Wi-Fi Access Point List for Indoor Location Recognition
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Solution Overview
Problem
Existing location recognition methods for electronic devices, such as those using GPS and Bluetooth beacons, face challenges in indoor settings and require additional devices, making them inconvenient for users, especially when location changes occur frequently.
Innovation Solution
The method employs a network of Wi-Fi access points to recognize a device's location by collecting and processing signal strength data from nearby access points, creating a unique access point list that includes mean and standard deviation values, allowing the device to determine its location and perform specific functions when it arrives at predefined locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS is used for location recognition, then outdoor location accuracy is improved, but indoor location recognition becomes unavailable
Solution Approach 1:
The patent applies universality by making the Wi-Fi access point network serve multiple functions: it provides both wireless internet connectivity and location recognition services. The existing Wi-Fi infrastructure is utilized for dual purposes, eliminating the need for separate GPS receivers or Bluetooth beacon systems, and enabling both indoor and outdoor location capabilities through a single system.
2Adaptability or versatility
If Bluetooth beacons are deployed for indoor location recognition, then indoor location capability is improved, but device complexity and cost increase due to additional devices
Solution Approach 1:
The patent applies universality by making the Wi-Fi access point network serve multiple functions: it provides both wireless internet connectivity and location recognition services. The existing Wi-Fi infrastructure is utilized for dual purposes, eliminating the need for separate GPS receivers or Bluetooth beacon systems, and enabling both indoor and outdoor location capabilities through a single system.
Solution Approach 2:
The patent applies self-service by enabling the electronic device to perform location recognition autonomously using its built-in Wi-Fi transceiver. The device automatically scans for access points, collects signal strength data, compares it with stored information, and determines its location without requiring additional external devices or manual intervention, thereby reducing system complexity.
3Adaptability or versatility
If Bluetooth beacons are used for location recognition, then indoor location capability is improved, but user convenience deteriorates due to frequent resetting requirements
Solution Approach 1:
The patent applies self-service by enabling the electronic device to perform location recognition autonomously using its built-in Wi-Fi transceiver. The device automatically scans for access points, collects signal strength data, compares it with stored information, and determines its location without requiring additional external devices or manual intervention, thereby reducing system complexity.
4Device complexity
If Wi-Fi access points are used for location recognition, then additional device requirements are reduced, but measurement precision may be affected by signal variability
Solution Approach 1:
The patent applies feedback by implementing a mechanism where the electronic device continuously scans for Wi-Fi access points, compares current signal strength data with previously stored information, and uses this feedback to determine and update its location. The system collects signal strength values from multiple access points, compares them with stored data, and refines location determination through this iterative feedback process, thereby maintaining precision despite signal variability.
Data Source
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AI summary
In various example embodiments, an electronic device includes a communication module comprising communication circuitry, a memory, and a processor. The communication module is configured to receive access point (AP) information from each of a plurality of AP devices. The processor is configured to receive, from the AP information, a strength value of a signal and a unique value of the AP device that transmits the signal, and to processes the AP information, based on the strength value of the signal and the unique value of the AP device. Also, the processor is configured to create an AP list as information for indicating a location of the electronic device, based on a result of processing the AP information, and to store the created AP list in the memory. The processor is configured to determine whether the AP information satisfies a condition for performing a predefined function with regard to the AP list stored in the memory, and to perform the predefined function if the condition is satisfied.