Min menu


WifiNanScan .. Application from Google to measure the distance between phones


For past several Android versions, Google has been working on local discovery technologies that apps can use to find objects and nearby users, but its most recent contribution is the version of the WiNanScan app for developers for the Wi-Fi Aware experience.

Wi-Fi Aware takes advantage of the automated nature of user proximity to enable innovative applications, and Wi-Fi Aware devices constantly detect other devices within the user's wireless network before linking up, making it easy to find nearby information and services that match user preferences.

WifiNanScan measures the distance between two smartphones using wi-fi aware protocol (also called NAN), and is designed as a search, demonstration and testing tool for developers, vendors, universities, and more.

Using this application, it is possible to get a distance measurement of about one meter with phones that are 15 metres apart.

Developers, hardware manufacturers and researchers can use this tool to validate distance or range measurements that enable the development of scope and peer-to-peer data transfer, and context-aware applications based on Wi-Fi Aware.

Wi-Fi Aware allows Android devices to detect and connect to each other directly without any other type of connection between them, such as an active Internet connection.

APIs detect nearby devices and create network connections that can share large amounts of data or send SMS messages.

Google says this technology supports higher transmission rates over longer distances than Bluetooth connections, and potential use cases promoted by The Wi-Fi Alliance include:

  • Send the document safely to the printer without first signing in to the network.
  • View a restaurant menu and make a reservation while walking offline, even when the restaurant is closed.
  • Automate and log into school.
  • Simplify airport security procedures using a mobile ID, such as a driver's license or passport, without requiring passengers to provide an actual ID.
  • Connect with people close to you to play a favorite game on mobile devices.
  • Allow a friend in the vicinity to hear the songs your device plays at the same time.
  • Bring improved educational experiences to students visiting a museum, art gallery and field trips.
  • Enable autonomous vehicles to instantly identify other devices and automatically exchange information.