US20240233283
2024-07-11
Physics
G06T19/006
A location tracking system utilizes augmented reality to accurately locate a target device using a recipient device. The recipient device first receives the target device's position over a data network and moves closer until it enters the Ultra-WideBand (UWB) signaling range. Once in range, the recipient device measures the distance and direction to the target device using Time-of-Flight (ToF) measurements from UWB signaling, enabling it to determine a more precise position for generating an augmented reality view.
Current mobile devices allow users to share their location by placing a pin on a digital map. However, this method does not assist in locating the user once they reach the pinned location, particularly in crowded environments. For example, finding someone in a busy building can be challenging, as the pinned location does not provide real-time assistance for locating individuals among many others.
The proposed system combines network geolocation services with device-to-device communication to enhance location tracking accuracy. Initial approximate locations are shared over a network, but as the recipient device approaches the target device, it switches to more precise communication methods to measure exact distances and directions. This dual approach allows users to effectively coordinate their movements in real-world settings.
The system also facilitates group coordination by allowing members to share their real-time positional information and status updates seamlessly. By issuing status requests and receiving responses from group members, an augmented reality view can be generated that displays each member's location along with their current status. This feature is particularly beneficial for teams such as first responders who require efficient and effective communication during collaborative tasks.
Both target and recipient devices are equipped with various technologies, including GPS, Bluetooth 5.1, and UWB radios, which enable accurate positioning and communication. As users move closer to each other, devices exchange messages directly to establish their relative positions accurately. The resulting augmented reality view overlays visual identifiers in real-time, helping users locate each other even in complex environments.