What does Bluetooth do?

Question 1: What is Bluetooth? What's the use? 5 points 1. Wireless short-distance transmission is Bluetooth. Its transmission distance is about 10 meters. In order for a Bluetooth-enabled mobile phone to function as a Bluetooth device, it must be connected to a Bluetooth-enabled device.

2. You can listen to the music played on your mobile phone through wireless headphones.

3. Connect to another Bluetooth phone to transfer songs, pictures, etc. to each other.

4. Bluetooth mobile phones can also be connected to computers, but the computer is required to have a Bluetooth adapter.

Question 2: What does Bluetooth mean? What does it do? Bluetooth is a low-cost, high-capacity short-distance wireless communication specification. A Bluetooth laptop is a laptop with Bluetooth wireless communication capabilities. The name Bluetooth also has a legendary story. In the 10th century AD, when the Nordic princes were fighting for hegemony, the Danish king stepped forward. With his unremitting efforts, the bloody war was stopped and all parties sat at the negotiating table. Through communication, the princes settled their differences and became friends. Because the King of Denmark loved eating blue plums so much that his teeth were dyed blue, he was known as the King of Bluetooth. Therefore, Bluetooth has become synonymous with communication. Today, a thousand years later, when the new wireless communication specification was introduced, people named it after Bluetooth.

In 1995, Ericsson first proposed the Bluetooth concept. The Bluetooth specification operates in the microwave frequency band, with a transmission rate of 1M bytes per second and a maximum transmission distance of 10 meters. It can reach 100 meters by increasing the transmission power. Bluetooth technology is globally open and has good compatibility around the world. The whole world can be connected through a low-cost invisible Bluetooth network.

Bluetooth technology is not only used in computers. Many electronic devices such as mobile phones, digital cameras, camcorders, printers, fax machines, home appliances, etc. can use Bluetooth technology to achieve wireless connectivity without having to drag a line. Tail (connecting line). With the popularization of Bluetooth technology, you no longer have to worry about the wiring of electrical appliances when decorating your home; when using home appliances, you don’t have to worry about a lot of remote controls. A mobile phone or a car key can handle everything; when you are away from home, you don’t have to worry about a lot of remote controls. The company's work schedule and pictures of family members at home can be obtained anytime and anywhere; there is no need to queue up to check in and pay, and it can be easily completed by passing near the payment point without entering the door... The widespread application of chicken tooth technology will make our lives extremely easy.

Bluetooth connection between mobile phone and computer: (Take Sony Ericsson as an example)

First, correctly install the driver of your Bluetooth adapter on the computer (I won’t go into details here, if you don’t understand, please (Refer to relevant information)

[Pairing]

Plug in the adapter so that it is connected. The Bluetooth logo in the taskbar should change from red when stopped to white when connected.

Enter the phone menu - Connection - Bluetooth - Matching device - Add device, and then the phone will start to search for surrounding Bluetooth devices. Your Bluetooth adapter will be found in a while, select your search When you arrive at the device, enter the identification code (you can decide it by yourself, as long as you enter the same thing on both sides. I usually enter 4 zeros for Sony Ericsson). After confirmation, the computer will prompt you to enter the identification code. After entering the identification code just now, the two devices will be connected. Paired.

[Computer->Mobile phone]

When transferring things to the mobile phone, you can only transfer files that can be recognized by the mobile phone, such as: pictures-jpg; themes-thm; audio -mid, amr; JAVA-jar, game-mpn, etc.

Keep the mobile phone’s Bluetooth and Bluetooth adapter paired and turned on. Select the file you want to upload, right-click the mouse - Send to - Bluetooth, select the device and confirm to send. The mobile phone will prompt The name and size of the transmitted file are asked whether to receive it. Sometimes it is automatically received without asking. This is related to the settings. After the acceptance is completed, the phone will automatically store it in categories.

[Mobile phone -> Computer]

When sending something from your mobile phone (it must be paired before), select the file you want to send - More - Send - Via Bluetooth, Then select the target device and send.

Note: Sony Ericsson mobile phones can only send pictures-jpg; audio-mid, amr; themes-thm.

Others such as JAVA-jar, game-mpn, etc. cannot be sent.

