UWB User Terminal Networking for Accurate Multi-User Relative Positioning
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Solution Overview
Problem
Existing user terminals struggle to accurately determine and maintain relative position information between users, especially in environments without direct connection to a base station, limiting effective interaction and information sharing.
Innovation Solution
A user terminal configures a first UWB network using UWB sensors, antennas, and tags, estimates relative positions, and connects to adjacent UWB networks to obtain precise relative position information, enabling interaction and information sharing with multi-users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user terminal uses traditional localization techniques without UWB network connection, then the device can operate independently, but the relative position information between users cannot be accurately determined
Solution Approach 1:
The system divides the localization problem into two segments: UWB network-based precise relative position measurement for connected users, and traditional localization methods for independent operation. This segmentation allows the system to achieve high precision when needed while maintaining operational independence when UWB networks are unavailable.
Solution Approach 2:
The patent introduces UWB networks as an intermediary system that enables precise relative position measurement between users. The UWB network acts as a mediator that provides accurate positioning data without requiring complex anchor-based infrastructure, resolving the contradiction between measurement precision and device complexity.
2Area of stationary object
If UWB network range is extended to cover wider areas, then more users can interact, but the position accuracy may deteriorate
Solution Approach 1:
The patent extends the UWB network coverage by introducing multi-hop communication and ad-hoc network formation, effectively adding spatial dimensions to the network topology. This allows the system to cover wider areas while maintaining position accuracy through distributed measurement and calculation across multiple nodes.
Solution Approach 2:
The system merges traditional localization techniques with UWB network-based positioning to achieve both wide coverage and high precision. By combining multiple positioning methods and data sources, the system maintains accurate relative position information across extended areas without sacrificing measurement quality.
3Measurement precision
If the system uses anchor-based localization systems, then position information can be obtained, but the system becomes dependent on infrastructure and cannot operate independently
Solution Approach 1:
The patent extracts the essential positioning functionality from anchor-based infrastructure and implements it through peer-to-peer UWB measurements between user terminals. This extraction eliminates dependency on external infrastructure while maintaining position information accuracy, allowing independent operation without sacrificing measurement precision.
Solution Approach 2:
User terminals perform self-positioning by directly measuring relative positions through UWB communications with other terminals. Each device serves its own positioning needs without requiring external anchor infrastructure, achieving both independent operation capability and accurate position information through autonomous mutual measurement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and expanded interaction and information sharing among users within a wide area, including those beyond typical UWB range, using UWB networks and additional technologies like V2X and ad-hoc networks, without reliance on anchor-based systems.
Implementation Method 1
an ultra-wide band (UWB) communication module including any one or any combination of any two or more of a UWB sensor, a UWB antenna, and a UWB tag
Data Source
AI summary
An operating method of a user terminal, the operating method includes: configuring a first ultra-wide band (UWB) network corresponding to a target user based on first objects including the user terminal dependent on the target user, a UWB communication module including any one or any combination of any two or more of a UWB sensor, a UWB antenna, and a UWB tag; searching for a second UWB network corresponding to a multi-user adjacent to the first UWB network; obtaining, based on a result of the searching, relative position information between the target user and the multi-user by connecting the first UWB network to the second UWB network; and performing, based on the relative position information, interaction and information sharing between the target user and the multi-user.