Google launches WifiNanScan app to measure the distance between phones
Neighbor Awareness Network (NAN) is a technical standard introduced by the WiFi Alliance earlier. With the aid of this standard, devices can discover and exchange data without traditional network infrastructure.
For example, you can connect the device to the device and then transfer data or play games without an Internet connection, and you can send files for printing without logging in.
Google has actively adopted this technology since Android 8 to enhance the discovery capabilities of Android devices. Of course, this mainly refers to the ability to discover local devices.
This includes, but is not limited to, discovering nearby devices to directly create network connections and then use them to share songs, videos, and even directly use them to send messages and send various files. At present, many technology companies are studying the use of Bluetooth technology to build mesh networks.
Google believes that the NAN uses WiFi-related technical standards to connect farther than Bluetooth, and the data rate it can transmit is faster than Bluetooth.
Therefore, in the Android system, the company uses NAN and builds related models. The ultimate goal is to provide an interface for developers to develop their creativity.
So here is the introduction of the WiFiNanScan application, this application is an example application using the NAN technique launched by Google, which can be used to detect the distance between mobile phones.
Google claims that with this application, the mobile phone can be used to conduct distance testing and verify data transmission, with a detection accuracy of 1 meter and a maximum detection range of 15 meters. “Developers, OEMs and researchers can use this tool to validate distance/range measurements enabling the development of peer-to-peer ranging and data transfer, find my phone and context-aware applications based on the WiFi Aware/NAN API.”