Personalized Device Coordinator Selection via Connection History Priority
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Solution Overview
Problem
In a ubiquitous environment with multiple coordinator devices, personalized devices face challenges in quickly and accurately connecting to the correct coordinator for wireless communication, as existing methods like IEEE 802.15.4 are not suitable for wireless connections between coordinator devices and personalized devices.
Innovation Solution
A method where personalized devices store recent connection information and prioritize coordinator devices based on recent or frequent connections, setting channels to receive connection information, determining the target coordinator, and repeatedly scanning until the correct coordinator is found, with the option to request connection information and temporarily store information for next highest priority connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the conventional IEEE 802.15.4 method is used to decide a coordinator device based on physical characteristics like received radio wave intensity, then the decision process is simple, but the connection accuracy and suitability for wireless environments are poor
Solution Approach 1:
The personalized device performs preliminary actions by storing recent connection information and pre-calculating connection priorities before the actual connection decision is needed. This allows the device to quickly retrieve and use historical data (connection frequency, duration, stability) to determine the priority of coordinator devices, eliminating the need for complex real-time physical characteristic measurements and enabling accurate connection decisions in wireless environments.
2Productivity
If the personalized device stores and uses recent connection information to decide coordinator priority, then the connection speed and accuracy are improved, but the memory requirements and processing complexity increase
Solution Approach 1:
The system applies local quality by focusing on storing and processing only the most relevant connection information (recent connections with highest priority) rather than all historical data. The personalized device maintains a manageable set of connection records with key attributes (frequency, duration, stability) and processes only the top priority candidates, reducing memory and processing requirements while maintaining high connection speed and accuracy.
3Reliability
If the personalized device repeatedly scans for connection information from multiple coordinator devices, then the connection reliability is improved, but the time required for connection decision increases
Solution Approach 1:
The personalized device performs preliminary action by pre-establishing connection priorities based on stored historical data before the scanning process begins. This allows the device to scan coordinator devices in a predetermined priority order rather than randomly or systematically checking all possibilities, significantly reducing the time required while maintaining high connection reliability by focusing on the most likely candidates first.
Solution Approach 2:
The system implements continuity of useful action by continuously updating and maintaining connection information in the personalized device's memory, enabling rapid retrieval and priority calculation. This continuous maintenance of connection data allows the device to quickly determine scanning order and efficiently complete connection decisions without repeated time-consuming searches, balancing reliability with speed.
Data Source
AI summary
A method for connecting personalized devices through a wireless link, a personalized device, and a wireless connection system using the same are provided. In the method, wireless connection information of a plurality of coordinator devices connected to a personalized device through a wireless link up to now is stored and a priority of the coordinator device is decided using the stored connection information. Then, a channel is set to receive connection information, and connection information is received from a coordinator device through the set channel. If the coordinator device transmitting the connection information is the coordinator to connect, the coordinator device is connected. If not, a coordinator device having the next highest priority is decided.