UWB Indoor Positioning Role Negotiation
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Solution Overview
Problem
Existing electronic device positioning methods, such as GPS and Wi-Fi, are inaccurate indoors and fail to adaptively use various positioning algorithms due to limitations in signal characteristics and power consumption, leading to security issues and inefficient interactions between devices with different positioning capabilities.
Innovation Solution
The use of ultra-wideband signals for accurate indoor positioning, enabling flexible adjacency-based access by negotiating roles and algorithms between electronic devices, allowing for precise distance and direction measurement with low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If satellite system-based positioning (GPS) is used, then positioning can be performed, but accuracy deteriorates severely indoors
Solution Approach 1:
The patent changes the positioning parameter from satellite-based global positioning to ultra-wideband (UWB) signal-based local positioning. UWB signals operate at different frequency parameters and propagation characteristics, enabling accurate indoor positioning by measuring time of flight and signal characteristics within the building environment, thus resolving the GPS accuracy deterioration indoors problem
Solution Approach 2:
The patent introduces UWB signals as an intermediary between devices for positioning purposes. Instead of relying on satellite signals, the system uses UWB electromagnetic waves transmitted between electronic devices to measure distance and determine position, serving as a mediator that enables accurate indoor positioning without requiring satellite coverage
2Adaptability or versatility
If multiple positioning algorithms are implemented, then adaptability to different devices improves, but device complexity increases
Solution Approach 1:
The patent implements dynamic role negotiation between positioning devices. Instead of having all devices run complex positioning algorithms, the system dynamically assigns roles (e.g., anchor device vs. mobile device) based on capabilities and requirements. This dynamic adaptation allows the system to use simpler algorithms when possible while maintaining high adaptability to different device configurations
Solution Approach 2:
The patent creates a universal positioning framework where different devices can participate with varying levels of capability. The system supports multiple positioning algorithms (UWB, Wi-Fi, Bluetooth) and can adapt to devices with different hardware capabilities through a common interface, achieving multi-functionality without requiring each device to implement all algorithms
3Adaptability or versatility
If role negotiation for positioning is implemented, then adaptability between devices with different capabilities improves, but positioning time increases
Solution Approach 1:
The patent implements preliminary role negotiation and capability exchange between devices before actual positioning begins. Devices exchange information about their positioning capabilities and agree on roles in advance, allowing the main positioning operation to proceed more quickly without time-consuming adjustments during the positioning process itself
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
This approach provides highly accurate and adaptive positioning indoors, enhancing security and interaction efficiency between electronic devices with different capabilities, while reducing power consumption and vulnerability to signal noise.
Implementation Method 1
accurate positioning may be performed indoors by using positioning based on an ultra-wideband signal
Data Source
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AI summary
Disclosed is an electronic device including a communication circuit and a processor. The processor may be configured to communicate with an external electronic device based on a specified protocol, using the communication circuit, to receive first information at least including type information of the external electronic device based on the specified protocol, using the communication circuit, and to determine a positioning master for measuring a distance between the electronic device and the external electronic device based at least on the first information among the electronic device and the external electronic device. Other various embodiments as understood from the specification are also possible.