Location Estimation Using Dynamic Beacon Mode Transition
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Solution Overview
Problem
GPS-based location estimation systems are ineffective in environments with weak satellite signals, such as indoor and underground settings.
Innovation Solution
A method for location estimation that involves receiving signals from location beacons, transmitting location request signals with varying power levels, and estimating the client device's location based on echo signals, allowing the device to transition between client and location beacon operational modes to achieve accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS-based location estimation is used, then location determination is effective in open environments, but it fails in indoor and underground environments with weak satellite signals
Solution Approach 1:
The patent introduces location beacons as intermediary devices that relay location information between the client device and the positioning system. These beacons are deployed in the target environment (indoor/underground) and serve as local reference points, enabling location estimation where GPS satellites cannot be directly accessed.
Solution Approach 2:
The patent replaces the satellite-based GPS system with a local beacon-based positioning system. Instead of relying on electromagnetic signals from space, the system uses local transmitters (beacons) that broadcast position information, substituting the external satellite infrastructure with a deployable local infrastructure suitable for indoor and underground environments.
2Measurement precision
If multiple location beacons are deployed to improve location accuracy, then positioning precision increases, but system complexity and deployment cost increase
Solution Approach 1:
The patent designs location beacons with multi-functionality, allowing them to serve both as position reference points and as communication nodes. The beacons can operate in different modes (transmitting only, or transmitting and relaying client device signals), reducing the need for separate infrastructure components and simplifying the overall system architecture.
Solution Approach 2:
The patent implements dynamic operational modes for location beacons, where devices can transition between functioning as client devices and functioning as location beacons. This dynamic capability allows the system to adapt the number and distribution of beacons based on real-time requirements, optimizing accuracy while managing system complexity.
3Speed
If location beacons transmit continuously to maintain accurate positioning, then location updates are real-time, but energy consumption increases
Solution Approach 1:
The patent implements periodic transmission modes for location beacons, where beacons transmit position information at scheduled intervals rather than continuously. This periodic action maintains adequate location update frequency for most applications while dramatically reducing energy consumption compared to continuous transmission.
Solution Approach 2:
The patent enables dynamic adjustment of transmission frequency based on operational requirements and power availability. Location beacons can switch between different operational modes (e.g., continuous, periodic, or event-triggered transmission) and can transition between client and beacon roles, allowing the system to optimize the balance between real-time updates and energy conservation.
Data Source
AI summary
A device and method for providing location estimations. The device may be configured to estimate its location by transmitting and/or receiving signals of respective transmission ranges. The device may also be configured to transition from a client device operational mode to a location beacon operational mode once an accurate location estimation has been obtained.