What is the difference between Bluetooth transmission and infrared transmission?

Bluetooth is wireless signal transmission. Whereas, infrared is just light transmission. Both are ways of data transfer.

Bluetooth does the data transmission job by sending some weak radio signals. In other words, there are no big limitations. It's just that it doesn't support long distances, and generally only supports within 10m.

And there are more worries about Bluetooth can be connected, mobile phone to mobile phone, mobile phone to Bluetooth headset. Mobile phone to computer. There are also digital devices such as printers.

The premise is that both devices support Bluetooth transmission. Infrared is transmitted by light. Both phones must support IR.

Moreover, when transmitting data in the infrared, the infrared interface must be aligned. No obstacles in between. It's not that convenient compared to Bluetooth.

It is also possible to connect some digital devices, but it is outdated and there are not many devices that can be connected. And the transfer speed is not faster than Bluetooth. I don't like copying.

Hehe. Just follow your own understanding, sort it out through your brain. And then tell you.

Speed and transmission distance are not the same!

Regarding the meaning of infrared transmission, the computer professional term Hu Sui Zi explained.

IR (IR, Infrared) infrared communication port, through which we can connect desktops, laptops, PDA (Personal Digital Assistant), sailing trembling machines and other devices without connecting wires. As a wireless transmission device for communication between the laptop and the outside, it is very simple and convenient to use, and the transmission speed can reach 4Mbits, which is also satisfactory.

It's definitely Bluetooth,].

The difference between infrared and Bluetooth.

1 Distance. Infrared: aligned, direct, 1-2 meters, one-on-one.

2 Speed. Infrared: Slow.

Bluetooth: Fast. 3 Security.

Infrared: No difference.

Bluetooth: Encrypted.

4 Cost. Infrared: a few yuan - tens of yuan.

Bluetooth: about 100 yuan.

The most popular explanation: when the infrared transmission of two mobile phones, there can be no object in the middle. Otherwise, after blocking the route of infrared transmission, the transmission between the two mobile phones will be interrupted.

It's like someone blocking the TV remote control in the middle, so you can't control the TV tuning anymore. Although Bluetooth is also wireless transmission, it is less affected by external factors than infrared. There is only a distance limit, as long as both phones have Bluetooth function at the same time, files can be transferred within the specified distance, regardless of the location of the two phones.

That's the most concise introduction.