Precision Finding

What is Precision Finding?

Precision Finding is a technology that enables users to accurately locate specific objects using a combination of technologies such as Ultra-Wideband (UWB), Bluetooth, and augmented reality. This technology often integrates with smartphones or other devices to provide real-time, directional guidance to find lost items.

An image illustrating the concept of Precision Finding using a smartphone to locate a thing, for example, keys, highlighting the use of UWB and BLE technology.

Key Features

High AccuracyUtilizes UWB and BLE technologies to provide precise location tracking within inches
Directional GuidanceProvides visual, haptic, and audio guidance on a user’s device to help locate the tagged item
Augmented Reality IntegrationSome systems use AR to visually guide users to the item’s location through their smartphone camera
Indoor and Outdoor UseEffective in both indoor and outdoor environments, overcoming the limitations of GPS
Privacy ProtectionDesigned with various features to protect the privacy of the users and prevent unwanted tracking

Structure

Precision Finding systems consist of a network of technologies working together:

  • Tracking Device: A small, portable device is attached to the item to be located, emitting UWB or BLE signals.
  • Signal Technologies: UWB and BLE technologies are used for distance and direction measurement.
  • Smartphone Application: A dedicated app that interfaces with the tracking device and provides user guidance.
  • Augmented Reality Engine: Some systems incorporate an AR engine into their smartphone app for visual guidance.

Types

  • UWB-Based Precision Finding: It offers the highest accuracy using UWB technology and is ideal for precise indoor tracking.
  • BLE-Based Precision Finding: It uses Bluetooth Low Energy for proximity sensing, which is more common due to widespread Bluetooth device availability.
  • Hybrid Systems: Combine UWB, BLE, and sometimes GPS for comprehensive tracking capabilities across environments.

Precision Finding of Apple’s Find My App

Apple Inc. uses Precision Finding and UWB technologies for a similar feature in the Find My app. First, this function was available only for AirTags, but now the users of the new iPhone 15 and Apple Watch Series 9 and Ultra 2 can use it too. Apple’s Precision Finding allows higher accuracy for locating own devices or friends.

References

  1. Accuracy and precision – Wikipedia
  2. The Difference between Accuracy and Precision Measurements | Precisa
  3. How to use Precision Finding on Apple Watch to find your iPhone
  4. Find your keys, backpack, and more with AirTag and Find My | Apple Support
  5. How to Use Precision Finding to Locate an AirTag | MacRumors by Tim Hardwick
  6. What Are Apple AirTags and How Do They Work? | SafeWise by Cathy Habas
  7. What is Precision Finding Feature On Airtags That Lets You Track Lost Items | CASHIFY by Akhil Taneja 27th Oct 2023

Additional Resources