Question 3: What is the use of Bluetooth? Bluetooth can be used to transfer files, music, pictures, videos, and files across platforms across mobile devices. The most important thing is that it is free and does not require traffic. The new Bluetooth 4.0 allows faster transmission. Can be connected to Bluetooth headsets, smart watches, and monitors.

Question 4: What does mobile phone Bluetooth mean? What are its functions? Bluetooth is the name of a wireless transmission tool! Can realize wireless transmission of text, pictures, videos, software, etc.! It must be kept within 100 meters to be effective!

Question 5: What is the function of mobile phone Bluetooth? How to use? You can also transfer files and play games online using Bluetooth

Please adopt if you are satisfied

Question 6: What is the role of mobile phone Bluetooth? Nowadays, many mobile phones have the slogan of Bluetooth support, but supporting Bluetooth does not mean It's the same as indicating the Bluetooth transmission capability.

Some people may think that this is related to the Bluetooth version of the mobile phone. Some Bluetooth 1.1 and some are Bluetooth 1.2.

In fact, the reason is not at this level, but more related to the standards of various Bluetooth projects.

If your mobile phone uses more Bluetooth standard projects, then your mobile phone will The stronger the Bluetooth capability.

Introduction to the Bluetooth function of mobile phones

First, let’s talk about several major Bluetooth standards

1. Address book

Almost all Bluetooth Mobile phones can be transferred to the OUTLOOK contacts of computers,

However, very few of the OUTLOOK contacts of computers can be transferred to mobile phones.

2. Communication transmission

In fact, this is the Internet function, which is supported by all Bluetooth mobile phones. The role of mobile phones can be considered to be equivalent to that of cats.

The other is GPRS on WAP network.

This is also a GPRS mobile phone that supports GPRS, a WAP mobile phone that supports WAP, and a CDMA mobile phone that supports CDMA

3. Fax

This function may be rarely used because mobile phones There is a service fee for adding the fax function

4. Bluetooth earphones

There is nothing special about this, it is supported by all.

Bluetooth headsets were born for Bluetooth mobile phones.

It’s just that the price is a bit more expensive and there’s no way around it

5. File transfer

Most mobile phones support file transfer, but most of them transfer files from the mobile phone to other devices. The Bluetooth device supports FTP file transfer from PDA and computer to mobile phone.

6. Serial port service

This is hard to say, many functions can be realized through the serial port

For example, a Bluetooth mobile phone can control a computer, or connect to the network, etc.

This can actually be called an extension of existing functions.

Aren’t there many data cables with S port~~~

7. Mobile phone service

There are really not many mobile phones that support this function

< p> Perhaps Sony Ericsson models have more support. Through this function, you can not only send text messages with computers and PDAs

but also make calls very smoothly, representing the MP of software PDA

Now let me compare my three Bluetooth mobile phones S65

The first one is X11, but it is Panasonic’s earliest version of Bluetooth mobile phone

They all support the simplest Bluetooth< /p>

For the mutual transmission of files, the function is not as good as infrared

However, Bluetooth transmission speed is very fast and the protection is very safe

Normally, if you don’t accept files, you won’t be able to On, the communication function is very good for transmitting with smart Bluetooth phones such as SX1

The second one is S55, which is Siemens’ first Bluetooth phone

It is more comprehensive in terms of functions Almost all the functions I mentioned above are available

and FTP files can be supported on the mobile phone.

That is, I can directly use a computer or PDA to control the file management on my mobile phone.

p>

And it is very convenient to send various files in my device to my mobile phone

The third one is S65, which supports stronger email capabilities

But it is different from the S55 Bluetooth is relatively similar and does not support more functions.

Through comparison, we found that although Bluetooth in mobile phones are still high-end models,

But I think mobile phone Bluetooth still plays a very important role in data transmission of mobile phones.

SL75 abandons traditional infrared and supports Bluetooth.

Bluetooth will become one of the main transmission methods for handheld wireless devices.

Question 7: What is the use of Bluetooth on the mobile phone? Bluetooth is a short-range wireless data communication technology standard jointly proposed by Toshiba, Ericsson, IBM, Intel and Nokia in May 1999. It can realize single-point to multi-point wireless data and sound transmission within a radius of 10 meters, and its data transmission bandwidth can reach 1Mbps. The communication medium is electromagnetic waves with frequencies between 2.402GHz and 2.480GHz.

