Hub Selection for Sensor Terminals Using Radio Wave Strength
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Solution Overview
Problem
In wireless communication systems where multiple hubs collect data from sensor terminals, simultaneous connection attempts by multiple hubs to the same sensor terminal lead to performance degradation due to session establishment overhead, especially when one hub has already acquired data from the terminal and another attempts to establish and disconnect sessions with little data to be transmitted.
Innovation Solution
An information processing apparatus and communication system that acquire radio wave strength information from multiple hubs connected to a sensor terminal and select the hub with the strongest signal for stable communication, preventing multiple hubs from connecting to the same sensor terminal by notifying the selected hub and ensuring only that hub performs wireless communication with the sensor terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple hubs attempt to connect to the same sensor terminal simultaneously, then the sensor terminal can potentially transmit data to multiple hubs, but system performance degrades due to session establishment overhead and interference
Solution Approach 1:
The patent introduces a server as an intermediary that receives connection requests from multiple hubs, determines the optimal hub-sensor pairing based on radio wave strength, and coordinates the connection establishment. This mediator prevents direct conflicts between hubs while ensuring optimal data collection, resolving the contradiction between versatile data collection and system performance.
Solution Approach 2:
The server performs preliminary evaluation of connection requests by comparing radio wave strength information before allowing actual hub-sensor connections. By pre-determining which hub should connect to which sensor terminal, the system avoids subsequent connection conflicts and session establishment overhead, maintaining high productivity while preserving adaptability.
2Reliability
If a hub establishes a connection with a sensor terminal, then data can be transmitted, but unnecessary session establishment and disconnection occur when another hub attempts to connect to the same terminal
Solution Approach 1:
The system implements feedback mechanisms where hubs report radio wave strength information to the server, and the server provides binding decisions back to hubs. This feedback loop ensures that only the most suitable hub establishes connections, preventing unnecessary session establishment and disconnection, thereby reducing time loss while maintaining reliable data transmission.
3Ease of operation
If hubs transmit connection request signals simultaneously to sensor terminals, then connection establishment can occur, but interference occurs between simultaneous transmissions
Solution Approach 1:
The server acts as a mediator that receives connection requests from hubs before they attempt direct connection to sensor terminals. By coordinating connection establishment through the server, simultaneous transmission conflicts are avoided, eliminating signal interference while maintaining ease of operation for hub-sensor connectivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces performance degradation by ensuring only the hub with the strongest signal connects to the sensor terminal, improving communication quality and preventing unnecessary session establishment overhead.
Implementation Method 1
an acquisition unit configured to acquire first radio wave strength information and second radio wave strength information, the first radio wave strength information being information related to radio wave strength of a sensor in wireless communication between a first hub and the sensor, and the second radio wave strength information being information related to radio wave strength of the sensor in wireless communication between a second hub and the sensor
Data Source
AI summary
An example of an object of the present disclosure is to provide an information processing system, a communication system, a selection method, and a program for decreasing performance degradation in wireless communication. An embodiment of the present disclosure is an information processing system including an acquisition unit configured to acquire first radio wave strength information and second radio wave strength information, the first radio wave strength information being information related to radio wave strength of a sensor in wireless communication between a first hub and the sensor, and the second radio wave strength information being information related to radio wave strength of the sensor in wireless communication between the second hub and the sensor and selection unit configured to select a hub to be connected to the sensor based on the first radio wave strength information and the second radio wave strength information acquired by the acquisition unit.