Wireless ID Matching for Accurate Indoor Location Detection
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Solution Overview
Problem
Existing electronic devices lack an effective method to accurately determine whether a user is indoors or outdoors for safe driving support systems, leading to potential safety issues due to incorrect notifications.
Innovation Solution
An electronic apparatus equipped with a communication unit and processor that performs determination processing by comparing received identification information with registered information, using a combination of network name and signal strength, as well as positional information, to specify the user's location as indoors or outdoors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is used to detect user location, then the system can provide safe driving support notifications, but the accuracy of determining whether the user is indoors or outdoors is insufficient
Solution Approach 1:
The patent combines multiple identification methods (network name matching, signal strength measurement, and positional information from GPS) into a composite location determination system. This multi-parameter approach resolves the contradiction by maintaining reliable safe driving support functionality while significantly improving location determination accuracy through data fusion from different sources.
Solution Approach 2:
The system changes from using a single parameter (wireless signal presence) to multiple parameters (network name, signal strength RSSI, positional coordinates) for location determination. This parameter expansion enables more precise differentiation between indoor and outdoor environments while preserving the reliability of safe driving support notifications.
2Ease of operation
If location determination is performed using simple wireless signal detection, then the system operation is simple, but the determination accuracy of indoor/outdoor location is insufficient
Solution Approach 1:
The location determination process is segmented into distinct evaluation stages: first checking network name matches against registered indoor networks, then measuring signal strength as a secondary criterion, and finally using positional information as a third layer of verification. This segmented approach maintains operational simplicity through structured decision-making while achieving high determination accuracy through cumulative evidence.
3Measurement precision
If multiple parameters (network name, signal strength, position) are used for location determination, then location accuracy is improved, but the device complexity increases
Solution Approach 1:
The system dynamically adjusts the weight and usage of different determination parameters based on their availability and reliability in the current context. For example, GPS positional information is prioritized when available, while network name matching is used when the device is in wireless coverage areas. This dynamic parameter selection reduces unnecessary processing complexity while maintaining high location determination accuracy.
Data Source
AI summary
An electronic apparatus includes a communication unit configured to perform wireless communication, a storage, a first determiner, and an indoor specifying unit. The storage stores therein, as registered identification information, identification information whose contents are changeable, the identification information being allocated to a first communication device with which the communication unit is capable of performing wireless communication. The first determiner determines whether received identification information agrees with the registered identification information, the received identification information being the identification information received by the communication unit from a second communication device and allocated to the second communication device. The indoor specifying unit performs indoor specification to specify that a user having the electronic apparatus is indoors, based on a first result of determination by the first determiner.