Characteristics of Bluetooth communication technology

■Bluetooth operates in the globally open 2.4GHz ISM (ie Industrial, Scientific, Medical) frequency band;

■Uses frequency hopping Spectrum spreading technology divides the frequency band into several hop channels. In a connection, the radio transceiver continuously "hops" from one channel to another according to a certain code sequence;

■One Bluetooth device can establish connections with seven other Bluetooth devices at the same time;

■The data transmission rate can reach 1Mbit/s;

■Low power consumption and good communication security;

■Can connect over obstacles within the effective range, with no special communication perspective and direction requirements;

■Supports voice transmission;

■Networking Simple and convenient

Purpose of Bluetooth communication technology

Bluetooth technology is an emerging technology and has not yet been widely used. Currently, many Bluetooth devices are still in the laboratory experimental stage. But what is certain is that most devices with infrared wireless data communication capabilities today can also use Bluetooth technology to achieve wireless connections in the future. At the same time, the network characteristics and voice transmission technology of Bluetooth technology enable it to realize certain specific functions that cannot be achieved by infrared technology, such as wireless phones, multi-device networking, etc.

Recognition by manufacturers and consumers

Bluetooth technology has received responses from more than 2,000 companies, thus having huge development and production capabilities. Bluetooth has gained a lot of popularity, and consumers are very interested in this technology.

Implantation cost

Currently, Bluetooth devices on the market are still relatively rare.

USB interface Bluetooth adapters, Bluetooth PC cards and Bluetooth mobile phones are already on the market, and the prices are very high. It can be seen that the implantation cost of Bluetooth in the early development stage is still relatively high. However, it is estimated that the implantation cost can be less than 30 US dollars after mass production. When Bluetooth technology matures, the cost of implantation should be controlled within $10.

Disadvantages

Bluetooth is a technology that is not yet fully mature. Although it is described as promising, it has yet to be rigorously tested in actual use. The communication speed of Bluetooth is not very high, which may also affect its development in today's era of data explosion.

Currently, mainstream software and hardware platforms do not provide support for Bluetooth, which increases the cost of Bluetooth applications and makes it more difficult to popularize.

The ISM band is an open band and may be interfered by interference from microwave ovens, cordless phones, scientific research instruments, industrial or medical equipment.

Infrared

Infrared IrDA, referred to as IR, is a wireless communication method that can transmit wireless data. Since its invention in 1974, it has been widely used, such as infrared mice, infrared printers, infrared keyboards, etc.

Characteristics of infrared: Infrared transmission is a point-to-point transmission method. It is wireless. It cannot be too far away, it must be aligned, and there must be no obstacles in the middle, that is, it cannot pass through walls. It is almost impossible. Control the progress of information transmission; IrDA is already a set of standards, and the IR receiving/receiving components are also standardized products.

The difference between infrared and Bluetooth

1. Distance

Infrared: alignment, direct, 1-2 meters, one-to-one

Bluetooth: about 10 meters, can strengthen the signal, can go around, can be misaligned, can be in different places room, the maximum number of links can be up to 7, and the hardware is distinguished at the same time.

2. Industry

Infrared: very popular

Bluetooth: preliminary application

3. Speed ??

Infrared: Fast

Bluetooth: Slow

4. Security

Infrared: No difference

Bluetooth: Encrypted

5. Cost

Infrared: a few yuan---tens of yuan

Bluetooth: 400-800 yuan

To put it bluntly, wireless headphones...>>

Question 8: What is the use of turning on Bluetooth? After Bluetooth and mobile phone are paired, you can transfer files to each other and make and receive calls (Bluetooth headset).

After Bluetooth is matched with the computer, you can control the computer (Bluetooth mouse)... There are many Bluetooth devices, it depends on which one you have.

Question 9: What is the role of mobile phone Bluetooth? Bluetooth is a wireless transmission standard, generally within a distance of 10M. A mobile phone with Bluetooth function can mainly have the following functions: use Bluetooth headsets (i.e. wireless headsets); transfer data with computers (download songs, pictures, videos, etc.); use other Bluetooth devices.