UWB User Detection for Precise Indoor Location and Direction
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Solution Overview
Problem
Current monitoring systems face challenges in providing precise indoor location and direction detection, as well as efficient user authentication, especially in scenarios requiring fast and secure access, while also preventing fraud and impersonation, due to limitations in existing technologies such as Wi-Fi and Bluetooth.
Innovation Solution
The use of Ultra Wide Band (UWB) technology enables devices to communicate for precise indoor location and direction detection, authentication, and fraud prevention by penetrating building materials, allowing for seamless user detection and authorization through UWB-enabled devices that provide location and directionality information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If Wi-Fi or Bluetooth technology is used for user authentication and location detection, then the system can provide basic connectivity and authentication, but the location precision and directionality accuracy are insufficient
Solution Approach 1:
The patent changes the fundamental parameter of radio frequency transmission by adopting UWB technology, which operates at different frequencies with different propagation characteristics. This enables precise measurement of time of flight and angle of arrival, achieving centimeter-level location precision and accurate directionality detection that cannot be achieved with Wi-Fi or Bluetooth
2Measurement precision
If UWB technology is deployed throughout the property to achieve precise monitoring coverage, then location and direction detection accuracy improve, but the quantity of equipment and installation complexity increase
Solution Approach 1:
The patent makes the UWB device multi-functional by integrating multiple capabilities into a single device: authentication verification, precise location tracking, directionality detection, and fraud prevention. This eliminates the need for separate systems for each function, reducing overall equipment quantity while maintaining high measurement precision
Solution Approach 2:
The patent combines authentication, location, and directionality functions into a unified UWB-based system. The same UWB device that authenticates users also provides continuous location and direction tracking, merging multiple security and monitoring functions into one integrated solution
3Area of stationary object
If multiple sensors and monitoring devices are installed to cover all areas and prevent blind spots, then detection coverage improves, but system cost and complexity increase
Solution Approach 1:
The UWB device serves multiple monitoring purposes simultaneously: it detects user presence, tracks location throughout the property, determines directionality, and verifies authentication. This single multi-functional device replaces what would otherwise require multiple separate sensors and monitoring systems to achieve the same comprehensive coverage
4Productivity
If traditional authentication methods are used, then system simplicity is maintained, but authentication speed and security against fraud are insufficient
Solution Approach 1:
The patent implements continuous feedback by using UWB to track the real-time location and directionality of authenticated users. The system continuously monitors whether users remain in authorized locations and can immediately detect and respond to suspicious behavior or attempted fraud, providing ongoing verification rather than one-time authentication
Solution Approach 2:
The system performs preliminary authentication verification by checking not only the user's identity but also their location and directionality before allowing transactions. This preliminary check prevents fraudulent transactions by ensuring the authenticated user is physically present at the correct location and oriented appropriately
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for user detection. In some implementations, a corresponding method includes obtaining an authorized user list including first identification information of an Ultra Wide Band (UWB) device; obtaining, from the UWB device, (i) location information of the UWB device at a property, (ii) directionality information of the UWB device, and (iii) second identification information of the UWB device; determining the first identification information of the UWB device matches the second identification information of the UWB device; determining the location information and the directionality information of the UWB device satisfy a predetermined authorization requirement for the property; and sending, to a control device of the property, an access signal that is configured to allow a user associated with the UWB device to access an area of the property.