Bluetooth Low Power Consumption (BLE) technology is currently the most widely used wireless communication technology, which can transmit and apply data through Bluetooth low power consumption. Currently, Bluetooth low power consumption on the market generally supports Bluetooth 5.0 connection, also known as BLE 5.0 technology. This technology can be said to be the most mainstream Bluetooth communication technology, and many mobile phone and computer manufacturers have begun to popularize it. Today, we will introduce the principle of Bluetooth AOA positioning algorithm to you.
What is Bluetooth AOA
Bluetooth Low Power Consumption (BLE) technology is currently the most widely used wireless communication technology, providing direct wireless communication from the main device to auxiliary devices, and from auxiliary devices to the main device.
AOA, audioAddressing, is a technology that determines user location through software algorithms. Simply put, when a Bluetooth base station is connected to a mobile phone, the phone communicates with other Bluetooth base stations to obtain more information and obtain user location information.
How to use Bluetooth positioning
1. When searching for Bluetooth devices on your phone, if you find the word 'Bluetooth AOA', click 'Connect' to enter the Bluetooth device. At this point, the Bluetooth display on your phone will be turned on.
2. Open the computer you want to locate on the computer, enter Bluetooth settings, and you can see that the device name connected to the computer is 'Bluetooth AOA'.
3. Select the corresponding device and click Connect to successfully connect.
Advantages of using Bluetooth technology for positioning
1. Reduce costs and increase the power consumption of Bluetooth chips without the need for additional hardware costs.
2. Bluetooth technology has low requirements for devices, does not require any configuration, and does not require network deployment, making implementation simple and convenient.
3. Ensure positioning accuracy.
4. Fast data transmission speed and low bandwidth requirements.
5. Low power consumption, which can extend battery life.
6. The equipment occupies a small area and does not require too much space.
How to use Bluetooth for high-precision positioning
Usually, using Bluetooth for positioning is mainly based on the characteristics of Bluetooth AOA. Bluetooth AOA belongs to offline positioning technology, and when an object is moving, its signal strength will continuously decrease. In this case, the measuring device can detect changes in the signal strength to estimate the position of the object. The Bluetooth AOA positioning method is relatively simple, requiring only the calculation of the received signal strength.