Wireless Quality Area Selection at Communication Boundaries
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Solution Overview
Problem
Existing systems fail to accurately process information from wireless sensor nodes located at the boundary of communication areas, leading to mixed information from adjacent areas due to reliance on incorrect position information.
Innovation Solution
A server device and sensor device system that assigns area identification information to wireless quality information, allowing selection and display of relevant information based on the highest quality signals, ensuring accurate area identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If position information is determined based on the base station to which the wireless sensor node is connected, then the system can simplify position identification, but the position information becomes inaccurate at communication area boundaries causing information mixing from adjacent areas
Solution Approach 1:
The patent divides the communication area into multiple areas with different area identification information. When a wireless sensor node is located at a boundary, the system segments the position determination by selecting which area's information to use based on signal quality metrics, rather than relying on a single base station connection.
Solution Approach 2:
The patent changes the parameter used for position determination from simple base station connection to a composite parameter that includes area identification information and signal quality metrics. This allows the system to select the most accurate area information based on current communication conditions.
2Quantity of substance
If the system collects wireless quality information from multiple sensor devices, then the system can improve data coverage, but the information from different areas may be mixed without proper identification
Solution Approach 1:
The patent introduces area identification information as an intermediary element that links sensor devices to their respective areas. This intermediary allows the system to collect data from multiple sources while maintaining clear distinction between different areas, preventing information mixing.
3Device complexity
If the system uses base station information for position identification, then the system can simplify area identification, but the identified area may not match the actual area where the sensor node is located
Solution Approach 1:
The patent implements a feedback mechanism where the system evaluates signal quality metrics and area identification information to determine the most reliable area assignment. When a sensor node is at a boundary, the system uses feedback from multiple sources to select the correct area, improving identification reliability.
Data Source
AI summary
The server device according to the present disclosure includes: a communication unit (11) that receives, from a plurality of sensor devices that have collected a packet being transmitted from a first wireless terminal, sensor information in which area identification information for identifying an area in which the sensor device is installed is assigned to wireless quality information determined based on the packet, the wireless quality information indicating wireless quality, in a predetermined period, of the area; a selection unit (12) that selects first area identification information from a plurality of pieces of area identification information, based on the wireless quality information, when a received plurality of pieces of the sensor information include a plurality of pieces of the area identification information; and a display unit (13) that displays information related to the wireless quality information in the area indicated by the first area identification information.