any user intervention. To maintain the security of the data you send over a Bluetooth link, the Bluetooth standard includes several layers of security. First, the two Bluetooth devices that are connecting use authentication to identify each other. After the authentication process (sometimes called pairing in the Bluetooth world), the devices can begin sharing information. The data being sent across the radio link is encrypted (Wireless GPS Tracking Device ) so that only other authenticated devices have the key that can decrypt the data.

Going hands-free in your car Bluetooth technology is advancing into the arena of autos, too. Hands-free operation of mobile phones can be handy (pun intended) whenever you’re talking on your phone, but when you’re in a car it can be not only convenient but legally mandated. A number of cities and states in the U.S. (and beyond) ban cellphone use in a car unless a hands-free system is in place. In response to interest by the automotive industry, the Bluetooth SIG formed the Car Profile Working Group in December 1999. This working group has defined how Bluetooth wireless technology will enable hands-free use of mobile phones in automobiles. Almost all car manufacturers now offer hands-free Bluetooth in their cars today. Using the Bluetooth Rear View Mirror in this car, you can pair your mobile phone and then use the steering wheel controls, navigation system screen and controller, and the car’s audio system to control and make phone calls. Very cool.  If your car doesn’t have built-in Bluetooth capabilities and you just can’t imagine seeing yourself in the rear-view mirror with a Bluetooth headset jutting off your ear, you can install a hands-free kit in most cars without too much work. An even easier option is to consider a GPS navigation system; many aftermarket GPS systems now include Bluetooth and can use the speaker built into the GPS or connect to your car’s stereo system for hands-free calling.

More information at http://www.jimilab.com/ .